2026-04-08T21:38:41Z https://lup.lub.lu.se/student-papers/oai

oai:lup-student-papers.lub.lu.se:1479049 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Andersson Hannes author Prof Lennart Thörnqvist supervisor Department of Energy Sciences v1000205 department Idre Fjälls snow production has been analyzed in cooperation with Snowtech AB. A<br /> survey of the energy use and how to decrease the energy use was carried out. The first<br /> part is about snow and snowmaking.<br /> Natural snow consists of water molecules that form a hexagonal pattern in solid state.<br /> The reason to the hexagonal pattern is due to dendritic growth during the snow<br /> crystals journey through the cloud towards the ground. Snow from snow guns is<br /> spherical in shape in contrast to natural snow, which has a hexagonal pattern.<br /> Depending on the type of snow gun that is used different amount of snow is produced<br /> depending on the wet bulb temperature. With the current modern snow guns the snow<br /> quality is not dependent on the temperature instead the amount of snow produced<br /> increases with decreasing temperature.<br /> The foundation Idre Fjäll is the second largest ski resort company in Sweden if<br /> turnover is counted. Approximately 15 GWh is used during one year, 3 GWh or 20 %<br /> is used to produce snow. Compressing air uses largest amount of energy. https://lup.lub.lu.se/student-papers/record/1479049/file/1479050.pdf application/pdf 5585700 no 2009 swe energieffektivisering snötillverkning Technology and Engineering 1479049 2009-09-22T11:36:30+02:00 2009-09-22T11:49:58+02:00 2009-09-22T11:49:58+02:00

oai:lup-student-papers.lub.lu.se:1391638 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Olof Grände author Tobias Westerdahl author Prof Lennart Thörnqvist supervisor Department of Energy Sciences v1000205 department This thesis describes an energy mapping of the factory of Trioplast Landskrona AB och Trioplanex International AB and suggestions on how to make it more energy efficient. The purpose is to lower the company&#39;s energy utilization and costs. This is done by doing the energy mapping through ocular surveys, interviews, studies of literature and gathering of information from the staff of the factory. An evaluation shows that there are opportunities to decrease the energy cost. https://lup.lub.lu.se/student-papers/record/1391638/file/1391675.pdf application/pdf 2585087 no 2009 swe Reaktiv effekt Värmeåtervinning Vakuum Tryckluft Ventilation Belysning Energikartläggning Energieffektivisering Trioplanex International AB Trioplast Landskrona AB Technology and Engineering 1391638 2009-04-30T10:59:19+02:00 2009-04-30T11:38:54+02:00 2009-04-30T11:38:54+02:00

oai:lup-student-papers.lub.lu.se:1393089 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Daniel Jarnekrans author Dr Jenny Larfeldt supervisor professor Xue-Song Bai supervisor Department of Energy Sciences v1000205 department The purpose of this Master’s Thesis is to develop a model for numerical simulations in order to kinetically characterize different Medium Calorific- Low Calorific Value (MCV-LCV) fuel gas mixtures. Adding fuel components with a very low heating value or inert species affect the stability of the standard gas turbine combustor design.<br /> Siemens Industrial Turbomachinery (SIT) believes that increasing the fuel flexibility of their current gas turbine combustors is important in maintaining a leading position on the industrial power generation market.<br /> The numerical model development has included a test of chemical reaction mechanisms suitable for modelling syngas co-fired with natural gas. Predictions of laminar flame speed and ignition delay time for various syngas fuel mixtures at different pressures and initial temperatures have been compared to experimental data. Two different reactor models suitable for ignition delay time calculations have also been evaluated. ChemKin is the primary software used in this work but a performance test of the open-source chemical kinetics code package Cantera has also been conducted for comparisons.<br /> An investigation of the global chemical time scale, which is a fuel mixture characteristic, was performed to find a possible correlation with experimental flameout/flameback data from rig tests with a SIT burner. A correlation between the global chemical time and the limit for flameout was found for nitrogen content up to 35% by volume in the natural gas fuel for the AEV LB000 reference burner. For very high inert content in the natural gas fuel additional fluid dynamic effects becomes increasingly important, hence further confirms that the ultimate flameout limit is governed by the flow and the specific burner.<br /> For an arbitrary burner, auto ignition in the burner mixing tube might be relevant for inducing a possible flameback. A general investigation of the ignition delay time scale has therefore been included. The risk of flameback/flashback is known to increase when adding highly diffusive species to the fuel. It is clear that auto ignition may also be a relevant mechanism in inducing/supporting a flameback, given a sufficiently high temperature for ignition. For the LB000 burner standard operating conditions, ignition delay is irrelevant due to low air preheat temperature. Ignition delay time simulations are preferably performed using a homogeneous constant-pressure reactor, determining ignition by the maximum temperature gradient.<br /> Further development of chemical mechanisms suitable for modelling laminar flame speed and ignition delay of syngas-natural gas fuel mixtures at gas turbine operating conditions is required. The laminar flame speed predictions of ChemKin however proved quite accurate for lean mixtures at low preheat temperatures.<br /> The open-source software Cantera has proven to be a flexible code consistently over-predicting the laminar flame speed compared to ChemKin. It is also less user-friendly due to the lack of code documentation and technical support. https://lup.lub.lu.se/student-papers/record/1393089/file/1393107.pdf application/pdf 1815152 no 2007 eng Combustion characteristics fuels kinetics gas turbine conditions Technology and Engineering 1393089 2009-05-05T15:35:53+02:00 2009-06-23T10:40:41+02:00 2009-06-23T10:40:41+02:00

oai:lup-student-papers.lub.lu.se:1365536 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Xiulan He author 1362033 Professor Cintia Bertacchi Uvo supervisor Division of Water Resources Engineering v1000225 department The Scania-HBV model has been used for modeling hydropower generation of California, USA. California is a state with considerable meteorological and hydrological diversity, meanwhile with a total capacity of 14116 MW of 386 hydroelectricity generation units with capacity larger than 0.1 MW, California is the USA’s second largest state on hydropower. For such a giant hydropower state, prediction of hydropower generation could yield big profit in the energy market, and the well developed Scania-HBV makes this prediction possible. However, as a conceptual model, Scania-HBV has to be adapted for individual situation, and thus model calibration and validation are compulsory for a reliable prediction. Meteorological and hydrological data together with generation data from 1981 to 2006 were collected, and used for calibration and validation of the model. The state was divided into three sub-regions that were modeled individually. https://lup.lub.lu.se/student-papers/record/1365536/file/1384346.pdf application/pdf 2050203 no 2009 eng hydropower Scania-HBV calibration California Technology and Engineering 1101-9824 08/5013 Examiner: Rolf Larsson 1365536 2009-03-23T19:33:29+01:00 2019-03-27T10:54:19+01:00 2009-04-22T12:16:35+02:00

oai:lup-student-papers.lub.lu.se:1423513 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Peder Berne author Prof Lennart Thörnqvist supervisor Department of Energy Sciences v1000205 department Sammanfattning<br /> Alltmedan miljödebatten får större utrymme i media, har efterfrågan på miljöklassificerade<br /> energiprodukter ökat. Miljöklassificeringar för elprodukter är etablerade sedan en tid tillbaka<br /> och erbjuds i olika kommersialiserade varianter. Miljöklassificeringar av fjärvärmeleveranser<br /> är däremot inte lika etablerat. Den senaste tiden har fjärrvärmeleverantörerna mött en ökad<br /> kundefterfrågan på miljöklassificerade fjärrvärmeleveranser. Kundefterfrågan har framförallt<br /> varit tydlig från företagskunderna och fjärrvärmeleverantörerna har mött denna efterfrågan på<br /> olika sätt. En del har valt att tillämpa Naturskyddsföreningens märkning Bra Miljöval medan<br /> andra har valt sina egna definitioner på en miljöklassificerad fjärrvärmeleverans.<br /> Syftet med detta examensarbete är dels att belysa metoderna för att miljöklassificera en<br /> fjärrvärmeleverans. Jag kommer även att diskutera de märkningar som finns tillgängliga på<br /> marknaden. Huruvida en produkt är miljövänlig eller ej kan vara svårt att definiera och en<br /> möjlighet är att utnyttja en extern märkning. För fjärrvärme är det framförallt återvunnen<br /> energi, förbränning av förnybara bränslen och till viss del värmepumpar som kan användas<br /> för att klassificera en fjärrvärmeleverans som miljöanpassad.<br /> I examensarbetet presenteras de dimensioner av en miljöenergiprodukt, som enligt mitt<br /> förarbete skulle kunna vara de primära för den företagsekonomiska nyttan. Dessa dimensioner<br /> används för att utvärdera nyttan av ett antal av de produktdefinitioner som redovisas i<br /> rapporten. Dimensionerna som utvärderas är ”Varumärket”, ”Intressentkrav”,<br /> ”Miljöpåverkan”, ”Differentiering” och ”Ekonomi”. Det är av betydelse hur miljöenergiprodukten<br /> påverkar företagets varumärke och image. Detta gäller både företaget som<br /> erbjuder produkten och kunden ifråga. Av betydelse är även huruvida produkten underlättar<br /> att uppfylla de krav som ägare, samhället, myndigheter och kunder ställer. Produkten bör även<br /> stämma överens med energibolagets policys, mål och strategier. Vid utvärdering av<br /> företagsekonomiska nyttan är en produkts miljöpåverkan främst intressant ur ett<br /> trovärdighetsperspektiv. Om det är svårt att visa en miljövinst associerad till produkten är det<br /> även svårt att argumentera för produkten eller att ta ut en extra avgift för den. Ytterligare en<br /> viktig aspekt hos en energimiljöprodukt är om den innebär någon form av differentiering,<br /> vilket gäller både för energibolagen och energibolagens kunder. Att ha miljöanpassade eller<br /> miljömärkta produkter kan vara nödvändigt för att inte tappa marknadsandelar och kan<br /> samtidigt vara ett sätt att öka dessa, i synnerhet om produkten är exklusiv. Den ekonomiska<br /> dimensionen är av betydelse när produkten kommuniceras till ledningar, styrelser eller andra<br /> beslutsfattande instanser. Det är viktigt att översätta miljöaspekterna associerade till<br /> produkten i ekonomisk terminologi. Att prioritera vilka åtgärder eller produkter företaget ska<br /> satsa på inbegriper mer än bara miljöaspekterna. Någon form av kostnads- och<br /> nyttobedömning bör göras. Det kan dock vara svårt att värdera olika nyttor som inte direkt går<br /> att mäta i ren ekonomisk vinning.<br /> Förutsättningarna för energibolagen att differentiera sig avseende miljö inom sitt avgränsade<br /> distributionsnät påverkas av hur produktionen av värme till nätet sker. Andelen förnybart<br /> biobränsle i den svenska fjärrvärmeproduktionen har ökat vilket är en följd av att energibolagen<br /> konverterar från fossila bränslen till förnybara. Om det inte finns några möjligheter<br /> att miljöklassificera hela nätet genom till exempel bränslemixen, så kan en viss del av<br /> leveransen i nätet märkas genom allokering, eller så kan fjärvärmebolaget kompensera för<br /> utsläppen. Allokeringar avser i sammanhanget att en del av befintlig produktionsmix bryts ut<br /> och klassificeras som en egen produkt. Att definiera en energiprodukt som miljöanpassad<br /> genom kompensation kan göras på olika sätt. Det mest etablerade alternativet för att<br /> 8<br /> kompensera växthusutsläpp är att utnyttja CDM (Clean Development Mechanism) systemet<br /> genom att köpa och kompensera med CER (Certified Emission Reductions).<br /> Naturskyddsföreningen (SNF) tillhandahåller märkningen Bra Miljöval. Märkningen är<br /> tillämpningsbar på en rad produkter inom olika områden. Den är väl etablerad och nyligen<br /> utarbetade SNF kriterier för att kunna Bra Miljövalsmärka värmeleveranser. Både<br /> allokeringsprodukten och Bra Miljövalsprodukten kräver någon form av allokering inom<br /> aktuellt nät så länge inte hela leveransen uppfyller kraven för produkten. Detta innebär två<br /> parallella produkter, där den ena får ett sämre miljövärde. På elnätet är det etablerat att sälja<br /> parallella produkter på samma nät, vilket tycks fungera. Om så även är fallet för fjärrvärme<br /> har allokeringslösningen potential att få genomslag.<br /> Utifrån analysen av produktdefinitionerna är märkningen Bra Miljöval Värme den som ger<br /> mest företagsekonomisk nytta. Utvärderingen tar dock inte hänsyn till om en fjärrvärmeleverantör<br /> värdesätter de olika dimensionerna olika mycket. Ur fjärvärmeleverantörens<br /> perspektiv får Bra Miljöval Värme högst nytta för dimensionerna ”Varumärket”,<br /> ”Intressentkrav” och ”Miljö” medan Kompensationsprodukten får högst värdering för<br /> dimensionen ”Differentiering” och allokeringsprodukten får högst värdering för dimensionen<br /> ”Ekonomi”. Allokeringsprodukten får även en hög värdering för dimensionen<br /> ”Intressentkrav”.<br /> Många kunder efterfrågar miljöprodukter och om ett energibolag inte följer upp den ökade<br /> efterfrågan finns risken att tappa volym till konkurrenter. Jag tror att en satsning på en<br /> miljöprodukt, som tar ett brett grepp kring problematiken är mer långsiktigt säkert och ett bra<br /> sätt för ett energibolag att differentiera sig på. En produkt med egenskapen att dess miljövinst<br /> går att kommunicera på ett trovärdigt sätt har en rad fördelar.<br /> Jag tror det finns mycket att vinna på att hinna före konkurrenter och vinna marknadsandelar<br /> och stärka sitt varumärke genom att ligga i fronten för miljöarbetet inom branschen snarare än<br /> att avvaktande se vad andra gör. Om ett energibolag vill följa denna linje bör de erbjuda<br /> produkter som inte är uddlösa utan faktiskt gör någon skillnad. Om ett energibolag ska ta en<br /> position som ett innovativt och proaktivt företag med en tydlig miljöprofil finns belägg för<br /> hypotesen att denna strävan bör ske långsiktigt. Oavsett vilken strategi företaget väljer inom<br /> ramen för ett proaktivt förhållningssätt så tycks det till stor del handla om att förbereda sig<br /> inför framtiden. Ju mer förberett och rätt i tiden ett företag är, desto bättre rustat är företaget<br /> för att möta nya strategiska utmaningar.<br /> Utifrån de produktdefinitioner som presenterats tror jag att Kompensationsprodukten och<br /> Allokeringsprodukten är de mest troliga på marknaden idag. Av dessa två tror jag att fler<br /> energibolag väljer att utnyttja allokering, då detta är det mest kostnadseffektiva. För externa<br /> märkningar tror jag att Bra Miljöval Värme kommer att ha genomslag på marknaden.<br /> Benämningen ”Klimatneutral” är en stark utfästelse och är svår att argumentera för. Det är<br /> inte troligt att en fjärrvärmeprodukt med benämningen ”Klimatneutral” kommer att kunna<br /> leva upp till de krav som ställs enligt marknadsföringslagen och Internationella<br /> handelskammaren. Det kan således förefalla vara mer strategiskt att ha produktens verkliga<br /> och utmärkande egenskaper i fokus vid val av benämning. https://lup.lub.lu.se/student-papers/record/1423513/file/1423770.pdf application/pdf 926372 no 2009 swe fjärrvärmeprodukt miljöklassificering Technology and Engineering 1423513 2009-06-16T13:29:17+02:00 2009-06-23T10:38:26+02:00 2009-06-23T10:38:26+02:00

oai:lup-student-papers.lub.lu.se:1423676 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Jakob Thynell author Martin Zander author Prof Svend Frederiksen supervisor Department of Energy Sciences v1000205 department This master thesis was done in cooperation with the Danish district heating<br /> company, Vestegnens Kraftvarmeselskab I/S. VEKS is a transmission<br /> company supplying heat in western Copenhagen, Denmark.<br /> VEKS wanted a global analysis over the possibilities to decrease the cost<br /> and carbon dioxide emissions from purchased heat through decentralized<br /> accumulation.<br /> To cover all economical and environmental reasons for accumulation, four<br /> posts were analyzed. The four posts included were: reducing the peak‐load,<br /> optimization of base‐load, analyzing variation in heat load and existing<br /> accumulators and finally simulations with optimization tools.<br /> The conclusion was that it takes at least a 60 MWh accumulator with a<br /> capacity of 15 MW to lower the load factor in the north section of VEKS<br /> transmission network. The storage volume has to be 1 150 cubic meters<br /> with a height on 18.5 meters and a diameter of 8.9 meters.<br /> It is not profitable for VEKS to invest in a decentralized accumulator. The<br /> payback time is 12 years without taking the interest into account. If the<br /> interest is taking into account, the investment never pays off. The total<br /> reduced cost for purchased heat was estimated to 900 thousands Danish<br /> kronor with 420 tonnes of reduced carbon dioxide emissions annually.<br /> The local CHP‐plant Avedøre has an accumulator with a storage volume of<br /> 2 600 MWh. Instead of investing in a decentralized accumulator it would<br /> be wise to use the existing Avedøre accumulators more effective.<br /> We have not found any situations where there is need for further<br /> accumulation capacity over 24 hours, thereby we do not exclude the<br /> possibilities that they in fact exists. https://lup.lub.lu.se/student-papers/record/1423676/file/1423799.pdf application/pdf 2513132 no 2008 swe ackumulering fjärrvärmenät Technology and Engineering 1423676 2009-06-16T13:53:43+02:00 2009-06-23T10:39:48+02:00 2009-06-23T10:39:48+02:00

oai:lup-student-papers.lub.lu.se:1423731 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Eric Månsson author Prof Bengt Sundén supervisor Department of Energy Sciences v1000205 department The intention of this master thesis is to model the internal flow of an Alfa Laval course Filter with 20 cm inlet and normal outlet (ALF20), which is an automatic self cleaning filter aimed to rinse the cooling water upstream the inlet of a compact heat exchanger. Along the automatic cleaning process the ALF20 turn into a flushing and a back flushing operation mode. The ALF20 consists of a filter body, a diverter valve and a filter basket. Three connection tubes where the inlet, the outlet and the flushing outlet pressure were measured were connected and used in the measurement. Two filter baskets were available with different hole diameters and hole area percentage. <br /> Experimental measurements of pressure difference and temperature are done for normal, flushing and back flushing operation modes in the Process Laboratory at Alfa Laval AB in Lund. The measurement considers flow in empty the ALF20 filter house, the empty ALF20 with diverter valve and the ALF20 in full configuration with filter baskets 1 or 2 attached. Alternative cylinders aimed to simulate fouling are attached in further measurements. <br /> The computational fluid dynamics calculation model has been developed and checked while comparing computational results with the measurement tests of the corresponding test cases. <br /> A literature survey is presented covering related topics in basic fluid dynamics, empirical data regarding flow through perforation holes, turbulence and Computational Fluid Dynamics.<br /> Since the radial forces on the filter basket may result in failure, these forces will be evaluated in terms of direction and magnitude at the filter basket surface. <br /> The internal flow geometries of measured ALF20 (CAD drawing received from Alafa Laval A/S. Soeborg) cases are created and meshed for use in the commercial Computational Fluid Dynamics (CFD) software FLUENT. Evaluations are done to determine a grid independent mesh, most suitable turbulence model and the most appropriate inlet velocity boundary condition. <br /> Since, the filter baskets is made of a perforated plate consisting of a large number of holes which not can be represented in the model in detail, a porous medium model is used to represent the perforated areas. Pressure loss coefficients are taken from the literature and are modified according to local kinetic energy and pressure differences over the filter basket surface. Pressure differences and velocities are taken from preliminary CFD simulation using non modified pressure loss coefficient. <br /> All computational results are post processed in FLUENT and presented in the form of velocity path lines, pressure contours and tables. Comparisons with the measured experimental pressure drop are done for all cases and can be found in the result tables. Since the deviation from measured results is moderate, the computational model seems to agree well with the real flow situation. <br /> Radial forces pointing from the outside of the filter basket towards the center seems to occur in the back flushing mode in the rear end of the filter basket. https://lup.lub.lu.se/student-papers/record/1423731/file/1423798.doc application/x-ole-storage 12955136 no 2008 eng self cleaning CFD Simulations filter Technology and Engineering 1423731 2009-06-16T14:19:36+02:00 2009-06-23T10:39:23+02:00 2009-06-23T10:39:23+02:00

oai:lup-student-papers.lub.lu.se:1423748 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Adrian Dahlquist N author Magnus Genrup supervisor Department of Energy Sciences v1000205 department A brief description of the physical flow phenomena in a blade row that creates losses<br /> in an axial gas turbine and correlations to estimate these losses in a mean line<br /> calculation are given. Investigation and comparison of the loss correlations for 1D<br /> mean line calculation between the in-house program (CTC) used at Siemens and loss<br /> correlations present in the open literature were made. The investigation is primarily<br /> focused on the problems associated with modeling off-design effects on profile and<br /> secondary losses, and the effect of tip leakage losses at all loads. For the off-design<br /> condition both positive and negative flow incidence were covered with internal tests<br /> and numerical 2D investigations. The increase in blade losses at high outlet Mach<br /> number and how it is related to the shape of the suction surface for a blade profile was<br /> investigated with numerical 2D simulation.<br /> The results for the loss models are validated against previous done internal gas turbine<br /> test runs at Siemens, external cascade tests and numerical 2D simulations.<br /> The overall conclusions are that the in-house program (CTC) shows good prediction<br /> ability for the off-design down to the state where the turbine reaches turn-up mode.<br /> But some questions about CTC’s distribution between profile and secondary losses<br /> are discussed.<br /> For the tip leakage loss it was highlighted that CTC shows a somewhat low loss for a<br /> constant clearance and also a rather low increase with relative clearance change. A<br /> limitation in the prediction ability because the absence of some believed important<br /> parameter was also seen and an alternative model was suggested for unshrouded<br /> blades.<br /> It is clear that there for most blade designs is seen a sudden increase in the blade<br /> losses at an outlet Mach number in the region of 0.9. But no obvious relations to<br /> which blade parameters that determine the absolute increase were found https://lup.lub.lu.se/student-papers/record/1423748/file/1423797.pdf application/pdf 2220137 no 2009 eng Loss models axial gas turbines Technology and Engineering 1423748 2009-06-16T14:30:04+02:00 2009-06-23T10:38:56+02:00 2009-06-23T10:38:56+02:00

oai:lup-student-papers.lub.lu.se:1429536 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Lehon Hamarashid author Ass Prof Per Tunestål supervisor Department of Energy Sciences v1000205 department This master thesis has been conducted at the Division of Combustion Engines under the Department of Energy Sciences, Faculty of Engineering at the Lund University. The purpose of this master thesis project is to create a computer based model of a Natural Gas Engine in order to raise its potential for updating a Volvo bus as well as creating a study of the improvement efficiency of the Miller Cycle. In the last 100 years, there has been enormous progress in the internal combustion engine field. The emission of reactive Hydrocarbon from light duty vehicles is approximately. 70 percent lower in natural gas operation than with petrol operation. Emissions of greenhouse gases are 15-25 percent lower with in natural gas operation than from corresponding petrol vehicles. Environmental improvement by reducing emissions as well as alternative energy issues will become more and more important in the future. Diesel engines have a higher efficiency level compared to gasoline engines, but the problem is that their NOx and Soot emissions are higher than other types of engines. That’s one of the main reasons why Natural Gas engines became more and more important over the last few years. New gas buses that are run with vehicle gas emit approximately 50% less NOx than corresponding diesel buses, something that can to contribute substantially to creating better air environment in the big towns. Moreover, the emission is reduced of carcinogenic pollutants and particles. [1] The gas engine project at Lund University is exploring the extension of the performance, fuel efficiency and the stability of a spark ignition (SI) natural gas engine. The engine is a partly modified (modified from a single point to multi-port injection system), 6-cylinder turbocharged (9.4 liter) Volvo engine, which is equipped with EGR valves and an EGR cooler. The engine runs on a Stoichiometric mixture of air and fuel associated with the cost effective 3-way after treatment system. The work presented in this thesis has focused on studying, with simulation, an engine model for new gas buses that is run with natural gas and a study with Miller Cycle. This research has been conducted in a 1-D gas exchange simulation program called GT-Power with an engine model originating from VOLVO. As well, during the verification of this model, testing cases were modified to produce different tests. https://lup.lub.lu.se/student-papers/record/1429536/file/1429537.pdf application/pdf 1368994 no 2008 eng Miller Cycle GT-Power Modeling Natural Gas Engine Technology and Engineering 1429536 2009-06-23T10:28:30+02:00 2009-06-23T10:40:13+02:00 2009-06-23T10:40:13+02:00

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oai:lup-student-papers.lub.lu.se:8986417 2025-07-29T13:03:30Z AgricultureVeterinaryMedForestry Technology

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oai:lup-student-papers.lub.lu.se:2167870 2025-07-29T13:03:30Z HumanitiesTheology Technology

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oai:lup-student-papers.lub.lu.se:1333107 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Annika Sundström author Emma Södervall author Professor Magnus Larson supervisor Division of Water Resources Engineering v1000225 department Problempresentation: Vietnam drabbas av i genomsnitt 5-6 tyfoner varje år, och dessa kan orsaka stor förödelse och många dödsfall när de passerar in över land. När en tyfon passerar medför det högt vattenstånd, höga vågor, starka vindar och kraftiga regnfall. Om högt vattenstånd sammanfaller med höga vågor orsakar det översköljning samt erosion av strandvallar och sanddyner längs kustlinjen. Detta leder i sin tur till att saltvatten infiltrerar jordbruksmarken innanför, vilket förstör skördarna under många år framöver.<br /> <br /> Syfte: Huvudsyftet med den här studien är att bedöma den påverkan som tyfoner har på den vietnamesiska kusten med avseende på överspolning och erosion, samt uppskatta framtida effekter för befolkningen i kustområdena. Studien behandlar huvudsakligen två olika områden längs Vietnams kust: Hai Hau Beach och Ly Hoa Beach.<br /> <br /> Metod: Grundläggande data för tyfoner som drabbar den vietnamesiska kustlinjen analyseras med avseende på dess egenskaper, och information om kustlinjen sammanställs. Med denna information är det sedan möjligt att uppskatta effekterna av tyfoner på olika sträckor av kustlinjen med fokus på översvämning, översköljning samt erosion. Slutligen görs en uppskattning av riskerna som de studerade områdena och dess befolkning utsätts för vid de katastrofala händelser som kan inträffa på grund av tyfoner.<br /> <br /> Slutsatser: Översvämningar orsakade av översköljning beror till stor del på tidvattenståndet. Det är flod endast en gång per dag i Hai Hau, och vid vissa tider på året även i Ly Hoa, så sannolikheten för att den högsta tyfonberoende vattenståndsökning infaller samtidigt som högt tidvatten är liten. Hai Hau Beach har någorlunda gott skydd mot vågor på vissa bitar av kuststräckan. De senast byggda strandvallarna, som har en förstärkt yta, skyddar mot de flesta vågor. Dessa strandvallar är byggda med högre nivå på krönet och är mindre erosionsbenägna än strandvallar täckta med gräs. Om hela kusten på 25 km vid Hai Hau var skyddad med förstärkta strandvallar skulle hem och åkermark vara mindre exponerade för tyfoner. Situationen i dagsläget vid Ly Hoa är att byn är mycket utsatt och känslig för vågor. Det föreslagna åtgärdsprogrammet från UNDP kommer att minska riskerna för byn. Projektet var tänkt att bli klart under år 2002, men är fortfarande inte påbörjat. Detta betyder att människorna i Ly Hoa lever under ett ständigt hot att deras hem kan komma att förstöras av tyfoner. Hai Hau och Ly Hoa utgör två begränsade delar av den vietnamesiska kustlinjen, men tillsammans representerar de typiska förhållanden för en stor del av kusten. Tre fjärdedelar av kusten består av antingen sanddyner eller deltan, och använd beräkningsgång och metodik i den här studien kan appliceras på liknande delar av den vietnamesiska kustenlinjen.<br /> <br /> (Ett examensarbete utfört vid Avd f Teknisk Vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1333107/file/1333108.pdf application/pdf 4589039 no 2004 eng Environmental technology soil mechanics offshore technology hydraulic engineering typhoons Vietnam wave runup dune erosion wave overtopping storm erosion Hai Hau Beach Ly Hoa Beach tyfoner uppspolning översköljning erosion Technological sciences Civil engineering Teknik Väg- och vattenbyggnadsteknik pollution control Miljöteknik kontroll av utsläpp Technology and Engineering Earth and Environmental Sciences 1333107 2005-04-15T00:00:00+02:00 2009-10-18T18:26:56+02:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333112 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH1 Chris Nilsson author Hanna Dahlström author Erik Särner supervisor Water and Environmental Engineering v1000244 department Sammanfattning : Denna studie har utförts i överensstämmelse med The Swedish International Development Cooperation Agencys Minor Field Study-program och utgör två studenters examensarbete på civilingenjörsutbildningen i Ekosystemteknik på Lunds Tekniska Högskola.<br /> <br /> Studien bär titeln &quot;Treatment and Disposal Methods for Wastewater Sludge in the Area of Beijing, China&quot;. Ämnet är mycket brett och fokus är lagt på möjligheterna att använda slam som gödningsmedel i jordbruk. Studien inkluderar en fältstudie där nuvarande och framtida behandling och hantering av avloppsslam undersöks. Viktig lagstiftning för slamhantering samlas också in. En litteraturstudie inkluderas gällande allmän kunskap om slamsammansättning, behandlings- och hanteringsmetoder men också information om hur slam hanteras i Sverige, EU och USA samt deras lagstiftning angående användningen av slam som gödningsmedel i jordbruk. Detta möjliggör en jämförelse av kinesiska förhållanden med förhållandena i dessa regioner.<br /> <br /> Avloppsslam produceras när avloppsvatten från hushåll och industri behandlas på reningsverk. En del reningsverk behandlar även dagvatten. Slammet innehåller organiskt material och näringsämnen som har ett agronomiskt värde men också föroreningar i form av tungmetaller, organiska föroreningar och patogener. Råslammet som genererats från olika steg i reningsprocessen av avloppsvattnet är instabilt och innehåller en stor mängd vatten.<br /> <br /> Ytterligare behandling behövs för att reducera vatteninnehållet och det finns olika förtjocknings- och avvattningstekniker tillgängliga. För att stabilisera slammet kan rötning, kompostering eller termisk torkning användas för att nämna tre vanliga metoder. Detta är också viktigt för att reducera mängden patogener som kan utgöra en risk när slammet hanteras i efterkommande steg. Slammet kan hanteras på flera olika sätt men denna studie fokuserar på användningen av slam som gödningsmedel i jordbruk. Denna användningsmetod skapar ett kretslopp av näringsämnen som fosfor och kväve och detta är mycket viktigt i ett miljömedvetet och hållbart samhälle. Om näringsämnen återanvänds kan till exempel det jungfruliga uttaget av fosfor minskas vilket är viktigt eftersom detta är en ändlig resurs. Slam kostar också mindre i jämförelse med konstgödning. Det finns vissa potentiella negativa risker med användningen av slam som gödningsmedel så som spridningen av organiska föroreningar, tungmetaller och patogener. Dessa risker kan emellertid minimeras genom till exempel valet av lämplig gröda, spridningsmetod och reglering av tiden mellan spridning av gödning och skörd av grödan.<br /> <br /> Ungefär 40% av befolkningen i Beijing är ansluten till avloppsnätet och det finns nio olika reningsverk i området. Alla reningsverken använder en kombination av mekanisk och biologisk rening av avloppsvattnet. Endast en liten del av avloppsvattnet behandlas med kemikalier och återanvänds exempelvis till bevattning. Ungefär 1 000 ton avvattnat slam med en vattenhalt på mindre än 80% produceras dagligen i detta område. Slammet förtjockas och avvattnas, mestadels genom en kombination av en förtjockningstank och ett så kallad filterbälte men också genom centrifugering som används på två reningsverk. På det största reningsverket, Gaobeidian Sewage Treatment Plant, rötas en del av slammet och energin från den producerade biogasen används på reningsverket. Idag komposteras ungefär 40% av slammet i Beijing på Daxing Sludge Disposal Plant. Hälften av det resterande slammet deponeras på olika deponier och resterande omhändertas av entreprenörer, oftast deponeras även detta slam. På Daxing komposteras slammet i långsträckta rader under 25 dagar. Slammet blandas inte med ett annat material men högarna harvas och vänds regelbundet och vattenhalten reduceras till ungefär 20%. Efter kompostering pelleteras slammet och används framför allt som gödningsmedel i jordbruk eller som jordförbättringsmedel på sandiga jordar för att öka andelen organiskt material.<br /> <br /> Kina har lagstiftning beträffande användning av slam som gödningsmedel i jordbruk. Det finns kvalitetskrav gällande nio metaller och fem organiska föreningar. Slammets kvalitet med avseende på metaller, organiska föroreningar, näringsämnen och patogener mäts fyra gånger per år vid de olika stegen i behandlingsprocessen på reningsverken. Vatteninnehåll, pH och den organiska halten mäts dagligen. När slamkvaliteten från tre olika reningsverk i Beijing analyseras framkommer det att slammet nästan uppfyller kvalitetskraven. Koncentrationen av kvicksilver i slammet är dock ofta för hög men undersökningar pågår för att kartlägga källorna. Det är viktigt att övervaka kvaliteten och utreda källorna till föroreningar och att implementera kontrollstrategier. Det skulle vara till stor hjälp om kvaliteten mättes oftare så att trender kan utvärderas men detta gäller för många länder i världen. Kina har redan utsläppskrav på industrin och en annan ansats till att förbättra kvaliteten är att större industrier planeras att flyttas utanför staden.<br /> <br /> 100% av befolkningen i Beijing exklusive förorterna planeras att vara anslutna till avloppssystemet till år 2010. Det beräknas att ungefär 2 500 ton avvattnat slam med en vattenhalt på 80% kommer att produceras dagligen. Kompostering kommer att behandla ungefär 60% av slammet, 30% kommer att behandlas med termisk torkning och 10% kommer att förbrännas eller att deponeras. Termisk torkning kommer att kräva mindre yta än kompostering och detta är en viktig faktor i en stor och expanderande stad som Beijing. Efter kompostering eller termisk torkning kan slammet användas som gödningsmedel eller jordförbättringsmedel. Sålunda är ambitionen att återanvända en stor andel av näringsämnena i slammet. Det undersöks också om det är möjligt att använda en del av slammet som byggnadsmaterial. Den allmänna åsikten i Kina är att det är mycket viktigt att återanvända näringsämnena i slammet. En fördel med att kompostera eller termiskt torka slammet är att slutprodukten ser mer &quot;ren och behandlad&quot; ut och detta ökar acceptansen för slam som gödningsmedel. När slam torkas och pelleteras ges fördelen att det är lättare att hantera och transportera det. En annan fördel är att pelleterat slam kan spridas med samma utrustning som konstgödning. Beijing ligger nära Gula Planet som är ett vidsträckt jordbruksområde. Det har beskrivits som Kinas brödkorg och det finns ett behov av gödningsmedel för att tillräckliga mängder mat skall kunna produceras. pH är omkring 7.5-8.5 och detta gör marken lämplig för slamgödsling eftersom tungmetaller är mindre mobila vid högre pH.<br /> <br /> (Ett examensarbete &quot;Minor Field Study&quot; utfört vid Avd f Vattenförsörjnings- och Avloppsteknik (VA-teknik) https://lup.lub.lu.se/student-papers/record/1333112/file/1333113.pdf application/pdf 1517255 no 2005 eng wastewater sludge treatment disposal fertiliser nutrients Technological sciences Teknik Civil engineering, hydraulic engineering, offshore technology, soil mechanics Väg- och vattenbyggnadsteknik Environmental technology, pollution control Miljöteknik, kontroll av utsläpp Technology and Engineering Earth and Environmental Sciences 1333112 2005-04-15T00:00:00+02:00 2014-09-04T08:30:58+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333117 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Martin Häglund author Pär Svensson author Professor Magnus Larson supervisor Hans Hanson supervisor Division of Water Resources Engineering v1000225 department Many coastal areas in Vietnam suffer from erosion. One of the worst affected areas is the Hai Hau beach, located in the Red River delta in northern Vietnam. Over the last hundred years, vast parts of the beach have eroded at an average rate of approximately 25 m per year.<br /> <br /> Important agricultural land has vanished into the sea and families have been forced to abandon their houses. The cause of the erosion is not explained but suggested reasons are for example dam construction, deforestation, weak dikes and unfavourable hydrodynamic conditions.<br /> <br /> The wave climate, and thus the sediment transport, in northern Vietnam is highly dependent on the two main wind directions from the northeast and the south, because of the winter and summer monsoon, respectively. Vietnam is also subject to sporadic typhoons that cause great damage when they strike the coast, especially in combination with storm surges. Based on a 20-year long wind record from 1976 to 1995, obtained from two islands outside the coast of northern Vietnam, the longshore transport rate over these years was determined by a onedimensional numerical wave model. The model consists of three independent parts: offshore waves, nearshore waves and longshore sediment transport. This model indicates a southward-directed transport along the Hai Hau beach. In addition, sea maps and satellite photos from the 20th century were compared in order to find out the historic shoreline development generally.<br /> <br /> The main protection method that is generally used in Vietnam, as well as in Hai Hau district, is sea dikes. These dikes consist of an earth core covered by a revetment layer of cobbles.<br /> <br /> Unfortunately, these dikes are not strong enough to withstand the impact of harsh waves for any longer periods. Historically, a line of sea dikes has been destroyed at least once every decade. A couple of hundred meters behind the front sea dike typically lies another dike, ready to meet the waves when the first one breaches. Consequently, this defence arrangement is often recognized as a double dike system, but also as a retreat strategy since the erosion problem is not solved, just slowed down. The major cause of erosion is likely not due to human activities (such as dam buildings or river cut-offs), instead, because of the natural properties of Hai Hau coastal area, seasonally bounded longshore currents in combination with weak sea dikes favour erosion.<br /> <br /> (Ett examensarbete utfört vid Avd f Teknisk Vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1333117/file/1333118.pdf application/pdf 6179364 no 2002 eng pollution control Environmental technology Väg- och vattenbyggnadsteknik soil mechanics Red River Delta Vietnam coastal erosion sediment transport wave prediction Technological sciences Teknik Civil engineering offshore technology hydraulic engineering Miljöteknik kontroll av utsläpp Technology and Engineering Earth and Environmental Sciences 1333117 2005-04-15T00:00:00+02:00 2009-10-18T18:27:30+02:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333148 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Stefan Karlsson author Michael Wong author Erik Serrano supervisor Structural Mechanics v1000228 department This thesis engages the topic of test methods for wood adhesives. Two test methods were evaluated, EN 302-1, a European standard, and ASTM D905, an American standard. The total amount of specimens manufactured and tested was more than 500. The adhesive bonds were tested in shear with an increasing load on the specimen until failure.<br /> <br /> The adhesives used were epoxy-resin, phenol-resorcinol-formaldehyde and a 2-K polyurethane. The test programme included five different types of intentional errors per method, in order to investigate the sensitivity of the test methods. The different types of errors were double amount of adhesives applied, two types of errors in cutting of the specimens and two types of eccentric loading during testing. The maximum shear stress of the adhesive was used in determining whether the test methods are stable or not. The main conclusion of this thesis is that both test methods are unstable for the tested errors.<br /> <br /> (Ett examensarbete utfört vid Avd f Byggnadsmekanik) https://lup.lub.lu.se/student-papers/record/1333148/file/1333149.pdf application/pdf 2694709 no 2004 swe trälimfogar provningsmetoder wood adhesives test methods Building construction Byggnadsteknik Technology of other products Produktteknik (allmän) Technology and Engineering 1333148 2005-04-13T00:00:00+02:00 2006-10-11T00:00:00+02:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333153 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Fredrik Olsson author Mark Pearson author n/a n/a supervisor Division of Water Resources Engineering v1000225 department Problempresentation: Elpriset ändras varje dag på den nordiska elbörsen, Nord Pool. Dessa förändringar är nära relaterade med den mängd vatten som rinner in till vattenkraftverken, kallad tillrinningsenergi, eftersom vattenkraft är den sorts elektricitet som i första hand används. Genom att i förväg veta den totala veckotillrinningsenergin kan de som handlar med elektricitet förutspå mindre förändringar i elpriset.<br /> <br /> Syfte: Det främsta syftet med det här examensarbetet är att ta fram en model för Sverige och Norge baserad antingen på Neurala Nätverk eller Multipel Regression som kan simulera den totala veckotillrinningsenergin från avrinningsdata. Modellen ska använda sig av så få stationer som möjligt samtidigt som simuleringarna har bra kvalitet. Den valda modellen ska sedan integreras i en användarvänlig mjukvara för att kunna användas operativt för Sverige.<br /> <br /> Slutsatser: Mjukvaran, kallad TWh-Simulator, utför simuleringar av sådan kvalitet att dess resultat är fullt tillförlitliga. Denna slutsats bygger på de goda uppnådda resultat när modellen validerades på tre olika tidsperioder. För att modellen ska upprätthålla dess goda resultat måste den uppdateras vid något tillfälle.<br /> <br /> (Ett examensarbete utfört vid Avd f Teknisk vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1333153/file/1333154.pdf application/pdf 1074390 no 2005 eng Väg- och vattenbyggnadsteknik soil mechanics offshore technology hydraulic engineering vattenkraft Nord Pool tillrinningsenergi Multipel Regression avrinning Neurala Nätverk hydropower inflow energy runoff Multiple Regression Neural Network Technological sciences Civil engineering Teknik Environmental technology pollution control Miljöteknik kontroll av utsläpp Technology and Engineering Earth and Environmental Sciences 1333153 2005-04-13T00:00:00+02:00 2009-10-18T18:28:21+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326239 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Carl-Johan Dahlerus author Daniel Egermayer author Hans Hanson supervisor Division of Water Resources Engineering v1000225 department Problemfomulering: Ystad, som är beläget längs Skånes sydkust, har länge varit utsatt för kusterosion. När det blåser över Östersjön genereras vågor som orsakar uppspolning och direkt erosion av klitterna på stranden. Ett av de mest utsatta områdena är Ystads Sandskog, beläget öster om Ystads centrum. Här karakteriseras strandprofilen av en relativt kort strand med klitter som skyddar den låglänta bakomliggande terrängen. Vid en eventuell framtida klimatförändring med högre vågor och vattenstånd riskerar den redan utsatta kuststräckan att drabbas ännu hårdare. Detta innebär i sin tur att populära turist- och rekreationsområden riskerar att delvis eller helt försvinna.<br /> <br /> Syfte: Syftet med denna studie är att analysera vågor och vattenstånd, utifrån befintlig klimatdata, för att kunna dra slutsatser om hur stranden, speciellt klitterna, i Ystads Sandskog har påverkats av kustklimatet fram till idag. Tillsammans med befintliga prognoser kommer även möjliga scenarier för framtiden att ställas upp för området. Vidare kommer en kartläggning göras över kritiska kustavsnitt med tanke på uppspolning, överspolning och klittererosion. Metod: I det initiella skedet av denna studie samlades vind- och vattenståndsdata in. Utifrån dessa data gjordes analyser av hur klimatet ser ut i södra Östersjön, för att sedan beräkna vågor, uppspolning och klittererosion i Ystad. Klimatdatan bearbetades för framtida situationer, dels med olika statistiska fördelningar som underlag och dels genom simuleringar med hjälp av existerande prognoser som modellerats av SWECLIM (Swedish Regional Climate Modelling Programme). Avslutningsvis gjordes en profiliv inmätning i det studerade området för att kunna identifiera kritiska sektioner längs kusten samt för att kunna uppskatta vilken inverkan havets krafter kan komma att ha på stranden i framtiden.<br /> <br /> Slutsatser: De analyser som gjorts visar att uppspolning och erosion har varit påtaglig under de senaste decennierna. De kustavsnitt som är mest känsliga karakteriseras av ett strandplan med liten lutning, en lågt belägen klitterfot och en brant klittervägg. Dessa partier återfinns systematiskt i mitten av de kustavsnitt, som ligger mellan två hövder i det studerade området. Vid ett eventuellt ökat vattenstånd beräknades att både strandplan och klittervolymer kommer att minska drastiskt. Utifrån befintliga prognoser beräknades även den direkta klittererosionen öka med upp till 75% fram till år 2100. Detta medför att det promenadstråk som löper längs klittertoppen idag, inom ett 100-års perspektiv bitvis kan försvinna. Vidare visar studien att en uppspolninghöjd som idag har en återkomsttid på 100 år, i framtiden kan komma att inträffa upp till 13 gånger oftare. Ystad kommun har upprättat flera erosionsskydd på kritiska områden. Det finns dock sektioner där erosionen befaras öka men inga åtgärder är vidtagna. Här anses sandutfyllnad vara en effektiv åtgärd för att bibehålla strand och klitter. Metoden är kostsam och underhållskrävande men estetiskt tillfredställande för den attraktiva och ekonomiskt viktiga stranden.<br /> <br /> (examensarbetet är utfört vid Avd för Teknisk Vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1326239/file/1326240.pdf application/pdf 3732818 no 2005 swe Civil engineering teknisk geologi Hydrogeologi vind vattenstånd Ystad vågor erosion uppspolning klitter framtida scenarier Sedimentology Sedimentologi geographical and geological engineering Hydrogeology teknisk geografi hydraulic engineering offshore technology soil mechanics Väg- och vattenbyggnadsteknik Earth and Environmental Sciences Technology and Engineering 1326239 2006-02-02T00:00:00+01:00 2009-10-18T18:24:40+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326248 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH2 Mona Sjödahl author Zahra Kalantari author Professor Magnus Larson supervisor Division of Water Resources Engineering v1000225 department Many of the coastal areas in Vietnam have elevations below one meter making them vulnerable to salt water intrusion, flooding, and erosion. The Red River Delta (RRD) located in northern Vietnam has suffered severe erosion along certain stretches of coastline during at least the last hundred years. At Hai Hau Beach in the RRD, a land area of 16 km in length and 2.5 km in width has been lost during the last century due to erosion. Several different hypotheses have been put forwarded concerning the main factors causing erosion at this beach, including the closing off of a sediment-transporting river branch, the construction of a large dam in the river system (Hoa Binh Dam), and sheltering of the beach by the Ba Lat river mouth causing gradients in the longshore sediment transport. Recent studies indicate that the third hypothesis is the most likely one, but detailed knowledge about the effect of the regional topography on waves and currents is needed.<br /> <br /> The main objective of this study was to investigate nearshore hydrodynamics at Hai Hau Beach in order to gain better understanding of wave transformation, nearshore circulation, and sediment transport in the area. The characteristics of the regional coastline shape together with the complex bottom topography were analyzed with focus on the impact on waves and currents along Hai Hau Beach. Implications for the longshore sediment transport and beach evolution were also considered.<br /> <br /> Data from two major field experiments at Hai Hau Beach, one during the winter monsoon and one during the summer monsoon (January and August 2005, respectively), were analyzed and used for numerical wave modeling. Both field campaigns involved the same general layout and procedure and were carried out at the same locations with similar instruments. The instruments were deployed at seven stations and were utilized to record waves, currents, and suspended sediment concentration. Four of the stations were located in a depth of 10-20 m, whereas the other three stations were closer to the shoreline at depths of about 3 m. Analysis of simultaneous measurement of local wave properties and sediment concentration indicated a distinct correlation for situations with strong waves, but little correlation when the waves were low and most of the sediment originated from the river discharge.<br /> <br /> The numerical spectral wave model, STWAVE, was used to simulate regional wave transformation and the propagation of waves into the Hai Hau Beach area. Input data for the simulations to validate the model consisted of measured data from the most offshore measurement station. Model results were compared with recorded waves at the stations closer to the beach, and satisfactory agreement was obtained between calculated and measured significant wave height and wave period. Sensitivity analysis regarding the influence of bottom topography and regional coastline shape on the wave transformation was performed using a larger grid that covered the Ba Lat river mouth. These simulations displayed distinct gradients in wave height along Hai Hau Beach for waves approaching from a sector north to east that may be responsible for the severe erosion observed.<br /> <br /> (examensarbetet är utfört vid Avd för Teknisk Vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1326248/file/1326249.pdf application/pdf 3434527 no 2005 eng teknisk geografi Red River Delta coastal erosion Vietnam wave transformation sediment transport soil mechanics hydraulic engineering Civil engineering STWAVE Hydrogeology geographical and geological engineering teknisk geologi Hydrogeologi offshore technology Väg- och vattenbyggnadsteknik Earth and Environmental Sciences Technology and Engineering 1326248 2006-02-02T00:00:00+01:00 2009-10-18T18:22:36+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326265 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Johan Hovold author Jacek Malec supervisor Computer Science 011014002 department Abstract: Se dokumentet. https://lup.lub.lu.se/student-papers/record/1326265/file/1326266.pdf application/pdf 393270 no 2005 eng numerical analysis Computer science active consequence relation inconsistent knowledge bases perception functions semantics for active logic modelling the reasoning of real-world agents systems control Datalogi numerisk analys system kontroll Technology and Engineering 1326265 2006-02-17T00:00:00+01:00 2009-04-20T11:15:04+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326278 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Jonas Boijertz author Göran Fries supervisor Computer Science 011014002 department Most often when developing a new system there is a need get a functioning testtool up and running. Including time, cost and resources the solution isn?t always obvious, developing your own or buy one ?of the shelf?. The purpose of this thesis is to study how a general testtool for executing functional tests should be designed to be reusable, be based on recognized knowledge and be able to fast and simple be customized for different types of systems. Key functions from the litterature is presented and used in the design of a testtool prototype. The prototype is based on Java design patterns and consists of two functional modules, an interface module and a GUI module. The testtool is tested on a live system. The test object in this thesis is a Java based system with only API&#39;s and interfaces to communicate with the surrounding world. The method for evaluation was ?usability testing?. The prototype shown to be well fitted for the functional tests performed during these tests. https://lup.lub.lu.se/student-papers/record/1326278/file/1326279.pdf application/pdf 505604 no 2006 swe Computer science usability testing functional test test tool numerical analysis systems control Datalogi numerisk analys system kontroll Technology and Engineering 1326278 2006-02-17T00:00:00+01:00 2009-04-20T11:15:21+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326286 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Khalil Chemali author Thore Husfeldt supervisor Computer Science 011014002 department Chinese Remainder Theorem is used to solving problems in computing, coding and cryptography. In computing we can compute with shorter numbers instead of large numbers and this will make the computing-process faster and easier. In coding it can be used for error-searching and error-regulating.<br /> <br /> Cryptography means that we can send a coded message and that no one will be able to read it without the decode-key which is based on prim-numbers. I am writing about the history of mathematics and how the number- and decimal number-system is used in Babylon, Egypt, Greece and in China. Abacus was a very important aid to calculate advanced mathematical problems. Someone who knows how to use the Abacus can calculate faster than the calculator.<br /> <br /> Writing in cipher code was a very interesting subject a thousand years ago and it is still used even in modern time. To this day there are still some secrets, written in cipher code, that no one has been able to decode yet.<br /> <br /> A message which is coded with a public key, which is based on Chinese Remainder Theorem, is virtually impossible to solve without the private key which is based on prime numbers. If the First World War was the chemists war (chlorine gas used) and if the Second World War was the physicist war (atomic bombs used), that would suggest that the Third World War will be the mathematicians&#39;s war, because they master the new weapon which is called information.<br /> <br /> It is the mathematicians who have developed the codes that are currently used to protect military secrets. It is also the mathematicians who are most concerned about breaking the codes. https://lup.lub.lu.se/student-papers/record/1326286/file/1326287.pdf application/pdf 18247525 no 2005 swe Computer science cryptography chinese remainder theorem coding numerical analysis systems control Datalogi numerisk analys system kontroll Technology and Engineering 1326286 2006-02-17T00:00:00+01:00 2009-04-20T11:15:33+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326298 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Karl Stengård author Eric Astor supervisor Computer Science 011014002 department Stratego is a boardgame not very different from chess, that contains hidden information. Because of this, existing programs play at beginner level. The purpose of this thesis is to adjust a minimax algorithm so that it passes the demands of Stratego, and then build a Stratego agent around it. Tests with existing minimax algorithms leads to the development p-e-minimax. This algorithm uses two different values in its nodes to simulate the different information available to the agent and its opponent. The name of the agent constructed around p-e-minimax is Perspecto. This agent uses a hybrid architecture were a simple strategic search is used in paralell with p-e-minimax. The agent also uses a psychlolgical model to handle the game of the hidden pieces better.<br /> <br /> Perspecto defeats a commercial program but loses to a human player after an even game. This and the following tests shows that a more advanced strategic search and a more unpredictable psychological model is needed for Perspecto to have a chance aganist a skilled human player. https://lup.lub.lu.se/student-papers/record/1326298/file/1326299.pdf application/pdf 744328 no 2006 swe numerical analysis Computer science hybrid architeture hidden information minimax algorithm minimax-based agent systems control Datalogi numerisk analys system kontroll Technology and Engineering 1326298 2006-02-17T00:00:00+01:00 2009-04-20T11:17:40+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326306 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Kim Kemilä author Jacek Malec supervisor Computer Science 011014002 department This thesis provides a useful open source system for generating motion sequences for the AIBO ERS-7 robot. For this purpose a virtual ERS-7 robot and a corresponding virtual environment have been implemented. All motions are simulated by means of a physics engine, and several useful features have been implemented, in order to allow development of motion sequences as well as exporting of them to the real ERS-7 robot. Finally, good correspondence between the generated motion sequences and the exported motion sequences is achieved. This work, as a motion sequence generator for the ERS-7 robot, provides a useful system for educational and research purposes. https://lup.lub.lu.se/student-papers/record/1326306/file/1326307.pdf application/pdf 438479 no 2006 eng Computer science physics engine virtual environment motion sequence generator exported motion sequences numerical analysis systems control Datalogi numerisk analys system kontroll Technology and Engineering 1326306 2006-02-17T00:00:00+01:00 2009-04-20T11:17:49+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326454 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Emir Basic author Andrzej Lingas supervisor Computer Science 011014002 department Abstract: Se dokumentet. https://lup.lub.lu.se/student-papers/record/1326454/file/1326455.pdf application/pdf 359868 no 2005 eng numerical analysis Computer science Alignment Divide-and-Conquer Dynamic Programming systems control Datalogi numerisk analys system kontroll Technology and Engineering 1326454 2006-02-10T00:00:00+01:00 2009-04-20T11:17:57+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326639 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Rafael Vargas Munoz author Carl Wilhelmsson supervisor Department of Energy Sciences v1000205 department The HCCI engine has shown great qualities such as high efficiency combined with low emissions. However, many issues have not totally been solved yet. One way to control the combustion timing, one of the commented issues, is dual fuel utilizing the difference in ignition temperature between different fuels.<br /> <br /> So, from this point on it is not difficult to think about developing a big mapping of one HCCI engine, controlling this variable to obtain the best performance of this kind of engine. After doing that, the most interesting ranges of operation will<br /> <br /> be known as well as the possibility of studying them more in depth.<br /> <br /> The test engine is a modified six cylinder Scania DSC12 turbo charged diesel engine. All experiments are conducted with natural gas and n-heptane; the natural gas with nearly 120 in the octane scale (difficult ignition) and the n-heptane, zero in the octane scale (really easy ignition). This is one of the keys to control the combustion. In order to study the performance of the dual fuel engine, the operating parameters as engine speed, inlet pressure, inlet temperature, load and, of course, the<br /> <br /> combustion timing, are varied and analyzed reading emissions efficiencies, fuel consumption, variability, losses ? in all their ranges. Afterwards in the points which<br /> <br /> exceeded the limits regarding the in cylinder pressure rise rate and NOx emissions the engine has been run with the help of the turbo charger varying the inlet air pressure or, in other words, the inlet area of its turbine. In this way the NOx emissions do not reach an undesirable rate and the engine is always working under 15 bars of pressure rise per crank angle degree.<br /> <br /> The test results show a higher efficiency close to 50 % and low emissions in the entire mapping using the turbo charger in the suitable condition. On the other hand, more CO and HC are produced. They can however be reduced with an oxidizing catalyst. https://lup.lub.lu.se/student-papers/record/1326639/file/1326640.pdf application/pdf 13122722 no 2006 eng Combustion timing ignition temperature emission efficiency fuel comsumption Technological sciences Teknik Technology and Engineering 1326639 2006-07-14T00:00:00+02:00 2006-07-18T00:00:00+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1326679 2025-07-29T13:03:30Z Technology

studentPublicationsH3 Anders Lilja author Greger Linde author Professor Kenneth M Persson supervisor Oswaldo Ramos supervisor Maria E. García supervisor Division of Water Resources Engineering v1000225 department The basin of the Poopó Lake, situated on the Bolivian high plateau, is severely contaminated by the mineral extraction and processing activities within the area. Many rivers in the area contain high concentrations of arsenic, lead and cadmium both in the water and the sediment phase. Moreover, huge amounts of mineral waste are situated in the area. In this study the environmental conditions of three specific rivers, with focus on heavy metals, were investigated. Water and sediment samples were taken along the rivers Huanuni, Poopó and Marquez during October and December 2005 with the ambition to quantify the concentrations of the metals and determine how much the mining activities account for, how the concentrations develops along the river and how the metals dissolved in the river and bound in the sediments interact. During the second sampling trip the rain period had not yet set in; hence the results are representative for the dry period.<br /> <br /> All rivers were found to contain high levels of dissolved arsenic and lead, exceeding the WHO-guideline values for drinking water. The lead concentrations were similar in all rivers and varied between 0.15 and 0.49 mg/l. In the Poopó River thermal waters causes very high concentrations of arsenic which are higher than previously reported values; as high levels as 12 mg/l were observed. The processing plant pollutes the river with cadmium and levels of 0.04 mg/l were encountered. It may also be responsible for the higher pH-values encountered in the downstream parts. Adsorption of metals on suspended particles and deposition of leftovers from the mining activities are thought to be responsible for significantly higher levels of arsenic, cadmium and zinc within the sediments at the most downstream parts of the river.<br /> <br /> The Huanuni River is totally deteriorated because of the mining activities. The mining centre is the major pollution source causing elevated levels of arsenic, cadmium, iron and sulphate and lowers the pH-value to about pH 3. However, the small scale mining along the river and leakage from the waste piles and the river&#39;s sediment also contributes with large amounts of arsenic and acidity. Arsenic, cadmium and iron levels of 10, 1.4 and 500 mg/l were observed and mass flows to the Poopó Lake as high as 300, 20 and 3000 kg/day were calculated. The mining activities also increase the concentrations of arsenic, cadmium and zinc in the sediments greatly. Deposition of mining material seems to be controlling the zinc and cadmium concentrations, whereas adsorption on suspended particles followed by sedimentation seems to control arsenic.<br /> <br /> The unpolluted Marquez River contains low levels of arsenic, cadmium, lead and zinc in the sediments, but the concentrations of arsenic and lead in solution were high.<br /> <br /> Further studies, measuring suspended particles and organic content, are recommended for the understanding of the transport mechanisms and the interactions between metals in sediment and water phase. For the understanding of seasonal variations studies should be conducted during the rain period as well as during the dry period. https://lup.lub.lu.se/student-papers/record/1326679/file/1326680.pdf application/pdf 1174465 no 2006 eng soil mechanics Superficial waters Sediments Heavy metals ARD Altiplano hydraulic engineering Civil engineering offshore technology Väg- och vattenbyggnadsteknik Technology and Engineering 1326679 2006-07-08T00:00:00+02:00 2009-10-18T18:25:11+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1325294 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Annika Hansson author Lennart Thörnqvist supervisor Department of Energy Sciences v1000205 department På Skånemejeriers ysteri i Kristianstad har en energiinventering utförts. Detta för att lokalisera de komponenter på mejeriet som är energianvändare och få en bättre insyn i energianvändningen på mejeriet. Föreliggande inventering har sedan använts för att analysera energianvändningen och föreslå energieffektiviseringsåtgärder. Informationen i uppsatsen är införskaffad genom löpande intervjuer med personalen på Skånemejerier och deras samarbetspartners, okulärbesiktningar samt genom ett studiebesök på Arla Foods i Kalmar.<br /> <br /> Inventeringen är indelad i två områden, nämligen produktions- och stödprocesserna. Produktionsprocesserna innefattar samtliga energianvändare som direkt berör produktionen av ost medan stödprocesserna innefattar de energianvändare som berör produktionen av ost indirekt. https://lup.lub.lu.se/student-papers/record/1325294/file/1325295.pdf application/pdf 1834068 no 2007 swe energiinventering energieffektiviseringsåtgärder ysteri produktionsprocesser stödprocesser effektivisering Technological sciences Teknik Technology and Engineering 1325294 2007-03-09T00:00:00+01:00 2007-03-09T00:00:00+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1325350 2025-07-29T13:03:30Z HumanitiesTheology Technology

studentPublicationsH1 Lena Bystedt Pobelianskaia author Johan Frid supervisor Anders Sjöstrom supervisor Torbjörn. LAger supervisor General Linguistics v1000092 department This thesis presents a system which has been implemented to satisfy a need in the<br /> <br /> research on how speech planning interacts with syntactic and prosodic structure in<br /> <br /> spontaneous speech. The long-term purpose of the research is to provide models for<br /> <br /> automatic parsing of spontaneous speech and for psycholinguistical modelling of speech<br /> <br /> production. Identification of inhalation pauses is an important step in the development<br /> <br /> of automatic methods for spontaneous speech parsing.<br /> <br /> Identification of inhalation pauses is considered to be a keyword-spotting speech<br /> <br /> recognition problem. Hybrid HMM(Hidden Markov Models)/ANN(Artificial Neural<br /> <br /> Networks) approach is applied to this problem. Method gets 90,8% in Recall, 66,4% in<br /> <br /> Precision and 76,7% in F-score. Use of a threshold value for duration increases the Fscore<br /> <br /> to 82,5%, therefore duration is considered to be relevant in performance<br /> <br /> optimization. Other proposed optimization parameters are better acoustic modelling,<br /> <br /> identification of the units causing false identifications prior to inhalation pauses<br /> <br /> identification and production of a more appropriate spontaneous speech corpus. https://lup.lub.lu.se/student-papers/record/1325350/file/1325351.pdf application/pdf 733954 no 2007 swe inandningspauser andning nyckelordsidentifiering 'HMM/ANN-hybridsystem' Matlab taligenkänning prosodi talproduktion akustik fonetik Linguistics Allmän språkvetenskap/Lingvistik Phonetics, phonology Fonetik, fonologi Technological sciences Teknik Languages and Literatures Technology and Engineering 1325350 2007-11-12T00:00:00+01:00 2009-02-04T00:00:00+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1325364 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Zara Isacsson author Professor Kenneth M Persson supervisor Division of Water Resources Engineering v1000225 department Deponering är en metod som sedan länge använts för att behandla avfall. Metoden är dock kopplad till en rad miljöpåverkande faktorer, varav produktion av lakvatten är en. I lakvattnet finns bland annat lösta näringsämnen och metaller och dessa kan ge negativ påverkan på ekosystem om de sprids i miljön.<br /> <br /> Det här examensarbetet syftar till att besvara frågan om metaller i lakvatten kan retarderas genom att lakvattnet från en specialcell infiltreras i en biocell. För att besvara frågeställningen har mätvärden för ett antal kemiska parametrar analyserats på en deponeringsanläggning som ligger i Malmö och bedrivs av SYSAV.<br /> <br /> Arbetet avser även svara på frågan hur hårt biocellen kan belastas i fråga om hydraulik. Därför simuleras de förväntade uppehållstiderna av vatten i biocellen vid olika infiltrations-hastighet och porositet.<br /> <br /> För att ge resultaten tyngd har en litteraturstudie avseende deponering, hydrologi och hydraulik, lakvatten och metallers mobilitet i mark och vatten gjorts.<br /> <br /> Resultatet från litteraturstudien visar bland annat att lakvatten produceras genom att nederbörd perkolerar genom avfallet. Lakvattnet för med sig metaller och andra kemiska föreningar som funnits bundna i avfallet och om koncentrationen av dessa ämnen blir för höga kan det innebära en risk då lakvattnet pumpas vidare till reningsverk eller recipient. Just metaller är viktiga att studera eftersom de är grundämnen och i och med det inte bryts ner. Metallers mobilitet i deponier bestäms i hög grad av faktorer som pH, redoxpotential, halten löst organiskt kol och tillgången på sulfid.<br /> <br /> Vid simulering av uppehållstiden för vatten i biocellen framkom att uppehållstiden följer ett linjärt samband med porositeten där en ökning i porositet med 1 % svarar mot en ökning i uppehållstid på cirka en månad. Infiltrationshastighetens påverkan på uppehållstiden visar sig följa ett samband som innebär en dramatisk minskning i uppehållstid vid låga infiltrationshastigheter men en mindre skillnad då infiltrationshastigheten ökar.<br /> <br /> Resultatet från analyserna av viktiga parametrar för metallers mobilitet visar att miljön i biocellen är mer gynnsam för fastläggning av de flesta metaller än miljön i specialcellen. Arsenik är den metall som mest skiljer sig från de andra och därför rekommenderas att denna metall följs upp kontinuerligt, tillsammans med viktiga parametrar såsom pH, redoxpotential och löst organiskt kol för att snabbt kunna detektera förändringar.<br /> <br /> Sammantaget visar resultatet att infiltrationen är en effektiv metod för att förhindra spridning av metaller i omgivande miljö. Metoden att infiltrera lakvatten är relativt enkel och kan utvecklas på anläggningen förutsatt att den hydrauliska belastningen beaktas. Detta för att minimera risken för ursköljning. https://lup.lub.lu.se/student-papers/record/1325364/file/1325365.pdf application/pdf 1681293 no 2007 swe soil mechanics offshore technology metaller Spillepeng infiltration hydraulisk uppehållstid recirkulering Environmental studies Miljöstudier hydraulic engineering Civil engineering lakvatten Väg- och vattenbyggnadsteknik Earth and Environmental Sciences Technology and Engineering 1325364 2007-11-21T00:00:00+01:00 2009-10-18T18:23:36+02:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1325506 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Martin Larsson author Sonja Eliasson author Ulrik Ilstedt supervisor Magnus Persson supervisor Division of Water Resources Engineering v1000225 department The aim of this study was to examine the infiltration rate of water and some parameters affecting it. Especially the land usage, the abundance of roots and macropores were investigated. A field study was carried out on western Java in Indonesia, on the slope of Mount Salak.<br /> <br /> The study compared four different land uses; i.e. forest, shrub areas, tree plantation and cropland since there was a high occurrence of these land uses in the area and they seemed suitable for comparison. The infiltration rate was measured with a double ring infiltrometer in 39 sampling points with at least eight locations at each land use. At 16 of these sites a soil pit was also dug, four at each land use. Root samples and soil samples were taken at six depths down to 150 cm. At the locations with soil pits, experiments with blue dye tracer were also conducted and the traces of the blue dye in the soil were photographed. Fine roots were examined both for length and weight of the sample. The soil samples were analysed at a laboratory for initial water content, bulk density, total porosity, pF-values, texture and carbon content. The differences between the four land uses were examined. A comparison in saturated infiltration rate was also conducted between tree based land uses and land uses without trees. The correlations between saturated infiltration rate and parameters such as root weight, root length and amount of macropores were investigated. The photographs of the blue dye were qualitatively evaluated and discussed.<br /> <br /> The infiltration rate showed differences when comparing shrub with forest and cropland, with shrub areas significantly lower than the other two. Plantation areas had the highest mean saturated infiltration rate 1260 mm/h. The lowest mean saturated infiltration rate was found in shrub areas where it was 580 mm/h. The comparison tree based land uses with land uses without trees showed a significant difference where the tree based land use had a higher saturated infiltration rate. Generally plantation had the highest root weights and cropland had the lowest, where as for root length cropland had generally quite high values and forest the lowest. For correlations with saturated infiltration rate, the root weight had the best significant R-value (0.66). Macropores showed a slight correlation with saturated infiltration rate. The examination of the blue dye tracer showed that the flow of infiltrating water is clearly preferential but no difference can be seen between the different land uses. There was no clear connection between the depth or spreading of the blue colour and the saturated infiltration rate.<br /> <br /> The results of this study showed that saturated infiltration rate is affected by the land usage, especially whether it is tree based land use or land use without trees. The reasons for the differences are not completely clear. There is a connection to the fine root weight and possibly to the amount of macropores. The infiltrating water was clearly preferential as it was following root paths and macropores. These results together show the importance of keeping land covered with vegetation, preferably with trees, in order to maintain the lands capacity to handle heavy rainfall.<br /> <br /> (Examensarbetet är utfört vid Avd Teknisk vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1325506/file/1325507.pdf application/pdf 5384217 no https://lup.lub.lu.se/student-papers/record/1325506/file/1325508.pdf application/pdf 5384217 no 2006 eng Civil engineering kartografi marklära geomorfologi Fysisk geografi climatology land-use change double ring infiltrometer saturated infiltration rate roots soil properties blue dye tracer Indonesia west Java Physical geography geomorphology cartography pedology klimatologi hydraulic engineering offshore technology soil mechanics Väg- och vattenbyggnadsteknik Earth and Environmental Sciences Technology and Engineering 1325506 2006-05-05T00:00:00+02:00 2009-10-18T18:24:05+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1325657 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH2 Emmanuel Kwame Appiah-Adjei author Diana Allen supervisor Division of Water Resources Engineering v1000225 department With significant changes expected in the earth&#39;s global climate over the next century, due to global warming, and its resulting changes in the frequency and amount of precipitation, there has been growing concerns on climate change impacts on water resources. Especially concerned to water managers and governments is the potential impacts on groundwater aquifers since they are the main available source of potable water supply worldwide.<br /> <br /> This research, therefore, investigates the potential impacts of climate change on groundwater recharge to the fractured bedrock aquifers, which serve as the main source of potable water supply to the inhabitants of Gulf Islands in BC, Canada. Using Statistical DownScaling Model (SDSM) in combination with the LARS-WG stochastic weather generator, daily current and future (i.e., 2010-2039, 2040-2069, and 2070-2099) climate data were generated from CGCM1 predictions of the study location. These predictions were used as input to the HELP hydrologic model for estimation of recharge for the different climate change periods. The main properties of the aquifer -soil permeability, aquifer permeability and water table depth- used for recharge modeling were linked to ArcGIS for generating recharge zones, which allowed spatial and temporal integration of the recharge results.<br /> <br /> The combination of SDSM and LARS-WG in downscaling and predicting both the observed monthly temperature and precipitation was very successful. Mean annual precipitation downscaling with SDSM is predicted to increase by 52%, 65% and 88% relative to the observed for 2020s, 2050s and 2080s, respectively. On the other hand, the mean monthly temperature is predicted to rise by 1.14 ºC in 2020s, 2.05 ºC in the next 30 years and up to 3.5 ºC by the end of the century. According to HELP, the current mean annual recharge is about 44 % of the annual precipitation and is predicted to increase progressively by 7%, 8% and 9% in the 2020s, 2050s and 2080s, respectively, from the current.<br /> <br /> (Detta examensarbete är utfört vid Avd Teknisk vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1325657/file/1325658.pdf application/pdf 2656157 no 2006 eng geographical and geological engineering Hydrogeology Miljöstudier Environmental studies Klimatförändringar GIS HELP recharge modeling LARSWG fractured bedrock SDSM Gulf Islands downscaling climate change Hydrogeologi teknisk geologi teknisk geografi Civil engineering hydraulic engineering offshore technology soil mechanics Väg- och vattenbyggnadsteknik Technology and Engineering Earth and Environmental Sciences 1325657 2006-05-25T00:00:00+02:00 2009-05-29T08:04:13+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1325669 2025-07-29T13:03:30Z SocialBehaviourLaw Technology

studentPublicationsM2 Niklas Dougherty author professor emeritus Lars Ragvald supervisor Chinese Studies v1000131 department Denna uppsats beskriver Internet i Kina i allmänhet, från dess politiska bakgrundsmotiv och inledande grunder till dess nuvarande tillstånd av dynamisk ekonomisk infrastruktur och medel för folkligt politiskt inflytande. Tonvikten läggs vid för Kina unika aspekter, såsom partiinflytande över informationsutbytet, folkliga attityder till fildelning i ett samhälle som bara nyligen erkänt privat ägande samt effekter av kulturkrockar på nätet mellan västlig och kinesisk civilisation. Det argumenteras för att Kina i en framtid kommer att ha ett stort inflytande över cybermarknader och i beslutsfattande om Internets framtida utveckling, genom tekniska, ekonomiska och politiska medel. Slutligen resoneras att Internet i Kina har förändrat och kommer att förändra folkets mentalitet, så att det anammar västerländska tankemönster i liknande utsträckning som i angränsande länder, vilket banar väg för politisk pluralism. https://lup.lub.lu.se/student-papers/record/1325669/file/1325670.pdf application/pdf 7785022 no 2005 swe teorier om socialt arbete Sociala förändringar theory of social work Social changes förvaltningskunskap Statsvetenskap Political and administrative sciences informationssamhället informationsteknik Kina Internet Press and communication sciences Journalistik media kommunikation Systems engineering computer technology Data- och systemvetenskap Technology and Engineering Social Sciences Law and Political Science 1325669 2006-05-08T00:00:00+02:00 2009-03-26T15:06:43+01:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1331964 2025-07-29T13:03:30Z SocialBehaviourLaw Technology

studentPublicationsM3 Johanna Flygare author Nicklas Dahlström supervisor School of Aviation v1000262 department This report concerns the unequal sex distribution among pilots. The purpose was to find an explanation to why this is, and come up with suggestions for a change. It has been done by studying literature on female pilots and women in non-traditional occupations, and by applying gender theories to their findings and conclusions. To be able to examine the role of the pilot the report starts by introducing some important aspects of gender theories. This was done to include the social and cultural aspects of the sexes and explain how gender specific occupational roles are being established. The sex distribution among pilots was also introduced to the reader to show that women seldom make up to more than 10% of the staff in aviation companies. The conclusion that was made, was that the perception of occupations as either male or female is established early and that this is difficult to change. This perception makes it less likely for the underrepresented sex to apply for that kind of work. It was also established that the gender identity is separated from the biological sex. Throughout this work it was found that the pilot role is traditionally masculine. When establishing the biological sex, a presumption about the gender identity is being made. This has to change for women to get equal access to the pilot occupation. The most important change for a less masculine occupation role was found to be an increase of female pilots. https://lup.lub.lu.se/student-papers/record/1331964/file/1331965.pdf application/pdf 83954 no 2005 eng occupation role pilots female pilots trafikflygare trafikflygarprogrammet aviation Gender studies Genusvetenskap Air transport technology Lufttransportteknik Social Sciences Technology and Engineering 1331964 2005-06-16T00:00:00+02:00 2005-06-16T00:00:00+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332020 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Åsa Olsson author Tobias Ember supervisor School of Aviation v1000262 department The main environmental problem for aviation is the great amount of exhaust gases, mainly nitrogen oxides, carbon monoxide, carbon dioxide and hydrocarbons - mostly &quot;greenhouse gases&quot; leading to climate changes. I decided to sort out what is being done to decrease these problems and what regulations there are concerning air pollution by the means of searching the internet and using publications from aviation authorities for current figures. I chose to scrutinize authorities on political, authority and company level, resulting in summarizing the work of UN and EU respectively, ICAO (International Civil Aviation Organization), JAA (Joint Aviation Authorities) and LFV (Swedish Civil Aviation Authority), and finally SAS, representing the airline companies. Conclusion that I have drawn are thatthere are regulations for air pollution, written down in ICAO&#39;s Annex 16, that are to be followed. Secondly, LFV are environmentally controlling their nineteen airports and since economy is an important reason for not giving priority to environmental issues in aviation emission charge and noise charge are added to the landing fees. Finally, the development of engines are successful in the aspect of reducing exhaust gases. Looking at the future there is an obvious risk of even greater total amount of exhaust gases caused by air traffic, in spite of the fact that the engines in this aspect are getting better. Not to forget there are a few advantages for air traffic compared to other means of transport which are mentioned. https://lup.lub.lu.se/student-papers/record/1332020/file/1332021.pdf application/pdf 198421 no 2004 swe civil flygtrafik växthusgaser miljövård air pollution Air transport technology Lufttransportteknik Technology and Engineering 1332020 2005-06-22T00:00:00+02:00 2005-06-22T00:00:00+02:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332024 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Andreas Hansson author Christer Johansson author Nicklas Dahlström supervisor School of Aviation v1000262 department This paper is partially a literature study of human error and interruptions and partially an investigation of pilots and Air Traffic Control. The aim of the investigation was to find out where interruptions occur and how to reduce or eliminate them. The objective of this paper was to investigate what type of interruptions pilots and ATC deals with and during which phases they occur. The paper has revealed that private pilots causes more interruptions for ATC personnel than commercial pilots. The cause for this is probably the less experienced private pilot and the fact that Swedish is used before English by private pilots in communication with ATC. Further on the paper has revealed that communication with ATC causes most interruptions for commercial pilots and that interruptions caused by flight attendants have decreased. The latter is probably caused by the Crew Resource Managment courses. It is when using approach checklist most interruptions occur and there are three different techniques for memorizing the item on the checklist: &quot;Thumb in track&quot;, callout &quot;Hold at item...&quot; or simply just memorize present item. The latter technique is not to be recommended due to the limited resources of the human working memory. https://lup.lub.lu.se/student-papers/record/1332024/file/1332025.pdf application/pdf 341416 no 2004 swe flygtrafikledning störningar interruption errors Air transport technology Lufttransportteknik Technology and Engineering 1332024 2005-06-22T00:00:00+02:00 2005-06-22T00:00:00+02:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332029 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Markus Karlsson author Håkan Lundberg author Christian Bjursten Carlsson supervisor School of Aviation v1000262 department För ett flygbolag är det viktigt att ha en effektiv planering av sina resurser. Att kunna utnyttja personal och flygplan på rätt sätt är en förutsättning för en fortsatt överlevnad på marknaden. Flygbolagens tjänstebestämmelser regleras idag enligt nuvarande BCL-D 1.15. Under våren 2004 har Luftfartsverket behandlat en remiss som utgör ett förslag på en eventuell förändring av dessa tjänstebestämmelser. Remissen är ett förslag som skall gälla det gemensamma regelverket EU-OPS. Arbetet går ut på att undersöka skillnaderna mellan dessa två regelverk. Dels genom att beskriva skillnaderna men även genom att se effekterna vid en jämförelse av aktuella tjänstgöringsperioder. Rapporten mynnar ut i ett resultat som beskriver skillnaderna mellan regelverken och även hur West Air påverkas av dem. Arbetet innehåller även en diskussion där resultatet analyseras och delvis utvecklas. https://lup.lub.lu.se/student-papers/record/1332029/file/1332030.pdf application/pdf 71229 no 2004 swe West air Sweden tjänstgöringsbestämmelser fraktflyg Air transport technology Lufttransportteknik Technology and Engineering 1332029 2005-06-22T00:00:00+02:00 2005-06-22T00:00:00+02:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332071 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Anders Ingman author Rolf Lund supervisor School of Aviation v1000262 department This paper is a literature study of the Head Up Display (HUD) in general with focus on the HUD&#39;s role in the civil aviation industry in particular. The objective is to present the history of the HUD in brief, summarize the basic design, describe the HUD&#39;s role in today&#39;s civil aviation and present the HUD in a human factors concept. This includes describing the human information processing behavior and human spatial disorientations concerning instrument scanning techniques and the most common sensory illusions experienced. There is also a summary of HUD symbology in different phases of flight. Some of the main sources of information have been Richard L. Newman&#39;s book ?Head Up Displays: Designing the Way Ahead? (1995) and Stoke&#39;s ?Display Technology? (1990). The main conclusion is that the HUD aids the instrument scanning process in phases of flight with high workload, such as take off, approach and landing resulting in increased situational awareness, flight precision and flight safety. It also provides airlines with a cost effective alternate in reaching low visibility operations. https://lup.lub.lu.se/student-papers/record/1332071/file/1332072.pdf application/pdf 636698 no 2005 eng siktlinjesindikator head up display HUD flyginstrument Air transport technology Lufttransportteknik Technology and Engineering 1332071 2005-06-23T00:00:00+02:00 2005-06-23T00:00:00+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332075 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Daniel Sülla author Nicklas Dahlström supervisor School of Aviation v1000262 department Som grund för denna uppsats ligger en tidigare undersökning med titeln Undersökning av mental arbetsbelastning under instrumentflygövningar (Andreas Johnsson, 2004). Denna uppsats utgör en fortsättning på ovan nämnda undersökning. Liksom i Johnssons (2004) undersökning har en subjektiv mätmetod baserad på en niogradig skala använts för att utvärdera svaren på den enkät som använts för att få fram data. I denna uppsats undersöktes samma kurs som i den tidigare undersökningen. Det vill säga studenterna i kurs 03:2 vid Trafikflyghögskolan, Lunds universitet. Uppsatsen bygger på samma frågeformulär som användes i ovanstående undersökning. Undersökningen i detta arbete baseras på flygning i ett tvåmotorigt flygplan jämfört med flygning i ett enmotorigt flygplan. Ingen av deltagarna i undersökningen har tidigare erfarenhet av att själv flyga ett tvåmotorigt flygplan och man kan då anta att den upplevda mentala arbetsbelastningen bör bli stor. Detta antagande är grundat på att studenterna saknar erfarenhet från tvåmotoriga flygplan, att det tvåmotoriga flygplanet har mer instrument att övervaka och det är ett större flygplan att hantera. Av undersökningen framkom att studenterna ofta upplevde att de hade mer tid över till annat, under flygningen i det tvåmotoriga flygplanet, samt att de mindre ofta kände sig störda av information som inte berörde flygningen. Detta jämfört med flygning i det enmotoriga flygplanet. Vidare framkom att ILS inflygningar upplevdes som mer mentalt arbetsbelastande i det tvåmotoriga flygplanet. Det kan bero på att man varit sämre förbered inför detta pass. Goda förberedelser visar sig göra att studenterna känner att de presterar bättre under sina flygpass. Kanske bör mer tid läggas på att planera sin flygning. Alternativt kan briefingarna se annorlunda ut så studenterna uppmuntras att förbereda sig bättre. https://lup.lub.lu.se/student-papers/record/1332075/file/1332076.pdf application/pdf 278261 no 2005 swe arbetsbelastning instrumentflygning flygning flygövning Air transport technology Lufttransportteknik Technology and Engineering 1332075 2005-06-23T00:00:00+02:00 2005-06-23T00:00:00+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332079 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Henrik Adolfsson author Christoffer Lantz supervisor School of Aviation v1000262 department Turbulens är ett väderfenomen som har orsakat många olyckor och incidenter. Speciellt farligt är klarluftsturbulens eftersom fenomenet ej är synligt för blotta ögat, samt att det kan uppstå mycket plötsligt. Mycket pengar och resurser har lagts ned för att ta fram system som skall kunna detektera och automatiskt rapportera turbulens. Denna uppsats beskriver kortfattat hur några av dessa system fungerar samt hur systemen skall bidra till att piloter lättare skall kunna förbereda för eller undvika turbulens. Uppsatsen beskriver system för prognostisering, detektering och automatisk rapportering av turbulens med tyngdpunkt på klarluftsturbulens. https://lup.lub.lu.se/student-papers/record/1332079/file/1332080.pdf application/pdf 413839 no 2005 swe klarluftsturbulens flygsäkerhet Clear Air Turbulence Air transport technology Lufttransportteknik Technology and Engineering 1332079 2005-06-23T00:00:00+02:00 2005-06-23T00:00:00+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332083 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Axel Bergdahl author Michael Johansson author Torbjörn Zetterholm author Nicklas Dahlström supervisor School of Aviation v1000262 department Varje dag begås misstag utav människor. För piloter kan dessa misstag bli fatala. Länge har man vid flygolyckor endast sett till de direkta misstag som blivit begångna och på så sätt skaffat sig en syndabock. I detta arbete kan dock vikten av att uppmärksamma faktorer som varit bakomliggande i organisationen påvisas. Då en olycka inträffar skiljer man mellan osäkra handlingar och latenta förhållanden. De osäkra handlingarna begås av personal som agerar i systemets frontlinje och är vad som utlöser själva olyckan. Latenta förhållandena kan uppkomma i en helt annan del av organisationen och ligga dolda där under en lång tid. De kan vara en följd av beslut fattade av organisationens ledning, missförhållanden hos underleverantörer eller brister hos reglerande myndigheter. Latenta förhållandena kan såväl öka frekvensen av osäkra handlingar som förvärra följderna då en osäker handling begås. https://lup.lub.lu.se/student-papers/record/1332083/file/1332084.pdf application/pdf 2447174 no 2005 swe säkerhetskultur Safety Management System flygsäkerhet Air transport technology Lufttransportteknik Technology and Engineering 1332083 2005-06-23T00:00:00+02:00 2005-06-23T00:00:00+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332089 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Jennie Meijer author Christian Bjursten Carlsson supervisor School of Aviation v1000262 department Joniserande strålning, i dagligt tal oegentligt benämnd radioaktiv strålning, förekommer naturligt och utgör en hälsofara för allt organiskt liv. De viktigaste källorna till sådan strålning är radon som finns i varierande mängd i bergrunden, sådant radioaktivt material som finns i all materia (t.ex. Kol-14, Kalium-40), strålning som uppkommer i samband med mänsklig aktivitet (medicinska tillämpningar, kärnkraft, kärnvapenprov) och den kosmiska strålningen. Av dessa ökar den kosmiska strålningen med ökad höjd över havsytan, men samtidigt avtar den sammanlagda stråldosen från de andra källorna något. Sammantaget sker dock en viss ökning av stråldosen med ökande höjd. Denna ökning är märkbar på sådan höjd där det förekommer flygtrafik. https://lup.lub.lu.se/student-papers/record/1332089/file/1332090.pdf application/pdf 836103 no 2005 swe joniserande strålning flygning kosmisk strålning Air transport technology Lufttransportteknik Technology and Engineering 1332089 2005-06-23T00:00:00+02:00 2005-06-23T00:00:00+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1332217 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Ingrid Brännlund author Lina Svensson author Professor Magnus Larson supervisor Division of Water Resources Engineering v1000225 department Problemställning: Erosion är ett problem längs många stränder i Sveriges. Ett flertal stränder i Lomma kommun (sydvästra Skåne) har eroderat under en längre tid, vilket har negativt påverkat kustnära infrastrukturer och aktiviteter. Föreliggande studie fokuserar på erosionsproblemen längs en kuststräcka definierad av Öresundsvägen och V:a Kennelvägen i Bjärred, beläget i norra delen av kommunen. Där hotas bebyggelse och infrastruktur av vågor som skapas av stormar vilka mestadels uppträder under höst- och vinterperioden. Stormarna bidrar till höga uppspolningshöjder genom vågorna som tillsammans med höga vattenstånd eroderar material från strandbankarna. Detta material består till stor del av finjord (ler och silt), men också av en del sand. Den eroderade sanden kommer att till viss del tillföras strandområdet medan finjorden transporteras ut från kusten och återförs inte till området. Detta skapar en obalans som innebär att kuststräckan eroderar på längre sikt.<br /> <br /> Syfte: Syftet med examensarbetet är i första hand att analysera hur vågor och vattenstånd påverkar stranden i Bjärred samt utreda orsakerna till erosionen på den studerade kuststräckan. Examensarbetet ska vidare ge en teoretisk bakgrund till att utforma de lerkonstruktionerna som planerats att användas för att skydda strandbankarna mot erosion. Målsättningen är även att uppskatta hur lerkonstruktionerna kommer att påverkas av vågor och vattenstånd i tiden.<br /> <br /> Metod: Initiellt genomfördes en studie av aktuell litteratur inom området, samtidigt som tidsserier av data omfattande vind och vattenstånd beställdes från SMHI. Serierna analyserades statistiskt och karakteristika för extrema stormar bestämdes. Med utgångspunkt från vinddata beräknades vågor och samhörande uppspolningshöjder. Vidare gjordes analys av flygbilder över den aktuella kuststräckan. Vegetationslinjen mättes in och jämfördes för att få fram storleken på erosionen under åren 1960-2004. Därefter utfördes två fältundersökningar, först en undersökning av strand- och bottenprofilerna, och sedan en undersökning av jordmaterialets egenskaper på den aktuella kuststräckan. På basis av våg- och vattenståndsdata beräknades sedimenttransporten vinkelrätt och parallellt med stranden. De beräknade transportmängderna låg till grund för att uppskatta eroderade volymer längs kusträckan. Utifrån jordproverna och beräkningarna av uppspolningshöjderna uppskattades påverkan på lerkonstruktionerna och nödvändig hållfasthet. Två olika lutningar på de planerade lerkonstruktionerna undersöktes.<br /> <br /> Slutsatser: Vid undersökning av fem flygbilder (1960?2004) har vegetationslinjen i genomsnitt förskjutits ca 8,2 m inåt land med en variation från 0 till 16 m, vilket indikerar på en fortskridande erosion i området. Erosionstillfällena är få men kraftfulla när de väl inträffar. Uppspolningshöjden överskrider nivån +1,3 m i strandprofilen i genomsnitt 4 ggr/år. För att erosion ska ske krävs det dock en viss varaktighet, på grund av tröghet i erosionsmekanismen. Detta innebär att det erfodras en viss tid av vågpåverkan mot banken innan erosion sker. Enligt beräkningar är den totala varaktigheten för uppspolningshöjder över +1,3 m cirka 11 tim/år. Undersökning har gjorts på framtida strandprofillutningar. En brant lutning ger högre uppspolningshöjd än en flack lutning, vilket ger en större påverkan på konstruktionen och ett högre slitage. Vid brant lutning ökar även risken för överspolning. Jordmaterialet som finns på den aktuella stranden är homogent och hårt packat. Det innebär att det tillförda materialet måste packas minst lika hårt som det befintliga för att få en tillräckligt hög hållfasthet. Vid tillförsel av samma material med samma packningsgrad som idag kommer påverkan på stranden vara likadan som tidigare. Detta kan innebära att underhåll kommer att vara nödvändigt för att förhindra en fortsatt erosion inåt land. För att uppnå en högre hållfasthet än i dag krävs ytterligare packning av det tillförda och befintliga materialet eller annan typ av erosionsskydd. En begränsad kustparallell (netto-) sedimenttransport sker sydvästlig riktning. Beräkningar ger ett medelvärde på den potentiella kustparallella nettotransporten på 15000 m3/år. Vid erosion av strandbanken sker dock transport huvudsakligen vinkelrätt stranden. Ett medelvärde på denna transporten från stranden är beräknat till 114 m3/år (längs hela kuststräckan). (Examensarbetet är utfört vid Avd f Teknisk Vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1332217/file/1332218.pdf application/pdf 5038754 no 2005 swe offshore technology Civil engineering Teknik Technological sciences teknisk geografi Bjärred Erosion vågor vind vattenstånd sedimenttransport uppspolning sediment transport lerkonstruktion erosionsskydd waves water level wind wave runup clay structure shore protection Hydrogeology geographical and geological engineering teknisk geologi Hydrogeologi hydraulic engineering soil mechanics Väg- och vattenbyggnadsteknik Environmental technology pollution control Miljöteknik kontroll av utsläpp Earth and Environmental Sciences Technology and Engineering 1332217 2005-08-25T00:00:00+02:00 2009-10-18T18:26:27+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333297 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Jens Månsson author Peter Gärdenfors supervisor Cognitive Science v1000050 department A model of the human stereopsis mechanism is presented. As foundation for the model lies a number of ideas that has arisen from redefining the correspondence problem. Instead of establishing potential matches by the detection and matching of some set of ?predefined? features, e.g. edges (zero-crossings) or bars (peaks/throughs), matches are sought by comparing the overall configuration of contrast within delimited regions of the two images. The main disambiguating<br /> <br /> power of the model is provided by combining the results of the matchings from a number of independent channels of<br /> <br /> different coarseness (in regard to the resolution of the contrast information). The idea is that the information in the coarser channels can be used to restrict the domain of potential matches, to be considered, within the finer channels. Important for this assumption is the concept of figural continuity. To further reduce the set of potential matches, the model relies on the constraint of uniqueness. A computer implementation of the model is presented, which from the input consisting of a stereogram, produces a representation of the binocular disparity present within the stereogram. A number of results obtained from this computer implementation are also presented and discussed. https://lup.lub.lu.se/student-papers/record/1333297/file/1333298.pdf application/pdf 508828 no 1997 eng Artificial intelligens stereopsis correspondence problem figural continuity Artificiell intelligens Technology and Engineering 1333297 2005-09-13T00:00:00+02:00 2009-04-20T11:19:18+02:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333605 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH2 Goncalo Ferreira Cardoso author Charlotta Borell Lövstedt supervisor Division of Water Resources Engineering v1000225 department Vegetation is known to have different effects in shallow water environments, including changes in hydrodynamics. This often creates the need to include vegetation in large scale hydrodynamic models, which nowadays can already be achieved using some software packages available in the market. This work, however, had the purpose to test simple methods to simulate vegetation in hydrodynamic models without having the need to use vegetation specific software.<br /> <br /> Method: The tests were done using the MIKE 21 hydrodynamic module, developed by DHI Software, and two simple models were tested under different wind conditions. One of them simulated submerged vegetation by reducing the bottom depth as well as increasing the flow resistance values, while the other one, used to simulate emerged vegetation, consisted only of a significant increase in the flow resistance. In order to validate the models and the results obtained some field measurements were made in a local shallow lake, Krankesjön, and it was possible to see that the emerged vegetation used was plausible and also a good approximation, which didn?t clearly happen with the emerged model. The current speed values obtained by the modeling were consistent with the values measured in the lake, always in the order of greatness of a few centimeters per second.<br /> <br /> Results: The results obtained by the numeric modeling showed evident decreasing in the current speed values after introducing the vegetation models, along in some cases with changes in the preferential flow paths.<br /> <br /> Conclusion: As an overall conclusion of the project, the submerged vegetation model showed to potentially be a good approximation to study hydrodynamics in shallow lake environments, even if used only as a preliminary study, while the emerged model didn?t prove to be so reliable. Some improvements and further tests are suggested to both models, in particular to the one for emerged vegetation, such as altering the wind friction values in the water surface over the areas with emerged vegetation to better approximate the real phenomenon.<br /> <br /> (examensarbetet är utfört vid avd. Teknisk vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1333605/file/1333606.pdf application/pdf 2504991 no 2005 eng Environmental technology Väg- och vattenbyggnadsteknik soil mechanics vegetation modelling vegetation modeling lake hydrodynamics shallow lakes hydrodynamic models hydraulics Technological sciences Teknik Civil engineering offshore technology hydraulic engineering pollution control Miljöteknik kontroll av utsläpp Technology and Engineering Earth and Environmental Sciences 1333605 2005-11-26T00:00:00+01:00 2009-10-18T18:20:11+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333609 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Evelina Karlsson author Karolina Persson author Associate professor Rolf Larsson supervisor Division of Water Resources Engineering v1000225 department Bakgrund: De centrala delarna av Vietnam har en årlig nederbörd på 4000 mm/år och det är vanligt med hastigt uppkomna översvämmningar (s.k. flash floods) här. Flash floods är plötsliga översvämmningar med ett högt flöde producerade av kraftiga regn. De sker oftast under natten och ger ofta upphov till jordskred. År 1999 skedde det en stor översvämning som spred sig 200 km längs kusten och dödade över 700 människor. Ett av områdena som drabbades var avrinningsområdet Tuy Loan. Det består av höga berg med branta sidor vilket gör det sårbart för flash floods. I avrinningsområdet har hydrometeorologiska mätningar skett under oktober och november 2003.<br /> <br /> Syfte: Huvudsyftet med studien är att öka förståelsen för de hydrologiska funktionerna i avrinningsområdet med betoning på flash floods.<br /> <br /> Metoder: För att analysera de hydrologiska processena i området analyserades vattenbalansen, respons tid och hydrografen. För att simulera flash floods användes enhetshydrografen och en avrinnigsmodell framtagen för flash floods (HRCmodellen). För att undersöka om det fanns ett mönster i hur det regnade gjordes en korrelationsanalys mellan stationerna i Tuy Loan och Thu Bon.<br /> <br /> Slutsatser: Svårigheterna med att förutse en flash flood gör att det är komplicerat att konstruera ett varningsystem. För att göra bättre prognoser behövs att en mer noggrann undersökning genomförs. Detta kan göras genom att analysera regnvärdena noggrannare genom att till exempel undersöka deras ursprung och rörelsemönster innan de når avrinningsområdet. En bättre förståelsen av avrinningsområdets funktioner skulle också uppnås genom att göra en geologisk undersökning av området. Det hade även varit önskvärt att genomföra mätningar under flera regnperioder i området för att få flera höga flöden att arbeta med. Detta hade kunnat förbättra funktionerna i modellerna som använts. Resultatet från denna rapport är inte tillräckliga för att kunna konstruera ett varningsystem.<br /> <br /> (examensarbetet är utfört vid avd. Teknisk vattenresurslära, TVRL) https://lup.lub.lu.se/student-papers/record/1333609/file/1333610.pdf application/pdf 1937823 no https://lup.lub.lu.se/student-papers/record/1333609/file/1333611.pdf application/pdf 99250 no 2005 eng Väg- och vattenbyggnadsteknik soil mechanics offshore technology hydraulic engineering Tuy Loan Flash floods Thu Bon centrala Vietnam Da Nang vattenbalans hydrograf enhetshydrograf looprating curve korrelation HRC-model Technological sciences Civil engineering Teknik Environmental technology pollution control Miljöteknik kontroll av utsläpp Technology and Engineering Earth and Environmental Sciences 1333609 2005-11-26T00:00:00+01:00 2009-10-18T18:28:52+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1333615 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Oskar Ljungqvist author Ylva Schwinn author Jes la Cour Jansen supervisor Professor Kenneth M Persson supervisor Division of Water Resources Engineering v1000225 department Ämne för detta examensarbete valdes efter en förfrågan från UNICEF att bistå dem att utvärdera ett mobilt system för dricksvattenproduktion. Sedan juni 2003 har EmWat 4000-systemet använts i Etiopien i områden med vattenbrist. För att försäkra sig om att systemet fungerar effektivt och att det producerade vattnet är av tillräckligt hög kvalitet behövdes en utvärdering.<br /> <br /> Målet med examensarbetet är att utföra utvärderingen av EmWat 4000 för UNICEF i Etiopien med avseende på hur vattenreningssystemet har fungerat, att identifiera begränsningar samt att undersöka hur anpassningsbart systemet är till olika förhållanden i Etiopien. För att uppnå målet har arbetet indelats i tre aktiviteter: tester av den mikrobiella kvaliteten på dricksvattnet som producerats på tre olika platser, utvärdering och summering av resultat från tidigare driftstillfällen och utförandet av två fullskaletest för att undersöka hur olika tänkbara åtgärder kan påverka reningsprocessen. Besöken på de olika platserna syftade även till att samla praktiska erfarenheter av systemet samt problemen som kan uppstå vid drift.<br /> <br /> EmWat 4000 är ett komprimerat vattenreningssystem som är lätt att transportera och kan producera upp till 4000 liter dricksvatten per timme. Systemet är speciellt anpassat för katastrofhjälp där det finns ytvatten att tillgå. EmWat 4000 är uppbygg av fyra olika reningsprocesser: flockulering, sandfiltrering, aktivt kolfiltrering och klorering. I utrustningen ingår fyra olika kemikalier för flockuleringsprocessen. Av dessa är två koaguleringskemikalier och två flockuleringskemikalier. Typen av kemikalie för vattenreningen bestäms utifrån kvaliteten på råvattnet som skall användas. Klor doseras från en behållare där hypoklorittabletter har placerats.<br /> <br /> Det huvudsakliga målet vid produktion av dricksvatten är att avlägsna patogena organismer. Därför bedömdes reningsgraden i systemet genom räkning av E-coli i det renade vattnet. Denna bakterie är en indikator på fekal förorening som medför en förhöjd risk att patogena organismer finns i vattnet. För att komplettera resultaten av bakterieräkningarna mättes turbiditet, fri klorhalt och pH för att bedöma disinfektionsförhållandena. Dessa uppmätta värden jämfördes sedan med rapporterade resultat från andra områden där EmWat 4000 tidigare använts.<br /> <br /> En del av fullskaletestet var att undersöka hur och till vilken grad antalet koagulerings- och flockuleringstabletter påverkar reningsprocessen. Filtreringssteget, där patogena organismer samt partiklar avlägsnas, kan avsevärt förbättras med hjälp av en effektiv flockulering. Kloreringen som oskadliggör de organismer som passerat filtret är enbart slagkraftig då partikelhalten är låg. För att optimera flockuleringssteget är valet av kemikalier för varje enskilt vatten avgörande. Därför testades olika antal och kombinationer av tabletter och dess olika effekt på turbiditetsreduktion i sandfiltret mättes. Vidare bestod fullskaletestet i att analysera hur flödet påverkade reningsgraden. Turbiditetsreduktionen, över sandfiltret, vid användande av designflödet på 4000 l/h jämfördes med det halverade flödet. Slutligen undersöktes även turbiditetsreduktionen i filtret med aktivt kol.<br /> <br /> Resultaten från de tidigare driftstillfällena bekräftade att EmWat 4000 kan producera dricksvatten av god kvalitet. Testresultaten från de platser som besöktes under detta arbete uppnådde dock inte WHO:s dricksvattenstandard. Den låga kvaliteten anses bero på att delar av utrustningen var skadad eller trasig samt att alla delar inte användes. Troligtvis hade filterenheterna gått sönder då vatten renats vid ett för högt flöde utan att säkerhetsventilen använts. Fullskaletestet visade att tillsatts av flockuleringsmedel medförde en markant förbättring av turbiditetsreduktionen då designflödet användes. Även sänkning av flödet visade förhöjd reningsgrad med avseende på turbiditet. Resultaten från fullskaletestet antydde även att kolfiltret inte har kapacitet att reducera höga halter av turbiditet. Praktiska erfarenheter av systemet var att det är lätthanterligt men kräver noggrannhet vid installering och drift för att erhålla acceptabel dricksvattenkvalitet. Dessutom visade sig manualen vara bristfällig i information och presentationen av denna samt även missvisande vad gäller turbiditets-gränsvärdet för klorering. Samtalen med driftsteknikerna gav intrycket att många var nöjda med EmWat 4000.<br /> <br /> Slutsatsen är att EmWat 4000 har kapacitet att producera dricksvatten av en acceptabel kvalitet, men, behovet av noggrann drift understryks. Designflödet skall ej överskridas för att förhindra att utrustningen skadas. Vidare skall mätning och kontrollering av vattenkvaliteten utföras regelbundet för att försäkra att WHO:s standard uppnås. Då snabb vattenproduktion är angeläget vid katastrofhjälp är det fördelaktigt att i första hand använda flockuleringskemikalier för att förbättra reningsgraden vid högturbida vatten. I andra hand kan flödet reduceras. Manualen bör förbättras och kompletteras med mer information för att möjliggöra bättre anpassningar till olika förhållanden i fält. För att förhindra att kolfiltret sätts igen bör det i manualen finnas ett gränsvärde för hur hög turbiditet som kan tillåtas passera. Slutligen, genom att uppmuntra att erfarenheter sammanställs och förs vidare kan effektiviteten vid framtida driftstillfällen förhöjas.<br /> <br /> (examensarbetet är utfört för avd. Teknisk vattenresurslära (TVRL) och VA-teknik, LTH) https://lup.lub.lu.se/student-papers/record/1333615/file/1333616.pdf application/pdf 2680736 no 2005 eng pollution control Teknik Technological sciences water treatment kit clean drinking water EmWat 4000 water purification system water quality carbon filter dricksvatten Environmental technology dricksvattenproduktion vattenreningssystem vattenkvalitet reningsprocess Miljöteknik kontroll av utsläpp Technology and Engineering Earth and Environmental Sciences 1333615 2005-11-26T00:00:00+01:00 2009-10-18T18:30:10+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318198 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Johan Jernström author Christian Balkenius supervisor Cognitive Science v1000050 department The area of autonomous parking attracts a great deal of attention from the research community and the automobile industry. Research has showed that many robotic navigation systems fail to deliver the performance and flexibility of animal navigation techniques, even though they are both mathematically and technologically complex. Biomimetic robotic research, i.e., research that tries to mimic biological solutions, has inspired me to take on a simplified approach to the task of autonomous parallel parking. In this study, three ways to reduce the complexity of the task are shown and demonstrated by the implementation of a car-like mobile robot. First, a distinction between to autonomouslyfind a free parking place and to autonomously park a vehicle is made, where only the latter is of relevance. Second, nothing but the goal, i.e., the free parking place, needs to be plotted on the internal map. Finally, the solution should only use cheap and commonly available technologies. The practicability of the prototype is measured in terms of performance, accuracy and reliability, with satisfactory results. https://lup.lub.lu.se/student-papers/record/1318198/file/1318199.pdf application/pdf 1896208 no https://lup.lub.lu.se/student-papers/record/1318198/file/1318200.mp4 application/octet-stream 6979496 no 2008 eng autonomous parking parallel parking car-like vehicle mobile robot path planning map-learning robotic navigation Computer science, numerical analysis, systems, control Datalogi, numerisk analys, system, kontroll Artificial intelligens Artificiell intelligens Technological sciences Teknik Technology and Engineering 1318198 2008-06-08T00:00:00+02:00 2008-08-18T00:00:00+02:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318216 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Alexander Jonsson author Henrik Lööw author Mats Johnsson supervisor Packaging Logistics v1000238 department Problemformulering: Järnvägstransporter av gods har på senare år tappat stora<br /> <br /> marknadsandelar till vägtransporterna. Orsakerna är många, en<br /> <br /> av dem kan konkretiseras till en betydande envägstrafik vilket<br /> <br /> är en direkt följd av dålig lastsäkringsutrustning i vagnarna.<br /> <br /> Målsättning: Målet med projektet är att utveckla ett koncept för ny typ av<br /> <br /> lastsäkringsutrustning som kan integreras till befintlig<br /> <br /> vagnpark. Utrustningen ska alltid finnas i vagnen och ha<br /> <br /> möjlighet att lastsäkra flera typer av produktflöden men<br /> <br /> framförallt palleterat gods.<br /> <br /> Förutom grundläggande krav på hållfasthet för de krafter som<br /> <br /> uppkommer vid rangering och transport ska utrustningen<br /> <br /> samtidigt vara så liten som möjligt både vad gäller vikt och<br /> <br /> volym.<br /> <br /> Metod: Projektet är i grunden en produktutveckling vilken består av en<br /> <br /> stegvis utarbetad modell av Ulrich och Eppinger när väl<br /> <br /> problemet hade identifierats. Dessförinnan krävdes dock en<br /> <br /> normativ studie för att klargöra de problem som åligger och<br /> <br /> som behöver lösning. Informationsinsamlingen har framförallt<br /> <br /> bestått av kvalitativ data av både primär och sekundär karaktär.<br /> <br /> Slutsatser: Författarna anser att en förändring i dagens konservativa<br /> <br /> bransch är önskvärd för att stärka järnvägens konkurrenskraft.<br /> <br /> Integrering av författarnas lastsäkringsutrustning skulle<br /> <br /> innebära en stärkt marknadsposition för järnvägens roll som<br /> <br /> godstransportör. Den utvecklade utrustningen består utav<br /> <br /> ledade stöttor i aluminium vilket gör den betydligt lättare<br /> <br /> viktmässigt än dagens utrustningar. Det finns även möjlighet<br /> <br /> att fälla ihop utrustningen när den inte används för att på så vis<br /> <br /> inte påverka lastkapaciteten. Utrustningen skulle bidra till<br /> <br /> minskad envägstrafik i och med att flera olika produktflöden<br /> <br /> kan transporteras i en och samma vagn samtidigt som<br /> <br /> infrastrukturens belastning minskar. Godset kan lastsäkras på<br /> <br /> ett effektivare och säkrare sätt vilket kommer resultera i färre<br /> <br /> godsskador. https://lup.lub.lu.se/student-papers/record/1318216/file/1318217.pdf application/pdf 2245323 no 2008 swe Cargo securing device Railway transports Järnvägstransporter Lastsäkringsutrustning Technological sciences Teknik Technology and Engineering 1318216 2008-06-08T00:00:00+02:00 2010-02-01T14:40:03+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318311 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kristofer Elmström author Daniel Hellström supervisor Packaging Logistics v1000238 department Problem area<br /> <br /> Alfa Laval is a world leading company in the heat transfers area and have the vision to continue to be that in the future as well. The company has a lot of press lines where the utilization is high and also has started to become old. Prognosis shows that there is an increased demand of heat exchanger in the future. This increased demand is not something that existing lines will manage. To build new lines cost a lot of money and take time so it is essential that new lines are correct from the start and not need to be rebuilt or a lot of time spent to trim it.<br /> <br /> Goal<br /> <br /> The goal is to achieve 100% theoretical utilization of the press (the press shall press the amount of plates it is designed for). This means that data for the other machines in the line must be decided. Part goals of this project is:<br /> <br /> · To visualize the future press line so personnel will have a common picture of the whole line.<br /> <br /> · To decide flowcharts and layout for the future line.<br /> <br /> · To analyze the size and form of the storage after the line.<br /> <br /> · Examine the data for loading device and other bi-stations in the line so the press will strike the amount of strikes it is designed for (100% theoretical utilization)<br /> <br /> Method<br /> <br /> To do the calculations manually is both complex and time demanding. Simulations is a good alternative to use to solve this problem since it will make the dimensioning work easier and also make it possible to analyze future problem areas and situation. To have the possibility to analyze, do tests and examine how the press line will act when the conditions changes before the line is built makes simulation a good and interesting tool to use. Since the flow is complex and has a great variation makes the solution of computer simulation even more interesting.<br /> <br /> Result and discussion<br /> <br /> There are different sets of combination of the data that can be used so the goal will be achieved. There are two solutions that seem to be more suitable than the others; future studies can show which one is best. Some assumption has been made for those machines where no solution is available at present; further studies must be made in this area.<br /> <br /> Conclusion<br /> <br /> The solution that is used in this master thesis still has several problems to solve. One example is the handling of the copper folio. If the unsolved problem are solved and have the data that is assumed will Alfa Laval have two solutions to decide between. Future tests and economical analyzes will show which one is the most suitable for the company. https://lup.lub.lu.se/student-papers/record/1318311/file/1318312.pdf application/pdf 1143258 no 2008 swe flow analysis simulation visualize Technological sciences Teknik Production technology Produktionsteknik Technology and Engineering 1318311 2008-06-16T00:00:00+02:00 2010-02-01T14:40:03+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318480 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Rikard Hedenblad author Marcus Ljungdahl author Mats Johnsson supervisor Packaging Logistics v1000238 department Introduction: To remain competitive, industrial organisations are continually faced with the<br /> <br /> challenges to improve product quality, reduce product development time, reduce production<br /> <br /> costs and lead-times. Increasingly, these challenges cannot be effectively met by isolated<br /> <br /> changes to specific organizational units.<br /> <br /> The Supply Chainis a revolutionary concept embedded in a traditional guise. In brief a Supply<br /> <br /> Chaincan be said to be the way physical goods and virtual information travels from the<br /> <br /> supplier to the customer and all the steps there between. Supply ChainManagement changes<br /> <br /> the demands on the material flow. Managing the Supply Chainhas become one of the most<br /> <br /> important tasks for managers in the recent years.<br /> <br /> The use of simulation tools has long been used in manufacturing and assembly operations. As<br /> <br /> the use of simulations grew in the 1980s and the availability of simulation packages it helped<br /> <br /> to push the tool into many other application areas and thus exposed new groups of people to<br /> <br /> simulation.<br /> <br /> The primary task for a manager is to integrate each stage into a larger system. Individual<br /> <br /> organisations at each stage still manage resources, set objectives and pursue individual<br /> <br /> objectives but when the companies within the Supply Chainwork as one the true source of<br /> <br /> leverage appear.<br /> <br /> Simulation technology is emerging as a new tool in Supply ChainManagement and its basic<br /> <br /> strength is in evaluating system variation and interdependencies. This key component allows<br /> <br /> a decision maker to evaluate changes in part of the Supply Chainand visualize the impact<br /> <br /> those changes have on the other system components and ultimately the performance of the<br /> <br /> entire supply chain.<br /> <br /> Problem Definition: IKEA is expanding in the United Kingdom. Due to this situation a<br /> <br /> number of problems will arise. How will the transportation costs look like in the future? Is it<br /> <br /> possible for IKEA to have only one DC in the UK?<br /> <br /> IKEA is in need of information about the Supply Chain. Is LORD a suitable program for<br /> <br /> IKEA and how does it work?<br /> <br /> Objectives: The objectives with the project are:<br /> <br /> · To simulate the current situation and to build a simulation model which we can use for<br /> <br /> benchmarking.<br /> <br /> · To evaluate the program LORD and see if it would fit for IKEA as a simulation tool. · Create up to four different scenarios.<br /> <br /> · To find a solution that fits the future needs of IKEA.<br /> <br /> · The desired output is to identify the optimum number and location of DCs for the<br /> <br /> network.<br /> <br /> Conclusions : To use a simulation tool that can work with a model without making too many<br /> <br /> simplifications would be a great asset to IKEA and help them in their decision making since<br /> <br /> they operate in a complex environment.<br /> <br /> Lord is program that may be very well suited for a minor company to model problems of<br /> <br /> limited scope in time and in data. It may also, with more develop, become a suitable tool but<br /> <br /> the version available today is not one we would recommend. For IKEA&#39;s case the best thing<br /> <br /> would be if it had a working excel- interface and the capability to run advanced simulation at a<br /> <br /> faster and more reliable rate.<br /> <br /> Maybe IKEA can switch to one DC, but this action needs a more thorough investigation and<br /> <br /> simulation with more correct data. The simulations that we have made gives a hunch that the<br /> <br /> transportation costs can be kept under control and maybe in fact be a bit lower than they are<br /> <br /> today. https://lup.lub.lu.se/student-papers/record/1318480/file/1318481.pdf application/pdf 1038768 no 2002 eng Supply chain LORD Simulating Technological sciences Teknik Technology and Engineering 1318480 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318485 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dan Winberg author David Nilsson author Gunilla Jönson supervisor Packaging Logistics v1000238 department Packaging is one of the logistics areas where there often is potential and even a demand for improvements. An increase in environmental awareness among the population in the European Union (EU) has generated a demand for changes in packaging, which has led to stricter rules and regulations. Knowledge about what regulations are present and what may be expected in the future is crucial in the forming of a packaging strategy for Perstorp Specialty Chemicals. Questions to be answered are for example:<br /> <br /> What present and future rules and regulations in the EU concern handling of packaging after emptying? What alternatives regarding handling of used packaging are available today in the different countries of EU? How can Perstorp Specialty Chemicals adapt to these regulations and take care of their used packaging in an environmentally more friendly way?<br /> <br /> Material for this report has been taken from the Internet, books, articles, law prints and brochures from companies/organisations. These sources have been followed up by interviews, written questionnaires and case studies.<br /> <br /> A directive (94/62/EC) on Packaging and Packaging Waste came into force the 2Oth December<br /> <br /> 1994. This directive cover all packaging placed on the market, and all kind of packaging, within<br /> <br /> the EU. Each member state shall take the necessary steps to reach the following targets by 2001:<br /> <br /> 50% as a minimum and 65% as a maximum by weight of the packaging must be recovered, and<br /> <br /> 25% as a minimum and 45% as a maximum by weight must be recycled.<br /> <br /> All member states have chosen different ways in reaching these targets. There are four ways for an exporting company to meet with this. To take back the used packaging yourself, pay the importer for taking over the responsibilities, join an organisation to take care of the used packaging or use a collection system provided by the supplier of the packaging.<br /> <br /> The directive will be reviewed every five years, but for the next period (starting in 2001) the only substantial changes will probably be in the recovery/recycling targets.<br /> <br /> Options for waste management are often arranged in a hierarchical manner including prevention, reuse, recovery and landfill/incineration. The hierarchy is not explicitly expressed in the Directive, but supported by the European Commission. A life cycle assessment should be performed to find the best way of disposing the used packaging in each specific case.<br /> <br /> There are different ways of taking care of the used packaging in the different countries of EU. There is no possibility to say that one way of handling certain packaging is more environmentally friendly than another, analysis has to be done for every case. For the packaging used by Perstorp Specialty Chemicals division Polyols there is today no need for any sudden changes to be able to continue to deliver products. This does not mean that no changes should be done. As the targets are getting higher and there is economic means introduced it will require changes to continue being a strong competitor. https://lup.lub.lu.se/student-papers/record/1318485/file/1318486.TIF image/tiff 1252444 no 1999 eng used packaging european union LCA Technological sciences Teknik Technology and Engineering 1318485 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318490 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Fagrenius author Gunilla Jönson supervisor Packaging Logistics v1000238 department Systemet för att behandla och distribuera förpackningsinformation, SPIS används idag ej som det var tänkt. Systemet har låga driftskostnader i form av förvaltning och annat underhåll. Däremot kräver det en stor manuell arbetsinsats för att distribuera och arkivera<br /> <br /> förpackningsinformation. Det är svårt att motivera en utveckling av ett nytt system med hjälp av besparingar av driftskostnader som enda motiv. Om information blir lättare att få fram och distribuera, samt att nya medarbetare får lättare att lära sig systemet, blir en systemutveckling intressantare. Riktigt intressant blir det dock ej förrän systemet kan stödja arbetet inom inköpsavdelningen. Stora besparingar kan också göras med minskad ompackning om systemet kan hantera flera olika förpackningslösningar.<br /> <br /> Dagens system har tre huvuduppgifter:<br /> <br /> 1. Generera förpackningsinformation till Scanias leverantörer<br /> <br /> 2. Administrera Scanias returemballage<br /> <br /> 3. Registrering av artikelvikt<br /> <br /> Dessa funktioner sköts av systemets olika användare. Förpackningsinformationen skapas och<br /> <br /> administreras av kvalitetsberedarna som finns på inköpsavdelningarna i Södertälje och<br /> <br /> Oskarshamn. Returemballageadministrationen sköts av Scania Partner som har sitt säte i<br /> <br /> Södertälje men som också finns representerade i Falun och Zwolle. Viktregistreringen sker på<br /> <br /> Scanias olika verkstäder där de inköpta artiklarna anländer. Scania i Brasilien, Anger och<br /> <br /> Katrineholm är ej integrerade i SPIS utan kan endast läsa information i systemet.<br /> <br /> Systemet arbetar i stordatormiljö och lagrar information i databaser. Dessa databaser ar i<br /> <br /> Rosam-miljö och används av många av Scanias andra system t. ex. leveransplansystemet.<br /> <br /> Systemet har även några egna databaser som bara används av SPIS.<br /> <br /> Vid studier av andra företags systemlösningar för hantering av förpackningsinformation framkom att det inte finns några standardsystem på marknaden utan alla har utvecklat sina egna lösningar.<br /> <br /> Brister i dagens system består i att alla berörda parter ej är integrerade i systemet. Detta leder till att olika förpackningsinformation kan skickas ut från flera av Scanias produktionsenheter till en och samma leverantör. Systemet kan inte heller hantera flera förpackningslösningar per artikelnummer vilket får till följd att ompackning måste ske hos bland annat Scania i Zwolle och avdelningen för reservdelslogistik. Detta är en både kostsam och kvalitetsnedsättande verksamhet. Systemet är också svårt att använda och det är tidskrävande att administrera förpackningslösningarna till leverantörerna.<br /> <br /> Mitt förslag är att utveckla ett nytt system för hantering av förpackningsinformation. Administration av returemballage och viktregistrering, bör separeras från ett nytt system, något som i praktiken redan håller på att ske. Det nya systemet bör innefatta samtliga av Scanias produktionsenheter och även avdelningen för reservdelslogistik. För att få en enhetlig information till leverantörerna. Det nya systemet skall även kunna behandla olika förpackningslösningar per artikelnummer för att tillgodose olika användares behov och undvika kostsam ompackning.<br /> <br /> Förpackningsberedarna skall bereda ett antal olika förpackningslösningar beroende på hur många produktionsenheter artikeln skall levereras till. De olika förpackningslösningarna skall vara med i inköparens anbudsförfarande så att priset på de olika lösningarna kommer med i förhandlingarna från början. Målet ar en enhetlig förpackningslösning oavsett var artikeln används. Men det finns undantag där flera lösningar är önskvärda och det måste systemet kunna hantera.<br /> <br /> Slutsatsen är att ett nytt system behöver utvecklas men att behovet ej är akut. Utvecklingen bör invänta införandet av det nya leveransplansystemet, Material Control. Genom det nya systemet kommer Scanias leveransplaner att stämma bättre, något som leverantörerna framhåller som ett krav för att ha möjlighet att leverera i olika förpackningar.<br /> <br /> Mitt förslag är att ett nytt system skall utvecklas med hjälp av Intranät teknik. Kompetensen inom Scania på detta område är idag begränsad. Tekniken är ny och utvecklingen sker snabbt. Detta talar för att utvecklingsarbetet kan skjutas något på framtiden. En projektiedare bör tillsättas för att driva projektet vidare. https://lup.lub.lu.se/student-papers/record/1318490/file/1318491.TIF image/tiff 840998 no 1996 swe scania packaging packaging information Technological sciences Teknik Technology and Engineering 1318490 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318494 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Peitz author Niklas Magnusson author Mats Johnsson supervisor Packaging Logistics v1000238 department Volvo Motor AB i Skövde tillverkar motorer till Volvos personbilar. Tillverkningen av motorerna är till stora delar automatiserad. Den planerade produktionsökningen kräver att monteringsfabrikens kapacitet ökas från 370 000 till 450 000 stycken motorer per år, vilket dagens monteringssystem inte klarar av.<br /> <br /> Dagens monteringssystem för yttre komponenter är uppdelad i ett antal monteringsmoduler. Tack vare hög flexibilitet klarar monteringsmodulerna att hantera både 4-, 5-, och 6-cylindriga motorer. Volvo Processutvekling Skövde arbetar med att ta fram ett monteringssystem med erforderlig kapacitet. Förslaget bygger på en sammanslagning av de idag befintliga monteringsmodulerna till 4 stycken ?stormoduler?. Två stormoduler skall montera 5-cylindriga motorer, en stormodul skall montera 4-cylindriga motorer och slutligen en stormodul för 6-cylindriga motorer.<br /> <br /> 1 detta examensarbete kommer vi att redovisa hur händelsestyrd simulering använts för att testa, modifiera samt analysera föreslaget monteringssystem.<br /> <br /> De frågor vi behandlat har berört kapacitetskravet på 450 000 monterade motorer per år, behovet av antalet förarlösa truckar, flaskhalsanalys samt jämförelser mellan olika systemförslag. Målet med examensarbetet har varit att fastställa om det nya monteringssystemet för den yttre monteringen kommer att fungera samt att skapa en tredimensionell datormodell över det föreslagna monteringssystemet.<br /> <br /> Metodiken grundar sig på ett systematiskt tillvägagångssätt för att successivt verifiera och validera den konstruerade simuleringsmodellen till en rättvisande modell av verkligheten. Simuleringsförsöken är genomförda efter en fastställd strategi för att ge kvalitativt analysunderlag. Indatan till simuleringsmodellen är framtagen i nära samverkan med personal från Volvo. På grund av att det nya systemet ännu inte existerar bygger indatan till största del på erfarenhet av liknande system och kännedom om befintliga systemet.<br /> <br /> Simuleringsförsöken har koncentrerats till två olika varianter av det föreslagna monteringssystemet, systemförslag 1 och 2. Resultaten från simuleringsförsöken visar att föreslaget monteringssystem klarar kapacitetskravet. Systemförslag 1 har en överkapacitet på 6 till 9 % beroende på bemanning och systemförslag 2 får en överkapacitet på 4 till 5 % beroende på bemanning. Systemets flaskhals i de båda systemförslagen är belägen i stormodulerna. Ur ett materialflödes perspektiv har systemförslag 1 klara fördelar i form av att flaskhalsen ligger tidigt i stormodulen vilket reducerar antalet produkter i arbete. Med hänsyn tagen till koncentration av material och bemanningsbehov är systemförslag 2 att föredra.<br /> <br /> Under analysen av simuleringsresultaten har nya frågor uppkommit med avseende på de olika systemförslagen. Då tiden ej medgivit fortsatt simulering och analys av systemet rekommenderar vi Volvo att fortsätta analysen av det nya monteringssystemet för den yttre monteringen inom följande områden: störningsanalys i modulera, hur systemet reagerar vid varierande produktionstakt samt analys av väntetider i provnings- och efterkontrollstationerna.<br /> <br /> Med de resultat och analyser som presenteras i examensarbetet, kompletterat med föreslagna analyser, menar vi att Volvo kommer att få en komplett bild av hur det nya monteringssystemet kommer att fungera. https://lup.lub.lu.se/student-papers/record/1318494/file/1318495.TIF image/tiff 1252798 no 1999 swe Flödessimulering Monteringssystem Flaskhals Technological sciences Teknik Technology and Engineering 1318494 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318499 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Ottosson author Conny Andersson author Mats Johnsson supervisor Packaging Logistics v1000238 department Frigoscandia Freezer AB have seen themselves as an entrepreneur company for a long time, but have lately begun to realise that they have to go against a more administrative era. With that insight they have begun to examine their enterprise in order to achieve this. The division Team Spare Parts has started a project with the intention of checking-up the inventory management, and improving it for the future. To get support for this and other point of views, they decided to let us do our exam thesis as a part of the project.<br /> <br /> The first part of the thesis deals with the appropriate inventory theory. All calculations in the other parts of the thesis have been based upon this. It is well known and reliable theoretic discussions that have been brought up. We have made efforts to write examples that will make the theory easier to understand.<br /> <br /> All items cannot be treated in the same way, but similar can. With this background the stock items were categorised. We revised the recommendations from the company and came up with four groups, A, G, K and L. The A group is defined with an ABC-analysis on the volume value. The analysis showed that 10% of the total amount of stock items, which is about 850, corresponds to 80% of the company&#39;s purchase to stock. The G group corresponds to guarantee and is stock items because the customers get a guarantee on the installations. The K group corresponds to critical items. They have to be stock items because they are of vital importance for the function in the installations. The fourth is the L group and it consists of stock items because it offers the customers good service at a cheap price for the company. For every group there are suggestions of how they can be controlled and followed up. When categorising the items we presumed that the A group was the most important. Because of this, the major part of the thesis focuses on this one.<br /> <br /> To test our assumption that the A group is the most important, we did an analysis on 15 items within the group. The choice of items was made with the purpose of showing a broad variation, considering withdraw frequency, price and yearly consumption. The aim was also to test if the theory accounted for can be used. The analysis was done in the form of simulations with historic data as a parameter. This was later compared with the origin inventory growth. The group of 15 items represents 24% of the total volume value and almost as much of the capital tide-up. It is therefore a great section that has been examined - in economic variables. The analysis and simulations supported our assumption that the A group is the most important, and that there are great potentials in improving it. The total capital tide-up could in the simulations be reduced with 40% or 900 000 SEK, compared to the origin. We were also able to prove that the theory could be applied to the A group.<br /> <br /> When working with the 15 items we used different key variables and parameters. Our opinion is that they give a good picture of the inventory management. Today the company has not followed-up any of the recommendations we presented in our analysis, which we suggest they should do. The inventory turnover rate, capital tide-up, average inventory level and customer service level are of particular importance. https://lup.lub.lu.se/student-papers/record/1318499/file/1318500.TIF image/tiff 1002392 no 1997 swe lagerstyrning Frigoscandia Freezer AB inventory turnover Technological sciences Teknik Technology and Engineering 1318499 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318504 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Fredrik Danielsen author Mats Johnsson supervisor Packaging Logistics v1000238 department This thesis is divided into two parts. Part one contains a general description of the flexographic printingtechnique. Part two contains a more detailed investigation in the areas substrate, inktransfer and trends, which are only briefly commented in part one, and conclusions and comments.<br /> <br /> The major problem concerning substrate is washboard. This phenomena can be limited if one can control and minimize the amount of glue applied in the single- and double facer, use high surface weight on liner, use low surfaceweight on fluting and control the humidity during the conditioning of the corrugated board. Corrugated board with a smooth surface radically increases the quality in print. A certain amount washboardphenomena can be compensated in the printingprocess with soft printingplates.<br /> <br /> A common trend in the inktransferarea is to decrease and control the amount of transferred ink to the substrate. This can be done by using chamberdoctorblades, aniloxrolls with more cells per inch, cells with less deapth and custom made printingplates. The more cells per inch the bigger is the problem to keep the rolls dean. Hence the washout process have to be more sophisticated and a system for controlling the rolls is needed.<br /> <br /> The trend among the inkmanufacturers are deliverances of ink with a higher content of pigments. lnks with a high content of pigments are able to cover a fulltone print in spite of the less amount ink transferred to the substrate. The price is higher than conventional inks but since the amount of ink needed for printing is less, the price is not as big disadvantage as one could expect, The most important advantage though, is that the printer at the printingmachine can vary the properties of the ink much more for inks with a high content of pigments than with conventional inks.<br /> <br /> Stochastic screening seems to be very interesting for the flexo printing business. The major advantages with stochastic screening are the possibility to print a number of colours without risking any moiré, greater tolerance for registerproblems and possibility to print very fine details. The critical area for stochastic screening in the flexo printing business will probably be to keep very small dots on the photopolymer printingplates during exposure of UV-light and to minimize the dot gain during printing, https://lup.lub.lu.se/student-papers/record/1318504/file/1318505.TIF image/tiff 856210 no 1995 swe flexografi wellpapp tryck Technological sciences Teknik Technology and Engineering 1318504 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318508 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Bergstedt author Joakim Andersson author Mats Johnsson supervisor Packaging Logistics v1000238 department Denna rapport behandlar förändringar och konsekvenser vid eliminering av ett färdigvarulager vilket idag är placerat hos Tetra Pak.<br /> <br /> De utredningar som gjorts i rapporten ingår i ett projekt vilket drivs parallellt med vårt examensarbete. Projektets, som är benämnt ?projekt lagerflytt?, syfte är att effektivisera och spara resurser i flödet av conveyoravdelningens produkter. Samtidigt som färdigvarulagret elimineras ställs nya krav på leverantörerna:<br /> <br /> ? Sänkning av leveranstiden från tre till två veckor<br /> <br /> ? Omfördelning av det största bansystemet<br /> <br /> ? Dagliga leveranser<br /> <br /> ? Kundorderstyrd tillverkning<br /> <br /> Dessa nya krav och förändringarna far följder på det nuvarande flödet vilket kommer att förändras i olika grad, utredning av konsekvenserna måste därför göras.<br /> <br /> 1 vårt examensarbete har vi valt att analysera följande konsekvenser i ?projekt lagerflytt?.<br /> <br /> ? Förändringar i lagerkostnad och personal resursbehov i Lager 50<br /> <br /> ? Förändringar i emballagehantering och dess kostnader<br /> <br /> ? Förändringar i transporter<br /> <br /> ? Sammanlagda kostnader för Conveyor flödet inklusive förändringar i produktpriser<br /> <br /> ? Utvärdering av lager hos Fredrikson Verkstads AB jämfört med Andrénverken AB respektive hos båda<br /> <br /> ? Utredning av vilka produkter som skall tillverkas hos flera leverantörer<br /> <br /> ? Analys av risker och flaskhalsar i det totala conveyor flödet vilket flytten kan ge upphov till<br /> <br /> ? Utredning vad 2 veckors leveranstid innebär<br /> <br /> ? Analys av leverantörernas eventuella kostnadsökningar<br /> <br /> ? BGT:s framtida roll som underleverantör<br /> <br /> För att iii en klar bild över verksamheten och flödet av produkter har vi gjort en nulägesanalys över conveyoravdelningen och delar av Tetra Pak Distribution vilka ingår i conveyorflödet. Leverantörerna har också besökts och deras produktionsapparat har analyserats för att kunna bedöma deras möjligheter att anpassa sig till det nya flödet och de krav som ställts på dem. Nulägesanalysen bygger på intervjuer av personal på Tetra Pak och hos leverantörerna samt eget sökande av information på Tetra Pak. Genom analys av insamlad information och egna beräkningar och bedömningar har vi sedan fått fram resultat och slutsatser till den frågeställning vi formulerat. De viktigaste resultaten är den framtida kostnadsbilden där resultaten kan redovisas i kronor och ören och bedömningar kan göras huruvida leverantörerna får utrymme för prishöjningar. Enligt våra beräkningar och bedömningar kommer framtida besparingar, vilka uppgår till ca XX Mkr., att ge ökad marginal med ca XX % för conveyoravdelningen. Detta innebär att leverantörerna totalt kan öka sina priser motsvarande utan att den totala kostnaden ökar. Kan leverantörernas prisökningar på produkterna hållas nere ökar således Tetra Paks marginaler motsvarande vilket naturligtvis bör eftersträvas för ökad lönsamhet. De förkortningar som används i rapporten finns förklarade i bilaga 10. https://lup.lub.lu.se/student-papers/record/1318508/file/1318509.TIF image/tiff 1441472 no 1998 swe lagerflytt konsekvensanalys Tetra Pak Technological sciences Teknik Technology and Engineering 1318508 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1998-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318513 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dan Gustafsson author Tommy Berggren author Mats Johnsson supervisor Packaging Logistics v1000238 department På senare år har lagerstyrning blivit allt mer aktuellt inom företagen. Detta är en följd av att kostnaderna for lagerhållning i högre grad tas hänsyn till i kostnadskalkyler idag Denna vetskap finns även hos Stenqvist AB som undrar om det finns möjlighet till effektiviseringar av företagets styrning av lagernivåer och lagerlokaler Stenqvist använder sig av två ordertyper för lagerproduktion, lagerorder och blockorder. Företaget önskar få reda på om dessa typer är effektiva metoder att styra produktionen med. Vidare undrar Stenqvist om orderkvantiteterna som används är optimala. Idag upplevs färdigvarulagret vara fullt och företaget går i funderingar att bygga nytt lager eller om mojligt utnyttja nuvarande lokal bättre for att utöka lagringskapaciteten.<br /> <br /> Efter att ha studerat försäljningsstatistik och historiska lagernivåer för lagerorder försökte vi ur kända styrmetoder finna lämpligt sätt att styra denna typen av produktion. På grund av sin enkelhet, både vad galler uppbyggnad och tillämpning, kom vi till slutsatsen att ett bestälningspunktssystem är det mest lämpliga för Stenqvist vilket i princip används idag på företaget. För att vidare bestämma orderkvantiteter försökte vi till att börja med använda oss av Wilsonformeln med ändlig produktionshastighet, med de inskränkningar det för med sig. För att kunna använda sig av denna metod behövs en kostnad för att lagerhålla produkter. Vi fördelade därför de kostnader som kan förknippas med lagret på det totala, genomsnittliga lagervärdet. Därmed erhölls ett fördelningstal, lagerränta, som fördelar<br /> <br /> lagerhållningskostnader proportionellt till produkternas värde. Då hänsyn till säkerhetslagret ej tas vid bestämning av orderkvantitet enligt Wilsonmetoden försökte vi därefter utveckla modellen till att även beakta säkerhetslagrets påverkan. Vi fann dock att denna modell blev komplicerad att praktiskt använda sig av och även om resultatet blev något bättre än för Wilsonformeln anser vi att det ej är värt besväret för företaget att utnyttja metoden. Det som ytterligare behövs i ett beställningspunktssystem är beställningspunkten. Denna erhölls genom att bestämma ett säkerhetslager och därefter summera detta värde och den genomsnittliga efterfrågan under ledtiden.<br /> <br /> För att få en uppfattning om hur lagernivåerna blivit med de system vi valt, utfördes enkla simuleringar med historisk försäljning som indata. På detta sätt kunde vi jämföra nuvarande systems effekt på lagernivåerna med de av oss föreslagna metoderna.<br /> <br /> Resultatet av simuleringarna visade att antalet omställningar hade ökats markant samtidigt som lagernivåerna sjunkit för flertalet av de studerade artiklarna. Vi anser att företaget genom att använda sig av föreslagna system erhåller ett enkelt styrsystem samtidigt som lagernivåerna för ett flertal artiklar kan minskas. Ett ökat antal omställningar kräver överkapacitet i produktionen varför en manuell bedömning av orderkvantiteter bör vägas samman med den teoretiskt beräknade.<br /> <br /> För att få en bild av hur blockorder fungerar studerades försäljningsdata och utfallet i förhållande till de för ordern uppgjorda prognoserna. Vi konstaterade att det finns stora skillnader mellan blockorderna, både vad gäller efterfrågefördelning och hur avropen följer prognosen Vi anser det darför omöjligt att finna en allmängiltig metod for styrning av dessa order. Slutsatsen är därför att blockorderartiklar med jämn efterfrågan och tillgång på historiska data bör styras med hjälp av ett beställningspunktssystem, d.v.s. i princip överföras till lagerorder. För artiklar med ett fåtal avrop under längre perioder anser vi företaget bör överväga att styra som tillverkningsorder, d.v.s. leverera hela den beställda volymen vid ett tillfälle. För de blockorderartiklar med stora variationer i efterfrågan föreslår vi att planering av produktion utförs med hjälp av Wagner-Whitin algoritmen vid blockorderns upprättande och därefter kontinuerliga omplaneringar under orderns löptid. Denna styrmetod appliceras lämpligen även på produkter med säsongsvariationer. Blockorder med fasta avrop bör eftersträvas eftersom produktionen för dessa blir enkel att styra med Wagner-Whitin metoden. Som vi ser det bygger hela blockorderkonceptet på förtroendefullt samarbete med kunderna. Detta medför att Stenqvist måste redovisa sina lagernivåer och orderkvantiteter öppet för att få en ökad förståelse, för problem i samband med produktion och lagerhållning, från kunderna. Avslutningsvis bör företaget teckna korta avtal med nya kunder p.g.a. osäkerheten.<br /> <br /> Lagringsmetoden som används på Stenqvist är idag i huvudsak djupstapling i ställage. Denna metod ger, enligt de mätningar vi genomförde, ett relativt lågt utnyttjande av pallplatserna. För att erhålla ett bättre utnyttjande försökte vi finna alternativa lagerlayouter. Avsikten var att använda enkelpallställ i kombination med truckdatorsystem och på så sätt erhålla ökat antal effektiva pallplatser. Vid bibehållet asfaltgolv i lagerlokalen begränsas möjligheterna då det enda truckalternativet är motviktstruckar, vilka kräver stora gångbredder. Några förbättringar erhölls ej med detta alternativ. Under förutsättning att nytt golv läggs finns möjlighet till att använda smalgångstruckar. En smalgångslayout tillsammans med truckdator skulle däremot ge ett avsevärt tillskott av effektiva pallplatser. https://lup.lub.lu.se/student-papers/record/1318513/file/1318514.TIF image/tiff 885992 no 1995 swe lagerstyrning J.D. Stenqvist AB smalgång Technological sciences Teknik Technology and Engineering 1318513 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318518 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jenny Klevås author Magnus Karlberg author Annika Olsson supervisor Packaging Logistics v1000238 department Projektets syfte är att kartlägga den kylda livsmedelsdistributionen från producent fram<br /> <br /> till butik och belysa framförallt de temperaturrelaterade brister som den är behäftad<br /> <br /> med.<br /> <br /> Kylda livsmedel är beroende av att vistas i och hålla rätt temperatur. Detta för att<br /> <br /> önskad så stor del som möjligt av livsmedelskvaliteten ska bevaras. Idag finns inga<br /> <br /> undersökningar som innefattar alla led i kylkedjan och som lyfter fram vilka<br /> <br /> temperaturbrister som finns, var de finns och vilka problem de ger upphov till. Varje led<br /> <br /> tittar endast på sitt flöde och risk för suboptimering uppstår.<br /> <br /> Vår kartläggning baseras på intervjuer med utvalda aktörer i samtliga led och andra<br /> <br /> personer med erfarenheter och kunskaper inom området. Vi har även tagit del av<br /> <br /> rapporter som gjorts och artiklar som skrivits inom kylkedjeproblematik. Då vi inte har<br /> <br /> någon livsmedelsteknisk bakgrund har även tid ägnats åt att förvärva<br /> <br /> livsmedelskunskap.<br /> <br /> En stor problematik ligger i samtransporterna där man tvingas till<br /> <br /> kompromisstemperaturer för att få god fyllnadsgrad i bilarna. Temperaturkrav ställs mot<br /> <br /> transportekonomi.<br /> <br /> En låg utbildningsnivå präglar hela branschen. Erfarenhetsbaserad kunskap sätts på prov<br /> <br /> när ett nytt produktsortiment med nya hanteringskrav växer fram. Nytänkande och<br /> <br /> utbildning krävs för att komma till insikt om varför gamla mönster behöver brytas.<br /> <br /> Känsligare produkter ställer högre krav på obruten kylkedja<br /> <br /> Idag förlitar man sig på att efterföljande led sköter sig och gör de kontroller som krävs.<br /> <br /> Avsaknad av reklamationer ses som bevis på en obruten kylkedja. Ett sådant<br /> <br /> resonemang är inte hållbart i längden då temperaturkontroller inte görs i tillräckligt stor<br /> <br /> utsträckning. För lite resurser hos de offentliga kontrollorganen gör att tillsynen inte<br /> <br /> sker i den omfattning som krävs. Det gör att ansvaret till stor del ligger i branschens<br /> <br /> händer, som ofta saknar förståelse/kunskap och resurser (tid/pengar) för genomförande.<br /> <br /> En attitydförändring till ett mer proaktivt kvalitetstänkande är därför nödvändig för att<br /> <br /> säkra kylkedjan.<br /> <br /> Ingen aktör har överblick över hela kylkedjan och avsaknad av kommunikation mellan<br /> <br /> leden gör att helhetssynen går förlorad och risken för felhantering ökar.<br /> <br /> Ingen vet hur stort det totala svinnet i kylkedjan är. Det är heller ingen som vet var i<br /> <br /> kedjan orsaken till svinnet ligger. Felhantering i första ledet kan leda till svinn i sista<br /> <br /> ledet. Förutom svinnet finns även kvalitetsförsämringar som inte alltid upptäcks. Först<br /> <br /> vid allvarlig matförgiftning eller tydlig sensorisk försämring kan felhantering upptäckas<br /> <br /> och då är det svårt, för att inte säga omöjligt, att veta var problemet uppstod och<br /> <br /> följaktligen hur man ska åtgärda det. Branschen behöver se över kylkedjan i<br /> <br /> förebyggande syfte samt komma till insikt om att stora pengar finns att spara genom att<br /> <br /> kvalitetssäkra hela flödet. https://lup.lub.lu.se/student-papers/record/1318518/file/1318519.pdf application/pdf 628071 no 2002 swe Kylkedja Livsmedel Distribution Technological sciences Teknik Technology and Engineering 1318518 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318523 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Rutger Carlheim-Gyllenskiöld author Jens Rangefelt author Mazen Saghir supervisor Packaging Logistics v1000238 department In 1998 Bergendahl &amp; Son AB, as the sole owner alongside with BTL as a partner, created Matomera. Matomera was unique in Sweden in its concept of selling groceries only on the Internet with no supporting physical store. Instead they used a dedicated warehouse especially designed for this purpose. In B2C e-commerce the buying decisions and the face-to-face communication between consumers and companies are separated in time or excluded. Therefore the possibility to interact with and to influence consumers is often restrained to the website and call-centres. Along with this there is an added responsibility of picking and delivering the goods to consumers. When selling groceries on the Internet there is a lack of knowledge concerning consumer response to websites and consumer requirements on home deliveries. Therefore logistics concerning home deliveries is an important part in fulfilling consumer demands as the responsibility of picking and delivering has been transferred from the consumer to the grocer. In the case of Matomera, the idea was to deliver groceries home to consumers without any additional distribution fees. However, implementing home deliveries without additional distribution fees for the consumer failed, and despite award winning websites and marketing campaigns Matomera was taken out of business in March 2001.<br /> <br /> In logistical terms the activities that consumers perform when buying groceries in a traditional way, are picking and bringing the groceries home. In order to fulfil these activities there are many logistical solutions of distributing groceries to consumers and therefore meeting the consumer requirements. The purpose of this master thesis is to describe the chosen logistical solution of Matomera, the information, financial and physical flow, and how these elements relate to each other. The objective is also to analyse the logistical solution in the aspect of fulfilling the requirements of the consumers. The main questions to be answered in this thesis are therefore:<br /> <br /> How did Matomera consider the requirements of the consumers in order to create a logistical solution that would satisfy the chosen consumer segment and how did the logistical solution of Matomera fulfil these requirements?<br /> <br /> How did the logistical solution of Matomera look like and what kind of logistical problems did Matomera face?<br /> <br /> We have chosen to do a case study on Matomera for this master thesis. Since the company no longer exists all facts are based mainly on interviews as no first hand observations could be made. In the case description we begin with a brief presentation of the Swedish grocery industry, continuing with some theories about e-commerce, logistics, and different distribution models. Further, the description of Matomera is based on both the company&#39;s functions and the processes connected to the company. When analysing the case, eight aspects connected to the consumer demands put on e-grocery solutions serve as starting points.<br /> <br /> Matomera&#39;s consumers executed the orders through the website the day before delivery and the orders were sent to the warehouse to be picked. The fresh food was delivered daily to Matomera from the suppliers in consumer order sizes. The products were assembled and stored in boxes, which could maintain the preferred temperature. The boxes were picked up at Matomera by the drivers and delivered within allotted areas and certain delivery time windows. The groceries could be paid for with credit card similar to an ordinary store. After analysing the case we have identified several important aspects concerning consumer demands versus logistical efficiency.<br /> <br /> The logistical solution of Matomera provided an outstanding possibility to sell the freshest groceries. Consumers had the opportunity to buy groceries that were fresh in every delivery, unlike groceries bought in an ordinary store. In this case, the logistics enabled the company to serve their consumers with special qualities. Quality in having the groceries delivered home, and quality in receiving the freshest groceries. It might be possible to combine high quality products,<br /> <br /> ii<br /> <br /> i.e. daily deliveries with same day deliveries to consumers, but in order to get a simplified and cost efficient logistical solution, it is necessary to prioritise what aspect is the most important for the consumer.<br /> <br /> The attended deliveries had several advantages such as the possibility to actually meet consumers and offer the added service of paying directly with credit card. The logistical consequence was that delivery time windows had to be managed, and the economical consequence was higher variables costs of the deliveries compared to unattended deliveries. Regardless the use of unattended or attended deliveries the packaging system plays an important part in keeping the groceries in good condition. Therefore the e-grocer has to take the aspect of using an adequate packaging system under consideration. Matomera managed to develop both a cheap and efficient packaging system that supported the whole logistical solution of Matomera.<br /> <br /> The use of two-hour delivery time windows improved the efficiency in the logistical system compared to one-hour delivery time windows, but did not worsen the conditions of consumers to any great extent. The combination of home and company deliveries improved both the logistical efficiency and the conditions for consumers.<br /> <br /> By using both a delivery fee and a reached order sum before offering free deliveries gives the possibility to affect both buying behaviour and the delivery costs per order for the e-grocer. The difficulty is to find a balance that will not scare the consumers away. However, a good balance will keep the preferred consumer segment and decrease the delivery costs for the e-grocer. Offering payment methods that resemble the ones used in ordinary stores is probably necessary in the beginning, in order to attract consumers to the e-grocer. However, as consumers become more used to shop on the Internet, payment methods that do not affect the deliveries in a negative way should be used.<br /> <br /> The use of a dedicated warehouse is the preferred solution in terms of logistical efficiency, but requires a large consumer stock in order to compensate for the high fixed costs. This was also significant to Matomera, which obtained a high logistical efficiency within the dedicated warehouse, but had a problem reaching the break-even point regarding number of consumers. Therefore, the picking should have been performed in a store until a sufficient consumer stock was obtained.<br /> <br /> To have a high logistical efficiency within the warehouse is crucial in keeping the logistical costs on a low level. With the restraints of using an existing building, Matomera optimised the usage of the building by computer simulating different layout alternatives, and continuously improve the picking routines together with the picking staff.<br /> <br /> The aspects important for consumers are that the orders are accurate and that the assortment is fulfilling their needs. Maintaining high delivery accuracy is important as it builds up a confidence among consumers. As it is easier to blame someone else, the consumers probably has greater demands on the e-grocers than what would be the case if they forgot to pick the item or pick the wrong item themselves.<br /> <br /> Matomera created a website and a Service-centre that were very much appreciated by the consumers. Although the Service-centre was very much appreciated, the function could have been used for additional purposes such as offering services that could inspire consumers. This, similar to the website, was used to simplify the logistics, i.e. giving instructions to the driver.<br /> <br /> Matomera developed its concept all the time. Thorough pre-studies had been done in order to determine what segments that would use home shopping and what segments that would be most iii<br /> <br /> profitable. As the time passed, Matomera gained new knowledge in different areas. As they were one of the first e-grocers they lacked similar companies to compare themselves with, which led to that they learned much by trail and error. This is significant for pioneers. If Matomera had this knowledge from the beginning they could have avoided some of the difficulties that they later confronted. https://lup.lub.lu.se/student-papers/record/1318523/file/1318524.pdf application/pdf 1522444 no 2002 eng Matomera B2C e-commerce Technological sciences Teknik Technology and Engineering 1318523 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318528 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Emma Karin Gustafsson author Gunilla Jönson supervisor Packaging Logistics v1000238 department The logistics concepts at BMW&#39;s engine factory in Munich are continuously revised, in order to optimise the logistics process. The objective of this thesis work is to study if it would be profitable to use an individual, reusable package for transporting and handling engine wiring harnesses in order to prevent damages.<br /> <br /> Approach<br /> <br /> The work was divided into different stages. First the flow of the harnesses was traced. This was followed by a mapping of the conditions, e.g. capacity, number of variants and safety policy. After analysing the gathered information, a storage and handling concept was prepared. Finally, the whole concept was analysed from the view of business economics.<br /> <br /> Evaluated Concept<br /> <br /> The concept is based on having a reusable system consisting of standardised boxes, Euro-pallets and covers. The aim is to have a unit that could be unbroken as long as possible in the logistics chain.<br /> <br /> Based on forecasts, the circulating amounts of boxes, pallets and covers are calculated. The variants are classified as high- and low-runners, according to their frequency.<br /> <br /> The storage and handling concept is founded on live storage. The buffer stock and the commission station would be integrated, which means a beneficial reduction in handling. Another advantage is that it would be possible to easily work after the FIFO-principle.<br /> <br /> ln the redesigned concept, the conveyor station would have a central position. It would be surrounded by roller conveyor facilities for pallets (high-runners) and for individual boxes (low-runners). The store is dimensioned to accommodate about 4600 harnesses, which covers three days? consumption.<br /> <br /> The existing and the proposed concept are compared from an economic point of view, The new concept would involve high investment costs in handling and storage facilities. The hereby obtainable decrease of damages and simplification of handling routines would bring savings for BMW. On the other hand, increased costs for the supplier would lead to charges for extra handling, which nearly equals the savings.<br /> <br /> The result from the economic calculations shows that it is not profitable to introduce a new handling concept based on the use of an individual package for the engine wiring harnesses. Therefore the recommendation to the Engine and Chassis Division of BMW AG is to not implement the evaluated system under current conditions. However, the concept should be borne in mind since it has desirable advantages. This thesis work has formed a detailed idea of the situation and could be used for further attempts to improve the logistics concept For the engine wiring harnesses. https://lup.lub.lu.se/student-papers/record/1318528/file/1318529.TIF image/tiff 821990 no 1996 eng BMW engine wiring harness packaging Technological sciences Teknik Technology and Engineering 1318528 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318532 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mathias Lindsjö author Johan Månsson author Gunilla Jönson supervisor Packaging Logistics v1000238 department 1 detta examensarbete har vi arbetat tillsammans med ICA, Kungsörnen, Åkerlund &amp; Rausing, AssiDomän Förenade Weil och StoraEnso. Målet för examensarbetet har varit att identifiera vilka krav som ställs på en förpackning i en försörjningskedja, samt att identifiera de brister som medfört att utveckling av en generell modell för framtagning av förpackningslösningar ej hittills varit möjlig.<br /> <br /> En förpacknings främsta uppgifter är att den ska skydda den förpackade produkten, underlätta distributionen samt att informera. Under sin livstid utsätts förpackningen för en mängd påfrestningar. Förpackningen ska klara av lagring, transport, hantering samt att den ska vara säljande i butiken, och i slutändan bidra till en god ekonomi. En förpackning som är skadad tilltalar inte konsumenten, som därför inte köper den. De förpackningar som vi behandlar i arbetet är sekundärförpackningar i weil, och primärförpackningar bestående av kartong och / eller flexibla material.<br /> <br /> Vi har identifierat de krav som olika parterna i försörjningskedjan ställer på förpackningar vid tillverkning, distribution och försäljning av en produkt. Dessa krav behandlar allt från vilken typ av förpackningsmaskin som ska användas, till hur produkten kommer att hanteras i butik och vad konsumenterna anser vara viktigt.<br /> <br /> För att kunna sänka kostnader för förpackningsutveckling och effektivisera utvecklingsarbetet, startade de fem företagen ett projekt för ungefär två år sedan. Målet var detsamma då som nu. 1 denna typ av arbeten är viktigt att skapa ett förtroende inom gruppen och att deltagarna har samma målsättning. Våra kontakter med de deltagande företagen visar att de inte haft samma avsikt med sitt deltagande i projektet. Initialt har företagen varit öppna med att delta med egen kunskap då en storkund, ICA, efterfrågat projektet. Men genomförandet av målsättningen har dock inte haft samma prioritet. Företagen vill inte ge information om en ny produkt, med motiveringen att informationsläckage kan uppstå. Det är anledningen till att primär- och sekundärförpackningstillverkarna kontaktas i ett sent skede. När sedan kontakt med förpackningstillverkaren tas, sker inget informationsutbyte mellan de olika förpackningstillverkarna respektive mellan förpackningstillverkarna och materialtillverkare. Alla förpackningsföretag försöker att optimera lösningen mot produkttillverkaren, som förutom egna produktions- och marknadsföringskrav bör ha kunskap om kund och försäljningskrav mot dagligvaruindustrin. Bristen på gemensam kommunikation och information ställer mycket höga krav på produkttillverkarens kunskap om förpackningar, logistik, marknadsföring och ekonomi. Den gemensamma kunskapen i kedjan utnyttjas inte i den mån det finns information hos respektive företag.<br /> <br /> Vår bedömning är, för optimering av en förpackningslösning krävs kontakt mellan primär och sekundärförpackningstillverkare, och god kunskap om logistik och distributionssystem. Tydliga direktiv om vad som ska optimeras ges av produkttillverkaren. Det kan t ex vara materialutnyttjande eller förpackningslösningens pris som ska optimeras. Förpackningstillverkarna bör, i samarbete med distributörer, utveckla definitioner, provningsmetoder och kravnivåer för parametrarna greppstyvhet, staplingsstyrka och kompressionsstyrka. Detta för att ange verkliga värden på dessa parametrar. Produkttillverkaren ska dessutom ange produktens vikt och volym samt hur produkten är tänkt att säljas i butik. 1 vissa fall ska produkten kanske plockas upp ur sekundärförpackningen i butiken, och i andra fall ska endast en del av sekundärförpackningen<br /> <br /> avlägsnas. 1 det andra fallet är det viktigt att designen på de båda förpackningarna är överensstämmande. Genom att utveckla kravspecifikationer och konstruktioner kan produkttillverkaren lämna information angående önskad förpackningslösning utan att behöva beskriva den specifika produkten och därmed eliminera eventuella informationsproblem.<br /> <br /> Vi anser även att en gemensam databas kan skapa förutsättningar för ett bättre samarbete. 1 denna databas ska parterna i försörjningskedjan f information om förpackningar som fungerar bra respektive mindre bra i flödet. Då kan samtliga utvärdera brister i kedjan. Om en förpackning inte fungerar kan det bero på flera orsaker och genom att använda en databas effektiviseras arbetet. https://lup.lub.lu.se/student-papers/record/1318532/file/1318533.TIF image/tiff 864350 no 1999 swe försörjningskedja förpackning effektivisering Technological sciences Teknik Technology and Engineering 1318532 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318537 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sofia Lexéus author Erika Wickström author Mats Johnsson supervisor Packaging Logistics v1000238 department Ovako Ajax me, in York, South Carolina, USA manufactures seamless steel rings. The rings are made from blocks, which are heated, pressed, punched and then rolled to desired size and shape.<br /> <br /> Due to tougher competition on the seamless steel ring market, it is necessary to know the total production time for an order of specific rings, in order to be able to price the rings correctly and plan the production as efficiently as possible. This project establishes a model that predicts the total production time per order on one of the ring rolling lines. This general model is presented below.<br /> <br /> = n(30 + f31*CE + r32*Diameter Growth + 33* Block Weight) + S<br /> <br /> = Estimated value of the total production time per order<br /> <br /> n = Number of pieces in the order<br /> <br /> [3,, = Estimated coefficients<br /> <br /> 5 = Non productive time (set up time, adjustment time and<br /> <br /> down time)<br /> <br /> CE, Diameter Growth, Block Weight are product variables.<br /> <br /> Knowledge of the type of rings in the order also implies knowledge of the product variables. All ring types manufactured on the ring rolling line, have been divided into groups. Each ring group has its own specific set of values on the estimated coefficients and the non productive time. When it is known which ring group the rings in the order belong to, it is possible to calculate the total production time for the order. Through discussions and an Ishilcawa survey, the most significant product variables for the total production time were identified. The coefficients, [3, were established through linear regression analyses, based on data from production logs from 1992. The non productive times, 5, were analyzed separately and are in the models expressed by a mean and a standard deviation.<br /> <br /> Despite the great variance in the measured variables, we believe the result is a useful guideline for the company. During our research, some interesting facts regarding production flow were revealed. The product variable that affects the total production time the most is block weight. The induction heaters usually turned out to be bottlenecks, although they were designed not to be. https://lup.lub.lu.se/student-papers/record/1318537/file/2798778.pdf application/pdf 11862033 no 1995 eng time analysis ring mill ishicawa Technological sciences Teknik Technology and Engineering 1318537 2008-06-03T00:00:00+02:00 2012-06-18T16:27:14+02:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318542 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gunilla Nordström author Gunilla Jönson supervisor Fredrik Nilsson supervisor Packaging Logistics v1000238 department Problem: The process of manufacturing corrugated board is a quite complicated process, when it comes to exactly understand what happens in the process. ln order to gain a better understanding and a tool for control of the corrugating process, the machine making the corrugated board, a method that possibly can describe the process is desirable. Throughout the thesis we are thus interested in finding tools that may explain the non4inear relation of the strength of the corrugated board as a function of glue, pressure and heat. To master the non-linearity is a challenging task, since most established models and theories of mode! building assume a linear relationship.<br /> <br /> Purpose: The purpose of the thesis is to find and analyse different methods of understanding and mathematically modelling the process of manufacturing corrugated board,<br /> <br /> Methodology: The thesis has both a quantitative and a qualitative approach, corresponding to the nature of the studied problem. ln brief, this means that quantitative methods are described and discussed against the problem in a qualitative way. Literature studies and interviews have been performed.<br /> <br /> Conclusions: The suggested methods to use are: kemel estimation combined with a higher order non-linear mode!, Volterra series expansions, smooth threshold transfer function, neural networks, and fuzzy logic. https://lup.lub.lu.se/student-papers/record/1318542/file/1318543.TIF image/tiff 916366 no 2001 eng Corrugated board Corrugator, Modelling, Parametric models, Non-parametric models, possibilities of studying loss of fibre strength Technological sciences Teknik Technology and Engineering 1318542 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318547 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Arnfelt author Karl Persson author Mats Johnsson supervisor Packaging Logistics v1000238 department Vår uppgift på Valeo Engine Cooling AB i Linköping har varit att förbättra produktionssystemet genom att utveckla internlogistiken mellan lagret och monteringsstationerna samt sättet att lagra material.<br /> <br /> Valeo är en grupp bildad 1980 genom en fusion av bilkomponenttillverkare. Totalt har Valeo 71500 anställda. De verktyg som Valeo rekommenderar för förbättring av internlogistiken är Small Boxes, Flat Storage och Linefeeder. Användandet av dessa verktyg stödjer de principer som finns inom Toyota Production System och Lean Production.<br /> <br /> Linefeeder är den person som förser monteringsstationerna med material. Han kör omkring med en dragtruck efter vilken han kopplar på olika vagnar. På vagnarna finns material lastat i plastlådor, s.k. small boxes. Tanken med Flat Storage är att hela lagret skall bestå av material lagrat i small boxes vilka skall lagras på en fysiskt låg nivå så att det går att hämta ut material snabbt och ergonomiskt.<br /> <br /> Ett sätt för att sköta den interna materialförsörjningen med ovan nämnda verktyg är att ha en loop för linefeederföraren. Loopen innebär att linefeedertåget körs runt i produktionsanläggningen så att det varje varv passerar alla monteringsstationer och platser där material hämtas. För att ta reda på hur linefeederföraren skall arbeta gjordes tidsstudier vars resultat validerades genom fullskaliga experiment. Ett viktigt resultat av experimenten var insikten om att ett beställningssystem krävs. Vi har kommit fram till att det är mest effektivt att använda ett kanbansystem.<br /> <br /> I lagerlayouten som vi rekommenderar har de allra flesta artiklarna tilldelats utrymme som motsvarar en maxlagernivå på 10 dagars medelförbrukning. Detta är en lagernivå som Valeos materialplanerare anser bör kunna upprätthållas utan att brister uppstår i produktionen. 10 dagars maxlager innebär för flertalet artiklar en lagernivåsänkning jämfört med nuläget. Den nya lagerlayouten kommer förutom lagernivåsänkningen att medföra:<br /> <br /> ? en visuell överblick över vad som finns i lagret<br /> <br /> ? underlättande för linefeederföraren att hitta i lagret<br /> <br /> ? förbättrad ergonomi för all personal som hanterar small boxes<br /> <br /> Genom kommunikation angående de nya sätten att arbeta som linefeederförare och lagerpersonal har också de första stegen i implementeringsarbetet tagits. Vi har förmedlat projektets visioner och försökt skapat förståelse för de teorier som Small Boxes, Flat Storage och Linefeeder bygger på. Dessutom har vi skapat en grupp av ledande personer som borde vara tillräckligt stark för att bekämpa alla slags motståndare till projektet samt introducerat arbetsrotation för linefeedertjänsten.<br /> <br /> Vi har även utarbetat ett antal rekommendationer inför fortsatt implementering av Linefeederprojektet. https://lup.lub.lu.se/student-papers/record/1318547/file/1318548.pdf application/pdf 2078814 no 2003 swe Produktionssystem Small Boxes Flat storage Linefeeder Technological sciences Teknik Technology and Engineering 1318547 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318552 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Bergdahl author Fredrik Liljedahl author Gunilla Jönson supervisor Packaging Logistics v1000238 department Master thesis for Mechanical engineering, at the University of Lund. Incorporated in project Pondora.<br /> <br /> The purpose of this master thesis is to compare the existing one way packaging system with a proposed return crate system not yet available in Sweden. The comparison is focused on packaging handling in the grocery store.<br /> <br /> The purpose is also to investigate how operating return crate systems in Norway and Finland function, identify, the problems they have encountered and survey economic and technical aspects. The knowledge we hereby have acquired was subjectively evaluated in the thesis.<br /> <br /> The Swedish survey has a focus on meat and bread. The surveys in Finland and Norway contain all the products utilizing the studied return crate systems.<br /> <br /> We have surveyed how the handling of transport packages for meat &amp; provision and bread is done in the store. We are giving an account of the differences in the handling between one way corrugated board packages and return crate systems in the store.<br /> <br /> A comparison between the Swedish store managers viewpoints on a proposed return crate system and experiences from Norway and Finland is done in the thesis.<br /> <br /> We find that the handling of the transport packaging takes less time in the store with a return crate than with a corrugated board package.<br /> <br /> Whether there are to be a deposit or not is a great concern for the managers in Sweden. They firmly believe that a deposit will cost them time and money. We believe that the loss of crates will be smaller with a deposit.<br /> <br /> We also find that:<br /> <br /> ? Exposure of products in the return crate is possible<br /> <br /> ? Card board boxes are easier to use for exposure<br /> <br /> ? It is possible to transport more than one kind of products in a return crate<br /> <br /> ? When asked, people generally believed that transport damages were lower with return crates<br /> <br /> ? The personnel in the stores visited were positive towards deliveries in return crates<br /> <br /> ? The stores we have visited would manage the storage of the return crates<br /> <br /> ? The managers do not believe that the return crate system can be used as a marketing tool https://lup.lub.lu.se/student-papers/record/1318552/file/1318553.TIF image/tiff 788036 no 1997 swe livsmedel förpackningar returflöde Technological sciences Teknik Technology and Engineering 1318552 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318557 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Nicklas Ahnelöv author Per Lönnqvist author Gunilla Jönson supervisor Packaging Logistics v1000238 department Summary - Nefab<br /> <br /> The purpose of this thesis is to find business opportunities in South Africa for Nefab&#39;s product<br /> <br /> NEFAB ExPak, The product is suitable for packaging of high-value products that are being<br /> <br /> exported to remote countries.<br /> <br /> Besides a general mapping of South Africa&#39;s export, we have also studied different companies within the vehicle supply industry, telecommunication industry as well as Swedish partners to Nefab in other markets.<br /> <br /> Export from South Africa amounted to 180 billion SEK in the first 10 months in 1996. Over the same period, mechanical appliances and electrical equipment - which are most suitable products for NEFAB ExPak - have enjoyed an export rate of more than 5 billion SEK outside of the African continent.<br /> <br /> By focusing on automotive supply industry and telecommunication industry, products worth over 9 billion SEK are exported from South Africa. Nefab&#39;s Swedish partners located in South Africa do not have a large export flow, but they are well aware of NEFAB ExPak and they have tried to duplicate the plywood box, without any success.<br /> <br /> If Nefab decide to enter the South African market, we have recommended 16 companies, that we believe are potential buyers of NEFAB ExPak.<br /> <br /> Despite the political instability and high crime rate, we believe that Nefab has great opportunities for making substantial profits within the South African market, and that the advantages outweigh the disadvantages.<br /> <br /> Summary - Perstorp Plastic Systems<br /> <br /> The main purpose of our thesis is to find business opportunities for Perstorp Plastic Systems? plastic crates in three sectors in the South African market.<br /> <br /> We have concentrated in the automotive industry, fruit industry as well as the food chain industry.<br /> <br /> ? In the automotive industry, it is obvious that plastic as a packaging solution is increasing. Automotive manufacturers are outsourcing the packaging solutions to companies that are experts.<br /> <br /> ? In the fruit industry many companies are replacing old wooden bins with the more modern plastic crates. If all companies with wooden bins would replace them with plastic crates, the annual need of plastic crates would amount to 187 000.<br /> <br /> ? The five largest companies in the food chain industry have an annual need of 31 500 plastic crates.<br /> <br /> The supplier base of plastic crates to South African companies are dominated by two large companies, namely Megapak and MCG Industries. There is also an increasing interest from foreign companies.<br /> <br /> Because of their good reputation, well developed network in the automotive as well as in the food chain industry, we believe HTK Rent-a-Tainer is the most suitable agent for Perstorp Plastic Systems? products. The plastic crates would also be a complement to HTK&#39;s steel cages.<br /> <br /> Summary - STORA<br /> <br /> The purpose of this thesis is to find business opportunities for STORA in South Africa. The product of interest is the cigarette carton for the tobacco industry and fluting for the fi-uit industry.<br /> <br /> The cigarette industry<br /> <br /> The cigarette industry is very concentrated within only three players:Rembrandt (83 %), United Tobacco Company (12%) and Mastermind (3%). The total number of cigarettes produced in South Africa during 1996 was 40 billion. Total volumes of carton material within the South African cigarette industry stand at 3 600 metric tons for the production of a total of 600 million hinge-lids, and 3 300 metric tons for the production of 135 million display cartons.<br /> <br /> All converting companies work in close co-operation with specific tobacco companies. Printpak Gravure supplies Rembrandt, CTP supplies UTC and Kohler supplies Master Mind.<br /> <br /> The competition amongst the suppliers of carton is not too strong, as there are no South African suppliers, and basically only foreigners such as Metsä-serlä and Westvaco supplying the entire market. Metsä-serlä having 60 % and Westvaco having 40 % of the total market.<br /> <br /> Through Peters Papers, STORA can become Printpaks main supplier, and possibly Rembrandts supplier, by making use of Peters Paper&#39;s network and via relation marketing.<br /> <br /> The fruit industry<br /> <br /> For the 3 863 000 tons of fruit produced in 1996, 169 million cartons were required. The fruit industry is very concentrated within only two companies, Unifruco and Outspan International, who packed 88.1 million cartons during 1996 and used 133 000 tons of liner and 56 000 tons of fluting. They are so large they are able to monopolise negotiations with fluting and liner suppliers, and select only those converting companies offering the best possible price.<br /> <br /> In South Africa the total annual use of linerboard is 386 000 tons and fluting 166 000 tons. The fruit industry is the biggest user of corrugated material in South Africa with an annual consumption of 133 000 tons of liner and 56 000 tons of fluting. Only Outspan International and Unifruco (together) purchase 109 000 tons of packaging material for their 88.1 million cardboard boxes of fruit they export annually.<br /> <br /> Sappi and Mondi are the main producers of paper and board, and the production amounts to 2 million tons, of which 22 % was exported in 1995 and the balance supplied to the domestic market. At the same time, the country imported paper and board totalling 326 000 tons, bringing apparent domestic consumption to about 1 913 000 tons. Only 6 000 tons of liner and 2 000 tons of fluting are imported, a mere 1.0 % of the total consumption. The only virgin fluting that exists in South Africa is the 100 000 tons produced by Mondi from sugarcane, https://lup.lub.lu.se/student-papers/record/1318557/file/1318558.TIF image/tiff 872020 no 1997 eng market research packaging nefab perstorp STORA Technological sciences Teknik Technology and Engineering 1318557 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318562 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dan Sonesson author Mikael Lundström author Gunilla Jönson supervisor Packaging Logistics v1000238 department In order to suggest improvements for the logistics of STARKA, we felt that we had to analyze all the activities which were related to STARKA&#39;s logistic processes. Our primary analysis consisted of a rough but comprehensive description of different functions in the company, and the relationship between them. This was performed by following a typical order through the company to see which functions were affected by the order.<br /> <br /> Since we needed a more thorough view of the company, we decided to analyze the different products STARKA currently has on the market, focusing on economic data such as turn-over, profit, profit margin, deficiency cost and cost of warehousing. We also analyzed the company&#39;s choice of manufacturing processes, organization, warehousing processes, strengths and weaknesses.<br /> <br /> These analyses gave us a clear understanding of the company and its processes. STARKA is a small, function oriented company with a wide range of products. Craftsmanship is an important cornerstone of STARKA&#39;s business. STARKA acts on a mature market, and there is potential for new and unique products. The company is part of a strong business network. Customers and suppliers have strong bonds and good relationships with STARKA. The competitors are well known and have strong positions on the market. STARKA&#39;s strengths are the business network, its competence and a few unique products. STARKA&#39;s weakness is its sensitivity for changes on the market and in the business cycle.<br /> <br /> Roughly, we feel that STARKA&#39;s business is functioning well. There are two areas that need attention, the organization and the warehousing function,<br /> <br /> regarding the organization, the company need to improve its internal communication and define the different areas of responsibility concerning the purchasing of components and products. The company must also strive for standardizing the registration of shipping costs.<br /> <br /> We feel that the best way to improve the internal communication is by effective use of planning tools, such as budgets and forecasts. This would give the company&#39;s different functions a better understanding of each other&#39;s work and ability. Furthermore, it would eliminate the sub optimization that currently is taking place. The warehousing function needs to be more organized and better managed. Useless products must be disposed of and the warehousing area should be divided into 1xed and flexible areas. The implementation wifi take time and is best managed through a combination of clear goals for the warehousing function focusing on both the layout as well as the desired inventory levels, and through continuous improvements from the warehousing personnel.<br /> <br /> Concurrent with the implementation of a new computerized business system focus should be set on making sure that the inventory levels are in correspondence with the actual levels. This will enable the calculation of different economic measurements regarding the inventory which is required in order to see if the company&#39;s goals have been achieved and to determine focus on future improvements. https://lup.lub.lu.se/student-papers/record/1318562/file/1318563.TIF image/tiff 1259240 no 1997 swe logistik småföretag planning tools Technological sciences Teknik Technology and Engineering 1318562 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318567 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ulf Billton author Mats Johnsson supervisor Packaging Logistics v1000238 department Denna rapport behandlar logistiska problem i samband med verksamhet for forskning och utveckling. Analys och utvärdering har skett på enheten för tillverkning av testprodukter på en av Mölnlyckes centrala utvecklingsenheter, APS. Enheten utvecklar fluffprodukter såsom blöjor och trosskydd.<br /> <br /> Arbetets syfte var bl a att utvärdera materialflöde och lagerverksamhet för att definiera olika behov av t ex lager, interna transporter och att föreslå ett nytt lagersystem för en ny anläggning dit verksamheten inom ett halvår skall flytta. Verksamheten är i dagsläget uppdelad på två anläggningar.<br /> <br /> Analysen utgår från en verksamhetsbeskrivning ur vilken en kompletterande problemställning<br /> <br /> identifierats. De grundläggande problem som urskiljts visade sig vara;<br /> <br /> ? bristfällig dokumentation av verksamheten vad avser lagerbokföring och transporter.<br /> <br /> ? bristfälliga rutiner vid materialhanteringen.<br /> <br /> ? bristfälliga kommunikationer mellan personalen.<br /> <br /> Analyser och mätningar har utförts utifrån logistiska modeller och teorier. På grund av verksamhetens mycket speciella karaktär visade sig dessa vara svåra att applicera. Verksamheten är mycket dynamisk då tillverkning av testprodukter sker sporadiskt och under varierande förutsättningar.<br /> <br /> För den nya anläggningen vid europahuset har förslag till nytt lagersystem utarbetats. Lagersystemet bygger på en ABC-analys av det lagrade godset. Vidare har en metodik utvecklats att utifrån utvecklingsenheternas planering prognostisera kvantiteten av resp materialgrupp för tillverkning av testprodukter. Möjligheter ges därmed att minska den totala lagernivån vilket är målet för att undvika externa lager och därmed interna transporter.<br /> <br /> Bristen på dokumenterad information har medfört att en detaljerad analys inte varit möjlig att utföra. Resultaten är av detta skäl översiktliga. Behovet av bättre dokumentation har därmed identifierats och en målsättning bör vara att i framtiden förbättra möjligheterna att styra lager och material.<br /> <br /> Ett nytt lagerstyrningssystem har föreslagits. Då Mölnlyckes informations- och logistiksystem är väl utvecklat för de produktionsaktiva enheterna har detta system utvärderats för en ev anslutning av testprodukttillverkningen. Kraven, förutsättningarna och möjligheterna har på ett översiktligt plan identifierats. Resultatet blev positivt. Det finns goda möjligheter att med detta system tillsammans med anpassade rutiner förbättra lagerstyrningen. En bättre överblick och ökade möjligheter till koordinering av verksamheten ger ökad flexibilitet och minskar lagerbehovet.<br /> <br /> Slutsatsen är att lager- och materialhanteringen under rådande förhållanden fungerar men ej tillfredsställande. Förbättringar är möjliga. Prioritering bör göras för att minska den totala lagervolymen och möjliggöra en lagerlokal för att undvika kostnader med kassationer av material, flera lagerkostnader, interna transporter, splittring av personal och resurser o s v. En effektivare styrning av lager- och materialhantering är nödvändig. Möjligheterna anses mycket goda. https://lup.lub.lu.se/student-papers/record/1318567/file/1318568.TIF image/tiff 869706 no 1995 swe Mölnlycke AB testprodukter material coh lagerstyrning Technological sciences Teknik Technology and Engineering 1318567 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318571 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Daniel Hellström author Henrik Weibull author Mats Johnsson supervisor Packaging Logistics v1000238 department Syftet med examensarbetet har varit att åstadkomma en kapacitetsökning i Thom Lightings lager i Landskrona. Målet var att bestämma hur en lämplig lagerlayout med ett smalgångsalternativ skulle se ut och hur mycket kapacitetsökning denna lösning skulle åstadkomma. Ytterligare en målsättning var att se över vilka rutiner som krävs för att skapa ett effektivt lager och slutligen göra en simulering som visar hur lagret skulle se ut och fungera.<br /> <br /> För att få inblick i existerande lagersituation och den förväntade lagersituationen har studier och datainsamling gjorts på företaget. Detta har gjorts genom intervjuer med berörda och statistikinsamling i existerande dokument. Materialet har översats i en modell vilken har simulerats i AutoMod?.<br /> <br /> Lagret består idag av ca 7800 pallplatser och innehåller kontinuerligt ca 1300 lagerförda produkter och lika många kundorderstyrda produkter. Det är uppdelat i åtta gångar med varierande bredd och en gång i mitten av byggnaden som går tvärs över de andra gångarna och som delar dessa på mitten. Hanteringsutrustningen består av totalt 16 truckar varav fem är skjutstativtruckar och sju är ledstaplare. Golvet är av dålig kvalitet vilket medför bl a konstanta vibrationer var än trucken kör i byggnaden. Produkterna i lagret har fast placering i vissa zoner, d v s en zonplacering. En zon består av en fjärdedels gång vilket innehåller ca 225 pallplatser. Detta innebär att när man ska plocka en produkt, vet man endast inom vilken zon den finns. Som stöd för placering av gods använder de sig av ett lageradministrativt system som är ganska instabilt med mycket störningar. Detta innebär att funktionaliteten av systemet är förhållandevis bristfällig. Framöver är det tänkt att Thom ska installera ett nytt lageradministrativt system som håller reda på alla pallplatser och vilka produkter som står på dessa.<br /> <br /> Ur analysen av Thorns förbrukning fick vi fram orderstrukturen. Den säger att i genomsnitt kommer det in ca 150 order per dag, det sammanlagda antalet orderrader på dessa är ca 375. 1 genomsnitt sker det ca 500 plock om dagen, 125 av dessa plock är helpallshanteringar.<br /> <br /> Genom att införa ett nytt lagersystem, smalgångslager, kan kapaciteten i Thoms Landskronalager ökas. För att denna kapacitetsökning inte ska gå förlorad måste man samti1igt införa ett nytt lageradministrativt system och stödjande rutiner. Vårt slutliga förslag på layout innebär 10 smalgångar med ca 32 skepp i varje. Detta ger en lagerkapacitet på 9750 pallplatser,<br /> <br /> För att ett smalgångslager ska fungera krävs ett extensivt informationssystem med rutiner för pallplatshantering. Utan ett sådant system fungerar inte lagerlösningen. Med tanke på Thorns stora produktflora och antalet artiklar som plockas varje dag kan stora tidsvinster göras med rätt system och tillhörande rutiner. Rutinerna för det nya lagret skall främja hanteringen och ta hänsyn till flödet i lagret. Detta innebär att alla rutiner ska vara utformade så att all form av dubbelhantering undvika.<br /> <br /> Ett system med flytande placering tillåter maximalt utnyttjande av lagerplatserna, d v s en hög fyllnadsgrad. En förutsättning för flytande placering är att ett lageradministrativt system finns. Ändrade rutiner och ett bättre lageradministrativt system skulle dessutom få den effekten att fyllnadsgraden i lagret blir högre. Idag sägs lagret ha en beläggningsgrad på ca 80 procent, vilket innebär ca 6250 belagda platser. Med ändrade rutiner och ett lageradministrativt system som optimerar inläggning och uttag av pallar kan man uppnå en betydligt högre fyllnadsgrad, upp emot 95 procent eller fler än 9200 pallar. Detta innebär en ökning med nästan 50 procent m a p antalet belagda pallplatser.<br /> <br /> Vidare bör ett lageradministrativt system tillsammans med ändrade rutiner leda till ett högre antal helpallar då plock optimeras. Idag tas en stor del av lagerkapaciteten upp av kundorderstyrda produkter. Det är ytterst viktigt att kundorderstyrda produkter ej lagerförs och därmed minskar lagrets kapacitet för lagerförda produkter. Vidare tas resurser i anspråk vid lagerföringsmomentet av kundorderstyrda produkter.<br /> <br /> 1 vår simuleringsmodell undersöktes hur resultatet påverkades om de olika variablerna truckkapacitet, antalet truckar av olika slag, antalet emballeringsmaskiner, flödet av pallar och orderstrukturens uppbyggnad förändrade sig. Med fyra plocktruckar blir utnyttjandegraden 75 procent. Dessutom behövs 3 smalgångstruckar.<br /> <br /> För att undersöka känsligheten på antalet truckar i lagret ökade vi godsflödet genom lagret mellan 30 till 35 procent. Totalt skulle det behövas fyra smalgångstruckar och de skulle ha en utnyttjandegrad på ca 75 procent per truck. Med fyra plocktruckar plockas alla destinationer i tid men truckarnas utnyttjandegrad blir 98 procent. Eftersom 98 procent är en för hög utnyttjandegrad så krävs det att man har fler plocktruckar. Med fem plocktruckar blir utnyttjandegraden 94 procent och med sex plocktruckar blir utnyttjandegraden 93 procent. Att utnyttjandegraden inte sjunker mer beror på att simuleringsmodellen börjar bli mättad på truckar. 1 verkligheten kan detta system fungera eftersom man kan tillåta hantering från samma gång, vilket innebär mindre kötider, med säkerhetsmarginaler. Faktumet kvarstår dock fortfarande; Lagret börjar bli mättat på truckar och väntetider kommer att uppstå.<br /> <br /> Här krävs ytterligare åtgärder som utökad arbetstid, ändrade rutiner eller en ny layout med en tvärsgående gång. Vid utökad arbetstid kvarstå behovstopparna av speciellt plocktruckar vilket är en faktor som dimensionerar antalet plocktruckar.<br /> <br /> Smalgångstruckarna kräver en stor planhet på golvet eftersom toleranserna i gångarna är små. Utan tillräcklig planhet och stabilitet i golvet blir riskerna för stora för den här typen av hantering. Vår slutsats är därför att om smalgångslagring ska införas måste golvet repareras och skenor för truckarnas hjul placeras i gångama.<br /> <br /> Sammanfattningsvis tycker vi att smalgångshantering i lagret vid Thom Lighting är en intressant idé men det är viktigt att fokusera på problemens kärna så att inga förhastade lösningar implementeras utan att en grundlig analys gjorts. Om detta görs fås ett nytt system som döljer de grundläggande problemen bättre. Vi anser att man först och främst bör fokusera på skapande av bättre fungerande rutiner och ett lageradministrativt system som är väl anpassat för Thorns behov. Detta skulle inte höja kapaciteten i lagret men skulle skapa ett mindre behov av kapacitet och en ökad effektivitet. https://lup.lub.lu.se/student-papers/record/1318571/file/1318572.TIF image/tiff 848340 no 2001 swe capacity increasing measures warehouse Thorn Lighting AB Technological sciences Teknik Technology and Engineering 1318571 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318576 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lina Svensson author Mats Johnsson supervisor Packaging Logistics v1000238 department Tetra Pak Global Technical Support AB (GTS) is a company within the Tetra Pak group which main task is to supply the whole world with spare parts for all kinds of Tetra Pak machines. GTS supplies about half a million different parts, which demands a large purchase organisation. This thesis deals with the so-called Sourcing purchase, which is a term for purchase of non-forecasted parts that have no specified delivery time or price set.<br /> <br /> A Sourcing item could be a part that has never been bought before with an un-known origin supplier, or the part could have a known supplier but, since it hasn?t been bought for the last 20 years, this supplier is not suitable anymore. It is char¬acterised by its unpredictable demand and low volume, which also means that there are no large profits for the supplier to make. At the same time, GTS requires fast deliveries, since there is always a customer order behind every Sourcing purchase order.<br /> <br /> Sourcing purchase represents as little as 2 % of the total purchase value at GTS, but the work finding suppliers for these parts demands the time of almost one fourth of all operative purchasers. The objective in this thesis has been to identify aspects that enable improvements of the Sourcing purchase process. First, the existing pur¬chasing strategy at GTS was examined with the aim to find ways to include Sourcing in the overall procedures. The second task was to identify the character¬istics of a suitable Sourcing supplier. It was also discussed if the idea of having pre-determined suppliers for Sourcing is a good way of solving some of today&#39;s problems.<br /> <br /> To reach a valid result in the thesis, a broad range of persons, within and outside GTS, was interviewed. The aim was to reflect as many viewpoints as possible, mainly to prevent an outcome only based on management&#39;s thoughts. Furthermore, some literature and statistics were studied to strengthen the results.<br /> <br /> Since the company does not expect to make any large earnings, time-consuming activities should be avoided when improving the Sourcing process. Instead, GTS should focus on bringing in Sourcing purchase as a natural part of the general strategy. When discussing how to include Sourcing purchasing in the overall purchasing strategy at GTS, the recommendations are, for instance, to include the Sourcing needs in the ongoing supplier-structuring project. Furthermore, the Supplier portal (a web-based tool) and the Assessment system should be developed to better support Sourcing.<br /> <br /> When analysing the characteristics of a suitable Sourcing supplier, the strategy based on theoretical studies was to strengthen the negotiation position against the supplier. Using suppliers that already have a high Tetra Pak dependency could solve this problem. Moreover, a flexible organisation and production process is essential when producing small volumes to an acceptable price.<br /> <br /> The interviews resulted in many Sourcing supplier requirements. The importance of the criteria differed to some extent between the respondents, but everyone agreed more or less on that high quality, high delivery precision, short lead-times and quick responding times on inquiries were especially important qualities. The answers conflicted, however, in the discussion about how important a low price is for these items.<br /> <br /> The next step for GTS to make in the Sourcing case is to decide how to carry out the concept of pre-determined suppliers; should they wait until the overall struc-turing project is implemented, or should Sourcing start its own structuring work with the aim to make a short-term solution? https://lup.lub.lu.se/student-papers/record/1318576/file/2060622.pdf application/pdf 31649700 no 2004 eng Sourcing purchase Supplier Sourcing item Technological sciences Teknik Technology and Engineering 1318576 2008-06-03T00:00:00+02:00 2011-08-01T11:42:32+02:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318580 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johanna Smederöd author Mats Johnsson supervisor Packaging Logistics v1000238 department Problem: Hur har dessa förändringar påverkat transporterna hos Postens kunder? Behöver de idag åka kortare eller längre för att komma till ett serviceställe eller till kassaservice? Har de bytt transportsätt?<br /> <br /> Hur har detta sin tur påverkat miljön i fråga om avgaser och utsläpp, framför allt koldioxidutsläpp?<br /> <br /> Har det medfört en positiv eller negativ förändring i miljöpåverkan?<br /> <br /> Syfte: Syftet med detta examensarbete är att undersöka hur transporterna och dess miljöpåverkan hos Postens kunder har förändrats i och med omstruktureringen i två serviceområden, Gävle, representerat av Gävle kommun, och Halmstad, representerat av Falkenberg och Halmstad kommuner. Detta görs genom att genomföra en postenkät.<br /> <br /> Metod: Efter att ha fått problemformuleringen gjordes en postenkät. Denna skickades ut till 1000 personer i tre olika kommuner. Utifrån de svar som kom in på enkäten gjordes en analys med hjälp av ett statistikprogram och resultaten analyserades sedan för att få fram ett svar på problemformuleringen.<br /> <br /> Slutsatser: Beteendet hos Postens privatkunder har inte förändrats mycket. Trots att den genomsnittliga sträckan till serviceställena och Svensk Kassaservice har förkortats gentemot till postkontoren är det fortfarande ungefär lika många som tar bilen i ungefär samma utsträckning. Det som har förändrats är hur ofta kunderna använder sig av serviceställena och Svensk Kassaservice, vilket är mindre ofta än vad de använde postkontoren.<br /> <br /> Trots att beteendet inte förändrats mycket så har bensinförbrukningen hos kunderna minskat i Falkenberg och Halmstad kommuner medan den har ökat i Gävle kommun. Detsamma gäller utsläpp av koldioxid. Förändringen kan alltså sägas vara positiv i Falkenberg och Halmstad och negativ i Gävle. https://lup.lub.lu.se/student-papers/record/1318580/file/1318581.pdf application/pdf 1257742 no 2003 swe Miljö bensinförbrukning koldioxidutsläpp enkätundersökning Technological sciences Teknik Technology and Engineering 1318580 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318584 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Hedvall author Jakob Leonardsson author Gunilla Jönson supervisor Packaging Logistics v1000238 department Föreliggande rapport syftar till att utreda om det är ekonomiskt möjligt och miljömässigt intressant att införa ett retursystem för lastbärare till arkade produkter hos MoDo Paper Silverdalen. Bakgrunden är att MoDo Paper Silverdalen vill minska skadefrekvensen och öka staplingsbarheten under transport, genom att införa ett returemballage. Ett retursystem skulle också gynna företagets miljöframtoning.<br /> <br /> Genom studiebesök och intervjuer på Silverdalsbruket, hos grossister och tryckerier har vi funnit att skadefrekvensen för Silverdalsbrukets produkter är låg och inte uppfattas som något allvarligt problem i något av dessa led.<br /> <br /> De vanligaste skadorna är:<br /> <br /> ? Ett mindre antal skadade ark i stapelns topp och botten, beroende på frakt och emballeringsmetod.<br /> <br /> ? Små hål i krympfilmen, orsakade av omild hantering.<br /> <br /> ? En eller flera av pallens medar har lossnat eller vikt sig under palldäcket, vilket medför ökade hanteringskostnader.<br /> <br /> ? Förskjuten eller havererad arkstapel, p.g.a. problem med pallens medar eller att godset utsatts för en kraftig stöt, som orsakar ökade hanteringskostnader eller kassation.<br /> <br /> Skadeeffekterna kan ofta minskas genom omstapling eller genom att skära ner arken i storlek. Vi anser att MoDo Paper Silverdalen inte har något stort problem med skador på gods och att dagens distributionssystem fungerar bra i detta avseende.<br /> <br /> Efter undersökning av staplingsbehovet har vi dragit slutsatsen att möjligheterna till godsstapling under transport är begränsade. Det är endast vid båttransporter som godset kan staplas i större utsträckning, vilket utförs redan idag med bra resultat. Vid lastbilstransporter kan endast ett fåtal godsenheter staplas på varje fordon p.g.a. viktbegränsningar, med hänsyn till fordon och lagar. Detta gäller både inom Sverige och utomlands. Det kommer eventuellt att uppstå ett ökat staplingsbehov vid tågtransport, till följd av den nya tågförbindelse som ska införas mellan Silverdalen och Oskarshamn.<br /> <br /> Stapling av gods i lager sker i dagsläget utan större problem.<br /> <br /> Vi har närmare undersökt två förslag på retursystem. 1 det ena används en relativt billig plastpall, liknande dagens engångspall. 1 det andra förslaget är emballaget en pall med pallhuv, emballaget är här något dyrare men det erbjuder gott skydd åt godset samt ypperlig staplingsbarhet. 1 båda förslagen används returemballaget t.o.m. tryckerierna.<br /> <br /> Enligt vår beräkningsmodell är inget av förslagen lönsamt jämfört med dagens engångssystem. Det första förslaget ligger nära gränsen för lönsamhet, men detta är endast inom Sverige och förutsatt att retursystemet är infört på samtliga marknader.<br /> <br /> Både retursystem och dagens engångssystem är miljömässigt försvarbara (med dagens förutsättningar). Retursystemens största nackdel är det ökade transportbehovet, till följd av returtransporter. Eftersom engångssystemet inom en snar framtid kommer att belastas av REPAavgifter på träpollarna, så minskar de ekonomiska skillnaderna mellan systemen något.<br /> <br /> Ökade transportkostnader för ett retursystem kommer dock troligtvis att påverka MoDo mer än REPAavgifter i framtiden.<br /> <br /> Om det är möjligt att reducera returtransportpriset kan ett retursystem bli lönsamt jämfört med dagens engångssystem. Lönsamhet kan inte åstadkommas genom ökad omsättningshastighet för emballaget.<br /> <br /> Förutsättningarna för ett retursystem försämras främst av bristande standardisering och den stora geografiska spridningen på MoDo Paper Silverdalens kunder.<br /> <br /> En kalkyl har utarbetats i Microsoft Excel för att MoDo skall kunna variera olika parametrar och utvärdera egna förslag på retursystem i framtiden.<br /> <br /> Vi anser att MoDo Paper Silverdalen inte bör införa ett retursystem ännu utan avvakta branschens utveckling, för att bibehålla sin konkurrenskraft. Om andra papperstillverkare avser att införa ett retursystem måste MoDo Paper också vara beredda att göra detta. För att rationalisera dagens system rekommenderar vi främst att träpallar med smala medar görs kraftigare samt att walkingboards och spännband används för att underlätta stapling under transport. https://lup.lub.lu.se/student-papers/record/1318584/file/1318585.TIF image/tiff 865762 no 1996 swe retursystem lastbärare MoDo paper Silverdalen Technological sciences Teknik Technology and Engineering 1318584 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318589 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Roland Mårtensson author Gunilla Jönson supervisor Packaging Logistics v1000238 department New technology is always coming and with that comes changes. The technology has made it easier to fulfil each customer&#39;s demand. The customer has today much more different products to choose between and the stores have problems to get the right product to the right place at the right time. It is hard for the supply chain to forecast what the customer is going to buy the next day, especially if the delivery time is three days. The new technology has made it possible, not only to forecast better but also to get the products faster from the grower to the stores as inexpensive as possible.<br /> <br /> A result of this new technology, and of the fact that the corrugated industry has not followed the retailer development in the fruit and vegetables area, is the larger competition from plastic crates. The plastic crates have come and will stay in the fruit and vegetables market also in the future, the question is only how big market share they will take.<br /> <br /> The plastic crates have a lot of advantages, which was the reason why the crate was developed but also some disadvantages compared to the corrugated trays. The study has shown that the biggest differences are:<br /> <br /> ? Less damage on the product with plastic crates because of their higher stiffness, better stackability and modularity<br /> <br /> ? Easier handling of plastic crates than corrugated trays. The plastic crates have good handles always located at the same place<br /> <br /> ? The corrugated trays do not fulfil the automatic sorting conditions of today or in the future at the RDC<br /> <br /> ? No need to collapse the studied plastic crates after use which saves time, while the corrugated trays are collapsed for recovery<br /> <br /> ? Some products cannot be transported in plastic crates without a layer of corrugated board on the bottom of the crate, this because some products are too sensitive for the hard plastic crate<br /> <br /> ? The utilisation of transport volume is in general judged to be lower in the plastic trays because of lack of different crate heights. On the other hand the utilisation in a roll-cage is better than for trays.<br /> <br /> ? An additional cost for the plastic crates when they are washed and transported back to the supplier. This cost must be added to the crate cost when compared to the cost of the corrugated tray (purchasing cost for the crate divided by number of trips used)<br /> <br /> ? There could be fewer staff members doing the same thing in the second part of the supply chain if the second part off the supply chain only were using plastic crates.<br /> <br /> Because of the mentioned reasons the plastic crate share of the fruit and vegetables market will grow. The corrugated industry has to react on this competition from the plastic crates to keep its market share. It has to improve the stackability so that the damage, handling and transport costs become lower. The corrugated manufacturers also have to think about what new requirements the future demands of the tray.<br /> <br /> The author&#39;s opinion is that if not the corrugated industry reacts to the new demands from the customers the plastic crates will reach a great market share. 50% does not seem impossible if judged from the feed back 1 have got during this study from people in the chain. However, this figure has no scientific relevance,<br /> <br /> true or not?<br /> <br /> That will the future tell us. https://lup.lub.lu.se/student-papers/record/1318589/file/1318590.TIF image/tiff 1251630 no 1999 eng Corrugated board trays plastic crates case study Technological sciences Teknik Technology and Engineering 1318589 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318593 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Måns Weimarck author Mats Johnsson supervisor Packaging Logistics v1000238 department En ständig strävan pågår i industrin mot att befästa och utveckla sina marknadspositioner genom ökad effektivitet, produktivitet, flexibilitet och kvalitet. Japan anses vara ett föregångsland i detta avseende och kända koncept som Just-in-time (1ff) eller Resurssnål produktion härstammar därifrån. Just-in-time-konceptet innebär en satsning på att minimera alla kostnader och all resursförbrukning. Man låter medvetet produktionssystemen bli känsliga för störningar för att felkällorna lättare ska kunna upptäckas och åtgärdas. En strävan är att ständigt öka produktionstakten samtidigt som man vill öka flexibiliteten i volym och produktmix. Kopplingen till logistik är tydlig. Jag har genomfört ett litteraturstudium med målet att finna forskningsresultat avseende kopplingar mellan arbetsmiljö och logistik i moderna produktionssystem samt att föreslå områden för fortsatt forskning.<br /> <br /> Ingen författare i studien hade närmare studerat kopplingen mellan arbetsmiljö och logistik, och endast ett fåtal hade ens studerat arbetsmiljön på JIT-företag. Dessa framförde kritik i varierande grad, främst mot den höga arbetstakten och monotonin i arbetsuppgiften. De författare som hade studerat utländska förhållanden var betydligt mer negativa i sin kritik än de som hade studerat svenska.<br /> <br /> Jag fann att ämnet hittills blivit dåligt belyst men att merparten av de författare som studerat det till övervägande del var negativa i sin kritik av följderna för arbetsmiljön. För att kunna erhålla en arbetsmiljö som förenar arbetarens behov av en riskfri, god och mänsklig miljö och företagets krav på ekonomisk tillväxt anser jag att stora forskningsinsatser kan göras i ett tvärvetenskapligt perspektiv, över fakultetsgränserna, med hörnstenar i sociologisk och psykologisk beteendevetenskap, medicin, logistik och produktionsteknik. Målen bör vara att förstå hur människan fungerar i en lIT-miljö och att kunna anpassa och utveckla arbetsmiljön så att man har förutsättningar att kunna uppnå den höga engagemangsnivå och arbetsglädje som JIT-förespråkarna förutsäger. För närvarande verkar det som om man experimenterar mycket på de svenska företagen med olika 1ff -koncept och jag vill därför också betona vikten av praktiska tillämpningar av forskningen.<br /> <br /> Förslag till fortsatt forskning i korthet:<br /> <br /> ? Hur ska materialhanterings- och produktionsutrustning vara utformad i företagets olika delar för att anpassas till människans grundläggande behov och möjligheter?<br /> <br /> ? Hur kan man förändra arbetsuppgifterna och organisationen i en JIT-miljö för att ge arbetaren större arbetsglädje?<br /> <br /> ? Kan man finna normer eller gränsvärden för arbetstäkt, cykeltid och frekvens, vad gäller fysisk förslitning och skada?<br /> <br /> ? Utformning av konceptet ?Mänsklig resurssnål produktion?. https://lup.lub.lu.se/student-papers/record/1318593/file/1318594.TIF image/tiff 862848 no 1995 swe lean resurssnål produktion materialhantering Technological sciences Teknik Technology and Engineering 1318593 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318597 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Fredrik Bengtsson author Markus Berggren author Annika Olsson supervisor Packaging Logistics v1000238 department As a complementary product to the Tetra Brik Aseptic packaging system, Tetra Pak is about to introduce a new, value added, aseptic packaging system called SCAP. The SCAP packages consists of a lower part made of carton and an upper part made of plastic, similar to a PET-bottle, resulting in a bottle shaped package. The purpose of this thesis is to design a logistical- and material-handling system for the upper part of the package, further on referred to as the SCAP-top. The system is to include all activities along the Supply Chain, starting with ready-made SCAP-tops, manufactured in pairs by extrusion blow moulding at a central plant production site, and finishing with the SCAP-tops entering a filling machine at a customers? site.<br /> <br /> The methodology of this thesis is principally based on a project development method used regularely at Tetra Pak companies, called idea management. The method consists of a number of steps with the purpose of generating, evaluating and carry out new ideas, and was a very helpful tool in structuring our work. However, the initial steps, that involve brainstorming, proved to be quite difficult. The main difficulty with that procedure is in our opinion to induce people to think in the specific directions that you want, in order to reach useful results. Although the method assumes that the participants are open-minded, our experience is that the best results are obtained when the purpose of each exercise is well specified and does not allow thoughts of too many subjects at the same time.<br /> <br /> After defining necessary parts of the logistical system, an overall supply chain model was put together that provided a visual overview of activities and thereby lead times. Based on this model and deriving from the idea generation session, a number of alternatives of material handling and packaging equipment for the SCAP-top, including primary packaging, load carriers, factory layouts etc, was put together. A major question concerning the packaging system was wheather the SCAP-tops should be packed stochastically or ordered in a specific pattern in the primary package. To answer this question and in order to evaluate the material handling and packaging alternatives, empirical tests concerning filling-rates and packing patterns of primary packaging was carried out as well as transportation and storage simulations.<br /> <br /> To get an understanding of the economic situation, a cost model of the total supply chain was created. Hereby the different alterantives could be compared, both concerning running costs and investments. Apart from displaying the total cost, the model also showed that the transportation costs represented 60% of the total running costs, making it the far most important factor in the supply chain.<br /> <br /> The different alternatives were finally compared and evaluated out of economical, functional and environmental factors, using the Kesselring matrix. The alternative for the SCAP-top material handling system that got the highest rank means in broad outline that a highly automated production layout is used, a corrugated board of model 210BC with an unsealed, plastic inner bag is used as primary package for stochastically placed SCAP-tops. As load carrier a 0,9mm thick, multilaminated, kraft liner board called Slip Sheet is used and the SCAP-top transportation is handled by jumbo trailers with 3m of loading height. https://lup.lub.lu.se/student-papers/record/1318597/file/1318598.pdf application/pdf 4855194 no 2004 eng SCAP Handling system Supply Chain Technological sciences Teknik Technology and Engineering 1318597 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318602 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Maria Joelsson author Sofia Kållberg author Gunilla Jönson supervisor Packaging Logistics v1000238 department 1januari 1994 infördes producentansvaret i Sverige, vilket syftar till att massaproducenter samt importörer, tillverkare och försäljare av wellpappförpackningar gemensamt skall se till att wellpappen återvinns. Producentansvaret stipulerar att minst 65% av wellpappen skall kunna återanvändas eller materialåtervinnas den 1:a januari 1997. 1 Sverige har redan denna procentsats överstigits och i dagens läge återvinns cirka 75% wellpapp.<br /> <br /> Inom handeln har system för återvinning av wellpapp funnits sedan 1970-talet. Ett fåtal butiker återvann wellpapp redan på 1950-talet. Under de senaste åren har systemet effektiviserats för att klara av insamling av allt mer wellpapp. De flesta butiker samlar i dag in större delen av sin wellpapp, men det finns fortfarande brister vilka påverkar effektiviteten i systemet.<br /> <br /> För att identifiera dessa brister samt för att hitta möjligheter att effektivisera återvinningen av wellpapp, fick vi i uppdrag att kartlägga återvinningskedjan från butik till pappersbruk. Kartläggningen gjordes i Värmland och Malmö/Lund-regionen för att spegla likheter och skillnader mellan glesbygd och storstadsområde. Vi har i undersökningen inkluderat allt från små till stora livsmedelsbutiker, fackhandel, returfiberbolag, återvinningsföretag och pappersbruk. Arbetet påbörjades med litteraturstudier för att sedan övergå till studiebesök ute i affärer och på företag i branschen. Vi har dessutom utfört beräkningar för att kunna dra slutsatser om olika kostnader i samband med återvinning av wellpapp.<br /> <br /> 1 vårt arbete har vi funnit flera möjliga vägar att effektivisera insamlingen av wellpapp i butikerna samt de aktiviteter som returfiberbolagen bedriver. Vi har också funnit att det är lönsamt för butikerna att återvinna wellpappen, men att kostnaderna för återvinning varierar för olika butiker.<br /> <br /> Vi har i undersökningen kommit fram till att insamlingssystemet i butikerna kan effektiviseras med ett anpassat lagringssystem. Hur effektivt lagringssystemet är beror på mängden wellpapp i butiken. Rullpallar är fortfarande det mest använda och effektiva lagringssystemet för små livsmedelsbutiker. Det är också ur lönsamhetssynpunkt det bästa för butiker med mindre än 20 ton wellpapp per år. När tonnaget överstiger denna mängd bör butiken införskaffa en press om investeringsmöjligheter finns. Systemet blir, för en butik med mer än 20 ton wellpapp per år, mer lönsamt och effektivt med en press än med rullpallar eftersom hanteringstid och hämtningsfrekvens minskas.<br /> <br /> När det gäller val mellan press eller komprimator kan vi inte sätta en gräns för mängden wellpapp. 1 detta fall avgör mängd material, tillgång till utrymme, insamlingssätt och investeringsmöjligheter. En komprimator eller komprimatoranläggning innebär att butiken kan spara pengar på sänkt hämtningsfrekvens, medan driftkostnaderna ökar.<br /> <br /> Undersökningen visar att utbildningen bland personalen i butikerna är bristfällig. Oftast anser butikscheferna att det räcker med en mindre mängd information till de anställda och<br /> <br /> återvinningen ses som ett nödvändigt ont. Konsekvensen blir att personalen ej engageras i insamlingsarbetet och ej heller förstår vikten av rena fraktioner. För att insamlingen av wellpapp skall bli så effektiv som möjligt och för att man ska kunna utöka källsorteringen, bör därför personalen utbildas på området.<br /> <br /> Under kartläggningen framkom det att det finns en diskontinuitet i betalningssystemet för insamling och transport av wellpapp. Trots att en uppgörelse har gjorts mellan Returwell AB och returfiberbolagen om att alla butiker skall få 275 kr/ton wellpapp för att begränsa spridningen av returfiberbolagens priser, så har butikerna olika kostnader för insamling och transport. Detta beror på att butikerna ofta inte vet om avtalet och på att mindre entreprenörer och återvinningsföretag, som fungerar som mellanled, har olika taxor.<br /> <br /> Vi har kommit fram till att själva insamlingsprincipen med hämtning av wellpapp i anslutning till varutransporter är ett effektivt system för små och mellanstora livsmedelsbutiker. Dessa har inte så stor mängd wellpapp, vilket innebär att ett vanligt återvinningsföretag måste köra en rutt med flera stopp för att fylla en lastbil. Detta innebär i sin tur att det blir dyrt för butiken eftersom den Far betala för stoppen. Ett system med varutransporter i kombination med returtransporter för använd wellpapp, innebär fördelar för både butik och returfiberbolag. För butiken det blir billigare insamling och transport eftersom bilarna ändå skall gå tillbaka till lagercentralen eller fabriken. Returfiberbolagen tjänar på att få hämta en större mängd wellpapp på en plats.<br /> <br /> För övrigt har undersökningen visat att alla butiker tjänar på att återvinna wellpapp eftersom sopkostnaderna är större än kostnaderna för återvinning, Sopkostnaderna ökar också i snabbare takt än återvinningskostnaderna.<br /> <br /> 1 en jämförelse mellan de olika regionerna, så framkom det att skillnaderna är små. Återvinningssystemen är likartade men skiljer sig åt på så sätt att avstånden mellan butik och returanläggning är större i Värmland. Därmed har butikerna i glesbygd högre kostnader för insamling och transport av weilpapp. Vi kom också fram till att butikerna i Malmö/Lund-regionen nått längre när det gäller källsortering. Detta beror på att det har funnits fler eldsjälar som drivit källsorteringsprojekt i denna region än i Värmland. Troligtvis finns det också mer resurser för sådana projekt i tätortsregioner än i glesbygd. https://lup.lub.lu.se/student-papers/record/1318602/file/1318603.TIF image/tiff 884694 no 1996 swe återvinning wellpapp livscykel Technological sciences Teknik Technology and Engineering 1318602 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318607 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Björklund author Annika Olsson supervisor Packaging Logistics v1000238 department Distribution av temperaturkänsliga livsmedel går ut på att lagra, hantera och transportera varor till så låg kostnad som möjligt med bibehållande av så stor del som möjligt av ursprunglig kvalitet och hållbarhet. För att klara detta krävs att alla aktiviteter sker under temperaturkontrollerade former, vilket benämns kylkedja.<br /> <br /> Denna rapport behandlar de aktiviteter som sker i flödet från grossist till detaljist, restaurang och storhushåll samt de aktiviteter som dessa aktörer ansvarar för. Målet med rapporten är att redogöra för hur dagens distributionssystem fungerar för kylda och frysta livsmedel i detta flöde, med särskild inriktning på temperaturhållning och hållbarhet. Kontroller, kvalitet, svinn, reklamationer och problem är områden som studerats särskilt.<br /> <br /> Väldigt få av de intervjuade aktörerna inom livsmedelsbranschen anser att det är något problem med temperaturhållningen. Intervjuer med myndigheter och studier av rapporter och resultat från dessa ger dock en helt annan bild. Den lagstadgade maximitemperaturen för de flesta kylda livsmedel är 8ºC, medan de flesta produkters optimala och rekommenderade temperaturer ligger under 4ºC. För höga temperaturer förekommer ofta, både på frys- och kylvaror, under framför allt transporter och i de senare leden av kylkedjan.<br /> <br /> Alla verksamheter som bedriver någon form av yrkesmässig livsmedelshantering är, enligt lag, skyldiga att utöva egentillsyn av sin verksamhet för att förebygga hälsorisker. En av grundpelarna i denna tillsyn utgörs av temperaturkontroller och dokumentation av dessa. Det är dock väldigt många verksamheter, i form av butiker, restauranger och storhushåll, som inte utövar denna tillsyn i tillräcklig omfattning. Orsakerna är bristande kunskap, personalbrist och ekonomiska aspekter. Följden blir att de temperaturrelaterade bristerna inte uppmärksammas och åtgärdas. I förlängningen leder detta till hälsorisker, förkortad hållbarhet, kvalitetsproblem och ökat svinn. Brister i kontrollerna gör det svårt eller omöjligt för verksamheterna att reklamera defekta produkter till föregående led. Det leder till att de senare leden i distributionskedjan drabbas hårt, även om temperaturmisshandeln förkommit i tidigare led.<br /> <br /> Möjliga lösningar på problematiken är bättre utbildning och enkel, kostnadseffektiv teknik. Förståelse för vad man gör och varför det är så viktigt att göra rätt är grunden. Med tekniska hjälpmedel som kan säkerställa en varas verkliga tids- och temperaturexponering, vilka är de viktigaste faktorerna som påverkar hållbarheten och kvaliteten, uppmärksammas problemen. Det bereder också väg för en framtida varustyrning med avseende på en produkts verkliga hållbarhet, LSFO (Least Shelf-life First Out), istället för som idag där FIFO (First In First Out) och datummärkning är avgörande. Fördelarna med LSFO är att hanteringskvaliteten från producent och framåt vägs in, vilket ger längre hållbarhet för varor som hanterats korrekt och kortare för temperaturmisshandlade. Vinsten blir minskat svinn, säkrare livsmedel och högre produktkvalitet. https://lup.lub.lu.se/student-papers/record/1318607/file/1318608.pdf application/pdf 958677 no 2002 swe Temperaturkänsliga livsmedel Distribution Varuflöde Grossist Restaurang Storhushåll Technological sciences Teknik Technology and Engineering 1318607 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318611 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Pär Christiansen author Henry Korpela author Gunilla Jönson supervisor Packaging Logistics v1000238 department Government regulations and customs duties restrict the import of trucks to some of the markets to which Scania tries to sell their trucks. The distribution problem due to these regulations is solved by the foreign assembly department, KD, at Scania. This means that competence is needed and costs are added not related to Scania&#39;s core operations.<br /> <br /> The aim of this master thesis has been to analyse and to evaluate alternative ways of managing the packing operations considering cost, quality and work organisation. To study and examine the work methods and operations of today and also to present methods measuring the operations effectiveness and productivity.<br /> <br /> We have used the system approach to maintain totality and to understand the component&#39;s relation to this totality. Field studies combined with studies of relevant literature and studies of other companies operations have given us the knowledge and the understanding of the packing operations needed. We started with a broad perspective which as time went by went over to a more narrow perspective and to a more problem focused study.<br /> <br /> The study has come to some conclusions and recommendations. These are listed below.<br /> <br /> Material flow<br /> <br /> Reduce the material flow to the packing area.<br /> <br /> ? Standard material should be directed to the spare parts department for packing<br /> <br /> ? Rim, fuel tank and air deflector suppliers should do the packing. The material should then be transported to the point of consolidation<br /> <br /> ? The Components should be packed at the component&#39;s assembly area<br /> <br /> ? The Engines should be packed at the engine manufacturing area<br /> <br /> Better control of material flows from the storage facilities.<br /> <br /> ? Fixed time control of material delivery<br /> <br /> ? The storage facilities should only deliver full material containers<br /> <br /> ? Transport the surplus of material to the truck assembly<br /> <br /> Change the external transports<br /> <br /> ? After being packed, the gearbox should be transported directly to the current harbour<br /> <br /> ? Move the axle packing to Södertälje<br /> <br /> ? Use the harbour in Göteborg as a point of consolidation<br /> <br /> ? Start a close co-operation with one transport company which can take full responsibility for the whole distribution to the customers<br /> <br /> Layout<br /> <br /> ? Establish two stations, one for the packing- and one for the picking operations<br /> <br /> ? Create a layout and a material flow that is similar to the assembly line with the boxes in the middle and the material along the sides<br /> <br /> ? Let the material move and the packing material, the boxes, remain<br /> <br /> ? The material flow to the packing- and the picking operations should go by roll conveyors<br /> <br /> ? Label checking should be done as today at the packing- and the picking area. The material should be delivered with its labels<br /> <br /> Packaging materials<br /> <br /> ? Use larger boxes<br /> <br /> ? Use a sheet to reduce problems with ergonomics<br /> <br /> ? Use a standard pallets 1200*1600 mm as a reusable box<br /> <br /> Measurements<br /> <br /> ? To observe problems<br /> <br /> ? To support the changes<br /> <br /> ? To evaluate the changes<br /> <br /> Cost reduction<br /> <br /> The cost reduction due to recommended changes should be, according to our own calculations, approximately 5.6 million SEK each year. https://lup.lub.lu.se/student-papers/record/1318611/file/1318612.TIF image/tiff 1258060 no 1997 swe packning scania kostnadsreduktion Technological sciences Teknik Technology and Engineering 1318611 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318616 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anna Jernberg author Sandra Svensson author Fredrik Nilsson supervisor Packaging Logistics v1000238 department Purpose: The purpose of this project is to contribute to the development and implementation of an improved packaging solution to Tetra Pak parts that provides a higher customer value with the ultimate goal to strengthen the Tetra Pak brand.<br /> <br /> Objectives: To evaluate a number of packaging solutions of corrugated board to a limited number of Tetra Pak unique Carton parts and produce recommendations regarding the number of package sizes needed to package these parts.<br /> <br /> To develop a suggestion regarding where and how in the supply chain to primary package the parts we have chosen earlier,<br /> <br /> To estimate the eh4mge m total cost deriving from the new proposed packaging solutions and new location of packaging activities.<br /> <br /> Methodology: Based on a selected number of Tetra Pak unique parts, a general packaging design. printed with the Tetra Pak logotype have been suggested Moreover, qualitative and quantitative analyses and rumour benchmarking studies have been done in order to establish whether the primary packaging of these parts shall be performed in house or at the suppliers. The method can be characterised as it system&#39;s approach with inductive features.<br /> <br /> Conclusions: We have concluded that the benefits of implementing a new packaging design to an increased number of Tetra Pak unique parts would increase the value of the Tetra Pak brand.<br /> <br /> We therefore recommend Tetra Pak to increase the number of parts primary packaged in corrugated board boxes. We also recommend Tetra Pak to change the standard design to a white corrugated board box printed with the Tetra Pak brand. Furthermore, we recommend Tetra Pak to locate the primary packaging activities of the selected parts in4iouse. https://lup.lub.lu.se/student-papers/record/1318616/file/1837805.pdf application/pdf 1121299 no 2006 eng Packaging logistics, packaging, logistics, branding, marketing, environmental aspects, packaging organisation, supply chain management, benchmarking, Tetra Pak, Tetra Pak Technical Service Technological sciences Teknik Technology and Engineering 1318616 2008-06-03T00:00:00+02:00 2011-03-04T09:46:24+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318621 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Robert Davstedt author Fredrik Ulappa author Mats Johnsson supervisor Packaging Logistics v1000238 department In this project, we are studying the material flow and the information flow of sample materials and the appurtenant report of deviation for the purpose to be able to suggest better solutions. The sample material, which is to be analysed, is to be continuously taken from the production flow. The purpose is to navigate the process by the results found by the analysis. Because of this, it&#39;s very important that both methods of analysis are ensured and that the sample material is representative for the production flow. However, even more importantly, is that activities and transportations, combined with both flows, must perform in a quick and correct way in order to maintain or improve Höganäs AB&#39;s competitive strength.<br /> <br /> According to reports are about 20 products per day not available, for loading, at the time of delivery. If the result analysis, of the product, is missing the lab is to be contacted by the department of dispatch in order to get information about when the result can be expected. Soon after this, information returns to the department of dispatch who forwards the information to the respective drivers. The driver then decides whether to wait or turn around, Part of the high cost of transportation at Höganäs AB relates to what extent of delay products are subject to in comparison to the decided time of delivery. Extensively delayed products tend to be transported by air instead of by sea to avoid any harm to customers. One way to partly minimize delays is to make the processes of logistics of the sample material flow more efficiently.<br /> <br /> The transportation of sample materials from the ?works of iron powder? is performed by the laboratory personal. The argument for this according to Höganäs AB is that the laboratory assistants know how important it is to handle sample materials in the right way. In order to improve the material flow into the laboratory from the ?works of iron powder?, we have proposed that part of the transportation can be performed by the control room personal and packaging personal. This will reduce the lead-time of transportation.<br /> <br /> In order to make the laboratory able to communicate the results as quickly as possible, the sample material is to be transported without interruption, and waiting times and activities either be reduced or eliminated. If the sample material flow should be more effective and at the same time more safe, the current pneumatic tube system should be enlarged.<br /> <br /> Today, the laboratory assistants perform their work tasks in subject to relation to their competence. This means that the flexibility is low when it comes to the disposal of the workforce. If the personal are to be educated and become multi-skilled, flexibility will increase, and therefore tasks would not be gathered as it was before.<br /> <br /> All results are entered into the computer system by the laboratory assistants. To speed up the processes, the results of analysis can automatically be transmitted into the computer system. By doing so, the lead-times becomes shorter. In addition, manpower is made available to other tasks. The cost of transmitting results of analysis directly into the computer system instead of doing it by hand has not been assessed. However, we find this issue worth examinating. If it indicates that the cost is in relation to what the implementation is worth, the suggestion should be accepted and implemented.<br /> <br /> In accordance to our suggestion about the importance of the ability to make priorities for selected products, we strongly recommend that appurtenant sample materials have priority rights in the lab. In order to implement this, the sample material should be equipped with special marks and the data system should also indicate a priority by confirmation. https://lup.lub.lu.se/student-papers/record/1318621/file/1318622.TIF image/tiff 867506 no 2001 swe analys av flöde provhantering Höganäs AB Technological sciences Teknik Technology and Engineering 1318621 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318626 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Jonsson author Annika Olsson supervisor Packaging Logistics v1000238 department I Sverige ökar, enligt Statistiska Centralbyrån, antalet konsumenter som har tillgång till Internet, antingen i hemmet eller på jobbet. Det tillsammans med det faktum att befolkningen blir allt mer stressad, gör att dagligvaruhandel över Internet borde ha en möjlighet att fungera i Sverige. I litteraturen jag undersökt har jag funnit ett antal potentiella konsumentgrupper för inköp av dagligvaror via Internet. Tanken på att slippa trängas i butiken, stå i kö och bära hem alla varorna är lockande för många barnfamiljer som gör stora dagligvaruinköp. Unga människor som bor i storstäder och lever ett hektiskt liv och arbetar mycket, ser också Internethandel med dagligvaror som något positivt som de gärna skulle vilja prova på. En tredje potentiell konsumentgrupp för Internetbutiken, som dock inte stressar lika mycket men som ändå kan tjäna på servicen med att få sina varor levererade hem är de som inte har lika stor möjlighet att göra sina inköp själva, t.ex. äldre och de med fysiska handikapp som hindrar dem från att ta sig till butiken själva. Trots att det egentligen finns en potential för Internethandel med dagligvaror har många av de aktörer som gav sig in på den marknaden fått lägga ner sina verksamheter.<br /> <br /> Syftet med den här rapporten är att se vilken roll valet av sekundärbärare har för Internetbutikerna, samt om det finns någon lösning på problemet med sekundärbärarna och hur en bra sekundärbärare i så fall skall se ut.<br /> <br /> Först görs en beskrivning av dagligvarumarknaden i Sverige idag samt en jämförelse av de traditionella butikerna och Internetbutikerna i fråga om konkurrenssituation och förutsättningar för framtida etableringar. Därefter redogörs för ett par intervjuer som gjorts med representanter från dagligvaruhandeln via Internet och förpackningsindustrin i syfte att öka förståelsen för problemet. Utifrån de informationsluckor som fanns kvar efter intervjuerna görs en omfattande litteraturstudie.<br /> <br /> Resultaten ifrån intervjuerna och litteraturstudien visar på att det inledningsvis är klokt att starta upp en Internetbutik som ett komplement till en befintlig traditionell butik. Flera aktörer som startat storslaget med för Internethandeln specialiserade lösningar på plockning och leverans har fått svårigheter att täcka kostnaderna för de stora investeringarna. Om Internetbutiken startar som ett komplement kan stora kapitalinvesteringar initialt hållas nere, vilket gör att Internetbutiken snabbare kan gå med vinst på sina leveranser. Vidare bör Internetbutiken inte begränsa sig till endast<br /> <br /> 2<br /> <br /> ett sätt att sköta leveranserna till kunderna. Om istället flera olika alternativ erbjuds kan kunden själv välja det som passar bäst i fråga om tid och kostnad för leveransalternativet. De olika leveransalternativen jag funnit i litteraturen, är främst:<br /> <br /> 1: Kunden hämtar själv dagligvarorna på ett upphämtningsställe<br /> <br /> 2: Hemleverans med personligt överlämnade av dagligvarorna.<br /> <br /> 3: Kunden har ett eget kylskåp som leveransen sker till.<br /> <br /> 4: Ett antal kunder delar på ett eller flera kylskåp som leveranserna sker till.<br /> <br /> Den sekundärbärare som bör användas för dessa olika leveransalternativ är den som redan finns i den traditionella butiken, nämligen papperspåsen. Den har stora fördelar i och med att den är billig, flexibel, hållbar och relativt miljövänlig. Vidare behöver Internetbutiken inte oroa sig för hur ett eventuellt retursystem med sekundärbärarna skall fungera, utan kunden betalar för papperspåsen och tar därefter hand om den. I vissa fall kan papperspåsen även ge kunden ett mervärde i form av att kunden kan fortsätta använda den även efter dagligvaruleveransen. https://lup.lub.lu.se/student-papers/record/1318626/file/1318627.pdf application/pdf 1045069 no 2003 swe Internethandel Dagligvaror Förpackning Technological sciences Teknik Technology and Engineering 1318626 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318630 2025-07-29T13:03:30Z Technology

studentPublicationsH2 David Segerberg author Gunilla Jönson supervisor Packaging Logistics v1000238 department This report is written about a project with LTI-dough products. LTI stands for Low Temperature Inactive. The LTI-doughs are made with special yeast that stays inactive at low temperatures. All products made of LTI-dough in this project are pizzas.<br /> <br /> There were two main reasons for this project. The present package and handling costs are too high compared with the product costs. The present package is also too small for the newly developed Pan-pizzas, especially for the Italian market with high distribution temperatures.<br /> <br /> The objectives with this project were to analyse different package solutions and to determine the package sizes of the recommended solution. Two suggested package solutions existed at the beginning of the project: one with shrink-wrapped consumer packages made out of corrugated board and another with a corrugated box as transport package and the consumer packages made of cardboard.<br /> <br /> The results from a compression test showed that it was possible to make a third package solution with less material by combining the two first solutions.<br /> <br /> The third alternative solution packages are made of:<br /> <br /> the primary package ? flexible plastic<br /> <br /> the consumer package ? cardboard carton<br /> <br /> . the transport package ? shrink-wrap<br /> <br /> the tertiary package ? stretch-wrapped Euro-pallet<br /> <br /> The new solution was tested in a transport test together with the solution based on cardboard carton packages in boxes. The transport test showed that both solutions were suitable to use, but since the package solution 3 is the most cost efficient solution it is recommended.<br /> <br /> The package sizes were determined based on a dough size test and retrospective calculation from the Euro-pallet. The pallet patterns were made with a pallet pattern calculation program. The primary package sizes still have to be decided but all other packages have their sizes fixed.<br /> <br /> After the transport test an additional compression test was made to evaluate a new placement of the consumer packages and to see how much the simplifications in the transport test effected the compression strength.<br /> <br /> There are still things to improve on solution 3 but the conclusion made, after all the tests, is that it will work.<br /> <br /> The final recommendation is to continue the development of the package solution alternative 3 and to use the developed package sizes. https://lup.lub.lu.se/student-papers/record/1318630/file/1318631.TIF image/tiff 1447080 no 1999 eng LTI-doughs packaging development low temperature inactive Technological sciences Teknik Technology and Engineering 1318630 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318634 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Ewing author Roger Lindgren author Märit Beckeman supervisor Mats Johnsson supervisor Packaging Logistics v1000238 department This master dissertation was made during 2003 at technical package development within Tetra pak R&amp;D AB in co-operation with packaging logistics at Lund institute of technology<br /> <br /> Theoretic material was gathered from internal development reports, public patents, external literature and interviews with experts within the field. We performed smaller test experiments and analysed them using the simple comparative experiment method. Using the gathered information a theory to plan the multi factor experiments was set up. These multi factor experiments was performed in the final folding machine and tested with a light test method.<br /> <br /> The light test is a measurement method that we further developed. It can be used to discover and locate cracks in the aluminium foil. We have also used the light test together with Optimas 6.51 to compare sizes of cracks.<br /> <br /> We found that the biggest cracks appeared in the k-zones and therefore we decided to focus only on improvement of these cracks. The improvements that we have worked with are: https://lup.lub.lu.se/student-papers/record/1318634/file/1318635.pdf application/pdf 1269942 no 2003 eng Package Robustness Cracks Technological sciences Teknik Technology and Engineering 1318634 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318640 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Martin Tostar author Per Karlsson author Ola Johansson supervisor Packaging Logistics v1000238 department This master thesis has been written during the autumn of 2007 and in the month of<br /> <br /> January 2008. It investigates how the Lean philosophy can be used in Warehousing<br /> <br /> businesses. Further it gives example of tools that can help Warehousing companies to<br /> <br /> become Leaner in their business.<br /> <br /> There is a contradiction between Lean Thinking and Warehousing practice today,<br /> <br /> since Lean strive at being just in time with a pull flow with no batching production<br /> <br /> and with preferably no inventory kept between the different processes. This is an<br /> <br /> ideal scenario. In real life there exist variation in demand, uncertainty in lead time and<br /> <br /> long lead times that cannot be fully predicted. This makes a warehouse necessary to<br /> <br /> provide items to the production, assembling or customer in time.<br /> <br /> The warehouses doesn?t add any extra value to the items themselves but only to<br /> <br /> customers by giving it in the time that the customer wants it, in the right amount and<br /> <br /> in the right quality. This makes the processes in the warehouse that is necessary for<br /> <br /> maintaining that ability; necessary non-value added processes. The other processes<br /> <br /> that aren?t necessary are just non-value added processes. The warehouse can also be<br /> <br /> preferred for distribution purposes. But since nothing the warehouse do with the item<br /> <br /> gives it more value in monetary terminology, little handling of the item as possible is<br /> <br /> to be preferred. But as mentioned before there are necessary non value added<br /> <br /> processes and there are those who are just non value added. The goal is to avoid the<br /> <br /> non value added activities and improve the necessary non-value added processes if<br /> <br /> they can?t be avoided as well.<br /> <br /> One way to improve the necessary value added process picking is to place the items<br /> <br /> in a matter that reduce the work for the picker when picking. It could be placing them<br /> <br /> in appropriate heights and on picking frequency to reduce travel time. This could be<br /> <br /> done by an ABC-classification on the picking frequency and dividing the picking area<br /> <br /> into zones depending on the ABC.<br /> <br /> Another way to improve the picking process is to visualize and assign the workload<br /> <br /> as optimal as possible. This could be done with the Heijunka concept together with<br /> <br /> the shipping order logic. https://lup.lub.lu.se/student-papers/record/1318640/file/1318641.pdf application/pdf 1201450 no 2008 eng Lean Warehousing Warehousing ABC-analysis Heijunka Lean Thinking Technological sciences Teknik Technology and Engineering 1318640 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318645 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dan Lennartsson author Peter Månsson author Mats Johnsson supervisor Packaging Logistics v1000238 department Tetra Pak Packaging Material AB (TPPM) is the division within the Tetra Pak concern<br /> <br /> that produces the packaging material that later on will be used for liquid products. There<br /> <br /> are 63 TPPM plants in the world, and the factory in Lund is one of the largest with its 325<br /> <br /> employees. It is also the TPPM factory that manufactures the most varied set of packages.<br /> <br /> There are nine producing machines, divided into three machine groups: printing<br /> <br /> machines, laminating machines and slitting machines. The department of planning at<br /> <br /> TPPM plans the orders with the help of a program called ProPlanner. What they lack is a<br /> <br /> tool to predict the lead times of the planned orders and the capacity of every machine<br /> <br /> during a specific period of time. This tool should complement the ProPlanner.<br /> <br /> To solve the problem we decided to make a simulation program. The reason we did so is<br /> <br /> that there are so many random events that affect the production so it is hard to calculate<br /> <br /> forecasts by using a deterministic method. The software we used is called AutoMod and<br /> <br /> it is a simulation program especially made for simulations of production and materials<br /> <br /> handling. After having studied the processes of production at TPPM, we structured the<br /> <br /> simulation program and collected the data needed for the program. The parameters used<br /> <br /> were:<br /> <br /> ? Set Up times for the machines<br /> <br /> ? MTTR (Mean Time To Repair)<br /> <br /> ? MTBF (Mean Time Between Failure)<br /> <br /> ? Run speed for the different orders in the different machine groups<br /> <br /> ? Planned stops in the machines<br /> <br /> ? Stops during weekends in the different machines<br /> <br /> An important thing for this project was that the user interface of the simulation program<br /> <br /> must be user-friendly. All parameters must be possible to change and to do this we have<br /> <br /> created an easy-to-use Excel interface integrated with the simulation program. The output<br /> <br /> from the simulation is also displayed in this interface. The reliability of the output gets<br /> <br /> higher if more than one run for every simulation is made. It is possible to do 1-100 runs,<br /> <br /> and tests of the program showed that at least 30 runs should be made to get an accurate<br /> <br /> result.<br /> <br /> The simulation program will help the personnel at the department of planning at TPPM.<br /> <br /> They can control if the lead times of the orders, as they are planned, will exceed the<br /> <br /> predetermined due date and if the capacity of the machines are enough. As all results<br /> <br /> from the simulation program are forecasts, there are no guarantees that the future will<br /> <br /> look exactly as the forecasts. If no dramatic events will occur in the production line,<br /> <br /> though, the program will give a good general view of the production in the near future. https://lup.lub.lu.se/student-papers/record/1318645/file/1318646.pdf application/pdf 3825325 no 2004 eng Simulation Forecasts of production Tetra Pak Packaging Material AB Technological sciences Teknik Technology and Engineering 1318645 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318650 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Martin Löfgren author Mats Johnsson supervisor Packaging Logistics v1000238 department Haldex Barnes Hydraulics (HBH) is a company which produces hydraulic aggregates for use in forklifts, construction equipment, and trucks. The last two years the company has expanded. This has lead to an insufficient production of aggregates. Thus wishes HBH to increase their production without making to large investments.<br /> <br /> This report includes a now-state analysis of the problems and where they are. From this a further analysis of possible improvements are made.<br /> <br /> HBH works mainly with assembling and this is made manually. There it is hard to gain any efficiency. The main problem is that employees good at assembling are having to many other tasks, They have to go get materials to often. The company makes differently sized batches. When a batch is finished next one cannot be started right away. Another cause of time lost from the assembling is that the company has a shortage of raw materials.<br /> <br /> There are three ways to increase the productivity:<br /> <br /> ? Material supplier and material optimizing<br /> <br /> ? New warehouse handling system<br /> <br /> ? Communication<br /> <br /> With a material provider the assemblers must not go get their own materials, but can continue with the assembling while the supplier services them with what they need. A few simple calculations show the company gain from hiring a material supplier.<br /> <br /> With a new warehouse handling system with bar codes much of the current material shortage could be eliminated. It would also lead to a better structure in the warehouse.<br /> <br /> Communication is always important. In HBH the communication between the departments is not good enough. This leads to that an error somewhere may never be discovered or taken care of because no one reports it. https://lup.lub.lu.se/student-papers/record/1318650/file/1318651.pdf application/pdf 686505 no 2001 swe increas production haldex batch sizes Technological sciences Teknik Technology and Engineering 1318650 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318654 2025-07-29T13:03:30Z Technology

studentPublicationsH2 David Giang author Matthias Gunnarsson author Mats Johnsson supervisor Packaging Logistics v1000238 department the most obvious problem at Traction today is the in-between handling that demands much time and resources. The reason is that the packages are not designed with handling in mind. Several of the packages of today also have a poor degree of utilization that means there is room for a fewer number of articles. That in turn means more packages, more transports, more storage space and more staff. On the basis of a specification of demands ? which take quality and environmental influence, as well as transport, handling and economy in account ? we have developed suggestions on new packages that will facilitate handling and lower the total costs, The time of handling will in some cases abbreviate to just a few seconds with the new packages. The total cost ? that include the cost of packaging- and handling as well as the cost of transportation ? can be reduced by between one and two thirds for the five products that have got new packages. What is remarkable is that the cost of transport, not the cost of handling, generates the largest part of the profit. The cost of handling with the larger products is on the whole insignificant in comparison with the two other costs. https://lup.lub.lu.se/student-papers/record/1318654/file/1318655.TIF image/tiff 822886 no 2000 swe haldex packaging handling Technological sciences Teknik Technology and Engineering 1318654 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2000-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318659 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Petter Olsson author Christoffer Ousbäck author Annika Olsson supervisor Packaging Logistics v1000238 department Problem Hur fungerar dagens kylkedja för den utvalda frysta produkten? Vilka skillnader finns mellan av företagen beskriven, och faktisk kylkedja? Kan Bioetts system förenkla kvalitetsarbetet i dagens kylkedjor? Kan Bioetts system visualisera brister i dagens kylkedjor?<br /> <br /> Syfte Syftet är uppdelat i tre olika områden: Dels skall det undersökas huruvida Bioetts system kan säkerställa en obruten kylkedja för den frysta produkten, dels skall en studie påvisa om det finns skillnader i av aktörerna beskriven kylkedja, och den faktiska kylkedjan. Till sist skall en hypotetisk modell presenteras för hur Bioetts system kan utformas för att erhålla så mycket nyttig information som möjligt ur systemet.<br /> <br /> Metod Fallstudien kommer att ha en utgångspunkt i att vara kvantitativ genom att ingångsdatan består av statistik i form av avläsningar från Bioetts system. Dock har projektet breddats genom insamling av kvalitativ information. Insamlingen av denna empiriska data har genomförts genom halvstrukturerade intervjuer med respondenter från aktörer i försörjningskedjan, samt genom egna observationer av inre flödestider.<br /> <br /> Slutsatser Studien påvisar att kylkedjan för den frysta produkten inte förblir obruten under distributionen. En kontrollmetod i form av Bioetts system är därmed önskvärd för att visualisera och förhindra temperaturbelastning i kylkedjan. Tilliten för att kylkedjan till stor del är obruten är dessutom alldeles för hög högre upp i hierarkin hos aktörerna.<br /> <br /> Införande av Bioetts system kommer förenkla dagens befintliga kvalitetsarbete. Den viktigaste funktionen som systemet frambringar är att den ackumulerade temperaturbelastningen återges. Dagens kontrollsystem innefattar inte temperaturbelastning tidigare i kedjan. Vidare kommer analys av statistiken från systemet medföra att kritiska punkter visualiseras vilket leder till säkerställd kvalitet. Tyvärr kan vi i dagsläget inte garantera tillförlitligheten i systemet eftersom mer statistik behövs för en grundlig analys av denna.<br /> <br /> För att Bioetts system skall fungera optimalt krävs det dock vidarutveckling av det, samt fler avläsningspunkter i kedjan än vad som finns i dagsläget. https://lup.lub.lu.se/student-papers/record/1318659/file/1318660.pdf application/pdf 3378087 no 2003 swe Kylkedja distribution flödestider livsmedelsförstöring temperaturbelastning kvalitetssäkring kvalitetssystem Technological sciences Teknik Technology and Engineering 1318659 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318664 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ernesto Beltrame author Riccardo Foresto author Mats Johnsson supervisor Ola Johansson supervisor Packaging Logistics v1000238 department Introduction: To gain competitiveness, industrial focuses are addressed towards product quality improvement, product time compression, costs and lead-time reduction. Nowadays, these diverse goals cannot be achieved by an isolated organizational switch but throughout an aimed supply policy. In particular, an integrated view to manage physical goods and virtual information from suppliers to customers through all steps there between has taken place: this is what is named ?Supply Chain?. Managing the Supply Chain has become one of the most important tasks for managers.<br /> <br /> To support it, simulation tools have been developed. The main advantages are in analysing complex systems and assessing their variations and interdependencies.<br /> <br /> Problem Tetra Pak Al TCA is a filling machine addressed to emerging<br /> <br /> Definition: markets into which time to market compression and cost reduction are two imperative issues.<br /> <br /> The tool should try to figure out:<br /> <br /> - Which are the best economic orders batches that both satisfy customer demand for TP Al TCA and that reduce the capital tied up from time to time?<br /> <br /> - Which are the impacts of inventory, safety stock and reduced lead-time in the supply network?<br /> <br /> Purpose: The purpose of this thesis is to develop a too! to manage a complex supply system flow from raw materials to fished products in order to decrease capita! tied up in the chain, lead-time to market and identify eventual bottlenecks in the flow.<br /> <br /> Methodology: The report is both a qualitative and a quantitative case study. There is no intention to extend the findings to different companies or different business units within the same company. Information gathering has been done from interviews, internal Tetra Pak&#39;s intranet in combination with secondary sources. Information from secondary sources was collected from literature, books, brochures and articles in addition to the internet.<br /> <br /> Objective: The objectives with the project are:<br /> <br /> - To build a user-friendly model to be utilized for the analysis of the supply chain<br /> <br /> - Create and evaluate different scenarios<br /> <br /> - Eventual indications of improvement areas<br /> <br /> The desired output is to identify the best economic order quantity to squeeze inventory related costs.<br /> <br /> Analysis and A simulation program has been developed to imitate the<br /> <br /> Conclusions: behaviour of the system. This simulation tool, based on Visual Basic for Application (VBA), is able to detect different output scenarios by varying the inputs of the model and assess quantitative values to the related outputs. A further risk analysis by means of @Risk software- aiming at selecting eventual key-improvement area ? has been conducted. The program has been run according to the actual inputs of the chain. The purpose is to assess quantitative value to the importance of few inputs on outputs occurring and to qualitatively evaluate the risk related the actual situation.<br /> <br /> The suggestions and conclusions of the thesis are:<br /> <br /> - review of the agreement for few component suppliers;<br /> <br /> - a uniform distribution for the orders and an order batch of 80% of agreement seem to guarantee the major benefits for the chain, according to inputs given by Tetra Pak Carton Ambient (TPCA);<br /> <br /> - improvement of forecast for the filling machine, since it affects all the planning activities of the supply network;<br /> <br /> - the introduction of safety stock in the chain may lead to benefits for the global lead-time. Conversely, it increases the tied up capital and the holding cost, because the level of the inventory is higher. The management should decide which the sought task is.<br /> <br /> Further the analysis regards only one branch of supply chain for the developments: filling machine and therefore, refers to only one module of the<br /> <br /> complete filling machine. This is due both to the complexity of fully describing a supply chain of a global company and to the limitedness of time. Anyway, the boundary of the research have been discussed and agreed with Tetra Pak Carton Ambient. A further development could embrace others actors, deliberately omitted in this survey. https://lup.lub.lu.se/student-papers/record/1318664/file/1837868.pdf application/pdf 1132100 no 2005 eng Teknik Technological sciences tetra pak filling machine simulation Technology and Engineering 1318664 2008-06-03T00:00:00+02:00 2011-03-04T12:49:02+01:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318668 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Pålsson author Johan Persson author Gunilla Jönson supervisor Packaging Logistics v1000238 department Iggesund Paperboard Limited works in an increasingly competitive and cost-focused industry. The production is very customised and besides the different product variants some customers also have special requests, which mean activities that fall out of the normal process.<br /> <br /> The contribution system does not identify the additional costs that depend on the special customer requests. The purpose with the project was to identify and when possible quantify these costs, which should give the Finance Department more accurate information. The results should also be a basis to update the models in the contribution system.<br /> <br /> After a mapping of the finishing process and a detailed study of the contribution system, we started to study the special instructions. These are documented as spin (special instruction) codes or special felids in the order program. After a number of interviews we were able to decide which special instructions that added activities. The interviews clarified that many of the special instructions did not add any significant activities. Hence, we concentrated on those that did. We decided only to cost estimate those special instructions that added similar activities for each request. The Activity-Based Costing method was in these cases followed, and besides data from the interviews production data, mainly for the last 12 months, were used. For special instructions, that did not trigger the same activities each time, or had their main influence in other parts of the mill, we did a descriptive analysis. The tabbing cost for the last year was about £5300, yet 30 percent of the tabbing customers represented approximately £4200. The cost per tonne depens on tabbing span<br /> <br /> as well as calliper. A determining factor is also whether the order is automatically or manually tabbed.<br /> <br /> The total cost for the last 12 months for pack face down requests was about £6200 with one customer responsible for almost a third of the cost. Since the cost per pallet is constantly about £1.5, the order cost could easily be allocated to the contribution system.<br /> <br /> Many orders, including standard quantity tolerances, are re-sheeted due to rejected board. Consequently, the estimated annual cost for re.-sheeting, £620000 should not be derived completely to the customer tolerances. However, as the tolerance span declines the share to be re-sheeted increases. Our recommendation is therefore to be more restrictive with allowing new customer tolerances. Since a lot of the re-sheeting could be derived to bad paperboard quality we also suggest that initiative should be taken to improve the quality earlier in the manufacturing process.<br /> <br /> The guillotine cost for salvage solutions for bad board was approximately £73000 the last 12 months. To lower this cost we recommend, in accordance with above, to improve the paperboard quality earlier in the process. The other guillotine costs that are not currently reported to the contribution system are waste costs for trim. The total cost for the last year was about £28000, where a few customers stand for most of the costs. Reporting the waste cost to the contribution system requires the value of the board and a calculation for the wasted paperboard, which is added in the planning system.<br /> <br /> Foil and film customers have very high quality demands and therefore the inspection rate for such orders increases. Hence, the inspections in the finishing process decrease and unsatisfied board might be despatched. Our suggestion is to solve this problem immediately by making other Quality Controllers capable to replace the Shift Quality Controller, We also suggest a further investigation of the costs for foil and film customers.<br /> <br /> New special requests from customers, should be cost estimated on a more regular basis. A proposal is to include the Accounts Section when deciding whether a new special instruction should be accepted or not. https://lup.lub.lu.se/student-papers/record/1318668/file/1318669.TIF image/tiff 896024 no 2000 eng Igesund paperboard workington foil film Technological sciences Teknik Technology and Engineering 1318668 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2000-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318673 2025-07-29T13:03:30Z Technology

studentPublicationsH2 John Erkselius author Mats Johnsson supervisor Packaging Logistics v1000238 department The situation at Plastal AB is following; the plant in Simrishamn has not capacity enough but the plant in Kristinehamn has unused capacity. My task with this master thesis is to build a logistic flow between this two plants, optimize purchase quantities and ensure delivery safety.<br /> <br /> The production of the Intermediate Section (LS) will be divided between the plants. The LS will be produced in the following way; the injection moulding process will be done in Simrishamn and the assembling and lacquering processes in Kristinehamn, The reason to divide the production is to ensure delivery safety. Plastal AB can not move the whole production of the l.S because the two plants have different processes (moulding res. injection moulding).<br /> <br /> When the 1.5 has been transported to Kristinehamn following moments are included in this order; lacquering, welding and assembling. Producing the 1.5 in this order minimises rejected costs and material handling. The factory layout must be altered so it fits the 1.5. According to the analyse the optimum is to move the assemble station (SNICC) to ship five and the 1.5 station should be placed where SN/CC station earlier was situated.<br /> <br /> The customer makes daily CALL-OFFs which includes two fixed days and the rest are just prognosis. This results in high demands on the production process. When there is no possibility to build a safety inventory of finished I.S:s to guarantee one hundred per cent delivery safety, a stock of lacquered LS must exists. It works like a sequence supplier against the assemblinglwelding station.<br /> <br /> The purchase quantities of assembling details and the LS:s are optimised with the Wilson- formula which here also pays attention to transport costs. With the MRP (material requirement planning) system the order points are received and they are formed by the safety inventories. The safety inventories are determined by the lead times of the articles. An ABC-analyse was done on the articles of the stock and its purpose was to minimise transport distances. The stock will be ?half-flouted? which means that an article should be stocked in a specific area but permanently places don?t exist. https://lup.lub.lu.se/student-papers/record/1318673/file/1318674.TIF image/tiff 1254904 no 1998 swe logistiskt flöde produktionsövertag lager Technological sciences Teknik Technology and Engineering 1318673 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1998-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318677 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Christian Ljungberg author Mats Johnsson supervisor Packaging Logistics v1000238 department Syftet med examensarbetet har varit att åstadkomma en ökad omsättningshastighet och en minskad kapitalbindning på 13 strategiskt utvalda artiklar i produkten System 2000 genom att införa Kanbanstyrning. Målet var att kvantifiera nyckeltalen omsättningshastighet, genomsnittlig kapitalbindning och flödets stabilitet genom simulering. Ytterliggare en målsättning var att beskriva de metoder som oftast förknippas med Just In Time och beskriva vad ett ökat leverantörssamarbete medför.<br /> <br /> För att få inblick i existerande produktionsstyrningssituation har studier och datainsamling gjorts på företaget. Detta har gjorts genom intervjuer med berörda, och statistik samling i existerande dokument. Materialet har översatts i en modell vilken har simulerats i programvaran AutoMod och analyserats i programtillägget AutoStatTM.<br /> <br /> 1 System 2000 monterar man höj och sänkbara badkar för rörelsehindrade personer. Badkaren är tänkta att användas på sjukhus och vårdinrättningar för patienthygien och välbefinnande. De är utrustade med duschfunktion och har rengöringsmöjligheter i form av desinfektionsdusch, samt behandlingsmetoder och funktioner för massage och uttaljudsbehandling. Verkstaden där System 2000 monteras kan beskrivas som en produktverkstad. 1 verkstaden kan man urskilja två olika flöden. Det första och största flödet innehåller produkter som höjs och sänks med hydraulolja. Det andra flödet är för produkter som höjs och sänks med vatten. Efter montering i verkstaden packas produkterna och skickas till godsavsändning.<br /> <br /> De 13 artiklarna som valts ut genomgår idag olika moment innan de kan monteras. Momenten är målningsverkstad, de]montage och inget delmontage. De flesta artiklarna delas in som A-artiklar i ABC-analysen och har därmed ett högt volymvärde. Artiklarna är utvalda för att spegla alla potentiella Kanban artiklar, För att kunna simulera förbrukningen av artiklarna analyserades statisk för tillverkade produkter under 12 månader. Ur statistiken skapades en frekvensfördelning av 190 olika artikelnummer. Förutom frekvensfördelningen togs en fördelning fram över antalet producerade produkter per vecka. Vald fördelning blev normalfördelning och beräknat medelvärde blev 63, med en standardavvikelse på 11.<br /> <br /> Efter att ha bestämt nyckeltal till simuleringsmodellen kunde ett nuläge simuleras med Kanbanstyrning baserat på nuvarande ledtider och batchstorlekar. Omsättningshastigheten blev i genomsnitt 4,8 gånger per år (325 dagar/år med ledighet). Den genomsnittliga kapitalbindningen blev 1,7 Mkr.<br /> <br /> Efter att ha bestämt nuläget kunde framtida scenarier med nya indataparametrar simuleras och jämföras med nuläget. Indataparametrarna i form av ledtid och batchstorlek diskuterades fram i samråd med Arjo. Indataparametrarna bildar två olika scenarier vilka benämns scenario Min och Med. När scenarierna var simulerade analyserades materialet. Resultatet blev att majoriteten av artiklarna vid de båda scenarierna Min och Med förbättrade det totala resultatet, men marginalen var knapp. 1 scenario Min förbättrades 8 av 13 artiklar och i scenario Med förbättrades 7 av 13 artiklar. Artiklarna och deras attribut, ledtid och batchstorlek måste således väljas med stor omsorg för att resultatet skall bli lyckat. För att inte förstöra potentialen beräknades ett alternativt scenario där artiklar som försämrade potentialen togs bort.<br /> <br /> Omsättningshastigheten blev 5,6 vid scenario Med och 8,6 vid scenario Min. 1 det alternativa scenariot blev resultatet 8,2 för Med, 10,3 för Min och 3,7 för nuläget. Kapitalbindningen blev 1,55 Mkr vid scenario Med och 1,05 Mkr vid scenario Min. 1 det alternativa scenariot blev resultatet 850 Tkr för Med, 620 Tkr för Min och 1,28 Mkr för nuläget.<br /> <br /> Flödets stabilitet analyserades genom att beräkna spridningen i antalet producerade produkter per dag. Medelvärdet ifrån framtagen normalfördelning var 63. Detta innebär att det i snitt skall produceras 12,6 produkter per dag. Alla scenarierna fick ett medelvärde på ca 12,7, men standardavvikelsen varierade kraftigt mellan nuläget och de övriga scenarierna. Nuläget fick en standardavvikelse på 6,4, scenario Med fick 3,6 och scenario v1in fick 2,9. Detta bevisar att frekventa leveranser hanterar variationer i efterfrågan effektivare vilket är en stor fördel.<br /> <br /> Genom att införa Kanbanstyrning på rätt artiklar kan Arjo vinna många fördelar. Det krävs emellertid mer än att bara införa Kanbanstyrning. Viktiga områden att arbeta med för att lyckas blir processorientering, kompetenshöjning av produktionspersonal och leverantörssamarbete. https://lup.lub.lu.se/student-papers/record/1318677/file/1318678.pdf application/pdf 1575907 no 2001 swe omsättningshastighet simulering batchstorlek Technological sciences Teknik Technology and Engineering 1318677 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318681 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Christina Boström author Mats Johnsson supervisor Packaging Logistics v1000238 department Distrilux International AB, a company within the Electrolux-group, works among other things with storing of products from other companies in the Electrolux-group. This rapport contains a cost analysis of the two Distrilux warehouses in Motala and Mariestad. The company offers five services in these warehouses, in-loading of products from a local factory and from external factories, storing, out-loading of products to Sweden (domestic) and for export. Since there has been some hesitation of the accuracy of the price-model of today, a master&#39;s thesis has been advertised. The purpose of the thesis has been to investigate the agreement of the price-model of today and the apportionment of the costing in warehouses.<br /> <br /> The main problem is to determine which activities is to be considered important in the price-model. Of interest is also an outline of the activities that take place in the warehouses and the time it takes to complete these activities. With this information it is possible to calculate the time and the costing for the five services, which is of big interest to the new price-model. The analysis of the activities in the warehouses follows mainly the ABC-theory, which is based upon the activities that occurs and the cost of these activities.<br /> <br /> The price-model of today is based upon the five services in-loading of products from the local factory or from external factories, storing and out-loading of products to Sweden or for export. The model considers for example number of products, rows of order, which product is handled and the volume of the product. The new model is completely based upon the calculated costing for each activity within respectively service. The new mode! also considers the choice of transportation and if the products are handled as a pallet or as single products. The difference of the apportionment of the costing between the price-model of today and the new price-model is fairly small. Nevertheless there is a important difference within the background of the two models. The new model has distinct explanations of the real costing, and is because of this more easy to follow up. There is no real explanation for the model of today, which is a source of insecurity when working with the mode!.<br /> <br /> In this thesis also a computer-model in Lotus 123 have been constructed, This for making it easier to use and understand the new price-model. Based upon a few simple questions, the model calculates the price of the handling of products in storage. https://lup.lub.lu.se/student-papers/record/1318681/file/1318682.TIF image/tiff 865822 no 1997 swe lagerkostnader Distrilux international AB cost analysis Technological sciences Teknik Technology and Engineering 1318681 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318685 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Björn Lindahl author Johan Wallette author Mats Johnsson supervisor Packaging Logistics v1000238 department Reservdelar till plattvärmeväxlare levereras från Alfa Lavals reservdelslager i Lund. Variationen på de artiklar och emballage som finns är stor liksom de transportsätt som används. Emballaget har en avsevärd påverkan på kostnaderna i logistiksystemet, liksom logistiksystemet på ett motsvarande sätt påverkar kostnaderna för emballaget.<br /> <br /> Alfa Laval har idag en vag uppfattning av vilka kostnader som aktiviteterna kring emballaget och emballeringen genererar. De totala kostnaderna och sambandet mellan kostnaderna i olika delar av logistikkedjan är inte helt kända. Genom ökad kunskap om detta och integration mellan emballaget och logistiksystemet finns möjligheter för Alfa Laval att sänka totalkostnaden.<br /> <br /> Detta examensarbete ska ur ett kostnadsperspektiv kartlägga och analysera emballagets betydelse och kostnadssambanden mellan olika delar av logistiksystemet. Brister i verksamheten presenteras tillsammans med möjligheter.<br /> <br /> Arbetet har genomförts med en förpackningslogistisk syn som integrerar logistiken med emballaget. Den data som ligger till grund för arbetet är hämtade från Alfa Lavals affärssystem och bearbetning av data har utgjort en stor del av arbetet. Detta har kompletterats av djupgående diskussioner med personal som har arbetsuppgifter och kunskap knutna till verksamheten kring reservdelslagret och emballagen.<br /> <br /> Fördelningen av emballagen som används på reservdelslagret visar att det är wellpapplådor, plywoodlådor och wellpapplådor på träpall som är de dominerande emballagen med avseende på både mängder och kostnader. Emballaget har stor ekonomisk betydelse för transportkostnaderna, där sambandet mellan emballagets utformning och kostnader är tydligt. Kurir och flygtransporter dominerar helt de totala kostnaderna framför lastbil, men alla emballage är konstruerade för att klara påfrestningarna fram samtliga transportslag. Vid emballeringen tas det därför ingen hänsyn till hur godset skall transporteras vid valet av emballage. Andra kostnader som behandlas i rapporten är inköp, skador, emballeringsarbetet samt hantering för att nämna några.<br /> <br /> Slutsatserna som vi dragit av arbetet är att emballaget har stor total ekonomisk betydelse på grund av att det påverkar många kostnader i logistiksystemet, eftersom emballaget hanteras i hela systemet. Beroende på de olika emballagetypernas innehåll och egenskaper bör utvecklingen av dessa drivas i olika riktning. Främst mot minskad vikt för plywoodlådor och mot högre fyllnadsgrad i wellpapplådor. Allmänt finns det möjligheter att sänka kostnaderna i logistiksystemet genom att definiera användandet av ett specifikt emballage beroende på innehåll. Det finns även åtgärder som Alfa Laval inte klarar av på egen hand, men som ändå innebär möjligheter till en sänkning av totalkostnaden. Det är kartläggning av informationsflödet vid skador samt att skapa klarhet i samarbetet med transportörerna vad gäller prissättning och modularisering av emballagen. https://lup.lub.lu.se/student-papers/record/1318685/file/1318686.pdf application/pdf 1975360 no 2002 swe Emballage Logistiksystem Reservdelslager Technological sciences Teknik Technology and Engineering 1318685 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318690 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Elisabeth Torssell author Therése Johansson author Ola Johansson supervisor Packaging Logistics v1000238 department Problem Statement<br /> <br /> After the hurricane Gudrun in January 2005 EON Elnät Sverige AB started the project KRAFTTAG, were 17,000 km of the airborne power grid shall be replaced with cables underground. The transformers in the airborne power grid shall be dismounted, renovated if necessary and then conveyed to stations, of type kiosk.<br /> <br /> Additional new transformers, more than planned, have been bought. This is due to the dysfunctional transformer flow from the demolished power supply to projects, were the new power supply is built, the general picture is complicated, since the reconstruction involves other companies and many employees at E.ON.<br /> <br /> Purpose<br /> <br /> The purpose of this master thesis is to map and understand the existing transformer flow. The objective is to make a recommendation on how to increase the level of E.ON? s transformer recycling.<br /> <br /> Method<br /> <br /> the authors have worked with a system approach, including both qualitative and quantitative data. The study of E.ON&#39;s supply chain is based on action research at E.ON&#39;s sites, where gathered data has been received from interviews.<br /> <br /> Recommendations<br /> <br /> The writers have identified five problem areas and come up with possible actions, which together can lead to an increased recycling of E.ON&#39;s transformers:<br /> <br /> The cycle time is too long - means that the time from when each transformer is being dismounted until it can be utilized again in the new power grid is several months, which is much longer (than necessary. The total time of the transformer flow can be reduced by a number of suggested actions.<br /> <br /> Transformers are being scrapped unnecessarily due to rough and superficial scrap criteria in combination with a too low maximum renovation cost. Thus, by upgrading the guidelines and the costs for renovation, more transformers can be recycled instead of being scrapped.<br /> <br /> ? Needs of guidelines and routines - in the supply chain cause several avoidable problems. A more efficient transformer flow can be achieved if E.ON takes a superior responsibility and focus on this area.<br /> <br /> ? Communication and information sharing is a common problem which has obstructed the cooperation in the supply chain and potential synergy effects have not occurred. https://lup.lub.lu.se/student-papers/record/1318690/file/1837873.pdf application/pdf 1542770 no 2007 swe E.ON transformatorer flöde Technological sciences Teknik Technology and Engineering 1318690 2008-06-03T00:00:00+02:00 2011-03-04T12:50:51+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318695 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Järnum author Mats Johnsson supervisor Packaging Logistics v1000238 department Målet med detta examensarbete har varit att på bästa möjliga sätt finna ett truckdatorsystem som kan förbättra arbetssituationen och säkerheten i Movex på förrådet hos Pharmacia &amp; Upjohn Consumer Healthcare i Helsingborg.<br /> <br /> Truckdatasystemets främsta egenskaper skall vara enkelhet, smidighet, lätt utbyggbarhet för framtida behov, samtidigt som det skall fungera med det nuvarande Movex systemet.<br /> <br /> Riktlinjerna som drogs upp för projektets genomförande:<br /> <br /> ? Materialflödesanalys genomfördes och overheadmaterial skapades<br /> <br /> ? Information inhämtades om tänkbara leverantörer på marknaden<br /> <br /> ? Selektering av leverantörer mot upprättad kravspecifikation<br /> <br /> ? Inhämtning av offerter och besök på referensanläggningar<br /> <br /> ? Demonstration och uppkoppling mot Movex på Pharmacia<br /> <br /> ? Prisförhandling, egenskapsbedömning - ordervinnande faktorer<br /> <br /> ? Val av slutgiltig leverantör<br /> <br /> ? Implementeringsplan<br /> <br /> Det slutliga valet som truckdatorsystemleverantör föll på Teklogix. Fördelarna med deras system var bland annat följande:<br /> <br /> ? kompakt, lättplacerad terminal<br /> <br /> ? personalens favorit<br /> <br /> ? stor potential att utveckla ett bra system med inläsning av streckkoder på ett rationellt sätt<br /> <br /> ? kort svarstid mellan terminal och Movex<br /> <br /> ? bakåtkompatibelt samtidigt som systemet har stora framtidsmöjligheter https://lup.lub.lu.se/student-papers/record/1318695/file/1318696.TIF image/tiff 991942 no 1996 swe truckdator Pharmacia & Upjohn terminal Technological sciences Teknik Technology and Engineering 1318695 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318699 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Oscar Tengö author Mats Johnsson supervisor Packaging Logistics v1000238 department SCA Packaging, as a provider of transport packaging, wants further knowledge of the logistics processes a corrugated board box undergoes. This thesis describes the development, the theory and the trial of a method for modelling logistic processes.<br /> <br /> The method is based on a break down of the packaging process, and analysis of the resulting components. The packaging process in its entirety is the main process, which consists of sub processes (Box producer, Distribution centre, Waste handler, etc.) that, in turn, consist of activities (Packing line, Warehouse etc.). The activities are further divided into tasks (Forklift transport, Filling of box, etc.)<br /> <br /> At task level, the method includes measuring a number of attributes of the process. Measuring in away that enable comparison of measures from different parts of the process, as well as from different processes. The method includes definitions and descriptions of these attributes, as well as measuring instructions to achieve appropriate measures, An analyst must fully understand the principles and the aims of the modelling method to be able to comprehend and adjust the measuring to the different situations in a process. The attributes used in the modelling method are; Time, Labour, Waste, Damages, Capital Charges, Issues and Other costs.<br /> <br /> An initial, theoretically composed, method was trailed and further developed through modelling a limited part of a supply chain, the packaging process of SCA Mölnlycke&#39;s plant in Falkenberg. During this case-study, a lot was learned about modelling and measuring problems. A pilot model of the Falkenberg process, was eventually completed.<br /> <br /> Due to the three-step-division of the main process, a user of the ready model can chose which level of magnification to study. For instance, the time spent in each sub process can first be reviewed, the user can then drill down to desired level and find out in which activities and ultimately in which tasks, the time is spent. The same thing can be done with ?Waste?, ?Labour? etc.<br /> <br /> The modelling method presented, provides a structured way of analysing packaging supply chains. It is designed to encourage and empower a holistic approach to packaging solutions, aiming for the optimal solution for the entire chain. This is done through pointing at where in the process different characteristics of a packaging solution are of use, as well as where the handling of a certain type of packaging consumes resources. https://lup.lub.lu.se/student-papers/record/1318699/file/1318700.TIF image/tiff 841004 no 1997 eng corrugated board packaging supply chain Technological sciences Teknik Technology and Engineering 1318699 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1997-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318703 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Markus Thillander author Markus Olsson author Mats Johnsson supervisor Packaging Logistics v1000238 department https://lup.lub.lu.se/student-papers/record/1318703/file/1318704.TIF image/tiff 913464 no 2001 swe Technological sciences flöde Findus Frigoscandia Teknik Technology and Engineering 1318703 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318713 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jonas Karlsson author Gunilla Jönson supervisor Packaging Logistics v1000238 department The objective of this thesis is to increase the organization&#39;s knowledge about Life Cycle Assessment (LCA), so Perstorp Form can organize the development of know-how and meet the demands from customers. An LCA project was initiated to identify? necessary changes as well as clarify how LCA can be used together with other management tools.<br /> <br /> The experience from the LCA study, the so-called Gilde case, shows that:<br /> <br /> Suppliers and customers stand for an extensive part of the life-cycle, so the data collection requires support from those; LCA data are not easily available and much necessary data are not common. The analysis requires expert knowledge about processes and measuring methods. Perstorp Form lacks the intimae resources to support an LCA project.<br /> <br /> The Gilde case as well as the collection of experience from other company&#39;s show that Perstorp Form needs to develop its skills in using LCA to meet the demands from customers as well as utilize LCA in Perstorp Form&#39;s own internal development. Perstorp Form needs to:<br /> <br /> ? Educate all people involved in performing or using LCA studies, including the customers.<br /> <br /> ? Develop an infrastructure for data collection.<br /> <br /> ? Find a way to store and maintain data, e.g. a database, together with concerned parties, such as CPM (The Center for Product-Related Environmental Analysis) and customers,<br /> <br /> ? Establish routines for LCA projects.<br /> <br /> ? Appoint an environmental controller during a transition period.<br /> <br /> ? Cooperate with other plastics manufacturers and the cardboard industry to develop LCA practice and know-how.<br /> <br /> LCA ought to be used with other management tools/philosophies as indicated below. https://lup.lub.lu.se/student-papers/record/1318713/file/1318714.TIF image/tiff 816680 no 1996 eng LCA Perstop Form Glide case Technological sciences Teknik Technology and Engineering 1318713 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318717 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lina Karlsson author Jenny Persson author Mats Johnsson supervisor Packaging Logistics v1000238 department En flygplats består av olika områden och olika aspekter spelar in vid dimensionering av dessa Det är av stor ekonomisk och fysisk betydelse att dimensionering av flygplatser görs på ett så optimalt sätt som möjligt. Stora delar av flygplatsterminalen har studerats noggrant av Luftfartsverket, men ett område där endast statiska beräkningar har gjorts, och således ingen hänsyn tagits till dynamiken, är Fordonstrafiken på tillfartsområdet.<br /> <br /> Problem<br /> <br /> Vår uppgift bestod i att skapa en simuleringsmodell av delar av tillfartsområdet till Luftfartsverket, Modellen skulle ta hänsyn till dynamiken, och med hjälp av modellen skulle maximalt antal fordon som samtidigt vill befinna sig på angöringsområdet tas fram för taxi och privatbilar Angöringsområdet är det område precis utanför terminalen där uppställningsplatser finns för taxi, privatbilar och bussar för att snabbt lämna av eller hämta upp passagerare. Modellen skulle vara uppbyggd så att den fungerar både för flygplatser med en terminal och för flygplatser där inrikes och utrikes är uppdelat på två terminaler<br /> <br /> Metod<br /> <br /> Som en grund till simuleringsarbetet kartlade vi faktorer som påverkar fordonstrafiken på tillfartsområdet, Parallellt under uppbyggnaden av simuleringsmodellen utvecklades ett användargränssnitt och eftersom det var meningen att modellen skulle användas av Luftfartsverket själva så lades mycket arbete ner på att utveckla ett användargränssnitt där Luftfartsverket lätt kan lägga in och variera indata till modellen Simuleringsmodellen förändrades under arbetets gång och det hela slutade med två modeller, en generell modell som fungerar på de flesta flygplatser och en modell som var visuellt anpassad för Landvetter<br /> <br /> Resultat<br /> <br /> För Landvetter och Norrköping flygplats har vi tagit fram värden för maximalt antal fordon vid angöringen för privatbilar och taxibilar. Dessa värden är framtagna för olika scenarier i framtiden, på Landvetter för 4, 5 och 6 miljoner årspassagerare samt på Norrköping flygplats för åren 2005 och 2010. Simuleringsmodellen passar både för flygplatser med en respektive två terminaler Resultaten skilde sig ganska markant ifrån de tidigare statiska beräkningarna, vilket främst beror på att i de statiska beräkningarna sprids fordonsflödet ut jämnt på en timme och bryr sig inte om de riktiga flödestopparna. https://lup.lub.lu.se/student-papers/record/1318717/file/1318718.TIF image/tiff 877004 no 2001 swe Dimensionering Dynamisk simulering angöringsområde Technological sciences Teknik Technology and Engineering 1318717 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318722 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Maria Petterson author Annika Olsson supervisor Packaging Logistics v1000238 department The proportion of meals the Europeans eat outside their home steadily increases. We take coffee breaks at work, eat lunch in the office canteen, we order take-away, we go to cafés or pubs to spend time with our friends, we easily grab a snack in vending machines and we eat on airplanes and trains to just mention a few examples. Eating out is nowadays more of an everyday activity than a luxury event.<br /> <br /> Looking at the longer terms, consumers? willingness to eat out of their home has increased. Higher disposable incomes, new lifestyles, greater choice of eating-out and lower price per meal are factors that have contributed to this.<br /> <br /> As an inherent consequence of the increased competition in the foodservice market, actors in the foodservice market pay more and more attention to cash flow management. Cost awareness brings up questions about logistics optimisation, for example through minimising of storage levels and portion control. Another consequence of the increased cost awareness is the tendency in foodservice to hire lower skilled people.<br /> <br /> Someway or the other, when competition increases new ways to add value to customers has to be found. The package is one way to add more value to a product . The package can make the value chain more efficient .<br /> <br /> There is an opportunity for packaging suppliers to identify downstream needs and offer appropriate packaging solutions . Furthermore, improvements and new innovations in packaging is a way for packaging suppliers to assist their customers in adjusting to the evolving foodservice industry.<br /> <br /> My purpose with this study is to enlighten the meaning of an appropriate package solution. The overall objective is to find important packaging characteristics that will benefit the foodservice market.<br /> <br /> This study is geographically limited to the UK foodservice market. The supply chain that I have studied is from food manufacturers via distributor to contract caterers.<br /> <br /> It is a qualitative study of the foodservice market in the UK. The methods that I have used include literature study, interviews and observations. The interviews have been of an open kind and have been performed among representatives from different steps in the supply chain.<br /> <br /> During my field studies I have discovered a number of characteristics and roles of packaging that are important for foodservice and I have also found out why they are important. I have also identified a number of general problem areas in foodservice and I have tried to see how packaging can be part of the solution for these problems. Furthermore I have investigated what forms the basis for decision of what kind of packaging to pack products in. Finally I have looked at how packaging issues are communicated in the supply chain.<br /> <br /> This study indicates that there is a lack of understanding in foodservice for that packages can actually add value to products. At the same time respondents can give many examples of annoying packaging and of how packaging can be improved. One probable explanation is that packaging applications in foodservice originate from production and distribution demand rather than customer and consumer demand.<br /> <br /> This study suggests that there is not much communication about packaging in foodservice. Considering that this study shows that packaging has big importance in foodservice and that packaging is integrated throughout the whole supply chain, there ought to be a need for more collaboration.<br /> <br /> In short, this study shows that there are great opportunities for packaging to benefit foodservice. https://lup.lub.lu.se/student-papers/record/1318722/file/1318723.doc application/msword 2728448 no 2003 eng Packages Foodservice Supply chain Technological sciences Teknik Technology and Engineering 1318722 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318726 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Fovér author Kenneth Andersson author Mats Johnsson supervisor Packaging Logistics v1000238 department In 1997 Tetra Brik Packaging Systems (TBPS) introduced the Prisma family into the portfolio. The family, which contains four volumes: X ml, 330 ml, 1000 ml and 2000 ml, is characterised by having eight panels at mid height. The new shape of the packages has forced TBPS to make modifications in the equipment and alterations in the distribution chain, from producers to consumers.<br /> <br /> This master&#39;s thesis comprehends four main fields:<br /> <br /> 1. Analysis of consumption material<br /> <br /> 2. Prisma packaging lines<br /> <br /> 3. Consumer&#39;s approach<br /> <br /> 4. Case study of a distribution system<br /> <br /> All consumption material needed in the packaging line is analysed. ln general, the material consumption of the packaging material for the Prisma family is small compared to TBA packages. The TPA packages for each volume consumes 5.0-7.9% less packaging material. The consumption of the tab-strip is 18.5-52.7%, for TXA X Sq and TPA 330 Sq, more and 23.4% less for TPA 1000 S compared to the reference packages for each volume.<br /> <br /> An examination of 20 Prisma lines with the support of the TP Market Companies in France, Germany, Switzerland, Greece and Italy has been carried out. The purpose was to collect information about the distribution chain, and to examine how TBPS recommendations are followed. The conclusion is that the recommendations are not followed as further down in the packaging line that is examined. In the supply chain the recommendations are not followed. For example the choice of secondary packaging is not always followed and pallet stacking is common.<br /> <br /> Two panel tests have been carried out for the volume 1000 ml and the volume X ml. Considering all aspects, e.g. price, functionality, package shape etc., that are important when purchasing a product, the TPA 1000 S was the most popular, due to it&#39;s shape and functionality. In the panel test volume X ml the TXA X Sq was the most popular one. That because the package is comfortable to hold, has an attractive appearance and looks fresh.<br /> <br /> A distribution system has been mapped out focusing on the TPA 1000 S, Identifications about the recommended machines and damages have been done. The further down in the packaging line, more often the recommendations are not followed. Damages like bulged, displaced and compressed trays with TPA packages have been identified. At the producer site pallet, stacking was observed and this may be the reason behind bulged trays and packages. Stretch film wrapping is sometimes too tight around the trays. At a retailer&#39;s warehouse dirty packages have been found on several occasions. The dirty packages were distributed in Open trays. https://lup.lub.lu.se/student-papers/record/1318726/file/1318727.TIF image/tiff 1266288 no 1999 eng Prisma Family Consumption Material Packaging Lines Technological sciences Teknik Technology and Engineering 1318726 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318731 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Rikard Nilsson author Mats Johnsson supervisor Packaging Logistics v1000238 department This is a Master&#39;s thesis, and it is a report on a study on different secondary packaging for the Tetra Brik Aseptic 1500 ml Slim package (TBA 1500 S). At the beginning of this study no installed filling line for the TBA 1500 S package existed. The first line was installed in October. Therefore a similar package was studied, the TBA 1000 S package. Data were collected on this package and then transformed to<br /> <br /> TBA 1500 S.<br /> <br /> Three alternatives of secondary packaging were compared:<br /> <br /> 1. Open tray, Palletized, Stretch wrapped<br /> <br /> 2. Cardboard wraparound, Palletized, Stretch wrapped<br /> <br /> 3. Mega Tray, Palletized<br /> <br /> These alternatives were compared regarding costs and other factors, such as exposure to the consumer and easiness of removal of the package from the distribution unit. To make the comparison of costs fair, the products must be sold from pallet in the outlets. The two first alternatives were studied at existing filling lines and distribution chains in Germany and the Netherlands. The third alterative did not exist when this study was carried out. It was evaluated in parallel with the two first alternatives. Some of the most important factors to study when you choose secondary packaging are:<br /> <br /> ? total cost of the packaging, and the distribution of the costs<br /> <br /> ? type of retail outlets the product are going to be sold in, and the way of expositing the products<br /> <br /> ? transport conditions<br /> <br /> ? distribution system, and standard systems / modules in use<br /> <br /> ? purchasing habits of the consumers<br /> <br /> When studying the costs it is good to bear in mind that the objective of choosing a certain secondary packaging should not be to minimize costs. It should be to maximize profit.<br /> <br /> The value of many of the factors above is in many cases difficult to measure, but they are still of great importance and must be taken in consideration. Because of some problems regarding the field-studies in Germany not all data requested were collected, and therefore that data had to be estimated. But still some general comments could be made.<br /> <br /> Tray concept:<br /> <br /> This was not the concept at the lowest cost, but nor at the highest. This solution is probably the worst regarding damages. The advantage of this concept is when consumers use to buy several packages of one product at each purchasing act.<br /> <br /> Wraparound concept:<br /> <br /> This concept was the best one regarding damages but the most expensive. This concept would be the best if exposure was done with single packages in shelves.<br /> <br /> Mega Tray concept:<br /> <br /> This was the concept at the lowest cost. It is very good for products with a high turnover in the outlets ? if the packages are bought as single ones. One idea is to have multipacks in the Mega Tray. https://lup.lub.lu.se/student-papers/record/1318731/file/1318732.TIF image/tiff 913238 no 1995 eng distribution unit tetra pak secondary packaging Technological sciences Teknik Technology and Engineering 1318731 2008-06-03T00:00:00+02:00 2010-02-01T14:40:03+01:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318735 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Markus Ekman author Michael Rösman author Mats Johnsson supervisor Packaging Logistics v1000238 department Problemformulering Pharmadule-Emtunga behöver upprätta en processkartläggning med tydliga gränsdragningar och fördelningar av olika ansvarsområden då det råder en avsaknad av en sådan kartläggning. Det centrala problemet för detta projekt är att processkartlägga Pharmadule-Emtungas produktion.<br /> <br /> Syfte Detta arbete syftar till att processkartlägga produktionen som ett led i företagets ISO 9001:2000 certifieringsarbete. Arbetet skall utgöra en bas för företaget så att de enklare skall kunna identifiera problem och trånga sektorer i produktionen.<br /> <br /> Metod Då denna processkartläggning är en studie av hela Pharmadule-Emtungas produktionsavdelning medför detta att systemteoretisk vetenskapsteori tillämpas. Fokus lades på en kvalitativ problemlösningsmetod med vissa inslag av kvantitativ metodik, då resultatet skall förklara och beskriva hur hela produktionssystemet är strukturerat. Denna rapport tar avstamp i induktionen. En verklighet skall beskrivas med hjälp av existerande processteorier och modeller. För att kunna uppfylla Pharmadule-Emtungas krav och behov har dock de teoretiska modellerna och teorierna anpassats efter dessa krav. Detta har lett till att ett abduktivt angreppssätt har använts.<br /> <br /> Slutsatser Processkartläggningen i detta projekt kommer att underlätta för Pharmadule-Emtunga att bli en mer integrerad organisation med kontrollerbara och mätbara processer och aktiviteter. Skulle problem uppstå i produktionen kan Pharmadule-Emtunga med kartan som bas identifiera vad som bör ändras och förbättras. Denna utveckling av företaget är nödvändig om man vill ligga steget före sina konkurrenter eftersom kundens krav på kvalitet och ständiga förbättringar hela tiden ökar. https://lup.lub.lu.se/student-papers/record/1318735/file/1318736.pdf application/pdf 677936 no 2003 swe process aktivitet kund objekt in och objekt ut Technological sciences Teknik Technology and Engineering 1318735 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318740 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Fredrik Ragnartz author Gunilla Jönson supervisor Packaging Logistics v1000238 department En kraftig expansion inom Perstorp Components de senaste åren, har inneburit att användningen av emballage ökat och därmed också emballagekostnaderna. Målsättningen med föreliggande studie har varit att undersöka om det är möjligt att reducera<br /> <br /> emballagekostnaderna genom att införa internemballage.<br /> <br /> Arbetet delades in i tre faser. Den första var en identifikationsfas där dagens flöden skulle kartläggas. Därefter analyserades flödena och slutligen jämfördes olika emballagealternativ för att utröna vilka alternativ som var mest fördelaktiga.<br /> <br /> Det vanligast förekommande emballaget i dag kommer från Volvo Transport, som hyr ut emballage. Utöver emballage från Volvo Transport används pallar av olika slag, på vilka vanligtvis lådor av wellpapp placeras.<br /> <br /> Samtliga flöden som är större än 450 m3 per år, samt mindre flöden som kan inkluderas i de större, analyserades för att undersöka möjligheterna till reduktion av kostnaderna genom införande av internemballage. Totalt innefattas 16 flöden i analyserna av internemballage, av vilka tre är mindre. Tillsammans står de för 95% av den totala fraktade volymen, och svarar således för huvuddelen av kostnaderna.<br /> <br /> De alternativa emballagen jämfördes genom ekonomiska kalkyler med dagens emballage. De kostnader som togs med i de ekonomiska kalkylerna för internemballagen var förutom kapitalkostnad, kostnader för returtransport och svinn samt skillnad i fraktkostnad beroende på olika effektivt volymsutnyttjande av lastbilsflaken. För att hitta optimal returfrekvens provades olika alternativ tills den lägsta totalkostnaden hittades.<br /> <br /> Resultaten från kalkylerna visar att en reduktion av emballagekostnaderna ar möjlig mellan enheterna inom Sverige, medan fraktkostnaderna för tomemballaget ofta gör det olönsamt att införa internemballage till Gent. Mot vanlig pallhantering har de alternativa emballagen svårt att konkurrera, även om de hanteringsmässiga aspekterna talar för flera av de alternativa emballagen.<br /> <br /> Förutom de beräkningsbara kostnaderna i de ekonomiska kalkylerna, måste också hänsyn tas till mer svåruppskattade kostnader beroende på det ökade behov av administration, fysisk hantering, underhåll och utrymme som uppstår när internemballage införs. Dessutom behöver det avgöras vilken typ av uppläggning som önskas, innan beslut om ett eventuellt införande av internemballage tas. Det finns företag som helt eller delvis arbetar med dessa frågeställningar. De erbjuder ett stort antal tjänster, från fullständiga upplägg och ägande av emballage till understöd av mindre delprojekt.<br /> <br /> Min rekommendation till Perstorp Components är att införa internemballage på sex flöden. Detta leder till en reduktion av emballagekostnaderna med drygt 800 kkr per år, enligt de ekonomiska kalkylerna. https://lup.lub.lu.se/student-papers/record/1318740/file/1318741.TIF image/tiff 1364152 no 1995 swe kostnadsoptimering emballage perstorp components Technological sciences Teknik Technology and Engineering 1318740 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318744 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Thomas Gustafsson author Mats Johnsson supervisor Packaging Logistics v1000238 department Examensarbetet behandlar kvalitetsproblem som kan hänföras till tillverkning, hantering och montering av kassettätningar System 500. Det har visat sig att orsakerna till läckande tätningar ofta har varit föroreningar inuti tätningarna, ofullständigt monterad fjäder, tryckmärken och skador på tätningseggen, repor på metalldelar och skägg efter formpressning. Som en avgränsning i examensarbetet har de två sistnämnda orsakerna inte behandlats. Repor på metalldelar har uppkommit hos underleverantörer. Att minska förekomsten av skägg arbetas det redan på från annat håll.<br /> <br /> Problemet med fjädern har varit att vara säker på att den finns med och att den ligger rätt inuti tätningen. Efter utvärdering kom jag fram till att det bästa vore att kombinera vägning och breddmätning. En våg kan väldigt enkelt urskilja om en kassettätning har en fjäder monterad eller ej. Men den kan inte berätta om den ligger rätt. Det kan däremot<br /> <br /> breddmätningen visa. Om en fjäder är monterad men ligger fel sticker den formpressade gummi-metalldelen (manschetten) upp ur den först monterade utvändiga metalldelen (locket). Då blir bredden större än vad den normalt skall vara. Det är alltså förbättrad kontroll som behövs och den bör vara kontinuerlig.<br /> <br /> Att försöka förbättra fjäderiläggningen eller monteringen av manschetten i locket för att komma ifrån problemet är inget jag rekommenderar. Dock har jag ett förslag på en maskinell montering av manschetten i locket, om intresse finns från företagets sida. Men jag anser att det är enklare och billigare med kontinuerlig kontroll enligt ovan.<br /> <br /> Det som orsakat tryckmärken på täteggen har varit att manschetterna vidrört eller har legat på varandra när de gått in i eftervulkningsugnen. Problemet är att transportbandet i eftervulkningsugnen går mycket långsammare än transportbandet före ugnen. För att undvika dessa problem är mitt förslag att starta och stoppa bandet före ugnen då fotosensorer känner av att manschetter kan råka vidröra varandra. Start och stopp sköts automatiskt m.h.a. sensorer och en kontaktor (starkströmsrelä).<br /> <br /> Andra skador på täteggen har uppkommit efter manschetternas en meter höga fall från eftervulkningsugnens transportband ner till träbacken på golvet. De är extra känsliga p.g.a. att de är ca. 140 C varma. Vid lägre temperaturer ( &lt; 500 C ) är de mycket mindre känsliga för slag. Dock är fallet fortfarande för högt. Lösningen till det här är att kyla ner manschetterna på ett nytt transportband efter ugnen och minska fallet genom att höja upp backen med stationära lyftare eller på annat sätt höja upp den platsen som manschettema hamnar på efter bandet.<br /> <br /> Något annat som också kan orsaka skador på täteggen är om vassa partiklar fastnar på plastfixturerna som används vid monteringen av manschetten i locket. Plastfixturens ytor är i kontakt med täteggen. För att åtgärda det bör den berörda personalen få information och fixturerna rengöras och ses över regelbundet.<br /> <br /> När det gäller föroreningar finns det många smutskällor i produktionen och minst lika många åtgärder att vidta. Några förslag till åtgärder är bl.a. träback med plastpåse (under förutsättning att manschetterna är nerkylda) och rengöring av rostskyddsolja i olja ekar. https://lup.lub.lu.se/student-papers/record/1318744/file/1318745.TIF image/tiff 1067430 no 1995 swe kvalitetsproblem förbättringsåtgärd system 500 Technological sciences Teknik Technology and Engineering 1318744 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 1995-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318748 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Ekehage author Gunilla Jönson supervisor Packaging Logistics v1000238 department This thesis is divided into two parts (1&amp;2) with different but related scopes, they are both partly a response to Volvo Truck Australia&#39;s (VTA) wish to improve their supply chain. In 1998 this wish resulted in a global benchmark, of VTA&#39;s total inbound transports, being submitted to 13 global transporting companies. Being one of the responding companies, Volvo Transport delegated the different tasks to its subsidiaries Today Volvo Group Logistics North America (VGLNA)are responsible for, and are conducting the consolidation of flows and transports from the 121 suppliers in the US and Canada to VTA&#39;s truck plant in Wacol, Australia.<br /> <br /> In the benchmark, VOLNA included a modelling of alternatives in order to find the most cost and service effective consolidation point in the US. The result of Part I is a formalized way of calculating inland transportation costs from supplier to consolidation point (section 3.5 Inland Transportation Cost (Calculation Method, a choice of consolidation point/points, and an inland transportation cost price table associated with it.<br /> <br /> The final recommendation is a switch from the current consolidation in Chesapeake, Virginia, to consolidation in Dublin, Virginia. For ocean service the recommendation is to stay with Wilhelmsen Lines but, in order to reach a weekly sailing to Australia, complement this with P&amp;O NedLloydfBluestar service out of Los Angeles on the West Coast. In enclosure 1 the inland transportation cost price table is presented for the recommended choice of consolidation point As a result of the construction of the price table an evaluation test of the formalized cost calculation method was possible, this is presented in section 4.9.<br /> <br /> Part 2 is looking at the transportation to Australia from North America from a packaging perspective, how the supply chain can be improved to improve ocean bad factors. Here concentration is paid to the cabs as they have always been a black sheep for VGLNA/VTA as they practically are an eggshell containing mostly air.<br /> <br /> The main recommendation from part 2 is to switch from the current way of shipping cabs on bolster/flat rack to shipping in containers. This change demands a reconstruction of the pallet to secure and protect cabs during transport. This suggested way of transporting cabs opens up a window of opportunity for ?stuffing? cab with goods, most important here is the bumper. An estimation of potential gains is done (section 7.5), this in combination with for 1999 predicted production (250 cabs) sums up to a total potential saving of USS 100,000.<br /> <br /> From part 2 also raises a number of minor adjustments recommended to improve the supply chain:<br /> <br /> ? Enrol more suppliers in the Volvo packaging system<br /> <br /> ? Educate suppliers on how to use Volvo packaging<br /> <br /> ? Respect cut-off times at shipper&#39;s agent https://lup.lub.lu.se/student-papers/record/1318748/file/1318749.TIF image/tiff 857326 no 1999 eng Volvo australia VTA VOLNA Technological sciences Teknik Technology and Engineering 1318748 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318752 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Karin Samuelsson author Mats Johnsson supervisor Packaging Logistics v1000238 department Objective: To study how Schenker can work with packaging related issues to achieve business advantages.<br /> <br /> Problem: How is the package an important part of the supply chain?<br /> <br /> Who should make demands on packaging? Is a transportation company a main actor to help improving packaging?<br /> <br /> Is working with packaging logistics valuable for Schenker?<br /> <br /> Which requirements should the transportation company have on their customers? packaging?<br /> <br /> Method: First a problem definition and objective was formulated. On the basis of this, relevant literature and information was collected. Finally the analysis and conclusions were made in accordance with the thesis objective, frame of reference and collected information.<br /> <br /> Conclusions: Packaging is a dynamic part of logistics. Good packaging can achieve distribution advantages in the entire supply chain. Transportation companies are the actors in the Supply Chain Management whose core competence is logistics. The have the knowledge of distribution operations and its strains on packaging, which they can teach their customers. With better packaging, Schenker creates a more efficient and cost-effective business. By having well-educated packaging employees and a packaging organization that work towards customers with packaging related issues, Schenker creates good will and a decrease of the money paid out in damage insurance money. Below is a list of the thesis conclusions to achieve valuable packaging work at Schenker: https://lup.lub.lu.se/student-papers/record/1318752/file/1318753.pdf application/pdf 1790008 no 2003 eng Packaging logistics information communication leadership Technological sciences Teknik Technology and Engineering 1318752 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318756 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dan Green author Gunilla Jönsson supervisor Packaging Logistics v1000238 department Climate change is considered to be among the most serious threats to the sustainability of the world&#39;s environment, the health and well being of its people and the global economy. The rising levels of greenhouse gases in the global atmosphere are expected to cause a rise in global temperatures. In Kyoto, December 1997, the Kyoto Protocol was written under which industrialised countries have adopted legally binding emission levels at 5.2% below 1990 levels on average. Under this protocol the European Union has agreed to reduce its greenhouse gas emissions by 8% during the period 2008-2012. In practice, this translates into an estimated reduction of 14% compared to the European Commission forecasts, taking into account the projected growth of emissions,<br /> <br /> The Kyoto Protocol outlines three market-based mechanisms that enable countries to meet their GHG commitments at the lowest possible overall cost:<br /> <br /> - International Emissions Trading (IEI)<br /> <br /> - Joint Implementation ØI)<br /> <br /> - Clean Development Mechanism (CDM)<br /> <br /> These three mechanisms do not by themselves reduce the emissions but they can help the countries to achieve the stated targets at a lower cost.<br /> <br /> If each member state within the European Union were to implement its specific target individually, the total annual cost for the EU to reach the Kyoto target could teach some 9.0 billion Euro, With the full use of the mechanism among energy suppliers and energy intensive industries would most likely save the EU almost 2 billion Euro per annum in 2010.<br /> <br /> In the Kyoto Protocol the forest sink is only accounted as the result from direct human induced land-use change and forest activities limited to afforestation, reforestation and deforestation (ARD) since 1990. Harvesting the wood avoids forests getting old and this is of substantial benefit because a young forest has a higher net annual increment and therefore a higher annual C-uptake than an old one. The forest and forest products industry is not only contributing by harvesting the forest, it is also a well-integrated part of the carbon cycle and actively prevent carbon dioxide from being released into the atmosphere by binding the carbon in its products. Once paper products are consumed, they start a new life when separately collected as a secondary raw material or bio fuel. This endless process means that the forest becomes a renewable source of raw material and that the cycle is closed and balanced.<br /> <br /> The effect of new investments is through a calculation model studied at two of SCA&#39;s mills, Mannheim in Germany and Munksund in Sweden. The calculations show that the investment made in the Mannheim mil will have a net outcome on the emissions of carbon dioxide equivalent to a decrease of 32 ktonne. In Munksund the carbon in the feedstock (wood) will either end up as carbon in the paperboard products or as CO2 from combustion in the recovery boiler and the bark boiler, biogenic CO2. In total there will be a 124 ktonne reduction (increased uptake) of carbon dioxide as a result of the reconstruction. It is also worth noticing that the production of green electricity will more than triple due to the change in electricity balance.<br /> <br /> By applying the Munksund case to other countries in Europe the outcome will be vary due to the different CO2 content in the national grid electricity. This will give an effect meaning that if the mill was placed in Denmark instead of Sweden, and the external conditions were the same, the emission reduction would be three times bigger with the same investment.<br /> <br /> With national quotas on green electricity the trading of green certificates between countries would most likely lead to great opportunities for the pulp and paper companies that produce green electricity. This will be a step in the right direction towards the goal of reducing the emissions of GHG at the lowest possible cost.<br /> <br /> The impact of the national energy politic could prove to have a large influence on the possibility of the country, or companies within the country, when it comes to reaching the targets that are set. In some countries there will be large effects on the national grid electricity due to e.g. the closures of nuclear power plants. This means that if the rules for calculating reductions are not set correctly a company can actually decrease their own emissions at the site and maintaining the same grid electricity use, and still not reach their reduction targets. https://lup.lub.lu.se/student-papers/record/1318756/file/1318757.pdf application/pdf 428416 no 2001 eng Kyoto climate change sustainability Technological sciences Teknik Technology and Engineering 1318756 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2001-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318760 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Nilsson author Martin Olsson author Mats Johnsson supervisor Packaging Logistics v1000238 department This examination work is the final work in our education to become a Bachelor of Science in<br /> <br /> Mechanical Engineering by the University of Lund.<br /> <br /> The main purpose with this work has been to develop a new effective material handling system for TPPM AB in Lund since the existing system starts to become out of date. The future system that is going to be installed shall have the capacity to support all machines with unit-, semi- and finished goods during full production. The work has also included studying the possibilities to change the material flow in a positive way between the storage and the production when one is using existing buildings.<br /> <br /> During our work we have been used a simulation program called AutoMod, performing company visits, interviews and reviewed internal and external information to create a picture of what the best conclusion can be. During the work we have contacted five suppliers to receive system solutions and quotatioris. The suppliers, which have been contacted, are Swisslog, Moving, Rocia, Christensen &amp; Hansen and ABB. To be able to receive quotation concerning construction work on the buildings the company NCC, AB Lunds Rörmontering and Systemprojekt AB were contacted.<br /> <br /> Concerning the solution of AGV-system we have reach to that they can be concluded to three which all has laser system for navigation. Alternative 1 is that a new one will replace the existing system after being suited for present production. If this alterative is choosed it also means that the existing material flow and breakdown during wintertime remains. The most common problem concerning the AGV-forklift is that the security equipment is very sensitive against snow. The result of this is that the front bumpers activates and the AGV-forklift stops. Adding problems related to the laser system for navigation are strong sunlight, fog and heavy ram. The amount of AGV-forklifts for this alterative will be 11 where one of them is used to transport foil racks.<br /> <br /> Alterative 2 means more radical changes. To be able to carry out this alterative not only investments in a new material handling system is needed but also changes in existing buildings. To further increase the effectiveness of the material flow the AGV-forklifts working pattern is reversed so the direction is going clockwise instead of anti-clockwise as today. The gains by doing this is that when the AGV-forklift has delivered material at machine 3616 it can also pick up rolls at machines 3612, 3610 and 3616. The system that we are suggesting is a combination of AGV- and conveyor system. In a combination like this the AGV-forklifts are going to provide all the machines with raw- and semi material while the conveyorsystem are going to compensate today&#39;s transports of finished goods on pallets. Since you eliminate all the AGV-transports between buildings 105 and 113 in this alterative and only keep them between the buildings 107, 108 and 111, you can build the problems away concerning the weather sensitivity. The construction work that is current is to build roofs and walls like those who are being used today outside building 108. By doing this we are convinced that one is going to eliminate prior problem concerning snow, fog and sunlight. Since this alternative also bring in changes concerning activities in some of the buildings one also have to make some reconstruction in buildings 111, 113 and in some way even in 105.<br /> <br /> The largest rebuilding are going to be needed in buildings 111, 113 and contains new heat and ventilation equipment, new shipping office and a new loading dock. The amount of AGVforklifts for this alterative will be 7, where one of them is used to transport foilracks. Alternative 3 looks like alterative 1 but means that the forks on the AGV must get extended to be able to transport more than one pallet of finished goods which is the case today. In this alterative earlier mentioned problems concerning heavy ram, fog and sunlight will remain. When we have spoken with AGV-suppliers, this alternative has not been mentioned because the decrease of the AGV-forklifts was not big enough. Though we can mention that if this alternative is choose it wouldn?t involve enormous extra costs to extend the forks. Problems that can occur is a deterioration of the AGV-forklifts moving pattern since it&#39;s length is extended to 2,5 meters which is 0,7 meters more than today. Using telescope forks can of course solve this problem, which fells out during possible pallet transportation but the cost by doing this will increase prominent. The amount of AGV-forklifts for this alterative will be 10 where one of them is used to transport foilracks.<br /> <br /> By choosing alternative 1 the costs will approximately be 9 535 000-11 650 000 SEK excluding tax, where Moving has the lowest price and Swisslog the highest.<br /> <br /> By choosing alterative 2 the costs will approximately be 20 337 500-22 262 500 SEK excluding tax, where Moving has the lowest price and Swisslog the highest. It can though be of interest to notice that the materialhandling equipment in this alterative varies between 8 925 000-10 850 000 SEK excluding tax. As an extra comment to the prices in alternative 1 and 2 it can be worth mentioned that Rocla not have been able to give a price on installation outside normal workingtime. What you can assume from this is that the total price not is going to decrease but more likely increase. Other costs on 11 412 500 SEK excluding tax is bounded to the rebuildings which includes heat- and ventilation costs. These facts are the main reason why alterative 2 is so much more expensive than alternative 1. Though these differences in price are so large one still must consider the advantages that alterative 2 have compared to alternative 1.<br /> <br /> Concerning existing heat and ventilation equipment in building 111 it can be mentioned that it is both old and energy demanding which leads to increased energy costs. If a change of existing equipment is being made, TPPM AB can save approximately 70 000 SEK per year at a temperature of +15 °C. This correspond a decrease of the energy demand by approximately 200 000 kWh per year. An investment in a new equipment is going to mean that TPPM AB receive a heat and ventilation equipment which can be considered both as cost effective and environmental friendly for many years ahead. https://lup.lub.lu.se/student-papers/record/1318760/file/1318761.TIF image/tiff 958494 no 2000 swe Technological sciences Tetra Pak AGV Simulation Teknik Technology and Engineering 1318760 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2000-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318765 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Fredrik Clausson author Mats Johnsson supervisor Fredrik Nilsson supervisor Packaging Logistics v1000238 department The purpose of this study was to identify advantages, disadvantages and aspects that have to<br /> <br /> be considered when implementing Manufacturing Execution Systems (MES).<br /> <br /> MES is a rather new software system, which is linking the business systems in companies<br /> <br /> with the control systems on the factory floor. Today the communications between the<br /> <br /> different levels are mainly managed manually. Through MES the communication is made<br /> <br /> electronically in real time, which reduces the administrative work and the risk for mistakes.<br /> <br /> This study is a qualitative case study. It is based on observations and interviews at Aventis<br /> <br /> Behring, a pharmaceutical company. Personnel in the Final Packaging Department as well as<br /> <br /> other linked departments were interviewed to identify the advantages, disadvantages and<br /> <br /> aspects MES can create. Also theories concerning MES and control were used as a base for<br /> <br /> the work.<br /> <br /> Advantages identified with MES were improved regulatory compliance, improved planning,<br /> <br /> execution and control, safer material flow, improved component location information,<br /> <br /> knowledge generation, improved customer satisfaction, increased transparency, improved<br /> <br /> information flow, documentation problem reduction, improved retrieval of historical data,<br /> <br /> reduced lead-time, reduced cycle time, reduced past due orders, reduced stock levels and<br /> <br /> work in progress, increased quality, reduced administrative work, better support of company<br /> <br /> objectives and improved evaluation possibilities. Another advantage the software has is that it<br /> <br /> consists of several different functions, which enables to build a system that best suits the<br /> <br /> needs.<br /> <br /> Disadvantages with the system are the difficulties to identify and to quantify the benefits and<br /> <br /> costs of the system. The organisation will also have a greater risk exposure and a break down<br /> <br /> in the system can have devastating consequences because no alternative systems can be used.<br /> <br /> A successful pilot project would give indications to proceed expanding the system into other<br /> <br /> organisations. But an unsuccessful project does not necessarily mean that the system should<br /> <br /> not be expanded. There are many factors that are specific in a pilot project and it might be the<br /> <br /> case that the system first becomes beneficial in a larger scale.<br /> <br /> Aspects that has to be considered when implementing MES are for example how to save the<br /> <br /> generated knowledge, reduce the information overload, interface with other systems, saving<br /> <br /> the flexibility, react to changes in regulatory compliance and the financing of the system.<br /> <br /> Pharmaceutical industries are specific for the product value and the high level of regulatory<br /> <br /> requirements. This makes it more beneficial to implement MES in this industry then others. It<br /> <br /> is therefore likely to think that similar industries will have the most benefit of MES, but the<br /> <br /> benefits is shown to be so considerable that the system would be profitable to implement<br /> <br /> within most sectors. https://lup.lub.lu.se/student-papers/record/1318765/file/1318766.pdf application/pdf 5139552 no 2003 eng Manufacturing Execution Systems MES Pharmaceutical Industries Technological sciences Teknik Technology and Engineering 1318765 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318770 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Thomas Petersson author Henrik Rafstedt author Malin Olander supervisor Packaging Logistics v1000238 department Hur kan man skapa en fungerande, kostnadseffektiv distributionslösning för direktleverans med en hög servicenivå för att tillfredställa kund- och konsumentbehovet? Problemet kan delas upp i en teoretisk och en praktisk del. Den teoretiska delen är att det inte finns en generell lösning på problemet. Det praktiska problemet är att företaget vi studerar, Lifebox, idag inte har någon lösning.<br /> <br /> Syfte Huvudsyftet med examensarbetet är att ge Lifebox förutsättningar för en fungerande, kostnadseffektiv distributionslösning med direktleverans med en hög servicenivå för att tillfredställa kund- och konsumentbehovet. Vi har också definierat ett delsyfte vilket är att skapa förståelse för de krav, behov och förväntningar som finns i Lifebox och dess intressenter.<br /> <br /> Metod För att uppfylla detta syfte måste vi använda oss av en metod som möjliggör att vi kan studera ett projekt i förändring och som samtidigt ger en lösning som knyter an till verkligheten i ett så brett perspektiv som möjligt. Vi har därför valt fallstudien som metod då denna möjliggör för ovanstående krav. Fallstudien har genomförts explorativt där all data behandlas kvalitativt.<br /> <br /> Slutsatser För att Lifebox ska klara av att leva upp till kunders och konsumenters krav och behov måste de dra upp tydliga riktlinjer för de samarbetspartners som tas in för att bidra med specialkompetens. Lifebox måste välja samarbetspartners som är villiga att tillsammans utvecklas med Lifebox och som har förståelse för krav och behov från kunder och konsumenter.<br /> <br /> Vi anser att Lifebox gör rätt när de väljer en tredje part till att sköta leverans av produkter men enligt ovan dragna slutsatser måste Lifebox välja en partner som vill samarbeta och har förståelse för konsumenternas krav och behov.<br /> <br /> Slutsatser med avseende på distributionen bygger på att Lifebox måste förstå hur kostnader och service hänger ihop för att erbjuda sina konsumenter lämpliga lösningar.<br /> <br /> Distributionen måste bygga på att https://lup.lub.lu.se/student-papers/record/1318770/file/1318771.pdf application/pdf 2268716 no 2004 swe Direktleveranser leveransservice distributionskostnader kylkedja leveranssätt Technological sciences Teknik Technology and Engineering 1318770 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318775 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Christian Nilsson author Mats Johnsson supervisor Packaging Logistics v1000238 department Många företag idag är inte medvetna om hur mycket de skulle kunna spara om de hade ett väl fungerande materialhanteringssystem. Det finns idag inga standardlösningar för att optimera materialhanteringen hos företag som ger tillräcklig noggrannhet och som företag kan applicera till låga kostnader.<br /> <br /> Genom kartläggning av problemställningar inom svensk industri och handel avseende materialhantering fastställs att den största kunskapsbristen inom materialhanteringsområdet kommer att bli inom lagerhantering. Arbetet begränsas därför till att bara behandla detta område.<br /> <br /> Detta arbete presenterar en generell modell för analys och framtagning av lösningar till lagerhanteringsproblem. Modellen är lättanvänd, lättförståelig och tar inte mycket tid i anspråk. Modellen presenteras som ett enkelt polärdiagram.<br /> <br /> Denna modell blir givetvis inte en perfekt spegling av verkligheten då det är en förenklad modell. Genom att tillämpa teorin i detta arbete kommer resultatet att bli positivt och effektiviteten bättre än vad den är idag.<br /> <br /> Det svåraste i modellen är att formulera målen för den egna verksamheten. För att göra detta måste information fås om andra företag så att det fanns något att relatera till. På grund av detta ser jag den största nyttan med modellen för företag som utför många olika projekt och på så sätt bygger upp en kunskapsbas om effektivitet i olika branscher. https://lup.lub.lu.se/student-papers/record/1318775/file/1318776.TIF image/tiff 1244090 no 1998 swe lagerhantering effektivisering modell Technological sciences Teknik Technology and Engineering 1318775 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 1998-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318779 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Lindskog author Jessica Lundgren author Gunilla Jönson supervisor Packaging Logistics v1000238 department Since the markets of multipacks are growing we have examined the multipacks out of the perspective of opinions, handling / distribution times and costs, and cost of producing multipack both in Sweden and the UK. Our aim has been to develop a research model that can be used for future studies of other multitask markets.<br /> <br /> The research started with a thorough field study of the Swedish and UK markets to get a picture of existing multipacks. The field study included visiting 32 stores of different sizes in Sweden and 9 stores in the UK. After that, interviews with producers in the UK and in Sweden were made. We also interviewed Swedish retailers and carried out a survey with Swedish consumers.<br /> <br /> To get a picture of the distribution and handling in stores we studied the handling events from unloading to cash registering. This study was also used as a foundation for the DPCC (Direct Packaging Concept Cost) study performed in one store in each market. In addition, cost of producing multipacks has been calculated by the help of MECA ( Multipack Equipment Cost Analysis).<br /> <br /> The presentation of the results from the two markets are presented in two separately chapters and are not compared.<br /> <br /> SWEDEN<br /> <br /> In the Swedish market the most common multipack for stilldrinks is the 3-pack 200 Slim, 200 Base and 250 Base with clear film. The level of knowledge among producers and retailers about the multipack concept is low. The retailers are pretty much guided by the assortment offered by the producers, The consumer attitude towards the multipack is positive. The Swedish consumers? strongest arguments for buying multipack are the discounted price on the multipacked product.<br /> <br /> The difference between singlepack and multipack is easily seen in the handling in store. A lot of time and money can be saved by using multipack. Most multipacks in the Swedish stores are placed on pallets directly on the floor, but multipacks are also found on the shelves.<br /> <br /> The far most time consuming event for the store concerning singlepacks and multipacks are cash registering. Considerable time savings compared to the singlepack can also be made when placing the multipack on the shelf and restoring it. The time saving is even greater when using 9-pack instead of 3-pack. Placing the items on floor takes less time and therefore costs less than placing on shelf.<br /> <br /> The calculations, we have made in MECA, concerning costs of producing a multipack in Sweden are based on following:<br /> <br /> ? 3-pack with PE clear film both in TMS 63 and TMS 72 and with label applicated by Rotakett Barcode Applicator.<br /> <br /> ? 3-pack with PE pre-printed film in TMS 72.<br /> <br /> ? 9-pack with PE clear film both in TMS 63 and TMS 72 and with label applicated by Rotakett Barcode Applicator and handle applicated by Tetra Handle Applicator 22. ? 9-pack with PE pre-printed film in TMS 72 and with handle applicated by Tetra Handle Applicator 22.<br /> <br /> The material cost for pre-printed film is 650% more expensive than the clear film, but still the total production cost difference when including labels is not at all that large. The single package in a 3-pack with pre-printed film in TMS 72 is 33% more expensive than the 3-pack with clear film from the same multi shrink machine. The same figure for the 9-pack is 7,5%. When using PE clear film the TMS 72 is the cheapest alternative both for 3-pack and 9-pack.<br /> <br /> The calculations made by the help of DPCC is based on data from the hypermarket OBS in Burlöv. It has been performed with Tetra Brik 250 Base in singlepack, 3-pack and 9-pack on floor, shelf and in refrigerated display.<br /> <br /> According to the DPCC study, independent of placing, the 9-pack is the most cost efficient packaging concept. The totally most cost efficient placement for all packaging concepts are on the floor. The largest expenditures for the store concerning singlepacks and multipacks are cost of order and handling.<br /> <br /> As a conclusion we have shown that in the total cost chain from producer to consumer there are cost savings to be made when using multipack. The largest total savings are made when using 9-pack.<br /> <br /> THE UNITED KINGDOM<br /> <br /> The most common multipacks for portion packed juices and stilldrinks are Tetra Brik 200 slim and 250 base and slim with pack pattern 3x1 and 3x3. 3x1 is usually packed in shrink film, while 3x3 uses either pre-printed film or board wrap. The most common multipacks for juices in Tetra Brik 1000 ml are 1x3 and 2x2 with board wrap. In Tetra Brik milk is found in 4-pack, 6-pack and 8-pack. Overall the most common multipack material is board wrap.<br /> <br /> Multipacks as a concept is chosen by the producers particularly because of marketing reasons - the larger display face and the convenience the customers are offered. Aspects like freshness, flexibility, costs and easiness of handling and storing have a large impact on the consumers? attitude towards multipacks.<br /> <br /> The largest handling time savings for multipack versus singlepack are made within the events:<br /> <br /> placing on shelves, restoring items and cash registering. The time for these events is 1/6 of the total time when handling Tetra Brik 250 Base 9-pack compared to the singlepack.<br /> <br /> The calculations with MECA in the UK are based on:<br /> <br /> ? 3-pack with PE clear film both in TMS 63 and TMS 72 and with label applicated by Rotakett Barcode Applicator.<br /> <br /> ? 3-pack and 9-pack with PE pre-printed film in TMS 72.<br /> <br /> ? 9-pack with board wrap in Certipak Field<br /> <br /> ? 9-pack with board wrap in CP-50 Mead<br /> <br /> The cost of the 3x1 250 Base multipack using pre-printed is 32% more expensive than the multipack out of PE clear film in TMS 72 including label. The total cost of manufacturing the 9-pack out of pre-printed is 40% of the manufacturing cost for board wrap no matter board wrap machine.<br /> <br /> The DPCC study is based on data from unloading to cash registering at a supermarket located outside London. It has been performed with Tetra Brik 250 Base in singlepack, 3-pack and 9- pack and Tetra Brik 1000 Base singlepack and 4-pack both for item and tray stocking.<br /> <br /> Item stocking means a decreased total cost of 25% per 250 B package in a 3-pack and 44% in a 9-pack compared to the singlepack. The differences anse due to the increased time when cash registering and stocking the multipack compared to the singlepack. The total costs decrease with 21% per 1000 Base package in a 4-pack compared to the singlepack when item stocked.<br /> <br /> To reach total economical efficiency with film there needs to be larger multipacks than the 3- pack to split the costs. In the total cost chain from producer to consumer there are cost savings to be made when using 9-pack with pre-printed film. To get the 9-pack with board wrap cost efficient is hard. https://lup.lub.lu.se/student-papers/record/1318779/file/1318780.TIF image/tiff 867568 no 1996 eng Multipack packaging distribution Technological sciences Teknik Technology and Engineering 1318779 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318784 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mirco Negri author Mats Johnsson supervisor Packaging Logistics v1000238 department The importance of E-commerce in the grocery and food retailing is growing and an increasing number of home delivery solutions are being studied. Some observers predict that the consumers will use e-commerce and home delivery services more and more in the future. However, these developments are affected by a number of problems, many of which are not completely understood. This thesis particularly focuses on the environmental effects of b2c e-commerce, and especially on the potential impacts on pollution that can be associated with home delivery practices.<br /> <br /> This thesis aims to compare the environmental impacts of traditional shopping (with a large majority of people using private cars) with a scenario characterized by e-commerce shopping and home delivery. The evaluation is done based on the simulation and analysis of vehicle emissions of CO2, NOx and particles in the atmosphere. The main research questions are as follows:<br /> <br /> - Can the development and implementation of b2c e-commerce (associated with home delivery solutions) benefit the environment, especially concerning vehicle emissions?<br /> <br /> - Under which conditions and with which practical solutions are the environmental impacts of e-commerce more beneficial?<br /> <br /> In addressing these questions a system approach has been used with the purpose of both explaining and understanding the phenomenon. Secondary data has been collected from the literature with a qualitative approach, while the primary data has been obtained by means of case study research (conducted with the support of Lund University, Department of Packaging Logistics) about the emissions of home delivery services in the city of Lund (Sweden).<br /> <br /> The results of the calculations show that, the environmental effects of e-commerce home delivery can be beneficial (i.e. causing a substantial reduction in the emissions of CO2, NOx and particles), on condition that a vast number of consumers do e-commerce instead of traditional shopping.<br /> <br /> The problem is that most customers order by Internet only a limited number of goods (and especially dry, heavy or ?boring? products), but still make car trips to buy the majority of the products they need. In other words, e-commerce can be an additional modality to the traditional shopping, and not a substitute for that. In this case the environmental impacts of e-commerce may be not beneficial, because the emissions of the home delivery vehicles must be summed with the emissions of the cars that go to the store.<br /> <br /> This is the reason why there may be the need for public policies for traffic limitation, or ?environment-friendly? logistic structures to support the development of e-commerce, so that to the new technology can develop with environmental sustainability. https://lup.lub.lu.se/student-papers/record/1318784/file/1318785.pdf application/pdf 2264872 no 2004 eng Technological sciences Food retailing E-commerce Grocery Teknik Technology and Engineering 1318784 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318787 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Michael Byman author Patrik Gustafsson author Fredrik Nilsson supervisor Packaging Logistics v1000238 department Problem Statement: Make the order handling process as well as the purchasing<br /> <br /> process more efficient by constructing a loading application for<br /> <br /> transport of mixed goods in containers and trailers and to put that<br /> <br /> application in a wider packaging logistic perspective by analysing the<br /> <br /> effects of an implementation of this application.<br /> <br /> Purpose: To simplify the order handling process and the purchasing process at<br /> <br /> Trelleborg Wheel Systems and further to put load optimisation in a<br /> <br /> wider perspective. The purpose is also to show ability to apply<br /> <br /> scientific and engineering methodology and ability to apply gathered<br /> <br /> knowledge and skills from courses in the education.<br /> <br /> Method: This thesis is done as a Case Study in order to study real<br /> <br /> circumstances. The approach is qualitative because our aim is to<br /> <br /> understand and analyse the entirety.<br /> <br /> Conclusions: Load Optimisation has never reached as high status as route planning,<br /> <br /> lowered inventory levels and Just-In-Time deliveries in order to<br /> <br /> reduce costs. In the future congestions and regulations may force<br /> <br /> companies to include load optimisation in their strategies to manage<br /> <br /> the global competition. There are however some negative sides of<br /> <br /> load optimisation such as increased noise, increased accident<br /> <br /> severity, higher material handling costs and a need for trade-offs<br /> <br /> between load optimisation and Just-In-Time deliveries and low<br /> <br /> inventory levels.<br /> <br /> The application created during this master thesis improves and makes<br /> <br /> the ordering and purchasing process easier at Trelleborg Wheel<br /> <br /> Systems in Trelleborg. The application is created specially for<br /> <br /> Trelleborg Wheel Systems? products and therefore adapts badly to<br /> <br /> other companies and products. If used in an appropriate way the<br /> <br /> application gives answers to if the specific products fits in the<br /> <br /> transport or not. If desired the application also draws the loading<br /> <br /> pattern to give a possibility to see any free loading space. https://lup.lub.lu.se/student-papers/record/1318787/file/1318788.pdf application/pdf 1696470 no 2005 eng Load optimising mixed loads VBA packaging logistics simulation. Technological sciences Teknik Technology and Engineering 1318787 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318792 2025-07-29T13:03:30Z Technology

studentPublicationsH2 William Jovalli author Gregor Nalepski author Mats Johnsson supervisor Packaging Logistics v1000238 department Problem IKEA want to avoid building a DC with insufficient capacity, and with<br /> <br /> imbalances in the material flow, therefore they want to run simulations of the<br /> <br /> system to see if the material flow is of satisfaction. The focus of this report is<br /> <br /> aimed towards capacity simulations of the Silo, the automated high storage<br /> <br /> area.<br /> <br /> Purpose Run different scenarios of the Silo with different conditions in order to<br /> <br /> evaluate where bottleneck can upraise and aim for optimal solutions with<br /> <br /> retained efficiency in the material flow.<br /> <br /> Method The report is built on both quantitative and qualitative studies. Information<br /> <br /> gathering has been done from interviews and CAD-drawings in combination<br /> <br /> with secondary sources. Information from secondary sources was gathered<br /> <br /> from literature as books, brochures and articles in addition to the Internet.<br /> <br /> Objective Run capacity simulations of the Silo and look for bottlenecks in the material<br /> <br /> flow.<br /> <br /> Conclusion The analysis made of the number of cranes states that four cranes are<br /> <br /> insufficient and five to seven cranes manage the demanded throughput. We<br /> <br /> believe the best solution is to use six cranes. Five cranes manage the flow but<br /> <br /> taken maintenance and breakdowns into consideration six cranes are to prefer.<br /> <br /> Seven cranes do not increase the throughput according to the analysis and<br /> <br /> therefore we find seven cranes unnecessary. Hence six cranes are the best<br /> <br /> solution.<br /> <br /> The analysing of the storage mode and the number of zones in the Silo shows<br /> <br /> differences in the throughput. Though for both cases there cannot be any<br /> <br /> statistically secured results, using the confidence level of 95%. When<br /> <br /> considering the variation of the number of zones we consider the zoning could<br /> <br /> be done in a different way. Because of the fact that there are not SRM&#39;s in<br /> <br /> every aisle the cranes have to change aisles. Using the zoning from the front<br /> <br /> to the back the cranes have to move a long distance when changing aisle for<br /> <br /> the fast-moving articles in the front of the Silo. Instead we believe the zoning<br /> <br /> should be done from the left to the right (or the way around) and the cranes in<br /> <br /> the fast-moving zones should have a crane in every aisle. The other zones<br /> <br /> could share the other cranes. https://lup.lub.lu.se/student-papers/record/1318792/file/1318793.pdf application/pdf 7741976 no 2003 eng Capacity simulations bottlenecks efficiency AutoMod effectiveness. Technological sciences Teknik Technology and Engineering 1318792 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318797 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Malin Rudén author Gunilla Jönson supervisor Packaging Logistics v1000238 department Conventional dairy sections are often small and most customers pass through them quickly. Arla saw this as an under-utilisation and launched a new concept called Dairy Square. This is a store within the store where the temperature is lower, the environment more pleasant for the customer and the interior specially designed to increase sales. The concept has so far been a success.<br /> <br /> Arla have completed an investigation that shows that the Dairy Square increases sales and profit in the dairy section. The purpose of this report is to see if the logistic system built up around the Dairy Square is efficient and whether or not the customers buying patterns changes in the other food sections because of the Dairy Square. The information has been gathered through follow-ups of statistics, a marketing survey and interviews with relevant people.<br /> <br /> Detailed below are the conclusions drawn from the results of this study. It has been determined that there is no difference between the distribution to Dairy Squares and to traditional dairy sections. There are some parts of the product flow, from the dairy to the store that are not as efficient as they could be. The distribution may be made more efficient by increasing the utilisation of the delivery trucks, two drivers could share one truck rather than using one each as they do at present. This will double the time the trucks spend on the road and reduce the amount of trucks needed without affecting the delivery process unduly. The work in the cold storage at Arla can be improved for the pickers by letting the stores only order multiples of secondary packages ? no lose primary packages. This will make the handling easier and the packaging damages in distribution may decrease as the products will be better protected as it will always be distributed in secondary packages.<br /> <br /> There was no evidence to suggest that the Dairy Square was any less effective than a traditional dairy section as a result of having a smaller storage area.<br /> <br /> The study has shown that the majority of packages are well designed. Handling difficulties, distribution damages and production faults were according to the staff in the stores not a major problem and this is supported by statistics from Aria.<br /> <br /> The customers do not change their buying patterns in the rest of the store because of the presence of a Dairy Square. However according to this survey between 20% and 35% of the store&#39;s customers do not visit the dairy section. To increase sales of dairy products the products need to be spread throughout the store so that the customers will notice them without having to visit the dairy section. Placing small refrigerators along the main paths that most customers use may increase sales.<br /> <br /> The conclusion that can be drawn from the survey is that the only factor that increases sales and profit for the Dairy Square is the way that the products are displayed or positioned. To make the dairy section even more profitable, improvements to the logistics system have to be made. This will benefit the end consumer, because of increased service and better products, which will ultimately benefit Arla and the stores that sell their products. At present there is no difference in the logistic system surrounding stores with or without Dairy Squares. https://lup.lub.lu.se/student-papers/record/1318797/file/1318798.pdf application/pdf 427836 no 2000 eng dairy square logistics store Technological sciences Teknik Technology and Engineering 1318797 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2000-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318801 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Niklas Lovén author Joakim Sundqvist author Gunilla Jönson supervisor Packaging Logistics v1000238 department Förändringar i europeisk lagstiftning har gett producenten ett ansvar för återvinning av använda förpackningar. Den nya lagstiftningen skall vara implementerad i de nationella lagarna senast den 30 juni 1996. Inga förpackningar får om fem år introduceras på marknaden om det inte finns ett uppbyggt återvinningssystem. Dessutom ställer lagstiftningen krav på att mängd förpackningsmaterial som används skall minimeras, så att inga förpackningar i framtiden hamnar i deponi.<br /> <br /> Ett sätt att uppfylla lagstiftningen är att ersätta engångsförpackningar med returförpackningar av olika slag. Denna uppsats är resultatet av ett uppdrag från Wascator, vars syfte var att undersöka om det är ekonomiskt möjligt och miljömässigt intressant att införa ett system där förpackningar går i retur vid distribution av kommersiella tvättmaskiner. 1 uppsatsen behandlar vi också ett system där det inte används några förpackningar. Vi begränsar oss i uppsatsen till att studera två specifika tvättmaskinsmodeller samt deras distribution inom Sverige.<br /> <br /> Uppsatsen inleds med en nulägesanalys som ligger till grund för en kravspecifikation på förpackningens utformning. Nulägesanalysen bygger dels på intervjuer med personer på Wascator och dels på våra egna studier och bedömningar.<br /> <br /> Konsekvenserna med ett system där förpackningar skall gå i retur tas upp i ett enskilt kapitel. Karakteristiskt för Wascator är att de har små produktflöden som har stor geografisk spridning, Avemballeringstillfället har stor påverkan på både kostnader och miljö. För att få en ekonomisk lönsamhet i distributionen måste alla flöden inordnas under samma distributör. Detta innebär att en systemlösning för transporterna. i ett system där förpackningar går i retur, måste köpas av ett distributionsföretag.<br /> <br /> 1 vår totalkostnadsanalys studerar vi hur paybacktiden påverkas om den plottas mot förpackningskostnad, returtransportkostnad, rekonditioneringskostnad, administrationskostnad och antalet cykler. Vi konstaterar här att returtransportkostnaden är den kostnadspost som påverkar totalkostnaden mest.<br /> <br /> En generell jämförelse mellan engångs-, flergångs-, och retursystem visar, utan att vara kvantitativ, att det lämpligaste systemet för Wascator, om de vill använda sig av förpackningar, är att behålla det gamla systemet med engångsförpackningar.<br /> <br /> Vi har studerat olika förpackningsalternativ och kommit fram till att det inte är ekonomiskt lönsamt att specialanpassa en förpackning, som skall gå i retur, till tvättmaskinerna. Det är inte heller miljömässigt intressant. För att det skall vara lönsamt med förpackningar som går i retur måste förpackningen meranvändas av andra företag tillsammans med Waseator. Förpackningen måste då ha standarddimensioner. Wascator måste då hitta en samarbetspartner som ?betalar? returtransporten. Eftersom Wascators produktflöden är så komplicerade är det inte ett alternativ. Den enda alternativa lösning som förutom dagens system fungerar i både ett ekonomiskt och ett miljömässigt perspektiv är ett förpackningslöst system. Detta innebär dock att Wascator måste knyta ett avtal med en tredjepartsoperatör samt att delar av produktion och lager måste modifieras. Intervjuer med och studier av Wascators kunder har visat att kunderna inte behöver någon ft5rpackning i sin hantering. Kunderna anser att förpackningen endast behövs under transporten och skulle gärna erhålla produkterna utan förpackningar.<br /> <br /> Vår rekommendation till Wascator är att alternativet till dagens förpackning är ett förpackningslöst system. Då tar man ett steg längre in i framtiden än med ett retursystem https://lup.lub.lu.se/student-papers/record/1318801/file/1318802.TIF image/tiff 791142 no 1996 swe förpackning flöden Wascator Technological sciences Teknik Technology and Engineering 1318801 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 1996-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318806 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Jönsson author Mats Johnsson supervisor Packaging Logistics v1000238 department Cycle time has a direct influence on number of returnable crates needed and therefore a crucial parameter for cost structure and pricing of the user fec in the pool system.<br /> <br /> For providing the growing market, number of crates has to increase as well as the utilization of existing crates. To accomplish this aim, cycle time for the whole supply chain has to be fully unravelled and understand.<br /> <br /> The purpose is to map cycle time and stock movements, to see how, where and when crates are being used in the supply chain. The goal is to make a method of cycle time calculation, together with suggestions of improving the pool system and decrease cycle time.<br /> <br /> The study has been a combination of qualitative and quantitative research and comprises the three biggest wholesalers in Sweden; ICA, Coop and Axfood. Furthermore have 65 grocery shops, connected to the wholesalers, been investigated and mapped.<br /> <br /> The study has come to a conclusion that cycle time for an average returnable crate is 19 days. The full-size and half-size crates have a bit longer cycle time, 21-22 days, while Dual Height-crates and shallow haif-size crates have 17-18 days. The share of transportation and manual handling time is 5 days and the rest of cycle time is in various inventories along the supply chain.<br /> <br /> Additionally ties the supply chain up some 1.35 million crates, in various types of safety stocks.<br /> <br /> Just in grocery shops are about 400 000 crates in use as an internal unit, mainly as a build up-unit<br /> <br /> in displays and as storage-unit in the selling area. Further more tells the calculation that 800 000<br /> <br /> crates doesn?t been used, who can be a hint of size of the wastage. The author has come to a<br /> <br /> conclusion that the wastage per cycle can be estimated to 0.5 %.<br /> <br /> To decrease cycle time and increase the utilization, the author has some suggestions. These are divided into four groups; to maximize the utilization of single returnable crates, to facilitate control and administration, to simplify and improve the daily flow and increase communication within and between different players in the returnable system.<br /> <br /> The biggest potential for decreasing cycle time is to increase the filling rate and use the fittest type of crate, If the tilling rate could increase 5 %, would more than 3 million cycles been avoided. Furthermore have grocery shops no incentives for sorting the reverse flow. If the sorting is done properly, cycle time decrease as well as cost for e.g. transportation and handling. Every player in the supply chain would reflect upon how many returnable crates they handle and use, so a greater awareness appear of how they affect the returnable system. Finally would the suborders, orders and consignments bill be facilitated, in the same time as the visibility within wholesales between wholesalers and Svenska Retursystem enhances. https://lup.lub.lu.se/student-papers/record/1318806/file/1955374.pdf application/pdf 2573287 no 2006 swe omloppstid returenheter cykeltid Technological sciences Teknik Technology and Engineering 1318806 2008-06-03T00:00:00+02:00 2011-05-12T16:04:02+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318810 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Persson author Håkan Persson author Mats Johnsson supervisor Packaging Logistics v1000238 department The 17th September 2001 the distributor Schenker started to cooperate with the computer<br /> <br /> systems manufacturer Dell to deliver Dell&#39;s products to the Nordic market. In the beginning<br /> <br /> of a new cooperation new processes are formed and they are often developed to solve the<br /> <br /> local, immediate problems without considering the overall picture.<br /> <br /> In the distribution network from Dell&#39;s plants in Ireland and Holland to the Nordic customers,<br /> <br /> the cross-docking centre in Copenhagen is a central part as a hub in the network. Almost all<br /> <br /> boxes are distributed through this hub in order to be sorted to one of the nine split point<br /> <br /> destinations located in Norway, Denmark, Sweden or Finland.<br /> <br /> In order to improve the packet hand ling and the effectiveness at the cross docking centre in<br /> <br /> Copenhagen different scenarios have been developed with the simulation tool AutoMod1<br /> <br /> within the boundaries of this master thesis. On the basis of the simulation models various<br /> <br /> changes and how they affect the flow have been studied in order to find a packet handling that<br /> <br /> improves the effectiveness at the cross-docking centre.<br /> <br /> Eight different models have been studied. One original model that shows how the material<br /> <br /> flow is working today, three basic models that include one alteration each in comparison to<br /> <br /> the original model and four models that include all possible combinations of the basic models.<br /> <br /> Today the cross-docking process is divided in three sub processes, one for each of the box<br /> <br /> sizes; small, medium and large. Only the medium sized boxes can use the sorting conveyor<br /> <br /> while the small and large boxes are scanned, sorted and transported manually. The basic<br /> <br /> models are:<br /> <br /> Ø The Värnamo model, which, via an extra conveyor, enables a faster cross-docking of<br /> <br /> the boxes that are going to the split-point in Värnamo, Sweden.<br /> <br /> Ø The Single Process model, where all boxes are sorted by the conveyor.<br /> <br /> Ø The RFID2 model, where all scanning of the boxes is made automatically.<br /> <br /> The flow of Dell&#39;s computers from Ireland to the Nordic market has been studied but only the<br /> <br /> cross-docking centre in Copenhagen has been modelled in Automod. That means that the<br /> <br /> manufacturing sites and the transport ways have not been included in the model. The different<br /> <br /> models? cross-docking time and need of resources have been compared, but no thorough<br /> <br /> comparisons between the costs of the different packet handling strategies have been made.<br /> <br /> The Original model is somewhat optimized to the basic conditions that are equal for all the<br /> <br /> models. Therefore the original model handles the competition from the other models well in<br /> <br /> terms of cross-docking time. On the other hand several of the new models require less<br /> <br /> resources and by that holds potential to enhance their performance.<br /> <br /> In a short-term point of vie w it is realistic to implement the Single Process model if it is<br /> <br /> possible to increase the velocity of the conveyor and do a complete identification of the new<br /> <br /> bottlenecks that will arise. The model uses four resources less tha n the original model but<br /> <br /> gives a longer cross-docking time due to that only one truck is unloaded at a time. A great<br /> <br /> advantage by loading all boxes on the conveyor is that the cross-docking process is equal for<br /> <br /> all box sizes.<br /> <br /> 1 See Section 3.1.2 for a presentation of the software Automod<br /> <br /> 2 Radio Frequency Identification.<br /> <br /> The RFID model has the best performance of all simulation models and uses five resources<br /> <br /> less than the original model. Today the technology for RFID is too expensive and the<br /> <br /> performance is not good enough, but when the day comes that the price and performance on<br /> <br /> RFID is at a realistic level, the organisation and the technologies should be prepared for the<br /> <br /> RFID technology.<br /> <br /> In a long-term point of view the RFID-Single Process combination is the future for the crossdocking<br /> <br /> centre. One process for all box sizes and automatic radio frequency scanning ensures<br /> <br /> that the human errors will decrease dramatically. The potential in increasing the velocity on<br /> <br /> the conveyor and reducing the cross-docking time even more seems to be good.<br /> <br /> The Värnamo model uses one more resource and has the same cross-docking time as the<br /> <br /> Original model. All combinations involving the Värnamo concept can therefore be discarded.<br /> <br /> The adding of an extra conveyor cost money and does not result in higher capacity. https://lup.lub.lu.se/student-papers/record/1318810/file/1318811.pdf application/pdf 3862479 no 2002 eng Box Handling Distribution Simulation Technological sciences Teknik Technology and Engineering 1318810 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318815 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Hector Llop Pla author Mats Johnsson supervisor Packaging Logistics v1000238 department This work has been done for Tetra Pak Distribution (TPD) at the Department of Engineering Logistic at the Lund Institute of Technology. My task was mainly to create a set of simulation models based on the Tetra Pak Distribution Lines. These models are going to be used by TPD to try to analyse the effect of the accumulation systems on the line efficiency. The inputs for the models are failure rate specifications. Main Time Between Failure (MTBF) and Main Time to Repair (MTTR) are required as well as some monetary data (profit per package and cost of the accumulation system). The output information from the models is line efficiency, number of packages produced and value of this missed production (always by comparing different models). By getting this information, payback time of each accumulation system in each condition can be calculated.<br /> <br /> Nowadays simulation software offers great possibilities to the companies for creating computers models that work exactly as the real system, whichever this system would be. These simulation techniques would be used in many fields at one company. It could be used to represent production lines, as in this case, but it can also be used for new products, machines or services development. And not only for development but also for old lines or products improvement.<br /> <br /> In this global world and market in which development and service times have been drastically reduced, simulation is a very powerful tool to decrease these cycles. It would help because using this, a modeller can easily and fast change many parameters of the simulation model, and then get the results without wasting time and money in preliminary designs and test.<br /> <br /> With this Automod Simulation Software, models can achieve a great realistic appearance because of the 3-D graphic animation. Due to that they can be used as a marketing tool for the customers and it is easier for everyone to understand how they work.<br /> <br /> An Excel Visual Basic macro has been created. It acts as a user interface and allows an easy and fast communication between the models and the final user. This is necessary because the user is not familiar with the simulation software and at the same time, the models are not static. Some input is required. Some parameters (MTBF and MTTR) should be specified and changed to get results in different situations and analyse them. Sixteen different models have been developed to cover quite a big range of the new machines and filling lines market by Tetra Pak Distribution nowadays. The important thing in here is to be able to compare results from the same kind of line (same standard line) but with different accumulation system. This can test many different line situations.<br /> <br /> Defining the failure rate of each machine (MTBF) and the time it is going to be down (MTTR) as statistical distributions allows the user to test a great range of possibilities. The use of statistical distribution adds certain randomness to the models, but if correct distributions are chosen, average results from the model should be the same as the real system ones. It is possible to compare models results and see with is the line efficiency gain (in number of packages produced) when adding an accumulation system. It is important to run always first one of the standard lines without accumulation system with a set of parameters. Obtain the results and then run the same standard line with an accumulation system and with the same parameters. It is possible to do like this with all the accumulation systems and obtain results from all of them.<br /> <br /> Then, the analysis of these results is not an easy task. Many parameters affect the outputs and some knowledge about the inputs and how they affect the models behaviour are needed. This is something for the people at TPD. https://lup.lub.lu.se/student-papers/record/1318815/file/1318816.TIF image/tiff 1003998 no 1999 eng Simulation Distribution Tetra Pak Technological sciences Teknik Technology and Engineering 1318815 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1318819 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tommy Hansson author Thomas Johansson author Daniel Hellström supervisor Ola Johansson supervisor Packaging Logistics v1000238 department Problem Hur förhåller sig den nuvarande axelprocessen gentemot den<br /> <br /> kommande linjebaserade axelprocessen utifrån ett synsätt grundat i<br /> <br /> Lean Production och vilka möjligheter till förbättringar finns?<br /> <br /> ? Hur ser den nuvarande axelprocessen ut?<br /> <br /> ? Vilka problem finns i den nuvarande axelprocessen?<br /> <br /> ? Vilken inverkan har problemen på den kommande<br /> <br /> axelprocessen?<br /> <br /> ? Finns det potential för förbättringar i den kommande<br /> <br /> axelprocessen?<br /> <br /> Vilken produktionsmix av axlar ger den minsta buffertnivån mellan<br /> <br /> axelmåleriet och axelmonteringen med bibehållen kapacitet?<br /> <br /> ? Hur fungerar dagens måleri process?<br /> <br /> ? Hur många varianter finns det av varje axel och vad ställer<br /> <br /> det för krav på måleriprocessen?<br /> <br /> ? Vilka parametrar är det som styr buffertnivån?<br /> <br /> ? Vilken felfrekvens har de olika delprocesserna i måleriet?<br /> <br /> Syfte Studiens första syfte är att jämföra den nuvarande och den kommande<br /> <br /> axelprocessen utifrån ett perspektiv grundlagt i produktionsstrategin<br /> <br /> Lean Production och genom analysen föreslå förbättringar av den<br /> <br /> kommande axelprocessen.<br /> <br /> Det andra syftet är att föreslå en produktionssekvens av axlar för<br /> <br /> måleriet som minimerar buffertstorleken i axelprocessen.<br /> <br /> Metod För att på ett fullgott sätt lösa problemen i detta examensarbete krävdes<br /> <br /> det att två olika typer av metoder användes, en fallstudie samt en<br /> <br /> simuleringsstudie. Två metoder möjliggjorde triangulering samt gav<br /> <br /> synergier i datainsamlandet. Både kvantitativ- och kvalitativ data ligger<br /> <br /> till grund för studien.<br /> <br /> Slutsatser Fallstudien visar att det framtida upplägget av axelprocessen är bättre<br /> <br /> ur ett Lean Production perspektiv än det nuvarnade. PIA, ledtiden samt<br /> <br /> distansen minskar samtidigt som andelen värdeadderande tid ökar, se<br /> <br /> tabell 3 nedan. Trots detta resultat finns det en stor potentiell förbättring i<br /> <br /> buffertnivåerna, en minskning av buffertnivåerna skulle förbättra<br /> <br /> resultaten för den framtida axelprocessen avsevärt. Det utpräglade<br /> <br /> avdelningstänkandet skapar samtidigt problem i processen i form av<br /> <br /> exempelvis suboptimering.<br /> <br /> Fallstudien påvisar även att det finns stora svängningar i<br /> <br /> ordervolymerna uppåt längs flödet, så kallad bullwhip-effekt. En starkt<br /> <br /> bidragande orsak är orderhanteringen i stora batcher av vissa typer av<br /> <br /> axlar. Svängningarna i ordervolymen skapar problem för leverantörerna<br /> <br /> att bibehålla Tuves inplanerade produktionssekvens.<br /> <br /> Transportutrustningen möjliggör samtidigt inte att trailers lastas fulla<br /> <br /> med bibehållen sekvens vilket ytterligare ökar sekvensproblemen.<br /> <br /> Dessa problem kommer att bli ännu mer påtagliga i den framtida<br /> <br /> axelprocessen eftersom den är mer störningskänslig än den nuvarande<br /> <br /> processen. För att erhålla rätt sekvens krävs samarbete med<br /> <br /> leverantören kring dessa problem.<br /> <br /> Den rekommenderade produktionsmixen för måleriet utifrån<br /> <br /> simuleringsstudien visas i tabellen nedan: Den valda produktionsmixen presterade likvärdigt, om inte bättre, än<br /> <br /> alla andra simulerade konfigurationer samtidigt som den innebär flera<br /> <br /> fördelar. Exempelvis är styrningen enkel vilket förenklar för personalen<br /> <br /> i intaget samtidigt innebär den att personalbesparingar kan genomföras.<br /> <br /> Personalbesparingar kan genomföras eftersom det är möjligt att gå ner<br /> <br /> till två-skift på de två nedtagen i måleriet.<br /> <br /> Resultaten av simuleringsstudien pekar liksom fallstudien på att<br /> <br /> störningskänsligheten i måleriprocessen är hög. Måleriprocessens<br /> <br /> utformning medför att det är intaget som bestämmer cykeltiden för<br /> <br /> flödet av ?Göteborgsaxlar? ut ur måleriet. Därför bör det läggas<br /> <br /> resurser på att förbättra försörjningen av axlar från intaget till måleriet.<br /> <br /> Simuleringsstudien har även visat att måleriets störningskänslighet ökar<br /> <br /> på grund av att bufferten för en viss typ av axlar är liten och när denna<br /> <br /> buffert är full blockeras flödet för alla typer av axlar. https://lup.lub.lu.se/student-papers/record/1318819/file/1318820.pdf application/pdf 1707653 no 2004 swe Värdeflödesanalys Simulering Lean Technological sciences Teknik Technology and Engineering 1318819 2008-06-03T00:00:00+02:00 2010-02-01T14:40:04+01:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1543361 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sebastian Ferrada Ibacache author 1543360 Haris Omeragic author Dr Mats Johnsson supervisor Packaging Logistics v1000238 department A packaging company is currently evaluating their production and searching for development opportunities to make the production more effective. At the facility for packaging materials there is a production line with two machine-groups consisting of two printers and one laminator. In the present situation the two machine-groups are disconnected from each other by the use of an inventory. <br /> <br /> The purpose with the thesis is to make the production of packaging material more effective by mapping the production process and finding ways to reduce the buffer between the two machine-groups, in order to reduce lead time and achieve a streamline flow through the production line. A Discrete-event simulation model will be developed by using the software Simul8 that enables the company to test different setups and scenarios.<br /> <br /> The study is limited to examine one production line that consists of two machines, a printer and a laminator.<br /> <br /> First a discrete-event simulation model of the production line as it is today will be developed. After a satisfactory model of the real production line has been developed a new model will be developed consisting of one printer and one laminator. This model will be the first scenario and the base model throughout the study and other scenarios will be tested and evaluated based on this model.<br /> <br /> During the period that the study covers the total production was approximately 12 500 km of paper material. The output of the simulation model representing the real world process is 12 100 km. In scenario 1, one of the printers is removed and one printer and one laminator are left running continuously which yields an output of 9 800 km. In scenario 2, the average run speed in the printer is increased, by benchmarking a facility of the same complexity as the one covered in this study, which yields an output of 10 500 km. In scenario 3, the variation and mean time of two setups in the printer, the sleeve change and the creasing tool change, is reduced which yields an output of totally 10 000 km. In scenario 4, the stops Lack of Resources time, Waiting for Approval time, Cleaning time and Force Majeure time in the machines are removed which yields an output of 10 100 km. In scenario 5, scenarios one through five are all included simultaneously which yields an output of 11 200 km. <br /> From the simulations it can be concluded that by improving different parameters the total output of the production line can be increased. However, the improvements made in this study are not sufficient to compensate for the output loss resulting from removing one of the printers. The study’s purpose is to provide an understanding of the production line and find important parameters that result in a more effective process, that can be seen as a base and help to the company if they want to continue working with these suggestions. https://lup.lub.lu.se/student-papers/record/1543361/file/1566415.pdf application/pdf 1590554 no 2010 eng input analysis Discrete-event simulation Simul8 statistical process control Technology and Engineering ISRN 10/5075 1543361 2010-02-05T11:19:15+01:00 2010-03-09T15:11:16+01:00 2010-03-09T15:11:16+01:00

oai:lup-student-papers.lub.lu.se:1543438 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH2 Cong Li author 1543421 Stephen Nwokoli author 1543443 Tetra Pak Erik Nordström Matthiessen supervisor Associate professor Rolf Larsson supervisor Division of Water Resources Engineering v1000225 department Freshwater of good quality is important, even necessary, for human society as well as natural ecosystems to function. However, the uneven distribution of freshwater globally together with other problems such as over-population and pollution all contribute to water stress and water scarcity in many countries. These issues are getting worse and worse. A growing number of companies and organizations have started to recognize the importance of water to their business and have started programs to improve the sustainability of freshwater in their processes.<br /> Virtual Water (VW) is a method used to measure the impact of water trade between countries and businesses. Life Cycle Analysis (LCA) is one of the ways to assess the impact of product on the environment. The concept of a “water footprint” has been developed and defined for countries, businesses and products. More than just being a total figure for the volume of water used in a process, it specifies the type of water used (blue, green or grey water) as well as when and in which process the water is used.<br /> The “Tetra Pak value chain” is a term that describes the water usage from the raw material to the finished product, involving suppliers, Tetra Pak themselves as well as the customers. Both quantitative and qualitative research methods were used in this project to understand the water footprint in the Tetra Pak value chain.<br /> This report develops the explanation of “water footprint” and discusses the difference between gross green water, net green water and embedded water. The concepts of “water use” as opposed to “water consumption” are developed to assist the understanding of the main water processes at Tetra Pak. A water footprint model for the Tetra Pak cartons is presented.<br /> When determining the green water footprint within the Tetra Pak value chain the choice of calculation method is of utmost importance. The difference between the gross green water footprint and the embedded water footprint is observably large. This is one of the major findings described in this report. Gaps in Tetra Pak data collection and challenges connected to the water footprint throughout the production processes are discussed with the aim to assess and understand the impact on the environment. https://lup.lub.lu.se/student-papers/record/1543438/file/1543442.pdf application/pdf 1692548 no 2010 eng Tetra Pak embedded water Water footprint carton package Earth and Environmental Sciences Technology and Engineering 1101-9824 10/5003 Examiner: Linus Zhang 1543438 2010-02-05T16:25:09+01:00 2019-03-27T13:55:11+01:00 2010-02-19T09:29:06+01:00

oai:lup-student-papers.lub.lu.se:1543838 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Maria Karlsson author 1543837 Sandra Martinsson author 1543695 Hans Hanson supervisor Division of Water Resources Engineering v1000225 department Problemformulering: Landskrona stad är en av många kustnära städer som riskerar att<br /> drabbas hårt av en stundande klimatförändring. Den höjda havsvattenytan kommer leda till<br /> ökad erosion och en förändring av kustlinjens lokalisering på många platser. Redan idag finns<br /> upplevda problem med en tillbakadragande kustlinje. Vissa av kommunens områden är<br /> mycket låglänta och riskerar att översvämmas även under nutida förhållanden. Detta problem<br /> kommer med stor sannolikhet att bli mycket större i framtiden, då högvattenstånden kommer<br /> att öka. Detta leder sammantaget till att stora ekonomiska värden riskerar att sättas på spel och<br /> många viktiga samhällsfunktioner kan temporärt slås ut.<br /> Syfte: Syftet med denna studie är att studera hur kustlinjen utmed Landskrona kommun har<br /> förändrats över tiden samt att analysera befintliga data för att kunna studera hur situationen<br /> ser ut idag med tanke på vindar, vattenstånd, vågklimat och uppspolning. Vidare görs<br /> prognoser för hur situationen kommer att se ut i framtiden. Dessa prognoser ligger till grund<br /> för beräkningar av sedimenttransporten i framtiden på kritiska delar av kuststräckan. Projektet<br /> syftar även till att studera hur en ökad havsnivå kommer att påverka Landskrona med tanke på<br /> översvämningsrisker.<br /> Metod: Vind- och vattenståndsdata från SMHI analyseras för att beräkna vågklimat,<br /> uppspolning och erosion. Prognoser görs utifrån existerande trender och befintliga<br /> forskningsresultat. Där inga tydliga prognoser finns har scenarion valts för att illustrera<br /> känsligheten hos systemet. Kommunens flygbilder analyserades för att uppskatta kustlinjens<br /> förändring över perioden 1940 – 2008. Kustprofilmätningar och observationer gjordes på<br /> valda lokaler utmed kuststräckan. Digitala höjdkurvor från kommunen användes för att<br /> genomföra en översvämningsanalys.<br /> Slutsats: Erosionsproblem har noterats längs med vissa partier av kuststräckan. Framförallt<br /> de norra delarna av kommunen förefaller att vara utsatta för erosion. Dessa delar av<br /> kommunen har ofta bebyggelse nära kusten, vilket kan bli problematiskt i framtiden. Även<br /> uppspolningen kommer med stor sannolikhet att orsaka problem i framtiden, framförallt på<br /> grund av den höjda medelvattenytan. En ökad vindhastighet under vintermånaderna kan ha<br /> betydande inverkan på den erosion som uppspolningen orsakar. Den kustparallella transporten<br /> ökade vid vissa lokaler markant i förhållande till den marginella förändring av vindstyrkan<br /> som gjorts.<br /> De extrema högvatten som beräknades för framtiden förhållanden, visade sig orsaka stora<br /> problem för Landskrona stad. El- och avloppsnätet visade sig vara mycket utsatt vid framtida<br /> högvatten högre eller lika med 10 respektive 100 års återkomsttid. https://lup.lub.lu.se/student-papers/record/1543838/file/1543839.pdf application/pdf 13511837 no 2010 swe vågor klimatförändringar översvämningar Landskrona erosion uppspolning. Technology and Engineering 1101-9824 10/5002 Examiner: Magnus Larson 1543838 2010-02-09T11:59:22+01:00 2019-03-27T14:03:18+01:00 2010-02-11T12:17:12+01:00

oai:lup-student-papers.lub.lu.se:1544265 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH2 Malin Rosenberg author 1544264 Kristofer Stålhammar author 1544267 Lars Bengtsson supervisor Division of Water Resources Engineering v1000225 department A study of heavy metals in surface and groundwater was conducted in Poopó and Antequera River basins in Bolivia. Problems with high levels of heavy metals in waters on the Bolivian high plateau have been known for many years and are to a great extent the cause of the mining industry in the region. In this study, ten sampling sites of surface waters and twelve observation wells monitoring the groundwater were measured in September and October 2009, which is the end of the dry season. The results show that in the Poopó River, the water is mainly affected by two factors; a thermal spring and a mining processing plant with its waste deposits. The water quality upstream of these contributions is good regarding most elements. The levels of Al, As, Cd, Fe, Pb and Zn are high in Poopó River, where the arsenic concentrations are believed to be mostly of natural means originating from the thermal spring. When it comes to Cd, Pb, Ni and Zn the major input to Poopó River is acid rock drainage or the contribution from the mines close to the village. The groundwater downstream of Poopó Village is of quite poor quality, especially near a pond close to a train station. It was found to have high levels of Cd, Cu, Ni and Zn. Further out on the plains there is no anthropogenic contamination, but the concentrations of As is very high. This is due to the arsenic rich geology. In the<br /> Antequera River basin, the water quality in the river and groundwater upstream of a<br /> tailings dam is relatively good and could be used as drinking water, but only if it is treated for the high levels of arsenic. Downstream of the large mine tailings the water quality in both the surface waters and groundwater is very poor in the consideration of the heavy metals of Cd, Al, Cu, Fe, Ni and Zn. As is believed originate naturally from the arsenic rich geology. https://lup.lub.lu.se/student-papers/record/1544265/file/1545562.pdf application/pdf 3437999 no 2010 eng thermal spring surface water groundwater mining heavy metals Antequera River Lake Poopó Poopó River arsenic Technology and Engineering Earth and Environmental Sciences 1101-9824 10/5001 Examiner: Magnus Larson 1544265 2010-02-10T19:20:45+01:00 2019-03-27T14:04:19+01:00 2010-02-17T07:09:36+01:00

oai:lup-student-papers.lub.lu.se:1544510 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Pau-H Rivera author Ola Carlqvist supervisor Innovation v1000241 department Formula Student is an international inter-universities competition about designing and<br /> building a single-seater racing car. One of the most important parts in a car is the<br /> suspension system, from the tires to the shock absorbers. This Master Thesis’ report goes<br /> through all these parts, looking to theory, different design options, the constraints (rules,<br /> economical, packaging, etc) and the final decisions and designs. All motivated within the<br /> suspension area in LURacing Team, for designing and building the LUR3, the third<br /> Formula Student car of LTH-Lund University.<br /> The initial idea was to design a completely new suspension for the new 2009 car, but for<br /> timing and economical reasons it has been only a redesign of the existing suspension<br /> system. But as it will be shown, new rules and frame will affect considerably the design<br /> and most of the parts may be redesigned. https://lup.lub.lu.se/student-papers/record/1544510/file/1544517.pdf application/pdf 8071120 yes 2009 eng suspension car FSAE Formula Student design Technology and Engineering 1544510 2010-02-11T15:07:22+01:00 2010-02-11T15:16:22+01:00 2010-02-11T15:16:22+01:00

oai:lup-student-papers.lub.lu.se:1544519 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Carl-Johan Strömberg author Anders Johansson author Professor Robert Bjärnemo supervisor Innovation v1000241 department The main purpose of the project has been to find the root cause to the failure of a machine component used to secure some vital parts (later on referred to as the pins) of a packing machine. It was already known that the failure had to do with fatigue, but the actual mechanisms were quite unknown. Measurements on the components did not indicate forces that should lead to failure.<br /> The components of interest are mainly a filling pipe with an attached flange. The flange is secured to the pipe with two pins. The package is then formed around the flange, filled, formed to its final shape and finally sealed and cut off. Whenever the second forming stage takes place forming flaps are folded up, thus producing a mass movement within the fluid. This energy is transferred to the flange and of course the pins.<br /> The work was carried out in mainly three steps. First an investigation and compilation of known facts was done. The most significant result of this was the visible large wears and deformations on the used pins. Thereafter some brainstorming led to the development of a theory, or chain of events, that could lead to failure. The last step was to verify the theory with simulations with the help of FEM software. These simulations gave at hand that even a very small gap in the contact between the components could give rise to significant large stresses in the material, leading to a failure of the components.<br /> The failure mechanism is depending upon the fact that all existing designs give rise of forces when in contact with the lower filling pipe, thus stressing the pins. Therefore an alternative pin design, eliminating this phenomenon, is presented as a replacement. The report also includes a CFD-analysis in order to get a better understanding of the forces acting on the flange during a normal machine cycle. The results from other FEM-analysis showed that dangerously high stresses arise already at small deformations with forces that are transferred from the fluid. https://lup.lub.lu.se/student-papers/record/1544519/file/1544520.pdf application/pdf 6001166 yes 2009 eng fatigue failure pin AISI 316L filling machine flange FEM root cause mechanism packaging system Technology and Engineering 1544519 2010-02-11T15:16:45+01:00 2010-02-11T15:20:32+01:00 2010-02-11T15:20:32+01:00

oai:lup-student-papers.lub.lu.se:1544523 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Martin Persson author Johan Dahlström author Ola Carlqvist supervisor Innovation v1000241 department This report is a result of a Master thesis that was carried out at Dresser Wayne AB and at<br /> the Division of Machine Design at the Department of Design Sciences LTH.<br /> The thesis was written as a product development report and essentially follows the<br /> method described by Ulrich and Eppinger found in the publication Product Design and<br /> Development.<br /> The objective of the Master Thesis was to design and build a prototype of a new hose<br /> retractor for Dresser Wayne’s new generation of dispensers. One retractor is supposed to<br /> retract all hoses on one side of the dispenser.<br /> The new retractor concept was based on a pulley system. Tests showed that the way to<br /> power the retractor was with a rubber band. The testes were preformed in an experiment<br /> dispenser on Dresser Wayne.<br /> The pulley concept is a simple and uncomplicated solution to the problem that could<br /> compete with Dresser Wayne’s existing retractors. The concept needs further test and<br /> development before it can be used in a commercial fuel dispensers. https://lup.lub.lu.se/student-papers/record/1544523/file/1544524.pdf application/pdf 3530320 yes 2009 swe Product development fuel dispenser hose retractor Technology and Engineering 1544523 2010-02-11T15:22:22+01:00 2010-02-11T15:25:15+01:00 2010-02-11T15:25:15+01:00

oai:lup-student-papers.lub.lu.se:1544527 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Patrik Werius author Ola Carlqvist supervisor Innovation v1000241 department This master’s thesis has been written by Patrik Werius at the Department of Machine Design at the Faculty of Engineering, LTH, at Lund University. It has been part of a research project which is dealing with the development of a construction system. This construction system is a new concept for assembling the cabin of a Volvo truck. The focus of this master’s thesis is on the connection between the automation robot and the metallic plate sides of the cabin, the so called fixture, and the initial goal of the master’s thesis was to produce a weight optimized prototype of this fixture. The reasons for changing the goal was partly because the want of adequate back ground information but mostly due to the lack of a generic analysis model for carbon fibre reinforced plastic. The goal was changed too delivering such an analysis model and to perform a pilot study for modelling of carbon fibre structures.<br /> To be able to accommodate the criteria of maximum allowable deformation of the fixture when lifting a cabin side a carbon fibre reinforced plastic is used. This has very high strength to weight ratio but it is also complicated to analyze with computer based construction analysis. For this an analysis model has been generated and described within this master’s thesis. It was also compared to tensile tests of test rods of fibre reinforced plastics. Data from the analysis model and the tensile tests were compared and found to be correspondent. A well-founded substitution to aluminium enabled the development process to go forth parallel to the generation of the analysis model for the fibre reinforced plastic. The results from the development process were compared with an already existing product. This product was assumed to fulfil the criteria of maximum deformation and when analyzed with aluminium as material appropriate data for comparison was established. A suggestion of an alternative shape of the fixture compared to the already existing product was delivered with a weight reduction of 7.3 %.<br /> Analysis on the alternative shape with fibre reinforced plastic was not performed. Therefore there was not established an estimation of how much the weight could be reduced due to optimization of the fibre alignment. To get an idea of how significant the optimization of the fibre alignment is to weight optimization a simple test was performed. This test compared the linear strain of different test rods subjected to the same tensile strength test. The difference between the rods was the fibre alignment. The result pointed to that an optimization of the fibre alignment can lead to a reduction of the linear strain with approximately 50 %. The aim of this master’s thesis was changed into becoming a pilot study for development of weight optimized prototypes and delivering an analysis model for fibre reinforced plastics. The recommendation for future studies is to concentrate on the optimization of fibre alignment. https://lup.lub.lu.se/student-papers/record/1544527/file/1544528.pdf application/pdf 3986273 yes 2008 swe Product development bending resistance weight optimization ANSYS carbon fibre reinforced plastic Technology and Engineering 1544527 2010-02-11T15:25:32+01:00 2010-02-11T15:29:10+01:00 2010-02-11T15:29:10+01:00

oai:lup-student-papers.lub.lu.se:1544530 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tina Johansson author Hanna Helgesson author Per Liljeqvist supervisor Innovation v1000241 department This master thesis was performed at Lund Institute of Technology and Dresser Wayne Pignone, Malmö. It aims to achieve two new design concepts for fuel dispensers, which is Dresser Wayne’s main business area.<br /> The dispenser, Global Star, which was to be redesigned is a C-style model and should remain so, i.e. have the hoses located on one side of the hydraulic cabinet. This cabinet fits the hydraulic pumps, sucking fuel from the underground cisterns.<br /> The method used for this thesis was design methodology, where a design brief is first established. The brief investigates what demands should be handled. Observations, interviews, benchmarking and literature studies resulted in demands on the products, which were summarized in a function analysis.<br /> With the demands set, ideas were to be generated. The new design should be modern, attractive and have better quality than the old one. Experiments with curves of different types were done, to get a softer, less square expression. Sketches, cardboard mock-ups, clay mock-ups and computer sketches eventually led to the final result.<br /> In the concept with only detail changes, step one, curves on the surface were used to change the impression using small means. The side of the hydraulic cabinet and the electronic head was also bent to round the design. New buttons were developed and placed at a new location. They improve the usability of the dispenser by guiding the user with light around the buttons that constitute the choice.<br /> Both concepts are, unlike the old Global Star, only available in one height to increase the volume of this model and minimize production cost. They also have the nozzle boots lowered. Hereby it is easier for short persons to reach the handles and it is also closer in height to the filler cap on most cars. The dispensers also have more area for customization by having the metal sheet over the hydraulic cabinet extending over the hose cassette too.<br /> The step two concept is larger and inspires more respect than step one. Most of the surfaces are convex. It has a thinner display providing a modern, hi-tech expression. The sloping payment terminal is located by the hydraulic cabinet. This gives a better view and more accessibility for people of different height, even those in wheelchairs. The sloping payment terminal is matched by the sloping roof on the hose cassette. The roof also provides a spot for identification, for example a number. https://lup.lub.lu.se/student-papers/record/1544530/file/1544531.pdf application/pdf 1741266 yes 2007 eng Fuel dispenser redesign Global Star Dresser Wayne Technology and Engineering 1544530 2010-02-11T15:43:00+01:00 2010-02-23T09:45:52+01:00 2010-02-23T09:45:52+01:00

oai:lup-student-papers.lub.lu.se:1544621 2025-07-29T13:03:30Z HumanitiesTheology Technology

studentPublicationsH2 Emma Lööf author Guest lecturer Charlotte Sjödell supervisor Professor Claus-Christian Eckhardt supervisor Industrial Design v1000239 department To travel with public transport and at the same time have<br /> a pleasant and relaxed journey is not a guarantee. Stress,<br /> insecurity and confusion can strike everyone, with or without<br /> disabilities. A political goal says that Sweden should<br /> have an accessible society in 2010. Some tools that can<br /> be used to reach this goal are design and architecture,<br /> but there is not much time left. In my role as a designer I<br /> choose to include and focus on people who may have<br /> problem with information and navigation.<br /> Three defi nitions created the framework for the project.<br /> Cognition; the thinking process where information and<br /> knowledge is received, worked through and supplied.<br /> Democratic design; accept that people are different and<br /> does not exclude possible users.<br /> Public transport; a possibility for people to travel in an organized<br /> way in a common vehicle.<br /> The result of this project is a service that offers information<br /> that is essential to fulfi l a journey from A-Z. Except from the<br /> concept itself I suggest this report to be seen as guidance<br /> for projects that includes public transport and the aim of diversity. https://lup.lub.lu.se/student-papers/record/1544621/file/1544622.pdf application/pdf 3710501 no 2010 eng Technology and Engineering Arts and Architecture ISRN ISRN: LUT-DVIDE/EX--09/50118--SE 1544621 2010-02-12T08:14:30+01:00 2012-11-05T14:19:15+01:00 2010-02-12T08:21:25+01:00

oai:lup-student-papers.lub.lu.se:1545127 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Daniel Grahn author Henrik Persson author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1545127/file/8956187.pdf application/pdf 1187801 no 2007 swe usability användbarhet Technology and Engineering ISRN:LUTMDNTMAT-5105-SE 1545127 2010-02-15T10:36:25+01:00 2018-08-16T12:26:57+02:00 2010-07-15T15:11:15+02:00

oai:lup-student-papers.lub.lu.se:1545134 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Paulina Rosenqvist author Isabelle Magnusson author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1545134/file/8956183.pdf application/pdf 3296614 no 2007 swe usability användbarhet Technology and Engineering http://www1.design.lth.se/usabilitylab/theses/LUTMDNTMAT-5103-SE.pdf ISRN: LUTMDNTMAT-5103-SE 1545134 2010-02-15T10:44:34+01:00 2018-08-16T12:25:04+02:00 2010-07-15T15:11:06+02:00

oai:lup-student-papers.lub.lu.se:1545251 2025-07-29T13:03:30Z Technology

studentPublicationsH2 John Lunde Flennmark author John Ström author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1545251/file/8956205.pdf application/pdf 3421234 no 2007 eng usability användbarhet Technology and Engineering ISRN: LUTMDNTMAT-5100-SE 1545251 2010-02-15T14:56:18+01:00 2018-08-16T12:37:31+02:00 2010-07-15T15:10:56+02:00

oai:lup-student-papers.lub.lu.se:1545256 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Erik Hörberg author Tomasz Solak author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1545256/file/8956195.pdf application/pdf 1584335 no 2007 eng usability användbarhet Technology and Engineering ISRN: LUTMDNTMAT-5098-SE 1545256 2010-02-15T15:00:10+01:00 2018-08-16T12:32:39+02:00 2010-07-15T15:10:40+02:00

oai:lup-student-papers.lub.lu.se:1545275 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Nils Assarsson author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1545275/file/8956198.pdf application/pdf 6785355 no 2006 eng användbarhet usability Technology and Engineering http://www1.design.lth.se/usabilitylab/theses/LUTMDNTMAT-5097-SE.pdf ISRN: LUTMDNTMAT-5097-SE 1545275 2010-02-15T15:03:46+01:00 2018-08-16T12:34:01+02:00 2010-07-15T15:10:29+02:00

oai:lup-student-papers.lub.lu.se:1545284 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Marion Nantois author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1545284/file/8956190.pdf application/pdf 1953777 no 2006 eng usability användbarhet Technology and Engineering http://www1.design.lth.se/usabilitylab/theses/LUTMDNTMAT-5096-SE.pdf ISRN: LUTMDNTMAT-5096-SE 1545284 2010-02-15T15:15:16+01:00 2018-08-16T12:28:32+02:00 2010-07-15T15:10:10+02:00

oai:lup-student-papers.lub.lu.se:1545289 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Elise Roudier author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1545289/file/8956193.pdf application/pdf 746939 no 2006 eng användbarhet usability Technology and Engineering ISRN: LUTMDNTMAT-5095-SE 1545289 2010-02-15T15:42:29+01:00 2018-08-16T12:29:58+02:00 2010-02-15T16:00:02+01:00

oai:lup-student-papers.lub.lu.se:1546003 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH2 Jenny Martinsson author 1545960 Gerhard Barmen supervisor Guillaume Favreau supervisor Division of Water Resources Engineering v1000225 department The river Komadugu Yobe in the Lake Chad basin is a seasonal river, about 370 km long and with an average highest flow of 34 m3/s during the time period of 1957 to 1976. The river is dynamic with plenty of meanders and oxbow lakes along its sides. Komadugu Yobe’s thalweg (the line defining the lowest points in a riverbed) is the natural border between Niger and Nigeria and may change position with the river. The objective of this study is to explore if and how the course of the Komadugu Yobe has changed during the 20th century and the impact this has on local inhabitants. Another objective is to look at similar examples in the world where the problem with a pending border exists and how this problem is dealt with. The study only concerns that part of the river constituting the border. Maps and images on different scales and resolutions from the 20th century were compared in a GIS-program to identify possible changes. Subsequently, field observations were conducted in villages along the river together with officials representing local Niger government to permit verification of the observed changes and as a mean to understand the impacts. The results show various changes along the river: a meander that has been cut off, change in the course and erosion. It is confirmed that the river has changed its course at numerous times during the 20th century and continues to do so. The most palpable influence of this change, as concerns local populations, is erosion of the riverbanks, which destroys and threatens houses and fields. https://lup.lub.lu.se/student-papers/record/1546003/file/1546009.pdf application/pdf 3008648 no 2010 eng thalweg Lake Chad basin international boundary GIS semi-arid region Komadugu Yobe rivers meander Technology and Engineering Earth and Environmental Sciences 1101-9824 10/5005 Co-supervisor: Yahaya Nazoumou Examiner: Rolf Larsson 1546003 2010-02-18T22:49:20+01:00 2019-03-28T14:12:24+01:00 2010-02-19T08:08:00+01:00

oai:lup-student-papers.lub.lu.se:1546231 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Stridh author 1546228 Mikael Lindström author Per-Erik Andersson supervisor Innovation v1000241 department In this project, the several steps in a product development process can be followed, from the first brainstorming of basic concepts to the final implementation of the manufactured product in the factory.<br /> <br /> The project was assigned by Faiveley Transport Nordic AB and its aim was to design a well functioning test rig for testing of their train brake units. The new rig’s advantages compared to old existing test rigs at Faiveley, is that it should be compact, flexible and able to test multiple train brake units at the same time.<br /> <br /> Throughout the project the methodology of Ullrich and Eppinger’s “Product Design and Development” was used at a large extent. As a first step in this methodology, target specifications were set and thereafter the concept generation could start. The designing of the test rig was divided into sub problems to be solved separately and after several iterations a final design was found. To make sure the test rig was dimensioned in a satisfying way comprehensive calculations were carried out, e.g. ANSYS calculations.<br /> <br /> After the supervisors at Faiveley approved the design it was manufactured by the company Ingenjörsfirma Jeppsson AB. When the test rig was delivered careful testing took place. The results were very positive, all components functioned as wished and the test rig responded well when applied to forces.<br /> <br /> As Faiveley wanted a new pneumatic system to drive the train brakes, this was ordered by Festo. It consisted of one control unit and ten valve units in a terminal making the device very compact. A casing was designed and manufactured to protect the sensitive equipment.<br /> <br /> Finally the target specifications were compared to those of the actual test rig. All specifications were found satisfactory and the project was considered successful. https://lup.lub.lu.se/student-papers/record/1546231/file/1546232.pdf application/pdf 3038731 2016-01-01 no 2010 eng Test rig Product design and development Faiveley Transport Nordic AB Pro Engineer Structural analysis Pneumatics Technology and Engineering ISRN 10/5379 SE 1546231 2010-02-20T13:01:13+01:00 2016-01-01T04:06:31+01:00 2010-02-23T10:00:06+01:00

oai:lup-student-papers.lub.lu.se:1548065 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jörgen Jönsson author Kjell Nilsson author Robert Bjärnemo supervisor Innovation v1000241 department 1991 swe Technology and Engineering 1548065 2010-02-22T13:22:29+01:00 2010-02-22T14:20:51+01:00 2010-02-22T14:20:51+01:00

oai:lup-student-papers.lub.lu.se:1548069 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Boström author Thomas Gunnarsson author Robert Bjärnemo supervisor Innovation v1000241 department 1992 eng Technology and Engineering 1548069 2010-02-22T13:22:29+01:00 2010-02-22T14:20:44+01:00 2010-02-22T14:20:44+01:00

oai:lup-student-papers.lub.lu.se:1548073 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Frilund author Staffan Pettersson author n/a n/a supervisor Innovation v1000241 department 1988 eng Technology and Engineering 1548073 2010-02-22T13:22:29+01:00 2010-02-22T14:02:35+01:00 2010-02-22T14:02:35+01:00

oai:lup-student-papers.lub.lu.se:1548077 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kjell Johansson author Gunnel Svensson author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548077 2010-02-22T13:22:29+01:00 2010-02-22T14:20:35+01:00 2010-02-22T14:20:35+01:00

oai:lup-student-papers.lub.lu.se:1548081 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Christer Andersson author Robert Bjärnemo supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548081 2010-02-22T13:22:29+01:00 2010-02-22T14:20:26+01:00 2010-02-22T14:20:26+01:00

oai:lup-student-papers.lub.lu.se:1548084 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Roger Svensson author Åke Burman supervisor Innovation v1000241 department 1994 swe Technology and Engineering 1548084 2010-02-22T13:22:29+01:00 2010-02-22T14:20:13+01:00 2010-02-22T14:20:13+01:00

oai:lup-student-papers.lub.lu.se:1548087 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Bjørnstad author Göran Nybom author Robert Bjärnemo supervisor Innovation v1000241 department 1983 swe Technology and Engineering 1548087 2010-02-22T13:22:29+01:00 2010-02-22T14:19:35+01:00 2010-02-22T14:19:35+01:00

oai:lup-student-papers.lub.lu.se:1548091 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Alexandros Papadopoulos author n/a n/a supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548091 2010-02-22T13:22:29+01:00 2010-02-22T14:19:56+01:00 2010-02-22T14:19:56+01:00

oai:lup-student-papers.lub.lu.se:1548094 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Rundberg author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548094 2010-02-22T13:22:29+01:00 2010-02-22T14:19:26+01:00 2010-02-22T14:19:26+01:00

oai:lup-student-papers.lub.lu.se:1548097 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anna Lönnqvist author n/a n/a supervisor Innovation v1000241 department 1983 swe Technology and Engineering 1548097 2010-02-22T13:22:29+01:00 2010-02-22T14:19:11+01:00 2010-02-22T14:19:11+01:00

oai:lup-student-papers.lub.lu.se:1548100 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Erik Keutel author Lars Lundahl author n/a n/a supervisor Innovation v1000241 department 1989 swe Technology and Engineering 1548100 2010-02-22T13:22:29+01:00 2010-02-22T14:17:24+01:00 2010-02-22T14:17:24+01:00

oai:lup-student-papers.lub.lu.se:1548104 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ingvar Lindholm author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548104 2010-02-22T13:22:29+01:00 2010-02-22T14:17:13+01:00 2010-02-22T14:17:13+01:00

oai:lup-student-papers.lub.lu.se:1548107 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gerardo Alfaro author Robert Bjärnemo supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548107 2010-02-22T13:22:29+01:00 2010-02-22T14:17:02+01:00 2010-02-22T14:17:02+01:00

oai:lup-student-papers.lub.lu.se:1548110 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Michael Nilsson author Robert Bjärnemo supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548110 2010-02-22T13:22:29+01:00 2010-02-22T14:16:51+01:00 2010-02-22T14:16:51+01:00

oai:lup-student-papers.lub.lu.se:1548113 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Adolfsson author Sten Olsson author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548113 2010-02-22T13:22:30+01:00 2010-02-22T14:28:54+01:00 2010-02-22T14:28:54+01:00

oai:lup-student-papers.lub.lu.se:1548117 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Rickard Norenstam author n/a n/a supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548117 2010-02-22T13:22:30+01:00 2010-02-22T14:28:45+01:00 2010-02-22T14:28:45+01:00

oai:lup-student-papers.lub.lu.se:1548120 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars G Eriksson author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548120 2010-02-22T13:22:30+01:00 2010-02-22T14:28:36+01:00 2010-02-22T14:28:36+01:00

oai:lup-student-papers.lub.lu.se:1548123 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Beijbom author n/a n/a supervisor Innovation v1000241 department 1977 swe Technology and Engineering 1548123 2010-02-22T13:22:30+01:00 2010-02-22T14:28:27+01:00 2010-02-22T14:28:27+01:00

oai:lup-student-papers.lub.lu.se:1548126 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bertil Collin author n/a n/a supervisor Innovation v1000241 department 1980 swe Technology and Engineering 1548126 2010-02-22T13:22:30+01:00 2010-02-22T14:28:14+01:00 2010-02-22T14:28:14+01:00

oai:lup-student-papers.lub.lu.se:1548129 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bengt Larsson author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548129 2010-02-22T13:22:30+01:00 2010-02-22T14:28:06+01:00 2010-02-22T14:28:06+01:00

oai:lup-student-papers.lub.lu.se:1548132 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Claes Larsson author Gunnar Åstrand author Robert Bjärnemo supervisor Innovation v1000241 department 1990 eng Technology and Engineering 1548132 2010-02-22T13:22:30+01:00 2010-02-22T14:27:57+01:00 2010-02-22T14:27:57+01:00

oai:lup-student-papers.lub.lu.se:1548136 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mikael Hellborg author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548136 2010-02-22T13:22:30+01:00 2010-02-22T14:27:48+01:00 2010-02-22T14:27:48+01:00

oai:lup-student-papers.lub.lu.se:1548139 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dan Glimme author Hans Granbom author n/a n/a supervisor Innovation v1000241 department 1976 swe Technology and Engineering 1548139 2010-02-22T13:22:30+01:00 2010-02-22T14:27:22+01:00 2010-02-22T14:27:22+01:00

oai:lup-student-papers.lub.lu.se:1548143 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Roger Carlsson author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548143 2010-02-22T13:22:30+01:00 2010-02-22T14:27:13+01:00 2010-02-22T14:27:13+01:00

oai:lup-student-papers.lub.lu.se:1548146 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Miroslaw Dolejsi author Örjan Strand author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548146 2010-02-22T13:22:30+01:00 2010-02-22T14:27:04+01:00 2010-02-22T14:27:04+01:00

oai:lup-student-papers.lub.lu.se:1548150 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jörgen Niske author Jonas Schenström author n/a n/a supervisor Innovation v1000241 department 1976 swe Technology and Engineering 1548150 2010-02-22T13:22:30+01:00 2010-02-22T14:26:56+01:00 2010-02-22T14:26:56+01:00

oai:lup-student-papers.lub.lu.se:1548154 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Claes Ericsson author Niklas Gustavsson author n/a n/a supervisor Innovation v1000241 department 1992 swe Technology and Engineering 1548154 2010-02-22T13:22:30+01:00 2010-02-22T14:26:46+01:00 2010-02-22T14:26:46+01:00

oai:lup-student-papers.lub.lu.se:1548158 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars-Erik Eriksson author Hans-Åke Nordgren author n/a n/a supervisor Innovation v1000241 department 1970 swe Technology and Engineering 1548158 2010-02-22T13:22:30+01:00 2010-02-22T14:26:38+01:00 2010-02-22T14:26:38+01:00

oai:lup-student-papers.lub.lu.se:1548162 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Brogren author Peter Christensson author n/a n/a supervisor Innovation v1000241 department 1972 swe Technology and Engineering 1548162 2010-02-22T13:22:30+01:00 2010-02-22T14:26:30+01:00 2010-02-22T14:26:30+01:00

oai:lup-student-papers.lub.lu.se:1548166 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Bruzaeus author Jan Andersson author n/a n/a supervisor Innovation v1000241 department 1973 swe Technology and Engineering 1548166 2010-02-22T13:22:30+01:00 2010-02-22T14:26:12+01:00 2010-02-22T14:26:12+01:00

oai:lup-student-papers.lub.lu.se:1548170 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Marcus Nilsson author n/a n/a supervisor Innovation v1000241 department 1992 eng Technology and Engineering 1548170 2010-02-22T13:22:30+01:00 2010-02-22T14:26:03+01:00 2010-02-22T14:26:03+01:00

oai:lup-student-papers.lub.lu.se:1548173 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henry Ottosson author n/a n/a supervisor Innovation v1000241 department 1973 swe Technology and Engineering 1548173 2010-02-22T13:22:30+01:00 2010-02-22T14:25:56+01:00 2010-02-22T14:25:56+01:00

oai:lup-student-papers.lub.lu.se:1548176 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kelly DuBois author Carina Nylander author n/a n/a supervisor Innovation v1000241 department 1991 eng Technology and Engineering 1548176 2010-02-22T13:22:30+01:00 2010-02-22T14:25:47+01:00 2010-02-22T14:25:47+01:00

oai:lup-student-papers.lub.lu.se:1548180 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Hans Almér author n/a n/a supervisor Innovation v1000241 department 1972 swe Technology and Engineering 1548180 2010-02-22T13:22:30+01:00 2010-02-22T14:25:34+01:00 2010-02-22T14:25:34+01:00

oai:lup-student-papers.lub.lu.se:1548183 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bo Westman author Vibjörn Widnersson author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548183 2010-02-22T13:22:30+01:00 2010-02-22T14:25:25+01:00 2010-02-22T14:25:25+01:00

oai:lup-student-papers.lub.lu.se:1548187 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Birger Cederholm author Erik Dahl author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548187 2010-02-22T13:22:30+01:00 2010-02-23T09:54:33+01:00 2010-02-23T09:54:33+01:00

oai:lup-student-papers.lub.lu.se:1548191 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Larsson author n/a n/a supervisor Innovation v1000241 department 1989 swe Technology and Engineering 1548191 2010-02-22T13:22:30+01:00 2010-02-22T14:22:48+01:00 2010-02-22T14:22:48+01:00

oai:lup-student-papers.lub.lu.se:1548194 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Andersson author Åke Burman supervisor Innovation v1000241 department 1994 swe Technology and Engineering 1548194 2010-02-22T13:22:30+01:00 2010-02-22T14:22:40+01:00 2010-02-22T14:22:40+01:00

oai:lup-student-papers.lub.lu.se:1548197 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Göran Gudmundsson author Mats Pranter author n/a n/a supervisor Innovation v1000241 department 1992 swe Technology and Engineering 1548197 2010-02-22T13:22:30+01:00 2010-02-22T14:22:31+01:00 2010-02-22T14:22:31+01:00

oai:lup-student-papers.lub.lu.se:1548201 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ola Nordström author Robert Bjärnemo supervisor Innovation v1000241 department 1989 swe Technology and Engineering 1548201 2010-02-22T13:22:30+01:00 2010-02-22T14:22:23+01:00 2010-02-22T14:22:23+01:00

oai:lup-student-papers.lub.lu.se:1548204 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jörgen Knutsson author n/a n/a supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548204 2010-02-22T13:22:30+01:00 2010-02-22T14:22:14+01:00 2010-02-22T14:22:14+01:00

oai:lup-student-papers.lub.lu.se:1548207 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sven Andersson author Lennart Jonasson author n/a n/a supervisor Innovation v1000241 department 1975 swe Technology and Engineering 1548207 2010-02-22T13:22:30+01:00 2010-02-22T14:22:05+01:00 2010-02-22T14:22:05+01:00

oai:lup-student-papers.lub.lu.se:1548211 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Ising author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548211 2010-02-22T13:22:30+01:00 2010-02-22T14:21:57+01:00 2010-02-22T14:21:57+01:00

oai:lup-student-papers.lub.lu.se:1548214 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Carsten Allhorn author n/a n/a supervisor Innovation v1000241 department 1976 swe Technology and Engineering 1548214 2010-02-22T13:22:30+01:00 2010-02-23T09:54:24+01:00 2010-02-23T09:54:24+01:00

oai:lup-student-papers.lub.lu.se:1548217 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kjell Jönsson author n/a n/a supervisor Innovation v1000241 department 1977 swe Technology and Engineering 1548217 2010-02-22T13:22:30+01:00 2010-02-22T14:20:59+01:00 2010-02-22T14:20:59+01:00

oai:lup-student-papers.lub.lu.se:1548220 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Larsson author Niklas Wachtmeister author n/a n/a supervisor Innovation v1000241 department 1980 swe Technology and Engineering 1548220 2010-02-22T13:22:31+01:00 2010-02-22T15:10:28+01:00 2010-02-22T15:10:28+01:00

oai:lup-student-papers.lub.lu.se:1548224 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lennart Disborg author n/a n/a supervisor Innovation v1000241 department 1972 swe Technology and Engineering 1548224 2010-02-22T13:22:31+01:00 2010-02-22T15:10:20+01:00 2010-02-22T15:10:20+01:00

oai:lup-student-papers.lub.lu.se:1548227 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jiri Lhota author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548227 2010-02-22T13:22:31+01:00 2010-02-22T15:10:07+01:00 2010-02-22T15:10:07+01:00

oai:lup-student-papers.lub.lu.se:1548230 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Börje Wemmert author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548230 2010-02-22T13:22:31+01:00 2010-02-22T15:10:00+01:00 2010-02-22T15:10:00+01:00

oai:lup-student-papers.lub.lu.se:1548233 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per-Åke Ohlsson author n/a n/a supervisor Innovation v1000241 department 1992 swe Technology and Engineering 1548233 2010-02-22T13:22:31+01:00 2010-02-22T15:09:44+01:00 2010-02-22T15:09:44+01:00

oai:lup-student-papers.lub.lu.se:1548236 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Hegardt author Karl-Olof Karlsson author n/a n/a supervisor Innovation v1000241 department 1990 swe Technology and Engineering 1548236 2010-02-22T13:22:31+01:00 2010-02-22T15:08:45+01:00 2010-02-22T15:08:45+01:00

oai:lup-student-papers.lub.lu.se:1548240 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Hans Bengtsson author Erland Leide author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548240 2010-02-22T13:22:31+01:00 2010-02-22T15:08:37+01:00 2010-02-22T15:08:37+01:00

oai:lup-student-papers.lub.lu.se:1548244 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Hans Peter Karlelid author n/a n/a supervisor Innovation v1000241 department 1988 swe Technology and Engineering 1548244 2010-02-22T13:22:31+01:00 2010-02-22T15:08:30+01:00 2010-02-22T15:08:30+01:00

oai:lup-student-papers.lub.lu.se:1548247 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Björn Larsson author Ulf Lorentzon author n/a n/a supervisor Innovation v1000241 department 1992 eng Technology and Engineering 1548247 2010-02-22T13:22:31+01:00 2010-02-22T14:16:40+01:00 2010-02-22T14:16:40+01:00

oai:lup-student-papers.lub.lu.se:1548251 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kenth Ringdahl author Peter Sandberg author n/a n/a supervisor Innovation v1000241 department 1970 swe Technology and Engineering 1548251 2010-02-22T13:22:31+01:00 2010-02-22T15:08:21+01:00 2010-02-22T15:08:21+01:00

oai:lup-student-papers.lub.lu.se:1548255 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Forsman author Anders Wallin author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548255 2010-02-22T13:22:31+01:00 2010-02-22T15:08:10+01:00 2010-02-22T15:08:10+01:00

oai:lup-student-papers.lub.lu.se:1548259 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bo Hellberg author Lars-Olof Lindblad author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548259 2010-02-22T13:22:31+01:00 2010-02-22T15:08:02+01:00 2010-02-22T15:08:02+01:00

oai:lup-student-papers.lub.lu.se:1548263 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lennart Johansson author n/a n/a supervisor Innovation v1000241 department 1972 swe Technology and Engineering 1548263 2010-02-22T13:22:31+01:00 2010-02-22T15:07:52+01:00 2010-02-22T15:07:52+01:00

oai:lup-student-papers.lub.lu.se:1548266 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Morten Höjlund author n/a n/a supervisor Innovation v1000241 department 1973 swe Technology and Engineering 1548266 2010-02-22T13:22:31+01:00 2010-02-22T15:07:14+01:00 2010-02-22T15:07:14+01:00

oai:lup-student-papers.lub.lu.se:1548269 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Svanberg author Robert Bjärnemo supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548269 2010-02-22T13:22:31+01:00 2010-02-22T15:07:01+01:00 2010-02-22T15:07:01+01:00

oai:lup-student-papers.lub.lu.se:1548272 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Haag author n/a n/a supervisor Innovation v1000241 department 1988 swe Technology and Engineering 1548272 2010-02-22T13:22:31+01:00 2010-02-22T15:06:54+01:00 2010-02-22T15:06:54+01:00

oai:lup-student-papers.lub.lu.se:1548275 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jens Mogard author Jan Sterner author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548275 2010-02-22T13:22:31+01:00 2010-02-22T15:06:46+01:00 2010-02-22T15:06:46+01:00

oai:lup-student-papers.lub.lu.se:1548279 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jean Bülow author Johan von Porat author n/a n/a supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548279 2010-02-22T13:22:31+01:00 2010-02-22T15:06:38+01:00 2010-02-22T15:06:38+01:00

oai:lup-student-papers.lub.lu.se:1548283 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kaj Persson author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548283 2010-02-22T13:22:31+01:00 2010-02-22T15:06:30+01:00 2010-02-22T15:06:30+01:00

oai:lup-student-papers.lub.lu.se:1548286 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Montelin author Robert Bjärnemo supervisor Innovation v1000241 department 1991 swe Technology and Engineering 1548286 2010-02-22T13:22:31+01:00 2010-02-22T15:06:22+01:00 2010-02-22T15:06:22+01:00

oai:lup-student-papers.lub.lu.se:1548289 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gunnar Belin author n/a n/a supervisor Innovation v1000241 department 1975 swe Technology and Engineering 1548289 2010-02-22T13:22:31+01:00 2010-02-22T15:06:14+01:00 2010-02-22T15:06:14+01:00

oai:lup-student-papers.lub.lu.se:1548292 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Arne Gunnarsson author n/a n/a supervisor Innovation v1000241 department 1968 swe Technology and Engineering 1548292 2010-02-22T13:22:31+01:00 2010-02-22T15:06:06+01:00 2010-02-22T15:06:06+01:00

oai:lup-student-papers.lub.lu.se:1548295 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Möllerström author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548295 2010-02-22T13:22:31+01:00 2010-02-22T15:05:58+01:00 2010-02-22T15:05:58+01:00

oai:lup-student-papers.lub.lu.se:1548298 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ove Bengtsson author n/a n/a supervisor Innovation v1000241 department 1968 swe Technology and Engineering 1548298 2010-02-22T13:22:31+01:00 2010-02-22T15:05:50+01:00 2010-02-22T15:05:50+01:00

oai:lup-student-papers.lub.lu.se:1548301 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Eskil Larsson author Ann Catrin Nilsson author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548301 2010-02-22T13:22:31+01:00 2010-02-22T15:05:38+01:00 2010-02-22T15:05:38+01:00

oai:lup-student-papers.lub.lu.se:1548305 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars-Håkan Nilsson author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548305 2010-02-22T13:22:31+01:00 2010-02-22T15:05:29+01:00 2010-02-22T15:05:29+01:00

oai:lup-student-papers.lub.lu.se:1548308 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Klasén author n/a n/a supervisor Innovation v1000241 department 1975 swe Technology and Engineering 1548308 2010-02-22T13:22:31+01:00 2010-02-22T15:05:21+01:00 2010-02-22T15:05:21+01:00

oai:lup-student-papers.lub.lu.se:1548311 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bengt Hagander author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548311 2010-02-22T13:22:31+01:00 2010-02-22T15:05:12+01:00 2010-02-22T15:05:12+01:00

oai:lup-student-papers.lub.lu.se:1548314 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Nils-Anders Dahlkvist author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548314 2010-02-22T13:22:31+01:00 2010-02-22T15:05:03+01:00 2010-02-22T15:05:03+01:00

oai:lup-student-papers.lub.lu.se:1548317 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jan Lundgren author n/a n/a supervisor Innovation v1000241 department 1980 swe Technology and Engineering 1548317 2010-02-22T13:22:31+01:00 2010-02-22T14:29:28+01:00 2010-02-22T14:29:28+01:00

oai:lup-student-papers.lub.lu.se:1548320 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Pär Olanders author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548320 2010-02-22T13:22:31+01:00 2010-02-22T14:29:20+01:00 2010-02-22T14:29:20+01:00

oai:lup-student-papers.lub.lu.se:1548323 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gustav Sande author n/a n/a supervisor Innovation v1000241 department 1995 swe Technology and Engineering 1548323 2010-02-22T13:22:31+01:00 2010-02-22T14:29:11+01:00 2010-02-22T14:29:11+01:00

oai:lup-student-papers.lub.lu.se:1548326 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Percy Ellmén author Jan Svensson author n/a n/a supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548326 2010-02-22T13:22:31+01:00 2010-02-22T14:29:03+01:00 2010-02-22T14:29:03+01:00

oai:lup-student-papers.lub.lu.se:1548330 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Eric Rosenlund author n/a n/a supervisor Innovation v1000241 department 1975 swe Technology and Engineering 1548330 2010-02-22T13:22:32+01:00 2010-02-23T08:35:48+01:00 2010-02-23T08:35:48+01:00

oai:lup-student-papers.lub.lu.se:1548333 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Hedberg author Robert Bjärnemo supervisor Innovation v1000241 department 1990 swe Technology and Engineering 1548333 2010-02-22T13:22:32+01:00 2010-02-23T08:35:38+01:00 2010-02-23T08:35:38+01:00

oai:lup-student-papers.lub.lu.se:1548336 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Wallenås author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548336 2010-02-22T13:22:32+01:00 2010-02-23T08:35:30+01:00 2010-02-23T08:35:30+01:00

oai:lup-student-papers.lub.lu.se:1548339 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jerry Bengtsson author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548339 2010-02-22T13:22:32+01:00 2010-02-23T08:35:06+01:00 2010-02-23T08:35:06+01:00

oai:lup-student-papers.lub.lu.se:1548342 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kenneth Berglund author Greger Höglund author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548342 2010-02-22T13:22:32+01:00 2010-02-23T08:34:57+01:00 2010-02-23T08:34:57+01:00

oai:lup-student-papers.lub.lu.se:1548346 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per-Åke Karlsson author Paul Pettersson author n/a n/a supervisor Innovation v1000241 department 1973 swe Technology and Engineering 1548346 2010-02-22T13:22:32+01:00 2010-02-22T16:07:46+01:00 2010-02-22T16:07:46+01:00

oai:lup-student-papers.lub.lu.se:1548350 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Herrlander author Hans Kothe author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548350 2010-02-22T13:22:32+01:00 2010-02-22T16:07:34+01:00 2010-02-22T16:07:34+01:00

oai:lup-student-papers.lub.lu.se:1548354 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gösta Sjölin author n/a n/a supervisor Innovation v1000241 department 1968 swe Technology and Engineering 1548354 2010-02-22T13:22:32+01:00 2010-02-22T16:07:20+01:00 2010-02-22T16:07:20+01:00

oai:lup-student-papers.lub.lu.se:1548361 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars-Göran Linderoth author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548361 2010-02-22T13:22:32+01:00 2010-02-22T16:06:21+01:00 2010-02-22T16:06:21+01:00

oai:lup-student-papers.lub.lu.se:1548364 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Dahlgren author Roland Wadenheim author n/a n/a supervisor Innovation v1000241 department 1972 swe Technology and Engineering 1548364 2010-02-22T13:22:32+01:00 2010-02-22T16:06:09+01:00 2010-02-22T16:06:09+01:00

oai:lup-student-papers.lub.lu.se:1548368 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Hansson author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548368 2010-02-22T13:22:32+01:00 2010-02-22T16:05:56+01:00 2010-02-22T16:05:56+01:00

oai:lup-student-papers.lub.lu.se:1548371 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Marian Gorecki author Wojciech Kurkus author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548371 2010-02-22T13:22:32+01:00 2010-02-22T16:05:26+01:00 2010-02-22T16:05:26+01:00

oai:lup-student-papers.lub.lu.se:1548375 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Håkan Nilsson author Hans Welin author Robert Bjärnemo supervisor Innovation v1000241 department 1987 swe Technology and Engineering 1548375 2010-02-22T13:22:32+01:00 2010-02-22T16:05:13+01:00 2010-02-22T16:05:13+01:00

oai:lup-student-papers.lub.lu.se:1548379 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jan Andersson author Arne Borg author n/a n/a supervisor Innovation v1000241 department 1977 swe Technology and Engineering 1548379 2010-02-22T13:22:32+01:00 2010-02-22T16:05:05+01:00 2010-02-22T16:05:05+01:00

oai:lup-student-papers.lub.lu.se:1548383 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Håkan Bjelkengren author Lennart Larsson author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548383 2010-02-22T13:22:32+01:00 2010-02-22T16:04:52+01:00 2010-02-22T16:04:52+01:00

oai:lup-student-papers.lub.lu.se:1548387 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Göran Andersson author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548387 2010-02-22T13:22:32+01:00 2010-02-22T16:04:38+01:00 2010-02-22T16:04:38+01:00

oai:lup-student-papers.lub.lu.se:1548390 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Doriano Ottocan author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548390 2010-02-22T13:22:32+01:00 2010-02-22T16:04:26+01:00 2010-02-22T16:04:26+01:00

oai:lup-student-papers.lub.lu.se:1548393 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bo Nilsson author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548393 2010-02-22T13:22:32+01:00 2010-02-22T15:59:50+01:00 2010-02-22T15:59:50+01:00

oai:lup-student-papers.lub.lu.se:1548396 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Lorup author Olle Strååt author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548396 2010-02-22T13:22:32+01:00 2010-02-22T15:20:21+01:00 2010-02-22T15:20:21+01:00

oai:lup-student-papers.lub.lu.se:1548400 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anna-Karin Rosén author n/a n/a supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548400 2010-02-22T13:22:32+01:00 2010-02-22T15:14:00+01:00 2010-02-22T15:14:00+01:00

oai:lup-student-papers.lub.lu.se:1548408 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bertil Sparr author Robert Bjärnemo supervisor Innovation v1000241 department 1980 swe Technology and Engineering 1548408 2010-02-22T13:22:32+01:00 2010-02-22T15:12:18+01:00 2010-02-22T15:12:18+01:00

oai:lup-student-papers.lub.lu.se:1548411 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lennart Bensefellt author Björn Widell author n/a n/a supervisor Innovation v1000241 department 1977 swe Technology and Engineering 1548411 2010-02-22T13:22:32+01:00 2010-02-22T15:12:02+01:00 2010-02-22T15:12:02+01:00

oai:lup-student-papers.lub.lu.se:1548415 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Björn Davidsson author n/a n/a supervisor Innovation v1000241 department 1995 swe Technology and Engineering 1548415 2010-02-22T13:22:32+01:00 2010-02-22T15:11:52+01:00 2010-02-22T15:11:52+01:00

oai:lup-student-papers.lub.lu.se:1548418 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Björn Karlsson author Johan Tryding author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548418 2010-02-22T13:22:32+01:00 2010-02-22T15:11:43+01:00 2010-02-22T15:11:43+01:00

oai:lup-student-papers.lub.lu.se:1548422 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Olle Benzon author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548422 2010-02-22T13:22:32+01:00 2010-02-22T15:11:12+01:00 2010-02-22T15:11:12+01:00

oai:lup-student-papers.lub.lu.se:1548425 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Håkan Andersson author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548425 2010-02-22T13:22:32+01:00 2010-02-22T15:11:03+01:00 2010-02-22T15:11:03+01:00

oai:lup-student-papers.lub.lu.se:1548428 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Ingesson author Pär Tranvik author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548428 2010-02-22T13:22:32+01:00 2010-02-22T15:10:55+01:00 2010-02-22T15:10:55+01:00

oai:lup-student-papers.lub.lu.se:1548432 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Stefan Blomqvist author Kenneth Svensson author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548432 2010-02-22T13:22:32+01:00 2010-02-22T15:10:47+01:00 2010-02-22T15:10:47+01:00

oai:lup-student-papers.lub.lu.se:1548436 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Stefan Berg author Bert Rundgren author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548436 2010-02-22T13:22:32+01:00 2010-02-22T15:10:36+01:00 2010-02-22T15:10:36+01:00

oai:lup-student-papers.lub.lu.se:1548440 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Frans Skopal author Jan Skopal author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548440 2010-02-22T13:22:33+01:00 2010-02-23T08:39:33+01:00 2010-02-23T08:39:33+01:00

oai:lup-student-papers.lub.lu.se:1548444 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Björn Jonshagen author Claes Trönnberg author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548444 2010-02-22T13:22:33+01:00 2010-02-23T08:39:22+01:00 2010-02-23T08:39:22+01:00

oai:lup-student-papers.lub.lu.se:1548448 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bertil Wolgast author Bengt Holmqvist author n/a n/a supervisor Innovation v1000241 department 1975 swe Technology and Engineering 1548448 2010-02-22T13:22:33+01:00 2010-02-23T08:39:15+01:00 2010-02-23T08:39:15+01:00

oai:lup-student-papers.lub.lu.se:1548452 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ralf Andersson author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548452 2010-02-22T13:22:33+01:00 2010-02-23T08:39:07+01:00 2010-02-23T08:39:07+01:00

oai:lup-student-papers.lub.lu.se:1548455 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Lindgren author Nils Wendestam author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548455 2010-02-22T13:22:33+01:00 2010-02-23T08:39:00+01:00 2010-02-23T08:39:00+01:00

oai:lup-student-papers.lub.lu.se:1548459 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Karlsson author n/a n/a supervisor Innovation v1000241 department 1989 swe Technology and Engineering 1548459 2010-02-22T13:22:33+01:00 2010-02-23T08:38:53+01:00 2010-02-23T08:38:53+01:00

oai:lup-student-papers.lub.lu.se:1548462 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Christian Magnoff author Robert Bjärnemo supervisor Innovation v1000241 department 1988 swe Technology and Engineering 1548462 2010-02-22T13:22:33+01:00 2010-02-23T08:38:46+01:00 2010-02-23T08:38:46+01:00

oai:lup-student-papers.lub.lu.se:1548465 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Hansson author Robert Bjärnemo supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548465 2010-02-22T13:22:33+01:00 2010-02-23T08:38:39+01:00 2010-02-23T08:38:39+01:00

oai:lup-student-papers.lub.lu.se:1548468 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gunnar Johansson author n/a n/a supervisor Innovation v1000241 department 1980 swe Technology and Engineering 1548468 2010-02-22T13:22:33+01:00 2010-02-23T08:38:32+01:00 2010-02-23T08:38:32+01:00

oai:lup-student-papers.lub.lu.se:1548471 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Bentmar author Ingemar Bremling author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548471 2010-02-22T13:22:33+01:00 2010-02-23T08:38:24+01:00 2010-02-23T08:38:24+01:00

oai:lup-student-papers.lub.lu.se:1548475 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Olsson author Per Viktorsson author Robert Bjärnemo supervisor Innovation v1000241 department 1987 swe Technology and Engineering 1548475 2010-02-22T13:22:33+01:00 2010-02-23T08:38:17+01:00 2010-02-23T08:38:17+01:00

oai:lup-student-papers.lub.lu.se:1548479 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ronnie Hammarström author n/a n/a supervisor Innovation v1000241 department 1995 swe Technology and Engineering 1548479 2010-02-22T13:22:33+01:00 2010-02-23T08:38:08+01:00 2010-02-23T08:38:08+01:00

oai:lup-student-papers.lub.lu.se:1548482 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Eriksson author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548482 2010-02-22T13:22:33+01:00 2010-02-23T08:38:01+01:00 2010-02-23T08:38:01+01:00

oai:lup-student-papers.lub.lu.se:1548485 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bert Andersson author n/a n/a supervisor Innovation v1000241 department 1967 swe Technology and Engineering 1548485 2010-02-22T13:22:33+01:00 2010-02-23T08:37:54+01:00 2010-02-23T08:37:54+01:00

oai:lup-student-papers.lub.lu.se:1548488 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Danielsson author Björn Andersson author n/a n/a supervisor Innovation v1000241 department 1975 swe Technology and Engineering 1548488 2010-02-22T13:22:33+01:00 2010-02-23T08:37:47+01:00 2010-02-23T08:37:47+01:00

oai:lup-student-papers.lub.lu.se:1548492 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Carsten Ahlcrona author Ingemar John author n/a n/a supervisor Innovation v1000241 department 1973 swe Technology and Engineering 1548492 2010-02-22T13:22:33+01:00 2010-02-23T08:37:39+01:00 2010-02-23T08:37:39+01:00

oai:lup-student-papers.lub.lu.se:1548496 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Gidner author Lars Jönsson author Robert Bjärnemo supervisor Innovation v1000241 department 1995 swe Technology and Engineering 1548496 2010-02-22T13:22:33+01:00 2010-02-23T08:37:32+01:00 2010-02-23T08:37:32+01:00

oai:lup-student-papers.lub.lu.se:1548500 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Lindqvist author Åke Burman supervisor Innovation v1000241 department 1995 swe Technology and Engineering 1548500 2010-02-22T13:22:33+01:00 2010-02-23T08:37:25+01:00 2010-02-23T08:37:25+01:00

oai:lup-student-papers.lub.lu.se:1548503 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Hagelqvist author Bengt Lindqvist author Robert Bjärnemo supervisor Innovation v1000241 department 1987 eng Technology and Engineering 1548503 2010-02-22T13:22:33+01:00 2010-02-23T08:37:18+01:00 2010-02-23T08:37:18+01:00

oai:lup-student-papers.lub.lu.se:1548507 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lennart Andersson author Lennart Ek author n/a n/a supervisor Innovation v1000241 department 1976 swe Technology and Engineering 1548507 2010-02-22T13:22:33+01:00 2010-02-23T08:37:10+01:00 2010-02-23T08:37:10+01:00

oai:lup-student-papers.lub.lu.se:1548511 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Lidman author n/a n/a supervisor Innovation v1000241 department 1976 swe Technology and Engineering 1548511 2010-02-22T13:22:33+01:00 2010-02-23T08:37:03+01:00 2010-02-23T08:37:03+01:00

oai:lup-student-papers.lub.lu.se:1548514 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Stefan Axelsson author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548514 2010-02-22T13:22:33+01:00 2010-02-23T08:36:56+01:00 2010-02-23T08:36:56+01:00

oai:lup-student-papers.lub.lu.se:1548517 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dragomir Dimitric author Sven-Erik Hansson author n/a n/a supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548517 2010-02-22T13:22:33+01:00 2010-02-23T08:36:47+01:00 2010-02-23T08:36:47+01:00

oai:lup-student-papers.lub.lu.se:1548521 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Göran Dahl author Henrick Olofsson author Robert Bjärnemo supervisor Innovation v1000241 department 1989 swe Technology and Engineering 1548521 2010-02-22T13:22:33+01:00 2010-02-23T08:36:39+01:00 2010-02-23T08:36:39+01:00

oai:lup-student-papers.lub.lu.se:1548525 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kenneth Lennartsson author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548525 2010-02-22T13:22:33+01:00 2010-02-23T08:36:31+01:00 2010-02-23T08:36:31+01:00

oai:lup-student-papers.lub.lu.se:1548528 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Göran Krantz author n/a n/a supervisor Innovation v1000241 department 1988 swe Technology and Engineering 1548528 2010-02-22T13:22:33+01:00 2010-02-23T08:36:20+01:00 2010-02-23T08:36:20+01:00

oai:lup-student-papers.lub.lu.se:1548531 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jozo Valencuk author n/a n/a supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548531 2010-02-22T13:22:33+01:00 2010-02-23T08:36:12+01:00 2010-02-23T08:36:12+01:00

oai:lup-student-papers.lub.lu.se:1548534 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Hellman author Mikael Åsberg author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548534 2010-02-22T13:22:34+01:00 2010-02-23T09:38:14+01:00 2010-02-23T09:38:14+01:00

oai:lup-student-papers.lub.lu.se:1548538 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Richard Ryba author Robert Bjärnemo supervisor Innovation v1000241 department 1983 swe Technology and Engineering 1548538 2010-02-22T13:22:34+01:00 2010-02-23T09:37:59+01:00 2010-02-23T09:37:59+01:00

oai:lup-student-papers.lub.lu.se:1548541 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Markus Andersson author Anders Glemming author Robert Bjärnemo supervisor Innovation v1000241 department 1990 eng Technology and Engineering 1548541 2010-02-22T13:22:34+01:00 2010-02-23T09:37:49+01:00 2010-02-23T09:37:49+01:00

oai:lup-student-papers.lub.lu.se:1548545 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Håkan Olsson author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548545 2010-02-22T13:22:34+01:00 2010-02-23T09:37:41+01:00 2010-02-23T09:37:41+01:00

oai:lup-student-papers.lub.lu.se:1548548 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Dan W Petersen author n/a n/a supervisor Innovation v1000241 department 1970 swe Technology and Engineering 1548548 2010-02-22T13:22:34+01:00 2010-02-23T09:36:55+01:00 2010-02-23T09:36:55+01:00

oai:lup-student-papers.lub.lu.se:1548551 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jonas Lindqvist author Lars Sjöbeck author n/a n/a supervisor Innovation v1000241 department 1992 swe Technology and Engineering 1548551 2010-02-22T13:22:34+01:00 2010-02-23T09:36:47+01:00 2010-02-23T09:36:47+01:00

oai:lup-student-papers.lub.lu.se:1548555 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lars Tinghammar author n/a n/a supervisor Innovation v1000241 department 1977 swe Technology and Engineering 1548555 2010-02-22T13:22:34+01:00 2010-02-23T09:36:39+01:00 2010-02-23T09:36:39+01:00

oai:lup-student-papers.lub.lu.se:1548558 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gerth Andersson author Svante Johnsson author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548558 2010-02-22T13:22:34+01:00 2010-02-23T09:36:22+01:00 2010-02-23T09:36:22+01:00

oai:lup-student-papers.lub.lu.se:1548562 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Andersson author Andreas Grundsell author n/a n/a supervisor Innovation v1000241 department 1994 eng Technology and Engineering 1548562 2010-02-22T13:22:34+01:00 2010-02-23T08:59:00+01:00 2010-02-23T08:59:00+01:00

oai:lup-student-papers.lub.lu.se:1548566 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Allan Erlandsson author Robert Bjärnemo supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548566 2010-02-22T13:22:34+01:00 2010-02-23T08:53:23+01:00 2010-02-23T08:53:23+01:00

oai:lup-student-papers.lub.lu.se:1548569 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Olof Bergström author Björn Carlsson author n/a n/a supervisor Innovation v1000241 department 1972 swe Technology and Engineering 1548569 2010-02-22T13:22:34+01:00 2010-02-23T08:53:16+01:00 2010-02-23T08:53:16+01:00

oai:lup-student-papers.lub.lu.se:1548573 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Arne Trangärd author n/a n/a supervisor Innovation v1000241 department 1983 swe Technology and Engineering 1548573 2010-02-22T13:22:34+01:00 2010-02-23T08:53:08+01:00 2010-02-23T08:53:08+01:00

oai:lup-student-papers.lub.lu.se:1548576 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Martin Elgh author Magnus Kåreby author Robert Bjärnemo supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548576 2010-02-22T13:22:34+01:00 2010-02-23T08:53:01+01:00 2010-02-23T08:53:01+01:00

oai:lup-student-papers.lub.lu.se:1548580 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Inge Gustafsson author n/a n/a supervisor Innovation v1000241 department 1973 swe Technology and Engineering 1548580 2010-02-22T13:22:34+01:00 2010-02-23T08:52:53+01:00 2010-02-23T08:52:53+01:00

oai:lup-student-papers.lub.lu.se:1548583 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Miegel author n/a n/a supervisor Innovation v1000241 department 1988 swe Technology and Engineering 1548583 2010-02-22T13:22:34+01:00 2010-02-23T08:45:46+01:00 2010-02-23T08:45:46+01:00

oai:lup-student-papers.lub.lu.se:1548586 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Martin Boman author Mårten Karlsson author Robert Bjärnemo supervisor Innovation v1000241 department 1990 swe Technology and Engineering 1548586 2010-02-22T13:22:34+01:00 2010-02-23T08:41:09+01:00 2010-02-23T08:41:09+01:00

oai:lup-student-papers.lub.lu.se:1548590 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Werke author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548590 2010-02-22T13:22:34+01:00 2010-02-23T08:41:02+01:00 2010-02-23T08:41:02+01:00

oai:lup-student-papers.lub.lu.se:1548593 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jonny Palmqvist author Stig Strangert author n/a n/a supervisor Innovation v1000241 department 1967 swe Technology and Engineering 1548593 2010-02-22T13:22:34+01:00 2010-02-23T08:40:52+01:00 2010-02-23T08:40:52+01:00

oai:lup-student-papers.lub.lu.se:1548597 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mats Ohlsson author n/a n/a supervisor Innovation v1000241 department 1983 swe Technology and Engineering 1548597 2010-02-22T13:22:34+01:00 2010-02-23T08:40:44+01:00 2010-02-23T08:40:44+01:00

oai:lup-student-papers.lub.lu.se:1548600 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Erik Petersson author Robert Bjärnemo supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548600 2010-02-22T13:22:34+01:00 2010-02-23T08:40:37+01:00 2010-02-23T08:40:37+01:00

oai:lup-student-papers.lub.lu.se:1548603 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lennart Sjöstedt author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548603 2010-02-22T13:22:34+01:00 2010-02-23T08:40:30+01:00 2010-02-23T08:40:30+01:00

oai:lup-student-papers.lub.lu.se:1548606 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Kamran Haghighi author Robert Bjärnemo supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548606 2010-02-22T13:22:34+01:00 2010-02-23T08:40:24+01:00 2010-02-23T08:40:24+01:00

oai:lup-student-papers.lub.lu.se:1548609 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Roger Carlsson author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548609 2010-02-22T13:22:34+01:00 2010-02-23T08:40:17+01:00 2010-02-23T08:40:17+01:00

oai:lup-student-papers.lub.lu.se:1548612 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Hans Richmond author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548612 2010-02-22T13:22:34+01:00 2010-02-23T08:40:10+01:00 2010-02-23T08:40:10+01:00

oai:lup-student-papers.lub.lu.se:1548615 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mikael Öwall author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548615 2010-02-22T13:22:34+01:00 2010-02-23T08:40:03+01:00 2010-02-23T08:40:03+01:00

oai:lup-student-papers.lub.lu.se:1548618 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Johan Borg author Johan Uppgren author Giorgios Nikoleris supervisor Innovation v1000241 department 2006 swe Technology and Engineering 1548618 2010-02-22T13:22:34+01:00 2010-02-23T08:39:55+01:00 2010-02-23T08:39:55+01:00

oai:lup-student-papers.lub.lu.se:1548622 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Jeppsson author Jerry Karlsson author Niklas Morawetz author Robert Bjärnemo supervisor Innovation v1000241 department 1994 swe Technology and Engineering 1548622 2010-02-22T13:22:34+01:00 2010-02-23T08:39:48+01:00 2010-02-23T08:39:48+01:00

oai:lup-student-papers.lub.lu.se:1548627 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Christian Ottergren author n/a n/a supervisor Innovation v1000241 department 1969 swe Technology and Engineering 1548627 2010-02-22T13:22:34+01:00 2010-02-23T08:39:41+01:00 2010-02-23T08:39:41+01:00

oai:lup-student-papers.lub.lu.se:1548630 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ola Frick author n/a n/a supervisor Innovation v1000241 department 1980 swe Technology and Engineering 1548630 2010-02-22T13:22:35+01:00 2010-02-23T09:45:29+01:00 2010-02-23T09:45:29+01:00

oai:lup-student-papers.lub.lu.se:1548633 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jan-Erik Ekström author Ingvar Linderberth author n/a n/a supervisor Innovation v1000241 department 1974 swe Technology and Engineering 1548633 2010-02-22T13:22:35+01:00 2010-02-23T09:45:22+01:00 2010-02-23T09:45:22+01:00

oai:lup-student-papers.lub.lu.se:1548637 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Calle Tyrén author n/a n/a supervisor Innovation v1000241 department 1980 swe Technology and Engineering 1548637 2010-02-22T13:22:35+01:00 2010-12-07T14:54:12+01:00 2010-02-23T09:45:15+01:00

oai:lup-student-papers.lub.lu.se:1548640 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Rob Olthoff author n/a n/a supervisor Innovation v1000241 department 1992 swe Technology and Engineering 1548640 2010-02-22T13:22:35+01:00 2010-02-23T09:45:07+01:00 2010-02-23T09:45:07+01:00

oai:lup-student-papers.lub.lu.se:1548643 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Staffan Grebius author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548643 2010-02-22T13:22:35+01:00 2010-02-23T09:45:00+01:00 2010-02-23T09:45:00+01:00

oai:lup-student-papers.lub.lu.se:1548646 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sofia Johansson author n/a n/a supervisor Innovation v1000241 department 1983 swe Technology and Engineering 1548646 2010-02-22T13:22:35+01:00 2010-02-23T09:44:51+01:00 2010-02-23T09:44:51+01:00

oai:lup-student-papers.lub.lu.se:1548649 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Stefan Jönsson author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548649 2010-02-22T13:22:35+01:00 2010-02-22T15:04:23+01:00 2010-02-22T15:04:23+01:00

oai:lup-student-papers.lub.lu.se:1548652 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sven Liljedal author n/a n/a supervisor Innovation v1000241 department 1973 swe Technology and Engineering 1548652 2010-02-22T13:22:35+01:00 2010-02-23T09:44:44+01:00 2010-02-23T09:44:44+01:00

oai:lup-student-papers.lub.lu.se:1548655 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Staffan Ottosson author Mats Sjöberg author n/a n/a supervisor Innovation v1000241 department 1979 swe Technology and Engineering 1548655 2010-02-22T13:22:35+01:00 2010-02-23T09:44:38+01:00 2010-02-23T09:44:38+01:00

oai:lup-student-papers.lub.lu.se:1548659 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sten Påhlsson author n/a n/a supervisor Innovation v1000241 department 1970 swe Technology and Engineering 1548659 2010-02-22T13:22:35+01:00 2010-02-23T09:41:39+01:00 2010-02-23T09:41:39+01:00

oai:lup-student-papers.lub.lu.se:1548662 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sven Svensson author n/a n/a supervisor Innovation v1000241 department 1993 swe Technology and Engineering 1548662 2010-02-22T13:22:35+01:00 2010-02-23T09:41:30+01:00 2010-02-23T09:41:30+01:00

oai:lup-student-papers.lub.lu.se:1548665 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sten-Axel Norén author n/a n/a supervisor Innovation v1000241 department 1975 swe Technology and Engineering 1548665 2010-02-22T13:22:35+01:00 2010-02-23T09:41:22+01:00 2010-02-23T09:41:22+01:00

oai:lup-student-papers.lub.lu.se:1548668 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sven-Erik Samuelsson author n/a n/a supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548668 2010-02-22T13:22:35+01:00 2010-02-23T09:41:16+01:00 2010-02-23T09:41:16+01:00

oai:lup-student-papers.lub.lu.se:1548671 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sven Roos author n/a n/a supervisor Innovation v1000241 department 1969 swe Technology and Engineering 1548671 2010-02-22T13:22:35+01:00 2010-02-23T09:41:09+01:00 2010-02-23T09:41:09+01:00

oai:lup-student-papers.lub.lu.se:1548674 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tord Bjerborn author Josef Tarski author n/a n/a supervisor Innovation v1000241 department 1976 swe Technology and Engineering 1548674 2010-02-22T13:22:35+01:00 2010-02-23T09:41:02+01:00 2010-02-23T09:41:02+01:00

oai:lup-student-papers.lub.lu.se:1548678 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tomas Borggren author Robert Bjärnemo supervisor Innovation v1000241 department 1984 swe Technology and Engineering 1548678 2010-02-22T13:22:35+01:00 2010-02-23T09:40:54+01:00 2010-02-23T09:40:54+01:00

oai:lup-student-papers.lub.lu.se:1548681 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Torbjörn Erlandsson author Christian Widing author n/a n/a supervisor Innovation v1000241 department 1992 eng Technology and Engineering 1548681 2010-02-22T13:22:35+01:00 2010-02-22T15:04:15+01:00 2010-02-22T15:04:15+01:00

oai:lup-student-papers.lub.lu.se:1548685 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Terje Forberg author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548685 2010-02-22T13:22:35+01:00 2010-02-23T09:40:48+01:00 2010-02-23T09:40:48+01:00

oai:lup-student-papers.lub.lu.se:1548688 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Torsten Grönvall author n/a n/a supervisor Innovation v1000241 department 1985 swe Technology and Engineering 1548688 2010-02-22T13:22:35+01:00 2010-02-23T09:40:41+01:00 2010-02-23T09:40:41+01:00

oai:lup-student-papers.lub.lu.se:1548691 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tomas Gustafsson author n/a n/a supervisor Innovation v1000241 department 1986 swe Technology and Engineering 1548691 2010-02-22T13:22:35+01:00 2010-02-23T09:40:30+01:00 2010-02-23T09:40:30+01:00

oai:lup-student-papers.lub.lu.se:1548694 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Thomas Holmer author n/a n/a supervisor Innovation v1000241 department 1987 swe Technology and Engineering 1548694 2010-02-22T13:22:35+01:00 2010-02-23T09:40:18+01:00 2010-02-23T09:40:18+01:00

oai:lup-student-papers.lub.lu.se:1548697 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tommy Johansson author n/a n/a supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548697 2010-02-22T13:22:35+01:00 2010-02-23T09:40:00+01:00 2010-02-23T09:40:00+01:00

oai:lup-student-papers.lub.lu.se:1548700 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tommy Kahlroth author Josef Koranyi author Robert Bjärnemo supervisor Innovation v1000241 department 1983 swe Technology and Engineering 1548700 2010-02-22T13:22:35+01:00 2010-02-23T09:39:49+01:00 2010-02-23T09:39:49+01:00

oai:lup-student-papers.lub.lu.se:1548704 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Torgel Kristensson author Thomas Schierwagen author n/a n/a supervisor Innovation v1000241 department 1981 swe Technology and Engineering 1548704 2010-02-22T13:22:35+01:00 2010-02-23T09:39:34+01:00 2010-02-23T09:39:34+01:00

oai:lup-student-papers.lub.lu.se:1548708 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Thomas Landeborg author Robert Bjärnemo supervisor Innovation v1000241 department 1994 swe Technology and Engineering 1548708 2010-02-22T13:22:35+01:00 2010-02-23T09:39:23+01:00 2010-02-23T09:39:23+01:00

oai:lup-student-papers.lub.lu.se:1548711 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Torbjörn Nilsson author Sven Melin author n/a n/a supervisor Innovation v1000241 department 1992 swe Technology and Engineering 1548711 2010-02-22T13:22:35+01:00 2010-02-22T15:04:33+01:00 2010-02-22T15:04:33+01:00

oai:lup-student-papers.lub.lu.se:1548715 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tommy Torstensson author Magnus Wånge author n/a n/a supervisor Innovation v1000241 department 1971 swe Technology and Engineering 1548715 2010-02-22T13:22:35+01:00 2010-02-23T09:39:08+01:00 2010-02-23T09:39:08+01:00

oai:lup-student-papers.lub.lu.se:1548719 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ulf Boltenberg author n/a n/a supervisor Innovation v1000241 department 1982 swe Technology and Engineering 1548719 2010-02-22T13:22:35+01:00 2010-02-23T09:38:44+01:00 2010-02-23T09:38:44+01:00

oai:lup-student-papers.lub.lu.se:1548722 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ulf Holmqvist author n/a n/a supervisor Innovation v1000241 department 1978 swe Technology and Engineering 1548722 2010-02-22T13:22:35+01:00 2010-02-23T09:38:57+01:00 2010-02-23T09:38:57+01:00

oai:lup-student-papers.lub.lu.se:1548725 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ulf Ringdahl author n/a n/a supervisor Innovation v1000241 department 1974 swe Technology and Engineering 1548725 2010-02-22T13:22:35+01:00 2010-02-23T09:38:37+01:00 2010-02-23T09:38:37+01:00

oai:lup-student-papers.lub.lu.se:1548728 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Ulf Santesson author Robert Bjärnemo supervisor Innovation v1000241 department 1990 swe Technology and Engineering 1548728 2010-02-22T13:22:35+01:00 2010-02-23T09:38:30+01:00 2010-02-23T09:38:30+01:00

oai:lup-student-papers.lub.lu.se:1548731 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Wilhelm Ahlström author n/a n/a supervisor Innovation v1000241 department 1970 swe Technology and Engineering 1548731 2010-02-22T13:22:35+01:00 2010-02-23T09:38:21+01:00 2010-02-23T09:38:21+01:00

oai:lup-student-papers.lub.lu.se:1548734 2025-07-29T13:03:30Z Technology

studentPublicationsH2 W Furmanski author M Waniewitz author n/a n/a supervisor Innovation v1000241 department 1976 swe Technology and Engineering 1548734 2010-02-22T13:22:36+01:00 2010-02-23T09:45:41+01:00 2010-02-23T09:45:41+01:00

oai:lup-student-papers.lub.lu.se:1549716 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Madeleine Jonsson author Johan Revstedt supervisor Department of Energy Sciences v1000205 department A study of a sterilizing flow in a package is done. The study is done with the<br /> commercial code Fluent using Large Eddy Simulation and validated with both<br /> Laser Induced Fluorescence and Particle Image Velociometry.<br /> The velocity field is examined in several ways; with changes in grid size, inlet<br /> conditions and sub-grid scale models. The study showed that the most<br /> important parameter is the size and form of the control volumes. A comparison<br /> with the PIV data shows that the simulations have lower velocity in the lower<br /> part of the package and more turbulent fluctuations in the whole package.<br /> The concentration study is done with two different geometries, a larger with a<br /> 7 percent larger volume than the smaller. The grids of the two geometries<br /> differs in the way that the small package has only hexahedral cell and the large<br /> package also has some tetrahedral cells in the bottom. A comparison to LIF<br /> data shows that the simulations of the small package match really well both in<br /> the top and in the bottom of the package. The simulations of the large package<br /> match well in the top but have a lower concentration level at the bottom. This<br /> could be explained by the tetrahedral cells which generate more numerical<br /> diffusion. A comparison between the large and the small package shows only a<br /> small difference of concentration over time. https://lup.lub.lu.se/student-papers/record/1549716/file/1549907.pdf application/pdf 4932414 no 2009 eng gas transport Large Eddy simulation laser induced fluorescence particle image velociometry Technology and Engineering 0282-1990 ISRN LUTMDN/TMHP--09/5199--SE 1549716 2010-02-23T13:34:22+01:00 2010-02-23T14:12:54+01:00 2010-02-23T14:12:54+01:00

oai:lup-student-papers.lub.lu.se:1549821 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Emil Bjäreborn author Fredrik Åkerman author Klas Jonshagen supervisor Department of Energy Sciences v1000205 department With today’s growing awareness of human caused climate changes there is a big interest to replace fossil fuels with renewable fuel sources, such as biomass fuels. For power production biomass are traditionally combusted in small scale facilities which uses a steam cycle. The electrical efficiencies for such facilities are relatively low. By gasifying the solid biomass to syngas it can be used for running a gas turbine. The gas turbine can then be combined with a steam cycle which could increase the electrical efficiency. The purpose of this master thesis was to investigate the electrical efficiency of biomass integrated gasification combined cycle and compare this to current facilities using the Rankine-cycle. The work was carried out in two steps, the first step was a literature survey and the second step was to model an integrated gasification combined cycle plant. The literature survey covered different gasification technologies, gas turbine operation, gas cleaning, fuel drying etc. Equilibrium modelling of the gasification process was also investigated in the literature survey. From the survey the concept of pressurized indirect gasification was chosen for the second part of the work. The models and simulations are made with the software IPSEpro, which is a simulation environment for energy engineering. The air needed for the combustion chamber in gasifier was supplied from the gas turbine’s compressor. The drained mass flow corresponded well to the increase in the fuel mass flow to the gas turbine. The mass flow through the turbines thereby was kept close to the design case. When fuel drying was integrated this lead to a reduction in the power output but the electrical efficiency increased. The increase is explained by the fact that the efficiency is calculated on the lower heating value of the fuel. The results for the electrical efficiencies were in the region of 45-50% which is higher than for conventional power plants using biofuels. However an integration of a gasification unit will create a very advanced system. Finally the gasifier model was adjusted for atmospheric operation. This resulted in lowered electrical efficiencies compared to those of the pressurized configuration. https://lup.lub.lu.se/student-papers/record/1549821/file/1549887.exjobb application/pdf 2291838 no 2010 eng biomass fuels gas turbine steam cycle Technology and Engineering 0282-1990 ISRN LUTMDN/TMHP--10/5202--SE 1549821 2010-02-23T13:55:32+01:00 2010-02-23T14:14:21+01:00 2010-02-23T14:14:21+01:00

oai:lup-student-papers.lub.lu.se:1549929 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Daniel Andersson author Erik Åberg author Jinliang Yuan supervisor Department of Energy Sciences v1000205 department In this study a dynamic model of a solid oxide fuel cell system has been<br /> developed. The work has been conducted in cooperation with Modelon<br /> AB using the Modelica language and the Dymola modeling and simulation<br /> tool. Modelica is an equation based, object oriented modeling language,<br /> which promotes flexibility and reuse of code. The objective of the study<br /> is to investigate the suitability of the Modelica language for dynamic fuel<br /> cell modeling. A cell electrolyte model including ohmic, activation and<br /> concentration irreversibilities is implemented and validated against simu-<br /> lations and experimental data presented in the open literature. A 1D solid<br /> oxide fuel cell model is created by integrating the electrolyte model and a<br /> 1D fuel flow model, which includes dynamic internal steam reforming of<br /> methane and water-gas shift reactions. Several cells are then placed with<br /> parallel flow paths and connected thermally and electrically in series. By<br /> introducing manifold pressure drop a stack model is created. The stack<br /> model is used in a complete system model including an autothermal re-<br /> former, a catalytic afterburner and heat recirculation. Four reactions are<br /> modeled in the autothermal reformer. Those are two types of methane<br /> steam reforming, the water-gas shift reaction and total combustion of<br /> methane.<br /> The simulation results have been compared with those in the literature<br /> and it can be concluded that the models are accurate and that Dymola<br /> and Modelica are tools well suited for simulations of the transient fuel cell<br /> system behaviour. https://lup.lub.lu.se/student-papers/record/1549929/file/1549952 application/pdf 1350652 no 2010 eng Solid oxide fuel cell Modelica simulation Technology and Engineering 0282-1990 ISRN LUTMDN/TMHP--10/5204--SE 1549929 2010-02-23T14:14:52+01:00 2012-07-06T20:19:49+02:00 2010-02-23T14:30:14+01:00

oai:lup-student-papers.lub.lu.se:1549960 2025-07-29T13:03:30Z Technology

studentPublicationsH1 David Åström author Klas Jonshagen supervisor Department of Energy Sciences v1000205 department In this study the possibilities for a new steam boiler and a replacement of the old back pressure turbine at AAK Karlshamn are investigated. AAK is a company that refines vegetable oils and one of the factories is in the town Karlshamn in Sweden. At AAK Karlshamn process steam and electricity is generated in a cogeneration facility whit several boilers and a back pressure turbine. To continue whit a reliable steam generation and electricity production a new boiler and steam turbine are required. There are many alternatives for the new boiler and turbine, for example the choice of boiler pressure and superheater temperature and the number of bleeds or extractions from the turbine. For estimation of electricity production and steam demand the power plants simulation program IPSEpro is used. At first a simulation of today’s cogeneration facility was done as a base for the continued simulations of the future alternatives. The results from the simulations of the different solutions were then regarded in the decision of which alternatives to continue whit. To discuss the different alternatives and get a better idea of which specifications for the boiler and turbine that is reasonable contact was taken whit manufacturers of boilers and steam turbines. For the turbine Siemens in Finspång, Sweden was contacted and data for the use of process steam were used for their calculations resulting in a suggestion of a turbine. Some questions were sent to the steam boiler manufacturer MW Power in Finland to check if the specifications of the turbine also were realistic for the boiler. No clear choice of boiler or turbine has resulted from this study. The communication whit manufacturers of boilers and turbines has only begun and a big amount of technical and economical calculations is to be done. https://lup.lub.lu.se/student-papers/record/1549960/file/1549967 application/pdf 4234121 no 2010 swe boiler turbine steam boiler back pressure turbine Technology and Engineering 0282-1990 ISRN LUTMDN/TMHP--10/5205--SE 1549960 2010-02-23T14:32:09+01:00 2010-02-23T14:43:33+01:00 2010-02-23T14:43:33+01:00

oai:lup-student-papers.lub.lu.se:1549974 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Kristina Berglund author Helena Claesson author 1546145 Professor Kenneth M Persson supervisor Division of Water Resources Engineering v1000225 department This thesis is a risk assessment of the risk related to ingestion of heavy metals via peaches irrigated with treated wastewater. The studied heavy metals were Cadmium (Cd), Lead (Pb), Zinc (Zn) and Cupper (Cu).<br /> The thesis is founded on a case study performed on a peach field in Ouardanine, Tunisia. Analysis of the heavy metal content in the treated wastewater used for irrigation was conducted as well as the heavy metal content in the field. Soil properties like pH, organic matter and particle size were analysed to achieve a picture of the heavy metals availability to translocate into plants. Heavy metal content in the peaches was measured and used to calculate the Hazard Index (HI) for consumption of peaches. <br /> <br /> The analysis showed that there were no significant amounts of heavy metals in the irrigation water. The field´s level of Pb, Zn and Cu were well within recommended limits for agricultural soils. The recommended level for Cd was below the detection level, and thereby it was hard to draw any conclusions. Cd level in the fruit was within the recommended limit. Pb was in some cases above the recommended limit, but as in the case with Cd in soil, the detection limit was above the recommended levels. The soil properties showed that the field is appropriate for reuse, as the properties reduce heavy metals ability to translocate to plants. HI was very low for consuming peaches from Ouardanine, thereby indicating a very low risk. According to this study, the irrigation water should not increase heavy metal accumulation in the peach field. However, sludge from the nearby treatment plant is used as fertilizer, and should therefore be a far more important source. https://lup.lub.lu.se/student-papers/record/1549974/file/1549996.pdf application/pdf 2135898 no 2010 eng heavy metals Health risk assessment Ouardanine/Monastir Tunisia peaches Earth and Environmental Sciences Technology and Engineering 1101-9824 10/5004 Examiner: Rolf Larsson 1549974 2010-02-23T14:45:08+01:00 2019-03-27T13:52:35+01:00 2010-03-02T09:57:48+01:00

oai:lup-student-papers.lub.lu.se:1550033 2025-07-29T13:03:30Z HumanitiesTheology Technology

studentPublicationsH2 Oskar Daniel author Guest lecturer Charlotte Sjödell supervisor Professor Claus-Christian Eckhardt supervisor Industrial Design v1000239 department The aim of this project is to investigate whether<br /> scuba diving equipment can be made safer and<br /> more attractive for new divers. The thesis shows<br /> that most accidents occur because of poor equipment<br /> checks and misused equipment. This problem<br /> is the main concern of the thesis.<br /> The resulting product, 4° (Four Degrees), is a<br /> buoyancy compensating vest with a focus on<br /> safer diving, non-complex appearance and easy use. https://lup.lub.lu.se/student-papers/record/1550033/file/1550042.pdf application/pdf 14289826 no 2010 eng Arts and Architecture Technology and Engineering ISRN ISRN: LUT/DVIDE/EX-09/50108-SE 1550033 2010-02-23T16:25:33+01:00 2010-02-23T16:35:21+01:00 2010-02-23T16:35:21+01:00

oai:lup-student-papers.lub.lu.se:1550047 2025-07-29T13:03:30Z HumanitiesTheology Technology

studentPublicationsH2 Semele Sangla author Guest lecturer Andreas Hopf supervisor Professor Claus-Christian Eckhardt supervisor Industrial Design v1000239 department https://lup.lub.lu.se/student-papers/record/1550047/file/1552088.pdf application/pdf 9440136 yes 2009 eng Arts and Architecture Technology and Engineering ISRN ISRN: LUT-DVIDE/EX--09/50103--SE 1550047 2010-02-23T16:36:01+01:00 2010-10-04T13:00:30+02:00 2010-10-04T13:00:30+02:00

oai:lup-student-papers.lub.lu.se:1550051 2025-07-29T13:03:30Z HumanitiesTheology Technology

studentPublicationsH2 Matilda Nordgård author Associate professor Lena Sperling supervisor Professor Claus-Christian Eckhardt supervisor Industrial Design v1000239 department https://lup.lub.lu.se/student-papers/record/1550051/file/1550052.pdf application/pdf 32852413 yes 2010 eng Technology and Engineering Arts and Architecture ISRN ISRN: LUT-DVIDE-EX-10/50122-SE 1550051 2010-02-23T16:40:32+01:00 2010-10-04T13:01:28+02:00 2010-10-04T13:01:28+02:00

oai:lup-student-papers.lub.lu.se:1550282 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jenny Carlström author Lina Hallmer author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550282/file/8956180.pdf application/pdf 1963258 no 2006 swe usability användbarhet Technology and Engineering ISRN: LUTMDNTMAT-5092-se 1550282 2010-02-24T10:20:52+01:00 2018-08-16T12:23:20+02:00 2010-07-15T15:10:00+02:00

oai:lup-student-papers.lub.lu.se:1550287 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Klas Berg author Oscar Ljunggren author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550287/file/8956201.pdf application/pdf 811732 no 2006 eng usability användbarhet Technology and Engineering ISRN:LUTMDNTMAT-5089-SE 1550287 2010-02-24T10:25:28+01:00 2018-08-16T12:34:58+02:00 2010-07-15T15:09:49+02:00

oai:lup-student-papers.lub.lu.se:1550292 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Catia Hansen author Oscar Cosmo author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550292/file/8956170.pdf application/pdf 2676131 no 2005 eng usability användbarhet Technology and Engineering ISRN:LUTMDNTMAT-5079-SE 1550292 2010-02-24T10:29:33+01:00 2018-08-16T11:35:31+02:00 2010-07-15T15:09:39+02:00

oai:lup-student-papers.lub.lu.se:1550301 2025-07-29T13:03:30Z Technology

studentPublicationsH2 André Hellström author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550301/file/8956217.pdf application/pdf 3921655 no 2005 swe usability användbarhet Technology and Engineering ISRN:LUTMDNTMAT-5078-SE 1550301 2010-02-24T10:33:38+01:00 2018-08-16T12:43:22+02:00 2010-07-02T14:25:27+02:00

oai:lup-student-papers.lub.lu.se:1550330 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Jacek Izdebski author Stefan Jonsson author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550330/file/8956254.pdf application/pdf 1070244 no 2005 swe användbarhet usability Technology and Engineering ISRN:LUTHBG-THIT-05-5041-SE 1550330 2010-02-24T10:45:08+01:00 2018-08-16T17:12:15+02:00 2010-07-02T14:25:05+02:00

oai:lup-student-papers.lub.lu.se:1550340 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Caroline Olsson author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550340/file/8956215.pdf application/pdf 1490875 no 2004 eng användbarhet usability Technology and Engineering ISRN:LUTMDN/TMAT-5071-SE 1550340 2010-02-24T10:49:04+01:00 2018-08-16T12:41:24+02:00 2010-07-02T14:24:46+02:00

oai:lup-student-papers.lub.lu.se:1550351 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jessica Erlandsson author Martin Johansson author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550351/file/1848190.PDF application/pdf 33463182 no 2003 eng användbarhet usability Technology and Engineering ISRN:LUTMDN/TMAT-5058-SE 1550351 2010-02-24T10:57:05+01:00 2018-08-16T11:41:01+02:00 2010-07-02T14:24:28+02:00

oai:lup-student-papers.lub.lu.se:1550424 2025-07-29T13:03:30Z HumanitiesTheology Technology

studentPublicationsH2 Emelie Hedén author Guest lecturer Charlotte Sjödell supervisor Professor Claus-Christian Eckhardt supervisor Professor, external supervisor Maria Benktzon supervisor Industrial Design v1000239 department https://lup.lub.lu.se/student-papers/record/1550424/file/1600619.pdf application/pdf 110077658 no 2009 eng Technology and Engineering Arts and Architecture ISRN ISRN: LUT-DVIDE/EX-08/5086-SE 1550424 2010-02-24T12:58:04+01:00 2010-05-11T13:43:52+02:00 2010-02-24T13:17:45+01:00

oai:lup-student-papers.lub.lu.se:1550444 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Mikael Folkesson author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550444/file/8956252.pdf application/pdf 573546 no 2003 eng usability användbarhet Technology and Engineering ISRN:LUTHBG-THIT-03-SE 1550444 2010-02-24T13:47:58+01:00 2018-08-16T16:46:41+02:00 2010-07-02T14:24:11+02:00

oai:lup-student-papers.lub.lu.se:1550448 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Christina Lundgren author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550448/file/8956223.pdf application/pdf 3020925 no 2003 swe användbarhet usability Technology and Engineering ISRN:LUTMDN/TMAT-5059-SE 1550448 2010-02-24T14:09:44+01:00 2018-08-16T12:49:43+02:00 2010-07-02T14:23:59+02:00

oai:lup-student-papers.lub.lu.se:1550504 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anna Harder author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550504/file/8956248.pdf application/pdf 1177089 no 2002 eng usability användbarhet Technology and Engineering ISRN:LUTMDN/TMAT-5053-SE https://lup.lub.lu.se/student-papers/record/1550504/file/8956250.pdf application/pdf no 1550504 2010-02-25T10:14:46+01:00 2018-08-16T16:36:26+02:00 2010-07-02T14:23:15+02:00

oai:lup-student-papers.lub.lu.se:1550508 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Wioletta Kruslund author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550508/file/8956221.pdf application/pdf 357288 no 2001 eng usability användbarhet Technology and Engineering ISRN:LUTMDN/TMAT-5044-SE 1550508 2010-02-25T10:18:11+01:00 2018-08-29T14:50:25+02:00 2010-07-02T14:22:46+02:00

oai:lup-student-papers.lub.lu.se:1550512 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Bachar Khamis author Joakim Eriksson supervisor Ergonomics and Aerosol Technology v1000237 department https://lup.lub.lu.se/student-papers/record/1550512/file/8956246.pdf application/pdf 2116029 no 2002 swe användbarhet usability Technology and Engineering ISRN:LUTMDN/TMAT-5054-SE 1550512 2010-02-25T10:22:46+01:00 2018-08-16T16:06:26+02:00 2010-07-02T14:21:59+02:00

oai:lup-student-papers.lub.lu.se:1550845 2025-07-29T13:03:30Z HumanitiesTheology Technology

studentPublicationsH2 Fredrik Toreblad author Lecturer Per Liljeqvist supervisor Professor Claus-Christian Eckhardt supervisor Industrial Design v1000239 department https://lup.lub.lu.se/student-papers/record/1550845/file/1552043.pdf application/pdf 26390885 yes 2008 eng Technology and Engineering Arts and Architecture ISRN ISRN: LUT-DVIDE/EX-09/50112-SE 1550845 2010-02-25T13:32:28+01:00 2010-02-26T14:39:19+01:00 2010-02-26T14:39:19+01:00

oai:lup-student-papers.lub.lu.se:1553356 2025-07-29T13:03:30Z Technology

studentPublicationsM1 Oscar Nicander author Fredrik Friblick supervisor Engineering Logistics v1000260 department &lt;b&gt;Problem definition:&lt;/b&gt; In the Swedish construction projects, there is a role &quot;logistics manager&quot; whose assignment is to manage the logistics at the production site. Exactly how and which logistic related tasks they perform is uncertain. The study’s aim is to find some general patterns and methods that are used by the role holders.&lt;br&gt;<br /> &lt;b&gt;Purpose:&lt;/b&gt; The study aims to contribute to the development of construction logistics by showing a picture of the role of logistics manager.&lt;br&gt;<br /> &lt;b&gt;Method:&lt;/b&gt; The problem of studying how the logistic are managed at building sites is caused by lack of core descriptions within the construction companies. This means that the way logistics are managed varies in construction projects. Variations between role holders’ positions also affect the work methods of the working role. Hence the study area is not homogeneous the design of the methodology must be adapted accordingly. A quantitative method was chosen and a large population was sought in order to obtain a general picture of work practices.&lt;br&gt;<br /> &lt;b&gt;Conclusions:&lt;/b&gt; There are results in study that partly show a pronounced difference, according to the questionnaire, between construction projects with logistics managers and the alternative group. Where the results show an obvious difference is often in less significant areas. An apparent difference is that the respondent’s answers shows that the evaluations of suppliers almost are redoubled in construction projects with logistics managers. This affects future purchasing processes and collaborations with suppliers because of the increased information about supplier’s behaviour in the supply chain. If one instead chooses to view the two group’s total results, then a pattern in small variations can be perceived. Construction sites with a logistic manager claim to have extended their work efforts in areas such as managing logistic problems, and also in logistics planning as a preventive<br /> measure. Another tendency, according to the recipients, is that projects with a logistic manager are better at utilising advantages that can be achieved with well worked-out logistical solutions.<br /> A general conclusion is that time-consuming tasks with low priority from a producing point of view are claimed to be executed to a greater extent when there is a person focusing on the support process. If the results are considered from a higher plane, there are only marginal improvements due to the works of logistics managers and sometimes none at all. https://lup.lub.lu.se/student-papers/record/1553356/file/1553357.pdf application/pdf 1176311 no 2010 swe supply arrival inspections. supply planning supply arrival construction logistics Logistic manager Technology and Engineering ISRN LUTMDN/TMTP--5692--SE ISRN LUTMDN/TMTP--5692--SE 1553356 2010-03-02T14:24:42+01:00 2010-03-02T15:29:22+01:00 2010-03-02T15:29:22+01:00

oai:lup-student-papers.lub.lu.se:1553366 2025-07-29T13:03:30Z Technology

studentPublicationsM1 Robert Fransson author Fredric Ståhl author Fredrik Friblick supervisor Engineering Logistics v1000260 department &lt;b&gt;Problemställning:&lt;/b&gt; Hur kan tilläggstjänster användas för att sänka totalkostnaden i ett<br /> byggprojekt och kan dessa öka den värdeskapande tiden för<br /> yrkesarbetare?&lt;br&gt;<br /> Hur kan samarbetet mellan entreprenör och leverantör utvecklas för att<br /> gemensamt sänka byggnadskostnaden?&lt;br&gt;<br /> &lt;b&gt;Syfte:&lt;/b&gt; Detta examensarbete ska påvisa hur inköp av tilläggstjänster görs hos ett<br /> entreprenadföretag vid upphandling av material. Det ska också visa<br /> tilläggstjänster som erbjuds och efterfrågas för att hitta synergier i<br /> inköpsarbetet.&lt;br&gt;<br /> &lt;b&gt;Metod:&lt;/b&gt; För att förstå hur inköpsarbetet hos ett entreprenadföretag utförs ska med<br /> en litteraturstudie som underlag kvalitativa intervjuer genomföras.<br /> Genom triangulering ska en heltäckande bild ges av samarbetet mellan en<br /> entreprenör och leverantör.&lt;br&gt;<br /> &lt;b&gt;Slutsatser:&lt;/b&gt; Genom att använda sig av tilläggstjänster från leverantören kan de<br /> indirekta kostnaderna sänkas på en byggarbetsplats vilket ökar den<br /> värdeskapande tiden för yrkesarbetare. Dessa tjänster bör köpas in från<br /> leverantören då de är vana att hantera sina egna produkter och kan utföra<br /> tjänsterna billigare än entreprenören.<br /> Tilläggstjänster uppstår genom en efterfrågan från entreprenören och<br /> leverantören kan oftast möta denna efterfrågan. Tilläggstjänster anses<br /> vara en service och är oftast inget leverantören tar betalt för. Det gör det<br /> svårt för entreprenören att ställa krav på tjänsten samtidigt som priset på<br /> produkten på sikt kan sänkas. Det underlättar möjligheten att kunna<br /> utveckla tjänsterna tillsammans för att öka vinstmarginalerna.<br /> Erbjudandet av tilläggstjänster ska ses som en konkurrensfördel och<br /> aktörerna bör öka sitt samarbete för att kunna effektivisera<br /> byggprocessen tillsammans. Genom att belysa fördelen med att använda<br /> tjänster undermineras kravet på erfarenhet hos den enskilde inköparen. https://lup.lub.lu.se/student-papers/record/1553366/file/1553373.pdf application/pdf 1232630 no https://lup.lub.lu.se/student-papers/record/1553366/file/1553374.pdf application/pdf 39777 no 2010 swe leverantörssamarbete inköp av tjänster specifikation tilläggstjänster Leveransservice Technology and Engineering ISRN LUTMDN/TMTP--5695--SE ISRN LUTMDN/TMTP--5695--SE 1553366 2010-03-02T14:40:20+01:00 2010-03-02T15:29:11+01:00 2010-03-02T15:29:11+01:00

oai:lup-student-papers.lub.lu.se:1553392 2025-07-29T13:03:30Z Technology

studentPublicationsM1 Anders Göransson author Björn Tideman author Everth Larsson supervisor Engineering Logistics v1000260 department &lt;b&gt;Syfte/Mål:&lt;/b&gt; Studiens syfte är att kartlägga övergripande industriella trender som<br /> påverkar företags logistikstruktur samt att kartlägga underliggande trender<br /> kopplade till Fokusområden, KPI och Investeringar.<br /> Studiens mål är att bidra med beslutsunderlag till Consafe Logistics för hur<br /> de skall utveckla sin verksamhet för att möta kunders och potentiella<br /> kunders framtida behov.&lt;br&gt;<br /> &lt;b&gt;Metod:&lt;/b&gt; För att samla material till enkätundersökningen intervjuades sex<br /> framstående personer inom olika delar av logistikbranschen. En<br /> litteraturstudie utfördes för att underbygga experternas förutsägelser.<br /> Slutligen diskuterade författarna experternas och litteraturens åsikter med<br /> Consafe Logistics. Dessa diskussioner mynnade ut i ett 60-tal frågor som<br /> skickades ut till ca 10 000 respondenter anställda hos företag i Norden.<br /> Resultatet av enkätundersökningen analyserades med hjälp av<br /> konfidensintervall och korrelationsberäkningar. Konfidensintervallen<br /> bestämde signifikanta trender och korrelationsanalysen identifierade vilka<br /> trender som är förknippade med varandra.&lt;br&gt;<br /> &lt;b&gt;Slutsatser:&lt;/b&gt; Lean, Supply chain integration och Sustainable supply chains är de<br /> industriella trender som förutspås vara störst de kommande fyra åren. Under<br /> samma tidshorisont förutspås företag öka fokus mest på följande områden;<br /> Information visualisation, Forecasting och Lead time reduction.&lt;br&gt;<br /> KPIs kommer att utvecklas mot att mer spegla kunders och leverantörers<br /> behov och krav. Detta visar sig genom att företag anser att Develop KPIs<br /> together with suppliers and/or customers och Use KPIs that reflect customer<br /> satisfaction kommer att värderas högre de kommande åren. KPIs förutspås<br /> också i större utsträckning att användas för att genomföra operativa<br /> förändringar vilket visar sig genom företags ökade värdering av Use KPIs<br /> when performing operative improvements.&lt;br&gt;<br /> Inom investeringar i mjukvara, kopplade till lager och logistik, förutspås det<br /> inte ske några signifikanta förändringar de kommande fyra åren. 2010 swe Enkätundersökning Warehouse Management System Investeringar KPI Key Performance Indicators Fokusområden Industriella trender Trender Lager Logistik Technology and Engineering ISRN LUTMDN/TMTP--5698--SE ISRN LUTMDN/TMTP--5698--SE 1553392 2010-03-02T14:56:03+01:00 2010-03-02T15:29:00+01:00 2010-03-02T15:29:00+01:00

oai:lup-student-papers.lub.lu.se:1554126 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tobias Månsson author Avo Reinap supervisor Mats Alaküla supervisor Division for Industrial Electrical Engineering and Automation v1000203 department By introducing spectral or polynomial functions to perturb the shape of the rotor in an electrical machine that was previously optimized by conventional means, it was shown that performance parameters can be further improved, in some cases significantly.<br /> This was accomplished by developing and applying an optimization method designed for use with a commercial finite element simulation software (Maxwell). This report describes the method and its development. Also issues the user must consider when applying the method, e.g. related to accuracy or choice of objectives, are discussed. Further, some results from the optimizations are presented - even though not all details can be published<br /> for confidentiality reasons.<br /> The results shows a success in improving the objectives (e.g. torque ripple and/or power factor) while keeping other parameters of the motor unchanged (e.g. inductances). The method can take different load points into consideration, and works for different kinds of motors. The improvement can be significant, for one motor design, torque ripple and power factor were simultaneously improved: reduced by 13 %-units and increased by 2.5 %-units,<br /> respectively.<br /> This is a public version of an internal ABB report, and hence some sources of information and results are confidential. https://lup.lub.lu.se/student-papers/record/1554126/file/1578648.pdf application/pdf 4300010 no https://lup.lub.lu.se/student-papers/record/1554126/file/1580290.pdf application/pdf 176751 no 2010 eng Technology and Engineering 5269 1554126 2010-03-04T16:49:46+01:00 2014-09-04T08:30:16+02:00 2013-01-23T12:35:49+01:00

oai:lup-student-papers.lub.lu.se:1554130 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Asta Andresdottir author Gunnar Lindstedt supervisor Associate professor, head of department Ulf Jeppsson supervisor Division for Industrial Electrical Engineering and Automation v1000203 department A personal transporter is under development at LTH, Industrial Electrical Engineering and Automation, IEA. A wireless link is desired to develop control remotely for the transporter. The development of the control becomes easier without wires and if the transporter can move freely within the range of the link.<br /> A link is built, using Bluetooth devices and a microprocessor from Microchip.<br /> This link is able to carry an eight bit signal back and forth. The development of the transporter has not reached a state in which it can receive or transmit signals. Instead the link is tested with a signal generator and an oscilloscope at first and then for DC-motor control.<br /> A test run is carried out with a signal generator and an oscilloscope. A signal is created with the signal generator, which is fed to the microcontroller that forwards the signal by a Bluetooth transceiver. Another Bluetooth transceiver receives the signal at the remote site. The signal is forwarded to a computer hosted control system, dSPACE, and a control signal is produced. The control signal is sent back to the microprocessor by the Bluetooth transceivers and forwarded to an oscilloscope via a D/A converter.<br /> The link is furthermore used to control a DC motor. A PWM signal is created<br /> using the microcontroller and forwarded to the motor via an H-bridge, an<br /> electronic circuit that controls the direction and velocity of the DC motor. A potentiometer is used to sense the location of the motor. The voltage from the potentiometer is forwarded to the microcontroller that converts it to a digital signal. The digital signal for the measurement is sent through the Bluetooth transceivers to dSPACE where the desired control signal is calculated. The control signal is sent to the microcontroller that generates the corresponding PWM signal.<br /> An 8 bit signal can be sent and received with the wireless Bluetooth link.<br /> Some problems occurred with buffer overflows, which were eliminated by tuning<br /> the sampling of signals. The range of the wireless link is close to 40 m and should be enough to develop control for the transporter. Depending on the amount of signals, that affect the control of the transporter, a multichannel link might be desirable. https://lup.lub.lu.se/student-papers/record/1554130/file/1578674.pdf application/pdf 1351752 no https://lup.lub.lu.se/student-papers/record/1554130/file/1578675.pdf application/pdf 112942 no 2009 eng Technology and Engineering http://www.iea.lth.se/publications/MS-Theses/Full%20document/5265_full_document.pdf 5265 1554130 2010-03-04T17:08:09+01:00 2014-09-04T08:30:16+02:00 2013-01-22T09:09:51+01:00

oai:lup-student-papers.lub.lu.se:1554134 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Gudmundur Benediktsson author Gunnar Lindstedt supervisor Associate professor, head of department Ulf Jeppsson supervisor Division for Industrial Electrical Engineering and Automation v1000203 department In a modern society there is a constant increase in electrical use but at the<br /> same time the environmental awareness among consumers is rising. This master theses aims at investigating the possibilities in cost and energy efficient<br /> lighting control techniques.<br /> This master thesis is written for the Measurement Technology and Industrial<br /> Electrical Engineering division, IEA, within the Faculty of Engineering<br /> of Lund University in cooperation with AB Regin in Landskrona.<br /> Lighting control systems are studied from an energy saving perspective and<br /> the relation to reduction of carbon dioxide emission is addressed. Designing<br /> tools, such as LENI and ELI, are introduced and their relation to international standards in electrical and lighting design. To illustrate the cost efficiency of lighting control systems, a case study is conducted at Schenker logistics in Växjö, revealing the payback time of the lighting control installation.<br /> A market study is carried out, where available lighting control systems are<br /> investigated. Different protocols are compared based on parameters such as<br /> data rate, power consumption and cost. The aim of this study is to select<br /> one existing system to be implemented on one of AB Regin’s platforms. For<br /> this purpose a selection criteria is composed.<br /> Digital Addressable Lighting System, DALI, is chosen for implementation<br /> along with the EXOcompact controller from AB Regin. The implementation<br /> deals with building an interface between the EXOline, used by AB Regin,<br /> and the DALI line, defined by the DALI protocol. A DALI Master Unit is<br /> built around an Atmel ATmega186 microprocessor and some testing of sending<br /> messages from the EXO system to a DALI enabled lamp is performed.<br /> Based on the case study conducted and other sources, the cost and energy efficiency of lighting controle systems are proven. The concept of controlling lights from AB Regin’s EXOSystem is also proven with implementation and testing. https://lup.lub.lu.se/student-papers/record/1554134/file/1578659.pdf application/pdf 4097681 no https://lup.lub.lu.se/student-papers/record/1554134/file/1578660.pdf application/pdf 457446 no 2009 eng Technology and Engineering http://www.iea.lth.se/publications/MS-Theses/Full%20document/5267_full_document.pdf 5267 1554134 2010-03-04T17:14:56+01:00 2014-09-04T08:30:16+02:00 2013-01-23T13:42:13+01:00

oai:lup-student-papers.lub.lu.se:1554138 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Byrhult author Axel Bergman author Bengt Simonsson supervisor Mats Alaküla supervisor Division for Industrial Electrical Engineering and Automation v1000203 department The increasing environmental awareness in today’s society has created a<br /> demand for vehicles with less environmental impact. One way to meet the resulting need is to construct hybrid vehicles, hybrid operation which involves a combination of different energy conversion- and storage principles. This project deals with just such a hybrid solution, a parallel hybrid. To construct a competitive solution, it must both be comparable in terms of performance, comfort and price of existing vehicles on the market. Costs can be minimized by using standardized components to the extent possible.<br /> The idea is that a standard internal combustion engine combined with a<br /> sequential gearbox and parallel to the combustion engine is coupled an electric motor. The electric motor can be used as the propelling engine, both in combination with internal combustion engine and on its own. In addition, it handles the synchronization of the gearbox at gear change. Together with a shift robot, fully automated and very rapid gear changes can be achieved, without disturbing the driver. This allows more gears to be introduced and the internal combustion engine can be kept at an optimal operating point that reduces emissions and lowers fuel consumption. The electric motor also substitutes the reverse gear, acts as a starter motor and alternator, reducing the number of components.<br /> This thesis work deals with precisely this, namely to prepare and commission<br /> an automated sequential gearbox for a parallel hybrid. The project has<br /> been carried out at the Department of Industrial Electrical Engineering and<br /> Automation (IEA) at Lund University in collaboration with Saab Automobile<br /> in Trollhättan. https://lup.lub.lu.se/student-papers/record/1554138/file/1578640.pdf application/pdf 2565168 no 2009 eng Technology and Engineering http://www.iea.lth.se/publications/MS-Theses/Full%20document/5263_full_document.pdf 5263 1554138 2010-03-04T17:19:21+01:00 2014-09-04T08:30:16+02:00 2013-05-22T11:11:48+02:00

oai:lup-student-papers.lub.lu.se:1554148 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Per Fryking author Marcus Lindqvist author Gunnar Lindstedt supervisor Bengt Simonsson supervisor Division for Industrial Electrical Engineering and Automation v1000203 department The project was performed for FAS Converting Machinery AB (FAS) in Ystad with supervision from Industriell Elektroteknik och Automation at LTH.<br /> FAS is a company that makes machines for producing plastic bags on a roll. The problem given was to develop a sensor for detecting the perforations in the bags to ensure that the correct amount of bags was rolled up and that the tearing was in the right place. If the machine tries to tear off where there is no perforation the fine mechanics is subjected to great stress. This was solved by detecting light penetrating the bag. The spectrum of the light is infrared due to the fact that it penetrates plastic better then visible light. To ensure that a perforation is detected and not a deformation in the material two things were considered. The first thing was to eliminate as many wrinkles as possible this was done by letting the plastic run over a spherical surface. The second thing was to use redundant sensors and make sure both of them triggered at the same time. What makes it difficult is that the plastic is of various density, thickness and length and a manual calibration is not applicable.<br /> Therefore an automatic calibration algorithm had to be designed. The idea is to reduce 95% of the measured values to zero and therefore get less noise in the data. If the two sensors found a deviation at roughly the same time a signal was sent to the PLC which kept count of the produced bags.<br /> Other problems are that the plastic might be folded up to 16 times and therefore gives a weak signal and the perforations are not perfectly overlapping each other. This was solved by designing the sensor holders like a “U” i.e. two tongues one with the IR-LED and one with the sensor. The tongue with the sensor is inserted in the fold and therefore reduces the amount of plastic to sense through. The method that was developed did manage to count the perforations in the converted plastic films. The drawback was that this method could not be implemented to fully work with all the different types of material, folding and speeds. In order to use this method, a calibration needs to be done on every single material or design change of the product produced. The automatic calibration developed to get rid of the manual calibration was not robust enough to handle all possible situations without interaction with the operator. https://lup.lub.lu.se/student-papers/record/1554148/file/1578644.pdf application/pdf 2138338 no https://lup.lub.lu.se/student-papers/record/1554148/file/1578864.pdf application/pdf 656028 no 2009 swe Technology and Engineering http://www.iea.lth.se/publications/MS-Theses/Full%20document/5261_full_document.pdf 5261 1554148 2010-03-04T17:27:54+01:00 2014-10-07T11:16:39+02:00 2014-10-07T11:16:39+02:00

oai:lup-student-papers.lub.lu.se:1554157 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Andreas Jönsson author Christoffer Örndal author Magnus Akke supervisor Dr. Olof Samuelsson supervisor Division for Industrial Electrical Engineering and Automation v1000203 department The forceful storms and the stricter regulations from the government within the last years have forced E.ON to start a project called “Krafttag”. The goal of the project is to ensure uninterrupted power supply to the customers by investing in underground cables. A problem with the underground cables is the high natural capacitance that contributes to an enlarged current in the case of an earth fault. The increase will among other things make the earth fault detection more complicated.<br /> To compensate for the capacitive fault current caused by the cables, a coil in the neutral point of the transformer could be installed. The coil creates an inductive current that if correctly tuned will balance out the capacitive fault current. In systems with mostly overhead lines a change of the net will have a minor effect on the needed compensation and tuning is less critical. But with underground cables this is no longer the case, this introduces demands on systems that could tune the coils inductance quickly and effectively.<br /> This master thesis focuses on evaluating the different methods for automatic tuning that are available on the market today and evaluate how they can be improved. Those improvements are then implemented, and a new method is created. The different methods are evaluated in DLAB, a lab model of a 10 kV distribution net. Tests have been performed on four different net sizes in both symmetrical and unsymmetrical conditions.<br /> The evaluation focus on how well the different methods tune the system and how essential input parameters should be set. The two main parameters evaluated are trig level and detuning.<br /> The result shows that all the evaluated methods works but have room for improvements in both speed and precision. The tests also confirm some of the problems that E.ON encountered when setting the trig level. https://lup.lub.lu.se/student-papers/record/1554157/file/1578636.pdf application/pdf 1396050 no https://lup.lub.lu.se/student-papers/record/1554157/file/1578879.pdf application/pdf 107968 no 2009 swe Technology and Engineering http://www.iea.lth.se/publications/MS-Theses/Full%20document/5264_full_document.pdf 5264 1554157 2010-03-04T17:47:49+01:00 2014-09-04T08:30:16+02:00 2013-01-23T13:22:09+01:00

oai:lup-student-papers.lub.lu.se:1554162 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anders Larsson author Tore Paulsson author Gunnar Lindstedt supervisor Ulf Jeppsson supervisor Division for Industrial Electrical Engineering and Automation v1000203 department 2009 eng Technology and Engineering http://www.iea.lth.se/publications/pubmsc.html yes 5266 1554162 2010-03-04T17:55:17+01:00 2014-09-04T08:30:16+02:00 2013-01-23T12:17:34+01:00

oai:lup-student-papers.lub.lu.se:1554168 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Karl Löfgren author Henrik Nilsson author Gunnar Lindstedt supervisor Bengt Simonsson supervisor Division for Industrial Electrical Engineering and Automation v1000203 department This project was done for the company Beijer Electronics Products AB and the task was given by the hardware development department of the company.<br /> The project was about developing a concept proposal for a new generation operator panels. This was done to inspire the product developers at Beijer Electronics with innovative ideas before the actual operator panel development.<br /> More in detail the objective of the project could be divided into three main parts:<br /> • Generating a concept proposal<br /> • Further development of the concept proposal<br /> • Making a basis for a future input unit prototype (a HID) for the generated<br /> proposal<br /> During the first part, 26 concept proposals were generated after research and<br /> brainstorming. The proposals were first evaluated by the project group and then presented to some representatives from Beijer Electronics. The representatives decided that the project group should further develop two of the concept proposals.<br /> During the further development, 3D CAD models were done. A third concept proposal was derived from one of the first two on the initiative of the project group. A CAD model of the new proposal was also done. Investigations were made on which materials and manufacturing methods could be used for the parts of the concept proposals. The competing materials and methods were evaluated and the best ones were presented in the report.<br /> The third part of the project consisted of making a basis for a future input unit prototype. In this part theory about capacitive touch sensing was researched and explained. Also guidelines on how to make PCB with a touch sensing application was researched and described. https://lup.lub.lu.se/student-papers/record/1554168/file/1578868.pdf application/pdf 6120490 no https://lup.lub.lu.se/student-papers/record/1554168/file/1578869.pdf application/pdf 336781 no 2009 eng Beijer Electronics operator panel HID HMI concept proposal prototype Technology and Engineering http://www.iea.lth.se/publications/MS-Theses/Full%20document/5262_full_document.pdf 5262 1554168 2010-03-04T18:00:02+01:00 2014-09-04T08:30:16+02:00 2013-01-23T12:21:19+01:00

oai:lup-student-papers.lub.lu.se:1554248 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Daniel Lehto author Civil Engineering - Railway Construction (BSc) LURS00009 department In recent years considerable investments have been made in the Swedish infrastructure and they are expected to continue in the near future. Large public investments within one particular area stimulate market growth and more companies will choose to establish themselves within this industry. When the market environment changes, even major players with large market shares will have to review their activities and adapt to the new competitive situation. Streamlining operations and minimizing unnecessary costs are key factors in preventing loss of market share to competitors, who have built their entire business based on current conditions.<br /> Banverket Projektering has had a leading market position within its field of operation for a considerable period. Now as an independent department within the government authority Banverket, there are still some old and unbusinesslike traditions left within the corporate culture. This can be clearly observed in areas such as deviation handling and experience feedback. Not all deviations are reported and similar faults continue to occur.<br /> The importance of an efficient deviation handling and experience feedback has to be implemented within the organization at all levels. This can only be possible with continuous training and information regarding company work procedures and quality management routines. A further improvement would be to redistribute the responsibilities within these areas. A learning organization moving in the right direction should be the ultimate goal for this work.<br /> During this study, Banverket Projektering was merged with Vägverket Konsult to form the new state-owned company Vectura. The study is based on information from current company procedures, working practices and document management systems. Surveys and interviews with company staff have also played an important part. https://lup.lub.lu.se/student-papers/record/1554248/file/8961091.pdf application/pdf 890537 no 2010 swe avvikelsehantering erfarenhetsåterföring affärsmässighet lärande organisation Railway transport technology Järnvägstransportteknik Technology and Engineering 1554248 2010-03-02T00:00:00+01:00 2018-10-18T10:10:17+02:00 2010-03-05T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1554251 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Stefan Carlsson author Civil Engineering - Railway Construction (BSc) LURS00009 department Summary<br /> The station has always played an important role in development. In Sweden, railway building started in the middle of the 1900th century. The government financed the main rail lines, while private railway companies financed the small lines. The expansion of the railway lines was lead and planned by militaries, therefore the stations generally were drawn by trained militaries. Several station construction workers travelled abroad in order to study stations.<br /> Many of the private line’s station buildings were drawn by layman or signboard agencies, which contributed that several stations look alike each other. The bigger stations got a position that emulated the church and the council house.<br /> In the beginning of the railway&#39;s building time it was important to produce an inexpensive station building that could to supply all necessary services, as vestibule, sale of tickets, luggage storage, offices and waiting room. Post- and telegram offices were also available on stations of that time..<br /> The railway needs a straight line with small inclinations. It should also be drawn so that trespasses, disturbances, barrier effects and risks are limited. The station should be located as central as possible with regard for existing and planned residential areas, workplaces, services, education and existing traffic systems. Special important is it that regional functions are located near the station.<br /> The station will be the point of intersection between different transport systems, which means a good access and an often attractive situation in the town. A well designed station will be easy to find and to reach. The technical systems will be understandable and applicable for the persons that will be served. The travellers have needs of service before, during and after the travel that in various ways can be linked to the terminal. The station building should be given such a design that it advertises the terminal as a travel centre. The building ought to be oriented and formulated so that the travellers easily can see the traffic on the station. Customer requirements as information, sale of tickets, good illumination, parking possibilities, transfer buses, taxi parking and travellers parking areas, rain protections will please the customers. In southern Sweden it is common not to build any waiting room or that it is considered to be tiny. The reason for this is that they might be a place for troublesome elements.. In northern Sweden this argument is less common. There, the waiting room is needed due to a harsher climate.<br /> Modern stations have become more equipped for functionally disabled persons. There different aids are needed in order to meet these people. https://lup.lub.lu.se/student-papers/record/1554251/file/8961092.pdf application/pdf 2762882 no 2010 swe stationer utformning kundkrav Railway transport technology Järnvägstransportteknik Technology and Engineering 1554251 2010-01-28T00:00:00+01:00 2018-10-18T10:10:19+02:00 2010-03-05T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1554254 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Tobias Lundquist author Computer Science and Engineering (BSc) LUR000047 department This paper describes the development of a DLNA digital media server. The server runs on top of an OSGi stack on a residential gateway. The server supports adding and removal of content sources at runtime. The problems with handling updates from diffrent media sources are analyzed and discussed. Also soulutions to these problems are also proposed. The diffrent techniques for the implementation are described and evaluated. https://lup.lub.lu.se/student-papers/record/1554254/file/8961093.pdf application/pdf 845678 no 2010 eng osgi media server dlna upnp Systems engineering, computer technology Data- och systemvetenskap Technology and Engineering 1554254 2010-02-04T00:00:00+01:00 2018-10-18T10:10:20+02:00 2010-03-05T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1554400 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Magnus Fagerlund author 1554399 Jonas Körner author 1554433 Professor Fredrik Nilsson supervisor Packaging Logistics v1000238 department This thesis explore how the balance of a packaging standardisation and adaptation strategy, from a distribution and sales perspective on different markets, can satisfy the markets needs and increase sales. An inductive approach has been used as well as the thesis is both explorative and explanatory. Since the authors wanted to find a broader perspective and analysing secondary data, the following data collecting methods have been used: literature research, interviews, questionnaire and observations. Furthermore, a single case study research approach has been used in the thesis. The case study approach leads to expanding and generalising theories but does not provide a statistical generalisation.<br /> The literature studies started the master thesis where previous packaging as well as standardisation vs. adaptation research was examined. Based on packaging logistical theories, a packaging questionnaire was sent to the case company’s market units. Furthermore, in-depth interviews were held with employees at selected markets. To further broaden and deepen the knowledge regarding the perception of the packaging portfolio at the case company’s markets, field studies at two of the selected markets were conducted where observations and interviews with different actors were performed. It is concluded that successful retailing is impacted by the choice of packaging strategy and what packaging portfolio to use on different markets. Different markets have different packaging related needs and in the case of Sony Ericsson, the authors have identified the need of going towards a more locally adapted packaging strategy. However, as previously discussed (e.g. see Jahre &amp; Hatteland, 2003), trade-offs exist between logistical efficiency and marketing potential.<br /> This thesis has shown that there is a need for Sony Ericsson to adapt their packaging portfolio to market specific needs and demands in order to compete successfully. The authors recommend that Sony Ericsson divides their packaging portfolio into two different portfolios, one for pre-sales promotion markets (where the primary packaging is used as a marketing tool) and one for post-sales promotion markets (where the primary packaging should confirm the purchase). The most important variable that separates these markets is the size of the primary packaging. Pre-sales promotion markets need larger primary packaging in order to attract end-customers. This is no need on the post-sales markets.<br /> The authors have developed two models in order to identify how the sales channels are functioning (MAJO model) and how well the current packaging portfolio is perceived at the focus markets (packaging portfolio evaluation model). These models have been of major importance in the analysis and the authors strongly believe that they could be used at other global companies in the fast moving consumer electronics goods industry. https://lup.lub.lu.se/student-papers/record/1554400/file/1554503.pdf application/pdf 25880695 no 2010 eng standardisation and adaptation. packaging logistics packaging strategy packaging portfolio Technology and Engineering ISRN: 10/5076 1554400 2010-03-08T11:57:56+01:00 2010-03-08T13:33:51+01:00 2010-03-08T13:33:51+01:00

oai:lup-student-papers.lub.lu.se:1320162 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Daniel Malm author Ann-Ida Pettersson author Magnus Nordberg supervisor Fire Protection Engineering 3,5 years v1000286 department Division of Fire Safety Engineering v1000219 department Division of Risk Management and Societal Safety v1000224 department In this report statistics concerning the reliability of sprinkler systems from seven countries has been analysed. The objective of the report has been to determine the reliability of sprinkler systems in Sweden and to present suggestions on measures to increase the reliability. The main conclusion that has been drawn is that the reliability of sprinkler systems in Sweden is 92 percent according to the analysis of Swedish statistics, and that this figure finds support in statistics from other countries. Further results are that the quality of design, installation, maintenance and inspection of sprinkler has to be improved and that the Swedish incident report has to be revised. https://lup.lub.lu.se/student-papers/record/1320162/file/1320163.pdf application/pdf 1746046 no 2008 swe Brandteknik Fire Protection Engineering incident report. statistics Reliability automatic sprinkler system Building construction Byggnadsteknik Technology and Engineering 1402-3504 5270 1320162 2008-10-31T00:00:00+01:00 2014-03-10T10:40:27+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1320203 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jonas Stålenhag author Martin Modig author Stefan Sveningsson supervisor Fredrik Nilsson supervisor Packaging Logistics v1000238 department What is essential for Sony Ericsson to consider when introducing the mobile TV/Video service? Given a technological development, such as mobile TV/Video, how does it affect a company&#39;s strategic possibilities and value chain positioning? https://lup.lub.lu.se/student-papers/record/1320203/file/1320204.pdf application/pdf 1050300 no 2006 eng strategy technology mobile tv sony ericsson competition value chain business model hypercomplex positioning Technological sciences Teknik Production technology Produktionsteknik Technology and Engineering 1320203 2008-10-28T00:00:00+01:00 2010-02-01T14:40:04+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1320214 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Elin Karlsson author Olsson Annika supervisor Packaging Logistics v1000238 department This diploma work is a result of a co-operation between the Faculty of Engineering, Lund University (LTH) and the department of Material Treatment, Tetra Pak Packaging Solutions AB in Lund, Sweden. The production and tests were done at Tetra Pak Limburg respectively Lund, Autumn 2007.<br /> <br /> Coating of large holes in a paperboard with few tenth of µm thickness layer of low density polyethylene (denoted LDPE) is challenging. The conditions during coating can lead to the appearance of small holes in the LDPE membrane, called holes in plastics (denoted HiP). The goal of this diploma work is to identify and test new top view hole geometries and evaluate the appearance of HiP located next to the edge of the hole.<br /> <br /> The hole in the paperboard could be divided into two sections, inlet and outlet position, where inlet position is the edge of the hole that meets the LDPE layer first. HiP in inlet position could be related to the stretched LDPE layer, while HiP in outlet position could be caused by the LDPE build-up that is a consequence of lift in the paperboard during coating.<br /> <br /> Six new test geometries were produced with conventional production machines. These, together with circular reference holes were divided into three theoretical groups and evaluated separately and compared within each group.<br /> <br /> Test results showed that the top view geometry has an influence on HiP. It can also be proved that the lift in the paperboard is directly proportional to the amount of HiP in outlet position. Surprisingly, the amount of HiP in inlet position is reversely proportional to the lift in the paperboard, thus a small lift corresponds to a large amount of HiP. https://lup.lub.lu.se/student-papers/record/1320214/file/1320215.pdf application/pdf 3166879 no 2007 eng Coating and surface treatment Produktionsteknik Production technology 'Hole geometry' Lamination 'Hole in paperboard' Skikt och ytbehandling Technology and Engineering 1320214 2008-10-24T00:00:00+02:00 2010-02-01T14:40:04+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1320231 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Lindbäck author Per-Erik Andersson supervisor Innovation v1000241 department This Master thesis was carried out in cooperation with BAE Systems Hägglunds in Örnsköldsvik and its purpose is to improve the efficiency of the hydraulic system for the cooling fan drive in the track driven military vehicle BvS10.<br /> <br /> The efficiency of the pump and motors are summarized using data from the subcontractors and the efficiency of the pipe line system is derived using Bernoulli&#39;s formula for steady isothermal flow and the percentage opening of the proportional valve. Calculations are done in a number of different cases because of the vehicles supposed ability to operate at a wide scale of different temperatures and at very different types of terrain. These calculations are illustrated by graphs of how much pressure loss there is through the pipe line system.<br /> <br /> To verify the results of the calculations a practical experiment was done. Fittings in two different sizes with hoses were connected to a hydraulic system and the pressure before and after were measured. The result of this experiment was that the difference between the practical and the theoretical pressure loss was greater for the smaller hoses and fittings compared to the larger ones. This amplified corresponding spots in the theoretical calculations.<br /> <br /> Furthermore a simulation software called SimulationX was used to visualize how the different parts of the efficiency contributes to the total efficiency and to show how much the recommended changes would affect the system. https://lup.lub.lu.se/student-papers/record/1320231/file/1320232.pdf application/pdf 723224 yes 2008 swe vacuum technology hydraulics Mechanical engineering SimulationX Hydro motor Hydro pump Hydraulics Volumetric efficiency Hydro mechanical efficiency vibration and acoustic engineering Maskinteknik hydraulik vakuumteknik vibrationer akustik Technology and Engineering 1320231 2008-04-14T00:00:00+02:00 2012-01-11T16:22:32+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1320247 2025-07-29T13:03:30Z LifeEarthScience Technology

studentPublicationsH3 Anna Ekdahl author Lars Bengtsson supervisor Division of Water Resources Engineering v1000225 department The main objective of this thesis is to investigate the distribution of hydrological resources over time and space in two sub basins of the Lake Poopó area in Bolivia. This investigation is made in order to evaluate how supply and demand can be balanced and what effect the insufficiency of hydrological resources has on the socio economic situation. The two main problems in the area regarding water resources, are the variations over time and space and the contamination. A long history of mining industry without environmental regulations has lead to contamination of water and soil. The precipitation varies both seasonally within the year and also from year to year. In order to evaluate the situation, the water supply and demand was estimated. The total water resources in the study area would not have to be insufficient if quality and distribution over time and space could be improved and controlled. Water storage and support to the small mining industry could accomplish this. The main hindrances for improvement are the poverty and general low level of education. If water quality of and accessability to the water does not improve, leading to additional income sources, the area will depopulate, become entirely dependent on the mining industry and completely die out if or when the mineral deposits dry out. https://lup.lub.lu.se/student-papers/record/1320247/file/1320248.pdf application/pdf 2341178 no 2007 eng teknisk geografi teknisk geologi Poopó altiplano Bolivia water resources hydraulic engineering Civil engineering water contamination acid mine drainage Hydrogeology Hydrogeologi geographical and geological engineering offshore technology soil mechanics Väg- och vattenbyggnadsteknik Earth and Environmental Sciences Technology and Engineering 1320247 2008-04-17T00:00:00+02:00 2009-10-18T18:43:38+02:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1320333 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Mikael Löfgren author Ekholm Anders supervisor Department of Architecture and Built Environment v1000213 department The primary focus of this Master thesis is to study how industrial house building can be implemented during production of rental flats under the terms of public procurement. In order to determine a suitable working process as well as presenting a possible architectonic result of the process, a case study is carried through.<br /> <br /> A housing projekt is designed on a site i Malmö, where the commisioner is MKB Fastighets AB and the contractor is NCC Komponent with the industrial building system NCC Komplett. The focus of the design is to accomplish high quality apartments to a resonable price, as well as solving the overall scheme for the site.<br /> <br /> The housing projekt, Kv. Flaggskepparen, built on the consept of a single house model, used to handle the entire site, shows that the building system is well suited to accomodate the commisioners demands.<br /> <br /> In order to reach the best possible architectonic result with the building system, cooperation initiatded in an early stage of the process is neccesary.<br /> <br /> A model is proposed to handle the situation under the terms of public procurement. The model suggest that the geometrical design is mainly carried out after inquiry and that architectonic qualities should mainly be defined in a non geometrial way for inquiry. https://lup.lub.lu.se/student-papers/record/1320333/file/1320334.pdf application/pdf 6893579 no 2008 swe industriellt byggande flerbostadshus flaggskepparen löfgren mikael NCC Komponent MKB arkitektur examensarbete projekteringsmetodik samarbetsformer arbetsmodell Technological sciences Teknik Technology and Engineering 1320333 2008-04-10T00:00:00+02:00 2008-05-13T00:00:00+02:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316526 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Skanse author Annika Olsson supervisor Packaging Logistics v1000238 department Abstract<br /> <br /> Perforations are one of Tetra Paks oldest inventions of how to open their carton packages. They have been a part of Tetra Briks product portfolio for over 30 years and quality testing is important. Bad openability, with plastic residues covering the torn hole, is a problem that needs to be addressed.<br /> <br /> When tearing a package with perforation all people do it differently. By using a mechanical tearing method during testing it is possible to reduce this variation. A method like this is developed but it is not used widely and its results are often not satisfactory. The aim for this work is to investigate tearing done with this method. What to measure and how measured results are changed by material parameters affecting the openability.<br /> <br /> The practical part of this work is divided into two parts. The first is qualitative tests with the goal to increase the knowledge of the measuring procedure and its resulting energy curve. How is the board breaking? What energies, forces etc. should be measured to be able to extract as much valuable information as possible. The second part has a quantitative approach, to correlate the energy measurements with openability results, by measuring tearing energy on folded packaging material. This part also evaluates the method itself and which measured responses that are best to use to describe the openability problem.<br /> <br /> The results show that when using the mechanical tearing method one uses out- of- plane shear forces to break the perforation. The total energy during tearing is the best and most robust response to use if one wants to correlate tearing energy with openability. Material and process parameters that affect measured Total energy as well as the openability are the knife type, perforation engagement, and polymer grammage of the inside polymer layer. The variation in results during measurements, caused either by the equipment or the material, needs to be lowered as the method shows poor repeatability. It is most likely possible to develop a new or enhance the existing method to focus on tearing energy to perform test on perforations and predict issues with openability. https://lup.lub.lu.se/student-papers/record/1316526/file/1316527.pdf application/pdf 4177440 no 2009 eng Tearing Openability Perforation Tetra Pak Production technology Produktionsteknik Technology and Engineering 1316526 2009-01-22T00:00:00+01:00 2010-02-01T14:40:03+01:00 2009-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316602 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Mamoru Katsuki author Professor Ronny Berndtsson supervisor Division of Water Resources Engineering v1000225 department Submarine groundwater discharge (SGD) affects environmental conditions in semi-enclosed sea areas. Semi-enclosed areas often experience eutrophication caused by excess nutrient transport from agricultural areas. However, it is often unclear how much the nutrients that are transported through the groundwater discharge. Therefore, it is necessary to quantify groundwater discharge to the sea. For this quantification, a methodology to estimate SGD is presented. A distributed groundwater recharge model (GRM) and a groundwater flow model (GFM) were developed and coupled to estimate SGD from Kikuchi River basin into the Ariake Bay, Kumamoto, Kyushu, Japan. The river basin located in Kumamoto prefecture was studied as a representative area for the entire Ariake Bay catchment. The GRM separates rainfall into direct runoff, evapotranspiration, and groundwater recharge. Parameters are set based on land use. Groundwater level was calculated by the GFM to estimate subsurface water runoff, base flow to the river, and evaporation from the shallow groundwater table. The SGD was calculated using a water balance approach. The result of calculation shows that SGD accounts for 47 mm year-1, corresponding to 3.6 % of the river discharge and 2.3% of the average annual rainfall. The results are in the same range as earlier reported in the research literature and thus appear reasonable. https://lup.lub.lu.se/student-papers/record/1316602/file/1316603.pdf application/pdf 3097652 no 2008 eng hydrological model Groundwater flow model numerical simulation submarine groundwater discharge water balance analysis Civil engineering soil mechanics offshore technology hydraulic engineering groundwater recharge Väg- och vattenbyggnadsteknik Technology and Engineering 1101-9824 08/5004 1316602 2009-01-28T00:00:00+01:00 2019-03-27T10:33:14+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316770 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Fia Schütz author Agneta Gulz supervisor Cognitive Science v1000050 department The CASA-paradigm, Computers Are Social Actors, was introduced in the book &quot;The<br /> <br /> Media Equation&quot; by Reeves and Nass. One of their experiments concluded that we tend to be polite to computers in the same way as we are to people. In this study I have replicated Reeves and Nass experiment but instead of a text-based interface I have used a virtual agent<br /> <br /> in order to find out if we are polite to the agents, or still to the computer. Two experimental setups was conducted. The two setups had a common first part that was carried out on one<br /> <br /> computer with one agent. In the first setup the same agent carried out the evaluated and half of the participants did it on the same and the other half on a new computer. In the second setup the experiment was carried out on the same computer, and half of the evaluation was made by the same agent ant the other half by a new agent. The results from experiment one shows that we are polite to the agent, not the computer. Experiment two turned out to be a bit more complicated when the results showed that those participants who got bad results, and thus negative feedback, also was less polite to that agent. More research needs to be done to get answers to theese questions, but a tentative answer is that agents are<br /> <br /> indeed social actors, if we feel hurt by an agent, we no longer feel compelled to be polite to them. https://lup.lub.lu.se/student-papers/record/1316770/file/1316771.pdf application/pdf 398963 no 2007 swe numerical analysis Computer science politeness Human-Machine Interaction The Media Equation CASA-paradigm Virual Agents systems control Datalogi numerisk analys system kontroll Artificial intelligens Artificiell intelligens Technology and Engineering 1316770 2008-05-05T00:00:00+02:00 2009-04-20T10:45:09+02:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316782 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Daniel Häggroth author Sebastian Håkansson author Daniel Hellström supervisor Packaging Logistics v1000238 department The company is one of the largest in the world within its industry, producing and distributing its products in a global supply chain. The purpose of the project was to explore the potential of using Radio Frequency Identification (RFID) technology in the company global supply chain. The thesis students were working as project managers responsible for designing and implementing an RFID pilot in the company supply chain. The thesis concludes that RFID is a powerful technology that eventually will increase supply-chain visibility. However, there are several barriers to overcome before RFID will provide the operational benefits that the company are looking for, but also a number of distinct drivers of adoption of RFID in the supply-chain. Hence, there is a need for a structured approach to monitoring the development of RFID. The authors also present a framework for strategy under uncertainty enabling the company to stay up-to-date on the RFID development. https://lup.lub.lu.se/student-papers/record/1316782/file/1316783.PDF application/pdf 996113 no 2005 eng Auto-ID Supply Chain RFID Technological sciences Teknik Technology and Engineering 1316782 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316787 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sven Morén author Jesper Samuelsson author Mats Johnsson supervisor Daniel Hellström supervisor Packaging Logistics v1000238 department Titel - Nyttan med RFID i IKEAs försörjningskedja - Ett sätt för IKEA att uppnå spårbarhet.<br /> <br /> Författare - Sven Morén<br /> <br /> Jesper Samuelsson<br /> <br /> Handledare - Mats Johnsson, Universitetslektor vid institutionen för förpackningslogistik, Lunds Tekniska Högskola.<br /> <br /> Daniel Hellström, Doktorand vid institutionen för förpackningslogistik, Lunds Tekniska Högskola.<br /> <br /> Allan Dickner, Förpackningschef inom IKEA-koncernen.<br /> <br /> Nyckelord - Spårbarhet, Märkningssystem, RadioFrekvent IDentifikation, Information.<br /> <br /> Problembakgrund - Informationsteknologin har medfört stora förändringar för dagens företag. Några av utvecklingarna inom IT är Automatic Identification and Data Collection, vilket har inneburit en avsevärd förbättring med avseende på mängden korrektöverförd data. Radio Frequency IDentification (RFID) är en teknologi inom AIDC-området som har börjat användas allt mer, vilket också IKEA uppmärksammat. IKEA är ett multinationellt företag som expanderar kraftigt samtidigt som distributionen blir allt mer komplex, vilket ställer höga krav på ett effektivt och lättöverskådligt flöde. Det förekommer idag många och tidsödande mänskliga fel vid hanteringen av gods vid distributionscentralerna, vilket till stor del beror på olika standards och rutiner för de olika sändningarna. Den bristfälliga spårningen av gods ställer till med stora problem för IKEA då företaget ej vet var deras produkter befinner sig i SC och ej heller kan fastställa varför det förekommer felleveranser. Det är inte den fysiska förflyttningen som är IKEAs problem utan att få rätt information och rätt produkter till rätt ställe samt att godset lätt ska kunna följas genom hela SC.<br /> <br /> Syfte - Införandet av ett nytt märkningssystem ställer krav på IKEAs Supply Chain, vilket kommer att innebära att förändringar blir nödvändiga. Syftet med detta arbete är därför att kartlägga vilka olika typer av vinster och krav som ett nytt märkningssystem samt spårbarhet kommer att innebära för IKEA.<br /> <br /> Metod - För att kunna lösa problemet på ett tillfredställande sätt valdes systemsynsättet då det förespråkar ett helhetsperspektiv som är viktigt vid en studie av en försörjningskedja. Angreppssättet som valdes var av kvalitativ art. Dock uteslöts aldrig ett kvantitativt angreppssätt då detta skulle inskränka på friheten i arbetet. Intervjuer har genomförts uteslutande med kvalitativ metod då detta medför en ökad förståelse för IKEA och ett bättre djup i informationsinsamlingen.<br /> <br /> II<br /> <br /> Slutsatser - Vi har i detta arbete kommit fram till tre grundläggande krav som ställs på företaget för att kunna uppnå tillfredställande spårbarhet. Dessa krav är ett märkningssystem med tillhörande utrustning, ett integrerat och utvecklat informationssystem samt en integrerad Supply Chain.<br /> <br /> Vi har dragit slutsatsen att den information som märkningen bör innehålla och som även tillgodoser IKEAs krav är ett unikt nummer för varje plastlist, avsändare, mottagare, batchnummer, consignmentnummer, shipmentnummer, vikt och stapelbarhet, betalningsvillkor, hanteringsinformation, artikelspecifik information samt var och vilken tidpunkt som godset passerat en kontrollpunkt i SC. IKEA bör använda sig av en passiv Read/Write-modell med bärfrekvensen 13,56 MHz och med en hög minneskapacitet, vilken klarar av de krav som kommer att ställas på applikationen. Denna bärfrekvens är den som mest troligt också kommer att utvecklas till en industristandard. Dock anser vi det av yttersta vikt att IKEA tillsammans med EAN, UCC och E-com logistics arbetar för att utveckla en standard. En annan faktor som spelar in är det faktum att IKEA måste finna ett lämpligt sätt att applicera märkningen på plastlisten, då detta påverkar effektiviteten av RFID.<br /> <br /> Det kommer även att krävas ett betydligt mer integrerat informationssystem för att kunna ta tillvara den information ett spårbarhetssystem kommer att innebära. Företaget bör även ha informationen både på den fysiska enhetslasten och även tillgänglig i informationssystemet eftersom involverade parter ska kunna ta del av den.<br /> <br /> Det kommer även att krävas ett närmare samarbete mellan aktörerna i försörjningskedjan då det är viktigt att kommunikationen fungerar för att spårbarheten ska bli effektiv. Utan uppdatering längs hela försörjningskedjan kommer inte spårbarheten att bli av, vilket pekar på att IKEA bör integrera sina leverantörer i sina system. Vi anser även att ett slutet flöde för plastlisten är att rekommendera då detta innebär att IKEA skulle få bättre kontroll på plastlisten.<br /> <br /> Den största fördelen som uppnås med RFID är att IKEA hela tiden vet var deras produkter finns medan den största nackdelen är initialkostnaden. Vi har kommit fram till att fördelarna överväger nackdelarna på grund av att IKEA, för att även i framtiden vara konkurrenskraftig, måste ha ett bättre informationsflöde. Dessutom anser vi att RFID ligger i tiden och förr eller senare kommer flertalet aktörer på marknaden att använda sig av teknologin. Dock ser vi problem idag att införa detta system då tekniker inom RFID går väldigt fort fram och förutsättningarna ändras snabbt. https://lup.lub.lu.se/student-papers/record/1316787/file/1316788.pdf application/pdf 4057810 no 2002 swe Spårbarhet Märkningssystem RadioFrekvent IDentifikation Information Technological sciences Teknik Technology and Engineering 1316787 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316793 2025-07-29T13:03:30Z Technology

studentPublicationsH2 David Anselmsson author Olof Borg author Ola Johansson supervisor Packaging Logistics v1000238 department För en tid sedan så bestämde sig SCA Cellplast, som producerar cellplast<br /> <br /> huvudsakligen till förpackningar, för att lägga ner en av sina tre fabriker i Sverige.<br /> <br /> Syftet med detta var att man skulle få bättre kostnadseffektivitet i sin produktion.<br /> <br /> Som en konsekvens av detta så flyttades ett antal maskiner ner till SCA Cellplasts<br /> <br /> fabrik i Värnamo, en fabrik som till följd av detta blev väldigt trång och fick en<br /> <br /> försämrad leveransprecision. Man kontaktade med anledning av problemen som<br /> <br /> uppstod institutionen för förpackningslogistik vid LTH med ett förslag på ett<br /> <br /> examensarbete för att utreda dessa.<br /> <br /> Efter att ha besökt fabriken i Värnamo och pratat med SCA Cellplasts VD Magnus<br /> <br /> Carlsson och vår handledare Ola Johansson på institutionen för förpackningslogistik<br /> <br /> vid LTH så bestämde vi oss för att genomföra en simuleringsstudie av produktionen<br /> <br /> för att kunna öka produktionsvolymen med ca femton procent.<br /> <br /> Studiens fokus ligger på att identifiera flaskhalsar i produktionen och att undersöka<br /> <br /> hur dessa kan elimineras och huruvida maskinkapaciteten kan medge den efterfrågade<br /> <br /> ökningen i produktionsvolym. Förutom detta så har vi undersökt vad som händer då<br /> <br /> man minskar ställtiderna som i dagsläget både är stora och varierar kraftigt. Om man<br /> <br /> minskar dessa och dess varians så kan man öka flexibiliteten i produktionen avsevärt<br /> <br /> och kan arbeta mera enligt den japanska produktionsfilosofin.<br /> <br /> Våra resultat tyder på att man mycket väl med bibehållen maskinpark kan uppnå en<br /> <br /> femtonprocentig ökning av produktionsvolymen. Men det krävs en del åtgärder från<br /> <br /> SCA&#39;s sida. Man måste komma till rätta med den stora varians som idag finns i<br /> <br /> produktionen och det bästa sättet att komma till rätta med det problemet är att i en<br /> <br /> högre grad dokumentera avvikelserna och förbättra rutinerna. Dessutom så bör man<br /> <br /> förbättra rutinerna vid verktygsbyten i maskinerna. På så vis kan man få ner<br /> <br /> ställtiderna. https://lup.lub.lu.se/student-papers/record/1316793/file/1316794.pdf application/pdf 868796 no 2007 swe SCA simulering produktionshöjning Technological sciences Teknik Technology and Engineering 1316793 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316798 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Lena Andersson author Annika Olsson supervisor Packaging Logistics v1000238 department Title: What drives the customer&#39;s choice of packaging and which factors influence the customer&#39;s packaging cost? ? in the automotive and manufacturing industries<br /> <br /> Author: Lena Andersson<br /> <br /> Supervisors: Annika Olsson, Division of Packaging Logistics, Lund Institute of Technology<br /> <br /> Helena Claesson, Volvo Logistics AB<br /> <br /> Problem: Which parameters are important for logistic people to think of when they are going to choose a package?<br /> <br /> Which cost factors are included in the packaging cost?<br /> <br /> What kind of added value can an emballage supplier provide their services with?<br /> <br /> Purpose: The purpose of the project was to study the parameters that drives the customer&#39;s choice of packaging and the factors that influence the total packaging cost. The study also consists of a valuation of what an emballage supplier can offer to add value to their services.<br /> <br /> Method: The study is based on interviews with people who are working at Volvo Logistics and Volvo Car Corporation. Volvo Logistics provide their customers with standard packaging material, which they own and administrate. Volvo Car Corporation is one of their customers. I started the project with a study of the reports and articles.<br /> <br /> Conclusions: During the study I recognised that the customer uses two concepts: emballage and förpackning. Emballage is a concept for pallets and boxes. Förpackning is a wider concept that consists of emballage, the packaging material inside the emballage, packaging patterns and how the package fulfils all the demands.<br /> <br /> There are a lot of parameters that drives the customers choice of packaging and these parameters are related to each other. I have created a model which purpose is to make the choice easier.<br /> <br /> During the interviews I found out that the logistic people have different understandings about the total packaging costs and which factors this cost consist of.<br /> <br /> If Volvo Logistics want to be a competitive company in the future is it very important that they understand their customers, are good at marketing and offer an added value to their services. https://lup.lub.lu.se/student-papers/record/1316798/file/1316799.pdf application/pdf 1773987 no 2003 swe Packaging transport packages´ pallets unit load packaging logistics logistics transports customer requirements added value supplier Technological sciences Teknik Technology and Engineering 1316798 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316802 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Carl Bentzel author Markus Lövgren author Ola Johansson supervisor Packaging Logistics v1000238 department Fabriken vid SCA Packaging Förpackningsservice i Värnamo har under en längre tid haft en layout som inte har varit ändamalsenlig till dess funktion. För att kunna möta ökad konkurrens och interna krav pa effektivisering behövdes en ny lösning för maskinuppställning och flödeshantering.<br /> <br /> 1 oktober 2005 inleddes examensarbetet vid SCA i Värnamo, då det hade beslutats att en limmaskin skulle flyttas in i de redan trångbodda lokalerna. Examensarbetarna fick i uppgift att, med gängse metoder, ta fram en ny layout som dels var möjlig ur ett rent praktiskt perspektiv, och dels sa effektiv att den nya maskinen kunde installeras utan att nyanställningar skulle behövas göras.<br /> <br /> 1 inledningsfasen gjordes en flödeskartläggning av produktionen vid företaget med hjälp av de produktionskort som används i tillverkningen. Denna flödesanalys låg senare till grund för hur den nya layouten utformades. Med metoden systematisk lokalplanläggning arbetades en ny maskinuppställning fram. Beslut togs även gällande placering av in och uttransporter och var mellanlagren skall vara placerade. De många begränsningar som den nuvarande fabrikslokalen besatt i form av utformning, takhöjd och väggplacering gjorde arbetet med den nya layouten långt mer komplex än vid en mer flexibel lokal.<br /> <br /> Da en ny layout ar framtagen, användes simuleringsverktyget AutoMod för att modellera och simulera den tänkta produktionen. Intervjuer och idare datainsamling genomfördes för att modellen skulle representera verkligheten så äl som möjligt. När modellen senare var verifierad och validerade kunde simuleringen ta vid,<br /> <br /> September manads produktionskort låg till grund för hur layouten skulle testas. Denna manad rekommenderades ifran produktionsledningen, och sades vara representativ för hur produktionen ser ut pa årsbasis, Simuleringen visade pa goda förutsättningar för den framtagna lavouten och att inga större störningar fanns.<br /> <br /> Slutligen gjordes en design-of-experiment där kritiska faktorer utvärderades mot varandra för att analysera vilka faktorer som paverkar genomloppstiden mest. Resultatet av experimentet visade att de mest betydande faktorerna för variationen 1 ledtid var körhastigheten i maskin 752, följt av körhastigheten i maskin 753 och maskin 73735.<br /> <br /> Det prognostiserade resultatet för examensarbetet betder en besparing på 2,1 miljoner kronor https://lup.lub.lu.se/student-papers/record/1316802/file/1837872.pdf application/pdf 1268102 no 2005 swe SLP simulering DOE Technological sciences Teknik Technology and Engineering lSRN LUTMDN/TMFL-06/S044--SE 1316802 2008-05-15T00:00:00+02:00 2011-04-05T12:51:24+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316807 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Powell author Annika Olsson supervisor Packaging Logistics v1000238 department Title AB Volvo Pentas packaging system ?<br /> <br /> process and packaging logistics<br /> <br /> Author Peter Powell, Lund&#39;s Technical College<br /> <br /> Supervisors Annika Olsson, Lund&#39;s Technical College<br /> <br /> Jan Svensson, AB Volvo Penta<br /> <br /> Problem - Packaging requirements ? Which requirements are there, how do they affect each other and how are they fulfilled?<br /> <br /> - Packaging process ? what is the line of action when developing new packaging and making adjustments in existing ones? Who has the responsibility to do what?<br /> <br /> - Packaging logistics ? How is the packaging system adapted to transport efficiency and handling?<br /> <br /> Objective To create an overall picture over how the packaging system affects and is affected by different functions and players within and beyond the company boundaries, to give a clear picture of how changes in the packaging system is made today and how it could work and finally to give suggestions for cost savings affected by the packaging system.<br /> <br /> Method The methods used for this thesis has mainly consisted of action research and at some extent case studies. As a previous employee at the department of logistics at Volvo Penta I?ve taken part of the environment, information and prerequisites that this thesis discusses on a daily basis. Case studies have been used for the collection and analysis of data concerning packaging logistics as I?ve chosen to consider only specific markets and packaging.<br /> <br /> Conclusions This thesis has highlighted the demands that are placed upon engine packaging throughout all concerned units and how these demands affect each other, positively and negatively. Packaging demands can be for example cost efficiency in transports, product protection or simplified manufacturing. A proposal for a new packaging group has been stated, where representatives from purchasing, production, logistics, shipping, insurances, third-party logistics and construction discuss packaging and the process of creating new and altering existing packaging. Finally, a few concrete proposals have been stated to highlight the potential for costs savings through increased efficiency in transports. https://lup.lub.lu.se/student-papers/record/1316807/file/1316808.pdf application/pdf 1084419 no 2008 swe Packaging transports container handling process packaging process packaging requirements packaging logistics Technological sciences Teknik Technology and Engineering 1316807 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316811 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Anna-Maja Svarén (Eriksson) author Annika Olsson supervisor Packaging Logistics v1000238 department Title:<br /> <br /> Chillchain for cut flowers ? how the distribution works.<br /> <br /> Author:<br /> <br /> Anna-Maja Svarén, student at Lund Institute of Technology, mechanical engineering.<br /> <br /> Supervisors:<br /> <br /> Annika Olsson, Department of Design Sciences.<br /> <br /> Bengt Sahlberg, Bioett AB.<br /> <br /> Problem:<br /> <br /> How does the distribution of cut flower works regarding temperature, losses, responsibility, complaints, packaging and weak points?<br /> <br /> Purpose:<br /> <br /> The purpose is to map the distribution of cut flowers, with focus on losses in the temperature, from farm to store. The goal is to identify weak points in the chillchain and to se how wrong temperatures affect the flowers. The results can be a help to secure the chillchain.<br /> <br /> Method:<br /> <br /> The work started with a problem; map the distribution of cut flowers with focus on temperature losses. Data was collected on the basis of this problem, then analysed, and finally conclusions were drawn.<br /> <br /> Conclusions:<br /> <br /> The affect handling and distribution has on a cut flower is very complex. The quality depends on everything between how it is treated before harvest to how the consumer is treating it. When a flower is wilting it is difficult to know the reason why. By increasing the control during distribution and handling it is possible to guarantee a better quality.<br /> <br /> ? The handling varies by different participants.<br /> <br /> ? There is a lack of control in the distribution. If the integration between transport companies and other participants is increased the quality can be better.<br /> <br /> ? Better measure routines for temperature and humidity are needed.<br /> <br /> ? The quality can also be better by increasing the level of knowledge in the flower industry.<br /> <br /> ? The quality can be measured whit a number of parameters, by example delivery time, vase life, transport temperature and number of complaints. These parameters should be measured continuously and not when there is a problem.<br /> <br /> ? A careful mapping of where losses arise can be a valuable help to improve the quality of cut flowers.<br /> <br /> ? The packaging used to distribute cut flowers and why it is used should be evaluated better.<br /> <br /> Increasing the communication and integration between the participants in the industry can contribute to a better distribution. https://lup.lub.lu.se/student-papers/record/1316811/file/1316812.pdf application/pdf 1305469 no 2002 swe Distribution cut flower temperature vaselife chillchain Technological sciences Teknik Technology and Engineering 1316811 2008-05-15T00:00:00+02:00 2011-08-01T11:45:05+02:00 2002-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316815 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Viktor Eriksson author Monica Towman author Annika Olsson supervisor Packaging Logistics v1000238 department Title Evaluation of secondary packages for Tetra Top on the Italian<br /> <br /> market? supportive tools for decision-making.<br /> <br /> Authors Viktor Eriksson and Monica Towman.<br /> <br /> Supervisors Annika Olsson, Department of Design Sciences, Division of<br /> <br /> Packaging Logistics, Lund Institute of Technology, Lund University.<br /> <br /> Armando Francione, Technical Director, Tetra Pak Italiana S.p.A.<br /> <br /> Problem<br /> <br /> Setting<br /> <br /> ? What requirements do the actors in the supply chain have on the<br /> <br /> secondary packages?<br /> <br /> ? What are the values and benefits of different secondary<br /> <br /> packages for the actors in the supply chain?<br /> <br /> ? What are the pros and cons of the secondary packages currently<br /> <br /> on the market in Italy?<br /> <br /> ? Is there a ?best choice? among the different secondary<br /> <br /> packages?<br /> <br /> Objective To evaluate different secondary packages at three dairies in Italy.<br /> <br /> Provide Tetra Pak and future customers with key requirements and<br /> <br /> supportive tools for decision-making regarding suitable secondary<br /> <br /> package(s) to implement together with the Tetra Top primary<br /> <br /> package.<br /> <br /> Method This master&#39;s thesis is based on a descriptive case study.<br /> <br /> Observations and interviews form the qualitative base whereas<br /> <br /> quantitative data has been collected with questionnaires.<br /> <br /> Conclusions The big variety of demands and requirements from different<br /> <br /> customers preclude the possibility of finding one universal secondary<br /> <br /> package suitable for all supply chains. Often, it is also unsuitable to<br /> <br /> use the same packaging system for different distribution channels<br /> <br /> with different properties.<br /> <br /> Three evaluation tools have been developed to facilitate choice of<br /> <br /> suitable secondary package(s) to implement according to the<br /> <br /> individual requirements from future customers.<br /> <br /> Packaging Function Analysis ? analyses values and benefits, but also<br /> <br /> failings of existing packaging systems for different actors in the<br /> <br /> supply chains.<br /> <br /> Strengths and Weaknesses Tables ? comprehensive collections of<br /> <br /> pros and cons regarding packaging systems currently on the Italian<br /> <br /> market.<br /> <br /> Conclusive Packaging Evaluation Matrix ? objectively grades a<br /> <br /> variety of key properties of different secondary packages. Can be<br /> <br /> used with two different methods of application.<br /> <br /> Other thesis conclusions:<br /> <br /> ? Activities related to the secondary packages are clearly<br /> <br /> dominated by logistical aspects on the observed market.<br /> <br /> Marketing aspects are of no great concern as secondary packages<br /> <br /> are rarely displayed to end-consumers; also, environmental<br /> <br /> aspects play a minor, but growing, role.<br /> <br /> ? It is hard to optimize a packaging solution for the whole supply<br /> <br /> chain. Reducing the complexity at one actor can increase<br /> <br /> complexity at another actor in the supply chain.<br /> <br /> ? It is not sufficient for a packaging supplier to objectively evaluate<br /> <br /> different packaging systems and expect the customer to be<br /> <br /> satisfied according to this evaluation.<br /> <br /> ? It seems like the packaging suppliers could market and inform<br /> <br /> about its distribution equipment more extensively to customers. https://lup.lub.lu.se/student-papers/record/1316815/file/1316816.pdf application/pdf 1626980 no 2004 eng Cardboard Tray Cardboard Wraparound Box Italy Packaging Scorecard Packaging System Rollcontainer Shrink Film Secondary Package Tetra Top Technological sciences Teknik Technology and Engineering 1316815 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316820 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Sofia Henstrand author Annika Olsson supervisor Packaging Logistics v1000238 department Tetra Pak Carton Ambient has developed a package called Tetra Wedge Aseptic (TWA) for their emerging segment. The package is a V-shaped package that has a straw attached to one of its front panels, which makes it ideal for the on-the-go consumption. It immediately attracted young people but unfortunately has the package not motivated their parents in the same way. Lately, several market companies have given feedback that the opening performance of the package needs to be improved since many complaints from consumers has been received.<br /> <br /> The purpose of this master thesis has therefore been to understand and define the three most common problems that children are having when they are opening and consuming a TWA 200S package. Furthermore, should these demands be translated into technical terms.<br /> <br /> To define the most common problems a qualitative observation method called usability testing will be used and it will take place in a usability lab at LTH. Usability testing is a method for establishing the ease with which products are learned and used. The underlying model for all usability tests is that real users carry out real work with a product.<br /> <br /> There were 14 children in the age of 5-10 years old who participated in the research. The children opened several packages both when they were sitting at the table and when they were standing on the floor. For making the analysis easier, each child was videotaped and asked what they thought about the opening performance.<br /> <br /> When analysing the video material the concentration lay in three areas:<br /> <br /> ? Where on the package were the children holding their hand?<br /> <br /> ? Where on the straw were the children holding their hand?<br /> <br /> ? Where did the leakage come from?<br /> <br /> These areas were chosen since they strongly affect the opening performance.<br /> <br /> When the analysis was made, it clearly showed that the three most common problems that children were having with the opening performance were:<br /> <br /> ? It was hard to perforate through the pre-punched hole.<br /> <br /> ? It was leaking from the straw hole when they tried to penetrate the straw into the package.<br /> <br /> ? It was leaking from the straw. It either poured or dripped from the straw.<br /> <br /> To prevent these problems that the children were having, investigations regarding a new straw solution and the under filling volume needs to be done. https://lup.lub.lu.se/student-papers/record/1316820/file/1316821.pdf application/pdf 930693 no 2007 eng qualitative research children?s opening performance TWA 200S Technological sciences Teknik Technology and Engineering 1316820 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316824 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Tommy Örjas author Anders Severius author Daniel Hellström supervisor Mats Johnsson supervisor Christina Skjöldebrand supervisor Packaging Logistics v1000238 department Problembakgrund ? EU har infört en ny livsmedelslag, nr 178/2002 av den 28 januari 2002 som kräver spårbarhet på livsmedel och foder. Problemet är att upprätthålla en bra spårbarhet genom de olika leden i livsmedelskedjan. Vår uppgift är att undersöka vilka krav lagen om spårbarhet ställer och hur bra spårbarheten är idag i livsmedelskedjan. Vi vill också ta reda på myndigheternas syn på spårbarhet och vad som krävs med avseende på logistik, märkning och förpackningsteknik för att inte spårbarheten skall gå förlorad.<br /> <br /> Syfte ? Vårt syfte med rapporten är att skaffa en övergripande syn på vad som krävs för att behålla spårbarheten genom den svenska livsmedelskedjan. Vi vill därför ta reda på hur förpackningen skall märkas, hur informationen skall vidarebefordras och vilka olika inre och yttre faktorer som påverkar logistikkedjan. Om märkningen skall koncentreras på primär- eller sekundär-förpackningarna, eller vilken märkningsmetod som skall användas, samt vilka olika märkmetoder som är intressanta. Vår målsättning sträcker också sig till vilka ekonomiska faktorer som påverkas av spårbarhet.<br /> <br /> Metod ? Vårt synsätt på den svenska livsmedelskedjan har medfört att vårt arbete har blivit en fallstudie. För att fullfölja vårt arbete tillfredsställande valde vi att arbeta med systemteorin, detta passar in på vårt problem med att se helheten i livsmedelskedjan och de faktorer som påverkar denna. De intervjuer vi gjort har byggts på kvalitativa ansatser, eftersom vi i förväg inte direkt visste vilka svar vi var ute efter. Vi var också tvungna att tolka de intervjuer som har genomförts vilket, medförde att vi kom in på hermeneutiken. Det hermeneutikiska synsättet är av subjektiv art och det kan därför vara svårt att hålla sig objektiv i alla lägen i detta arbete.<br /> <br /> Slutsatser ? För att få spårbarhet, måste vi först och främst kunna identifiera produkten. För detta krävs märkning med ett batchnummer. Vi anser att ett bäst före datum innehåller för lite information för att få spårbarhet. När det gäller livsmedel, så kanske det inte finns ekonomiskt utrymme för spårbarhet på konsumentförpackningsnivå, därför måste det bli på batchnivå.<br /> <br /> Livsmedelskedjan har enligt oss goda möjligheter till spårbarhet framåt och bakåt. Vi tycker inte att EU-lagen som träder i kraft första januari 2005 ställer några orimliga krav på leden i kedjan. Lagen är i dagsläget relativt öppen och det finns ytterst få konkreta bestämmelser på hur god spårbarhet skall uppnås. De nya lagkraven skapar en påtvingad ökad spårbarhet genom hela livsmedelskedjan. Hur det kommer att påverka kedjan är svårt att säga, men troligtvis kan det för små företag både vara ekonomiskt svårt samt tidskrävande att upprätthålla lagen.<br /> <br /> En ökad spårbarhet genom kedjan kan bära med sig många positiva effekter. Bl.a. ökas möjligheterna att lokalisera fel om, när och varför dessa uppstår. Detta kan medföra minimering av återkallning och därmed en mindre ekonomisk kostnad. Samtidigt kan det också vara bra för ett företag, att lättare kunna se sina svaga punkter inom sin del i livsmedelskedjan. Vet man vad som gått fel i exempelvis produktionen, kanske man kan undvika detta i framtiden i form av förebyggande åtgärder. Dessa åtgärder stärker företagens varumärken och skyddar dessa mot badwill.<br /> <br /> Många företag har redan så god spårbarhet att inga ytterligare åtgärder behövs för uppnå lagkraven. Några företag kan få svårt att anpassa sig eftersom lagen ställer i viss utsträckning krav på att investera i utrustning, system, märkning osv. Inget företag dock har visat något större intresse av att byta datasystem, eller skaffa sig ett p.g.a. lagen om spårbarhet.<br /> <br /> Vår uppfattning är att grossistledet har en stark ställning mot övriga delar i kedjan. Själva påstår de att konkurrensen är mycket hård, men detta är kanske inte helt sant då det endast finns fyra stora svenska grossistföretag inom dagligvaruhandeln idag. Vår uppfattning är att de största problemen vid spårbarhet är hos just grossistledet, eftersom de flesta dagligvaror går genom detta. Här bryts enhetslaster och sprids sedan vidare. Därför är det mycket viktigt att rätt information om produkten finns när den kommer in i deras system, samt att rätt information lagras när produkten lämnar grossistföretaget. Märkning av förpackningar har därför en mycket stor betydelse. Oavsett hur bra produkterna märks tidigare i ledet, måste även grossistledet (och tredjepartslogistikerna) ha kontroll över var produkterna tar vägen, annars tappas spårbarheten. Idag rekommenderar dagligvaruhandeln att märka alla ytterförpackningar med EAN128, eftersom denna märkning är en mycket bra standard och har många fördelaktiga egenskaper (se kap. 5.5). Grossistledet är i ett skede att implementera system för att kunna hantera det ökade informationsflödet i samband med övergång till EAN128. Det finns vissa tveksamheter då vissa producenter inte gärna vill märka med EAN128 förrän man vet att resten av kedjan implementerat system för att kunna läsa informationen. Detta blir lite av ett moment 22 då grossistledet inte heller vill investera i dyr utrustning förrän alla ytterförpackningar märks med EAN128. När detta har skett fullt ut har man kommit en bra bit på vägen mot god spårbarhet och kan därmed förebygga massåterkallning och förhoppningsvis minimera framtida livsmedelsskandaler. Viktigt att poängtera är att utan förebyggande åtgärder, är det svårt att stoppa misstag och skandaler. Genom att införa ett koncept på spårbarhet blir detta en förebyggande åtgärd och ett verktyg för att finna anledningen till varför något gick snett.<br /> <br /> Andra märkmetoder som vi tittat närmare på såsom RFID-taggar och 2D-koder har en del fördelar men p.g.a. EAN128-kodens starka ställning för tillfället är det också den som är lösningen i dagsläget. RFID kommer antagligen på sikt att både komplettera och ev. ersätta den vanliga streckkoden. En viktig del i det hela är att branschen i så stor mån som möjligt använder samma sorts system vid märkning. Detta för att kunna spåra genom hela kedjan, både framåt och bakåt.<br /> <br /> Hur noggrann spårbarhet lagen kräver av livsmedelskedjan är inte ingående specificerat. En hög spårbarhet skapar stora kostnader och en dålig spårbarhet medför att man förlorar stora delar av spårbarheten. Därför är det mycket viktigt att företagen lägger sig på rätt nivå. Som nämnts tidigare verkar märkning på ytterförpackning uppnå en tillräckligt god spårbarhet som uppfyller lagkraven. Naturligtvis hoppas företagen på att en förbättrad spårbarhet kan medföra synergieffekter i form av ekonomiska besparingar. Vi tror att det finns möjlighet att uppnå dessa förhoppningar med bra planering och välgenomtänkta utbyggnader av både system och märkning. Visar det sig att en ökad spårbarhet bara medför en ökad kostnad, kommer detta i slutändan innebära att slutkunden får betala de ökade kostnaderna.<br /> <br /> Spårbarhet är mer än bara märkning. För att få god spårbarhet krävs samtidigt ett helt koncept. Utöver märkning krävs även kvalitetssäkring och gemensamma standarder. Ett kvalitetssäkringssystem är också av stor betydelse när problem uppstår och man kan i efterhand lättare följa upp problemen för att förhoppningsvis förbättra sin del i kedjan.<br /> <br /> En global lösning på spårbarhetsproblemet hade varit det absolut bästa alternativet, men att åstadkomma detta i dagsläget är enormt svårt. Centrala databaser där information om produktion, transporter o.s.v. finns lagrade hade varit en bra lösning, men att samordna detta kräver stora resurser. Samtidigt att enas om ett gemensamt sätt att märka på, skulle lösa en del av problemen på vägen mot god spårbarhet. https://lup.lub.lu.se/student-papers/record/1316824/file/1316825.pdf application/pdf 990174 no 2003 swe Spårbarhet logistik märkning identifiering förpackning information. Technological sciences Teknik Technology and Engineering 1316824 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316831 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Peter Gurenius author Johanna Wicander author Ola Johansson supervisor Packaging Logistics v1000238 department Title: ?Vendor Managed Inventory (VMI) ? An analysis of how<br /> <br /> Microsoft could implement VMI functionality in the ERP<br /> <br /> system Microsoft Dynamics AX.?<br /> <br /> Authors: Peter Gurenius<br /> <br /> Johanna Wicander<br /> <br /> Supervisors: Ola Johansson, Department of Packaging Logistics, Lund<br /> <br /> University<br /> <br /> Per Lykke Lynnerup, Microsoft Development Center,<br /> <br /> Copenhagen<br /> <br /> Background issues:<br /> <br /> VMI is being increasingly implemented in companies and therefore Microsoft<br /> <br /> wants to have this functionality in the ERP system Microsoft Dynamics AX.<br /> <br /> Today, in version 4.0 of AX, there is no VMI functionality and customers<br /> <br /> have to buy add on VMI solutions from Microsoft&#39;s partners. However, these<br /> <br /> solutions are customer specific and do not lead to competitiveness for<br /> <br /> Microsoft in the long run. Microsoft wants to have generic VMI functionality<br /> <br /> build into AX, why Microsoft has started a large project for implementing<br /> <br /> advanced trading functionality in AX, including VMI.<br /> <br /> Purpose:<br /> <br /> The purpose of this master&#39;s thesis is to ?investigate how Microsoft could<br /> <br /> implement VMI functionality in Microsoft Dynamics AX?. To achieve this,<br /> <br /> three research questions will be answered regarding purposes of starting VMI<br /> <br /> relationships, information needed in VMI collaborations and communication<br /> <br /> methods.<br /> <br /> Method:<br /> <br /> Since little prior research is done on VMI implementations into ERP systems<br /> <br /> the authors have conducted benchmarking case studies at six companies, both<br /> <br /> suppliers and customers working with different VMI solutions. The<br /> <br /> conclusions and recommendations are to a large extent based on the findings<br /> <br /> from the case studies.<br /> <br /> Conclusions:<br /> <br /> In summary, the case companies have reported overall positive results after<br /> <br /> implementing VMI and want to develop the collaborations further. The<br /> <br /> findings from the study indicate that more or less the same information is<br /> <br /> VI<br /> <br /> needed irrespective of how the information is sent. However, differences in<br /> <br /> how the information is sent are found.<br /> <br /> Recommendations to Microsoft:<br /> <br /> The authors believe after having conducted literature and case studies that it is<br /> <br /> necessary for Microsoft to have VMI functionality in AX to be able to<br /> <br /> compete successfully in the future. The authors present a generic solution for<br /> <br /> VMI in AX, in which configurations can be made easily to suit different<br /> <br /> methods of communication. https://lup.lub.lu.se/student-papers/record/1316831/file/1316832.pdf application/pdf 715251 no 2007 eng VMI ERP Microsoft Dynamics AX supply chain collaboration information sharing Technological sciences Teknik Technology and Engineering 1316831 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316836 2025-07-29T13:03:30Z Technology

studentPublicationsH2 André Jonsson author Björn Mathiasen author Daniel Hellström supervisor Mazen Saghir supervisor Packaging Logistics v1000238 department Title: Consequences of the implementation of the Loading Ledge<br /> <br /> Authors: André Jonsson and Björn Mathiasen.<br /> <br /> Supervisors: Daniel Hellström - Division of Packaging Logistics, LTH.<br /> <br /> Mazen Saghir - Division of Packaging Logistics, LTH.<br /> <br /> Rickard Andersson - IKEA.<br /> <br /> Peter Larsson ? IKEA.<br /> <br /> Tobias Rasmusson ? IKEA.<br /> <br /> Objective: To write a descriptive and evaluative master thesis about the consequences of the implementation of the Loading Ledge on logistical processes at the Distribution Centre in Älmhult and at the IKEA Stores.<br /> <br /> Problem: What are the strengths, weaknesses, threats and opportunities with the Loading Ledge from today&#39;s point of view?<br /> <br /> What adjustments have to be made to the logistical system at Distribution Centers and IKEA Stores in order to handle the Loading Ledge as efficient as possible during the entire implementation phase?<br /> <br /> Method: The research is performed as a case study where the study is mainly based on interviews with people who are working at IKEA. We have interviewed individuals that are key informants at the Distribution Centers and the IKEA Stores as well as responsible for the development of the Loading Ledge and the logistical processes.<br /> <br /> Conclusions: In this master thesis we have made a descriptive and evaluative analysis of the consequences of the implementation of Loading Ledge.<br /> <br /> The strength with the Loading Ledge is that it adapts and becomes a part of the packaging solution, not like the wooden pallet, which dictates the dimensions of the unit load. Another advantage is that is can be shipped all over the world throughout IKEAs global distribution chain.<br /> <br /> We have found that the Loading Ledge has the potential to increase the overall supply chain efficiency. This is accomplished by higher filling rate in transport and more efficient handling at all participants of the supply chain.<br /> <br /> The Loading Ledge has the possibility to replace the wooden pallet in the IKEA supply chain but the Loading Ledge puts new demand on the supply chain, which needs to be tackled. Within a few years IKEA needs to introduce a specialized platform that initially replaces the wooden pallet. To achieve higher efficiency the flow of information and knowledge is a central issue as well as proper handling equipment and Loading Ledge adapted packaging solution. All these aspects affect the logistical systems at the IKEA DC and Store<br /> <br /> In the long run the whole logistical and packaging system needs to be adapted fully to the Loading Ledge to reap from the advantages of the Loading Ledge. https://lup.lub.lu.se/student-papers/record/1316836/file/1316837.doc application/msword 7914496 no 2004 eng Unit load packaging logistics logistics supply chain wooden pallet material handling new unit load concept Technological sciences Teknik Technology and Engineering 1316836 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2004-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316842 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Fredrik Juhlin author Albin Karlsson author Annika Olsson supervisor Packaging Logistics v1000238 department Duni AB is a leading provider of premium solutions and products, e.g. napkins, plates, table covers, candles and food solutions. The company has recently made major organizational changes, i.e. going from a decentralized organization to a centralized organization with all product development in Malmö. There is a lot of work to be done to optimize both product and packaging development in order to reduce logistics costs and enhance production efficiency. The filling rate among the napkin packages is at present low and the fact that the company has no process for introducing new packages for napkins, has caused a large number of different box sizes. The problem of finding appropriate packages for napkins is complex, since many factors affect the packaging size and design. The lack of standardization of the boxes causes consequences during transports, handling, production and purchasing. At present Duni have no process for introducing new boxes. For this reason, the purpose of the Master thesis was to develop a process to maintain a limitation of boxes and develop standardized boxes.<br /> <br /> During the Master thesis a systems approach has been used and information has been gathered through interviews, database searching, literature studies, simulations in software for pallet utalization and a visit at Duni`s plant in Bramsche, Germany.<br /> <br /> In the Master thesis a box management tool have been developed. The tool helps to examine if existing boxes can be used for new products and illustrates how adjustment in the number of packages per box affects the choice of an appropriate box. An inventory of Duni&#39;s existing packaging solutions (primary and secondary packaging) has been done and simulations have been carried out for each primary package, trying to find the most appropriate packaging solution, concerning filling rate.<br /> <br /> Duni have got an enhanced awareness of the packaging potential, as a way to increase sales and reduce cost associated with production and handling. The packaging function at Duni is nowadays involved at an early phase of the product development and there is still much work to be done, trying to reduce the amount of boxes and increase the filling rate of the boxes. By using the box management tool it is possible for Duni to take a further step in the process of making suitable packages for napkins. https://lup.lub.lu.se/student-papers/record/1316842/file/1316843.pdf application/pdf 3678546 no 2007 eng duni packaging filling rate Technological sciences Teknik Technology and Engineering 1316842 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316847 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Charles-Edouard Moreau author Daniel Hellström supervisor Packaging Logistics v1000238 department The Radio Frequency Identification (RFID) is quite a vast subject. It is used for so many different applications. The most developed area of research has first been to track animals. Nowadays, many pets have a chip hidden in their neck that permits to identify them very specifically as the information in the chip is unique.<br /> <br /> Some researches have then been oriented on the supply chain area. Unfortunately, as the technology is quite new, a lot of issues have not been solved yet.<br /> <br /> The purpose of this Master Thesis is to gather, to sort out and to clarify the more information on RFID technology as possible. Following this objective, the Master Thesis is articulated in three main parts.<br /> <br /> First, data transmission is explained so that the basis of the technology would be understood and this would also clarify some problems encountered later in the report. Then, the technology itself is described. As you will read, the principle looks pretty simple at first sight but then when going deeper in the working of it, you will see that it is not. While presenting the variety of different systems that coexist on the market, the problem faced by the enterprises to chose the best suitable one would become obvious. The thesis helps clarifying all of that. Finally the application of the technology in the supply chain, with its advantages and limitations is presented.<br /> <br /> I hope the knowledge put into this Master Thesis would clarify the world of the Radio Frequency Identification. https://lup.lub.lu.se/student-papers/record/1316847/file/1316848.pdf application/pdf 1605327 no 2003 eng Technological sciences Frequency RFID Supply Chain Teknik Technology and Engineering 1316847 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2003-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316850 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Henrik Ljunglöf author David Skogh author Ola Johansson supervisor Packaging Logistics v1000238 department Microsoft Dynamics AX (AX) is an Enterprise Resource Planning (ERP) system, and like<br /> <br /> ERP systems in general, it supports the lean production philosophy only to a limited extent.<br /> <br /> One way to provide a better support for lean production would be a feature for value stream<br /> <br /> mapping with AX as data source.<br /> <br /> The purpose of this study was to examine if plant level current state value stream maps could<br /> <br /> be created with an existing software using AX as data source. The relevance of such maps in<br /> <br /> order to gain a realistic representation of the value stream has also been evaluated.<br /> <br /> In order to fulfil the purpose, a comprehensive literature study has been conducted. From<br /> <br /> established theories, the information needed for mapping of a value stream has been<br /> <br /> identified. Next it has been investigated to what extent this information is available in AX,<br /> <br /> and how it can be visualized. Finally it is investigated how relevant this visualization is for<br /> <br /> realistically describing the actual value stream. A number of additional value stream mapping<br /> <br /> tools are also examined, in relation to the existing data in AX.<br /> <br /> It is concluded that plant level current state value stream maps can be created with data from<br /> <br /> AX and that this method of producing value stream maps has some advantages in relation to<br /> <br /> the conventional method: A time saving potential, clearness, and a single source of data.<br /> <br /> Disadvantages are also identified, including: Risk for lack of specific data, approximations of<br /> <br /> data, reliance on user input and frequent updating.<br /> <br /> It is also concluded that this method of value stream mapping is limited in relation to the lean<br /> <br /> principles, mainly due to two facts: Strategic product families can not be identified, and AX<br /> <br /> does not support the way production is controlled in a lean production environment. Therefore<br /> <br /> further research is suggested, before a feature for value stream mapping is implemented. https://lup.lub.lu.se/student-papers/record/1316850/file/1316851.pdf application/pdf 1267575 no 2007 eng Microsoft Dynamics AX value stream mapping lean production Technological sciences Teknik Technology and Engineering 1316850 2008-05-15T00:00:00+02:00 2010-02-01T14:40:03+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1316917 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Thomas Sunhede author Lars Larm supervisor Japanese Studies v1000130 department Between the years 1998 and 2008 four contenders battled for the home video game industry&#39;s 6th generation. First out were SEGA with their Dreamcast, followed by Sony&#39;s PlayStation 2, Nintendo&#39;s GameCube and Microsoft&#39;s Xbox. Pretty soon the PlayStation 2 executed their first opponent from SEGA and after that it was practically a solo race. What did Sony do to control two thirds of the home video console market&#39; And what did the others do wrong? https://lup.lub.lu.se/student-papers/record/1316917/file/1316918.pdf application/pdf 1048301 no 2008 eng video game wars sixth generation of video games Microsoft Xbox Nintendo GameCube SEGA Dreamcast Sony PlayStation 2 Teknik Technological sciences Technology and Engineering 1316917 2008-05-13T00:00:00+02:00 2009-03-26T15:11:48+01:00 2008-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1317038 2025-07-29T13:03:30Z Technology

studentPublicationsH2 María Mira author Borja Muñoz author - supervisor Packaging Logistics v1000238 department The success of a company increasingly depends on the efficiency and effectiveness on its activities along the product life cycle. In the effort of optimizing its activities, companies must integrate themselves. Due to the significance packaging has within many of these activities, it is of utmost importance to integrate product and packaging development activities in order to optimize processes.<br /> <br /> It was shown in previous studies the interest that companies have on putting into practice such integration. Nevertheless, it is not clear either the possible benefits resulting from the implementation of product and packaging integration at an operational level or the appropriate manner to carry out such implementation.<br /> <br /> Through a multiple case study, several products within mechanical actual industry and which show, at some extent, product and packaging integration, are analyzed. By means of the product cases? analysis, the purpose of this study is to evaluate the advantages that companies gain by changing present activities to the suggested concept. The integration performed by the companies studied will be analyzed and connected to the development procedure model proposed by Bramkiev et al (2005).<br /> <br /> From the contributing companies? results, this study concludes that integration performance involves noticeable improvements along product life cycle processes. In particular, the distribution costs and the quality of processes in general, are the most benefited aspects by packaging integration. The results emphasize the importance of packaging in logistical activities considering help-in-distribution as maybe the most important characteristic of packaging. It is believed that taking into account earlier in the development process, packaging and other activities requirements, guarantees a more efficient product development reducing the risk of failure and consequent need of redesign.<br /> <br /> Development procedure models are declared very important tools for the companies in order to facilitate the work and organize activities. All the product development procedures for every case and company have similar structures to each other because even when things are called different the idea is the same. However, packaging development processes do not match that much to a generic model. Packaging integration has shown to be performed in a wide variety of approaches but always resulting on benefits for the companies.<br /> <br /> The results of the study show a clear support to the model proposed by Bramklev et al (2005); the higher the integration is performed, the higher the benefits are obtained. https://lup.lub.lu.se/student-papers/record/1317038/file/1887888.pdf application/pdf 53645466 no 2005 eng Teknik Technological sciences packaging product and packaging integration product life-cycle Technology and Engineering 1317038 2008-05-30T00:00:00+02:00 2011-04-05T11:36:28+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1317046 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Elisabeth Häggman author Anders Ranbro author Dr Mats Johnsson supervisor Packaging Logistics v1000238 department Title Paper towel dispenser for high traffic washrooms<br /> <br /> Key words Dispenser, SCA, paper towel, high traffic washrooms.<br /> <br /> Authors Elisabeth Häggman<br /> <br /> Anders Ranbro<br /> <br /> Supervisor Björn Larsson, SCA Hygiene Products AB Göteborg<br /> <br /> Examiner Mats Johnsson, LTH, Department of Design Sciences<br /> <br /> Packaging Logistics<br /> <br /> Problem What would be the optimal size of a paper towel dispenser for high traffic washrooms? How can competitors? paper be excluded from being refilled into SCA dispensers?<br /> <br /> Purpose By performing a thesis study we intend to investigate what changes has to be made to the dispenser for paper towels, to make the handling process easier for cleaning personnel, and also what profits this new product would bring customers of SCA, and thereby strengthen SCA&#39;s position on the market.<br /> <br /> Method In this thesis different field studies of the flow in high traffic washrooms have been made. We used methods such as semi structured interviews, observations and literature studies to get the information we needed to write this thesis.<br /> <br /> In order to receive an understanding for the research field, we have combined literature studies with information searches on the Internet.<br /> <br /> Conclusions The developed dispenser both makes the paper proprietary to the dispenser and reduces the refilling frequency remarkable. The dispenser holds 2000 towels and only needs to be refilled once a day, if two dispensers are used in a washroom with 1600 visitors per day. https://lup.lub.lu.se/student-papers/record/1317046/file/1887877.pdf application/pdf 3744812 no 2005 eng paper towel dispenser high traffic washrooms Technological sciences Teknik Technology and Engineering 1317046 2008-05-30T00:00:00+02:00 2011-04-05T11:30:32+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1317059 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Jakob Frey-Skött author Annika Olsson supervisor Packaging Logistics v1000238 department Title Reference tool for perceived quality ? within the Sony Ericsson Product Business Unit Accessories Organization.<br /> <br /> Author Jakob Frey-Skött<br /> <br /> Supervisors Annika Olsson, Department of Design Sciences, Division of Packaging<br /> <br /> Logistics, Lund Institute of Technology, Lund University.<br /> <br /> Gunilla Wejfeldt, Head of Quality Assurance, Sony Ericsson Product<br /> <br /> Business Unit Accessories Organization.<br /> <br /> Problem ? what perceived quality requirements do the consumers using Setting Sony Ericsson Bluetooth TM accessories have on the equipment?<br /> <br /> ? How can these requirements be implemented and validated in an easy way so that a common understanding for user needs and perceived quality can be achieved?<br /> <br /> Objective To find and define the perceived quality requirements expressed by consumers using Sony Ericsson&#39;s Bluetooth TM headset accessories.<br /> <br /> To define a tool and supportive methods for a common understanding of the perceived quality requirements expressed by consumers using Sony Ericsson&#39;s Bluetooth TM accessories.<br /> <br /> Method This master thesis was based on a descriptive case study together with focus groups and in-depth interviews. The focus groups and in-depth interview formed the qualitative base for the master thesis.<br /> <br /> Conclusions Perceived quality can be defined as the consumer&#39;s judgment about a product&#39;s overall excellence, and perceived quality has been found to have a dominant role on consumer satisfaction. The focus groups and in-depth interviews showed that the following nine factors were suitable for describing the perceived quality of PBU accessories Bluetooth TM headsets used in this study:<br /> <br /> ? Design<br /> <br /> Sound<br /> <br /> ? Wearability<br /> <br /> ? Chargeability<br /> <br /> Functionality<br /> <br /> Usability<br /> <br /> Compatibility<br /> <br /> Comfort and Ergonomics<br /> <br /> Convenience<br /> <br /> The quality factor ?Price? was defined in this study but was found to be more of a trigger for the expectation of overall quality of a product. A high price indicated expectations of high quality and vice versa. In that sense it is not a perceived quality factor in itself but rather an expectation of what quality level the product has.<br /> <br /> This master thesis has also presented a methodology for how perceived quality factors can be elicited and implemented in a tool called Quality Reference Matrix. The Quality Reference Matrix is based on the perceived quality factors found in the qualitative study conducted in this master thesis. The Quality Reference Matrix has been developed by combining a concept screening matrix with the Kano theory of attractive quality. An open metric methodology has been used in the tool in order to be able to measure the target levels for the different perceived quality factors. The recommended methodology for eliciting perceived quality requirements and implement them in the Quality Reference Matrix, is built up of three steps:<br /> <br /> Step1: Identify Quality Attributes.<br /> <br /> Step2: Identify the quality attributes Kano characteristics<br /> <br /> Step 3: Put together the different elements in the QRMand set the perceived quality target levels https://lup.lub.lu.se/student-papers/record/1317059/file/1317060.pdf application/pdf 832659 no 2007 eng Attractive quality, concept development, focus group, in-depth interview, Kano, open metric , perceived quality, product development, product quality, quality requirements, Sony Ericsson, user needs, Voice Of the Customer. Technological sciences Teknik Technology and Engineering 1317059 2008-05-30T00:00:00+02:00 2010-02-01T14:40:03+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1317068 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Helena Lindh author Märit Beckeman supervisor Packaging Logistics v1000238 department Biopolymers are interesting materials from a sustainable point of view. Especially since consumers increasingly demand environmental friendly packages as well as more convenient packages with easy open and close features on the packages. The demands for convenient packages lead to more and more plastics in the packaging industry.<br /> <br /> The purpose with this project is to find out typical properties of the biopolymer, polyhydroxyalkanoate (PHA) and to evaluate chemical, mechanical and barrier functions of the polymer PHA. The purpose is also to indicate if this polymer is useful in different Tetra Pak applications and define possibilities and restrictions leading to a final recommendation of what application the polymer is useful for. The main focus when it comes to Tetra Pak applications is on Tetra Brik Aseptic (TBA) and caps for the TBA. Tetra Recart (TRC) was also included in the project.<br /> <br /> The scientific attitude used in this thesis is a system theory, both qualitative and quantitative research approaches have been used. The thesis is based on literature studies, interviews, pilot study and laboratory evaluation. The material is then analysed with the SWOT (Strengths, Weaknesses, Opportunities and Threats) method.<br /> <br /> Poly-hydroxi-alkanoates is a family of bio-based polyesters that serve as a energy reserve and is produced by fermentation of carbon substrate within the micro-organisms. PHAs are fully biodegradable in both aerobic and anaerobic conditions. Three different suppliers, Metabolix, BioMatera and Nodax, of PHA were invited to take part in this evaluation of PHA by Tetra Pak. Nodax was not able to deliver any material and thereby were excluded from further investigation in this thesis,<br /> <br /> The pilot production including injection moulding and extrusion coating shows that the PHA requires changes in the process, in order to be used. A big difference between the PHA and the materials used today is the slow crystallization that is possible to speed up by using warm tools when injection moulding and a warm chilly rolls when extruding.<br /> <br /> The laboratory testing of the material properties indicates that most of the tested properties of the PHA both from Metabolix and from BioMatera are in need of improvement to match the materials used today and to measure up to the demands. In the laboratory testing of recycling properties the PHA extruded on carton did pulp readily and no flakes of fibres could visibly be noticed. The breakdown of the polymers into smaller pieces indicates that the polymers are more brittle than LDPE, which could be an issue in the recycling of paper.<br /> <br /> The conclusion of this thesis is that the Poly-hydroxi-alkanoates possess good and needed properties compared to other biopolymers. But there are still properties needed to be improved and they are not as easy to process as the materials used today. The tested PHAs are all in need of improvement to be able to use in the laminar packaging materials for TBA, TRC or in a cap.<br /> <br /> The recommended next step is to contact the potential suppliers in order to discuss the result of the laboratory testing and the possibilities to make improvements. If the discussion is successful and new and improved grades are processed , I suggest further testing of the material. If it does not result in a new modified PHA grade I suggest further research for potential suppliers. https://lup.lub.lu.se/student-papers/record/1317068/file/1887391.pdf application/pdf 1018132 no 2005 eng bio polmer Poly-hydroxi-alkanoates Technological sciences Teknik Technology and Engineering 1317068 2008-05-30T00:00:00+02:00 2011-04-04T13:44:48+02:00 2005-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1317072 2025-07-29T13:03:30Z Technology

studentPublicationsH2 Fredrik Orremo author Claes Wallin author Gunilla Jönson supervisor Packaging Logistics v1000238 department Shopping for groceries often means that, as consumers, we travel to the grocery store ourselves, by ear, bike or on foot. At the store we pick out the groceries that we want, go the register and pay for them. During the last couple of years consumers in Sweden have been given the opportunity to let someone else select and transport the groceries to their home instead, so called home shopping. As this report is being written, the possibility to buy groceries this way is somewhat limited, but many forecasters believe that in the near future it will increase immensely. Because of the large volumes of groceries that are being transported, there is great transport work being done in the supply chain. The consumers? use of energy for transportation of the groceries is approximately the same amount of energy that the domestic transports of groceries generate by truck, train and boat, The change will not only be immense for the consumer and the actors involved in grocery shopping; it will significantly change the way groceries are transported to the consumer. The questions that this report will illuminate are what these changes will mean for the environment and what the changes in energy consumption and emissions will be. The study does not deal with the changes of the structure of grocery shops due to home shopping.<br /> <br /> The aim of this report is to analyze what the consequences for the environment will be if 10, 25 or 50 percent of the total turnover of groceries in Sweden is done through home shopping. The analyses of the environmental consequences are limited to calculations for the transports between the order assembly unit (OAU) and the home of the consumer, along with a discussion of the differences in the remaining parts of the supply chain caused by home shopping.<br /> <br /> The first step is a description of today&#39;s grocery supply chain and an analysis of the actors on the Swedish grocery market. The latter analyses are being done because grocery shopping in Sweden is very dependent on the big actors ICA, KF and D&amp;D. In connection with this the structure of grocery shops in Sweden will be outlined. The already existing home shopping of groceries in Sweden will be described to provide a background to the analyses and show how home delivery of groceries is being conducted today.<br /> <br /> With the description of today&#39;s grocery supply chain as starting point, factors that influence the appearance of the OAU and how home delivery is performed were identified. The factors that were seen as especially important were the size of the delivery area, the share of home shopping and the population density within the delivery area. These factors also determine the extent of the environmental consequences. The analysis is subsequently done in two steps. The first is to outline probable logistical models for distribution of the groceries to the consumer&#39;s home. This is done to ensure that the calculation of the environmental consequences will be made on logistically functional systems. The second step is to apply these models to different shares of home shopping and to areas with differing population density, which is a presentation of probable scenarios at 10, 25 and 50 percent home shopping and calculations of the resulting environmental consequences.<br /> <br /> Graph 1: Energy consumption for Model.<br /> <br /> The horizontal line at approximately 3.1 TWII is the energy consumption when all of the groceries are transported throw the traditional supply chain, when the consumers themselves travel to the grocery store. The other three lines show the energy consumption when 10, 25 or 50 percent of the groceries are acquired through home shopping depending on the length of the route that the delivery van travels, The length of the delivery route varies depending on the area in which the deliveries take place. A typical route length is between 50 to 90 km, the area marked in the graph. When the delivery route exceeds 185 km the energy consumption for the delivery van will be greater then that of traditional shopping. This means that the energy consumption decreases if the delivery route is shorter than 185 km. In Chart 1 below the decrease in energy consumption at 10, 25 and 50 percent home shopping can be seen in reference to traditional shopping when the delivery route is either 50 or 90 km. Graph 1 and Chart 1 are calculated under the conditions that the average shopping amount is 3.5 times greater than with traditional shopping and that the delivery van can hold 25 orders per route.<br /> <br /> Chart 1: Change in energy consumption with home shopping<br /> <br /> A sensitivity analysis is subsequently made for the delivery models to show variables that are critical for the environmental impact when using home shopping. The sensitivity analysis shows how the environmental consequences are dependent on a set of factors, amongst them the share of home shopping and the delivery area, which are important.<br /> <br /> The results imply that under the right conditions, in densely populated areas, where the delivery vans? full capacity can be used and a sensible plan of the routes can be created, there are environmental savings to be achieved with home shopping.<br /> <br /> Even though the distance travelled by the delivery van is rather long, the energy consumption decreases. At 10 percent home shopping the decrease in energy consumption is between 5 and 7 percent depending on the length of the delivery route. At 25 and 50 percent the energy density is high, and it is in these areas where home shopping is likely to take place, environmental benefits will come as a result of increasing home shopping. https://lup.lub.lu.se/student-papers/record/1317072/file/1317073.pdf application/pdf 397870 no 1999 swe IT mat miljö Technological sciences Teknik Technology and Engineering 1317072 2008-05-30T00:00:00+02:00 2010-02-01T14:40:03+01:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324544 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Diana Homsi-Gunnarsson author Rolf Björkman supervisor Electrotechnology with automation (BSc) LURS00006 department Störnings indikation på lågspänningsnät. Detta examensarbete har kommit till som ett resultat av företaget Öresundskrafts arbete med att installera ny teknik för datatransmission över elnätet. Uppgiften var att indikera störningar mellan 5-95 kHz på 400 V nätet med hjälp av en applikation för förenklad insamling och loggning av mätvärden baserad på ett oscilloskop kopplat till en dator via GPIBprotokollet och programmet LabVIEW. https://lup.lub.lu.se/student-papers/record/1324544/file/1324545.pdf application/pdf 2807345 no 2006 swe Störningsindikation datatransmission signalbehandling mätteknik Technological sciences Teknik Technology and Engineering 1324544 2007-04-17T00:00:00+02:00 2011-02-22T16:46:11+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324552 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Olof Wingren author Lise Jensen supervisor Computer Science and Engineering (BSc) LUR000047 department Denna examensrapport redogör för en utvecklingsprocess av en webbasserad släktforskningsapplikation, där resultat från släktforskning kan delas av flera aktiva släktforskare. Genom att grundligt undersöka olika datamodeller och befintliga applikationer försöker arbetet säkerställa grunden till en unktionell webbapplikation. Arbetet ledde till en betaversion med begränsad funktionalitet som skall vidareutvecklas i framtiden till ett GNU/GPL projekt med öppen källkod för gratis användning och nerladdning. Målet med arbetet uppfylldes i stora drag, det frångicks dock lite på grund av tidsbrist som uppstod i samband med prototypprogrammeringen. https://lup.lub.lu.se/student-papers/record/1324552/file/1324553.pdf application/pdf 544860 no 2006 swe numerical analysis Computer science GPL/GNU Genealogy research Multiuser webbapplikation systems control Datalogi numerisk analys system kontroll Technology and Engineering 1324552 2007-04-17T00:00:00+02:00 2011-02-22T15:46:10+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324556 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Mattias Johnsson author Rolf Björkman supervisor Electrotechnology with automation (BSc) LURS00006 department Föreliggande rapport är avsedd som ett examensarbete i elektroteknik (20p).<br /> <br /> Syftet med arbetet är att skapa en applikation för att finna störningar på<br /> <br /> lågspänningsnätet upp till 95kHz. Bakgrunden till arbetet kommer från<br /> <br /> energibolagen som vill kunna skicka datainformation direkt på<br /> <br /> lågspänningsnätet, detta vill de kunna göra med hastigheter mellan 2k ? 5kHz. Beroende på med vilken hastighet man vill skicka information kan störningar mellan givna frekvenser hindra datatransmissionen, därför är det<br /> <br /> viktigt att hitta vid vilka frekvenser störningarna uppstår så att lämpliga<br /> <br /> åtgärder kan vidtas.<br /> <br /> Grundläggande delar i applikationen är ett oscilloskop för mätning, dator med<br /> <br /> GPIB- kort för upptagning av data och LabView programvara för hantering av<br /> <br /> data. För frekvensanalys kommer Fast Fourier Transform, FFT, att användas,<br /> <br /> varvid en grundläggande beskrivning kommer att medfölja. https://lup.lub.lu.se/student-papers/record/1324556/file/1324557.pdf application/pdf 1146846 no 2006 swe GPIB LabView Fourieranalys FFT Electronics and Electrical technology Elektronik och elektroteknik Technology and Engineering Elektroteknikprogrammet (äldre) 1324556 2007-04-17T00:00:00+02:00 2011-02-22T16:47:09+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324564 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Martin Andersson author Emil Tinebo author Tuve Wällstedt supervisor Computer Science and Engineering (BSc) LUR000047 department Syftet med denna rapport är att noggrant redogöra för och analysera de fråge-ställningar som satts upp och samtidigt beskriva utvecklingsarbetet av ett datoriserat system för att hantera bokningar och för SMS-notifiering.<br /> <br /> De frågeställningar som, i denna rapport, besvaras är:<br /> <br /> 1. Går det att skapa ett datoriserat bokningssystem som bidrar till att Bärarelagets arbetsprocess effektiviseras men som samtidigt är lätt att lära för användare med liten eller ingen datorvana?<br /> <br /> 2. Går det att vidareutveckla det som redan gjorts för att besvara frågeställning 1?<br /> <br /> Bärarelaget är ett företag som specialiserat sig på kompetensuthyrning där mobilkranar, kranbilar och truckar behövs. Företaget har anor från början av 1900-talet och finns i dag i Helsingborg, Ängelholm, Landskrona och Malmö.<br /> <br /> Bärarelaget har idag inget datoriserat system för att hantera och organisera inkomna bokningar. Detta görs för hand och på papper. För att lösa detta har vi konstruerat ett bokningsprogram som skall hantera och lagra inkomna bokningar. Vår analys visar att programmet på sikt faktiskt löser problemet då bokningarna sparas på ett bättre sätt och således ökar bakåtspårnings-möjligheterna. Analysen visar också att det krävs att en inlärningströskel överkommes för att tillfullo dra nytta av programmet. Detta innebär att det i en inledande fas kan uppfattas att vårt program är ineffektivt. När väl inlärningströskeln överkommits medför vårt program, kallat Bokningsprogrammet, dock endast fördelar.<br /> <br /> Ibland återvänder kranförarna till depån för att sedan direkt köra vidare till nästa jobb. Här såg vi en möjlighet i att förbättra kommunikationen med kranförarna genom att konstruera ett program som kan skicka SMS. Detta program, kallat SMSender, skickar genom en GSM telefon kopplad till datorn ut SMS till en eller flera kranförare.<br /> <br /> Systemet har idag flera möjligheter till utbyggnad. Företaget har en önskan i att få sin hemsida kopplad till databasen så att korrekt information, om exempelvis antalet maskiner och personal, visas. Systemet kräver också en säkerhetsundersökning för att säkerställa att programmet inte öppnar möjligheter för dataintrång. Vidare finns det möjlighet att integrera funktionaliteten av SMSender i Bokningsprogrammet.<br /> <br /> Nyckelord: Bokningssystem, SMS-notifiering. https://lup.lub.lu.se/student-papers/record/1324564/file/1324565.pdf application/pdf 497663 no 2006 swe numerical analysis Computer science kompetensuthyrning Bokningssystem SMS-notifiering systems control Datalogi numerisk analys system kontroll Technology and Engineering 1324564 2007-04-17T00:00:00+02:00 2011-02-22T15:45:12+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324589 2025-07-29T13:03:30Z HumanitiesTheology LifeEarthScience Medicine SocialBehaviourLaw Technology

studentPublicationsM2 Anna Åberg author Marie Cronqvist supervisor History v1000057 department The pdf is excluding images, because of uncertainties regarding copyrights. Instead I have put links for each picture so you may find them on the Internet. For a list of links to the online sourcematerial, please visit http://del.icio.us/Cyborguppsats https://lup.lub.lu.se/student-papers/record/1324589/file/1324590.pdf application/pdf 502186 no 2007 swe cyborg forskningskommunikation vetenskapsstudier historiebruk Haraway Biomechanics, cybernetics Biomekanik, cybernetik Physical medicine, kinesitherapy, revalidation, rehabilitation Rehabilitering (medicinsk och social) History Historia Contemporary history (since 1914) Nutidshistoria (från 1914) History of science Vetenskapshistoria Press and communication sciences Journalistik, media, kommunikation History and philosophy of technology Teknikhistoria, teknikens filosofi Military science and technology Försvarsteknologi Biotechnology Bioteknik Biology and Life Sciences Medicine and Health Sciences History and Archaeology Philosophy and Religion Social Sciences Technology and Engineering 1324589 2007-04-18T00:00:00+02:00 2009-01-30T00:00:00+01:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324626 2025-07-29T13:03:30Z Technology

studentPublicationsM3 Mattias Kärrholm author Finn Werne supervisor Department of Architecture and Built Environment v1000213 department no abstract available https://lup.lub.lu.se/student-papers/record/1324626/file/1324627.pdf application/pdf 732723 no 1999 swe space syntax urban morphology architectural theory Technological sciences Teknik Technology and Engineering 1324626 2007-04-23T00:00:00+02:00 2007-10-15T00:00:00+02:00 1999-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324630 2025-07-29T13:03:30Z Technology

studentPublicationsH3 Per Falås author Charlotta Borell Lövstedt supervisor Division of Water Resources Engineering v1000225 department Common reed is found in near-shore areas of many European lakes, where it forms dense stands. As waves are influenced by obstacles along the wave path, water and sediment motions caused by waves are affected by these stands. This study aims to evaluate the effect of common reed stands on waves, evaluate the effect of common reed stands on wave induced sediment resuspension, test a model for wave attenuation by vegetation and discuss extensive common reed stands consequences to sediment induced turbidity in lakes.<br /> <br /> In order to evaluate the effects of common reed stands on waves, a field experiment was conducted in the common reed stands of a southern Swedish lake. The water surface displacement was measured simultaneously both within and outside these stands. According to the wave measurements, the significant wave height decreases within stands of common reed, while the average period seems to increase.<br /> <br /> Based on the applied analysis of the wave measurements, it was impossible tell whether or not stands of common reed reduce the resuspension potential of wave regimes. This was not due to the wave measurements, but to a flaw in the analysis of the wave measurements. Visual observations indicated however that stands of common reed reduce wave breaking and thereby sediment resuspension.<br /> <br /> The model was adjusted to the prevailing wave regime with the drag coefficient and the drag coefficient seems to be dependent on Reynolds number. https://lup.lub.lu.se/student-papers/record/1324630/file/1324631.pdf application/pdf 1556535 no 2007 eng Phragmites australis Sediment resuspension Shallow lakes Alternative stable states Civil engineering Stands of common reed offshore technology hydraulic engineering Wave damping soil mechanics Väg- och vattenbyggnadsteknik Technology and Engineering 1324630 2007-04-04T00:00:00+02:00 2009-10-18T18:23:16+02:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324643 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Oksana Shastina author Margareta Sandahl supervisor Programmes in Helesingborg v1000317 department Enzymatisk modifiering av fiskolja - jämförelse mellan olika lipaser.<br /> <br /> I detta arbete studerades tre olika lipaser som katalyserade en metanolysreaktion i fiskolja.<br /> <br /> Målet med arbetet var att finna ett specifikt lipas för produktion av en EPA/DHA fraktioner från fiskoljan i en metanolysreaktion få högt utbyte av Sn-2 monoglycerider av EPA och/eller DHA och med detta kunna möjliggöra uppkoncentrering av hälsoviktiga fettsyror jämföra reaktionen i normal och superkritisk atmosfär.<br /> <br /> Metanolysen ägde rum i normal och superkritisk atmosfär genom att oljan, enzymet och metanol blandades i respektive reaktorn.<br /> <br /> Sn-1,3 specifika lipaser var isolerade från Thermomyces lanuginosa (Lipozym TL IM från Novozymes, Danmark) och Rhizomucor miehei (Lypozym RM IM från Novozymes, Danmark ) och ospecifik lipas från Pseudamonas sp.(Amano-C från Amano Enzyme Inc. Japan). Alla enzymer var immobiliserade på jonbytare.<br /> <br /> I försöken användes ?Ledins? fiskolja som var köpt i en lokal affär. Oljan var en blandning extraherad från oceanernas olika fiskklasser. Den innehöll även antioxidanter i form av vitamin E och naturlig citronolja.<br /> <br /> Reaktionsprodukter analyserades med TLC. Mängd EPA respektive DHA bestämdes med GC.<br /> <br /> Studier i normal atmosfär visar att Amano C är mer specifikt för omega-3 fettsyror än de andra undersökta enzymerna. Redan efter 5,5 tim reaktionstid blev utbyte i form av EPA MG 67 % och DHA MG 82 %. Efter 22h reaktionstid blev utbyte av EPA MG 94 % och DHA MG 100 %. Studier i superkritisk atmosfär visar lägre aktivitet av enzymet Amano C jämfört med normal atmosfär.<br /> <br /> Enzymet TL IM visade lägst specificitet i normal atmosfär. Högsta utbytet beräknad för EPA MG till 2 % respektive för DHA MG till 5 %. I superkritisk atmosfär konstaterades maximalt utbytet efter reaktionstid på 4 tim. Utbyte för EPA MG blev 29 % och för DHA MG 100 %. Det innebär att enzymet är mycket specifik för DHA produktion.<br /> <br /> I reaktioner med enzymet RM IM blev utbytet för EPA/DHA relativt konstant jämfört med andra enzymer. I normal atmosfär efter 22 tim blev utbyte av EPA MG 60 % och DHA MG 63 %.<br /> <br /> I superkritisk atmosfär efter 22 tim blev utbyte av EPA MG 30 % och av DHA 60 %.<br /> <br /> Av ovanstående kan dras slutsatser att reaktioner i superkritisk atmosfär går snabbt och högt utbyte kan ibland erhållas vid kortare reaktionstider jämfört med reaktioner i normal atmosfär. Detta gäller i fall processparametrar är optimerade.<br /> <br /> Nyckelord: . https://lup.lub.lu.se/student-papers/record/1324643/file/1324644.pdf application/pdf 455828 no 2006 swe Metanolys enzymatisk modifiering fiskolja produktion EPA DHA TLC GC Technological sciences Teknik Technology and Engineering Bioteknikprogrammet (avslutat) 1324643 2007-04-03T00:00:00+02:00 2011-02-22T16:49:01+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324651 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Gullstrand Mikael author Christin Lindholm supervisor Computer Science and Engineering (BSc) LUR000047 department RISKfree ? ett system för riskhantering inom programvaruprojekt<br /> <br /> I dagens IT-centrerade värld sker utvecklingen av hårdvara och programvara i en rasande takt. Om ett företag skall ha möjlighet att vara konkurrenskraftigt i denna utvecklingstakt, krävs det snabba och effektiva metoder i utvecklingsprocessen. Dessa krav från omvärlden på nya och mer komplexa produkter och tjänster innebär ofta nya och större risker för ett utvecklingsprojekt; både ekonomiska som tidsmässiga.<br /> <br /> Analyser av programvaruprojekt som har misslyckats visar att många av deras problem och risker kunde ha undvikits eller åtminstone drastiskt reducerats med hjälp av riskhantering. Oftast är det en optimistisk entusiasm över projektet som överskuggar viktiga varningssignaler om risker och problem enligt B.W. Boehms artikel ?Software Risk Management: Principles and Practices?. Vidare säger Boehm att identifiering och hantering av risker tidigt i utvecklingsfasen sänker de långsiktiga projektkostnaderna samt hjälper till att undvika projektkatastrofer.<br /> <br /> För att ett företag skall ha möjlighet att öka kvalitén och leveranssäkerheten av sina produkter, bör riskhanteringsprocessen bli en väl integrerad del i projektmodellen som genomsyrar ett projekts alla olika faser. För att undvika obehagliga överraskningar bör dessa risker identifieras, analyseras, prioriteras och hanteras på ett strukturerat sätt.<br /> <br /> Med detta examensarbete har jag undersökt möjligheten att utveckla ett verktyg där riskhanteringsgruppen i ett programvaruprojekt kan strukturera och organisera detaljerad information om projektet och dess risker. Resultatet är en databasdriven applikation där projektinformationen sparas och kategoriseras för att sedan möjliggöra analys och återanvändning.<br /> <br /> Enligt Roy och Woodings i artikeln ?A Framework for Risk Analysis in Software Engineering? är ett stort problem med riskhantering i utvecklingsprojekt att projekt och risker oftast skiljer sig markant från projekt till projekt. Men om informationen från tidigare projekt kategoriseras på ett strukturerat sätt bör tidigare erfarenheter vara möjlig att används för senare projekt.<br /> <br /> Nyckelord: Riskhantering, programvaruprojekt, riskexponering, Monte Carlo-simulering https://lup.lub.lu.se/student-papers/record/1324651/file/1324652.pdf application/pdf 1985043 no 2006 swe Riskhantering programvaruprojekt riskexponering Monte Carlo-simulering Systems engineering, computer technology Data- och systemvetenskap Technology and Engineering 1324651 2007-04-24T00:00:00+02:00 2010-04-27T11:11:49+02:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324655 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Carl-Emil Zaar author Margareta Sandahl supervisor Programmes in Helesingborg v1000317 department Isocyanater är en grupp kemiska ämnen som framförallt används vid tillverkning av polyuretan (PUR). PUR förekommer i en mängd olika varianter så som skum i möbler och bilar, men även som färger och lacker. Isocyanaters hälsovådliga effekter är välkända och exponering kan leda till olika typer av luftvägsbesvär (tex<br /> <br /> bronkit och astma). Det finns många olika metoder beskrivna för att mäta halter av isocyanater i luft.<br /> <br /> De isocyanater som används i industriella sammanhang är ofta tekniska kvalitéer som består av olika typer och isomerer av isocyanater.<br /> <br /> Försök har visat att det totala isocyanatinnehållet underskattas i vissa tekniska kvalitéer av isocyanater vid bestämning med kromatografiska metoder [1].<br /> <br /> Anledningen till detta är oklart, men analyter som är svåra att eluera med<br /> <br /> omvändfas LC eller allmänt svårlösta analyter skulle kunna vara en förklaring.<br /> <br /> I den här rapporten presenteras en metod för att karakterisera tekniska kvalitéer av isocyanaten MDI. Metoden baseras på kromatografisk separation med hjälp av HPTLC och karakterisering av fraktioner från HPTLC-plattan med MS.<br /> <br /> Isocyanaterna har analyserats främst som derivat med dibutylamin, men andra<br /> <br /> derivat har även studerats.<br /> <br /> Det gick att påvisa en fraktion med okänt isocyanatinnehåll, på HPTLC-plattan.<br /> <br /> Strukturen på ingående komponenter kunde inte säkerställas. I upptagna spektra kunde typiska isocyant-DBA-fragment återfinnas så som m/z=130 ([DBA+H]+) och m/z=156 ([DBA+CO]+). Identifieringen säkerställdes ytterliggare då TMDI derivatiserad med d18-DBA analyserades. Motsvarande fragment som för icke deuteriummärkt DBA återfanns. Antalet socyanatgrupper i bildade joner kunde även bestämmas. https://lup.lub.lu.se/student-papers/record/1324655/file/1324656.pdf application/pdf 515713 no 2006 swe Isocyanater MDI DBA HPTLC MS Technological sciences Teknik Technology and Engineering Kemiteknikprogrammet (?) 1324655 2007-04-24T00:00:00+02:00 2011-02-22T16:43:25+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324659 2025-07-29T13:03:30Z Technology

studentPublicationsM2 Roger Hurtig author Nils-Bo Nilsson supervisor Programmes in Helesingborg v1000317 department Hur varierar proteinsammansättningen i ölet genom<br /> <br /> ölbryggninsprocessen och hur stor skillnad är det mellan kornmalterna. Syftet med mitt examensarbete var att se hur proteinsammansättningen<br /> <br /> förändrades under olika steg av en ölbryggningsprocess.<br /> <br /> Proteinsammansättningen delades in i 3 grupper: 1) albuminer och<br /> <br /> globuliner, 2) hordeiner och 3) gluteliner. Dessa protein jämfördes<br /> <br /> mellan 2 sorters malt för att se om någon skillnad kunde ses.<br /> <br /> Ölen bryggdes efter ett standardrecept för pilsneröl. Under ölbryggningsprocessen togs prover ut vid bestämda steg och tidpunkter.<br /> <br /> Proteinsammansättningen bestämdes genom analysmetoden SDS-PAGE.<br /> <br /> Resultat: visade att ingen synbar skillnad på proteinsammansättningen mellan malterna kunde ses.<br /> <br /> Proteinsammansättning i de olika stegen var däremot tydlig, albuminer<br /> <br /> och globuliner är de enda protein som finns kvar i det färdiga ölet, varav<br /> <br /> de flesta är z-protein. . https://lup.lub.lu.se/student-papers/record/1324659/file/1324660.pdf application/pdf 454462 no 2006 swe Proteinsammansättning bryggningsprocess maltkorn analysmetod Technological sciences Teknik Technology and Engineering Kemiteknikprogrammet 1324659 2007-04-24T00:00:00+02:00 2011-02-22T16:44:45+01:00 2006-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324731 2025-07-29T13:03:30Z Technology

studentPublicationsH1 Björn Sjödén author Agneta Gulz supervisor Cognitive Science v1000050 department Virtual Reality and advanced, interactive simulators illustrate the potentials of modern technology for improving the ecological validity of learning experiments. Yet much more preliminary work is needed to appreciate how these growingly complex means can be utilized to promote high-order emotional and motivational constructs of the user, such as self-efficacy. Drawing from the frameworks of serious games and social cognitive theory, the present study presents a tentative design for promoting the learner&#39;s self-efficacy for driving, as represented in a full-scale game-based car simulator. In a pilot experiment, 30 inexperienced drivers assessed their own driving self-efficacy with regard to three specific traffic safety variables before and after they were randomly assigned to either a new, adapted version of the game, aimed at promoting the player&#39;s self-efficacy through positive feedback and matching challenge (experimental condition) or a standardized game version developed for previous studies (control condition). The results indicate a higher increase in self-efficacy, a stronger over-all experience and a greater improvement in keeping the speed for participants in the experimental condition than in the control condition. All participants improved their driving skills, but the results were less clear between the two groups with regard to changing lanes and keeping distance to other vehicles. The results encourage further research into how serious game-based simulations should be designed, specifically and generally, to incorporate self-efficacy theory for promoting the learner&#39;s sense of being able to manage the learning task(s) at hand. https://lup.lub.lu.se/student-papers/record/1324731/file/1324732.pdf application/pdf 387055 no 2007 eng control systems numerical analysis Computer science Virtual Learning Environments Virtual Reality Interactive Simulations Datalogi numerisk analys system kontroll Artificial intelligens Artificiell intelligens Technology and Engineering 1324731 2007-09-25T00:00:00+02:00 2009-04-20T10:48:23+02:00 2007-01-01T00:00:00+01:00

oai:lup-student-papers.lub.lu.se:1324818 2025-07-29T13:03:30Z Medicine Technology

studentPublicationsH1 Johan Hägg author Gunilla Islander supervisor Marcus von Euler supervisor Department of Architecture and Built Environment v1000213 department This master thesis was performed at Architecture and Development Studies at Faculty of Engineering (LTH), Lund University. It is a collaboration with NASA at Johnson Space Center (JSC), Houston and Lund University Hospital with the objective of making an operating table for long term missions like Mars explorations. The Zero Gravity Surgical Workstation (0GSW) is an operating table designed to manage medical traumas in a microgravity environment. It is a part of a contingency plan to enable future interplanetary missions where medical events need to be handled on spot without any support from Earth.<br /> <br /> Industrial Design is often associated with compelling aesthetics of products produced in large numbers. It is a tool to improve competitiveness and to promote the company brand, but there is also a wider aspect of industrial design. The 0GSW is neither a consumer product with a focus on styling, nor is it intended for a large scale production. The aim has been to provide an innovative solution with user centred qualities for surgery in deep space. It deals with an environment in which the design is the consequence of the microgravity and the limited space on board spacecrafts. https://lup.lub.lu.se/student-papers/record/1324818/file/1324819.pdf application/pdf 5249118 no 2007 eng 'Johan Hägg' 'Johan' 'Johan Hagg' 'Hägg' 'Hagg' '0GSW' '0 G Surgical Workstation' 'Zero Gravity Surgical Workstation' 'kirurgi i mikrogravitation' 'NASA' 'JSC' 'LTH' 'Faculty of Engineering' 'Lunds Tekniska Högskola' 'Lund University' 'Lund University Hospital' 'surgery in space' 'space surgery' '0 G Surgery' 'microgravity surgery' 'microgravity' 'operating table' 'surgery' 'operation i tyngdlöshet' 'operationsbord' 'design' 'industrial design' 'industridesign' 'produktdesign' 'product design' Medicine (human and vertebrates) Medicin (människa och djur) Technology of other products Produktteknik (allmän) Medicine and Health Sciences Technology and Engineering 1324818 2007-09-20T00:00:00+02:00 2007-10-01T00:00:00+02:00 2007-01-01T00:00:00+01:00 Technology!!!mods!500