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828 Uppsatser om Geotechnical engineering - Sida 13 av 56

Guilty until proven? : Nanomaterial i konsumentprodukter som sociovetenskapligt dilemma.

Nano materials can today be found in a wide range of consumer products and the number of new products on the market is expected to inrease. In the shadow of hope for nano materilas potential in various applications, low awareness of its health and environmental risks is hiding. Furthermore, the knowledge about people´s risk perception of nano materials is limited. Parallel to the situation described above, the scholls meet the challenge of incrasing the scientific literacy. To achieve this goal, skills in argumentation in science studies has been emphasized and the concept of socio-scientific issues has been emerged.

Kylkedjan för snittblommor - en kartläggning av distributionen

Title:Chillchain for cut flowers ? how the distribution works.Author:Anna-Maja Svarén, student at Lund Institute of Technology, mechanical engineering.Supervisors:Annika Olsson, Department of Design Sciences.Bengt Sahlberg, Bioett AB.Problem:How does the distribution of cut flower works regarding temperature, losses, responsibility, complaints, packaging and weak points?Purpose: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.Method: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.Conclusions:The affect handling and distribution has on a cut flower is very complex.

Styrsystem : För en forskningsutrustning

The division of Engineering Materials at Linköping University, department of Management and Engineering, conducted a research project concerning Fatigue life of thermal barrier coatings during 2009. During this project equipment to provoke these fatigue failure by rapidly heating and cooling test subjects in cycles, was ordered.Design and manufacturing of the equipment was handled internally at LIU.The equipment was built using a furnace that is lowered and raised over the table where the test subject is placed. To keep the temperature of the furnace a lid slides in place to close the downward facing opening of the furnace when it is in the raised position. On this door there is nozzle that is used to cooling of the test subject by air.To make sure that the equipment can work independently you need an automation controller that can evaluate if movement can occur without danger of collisions. The control system also needs to monitor that all elements are performed according to plan.This degree project is based on a modular system from OPTO 22 and includes the configuration of a PLC that will be supplied with logic and a user interface.The degree project resulted in a graphic interface in which a user can set desired values for different parameters and get information about current values for them.

Briband - Vattendistribueringssystem

Uppdraget som gavs av Brimer VA Produktion AB i Osby var att ?föra fram deras nya vattenledningssystem i ljuset?, göra en FEM-beräkning på en detalj i systemet och ta fram en ekonomisk samt teknisk jämförelse mot det traditionella vattenledningssystemet. Bästa lösningen på uppgiften var att visualisera vattenledningssystemet med hjälp av animerade filmer. Detta med tanke på att visualisering har ingått till stor del i utbildningen Virtuell Produktutveckling & Design..

MellanRum Nygammalt stadsbibliotek i Stockholm

Grunden för examensarbetet är den tävling om nytt stadsbibliotek i Stockholm som Stockholms stad utlyste 2006. Det nuvarande stadsbiblioteket från 1928, ritat av Erik Gunnar Asplund, är en av Sveriges mest kända byggnader. Uppgiften har varit att rita en tillbyggnad som kan bilda en helhet tillsammans med det nuvarande biblioteket. Det har handlat om att först värdera det som finns idag och sedan tillföra något för framtiden..

Att lösa reglertekniska problem med Modelica

The purpose of this thesis is to examine and present the oportunities of solvingcontrol problems using Modelica. This is done by creating some demonstrationexamples with exercises. These examples should cover as many types of controlproblems as possible. The exercises are aimed for people with basic knowledgein modeling and automatic control engineering but with little or no knowledgein Modelica. There are different types of Modelica implementations and the onesused in this thesis are OpenModelica and MathModelica..

Kvalitetssäkring av stordimensionella gjutgods : Produktion och kontroll av formgjutna komponenter

AbstractA continuous improvement of products and production is an important goal for a modern industrial company. A small engineering group located in Sweden came in touch with the authors of this report during the spring semester of 2014. The aim of this report is, as part of the group´s ambition of improvement, to analyse ways in which the quality of component casted parts can be verified. Non-destructive testing (NDT), and methods to use it for quality control, is the main focus of this report. However, fields such as material standards, component casting and quality engineering are analysed as well.

Engångs- eller returtransportförpackningar i livsmedelsbutiker

Master thesis for Mechanical engineering, at the University of Lund. Incorporated in project Pondora.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.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.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.We have surveyed how the handling of transport packages for meat & provision and bread is done in the store.

Designerrollen i en webbdesignprocess

This study investigates if, and in that case, how design theory is applied in practice in the web development field. Prior research has focused on methods used in the web development field. We wanted to study the designers role in a web design process by comparing existing designer roles with design theory literature. We did qualitative interviews with two practitioners at two different communication agencies in northern Sweden. Based on our qualitative data and literature review we have concluded that a designer has to devote a lot of energy on requirements engineering in order to develop a clear understanding of the design situation..

"The Never Ending Story" : Sårbarhet och kamp för överlevnad i Olofströms kommun

The world around us is shrinking and globalization and capitalism are processes affecting the world. Global trends, like outsourcing and relocation of firms to low-cost countries, have become more common. This creates a huge vulnerability in the municipalities that today are concentrated around a single large company. One of these is Olofström which today is one of the most vulnerable municipalities in Sweden and whose survival today lies in the hand of the company ?Volvo Cars Corporation?.

Automatiserad Verifiering av Grafiska Ritare och Tranformationsutvinning

En grafisk ritare i flygande system måste under dess utveckling verifieras för att bekräfta att den fungerar. Då bilderna som ritas inte behöver vara identiska mot referensbilder genererade av en fungerande ritare så ställer det krav på verifieringsprocessen att kunna acceptera en viss grad av "fel". Att automatisera den processen är i högsta grad intressant för att minska kostnaden. Uppsatsen presenterar en samling lösningar på delproblem som kan uppstå, däribland ett sätt att utvinna eventuell transformation mellan två bilder..

Industriell produktion av loggia - en studie om loggiarum som alternativ till inglasad balkong

AbstractIntense competition in the building industry has forced building companies to develop highly efficient and optimised building solutions. This project, with a loggia that works both as an extended living room and a glazed balcony offers a highly economic viable alternative to standard balconies. This alternative is likely to attract build master since the area of the loggia will be part of the apartment area, i.e. included in the area for rent..

Webbsäkerhet och vanliga brister - kunskapsläget bland utvecklare

This bachelor thesis looks at developers knowledge about web security both regarding their own view on their knowledge and their actual knowledge about vulnerabilities and how you mitigate against them. Web developers knowledge regarding web security are becoming more and more important as more applications and services moves to the web and more and more items become connected to the internet. We are doing this by conducting a survey among developers that are currently studying in the field or are working in the field to get a grip on how the knowledge is regarding the most common security concepts. What we saw was that the result varies between the different concepts and many lack much of the knowledge in web security that is getting increasingly more important to have..

Undersökning av modern reproduktionsteknik för
karosseridetaljer

En marknadsundersökning av förekommande metoder för digitalisering av karosseridetaljer. Olika skannertyper analyserades och en rekommendation av lämplig metod lämnades till uppdragsgivaren. Förutom punktantal beaktades även punktorintering, inskanningskostnad/tid, positioneringssystem och mätrymd. Uppdragsgivaren rekommenderades att använda en optisk skanner för projicering av fransar med ett optiskt spårningssystem. Då tillverkning skall ske i mycket små serier berördes även olika tillverkningsmetoder, som exempelvis hydroformning mot ett formverktyg av aluminium eller kompositcement.

Lilla Spöket Laban

Detta är slutreflektionen över ett kandidatarbete gjort av Karl Tannergård och Per Thulin. Arbetet har gått ut på att skapa en prototyp av en barnspel baserat på Inger och Lasse Sandbergs böcker om Lilla Spöket Laban och hans familj. Spelet är tvådimensionellt och vänder sig till barn i åldern fyra till sju år. Det är skrivet i programmeringsspråket Python och använder multimediabiblioteket pygame. Utvecklingen har skett i samarbete med animationsstudion PennFilm AB..

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