This project was aimed to study the degradation of polystyrene-butadiene-styrene block copolymer (SBS). SBS is used to modify bitumen, the binder in asphalt. From earlier studies it is known that SBS degrades in bitumen, but the degradation products have not been identified. To be able to determine the long term effects of SBS in the environment, degradation products need to be identified. Polystyrene forms rigid blocks with polybutadiene as a rubbery matrix between the ridgid blocks.

In today?s fast growing and closely connected society, a reliable and energy efficient transportation system is more than ever desirable. Nowadays the significant part of the transportation sector?s energy demand is supplied by fossil fuels.Improving energy efficiency in combustion engines will result in reduction of fuel consumption and CO2 emissions. A modern internal combustion engine has an efficiency of 30-45 %, where the most energy loss occurs as result of heat losses in the exhaust and cooling systems.

In speech and language intervention, the ability to interact is seldom evaluated; rather intervention is evaluated in terms of improved testresults.  If goal-setting in intervention also is based on everyday communicative needs, the relevance of the treatment may be increased and intervention outcome may be implemented in the patient?s natural environment.The present study, as part of a research-project, is based on analyses of interaction and interviews to examine everyday conversations and speech and language intervention. The aim was to explore if there is a relation between everyday communication needs and goal-setting in speech and language intervention for people with aphasia. A further aim was to investigate if there are everyday communicative needs that may form goals for speech and language intervention.Two individuals with aphasia and one individual with both dysarhtria and aphasia participated in the study. Three speech and language pathologists and two relatives also participated in the study.

Detta examensarbete har utförts på uppdrag av Koenigsegg Automotive AB, som utvecklar, tillverkar och säljer högpresterande sportbilar. Företaget erbjuder fälgar tillverkade helt i kolfiberkomposit, som ger betydande viktbesparingar i jämförelse med traditionella metallfälgar.Efter tillverkningen kräver fälgarna viss bearbetning vid anläggningsytan mellan fälg och däck. Syftet med examensarbetet har varit att undersöka möjligheten att utföra bearbetningen av fälgarna in-house i Ängelholm, och målet har varit att konstruera en maskin för detta ändamål.Projektet inleddes med en litteratursökning, där svårigheter och möjligheter gällande bearbetning av kolfiberkompositer undersöktes. Till följd av de undersökningar som gjordes, valdes bearbetningsmetoden svarvfräsning och ett antal konstuktionskoncept genererades. Genom ett antal utvärderingar utvecklades ett speciellt koncept vidare till ett komplett produktförslag.Produktförslaget är komplett med analyser, beräkningar samt tillverkningsunderlag, som ger uppdragsgivaren bättre insikt i sina möjligheter.

Ask any constructional worker and there is a high probability that this person knows a colleague with pain or other disorders caused by working with power tools.According to the Swedish Work Environment Authority 71 percent of the Swedish constructional workers is exposed to vibrations at least 25 percent of the working hours. Despite this, the number of reported occupational sicknesses caused by vibrations is as low as 1, 4 percent.JM Ltd. is one of the largest constructional companies in Sweden. Their main business is new housing and development of residential areas. God quality and low impact on the environment is a part of great importance in the company?s long-term goals.

This report describes the planning and the accomplishment of the final diploma workat the study program Mechanical Engineering, Department of Engineering Sciences, Uppsala University. Two students carried out the diploma work at GE HealthcareHusbyborg in Uppsala.The aim of the diploma work was to develop and improve existing processequipment for 11C-radiochemistry in PET. The process equipment was to be dividedinto smaller independent modules to make it more flexible. Part of the existingprocess equipment is an oven that is supposed to perform a specific chemicalreaction. One of the main goals was to study and improve this oven.The work could be divided into three main phases: 1.Present concepts for one module, and interface between different modules.

Med anledning av JM:s satsning på Lean Construction, där företaget arbetar med att effektivisera verksamheten, syftar detta arbete till att identifiera frekvent försenade arbetsmoment och orsaker till detta. Arbetets datainsamling av olika typer av förseningar har avgränsats till nio tillhandahållna flerbostadsprojekt från olika delar av Sverige. Den data som har behandlats innefattar mötesprotokoll och tidsplaner som sedan låg till grund för de personliga intervjuer med arbetsledning för de olika projekten. Utifrån insamlad data och intervjuer genomfördes en enkätundersökning via Internet riktad till arbetschefer, platschefer och arbetsledare. Totalt blev 93 stycken personer från Stockholm och 95 från regioner inom affärsenheten Riks blev inbjudna att delta i undersökningen. Genom granskning av tillgängligt material kunde det konstateras att de arbetsmoment som vanligen upplever någon form av försening är:Arbeten under normalplanStällningsarbetenFasadarbetenHissmontagePlattsättningKöksleveranserVad beträffar arbeten under normalplan är brisfälliga geotekniska undersökningar en vanlig orsak till försening, vilket i sin tur kan leda till undermåliga bygghandlingar.  Andra vanliga orsakerna till att ovanstående moment blir försenade är framförallt bristande styrning av egen personal och underentreprenörer.

Environmental destruction is a growing problem in our world. Almost every day there are new reports concerning that we have to do something about the greenhouse gasses. Simultaneously is the human constantly more eager to have a life with higher standards and therefore uses more energy. The environment is a question that is highly up-to-date and more people try to find solutions on how to save our planet. One way to decrease the energy demand is to build passive houses, where the houses don?t have any active heating.

Foreign invested SMEs have recently become increasingly interested in China. The enterprises are in this report categorized as second wave companies since they follow the footsteps of previous pioneers, of which mostly were larger companies. The ambitions of the SMEs are either to sell products on the ever expanding Chinese market or to utilize the potential of low cost production for global markets. The existing literature is fragmented and solely based on the experience of larger companies. We believe that SMEs are facing new and different challenges, and thus a new generic theoretical frame work is desirable.

The purpose of this work is to design and construct a device able to measure the mechanical attrition of oxygen carrier particles. Those particles are used in chemical looping combustion and in the present situation there is a lack of knowledge in how the attrition process work and in which extension. To find already tested solutions trying to answering this problem a literature study wascarried out and the best solution found was the so called Grace-Davison Jet-Cup method. This method is supposed to emulate the attrition caused by a cyclone separator and its advantages are that it is possible to use small test amounts, 5-10 g, and a thirty minutes long test will be enough to acquire useable results. An device was designed based on the Jet-Cup method with some slight modifications.

The purpose of this paper is to investigate and analyse the private researchers encounter with the Royal Library, national library of Sweden. The main focus is on answering the two questions: who is the private researcher and what is his/her impression of the Royal Library? These questions are answered from the vantage point of the following theoretical perspectives: library anxiety, Bourdieu, library architecture, gender studies and service management. The methods used are qualitative interviews, and textual analysis using the printout of these taped interviews along with notes and an earlier user study as material. The conclusions are that barriers with staff is the most frequent factor of library anxiety in the private researcher at the Royal Library, and mechanical barriers the least frequent.

The aim of this study is to analyse how female neopagan practitioners form their identitiesindividually as well as collectively. Using Ernesto Laclau?s and Chantal Mouffe?s discourse theory and Anthony Giddens? descriptions of late modernity and self-identity, I intend toinvestigate my informants? construction and upholding of a meaningful identity and sense ofself. I will also look at how the neopagan movement can be viewed as a phenomenon closely interwoven with the overriding tendencies in our contemporary society. Neopaganism is an umbrella term that is used to describe a number of modern nature religions that take their inspiration from pre-Christian traditions.

Purpose/Aim: The aim with my study is to reveal changes in the construction of gender in weekly press over time. To do so I study the picture of the woman on front pages of the Swedish magazine Veckorevyn.Material/Method: Qualitative research method, semiotic picture analysis.Main results: There have been a lot of changes in the picture of the woman in Veckorevyn over the years and the results points to a more objectifying picture. The woman has gone from doing something and actually having a role, to simply being there to be looked at, all passive..

Syftet med examensarbetet har varit att undersöka möjligheterna att utveckla, producera och lansera en ny universell laddare. Målet har varit att kunna ladda så många modeller av så många produkter som möjligt, vilket innefattar mobiltelefoner, kameror, datorer och MP3-spelare etc. Arbetet skulle leda fram till ett förslag på produkt.Genom att undersöka befintliga patent och produkter, har marknaden granskats och slutsatsen är att det finns en uppsjö av universella laddare på marknaden. Dock finns det få produkter som inger säkerhet, möjliggör multipel laddning och som är stationära. Dessa egenskaper blev grundstenar i den kravspecifikation som utarbetades.

This report is a bachelor thesis work in the field of product development and design. The assignment has been to develop a solution for roof racks, normally used for cars, to fit on the open trailer models FS1425 and Alugance. The project was implemented by Johan Andersson and Victor Karlsson, students at the Mechanical Engineering program with a focus on product development and design at Jo?nko?ping?s school of Engineering, in spring 2012.The client wants to use transport solutions in the same way as roof racks on cars. The user of such a product is assumed to desire simplicity, safety and an attractive design with an appealing price, which has been a challenge during the thesis work.Pre-studies have been conducted to examine the potential competitors and gain knowledge in the research area.