The economic growth we have experienced the last century is based on limited natural resources. Whether these resources will last for a further economic growth is widely debated. Pessimism and optimism have each been influential philosophies in debate whose opinions can be conceded as two opposing opinions. In this paper we have analyze these opinions from an economics perspective. To study this further, the construction and meaning of the pessimistic and optimistic arguments have been applied implicitly on the Leontief production function and the Solow growth model.

This study is based on interviews with six students from Stockholm that have shared their feelings/opinions about how they experience their identity as a student. The aim of this master?s thesis is to examine how the identity of students is constructed but also how the post modern society affects the life that the students are living. With a higher demand on education and responsibility of making the right decisions, the student?s main concern is not only her studies, but also the goal to succeed in her life.

The division of Electricity at Uppsala University is developing a wave energy converter(WEC) consisting of a linear generator connected to a bouy at the water surfacethrough a wire cable called the connection line.During extreme conditions, the wave power plant will experience forces up to 500kN, which lead to unnecessary wear and will ultimately cause the failure of theconverter. To prevent this there is a need for a damper.The wave energy converter works at a maximum efficiency when the translator?sare centered with respect to the stator. Due to tidal movements the position of thetranslator can deviate. There for a mechanical divice that will compensate for this isneeded.This report describes the further development of an earlier project where a tidalwave compensator for a wave energy converter of Seabased AB was developed.

With growing economies and better living standards in many parts of the world today, there is a need of expanding the capacity of generating electricity. The alternatives for renewable energy technologies are not fully developed and have still some problems to conquer.The company Minesto has developed a technology that is called Deep Green. It is designed to gain electricity from tidal currents. Deep Green works in a similar way as a kite that is attached to the seafloor with a moving wire. It contains of a wing that moves due to the water current.

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.

With an increased demand for biomass based energy and with development of better technique harvest biomass, new possibilities open up. With the possibility to combine traditional cleaning of road?s right of way with biomass harvesting, the work of suppressing tree vegetation could become profitable or at least decrease the road maintenance cost. However, knowledge about productivity and profitability in mechanical biomass harvesting in roads? right of ways are still limited.

Sandvik står inför många nya utmaningar då världen globaliseras. Sandviks strategiska plan syftar till att nå världsklass inom verksamheten och värdeskapande för aktieägarna. Sandvik Mining and Construction Köping AB är i startfasen när det gäller förbättringsarbete och 5S. 5S står för sortera, systematisera, städa, standardisera och se till.Syftet med detta examensarbete är att undersöka hur man genomför en förändring på bästa sätt och applicera det på implementeringen av 5S på Sandvik Mining and Construction Köping AB. Målet med examensarbetet är främst att göra en nulägesbeskrivning samt utveckla och arbeta efter framtagen arbetsmodell.

This project has been about making a design suggestion for a boat accessory that adjuststhe distance between a sail-or motorboat and the dinghy, which is connected by a rope inthe stern. Today this is all done by hand and can lead to problems when it comes tostressful situations such as harbors and narrow passages.A company called Sailsafe came up with the idea and the construction, which they alsohave tested. I found them through an acquaintance at Dacat AB where I did an internshipin the fall of 2010.Using sketching as the primary tool I?ve worked in an almost-real design project with theaim to develop my skills and give the company a relevant design suggestion. Dacat thenhelped me with a 3d model in Alias, which was printed in 3d and painted in thepaintworkshop at school..

The cost of transportation has strongly increased in the recent years, transportations which are a major part for the construction companies. Skanska Asphalt which is a part of Skanska Sverige AB has noticed that there are significant cost savings to be made with the purchasing of transports. The transports in this case is about asphalt, where the costs are about 10% of the outsourcing business turnover. The purpose of this thesis is to study the working practice that Skanska Asphalt are using today in controlling and time-writing, for the asphalt transportations. Resulting in recommendations on how to improve the working practice at Skanska Asphalt.This study was conducted with the help of a number of interviews with Skanska?s employees and with suppliers of transportation to describe the practices which are being used in during the asphalt transportation.

In this study a multiple linear regression was carried out in the interest of analysing a number of variables effect on the final prices of apartments in Stockholm?s inner districts. The result may be employed to predict and observe percentage changes on the final price of apartments in Stockholm in the future. Five models were constructed after which they were analysed and compared. The construction of these models were supported by data from the real estate agency Erik Olsson.

BakgrundI Sverige har kommunerna ansvar för att alla invånare har tillgång till bra bostäder. För att kunna erbjuda bra bostadsalternativ som gör att fler vill bosätta sig i kommunen krävs att det finns mark för bostäder. Idag finns fastigheter bildade för bostadsändamål som inte har blivit bebyggda. I kommuner där det råder bostadsbrist och det finns en tydlig efterfrågan på mark för bostadsändamål är det viktigt att ta reda på varför fastigheterna inte blir bebyggda. Tidigare studier har utförts som i stort behandlar faktorer som kan förhindra bostadsbyggandet men privata fastighetsägares motiv till att inte bebygga sina fastigheter är ett outrett område.

Syfte: Studiens syfte var att jämföra en ny extubationsalgoritm med sedvanligtextubationsförfarande. Gruppen som studerades var patienter som genomgått en HIPEC-operationoch vårdats på Centrala intensivvårdsavdelningen.Metod: I En randomiserad kontrollerad klinisk pilotstudie randomiserades patienterna till en av tvågrupper. Därefter extuberades patienten enligt en studiealgoritm eller post-operativ standard.Resultat: Syresättningen var väsentligen oförändrad för studiegruppen (37,5 kPa till 36,6 kPa)medan den sjönk för kontrollgruppen (50,1 kPa till 40,6 kPa) vid jämförelse mellan 10 minuter efterankomst och 15 minuter efter extubation. Efter 13 till 18 timmars kontroll strax innan patienternalämnade intensivvårdsavdelningen var syresättningen på samma nivå som 15 minuter efterextubation för både studiegruppen och kontrollgrupp. Således kvarstod en försämrad syresättninghos kontrollgruppen vid utskrivning jämfört med 10 minuter efter ankomst.Slutsats: Studien visar att det skulle kunna vara fördelaktigt att extubera patienter enligt denstudiealgoritm som testats jämfört med dagens kliniska standard.

Today we can create digital 3D models which can be realised almost instantly through production methods such as 3D printing and computer controlled milling.What if this same technology could be applied to the development and construction of terrain parks?With snow as the material tools could be developed using similar principles to design and sculpt the surface, only on a larger scale.How would terrain park designers adapt their process to use this new technology? In this Industrial design thesis I explore how the ideas of the terrain park designer can be expressed through such a system with focus on the designers knowledge and skill without the need to learn complicated 3D programs.Sketch, create, ride. .

The goal in doing this study has been studying public interpretations of media content in the commercials that this study uses. The analysis was based on two TV commercials for feminine hygiene products. Initially, they seemed to differ from each other, but soon the question whether or not they in fact did convey the same underlying message was raised. The theoretical premises on which the study was founded on are the gender perspective in advertising and the social construction of gender. To reveal the hidden signs appearing in these commercials and to find out their meanings, we used the method of semiotic analysis.

This report aims to describing the work behind the development of a masonry heater.The masonry heater is developed in collaboration with the company Transient Design KB that is a product development company located in Alingsås. The company sees a possibility to cover a market segment where modern technology and design are missing.The report presents those methods and approaches that have been used and gives an overview to how the project has been carried out. It describes how the ideas behind the final results have produced and how they have been developed during the project's time. In the report you can also read about the final concept with its choices of construction and materials.The report is completed with a presentation of a final concept and a ground for possible future production..