The purpose of this master thesis has been to find different solutions to the design of a headlamp with a cluster of three or possibly four high power LEDs (Light Emitting Diodes). During the work, two different problems have been considered; how to design a lens in order to shape the light beam in a desirable way, and how to design a cooling system which will lower the temperature of the LEDs as efficiently as possible, still taking into account the geometry set by the optical solution as well as other given geometries. The results presented in this thesis are partly the outcome of a literature study, but derive mainly from a number of tests and measurements made on two test rigs and one concept prototype..

This report presents a master thesis project performed at Elekta AB during the fall of 2013 and early 2014. Elekta is a medical technology company and their main product in the Stockholm office is a gamma knife used for radiosurgery. The gamma knife contains a cluster of a dozen motor servos and motors used for adjusting the patient and the radiation sources over a CAN bus. A self-developed hardware-in-loop simulator running on a PC with LabVIEW is currently being used for integration level testing of the control system of the gamma knife. The simulator has some problems with it not running in real-time and having other performance issues.

Denna uppsats visar, med en kvantitativ undersökningsmetod, hur försäljningen hos Telenor Sveriges butiker påverkades beroende på om butikerna var placerade i kluster eller inte, i gatuläge eller gallerior, samt med hänsyn till vilka konkurrenter som fanns i närheten. Studiens slutsats tyder överlag på att det, för försäljningen, var bäst att finnas i ett kluster, helst i kombination med en butiksplacering i en galleria..

The gap between practise and theory is often described in negative words in teachers? professional lives. Learning study is a model for teachers´ professional development where a theoretical framework is used to enhance practice. The theoretical framework used by teachers in learning study is variation theory. In this study the research object is variation theory and the aim is to present how variation theory becomes a guiding principle to understand teaching and learning processes.

This master thesis concerns whether Swedish non-financial listed firms act in accordance with the optimal capital structure theory and/or pecking order theory. The examined period is 1998-2004 and we discover that Swedish companies neither follow optimal capital structure theory nor pecking order theory. From our results we conclude that there exists no single point of the capital structure which is optimal. Rather it seems as if the optimal point lies in-between an interval from 0 to the industry average, where firms tend to be indifferent to their debt-ratios. Our results show that Swedish companies prefer internal financing followed by equity and as last choice debt issuance..

This text concerns itself with war, the just war theory, and the application of that doctrine on the ?war on terrorism?. I present different views on the theory's place in the discourse, its relevance for unconventional wars followed by the analyses of above mentioned empirical situation.Particular interest is given the criteria concerning proportionality, both ad bellum and in bello, due to in part its difficult nature, and the attention it has received from others. This paper asks the question: Is the just war theory adequate for analysis of modern war?There are few alternatives.

Adam Smith?s economic theory is often subject to criticism, in which it is claimed to be inherently inconsistent. Recently, criticism from well-known scholars has arisen claiming Smith should be characterized a labor value theorist anticipating Karl Marx. This study seeks to analyze whether such criticism is legitimate. Firstly, the economic theory of Smith is discussed in terms of consistency, and secondly, a number of typical and main points of the critique, from the most influential of his contemporary critics, are lifted up and analyzed.

The movie industry in Sweden is seen as a tight holding cluster where the different entities are being highly dependent on each other. There are also many different barriers to get a movie fully financed, and with the people in charged using arguments such as ?quality?, which is not objective but in fact subjective. The aim of this essay is to investigate how the leadership of five female film producers is being constituted in the film industry, an industry which is both close to the pool art and the pool commerce at the same time at it is male dominant. We have found that female film producers tend to use the strategy to adapt to the surroundings ?shouts? and ?demands?, at the same time as they adapt to their environment by becoming/not becoming entrepreneurs..

A new theory for predicting the windprofile over a canopy has been evaluated. The theory was first presented by Harman and Finnigan (2007). The theory relies on the forming of a mixing-layer above the canopy, due to different mean wind in and above the canopy. Characteristics from both mixing-layer and Monin Obukhov similarity theory have been used to develop the governingequations that give the wind profile. The theory has been used to calculate wind profiles for sixdifferent atmospheric stabilities.

Virtualization has increasingly been adopted in the last decade and the usages of virtualized environments are going to be an important part of how computers are used in the nearby future. There are a lot of advantages with virtualization and different methods have been developed to make it as efficient as possible.Forsmarks Kraftgrupp were interested in the possibility of taking advantage of virtualization in their testing environment.In this report, hypervisors of type 1 and type 2 and containers have been evaluated to determine which method and what program is preferable on a server cluster of four HP ProLiant DL380 Generation 4. Because of the hardware specifications of the DL380, focus has been on virtualization programs that do not require hardware assisted virtualization.The results show that it is possible to use some of the type 2 hypervisors on the HP ProLiant DL380 Generation 4. The suggested virtualization programs are VMware Workstation or Oracle VirtualBox. .

AbstractThe purpose of this study is to analyse the reading- and writing-approaches: the LTG-method and the whole language-theory. The attention is to perform a comparative literate-study to distinguish their similarities and differences, and examine which one of the approaches that is most clearly anchored in the syllabus of the subject Swedish. The starting-point of the study is the questions: Which similarities respectively differences have the LTG-method and the whole language-theory? Which one of these theories is most clearly anchored in the syllabus of the subject Swedish? The study has shown that both the whole language-theory and the LTG-method can anchor in the syllabus for Swedish. However the whole language-theory has stronger hold in the syllabus, as the whole language emphasises the meaning of literature for reading- and writing-learning, and considers the pupils reflection during their learning-process and conquered knowledge-goal.

This paper is about basic set theory and cardinalities for infinite sets. One of the results are that the line R and the plane R2 contains exactly the same number of points. Because of that the set theory is described with a formal language this the paper has an appendix about formal languages..

In this essay I want to investigate how the poodle strategy affects a person?s credibility when he or she uses it. The poodle strategy is a strategy, which someone uses when he or she is scrutinized by the media. It?s primary purpose is to suppress further media coverage but it is also a strategy for defending oneself and hence rescuing one?s reputation either as a private person or as an official.The essay?s research questions are:How has the strategy been applied for defensive purposes and what are the results?To which extent can the Stasis theory and Benoit?s theory on Apologia be connected to the strategy?Does the strategy affect the user?s credibility?To answer these questions four cases from the political sphere in Sweden where persons have been said to have ?done a poodle? have been analyzed.

The purpose of this paper is to explore how masculinity and femininity are constructed in the magazine Veckorevyn, through a critical discourse analysis of 18 articles from six issues in 2011. This is done by using a variety of theories and previous research results, which is gender theory, the theory of late-modern society and media theory. The analysis shows that Veckorevyn depicts virility and feminine differently. Furthermore, pointing the results from the analysis that a change of manhood and womanhood takes place in the social practice. The selection of articles from the magazine also shows that Veckorevyn seems to promote gender equality. .

Influences from military theory are a part of the development of military doctrines. This thesis has, by using a method with three different dichotomies, traced and classified influences from William S Lind?s theories regarding manoeuvre warfare in the Swedish military doctrine, for land operations. The purpose has been to discuss the connection between military theory and how the Swedish doctrine for land operations (DMarkO) has been formulated. It has also been to show what this influence depends on and what consequences it will present.The examination has shown that William S.