In the electronic industrials, power control of AC motors is commonly used. For example power control of a washing machine motor, a vacuum cleaner motor or a coffee machine motor. The company Rejlers Ingenjörer AB has many projects where power control of AC motors is included. A prototype card for this task can save time and money for the company in the future and this is the reason for this thesis.The motors are power controlled by a TRIAC and control of the trigging pulses to the TRIAC. This card is modularly built and can easily be adapted for future projects where the power control of AC motors are included.The prototype card can be used as a subsystem in a larger electronics projects or as it is in lab environment for testing and evaluating new motors..

The aim of this thesis is to investigate what distinguishes the views of staff at centres for learning as regards users? motivation at centres for learning in public libraries. The following questions were asked:? How do staff at centres for learning view the users? motivation to studies?? How do staff at centres for learning view causes for lack of motivation and obstacles for motivation to studies?? What methods do staff at centres for learning use to motivate potential users to studies and to market the learning centres? ? What distinguishes these views of staff on users? motivation at centres for learning in public libraries?The methods used in this study are: literature studies, qualitative interviews and questionnaires. Interviews and questionnaires were done with six employees at six centres for learning.

The purpose of this thesis is, through both a quantitative and qualitative study, to map out how the interaction appears between the established parties and the radical right-wing party, the Sweden Democrat?s (SD) and their core issue ? immigration in the Swedish parliament. By applying analytical dimensions on the parliamentary protocols regarding the immigration issue between the years of 2010-2012 this study will get an insight on how the argumentation concerning immigration has developed since their entrance into the Swedish parliament in 2010. The result shows that SD, through the rejection treatment of the established parties, fulfilled the three conditions which accordingly to the study's theoretical framework are crucial for the party's future success. In the established parties? reception of SD regarding immigration, SD is, to a large extent, left unchallenged as the established parties rather focus on integration instead of challenge SD in the immigration issue.

Entrepreneurship is a subject of growing attention, especially within public policy, media and research. Many studies have been done, but the subject of entrepreneurial exit has to a large extent been ignored. The aim of this study has been to investigate how entrepreneurs at an early stage in their career think about exit within a near future, and what factors influence their attitude towards exit. The study was conducted through a survey answered by 253 entrepreneurs active within business incubators in Sweden. Based on previous research on entrepreneurial intentions, a model of exit intentions was developed, and tested against several other factors.

The purpose of this thesis is to determine whether the student councils at two schools really have the power to influence, or if it is a matter of mock democracy. I wanted to determine how the student councils work in reality. I conducted my investigation through personal and qualitative interviews with the board of the student council, a social studies teacher and the principle/school management at both schools. After the interviews I compared an analysed my findings. The results show that the two schools work very differently when it comes to studentdemocracy, and even have very different levels of ambition when it comes to the degree of influence that the student council should have at their respective schools.

Due to human influences on the climate an increase in Earth's mean temperature is today an accepted conception. With a rising temperature discussions have started how the climate in an area will change in the future. Equally interesting and important is it also to study the precipitation in an area. Precipitation is the factor, next to temperature, that affects most how a climate in an area looks like and feels. Since precipitation is connected to evaporation the latter parameter is also of interest to study.

Annual reports are by many considered to be companies primary way to inform their world where the CEO's words are read most carefully by shareholders. The purpose of this paper is to examine the design of the CEO's words in annual reports in light of the financial crisis in 2008. The study seeking explanations for change, similarities and differences in the various texts based on three themes which are results, future and confidence. In this qualitative study five CEO's words are explored by means of a discourse analysis, all from large Swedish industrial companies listed on the Stockholm Stock Exchange. Some of the results shown is that the CEO tends to talk about the company's results in a self-serving manner and CEO speaks more aboutm the results before than after the crisis.

Abstract Title: Ethanol for Scania?s future ? A scenario based analysis Authors: Anna Hansson and Julia Persson Tutors: Annette Cerne ? Department of Business Administration, Lund University Jonas Holmborn ? Head of Advanced Combustion, Engine Development, Scania Lennart Thörnqvist ? Department of Energy Sciences, Faculty of Engineering, Lund University Problem: Oil-based products are the dominating fuels in the transport sector but alternative fuels are currently challenging the world-wide dominance. The large number of alternative fuels that are under development at present makes the future fuel-market impossible to predict. Scania?s ethanol project is associated with a number of uncertainty factors that are beyond the company?s control.

Concentration of protein in bovine milk is one of the most significant milk quality parameters, to a large extent determining the price for milk to the producer. Mastitis is a common disease among dairy cows, negatively affecting not only milk yield but also milk protein composition. Milk from mastitic cows tends to have lower cheese yield, negatively affected processability properties and sensory quality, due to changed protein quality and composition. Poorer milk protein quality would have an economically negative impact on dairy industry. Only few studies have investigated the short term effects of mastitis on milk protein composition.

Acrylamide (AM) is a commonly used monomer in the manufacture of polyacrylamide. In addition, AM has been found in heated foods that are rich in starch. The main dietary sources in Sweden tend to be crisps, French fries, fried potatoes, crisp bread, cookies and coffee. Un-fortunately, dietary intake of AM has in several studies been shown to cause cancer in ro-dents. Consequently, the compound is currently regarded as a potential carcinogen in hu-mans.

Purpose: The essay was designed to examine what impact an increased media concentration in the provincial press may have on the society in the future. I also had the intention to create a greater understanding of the concept of media concentration and how the media groups relate to the public interest. Method: The work with this study was conducted by using methods from the qualitative methodological arsenal through interviews with, for the study, relevant informants, but also through a case report on the Stampen Group. The selection of informants had a background and a breadth which secured the credibility in this survey. The starting point was taken in previous research via a deductive approach where I tested how existing theories match reality. Conclusion: After completing this study should be noted that all respondents believe we will see a greater concentration of ownership in the Swedish media market in the future, and that it will reduce diversity. However, there are steps to take which I believe can work well in theory but perhaps not always in practice.

 The purpose of this thesis is to study the education of newly arrived 16-20 year old immigrants and how their education in the towns of Södertälje and Malmö matches up with national inquiry into the subject.The research questions in this thesis are as follow: What type of documents shape the work with newly arrived students? What's the preferred development surrounding the education of the newly arrived students nationally? What does the latest study, which is a proposed reform of the Gymnasium system, say about the education of newly arrived students?How does the local work connect with proposals of national investigations? Do the cities take responsibility for evaluating the education of newly arrived students? From arriving to graduating, what does the road to graduation look like for a newly arrived student? What is the curriculum of a newly arrived student?The methods used here are studies of investigations made primarily by Skolverket (The National Agency for Education) and Myndigheten för skolutveckling (The Agency for Development of Education), studies of local documents such as annual reports of quality and promotional material for programs at local Gymnasiums (High Schools), and interviews with local persons in charge of shaping the work with newly arrived immigrants.This thesis has not used theory as a foundation for structuring the analysis, but postmodern theory and the use of three dimensional power inspired the thesis.The conclusions made focuses on the future of the education for these teenagers at large and makes connections between the national investigations and the local work with immigration education.In order for these teenagers to be allowed to join the Swedish national Gymnasium, they need to learn Swedish, and integration seems to be an important part of learning Swedish quickly. .

I två analyser av filmerna; Do The Right Thing av Spike Lee (1989) och Hemligheter och lögner av Mike Leigh (1996), har jag undersökt  hur och varför samhällsproblematik  som berör klass- och rasfrågan presenteras på film utifrån hur cultural studies teoretiskt förhåller sig till problematiska relationer mellan kulturella identiteter i USA och Storbritannien. Jag kom fram till att identifikationen av den kulturella identiteten var olika i respektive länder; USA och Storbritannien. I USA var rastillhörigheten utgångspunkten för den kulturella identiteten och i Storbritannien var det klasstillhörigheten utgångspunkten för den kulturella identiteten..

During 2007 the City of Stockholm installed five grid connected photovoltaic systems. The aim of this master thesis is to quantify the amount of produced energy and recommend routines to collect and analyse production data, to make production data accessible by the public and to gain experience for future installations.The total amount of produced energy until March 2009 is 227 000 kWh, with an annual rate of 150 000 kWh. The expected annual rate was 148 000 kWh.All system owners are positive about their plants and see economical benefits in scaling up such systems.The installations need very little attendance and maintenance, however it is recommended that an alarm function is installed for automatic feedback in case of a system failure. All future systems should be inspected during full operation to determine if the actual capacity is matching the installed capacity..

The aim of this examination paper is to investigate the use of linguistic feedback among male senior high school students. Two groups consisting of male students preparing for ensuing studies, and two groups consisting of male students taking vocational studies, was interviewed in four separate interviews. By comparing how these four groups used linguistic feedback in conversation noticeable differences has been identified. For example, the boys preparing for ensuing studies used linguistic feedback the most. Also, all interviewed groups used linguistic feedback the most when they agreed with each other.