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.

This master thesis was a continuation of a previous study in the diesel exhaust characterization, which is part of the academical work embedded in the EMIR-1 project. The main objective of this thesis work was to finish the installation and make the proper modifications of the particulate mass measuring system located in one of the engine test cells at KTH, in order to be able to measure the mass of the particles from the exhaust of diesel engines.This experiment requires a diluted flow sample from the exhaust that should be sent to the device that makes possible the measurement of particle mass, called TEOM. In the first stage of this project, the objective was to study and make the proper modifications in the existing KTH diluter because there were several problems to obtain a constant dilution ratio from it during tests.This modifications were made and it resulted in a great improvement in the maximum inlet and outlet flow that this diluter can handle. Therefore another modification is proposed for controlling the inlet exhaust flow so it will be possible to regulate the dilution ratio and make it constant along a wide range of engine loads and speeds.The second and most important stage was to make particulate mass measurements possible by analyzing the frequency signal from the TEOM device. The idea was to obtain the frequency of oscillation from the tapered element in the TEOM, and therefore with the proper correlations, be able to predict the particulate mass concentration in the exhaust flow from the engine.An electrical problem in the TEOM circuit was detected and corrected, so the signal that carries the frequency from the TEOM can be analyzed properly.

Ålderspensionärerna kommer att öka kraftigt under de kommande åren. För arbetsgivare är det betydelsefullt att planera och vara medvetna om att kunskapen och erfarenheten som framtida pensionärer besitter kommer att försvinna om de inte tillvaratas, där ett tillvägagångssätt kan vara kunskapsöverföring. Undersökningens syfte var hur framtida pensionärer upplever tillvaratagandet av deras kunskap och erfarenheter och hur det påverkade deras framtidsinställning. Fem framtida pensionärer och en personalansvarig intervjuades. Datamaterialet analyserades genom induktiv tematisk analys.

The profit a company makes is dependant of its employees which means that their competence is important for the company to perform well. The middle manager has a central position in the organization and is expected to take on different roles. This probably puts a lot of demands on the middle managers and their competence. We want to contribute with a comprehension of how learning, competence and needs for competence can look at a middle management level. Furthermore we also want to find out what kind of strategy for competence development the middle managers want the company to use so their competence development can be facilitated.

The purpose of this study is to examine how pre-school teachers think about the importance of circle time in regard to the child's language and social development from a sociocultural perspective. Furthermore the study will include what role the educators? have during the circle time.To answer our purpose we have chosen the following question:What is the role of the teachers in the circle time?What are the teacher?s thoughts about the circle time?s importance to children's social development?What are the teacher?s thoughts about the circle time?s importance to children's language development?The study is constructed on qualitative methods, where we conducted structured interviews with six preschool teachers and observed their circle time to collect our empirical material. The study is also based on Vygotsky's sociocultural perspective which says that all learning takes place through relations and interaction with other people in the cultural context you are in. The results have shown that pre-school teachers are aware of the circle time?s importance to children?s development, and purposely plan the circle time to give children the opportunity to develop both socially and linguistically skills..

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.

The purpose of this essay is to try to understand the relationship between the structures of modern working life and the development of burnout. By using the method of qualitative interviews we wanted to see if the Effort-Reward Imbalance Model could be applied to the data we had collected. Two questions have been highlighted in our research:        ? Is it possible to establish a relationship between the structures of modern working life and the development of burnout among the subjects interviewed?  ? Is it possible to explain the development of burnout among our interviewed subjects through the Effort-Reward Imbalance Model?    Our theoretical frames are the general theories of the modern society and the modern working life as developed by Anthony Giddens, Ulrich Beck and Zygmunt Bauman. We have also used Johannes Siegrist?s medical-sociological Effort-Reward Imbalance Model (ERI-Model).

In the literature it is not possible to find something about Swedish UN Military Observers (MO) experience of life is changing after their service. The aim of this study was to investigate if this has happened. The selection is of type ?snowball?. Interviews were made with twelve MO by telephone, both male and female.

EN BILD SÄGER MER ÄN TUSEN ORD? Idag finns det gott om studier som behandlar området digital kommunikation. Det är ett omfattande ämne och det har forskats mycket inom det. Det finns massvis med litteratur och vetenskapliga artiklar som beskriver olika digitala kommunikationstekniker. Studeras dessa inses det ganska fort att de håller en hög och komplex nivå.

The point of interest in this study is to identify whether ethnicity is a correlating factor regarding Hungarian immigrants? development of identity in Sweden. The general aim is to increase knowledge and understanding of the conditions for the Hungarian ethnical group in Sweden to reach self-realization. The main question is whether the general view of the background of this ethnical group has a connection to their self-realization in Sweden? Since the study involves a whole group of minority, a limitation has been made to adults living in the city of Halmstad, Sweden.

Transcending sound design is possible. There are unseen possibilities and a great potential for improvement and development in sound and music design ? but there is a great difficulty penetrating the obstacles that lies in the way for such development to take place and to exist. The difficulties in being negotiable and productive lies more within the limits of the audience it has to gain, than in itself. It is as though music and sound design has to evolve very slowly, in an almost evolutionary style; one step at a time, to be accepted.

Abstract  The purpose of my study is to see how pedagogues describe their work with language stimulation in preschool. My study is a case study. Through qualitative interviews and observations with three pedagogues I want to se how it works in preschool.     My research question was:How do the pedagogues describe their work procedure with language stimulation?  My result of this study is that language stimulation always is included in all preschool activities.

PurposeThe purpose of this thesis is to investigate the market of pedagogic consulting and how the customers look upon these kinds of services and what the consultants think about the market. The following five questions were investigated:What is the situation of the market of pedagogic consulting?-          What needs and what demands are there of pedagogical consulting services? -          What are the economic possibilities for schools and municipalities to buy professional development and consulting services?What do schools and municipalities think about their needs and what do they think about buying professional development from consultants?-          How are the professional development offerings of the consultants recieved by schools and municipalities and is there a difference between the private and public sector of education? -          What impact could professional development have on schools?In what way is the marketing for pedagogic consulting done?Method In this study I have chosen to have a qualitative approach with an abductive perpective. I made these choices to get closer to what I wanted to investigate. Through the abductive methodology it was possible to go between theory and empirics.

 The purpose of this thesis was to explore how the ideological self-image of the biggest Swedish governmental party, Moderaterna, has developed between 1993 and 2011. The second purpose was to compare this development on a fundamental ideological level, with development on the operative ideological level. This was to be made by qualitative analysis of the party?s ideological programs and election manifestos. Hopefully this would expose a pattern of the party?s ideological development. The findings of this thesis however, suggested that while the ideology on the fundamental level had radically changed, the ideology on the operative level has been characterized by continuity.

Augmented reality is a technology thatcombines the perception and interaction ofvirtual objects with the real world. Itcan allow a user to visually see computergenerated models and informationinteracting with the real world through ahand held device such as a tabletcomputer. This opens up a range ofpossibilities, especially in theconstruction sector. A construction siteis permanently changing and the need forprecise and updated information iscrucial. The ability to enhance the realworld with virtual objects and informationmay make many plans printed on paperabsolete.This report describes how workers in theconstruction sector would benefit fromusing augmented reality on a tablet innumerous situations and the technologyneeded to achieve AR on a tablet.