Ericsson develops a new stripline directional coupler. Its design is described in appendix B and differs from the directional couplers Ericsson uses in current products. The new directional coupler will be used for transmission power measurement in future UMTS 3G base stations.The most important parts of directional coupler theory are presented. It is necessary to study this theory to understand how the coupler works and how it should be designed to get good performance.Optimal directional coupler termination component values to get high directivity and broad directivity bandwidth have been investigated.The trim screws trim ranges have been studied.A simple analysis of serial production performance when termination component tolerances are taken into consideration has been done.The resistance components reactive (inductive/capacitive) characteristics at 2.14 GHz have been analyzed.The directivity performance limitations of the directional coupler, when Ericsson?s band pass filter is connected, are investigated.Design changes leading to better performance are proposed.

The purpose of this study has been to examine what approach and experience pedagogues at pre-schools, with a limited amount of nationalities, have regarding cultural promoting work in pre-schools. The concept ?cultural promoting? mainly regards the children's cultural backgrounds. The first question formulation focussed on the what the concepts ?cultural promoting? and ?cultural diversity? meant to the pedagogues.

Nanotechnology, one of the most interesting sciences today will no doubt have an enourmous impact on tomorrow's society and industry. One of the most interesting nanomaterial that has been discovered is the semiconductor quantum dot (QD). This material shows interesting novel properties such as a size-dependent band gap, which is an effect caused by the quantum confinement effect in all three dimensions. Due to this phenomenon the absorption spectrum can be tuned to the desired value by adjusting the size of the QD.This thesis aims to investigate how the solvent ratio of H2O/Ethanol affects the optical and structural properties of copper sulfide QDs manufactured in a chemical synthesis way using modern microwave heating. The process of manufacturing QDs using chemical synthesis often involve a capping-agent to prevent the QDs from agglomerate into bigger structures.

Our society has become increasingly digitized, and all around us information flows constantly. Knowledge about valuing different sources of information, and not least the information itself, are becoming increasingly important. Media and information have come to play a big role in our society, and knowledge of media and information literacy becomes important to learn in school. High school students are at the beginning of their adult lives as educated citizens.In this study, we measured high school students experience of media and information literacy, during their three years in high school. Students answered a questionnaire, with questions based upon theoretical concepts in media and information literacy.

The character of a pattern carries through to the context in which it is placed. Each pattern tells a story. By interpreting our surroundingenvironments we become inspired, and the patterns in turn can become part of our own narratives. This project was fuelled by my fascination and desire to explore patterns. My method of exploration was based on prior knowledge of patterns and interior design.The question became how can I apply my knowledge of interior design to pattern design and how could I best translate the brief intoa language of colour and shapes? The aim was to develop my knowledge of pattern design as well as to use this opportunity to combine my design methods with those of a professional designer.

The aim of this thesis is to fill a knowledge gap regarding how online players use libraries, their attitude towards libraries and what they want out of future libraries. We see it as a problem that the library world of today does not have much knowledge about an audience that is so prevalent in society.The theory used in the thesis is Henrik Jochumsen, Casper Rasmussen Hvenegaard & Dorte Skot-Hansens model that divides libraries into four functions. The four functions are meetings, knowledge, inspiration and experiences. In the analysis we added a suggested fifth function, a digital space, giving the digital interaction and information needs of today´s society. The method was focus groups on online forums for gamers.

The primary aim of the current study was to gain increased knowledge about drivers' risk experiences. The study was based on questionnaires answered by 30 private drivers and 30 bus drivers, with 50% men and 50% woman in each group. The study revealed no differences, either between men and women drivers with regard to their experience of risk, or between the groups of private and bus drivers. Gambling is common within the private drivers group. Mistakes are common in all groups.

The main purpose of this thesis is to examine upper secondary school teachers? views of their students? information seeking practices and their perspectives on consider the concept of information literary. The theoretical framework consists of a sociocultural perspective and the empirical material has been collected through interviews with six upper secondary school teachers. The material is analyzed phenomenographically and revealed three practices. Social science teachers consider the library and librarian to be valuable resources for students? information seeking, particularly in view of information overload in society today.

This qualitative research overview consists of the State of knowledge about people with dual diagnosis. The focus is on what Psychiatry reform meant for people with mental disabilities. Author`s ambition has been to consolidate current understanding in the problem area. The purpose of the paper is to make an analysis of the State of knowledge concerning individuals within psychiatry with simultaneously addiction problems. The issues that will be processed are: what it means to live with dual diagnosis, how to coordinate cooperation efforts, and what is the evidence-based mode.

 The sawmill industry is a relative fragmented industry that is in an economic upswing andwith a hard competition. The customers have high demands on their suppliers and the highcustomer demand make it necessary for the companies to make a streamlining in planningand production. For that reason it is very important that the planning- and productionprocesses aren?t to complex and with a simple structure.The purpose of this report is to study and map out a marked out part of a planning- andproduction process, from adjust works to final delivery, at a company in the sawmill industry.Different methods have been used for the report, among others interviews and subordinatedmaterial.We have mapped out a marked out part of the planning- and production process at theCompany. This part we have studied, and we have analysed the process it self and otherthings connected to the process.We see the planning- and production process in the Company as complex.

Auditing demands knowledge in many diverse areas. To be able to provide all this knowledge it is necessary for the auditor to have access to persons with special skills. Through these contacts the auditor builds up a business network that brings support in the daily work. Our purpose with this study is to find out how auditor?s network in big auditing firms is organized and to show how they use their network.

This thesis treats the subject of a complete steady state and dynamic model of the VSC-HVDC covering both the AC and DC system-side of the converter. The topology of the model is recreated after the scheduled transmission line in the south of Sweden, called SydVa?stla?nken. The topology covers both a simple two terminal connection as well as a multi-terminal one. This model is to be implemented in the power system simulation program ARISTO.

In light of the recent scandals in Europe involving food labelling, this study will be focusing on food labelling. This study?s purpose is to investigate the extent of knowledge concerning labeling and presentation of food in the different food stores in Halmstad.The study was conducted out of our own interests with the guidance from the environmental health office. The study included nine different food stores of different size. The focus in this study was to verify how well five selected products follow the labeling rules.

The aim of this study was to investigate what formative assessment means and get information about how teachers? assessment practice in formative assessment can look like, based on five key strategies. I have observed five teachers in grade 4 to 6 during a week of their mathematics teaching. Formative assessment is assessment for learning and has the purpose to support students? knowledge development.

There is an ongoing discussion about the declining quality of the teaching in the swedish school. This essay is a contribution to that discussion. It suggests that a certain kind of dialogue is necessary for the quality of the teaching to recover, and thereby also the quality of the students? education.The author turns firstly to philosophers of dialogue and finds in their works views appropriate to use when facing the situation of the swedish school. With the ideas of Martin Buber the author redefines the students as creatures of relationships.