Simulation means running a model of a system with suitable input and observing the corresponding output. Real-time environment simulation is a special kind of simulation used to simulate a control system's environment in real-time. This is done to test the control system before it is used in its real environment. In this project, computer simulation of a certain kind of environments, called track-based systems, is studied and a general model for track-based systems is developed. In this model, track layouts are represented by graphs, which is a flexible and extensible representation and a method for visualizing these layouts is presented.

This project was started within the Market-Design programme of Elforsk, with the aim of developing representative test systems of Swedish distribution networks. Using such test systems as a basis for reliability and customer interruption cost calculations makes it feasible to analyse the network tariff regulation of Swedish power  istribution companies. In particular, it enables studies of the incentives for companies to invest in system reliability. Until now, the available test systems are either not representative of Swedish conditions, or too small in scale and limited in function.Within this project we have created two test systems. In order to represent the diversity of actual Swedish distribution networks, we have created one test system for urban environments and another for rural environments.

Abstract The development towards an international accounting standard implies that Swedish groups of companies that are not quoted on the stock exchange can use a parent company perspective or an entity perspective while making their group accounting. The purpose of this study is to describe and explain the motives behind the groups of companies choice of perspective and to show how these motives agrees with the effect it has on the profit and loss account and on the balance sheet.The study includes four fictitious groups of companies based on real groups of companies. Every group of companies includes 1-3 subsidiary companies, where at least one is owned by the parent company with 51-70 %. Some assumptions were made before the consolidation.Relevant key numbers have been calculated according to both perspectives and then compared. A total of three semi structured interviews have been carried out two with representatives for the real groups of companies and one with a chartered accountant.

The purpose of this research is to examine some historical aspects of Robert Putnam?s thesisabout voluntary associations and social capital. According to a micro perspective theory ofsocial capital the trust and reciprocity required and created by associations is important toexplain the disparity between institutional performance and socioeconomic development ofsocieties. The social patterns governing this therefore set a precedent for the future. Using themutual sickness benefit societies in Sweden as variable for voluntary associations around1884, the essay discusses the possible links between social capital, associations and long termeconomic development.

The background to this thesis is the debate of the last decades within exegetics, concerning the so called "New Perspective on Paul". Starting from this discussion, the thesis is aming to investigateand discuss the function of Abraham in Paul's argument in Romans 4. This is achieved by, to start with, a thoroughly examination and analysis of different translations of Romans 4:1. Secondly, by trying how the translation suggested by Richard B. Hays can be motivated using a narrative perspective of interpretation emphazising the context of covenant history of the text, and thirdly, by examin and discuss other interpretations of the text and compare their ability to bring intelligibility to the text.

The implementation of a material requirements planning system is a complex and demanding task. There has been much research into what factors are important in such implementations, but seemingly very little about the links between critical success factors and management control systems. This thesis attempts, through a case study, to answer the question of how management control systems affect the implementation of an MRP system in ASSA AB, a Swedish manufacturing firm. Data is primarily collected through interviews. Theory regarding implementation success definitions, critical success factors as well as management control systems is presented.

The aim of this masters thesis is to, from a queertheoretical point of view, examine the possibilities to classify the subject homosexuality in three different classification systems. The three systems that have been analysed is the Swedish classification system SAB, the Universal Decimal Classification UDC and Dewey Decimal Classification DDC. The analysed editions are updates from the beginning of the 1970´s until today. The emphasis has been on how well the systems correspond to the changing society. We found several differences between the three systems, but also some resemblances.

The purpose with this essay is to study if the exhibition, Maria-Drömmen om kvinnan has a gender perspective and if it contributes to the history of art. The study shows what kind of women the exhibition illustrates and what kind of perspective it has. By telling about the black Madonna I also show that there is another representation of the middle age women in the Roman Catholic Church at this time that the exhibition not have included. The study is also going to illustrate the difference between a genderperspektiv in art and a women?s perspective.

This master thesis covers the development of an automatic tuning process for the existing speed controller for drive systems. The drive systems are resonant two-mass systems where a motor is used to drive a load connected by a shaft. The developed method relies heavily on system identification and the construction of a complete mechanical model of the process. With this approach, the common problem with poor load speed control that derives from measuring only the motor speed can be addressed and solved for a majority of such processes.The automatic tuning method has along with general test functions been implemented in a complete tool for automatic tuning, testing and performance evaluation and reporting for drive systems..

There are several energy systems in the Swedish society and to ensure the comfort and health of the citizens it is of importance that the different energy systems are functioning properly. District heating is one of these energy systems and many household depend only on district heating to warm up their homes. District heating is dependent on several processes where every step needs to function in order to deliver the produced heat to the end consumer. Previous studies have investigated the distribution of district heating and how to make customers choose district heating as their heating method. The supply of fuel to the district heating plant has not been studied as much, even though it is an important part of the whole system. This thesis is a part of the project NORD-STAR (Nordic Strategic Adaption Research), which has focused on climate adaption in the Nordic countries.

This thesis deals with subject-based hierarchical search-services on the World Wide Web. The purpose is to investigate how systems of this kind facilitate information retrieval through subject-based information seeking. Its starting point is taken from the study of texts and qualitative analyses of search-services on the World Wide Web. Important aspects and features of the Internet and the World Wide Web are explained as well. Three systems are examined: Mölndals Stadsbiblioteks Länkkatalog, Svesök, and Alta Vista.

In this essay I?m asking if the Scandinavian countries Sweden, Denmark and Norway use a third world perspective on gender equality in their development aid politics. A third world perspective on gender equality is a perspective that considers the special experiences and priorities of women in the third world. My point of view is that third world perspectives represent women in the third world better than western perspectives.To determine if the countries uses a third world perspective on gender equality or not I have examined the countries aid policies with a third world theory. The material that I have used is policy documents on gender equality from the three countries and my method is discourse analysis.My study shows that Sweden Denmark and Norway uses a third world perspective on gender equality to a certain extent.

The aim of this thesis is to, from a feminist point of view, analyse the Universal Decimal Classification UDC, which is an international and widely used classification system. A number of the larger classification systems and subject heading lists have during the last decades been placed in the limelight of various gender studies and the systems treatment of women has been criticized. With this examination of the UDC, I dont merely wish to identify shortcomings and advantages with the UDCs way to treat men and women. The UDC is also used as an example of how the gender problem can be identified and interpretated in classification systems generally. My analysis is performed with a theoretical foundation in feminist science theories about knowledge and norms, together with a linguistic perspective on valuing and emotionally tinged language.

Building Automation Systems in commercial buildings are often designed and installed by different contractors, using equipment and components from different manufacturers. The lack of an accepted communication standard has resulted in a few different standards. Many manufacturers of building automation systems only support one, a few or none of these standards, while developing proprietary system solutions. Regin, who develop such equipment, are planning to adopt an open communication protocol specially designed for building automation - BACnet. As a step in that direction this thesis was announced with the purpose to investigate the possibility to implement BACnet in one of their products and to gain more knowledge of the BACnet protocol.

Information handling has been a key issue for different companies for a long time. Electronic Data Interchange (EDI) is used to transfer different business documents from one company to another. This is done in such way that the information itself is separated from how this information is stored and handled in the companies internal systems. As different companies have different systems there is a need for a standardised format for this exchange. There is a big difference between EDI-systems based on what kind of EDI-standard is used.