Heat and power stations are often in need of optimizations. A simulation model is a tool for findingways to optimize the plant. The scope of this diploma work is to develop a simulation model ofBoiler 5 at Mälarenergi AB. Boiler 5 is a circulated fluidized bed boiler that was taken into service inyear 2001. Among the included parts in the boiler are cyclone, convection part andINTREX-chambers.

The purpose of this study is to explore the differences and similarities regarding the causes of and approaches to bullying among a number of girls and boys in third grade in two schools. One of the schools is in a mono-ethnic area and the other in a multi-ethnic.The purpose isto compare the results between the schools and the questions proposed are:What is the reason for the bullying?What are the differences and similarities in existing opinions on the practice of bullying?What are the differences and similarities of students' opinions on bullying in a mono-ethnic and in a multi-ethnic school?I have chosen to use gender and ethnicity theories and the study was conducted through qualitative group interviews. The results have shown that boys' explanations for bullying are more aggressive than girls, although approaches to bullying were more related with violence among boys. The multi-ethnic school uses more direct bullying compared to the mono-ethnic school where indirect bullying occurred more often.

The new Library Act came in force in January 2014, external changes such as globalization and information technologies had changes the way libraries work and the new law aimed to reflect this. The aim of this study is to examine ideas surrounding the mission of the public library as it appears in the referral statements that three state agencies and three interest organizations gave to the ministry publications series Ds 2012:13. The questions this thesis examines are: what ideas can be discerned in the respond-ents' opinion regarding public library's mission? How is the con-sultation bodies? way of looking at public library's mission to-wards the government's approach? In this thesis the empirical ma-terial has been analyzed using a theoretical model called The four spaces ? a new model for the public library designed by Casper Hvenegaard Rasmussen, Henrik Jochumsen and Dorte Skot-Hansen. The model consists of four different goals and four differ-ent spaces and can be used as a basis for discussions about the public libraries role in society.

It has become more common for organization to operate a lot of projects at the same time. These projects affect each other, either in way of resources or technical. Projects in a multi-project environment depend and affect each other, and in most cases they rival about resources, decision-makings and priority. To lead a project portfolio with several projects is a major challenge. The most common problems that occur are vague objective, unclear working conditions, resource shortage and problems of priority.

How do museums work with plurality in their organizations and in the production of exhibitions and other activities? This paper examines how civic museums, provincial museums and state museums work with plurality from a perspective of culture policies, particularly in relation to the government bill Tid för kultur, issued by the Swedish government in 2009.All together I examine 25 museums and their efforts to include marginalized groups in their activities and exhibitions. To do so I have studied four possible measures that are available for the museums. This includes the following: projects that pay attention to a marginalized group or their living conditions; projects that are specifically created for a marginalized group; projects that include a marginalized group in the museums preparations; and projects were museums give full responsibility to a marginalized group. I have also examined how plurality have been presented ? as isolated cultures and cultural expressions or as hybrids and interchangeable phenomenons ? and to what extent the museums are ready to involve marginalized groups in their physical environment and in their exhibition and activity programs.

This thesis aimed to, with the help of a case study, investigate and discuss state responsibility towards climate refugees. The state of Tuvalu was selected because of their vulnerability as a low-lying island state. This was fulfilled by on-site study how the state Tuvalu acted to climate threats, determine if the future migrants from Tuvalu can be counted as climate refugees and find out if they are by that definition included by the UN Refugee Convention. The result indicated that the state of Tuvalu is adapting to climate threats, that in the future the population can be seen as climate refugees, if they are forced from their homes due to climate change, and that they, despite that definition, can not be included by the UN Refugee Convention. The study also indicates a need for greater international protection of climate refugees by, for example, an expansion of the UN Refugee Convention so that these vulnerable people do not fall into oblivion due to a question of definition..

Communication is an important part of any multi-agent system. There are different ways of communicating and they have different effects on a multi-agent system. This project describes and evaluates two different ways of communication, implicit and explicit. To compare the two methods, two experiments have been executed. The result of the experiments have been compared and discussed.

In this essay, I investigate Swedish possibilities to influence the Common Agricultural Policy of the European Union (CAP). After having summarized my findings, I try to explain the structure of influence by using Multi-level governance theory.Ten years have passed since Sweden joined the Union, and many changes have followed in the agricultural sector. By investigating the small country of Sweden's possibilities to influence CAP, I hope to be able to get a notion of the possibilities to influence the EU in general. The essay examines four possible paths for agricultural interests to influence the policy process in Brussels:* Through elected representatives of Sweden in the European Parliament, the Council of Ministers and in the Swedish Parliament* Through subnational institutions, such as the local authorities and regional representatives.* Through the Swedish Agricultural Office* Through the Swedish pressure group within the agricultural area, LRFThese four groups all have very different channels to the policy process on agricultural issues. The differences are mostly in terms of decisive power or advisory power and institutional contacts or lobby contacts.

Energy is an important issue in the current world which significantly affects sustainability and development. Energy generation and use are major sources of CO2 emissions which is one of the most important driving factors in global climate changes. The amount of energy used in house hold section can lead to estimation of the amount of CO2 emitted within this section which subsequently would be a ground to better management and maintaining a sustainable society. This study which is a bachelor?s project in sustainable energy, deals with estimation of CO2 emission from different types of residential houses in Sweden. An extensive literature review on energy use in Sweden by different residential sectors has been conducted.

The purpose of this project was to produce signal relay stations that could receive information via 2.4 GHz radio and relay the information to a designated target station. If a relay station was located outside of signal range for the target station it was supposed to utilize other relay stations to transfer the information to the target station, so called multi-hop.The would-be application of the relay stations was orienteering. When an orienteer punches a checkpoint the signal stations would relay information of who punched the control, when it was punched and the checkpoint that was punched to the speaker tower in the goal area.The work resulted in prototypes which fulfilled the statement of purpose and was tested at an orienteering competition with satisfactory results. The performance of the prototypes was tested and found adequate for the would-be application..

The aim of this essay is to describe the historical development of the intercultural teacher training program at Södertörn University in Stockholm. I have also examined how the intercultural teacher training program was started, how and why it became intercultural and how the people in charge of the development of the teacher training program discussed intercultural science. The teacher training program has been an active part of Södertörn University since 1998, but it became intercultural in 2002. I have studied these questions through documents from the Södertörn University archives and literature by the funders of the education. The study shows that the university profile, ambitions and motives have been a key factor in the decision to make the teacher training program at Södertörn a multi-cultural one..

The purpose of this report is to evaluate different methods for identifying states in robot models. Both linear and non-linear filters exist among these methods and are compared to each other. Advantages, disadvantages and problems that can occur during tuning and running are presented. Additional measurements from accelerometers are added and their use with above mentioned methods for state estimation is evaluated. The evaluation of methods in this report is mainly based on simulations in Matlab, even though some experiments have been performed on laboratory equipment.The conclusion indicates that simple non-linear models with few states can be more accurately estimated with a Kalman filter than with an extended Kalman filter, as long as only linear measurements are used.

The main purpose of this study is to investigate the productivity effects of multiple tree handling in thinnings. Other important elements have been to investigate in which extent multi-tree handling is used in stands with different stem volumes and the impact of collecting partially delimbed fuelwood assortments has on harvesting performance. The study is based on data from thinnings in Sydved and contractors' operating activities. Collection and compilation of operating schedules, number of stems and surveyed volumes from several contractors and a large number of executed orders underlying the results. Multiple tree handling is used to a much greater extent at lower average stem volumes. Prediction models for productivity of the multiple-tree handling harvesters in the study differ from the productivity models for single-tree handling. In the model developed in this study productivity is not as dependent of stem volume as reference models.

The thesis deals with three document retrieval models based on logic: the Boolean model,the fuzzy model and the Van Rijsbergen model.In Chapter 1, the author presents the purpose of the thesis. This is to give the logical foundationof the models, to describe them and to examine them critically. In Chapter 2, some importantnotions in document retrieval are presented. Chapter 3 is devoted to the Boolean model, Chapter4 to the fuzzy model and Chapter 5 to the Van Rijsbergen model.These three chapters are organized in the same way. First, the logical foundation of the modelis given.

The intention of this study is to perform a content analysis based on a theoretical framework founded on multi-level governance, MLG. The thesis examines the formal changes within employment politics between 1999 and 2004 (Sweden´s action plan for employment) and 1998 and 2007 (the spring budget proposition). I will investigate how multi-level governance has effected the Swedish employment politics. Furthermore, the purpose of the thesis and the questions under consideration are: How have the formal structures within Swedish employment politics changed since Sweden?s admission to the European union, particularly during the periods 1997-2008 and 1999-2004? And: How do the changes in Sweden, together with the European union directive concerning employment, coincide in the so-called employment strategy?While performing the analysis I have focused on multi-level governance.