Arlanda airport is Sweden?s largest airport. The demand for comfort cooling of the airport?s buildings is high and is mainly provided by district cooling. District cooling is based on the same principle as district heating.

This examination work aims to describe how a supply chain around the biggest pellets factory in Sweden will be configured in a logistic perspective. The plant and associated infrastructure are in the building phase and will have production start on the 2 November 2009. The key question that is set in this examination work is to recognize the logistic processes which are essential for an effective flow of materials and information that link the source of supply with the ultimate customer. In order to get the answer, a flowcharting of these supply chain processes is required for understanding the pipeline activities such as input and storage of raw material, the production system and the output of pellets to the customers. The basis for this supply chain map is a model-based representation of these logistic processes and activities that are involved around the pellets factory.

The business potential of software defined radio (SDR) technology is studied by evaluating whether or not its characteristics correspond to those particular to a disruptive technology. The maturity of the SDR technology concept is illuminated by analyzing the opinions and perspectives of a selection of representatives for different stakeholders in the wireless communications market. Characteristics as, for example, the degree of consensus about the utility of SDR technology and the awareness of features and limitations are studied by application of the theory of technological frames. This theory helps us understand how and when technology evolution takes place. Finally we describe the value network structures of some potentially viable application areas for SDR and suggest some possible business opportunities based on SDR technology.This thesis is carried out as a case study and the research data is obtained from secondary sources, such as literature and Internet publications as well as interviews with people well experienced in the field of wireless communications.

The objective of this diploma work is to investigate a set of Multiple Input Multiple Output (MIMO) channel models compatible with the emerging IEEE 802.11n standard. This diploma work validates also advanced, innovative tools and wireless technologies that are necessary to facilitate wireless applications while maximizing spectral efficiency and throughput. MIMO channel models can be used to evaluate new Wireless Local Area Network (WLAN) proposals based on multiple antenna technologies. The purpose of this thesis is to investigate means of channel models and their implementation in different environments such as: Matlab, C++ and Advanced Design Systems (ADS). The investigation considers also a comparison between the channel models based on theoretical data and parameter setup to the channel models based on statistical characteristics obtained from measured data.

The purpose of this thesis is to analyze and propose improvements to the current procedure for cost estimations of purchased maintenance work at Banverket, the Swedish rail administration. This governmental institution is responsible for the procurement of maintenance services for the country?s railroad network through open tenders. Due to the generally low number of contractors, it is particularly necessary to establish accurate cost estimates in order to assess the offers and ensure that a fair price is being paid to the suppliers. Several flaws associated with the current practice are identified and analyzed according to cost accounting theories.

The purpose with our essay was to examine what favourable factors there are for women to get out of drug abuse and from a gender aspect interpret how these factors are used in the treatment of female drug-addicts, regarded from the treatment personnel view. The questions we have focused on are: What are the favourable factors for women in the way out of the addiction. How can the use of favourable factors be interpreted from a gender aspect. In what way is the knowledge about these favourable factors used in the drug abuse treatment.To fulfil the purpose whit our examination and to get answers to our questions we performed an explorative examination and applied a qualitative method in the form of a half structured interview with five persons.The main features of the results in our examination were that unisexual treatment, the group and the friendship between women, children and pregnancy and professional and private social network were considered as the favourable factors for the women out of their addiction. Certain factors were used in the treatment as a way to socialize or resocialize the female drug-addicts to predominant social models of how a woman should be like..

The aim of this essay is to investigate the implementation of The Social Orientation inSweden. The Social Orientation is a part of the new, one year old, establishment law and isaimed at all newly arrived refugees and immigrants. The aim of the law is to help establish allnew arrivals into the Swedish society by providing knowledge about life in Sweden. Theeducational program is at least sixty hours long and covers: the public authorities in Sweden,laws and regulations, work and education, healthcare, children and family issues in a person?smother tongue.In order to achieve my aim I have chosen two questions: How has the law been implementedin Swedens three counties: Stockholm, Sörmland and Uppsala? What conditions are there fora successful implementation?In order to answer these questions I have used the traditional, ?street-level bureaucrats? andnetwork perspectives and issues for my study of implementation.

The Smart Grids development is driven by forces concerning safe electrictransmission done in an energy efficient way. Vattenfall Eldistribution AB has a visionto transform their electricity network into Smart Grids. To invest in Smart Grids theyhave a need to show their customers what advantages they will get from thedevelopment. This led to the formulation of this dissertation project where the aim isto identify products and services related to Smart Grids that will increase thecustomer satisfaction for Vattenfall Eldistributions private customers.The project started with a mapping of existing products and services on the Swedishelectricity market. From the mapping several development possibilities for VattenfallEldistribution were identified.

The main purpose of this study was to examine how people who have felt mentally bad, describe their subjective experience of what leads to a mental well-being. The overall research questions were; how does the individual define mental well-being, how does the individual describe the turning-point during her tough period, and in what way does the individual consider that her own effort has influenced her well-being? In order to answer these questions, qualitative research interviews were conducted with persons who?ve felt mentally bad and who?ve got some kind of professional help, and who think that they have a mental well-being today. The empirical material was analyzed from a theoretical resilience perspective. The study?s result showed first of all, that there are different ways to define well-being.

The rural development programme is a tool for promoting sustainable development in the Swedish countryside. The master plan should, for example, give directions for the national interest and describe how it will follow up national and regional targets such as the EU's environmental quality standards. Because the municipality has considerable freedom to formulate the plan in its sole discretion, and that it contains the municipality's political vision, it is also feasible to make a discourse analysis of the plan text.In discourse analysis, including articles and documents written by Rural Network Working Group on land use planning to be included. The purpose of discourse analysis is to see if there are differences in the way rural areas are described and if there are any flaws in how the designer interprets the rural development programme. Furthermore, the analysis result in tools that are adapted to the standards we create and choose.The standards we have are being designed based on our values, which differ.

This report describes the design and construction of a prototype that automatically aims a microwave link towards a target. The link, that is located on a mobile aerial mast, is used by Saab Training Systems as a part of an infrastructure network. The report also discusses the development of a GUI that communicates with the control unit by Bluetooth.The control unit, called Pan/Tilt-controller, controls the position of the link by stepping motors. One motor controls the azimuth angle and the other one controls the elevation angle.By a GUI the operator enters the coordinates on its own position and the targets position. Hereafter a bearing is calculated and it will be sent up to the control unit.The control unit will sense its own direction by a magnetic sensor that works as an electronic compass.

Nätverksarbete har växts sig allt starkare under de senaste trettio åren i Sverige. Arbetet syftar till att se individen i sin helhet. Syftet med studien är att undersöka hur socialsekreterare och klienter vid barn- och ungdomsenheten i en specifik kommun upplever deltagande i nätverksmöten. Syftet är även att undersöka vilka positiva och negativa aspekter gällande nätverksmöten som socialsekreterare samt klienter lyfter fram. Metoden som använts för att besvara syftet är kvalitativ.

This essay deals with the subject of communication through Facebook. In this survey we studied 100 youths from Karlstad and their communication habits and behavior patterns on Facebook. The social network site Facebook has since its start in 2004 made a mark in modern communication. Today in 2010 the site has more than 500 million users. This paper wants to study what happens to other types of communication.

Populärvetenskaplig sammanfattning: Planera dagsutflykten och upplev mer av Island. Island med sina aktiva vulkaner och stora glaciärer är ett populärt turistmål och antalet turister ökar år från år. Flertalet av de 350 000 utländska turister som årligen besöker Island anländer med flyg till huvudstaden Reykjavik. Från huvudstaden anordnas dagsutflykter genom en rad olika researrangörer. Man kan även planera en dagsutflykt själv, och köra med hyrbil.

The purpose of this paper was to examine how young parenthood is represented by the professionals and their thoughts and experiences from meetings with the young parents, and how the professionals work with this group of parents. As professionals we refer to those who work with young parents, and the definition of young parents are parents in the ages 15-24. The paper also discusses what needs these parents have, and what kind of support the society offers, according to the professionals. The method we worked with was interviews and we interviewed six professionals to find out how the professionals looked upon the young parents and their situation. Earlier research has stated that young parenthood is associated with many risks and disadvantages for both the parents and their children.