A district heating plant has the advantage that it can take advantage of the waste heat from industries and use of cheap fuels to produce heat. But for the long term is competitive requires that energy is also saved in district heating plants. One way to save energy in a district heating system is to increasing cooling to the return temperature. This leads to less power needed to drive the distribution pumps,  and that more energy could be extracted from the same amount of fuel by an improved flue gas condensation.In Karlskoga the return temperature into the district heating plant is high. They would therefore reduce the return temperature in order to extract more energy from the flue gases.

In this study, we have explored a new area called ?gamification? ? a word and concept that was first introduced on the Internet autumn 2010. Gamification concerns integrating game design, with emphasis on game mechanics and game dynamics, into non-gaming contexts ? such as marketing. At its basic definition, it concerns the process of transforming all kinds of activities into games.

This is a qualitative study that explores how bilingual children develop their language through play. The study is based on observations and interviews conducted in a preschool located in a multicultural area of Stockholm.The purpose of using two qualitative methods; observations and interviews, was to get a bigger picture of the study area. The results of the study, illustrated through observations and interviews that I have conducted, shows that the game has great role for bilingual children's language development. Furthermore, the results show that the informants are aware of the importance of play for bilingual children's language development especially when they are talking about investing in the promotion of children's language by using different methods and materials in their pre activity for various games and activities.One of my conclusions is that bilingual children learn the language during both free play and structured play especially when educators are present and aware of the activities that they perform. It is also important to see children as individuals to cover all the needs of children at different activities.

American football is a well-known sport in America. In addition to the design and rules of the game and the surface it is played on, there are also other differences that are not directly visible. One difference noted in this study is how the teams in the game provide players. Each team has a board of directors together with the team's leadership and they will determine which players are most suitable for the team. These players are recruited to the team after graduating from a U.S.

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.

This essay covers computer gaming as seen from a perspective of gender theory. The main purpose of the essay is to examine women?s relationship to computer games, and more specifically women?s attitudes to the games they play. The theoretical basis for this essay is sprung from a hermeneutic perspective. The empirical basis for analysis consists of two in depth interviews and game analysis of the two computer games Counter Strike and Final Fantasy XI.

Ericsson?s factory in Kumla, Modules Kumla, became a hub for radio modules and micro base stations, which enables mobile communication through radio base stations, in 2004. Because of this the factory focuses more on the logistics operations. This has led to a need to be able to plan the capacity for the materials handling system. This master thesis has therefore been performed at Modules Kumla to develop a capacity calculation model for the material handling flow during the autumn of 2005.The work has contained a mapping of the material handling flow regarding to which activities was performed and how much time they consumed.

Together with NCC and Sweco we measured the air-flow on a semi-detached house in Jönköping. When a pressure measurement is made, the house gets exposed to over- and under pressure. This is done in order to examine the houses climate shell. The climate shell of the semi-detached house we tested exceeded the required air thickness in BBR-2002, hence, measures have to be taken.This report also displays the importance of building air thick houses and what consequences a non air-thick house can have for the ones residing the house. A discussion of different measures is on for the addressed problems with the flow-measurement and the alternative construction-solutions.Furthermore we have described in this report of how to account for the performance of the air pressure, what kind of equipment we used and how we came up with the results.

Tobii Technology AB is a global leading company in eye tracking. The technology is a part of acomputer screen called an eye tracker. It enables computers to follow eye movement whichfurther make it possible to control the computer by only using your eyes.The mission was to develop an arcade game for eye controlled games that Tobii can use in theirmarketing or as a tool when doing researches about the interest in the technology amongst gamecompanies. The product realization involved designing an innovative, functional and futuristiccase which gathered the existing hardware and software to build the final prototype. In order toattract users it was important to focus on the visual expressions.Initially, the project started off with an information retrieval which contained interviews, fieldstudies, tests and literature studies.

The purpose of this paper is to investigate how gender and sexuality are made in the videogames Prince of Persia and Fable II, and more specifically to look at possibilities and limitations for the construction of gender and sexuality in these games. I understand videogames as an interactive media form that differs from other types of media like film and literature. It is a media form that depends on a player to be played. At the same time it is constituted by rules of how it can be played. I have analyzed my material by a method called close-playing.

 This study was conducted in autumn 2008 on the Company AB, which is currently in a growth phase. The company manufactures hydraulic systems for the heavy vehicle industry and has annual sales of approximately 250 MSEK with 165 employees.The rapid growth and unchanged planning is the starting point for this report. It all began in 2005 when the company received an unusually large order. During this period, the first priority was to satisfy customers and all other focus was disregarded. This has primarily resulted in a messy production and long throughput times.

SVENSKA: Vårt kandidatarbete gick ut på att ta reda på om det var möjligt att utveckla ett kort spel i hög teknisk kvalitet och ändå skapa ett djupt intryck på spelaren. Under projektets gång utvecklade vi, med hjälp av UDK (Unreal Development Kit), ett skräckspel i 3D till PC vid namn The Horror at MS Aurora. För att erhålla den höga tekniska kvaliteten som vi var ute efter användes metoder som räknas som standard för stora speltitlar på marknaden: Animationer spelades in med Motion Capture och musiken skrevs med en full symfoniorkester i åtanke. Innan produktionsfasen tog vid gick alla gruppmedlemmarna igenom en research-fas, där var och en satte sig in i de områden som skulle komma att vara aktuella under produktionen (d.v.s. hur UDK fungerar, musikteori och orkestrationsteknik, hur man arbetar med Motion Capture-data o.s.v.).

Syftet med denna uppsats är att utreda vilka faktorer som påverkar de svenska småhuspriserna, och i så fall hur och i vilken utsträckning. Med stöd av tidigare studier som enhetlig pekar ut bolåneräntan och disponibel inkomst som de faktorer vilka har tydligast inverkan på fastighetspriserna i Sverige, utökas de förklarande variablerna i denna studie med hjälp av en stock-flow modell. Tidsseriedata från 1993-2013 behandlas för enhetsrötter och kointegration för att skattas i en regressionsanalys i form en "Error Correction Model", med avsikten att utreda både ett kort- och långsiktigt samband. Resultatet bekräftar reporäntan och disponibel inkomst som två viktiga faktorer för att förklara det långsiktiga sambandet med priserna på småhus i Sverige, tillsammans med ytterligare faktorer såsom BNP, hushållens skuldsättning och arbetslösheten. På kort sikt är dels den historiska utvecklingen av huspriserna en nyckelfaktor, men faktorer som disponibel inkomst, ränta, BNP och hushållens skuldsättning är också viktiga krafter för att förklara småhuspriserna.

Handling product returns has become a critical activity for organizations as the volume of gods flowing back through the supply chain rapidly increases. Few research studies have published specific empirical data concerning the reverse logistics practices of companies. Information technology and information support has long been recognized as a competitive weapon ? capable of enhancing company performance and achieving efficient reverse logistics. Reverse logistics is very unlike the forward, as it is more reactive and also has less visibility.

Syftet med studien var att ta reda på hur gymnasieungdomar upplever utomhuspedagogiska moment i undervisningen. Det är en kvalitativ undersökning gjord vid Bernadottegymnasiet i Stockholm. Studien baseras på deltagande observationer under drygt två fältdygn och på semi-strukturerade intervjufrågor med tolv elever, i tre fokusgrupper. Resultatet visar att elever upplever utomhuspedagogiska undervisningsmoment positivt.