This master thesis project at KTH is performed in the Mechanical and Aerospace Engineeringdepartment at University of Florida (UF). The thesis is a small part of a gas turbine researchproject where a vapour absorption refrigeration system (VARS) and a high pressure regenerativeturbine engine (HPRTE) are integrated together. The main objective is to build a computermodel of the VARS. The computer model is supposed to be used to analyse the off-designperformance of the VARS and should also be easy to integrate as a subroutine in a more complexsystem model. To model the VARS some knowledge of the absorbent/refrigerant mixture had tobe well known, in this case a mixture of ammonia and water.

The term "Project" have become a growing work model that exist in almost all bransches. A project is a work effort made over a finite period of time with a start and a finish to create a unique product, service, or result. Science shows that time limitation has an impact on humans to perform under pressure, which challanges the contributor to deliver. This report contains an examination about project management, both coming from scientific results and an external business. The point of this study is to bring ideas of improvement, which can make the work method more effective in this company..

This master thesis is commissioned by Permobil AB. The report describes thoroughly the developing process of an adjustable backrest for wheelchairs. The target group for the backrest are people that suffer from scoliosis or other spinal diseases. Because of insufficient pressure distribution usage of traditional backrests is not an option for them.The current solution has got a frame that is made by several adjustable links that is held in place by friction. Between the links velcro tapes are attached that is adjusts the depth.

This is a work about the relationship between cult houses and halls. In my essay I will go through four different places were cult houses and halls both exist. I will look at the findings and the landscapes were the settlements are located in. The places I have chosen are Lunda in Södermanland, Slöinge in Halland, Uppåkra in western Skåne and Järrestad in southeast Skåne. Because of that the cult houses and halls are occurring during the late Iron Age, it is during this time period that I will work in.

Reinforcement is of great importance to fulfill the dimensioned strength of a concrete construction. This requires that the work needs to be carried out with adequate results that neither endangers the workers or the safety of the construction. Progressive development of the planning phase, construction documents, and construction methods is in constant need since the technology constantly evolves.In order for contractors to be able to get acceptances from their quotations requires that they have to increase their working pace in order to be able to leave a quotation with a lower price than the competition.Due to the increasing pace the different parts involved in the construction process is subjected to time pressure. The design stage, construction documents, work preparation and the execution are all affected when everything has to be finished quickly. To avoid problems, it is required that all parts are able to deliver good quality solutions and results under the influences of time pressure, which is not always easy.

When establishing a groundwater protection area it is of great interest to be able to estimate the transit time of the groundwater from different places of the aquifer to the withdrawal well. These estimates can be uncertain due to heterogeneities in the aquifer. As a part of the work to develop methods for a more certain delineation of protection areas, a tracer test was performed in an esker located 25 kilometres NW of the town Uppsala.The purpose of this master thesis was to perform, describe and evaluate the tracer test. Travel times from the tracer test should then enable comparison against stochastic simulated travel times of the groundwater in the area.Three dyes (rhodamine WT, uranine and naphtionate) and a salt (NaBr) were used in the tracer test. The tracers were injected in four different wells located 25 meters from a pumping well.

Regionalization has become a catchphrase in European countries during the last twenty years with the establishment of the European Union. An ideational development has occurred during time towards emphasing more politicially powerful regions with the idea of new regionalism. Sweden represents a deviant case study, where regions historically have been politically weak and where Sweden has been characterized as a strong unitary state. The aim of this paper is to analyze the political debate in the Swedish parliament concerning the implementation of a stronger regional level (storregioner) during 2007-2010 and to determine if the debate can be characterized as a case of depoliticalization. The theory of depoliticalization have been introduced by Richard Katz and Peter Mair to explain why political parties through external pressure from europeanisation and globalization tend to become more consensual with similar political agendas, leading to a diminished the lef-right scale.

In coastal wetlands carbon/organic matter can be stored for long periods of time thanks to, among other things, the presence of water which slows down the decomposition. Because of this, restauration and management of such habitats have the potential to decrease the emission of greenhouse gasses and help mitigate climate. Internationally these environments are called ?blue carbon? ecosystems. In Sweden, alder (Alnus glutinosa and Alnus incanata) covered wetlands along the coast is a nature type that potentially could function as a ?blue carbon? habitat.

This is a work about the relationship between cult houses and halls. In my essay I will go through four different places were cult houses and halls both exist. I will look at the findings and the landscapes were the settlements are located in. The places I have chosen are Lunda in Södermanland, Slöinge in Halland, Uppåkra in western Skåne and Järrestad in southeast Skåne. Because of that the cult houses and halls are occurring during the late Iron Age, it is during this time period that I will work in.

This report contains a degree project made by the mechanical engineering students Lennart Andersson and Daniel Jansson. The project has performed in assignment by SOMAS Valves AB in Säffle. SOMAS are leading in development on control and on/off valves. To maintain this position they always want to improve their products. One way in this development is valves that are more tightened.The purpose with our project was to investigate another seat design on a HiCo (High Cobalt Alloy) seat to a SKV 150 PN 25 valve and compare this to an original HiCo seat.By modifying the seat on a ball valve we want to achieve a valve that leaks lesser then a valve whit original seat.

Vomb meadows is an area well knows for its rich bird life. During the 19:thcentury until mid 20:th century, the meadows were flooded annually in order toincrease the hay yield. The river Klingavälsån situated along the west side of themeadows, used to be a shallow river, meandering across the landscape. In the1940?s the river was straightened and made deeper.

Regionalization has become a catchphrase in European countries during the last twenty years with the establishment of the European Union. An ideational development has occurred during time towards emphasing more politicially powerful regions with the idea of new regionalism. Sweden represents a deviant case study, where regions historically have been politically weak and where Sweden has been characterized as a strong unitary state. The aim of this paper is to analyze the political debate in the Swedish parliament concerning the implementation of a stronger regional level (storregioner) during 2007-2010 and to determine if the debate can be characterized as a case of depoliticalization. The theory of depoliticalization have been introduced by Richard Katz and Peter Mair to explain why political parties through external pressure from europeanisation and globalization tend to become more consensual with similar political agendas, leading to a diminished the lef-right scale.

In this essay I investigate how the Roman colonization (around 50 BC to 400 AD) affected the Celtic religion. I inquire which operators that were behind these changes and under what circumstances they happened. I take a closer look on three places in Gaul and one place and one area in Britain. In my study of these places I see that it was the elite of the Celtic societies who together and under pressure from Rome made these changes. The religion and gods did not change; instead the ritual ceremonies changed to fit into something that Rome thought was right.

To guarantee the customers a job satisfactory executed Sydved has been certified by the ISO 14001 standard. One part of the certification is the standards of soil damages. The soil damages were over represented during 1999 and 2000. It was therefore a need to study the problem in order to see what could be done to reduces these damages. A filed study was carried out on 21 subjectively selected stands from the following five districts: Vänersborg, Falköping, Borås, Jönköping and Åseda. As the study is a descriptive study of the soil damages, their character and extension, only stands were tracks were reported were considered.

Regionalization has become a catchphrase in European countries during the last twenty years with the establishment of the European Union. An ideational development has occurred during time towards emphasing more politicially powerful regions with the idea of new regionalism. Sweden represents a deviant case study, where regions historically have been politically weak and where Sweden has been characterized as a strong unitary state. The aim of this paper is to analyze the political debate in the Swedish parliament concerning the implementation of a stronger regional level (storregioner) during 2007-2010 and to determine if the debate can be characterized as a case of depoliticalization. The theory of depoliticalization have been introduced by Richard Katz and Peter Mair to explain why political parties through external pressure from europeanisation and globalization tend to become more consensual with similar political agendas, leading to a diminished the lef-right scale.