The system tungsten-oxygen has potential of being suitable for decorative coatings since ceramic coatings are often hard and wear resistant, and since modulations in oxygen content or incorporation of small ions could give bright colours. The aim of this report was to investigate the relationship between process parameters and  the properties of the films, with the wear resistance being of special interest.Samples with tungsten to oxygen ratios in the range of 100:0 to 25:75 at% were made using reactive sputter deposition, either with constant gas flow, or gas flow controlled by optical emission of the plasma. The hysteresis of the system, which means that a certain gas flow will cause different pressure and/or target voltage depending on in what way the flow is reached, makes it interesting to control the process where the system makes the steep change from metallic tungsten to ceramic tungsten oxide. This is difficult and thus requires precise control equipment.The samples were analysed using X-ray diffraction, X-ray photoelectron spectroscopy and an empirical wear test suitable for small components like cell phone cover for example, in order to characterize the structure, composition and wear resistance of the coatings. The results could be divided into three groups: (I) tungsten-like, with very low oxygen content; (II) mixed phase and (III) tungsten oxide like, with oxygen content close to 75 at%.

This thesis work has been performed at the department of diagnosis and dependability at Volvo Car Company, Torslanda. The background of this project is based on interest in ascertaining how different factors possibly can affect a diagnosis method, which has been developed to find leaks in the fuel tank and evaporation system. According to the OBD II requirements leaks with an orifice diameter larger or equal to 0,5 mm, must be detected. The idea of the diagnosis method is to create an over pressure in the system with an air-pump. The current through the pump is measured and correlates to the power consumed by the pump.

Automatic rumination measuring can be applied as a health indicator in dairy farming but is also highly desirable for research purposes. This study aimed to validate the technical functionality of the product RuminActTM, which employ acoustics to monitor rumination duration. The time budget of high yielding cows was studied and possible differences in rumination time between 13 rations were interpreted. Further the study examined what affects daily rumination and rumination efficiency. The validation was performed with direct observations that were compared to the automatically recorded rumination durations.

This report is written on commission by WSP Acoustics. The report studies the outdoor sound levels on school yards in Stockholm. The questions given by the company to be answered was what are the actual sound levels at diffrent school yards with low traffic noise and how can you construct a facade element that reduces the sound level from the outside and meet the indoor requirements. Mesurements for four hours was done at eight schools set north and south of the city centre. The measurement period included one school break and one lunch break.

As a part of the fight against the global warming the energy production needs to be more efficient and redirected towards sustainable options. One alternative is cogeneration, which means that electricity and heat is produced in one plant. The purpose with this survey is to examine if there are any commercial available combined heat and power techniques, based on combustion of solid moist biomass, which are suitable to small-scale applications. The technique must be able to produce between 2 and 10 MW thermal and the heat demand is a Swedish district-heating system. When already published reports had been studied, the Organic Rankine Cycle (ORC) was chosen as the most suitable technique.

The society today, reflects a high welfare, where the human being has a better financial position than before. This has generate that more money is spend on pleasure and events. A result of that can be the development of a new line of business; The industry of experience.This kind of branch is fast growing in the Swedish labour market. The characteristics of this branch are, depending of trends, continuous variations and integrated education.A new phenomenon within this branch is ?Centre of experience?.

This thesis project has been written and accomplished in cooperation with HABO AB. The objective of the project was to develop a standard stated packaging system. The background to this is that HABO is not pleased with the system currently in use. The system which HABO is currently using consists of to many sizes. The largest benefit of a standard stated system is that it becomes much easier to organize the packaging with the aid of a computer program.

Åfors glasswork was a company which started in 1876 and closed in 2012 due to the bad economical situation in the company. After its closure, the glasswork left behind contaminated soil with different concentrations of heavy metals such as, arsenic from arsenic trioxide, a chemical used to remove bubbles during the melting of glass, and lead oxide, a chemical used in the production of crystal glass. Crystal glass?s production occurred under 1921-1971, but emissions of lead into the air from Åfors glasswork continued until 2011, because of the artist Bertil Valliens? artglas was made in Åfors glasswork from 1970?s and onwards.The aim of this study was to estimate how much lead (Pb) and arsenic (As) that were released by Åfors Glasswork into the atmosphere during the operational period of the glasswork in comparison with how much of lead and arsenic were purchased for the company. Added to the assistance of the data from National Archives the variations in the activities of Åfors glasswork could be shown.

The effects of the deregulation of the electricity market 1996 in Sweden on short-term hydropower regulation are unknown. This report investigates patterns in subdaily regulation in the Ångerman River Basin during the period 1993-2011. Differences in subdaily flows and zero flow events between the periods 1993-1995 and 1996-2011 were studied by analyzing hourly data from 8 regulated and 8 unregulated locations with four subdaily flow variation indices. No correlations between the market deregulation and the regulation intensity in the Ångerman River basin were detected. The number of days natural ranges of variability were exceeded and the magnitude of subdaily variation were significantly higher at regulated locations.

Denna studie syftar till att granska variationer i bedömningar och beslut om ekonomiskt bistånd utifrån vilken betydelse den enskilda organisationens riktlinjer har för dessa. Utifrån syftet, och med stöd av tidigare forskning på området, valdes vinjettstudien som metod. Ett identiskt typfall, gällande en fiktiv ansökan om ekonomiskt bistånd, skickades ut till samtliga kommuner i Västra Götalands län, med undantag för Göteborgs kommun. Vinjetten riktades till socialsekreterare som i sin vardag arbetar med handläggning av ekonomiskt bistånd och totalt erhölls svar från 16 olika kommuner. Resultatet påvisar stora skillnader i både bedömningar och beslut mellan de olika kommunerna vilket verifierar de tidigare studier som gjorts.

Previous studies of central tire inflation (CTI) in truck transport of roundwood have shown potential benefits to include more even wood flow and reduced road damage. The greatest benefits are found to be during periods of low bearing capacity such as spring thaw. No previous studies have examined geographical variations in the potential benefit of CTI-equipped trucks. The aim of the study was to develop and use a simple method for geographically prioritizing the use of CTI-equipped trucks within a forest company´s sector of activity.The host company for the study was Holmen Skog. The area studied consisted of Holmen Skog?s entire sector of activity extending from the province of Västerbotten to the province of Småland.

To achieve the requirements to decrease emissions of greenhouse gases by 20 % by 2020, Swedenneeds to increase its use of bioenergy. In doing so it seems natural that those who already haveaccess to large amounts of biofuels in the form of by-products such as straw, wood chips anddigestible materials take advantage of these assets locally. By combining production of heat withpower production at the farm it may be possible to not only reduce the direct use of fossil fuel forheating but also reduce energy costs.The purpose was to simulate different cases of using a small scale biofueled combined heat andpower plant for farm-based systems. A MatLab-model was developed and used to draw conclusionsabout the costs for production of heat and electricity with different conversion technologies.The model uses climate data to simulate the variations in heat energy demand on a day-to-day basis.The given heat demand is the base of the simulation and from this the possible electric output iscalculated. This study has focused on the impact of the following properties: electric-, heat- andtotal efficiency, fuel, fuel price and specific fuel requirements.

Our study emanates from a socio?cultural perspective on learning and aim to describe and comparetwo different upper secondary school classes and their work with information literacy as a socialpractice in project work and their use of ICT (information and communication technologies). Thequestions at issue in the study are; how the pupils handle information seeking processes, whatdifferences and similarities can be observed in the two social practices and which consequences thesedifferences have in an project work environment.Our choice of research methods to collect data consists of both observations and interviews withpupils and teachers. The interviews performed in the study can be categorized as qualitativeinterviews, and in addition we recorded and took notes during the interviews and transcribed thematerial.The study shows the importance of a good learning environment when it comes to working withinformation seeking processes, that the instructor?s role is of outmost importance and that the pupilsfundamental knowledge of information seeking processes and their information literacy are keysuccess factors when it comes to project work linked to ICT to be productive.

The reconstruction of a central area in Stockholm named Slussen (The sluice) has frequently been portrayed and debated in media over the last few years, escalating around December 2011 when the major decision regarding Slussen was to be made by the city council. The area serves as a traffic node connecting the areas of Södermalm and Gamla Stan (Old town) together. The last major change of Slussen was completed in 1935, best described as a modernistic traffic and architectural piece of work. It is indisputably an area of importance for the city of Stockholm, its citizens and visitors. How has media reported the development of the New Slussen project?The analysis, and the conclusions drawn from it, will be based upon and performed with a quantitative content analysis and critical discourse analysis.

Following essay examines the social and cultural patterns of southern rural Sweden between the years 1838-1845. The study is based on records from trials held by the district court of the district Norra Möre, which provides an insight to the everyday life in rural local community. Emphasis is put on exclusion and inclusion: the basis for community, codes for inclusion and exclusion, meaningful attributes, social and cultural capital etc. Questions concerning gender are raised as well as intents to discover whether modern ideas contrast early-modern, especially considering the process of individualization. Results show that concepts of confidence and trust were extremely valuable and possessed significant meanings.  Confidence, which established itself on virtuous and honest life, created the framework for most aspects of social society: for example credibility inside and outside of court, maintenance of friendship and company, capacity of upholding a working life. Forfeit of trust, through extensive dissolute, mischievous and ill-considered way of life meant exclusion from the community and great vulnerability.