Waste appears to be a low-cost fuel compared to biofuel. This Masters thesis was conducted for Vattenfall Utveckling AB and deals with how waste in the fuel affects the performance of a SCR-catalyst. Different mechanisms of deactivation were surveyed, focusing on the poisoning mechanism. A literature study was carried out, which was used as a reference when analysing the results.Small samples (9x2x2 cm, 64 pieces) cut out from a full-scale unused honeycomb catalyst were exposed up to 1500h in two different combustion plants, Johannes in Gävle (co-combustion) and Högdalen in Stockholm (waste-combustion). The activity was measured mainly at 300°C but also at 250, 350, 375 and 400°C.

This report describes a study of two different methods to achive the best possible result in setting out apartment details. These two methods are the setting out of details with a measuring tape from baselines and the setting out procedure with an instrument (totalstation).Through our knowledge in surveying and mapping technology and help from a carpenter, this investigation has been implemented. The setting out using a tape has been performed by letting the carpenter to set out windows, bathroom and water- and drain-details from baselines and drawing. The setting out using a surveying instrument was carried out by means of a Trimble Total Station. These two methods have been compared in order to detect and show the difference that occurs.The report shows the investigation background story from the practice of Swedish Mätcenter in Karlstad.A result of differences in accuracy and time is described in the report, as well as their theoretical consequences.

On a request from the water sewage plant Gryaab in Gothenburg a power quality survey was performed. The voltages and currents have continuously been sampled in the incoming 10 kV substation HSP01 from April-August 2008. Power quality measurements were also performed in Gryaabs other 10 kV substation HSP04 fed from HSP01 and at the terminals of the induction motor IN_PU4040 of 1.3 MW which controls one of the four large inflow pumps to the plant. The reason for the latter measurement was due to registered negative transients each time the motor was connected to the grid. The cause of the transients could be explained by the coupling in the substation, the ageing of the motor which could result in damage of the bearings or resonance in the motor circuit which amplifies high frequency harmonics.

Denna kandidatuppsats syftar till att utvärdera en i sammanhanget ny modell för värdering av optioner. Modellen går under namnet SABR och har enligt flera bedömare tagit en position som branschstandard inom vissa områden. Flera forskningsrapporter har presenterats i vilka modellen analyseras matematiskt och tillämpas på specifika marknader. I denna uppsats används data från Chicago Board of Exchange, mer specifikt optionen på S&P 500 index. Tillämpningen grundas på en kalibrering (regression) av vissa parametrar.

Open pit mining creates huge amounts of tailings and waste rock deposits. Due to it's content of sulphide minerals, predominantly pyrite (FeS2), there is a risk of oxidation and formation of acid water containing heavy metals, known as Acid Rock Drainage (ARD). To prevent the process of oxidation, the tailings and waste rock have to be reclaimed. The most commonly used methods of reclamation are a coverage of water or soil. Mining also results in a large-scale interference in the landscape that will make an eternal change of its appearance.

The focus of this thesis is on social workers? knowledge in assessing and making decisions in child welfare cases. The primary aim is to identify what skills or knowledge social workers find most useful within child welfare agencies in Swedish municipalities. Six different types of knowledge, social policy and the approach of child welfare cases are perspectives considered in the analysis. The interviews with social workers were held in three agencies in southern Sweden, in 2014.

Följande uppsats undersöker hur svensk utbetalningspolitik har utvecklats under åren 1992-2012. Urvalet består av de företag som under våren 2014 var noterade på Stockholmsbörsens ?Large?, ?Mid? eller ?Small Cap? lista. Återköpens andel av den totala utbetalningsandelen visar sig inte vara lika hög som andra internationella studier har visat. Det är istället utdelningarna som utgör merparten av de totala utbetalningarna.

The thesis handles the principal-agency problem between shareholders and the Chief Executive Officer. The purpose of the thesis was to examine the link between CEO compensation and corporate performance measured as a change in Market to Book ratio. Data was collected from corporate annual reports between the years 2000 ? 2008 and the study covers 39 Swedish companies from the Stockholm Stock Exchange Large Cap list. To examine whether there is a link between the CEO´s compensation and firm performance, we performed a regression analysis, and no significant relation is found.

The purpose of this thesis is to examine whether institutional ownership has an influence on CEO compensation in companies where the institutions have invested. In order to fulfil the purpose of the thesis a quantitative study was carried out within the Swedish corporate context where we have studied Swedish institutional investors and companies quoted on the Stockholm Stock Exchange. Our period of study was the financial year of 2007.The empirical questions at issue is; Was there a connection between Swedish institutional ownership and the size of the CEO compensation, and, does Swedish institutional ownership lead to a certain type of CEO compensation in terms of structure?Our results did not suggest that an increased institutional ownership neither leads to a certain type of salary level nor a certain kind of salary structure. These results contradict earlier American research, which has been done within this area and has previously shown a secured connection.The reasons for our results may be many and it is difficult to state any concrete conclusions to why we received differing results.

Gtherm is an innovation company who has an unique air heat exchanger underdevelopment. The purpose of this thesis is to provide data of suitable motors for theheat exchanger and to find suitable motor suppliers.A motor specification was designed. It is an important basis for the search of suitablemotors. A compilation was made of nine motor suppliers and the suitable motorsfrom those. The compilation can be used by GTherm in their choice of suppliers andmotors.The compilation of the demands on the motor and analysis of suppliers indicated thatthere were no standard motors available to GTherms air heat exchanger.

Background: Low Price-Earnings ratio, low Book-to market ratio and low stock prices can give the impression that a stock is ?cheap?. Is it through systematic use of these portfolio strategies possible to beat the market index ? in other words does financial illusions exist? Purpose: To examine if the Stockholm Stock Exchange is an efficient market. Limitations: The efficiency is tested solely through the chosen portfolio strategies: low Price-Earnings ratio, low Book-to-market ratio and low stock prices.

Syftet i detta examensarbete är att få en inblick i hur förskollärare/barnskötare planerar och stödjer barnen i deras sökande efter olika matematiska begrepp i lek med vatten. Vi har gjort en tvärvetenskaplig undersökning på fyra 1-3 års avdelningar, som är baserad på ett hermeneutiska tankesätt där vi har tolkat förskollärarnas/barnskötarens agerande vid vattenlek. Vi har använt oss av kvalitativa undersökningsmetoder i intervjuerna och observationerna. Resultatet i vår undersökning visar att förskollärarens/barnskötarens egna kunskaper i matematiska begrepp, planering av aktiviteten, förståelse för barnens kunskaper är viktiga för vidareutveckling av barnens matematiska begreppsbildning.

This study examines whether the ownership structure of Swedish firms contributes to explain the variations in executive pay. A regression analysis was performed on 102 companies listed on the Stockholm Stock Exchange. The analysis suggests a negative relationship between ownership structure and executive pay after taking company profitability and size into account. The result is in line with previous studies and the agency theory. This indicates that large shareholders have a stronger position in Swedish companies or that large shareholders monitor the management to a larger extent, rather than providing incentives.

This study deals with teachers ideas about the physical environment of a mobile preschool and how it affects children?s learning. The essay describes how the preschool bus is decorated and how a normal day works in the mobile bus. The survey was based on the following questions:Are there disadvantages and advantages in terms of physical environment in the mobile preschool from an educator based perspective?What are the teacher?s thoughts about the impact on children?s learning in terms of the physical environment on the bus?Summary: To answer my questions I have participated in activities during the day and I have used the interviews to find out the teachers thoughts.

This master thesis is looking into the stories on the internet forum www.resedagboken.se. The stories of Swedish teenaged exchange students in the U.S. are studied and the main purpose is to see both what they are writing about and the reason for why they are spending their time writing down their experiences in a public forum.Even though most of the teenagers here are writing with a specific audience in mind, all the stories are free to anyone to take part of and this causes a difficult position for the teenagers who often seem to forget the public point of view when they are telling about their personal lives.The study is divided into two parts. The first one looks into the content of the stories and the other one focuses on the storytellers and their reasons for writing. The teenagers are writing both a lot about their everyday lives in their new environment, but also a lot of things to keep in touch with what their friends and family in Sweden are doing.