This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

Female growth, number of eggs and egg growth of Daphnia pulex were studied at four temperatures, 12, 16, 18 and 20°C. I hypothesized that female growth and number of eggs would be lower and the size of the eggs larger in the presence of a predator (kairomones) than in its absence. This effect was expected to be more evident at lower temperatures. I could not find any effect of kairomones on female growth, number of eggs or egg size, although there was a weak tendency for an effect on number of eggs. There was, however, an effect of temperature, regardless of predator treatment (i.

I denna studie presenteras en genetisk algoritm som genererar fun banor till ett bilspel. Detta görs genom att utforma fitnessfunktionen efter redan identifierade designmönster om vad det är som gör en bilbana fun. Dessa bygger på Csikszentmihalyi teorier om flow som säger att för att en uppgift ska anses uppfyllande måste den vara utmanande. Utöver designmönstren bygger fitnessfunktionen även på rhythm groups för att en bana ska variera i utmaning. Genom speltest jämförs de genererade banorna med banor som är skapta av en leveldesigner för att framställa hur fun de genererade banorna är..

Uvån Hagfors Teknologi AB (UHT) has developed a process ? GRANSHOT® ? for quicksolidification of metals in water baths. In the process liquid metal is splintered ? granulated ?into small drops. The drops are rapidly cooled in a water bath where all the heat energy from theliquid metal is transferred into the water.

Purpose: The purpose of this study is to examine whether hedge funds generate higher risk-adjusted returns than traditional managed funds in Sweden.Methodology: This study was based on quantitative data about the funds historical returns. The funds historical returns were taken from the database Morningstar and the risk-free rate from the Swedish central bank. Random samples of 36 funds have been divided into three portfolios in the form of a hedge fund portfolio, stock portfolio and mix fund portfolio.Result & Conclusion: The study concluded that the stock portfolio has shown the highest average yield for the study period where all portfolios below market index. Hedge fund portfolio has achieved the highest risk-adjusted return calculated by the portfolios Sharpe Ratio. Of all hedge strategies, arbitrage had the highest average return and risk-adjusted returns..

The thesis demonstrates a low-cost, low-bandwidth and low-resolution Analog-to- Digital Converter(ADC) in 0.35 um CMOS Process. A second-order Sigma-Delta modulator is used as the basis of the A/D Converter. A Semi-Uniform quantizer is used with the modulator to take advantage of input distributions that are dominated by smaller-amplitude signals e.g. Audio, Voice and Image-sensor signals. A Single-bit feedback topology is used with a multi-bit quantizer in the modulator.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER). An improvement is only seen when the BER becomes much lower than what is common in real situations. In conclusion DDCE is complicated, involves many mathematical operations and gives insignificant improvement of SNR when BER takes common values. It is legitimate to question if it is possible to use the method in a real mobile phone system..

This study tests two financial valuation models empirically by valuing three stocks from three industries, with the purpose of studying how well valuation models work empirically and to make a forecast. The models which will be tested are residual income valuation and discounted cash flow. Nine stocks will be picked strategically from the Swedish stock market and additional analysis will follow in the analysis chapter.Based on analysis and valuation, the commodities industry has decent valuation as the healthcare industry is undervalued thanks to the high valuation of AZN. The energy industry has low value due to the capital intensive nature of the industry. When it comes to the models and their practical implementation, DCF has been the most problematic to apply empirically whereas RIV was better but it still shows extreme values, which teaches the student the clear difference between theory and empiri..

The Internet provides the common user with a variety of both traditional and non-traditional news sources, and a vast range of possibilities to contribute to the flow of information. By their participation in the production of information ordinary citizens can sometimes function as non-traditional news sources them selves and reach a potentially unlimited audience. The interactive nature of the Internet blurs the line between producers and consumers, and challenges traditional definitions of what counts as "news" as well as who qualifies as a "journalist". The main purpose of this thesis is to examine the potential consequences of this decentralization regarding the information behaviour of newspaper journalists and their perception of their professional role. The study consists of qualitative interviews with six journalists, employed by four of the leading Swedish newspapers, and a review of earlier research in the field.

During the past year it has been made possible to buy back a company?s outstanding stock. This is done in order to change the capital structure towards a situation with less equity. A change in capital structure means a change in the cost of capital for a company and by that a change in the value for the stockholder. This Master Thesis studies the relation between capital structure and business risk.

The current planning philosophy is based on a political utopic modernism founded during the first part of the 20th century. The focus is, in planning a defined area, to maximize the internal efficiency and to create a competitivesociety. During the latter part of the former century globalization changed the context, thus creating the need for a new way of approaching physical planning. This paper shows that the historical and philosophicalmetaphor of flow can be applied to meet the demands in the global city. It also shows how the edge, as where interaction takes place, is an important part of the content that has to be defined.

The essential thing about breaks has been in relation to time, body, movement, force and room during my examination. Through conversations high-school students from two schools have taken part in this study. The examination is based on conversations with the students and has focused on students? experiences of breaks, and is also carried through by the method of phenomenology. The results of my studie show that students - during their breaks - experience a feeling of allways heading for something and also that time seem to exist in three levels: filled time, non-filled time and flow regarding of time.

Denna rapport redovisar ljuddesign- och implementationsprocessen av en sekvens i ett digitalt spel. Syftet var att designa en cinematisk interaktiv sekvens utan cut-scenes. Arbetet skulle vara upp- byggt runt ett system som ska fo?renkla sma? designingrepp utan att pa?verka eller fo?ra?ndra de o?vriga implementerade ljuden allt fo?r mycket. Arbetet utfo?rdes genom en kombination av linja?r ljudla?gg- ning och implementering i spelmotorn Bitsquids level editor och det visuella skriptspra?ket Flow.

The Swedish Textile industry has since the beginning of the 70-ties moved their production to countries with cheap labour further and further away. The production in the Baltic countries and Asia has become reality for many Swedish manufacturing companies. With today?s technology the communication with remote countries has ceased to be a problem. The difficulties have instead turned out to be more focused on transportation of goods and just in time deliveries to Sweden.

The thesis in product development ? mechanical design includes 15 credits and was carried out during the spring of 2014 at Semcon in Eskilstuna. The task is to construct a special machine for positioning and orientation of a key blank found in six different shapes, the construction is a part of a larger machine for encoding the key blank where a pick- and-place device or robot pick up the key blank and deliver it further in the process. The entire construction is designed for ASSA OEM Gothenburg.In order to accomplish the project the first step was to analyze the existing solutions to similar problems on the market in a current situation analysis to create an understanding of the problem. This was followed by a flow analysis and a functional analysis to get a deeper understanding of the problem and structuring the machine's process flow and its features.