Simulations of simulink models using Kalman filters are often very time-consuming. This problem depends mainly on the fact that the Kalman correction has to be performed at each sample instance through the whole simulation. The goal for this thesis work is to reduce that time-consumption for the filtering part (the integration partis treated in a complementary report) of a simulation. Furthermore a Matlab routine to perform parameter tuning and finally a graphical user interface is developed.The filtering part of the simulation in this thesis is based on an Extended Kalman Filter (EKF). The time optimization of this filter considers searching for the possibility to replace the today?s existing Matlab functions that is used to perform the filtering calculations.

The purpose of this study is to investigate, and if possible explain, how background, childhood, and education in a municipal or regional context can affect young peoples? life trajectories.The living conditions for the population in the coastal region Roslagen with its geographical and historical specificities has during centuries largely been characterized by practical crafts-manship. With a growing share of non-permanent residents in the region with demand for help and services, this culture has during the later years been able to prosper. The social reproduc-tion in the municipality also seems to be extensive. In addition to original background, appar-ently the municipality?s service-dominated trade and industry culture has also affected the choice of education and profession of the youth in Norrtälje.

This report describes an analysis of WebGL together with JavaScript with the aim to examine its limitations, strengths and weaknesses. This analysis was performed by building a 2D game engine containing some dynamic elements such as water, smoke, fire, light, and more. Different algorithms have been tested and analyzed to provide a clearer picture of how these work together. The report will go through the most basic functions of the game engine and describe briefly how these work.The result shows that JavaScript with WebGL can be considered to be a potent toolsets, despite the difficulties caused by JavaScript.In summary, similar projects can be recommended as Javascript and WebGL proved both fun and incredibly rewarding to work with..

District heating covers around 80 % of the heating demand in apartment buildings and 10 % in single-family homes in Sweden. In the year 2010 the total input of energy to the Swedish district heating grids was about 70 TWh, which corresponds to 11 % of the total energy input to the whole energy system in the country. Through the combined production of heat and power the CHP-plants often reaches an efficiency of 90 % from energy in the fuel to produced heat and power. In order to keep the efficiency high it is important for the owners of the plant to have good knowledge about the plants performance at different operation points. Strängnäs Energi AB initiated this diploma work together with FVB Sverige ab in order to come up with a program for short term planning of the production of heat and power at the company´s CHP-plant.The work consists of three main parts.

Today when new and harder demands on CO2 emissions are developed, vehicle manufacturers must work to develop new engine solutions to new kinds of fuels to replace fossil fuels. A fuel that could be applied is hydrogen. When hydrogen is combusted only water vapor occurs. Hydrogen is known to be explosive and flammable. These properties are both good and bad for combustion.

Estimation of the variation in the integrated hydraulic conductivity around the Tunåsen infiltration facility - An investigation of the effects of uncertainties in existing informationAlmost half of Sweden?s drinking water volume is produced from groundwater. The main fraction of this is extracted from eskers, some of which allow for very large extraction rates. Despite this, the groundwater volume is not sufficient in some areas. This has led to an extensive use of artificial recharge.In Uppsala, the total volume added through artificial recharge is divided between four infiltration facilities.

This thesis adresses the subject of stormwater management and the problematic with stormwatermanagment and landuse in the compact city. The thesis research different solutions in stormwater managment and how to implement them in the context of the compact city. And at the same time preserve and make good recreaational places and keep quality green land per capita. The thesis also analyses risks and problems that could effect the environment with focus on stormwater managment and hov to minimize these problematic factors an create a good environment. In an urban context where the water has a natrual place, and is used as a asset.

Den 11:e sptember 2001 inträffade västvärldens i särklass värsta terror dåd på Manhattan i New York. I samma ögonblick som det första planet plöjde in i ett av World Trade Centers torn började in process mot ett fullskaligt krig mellan USA och Terrorismen. I denna process har vi skiljt ut två personer och tre beslut som vi anser i hög grad har påverkat det efterföljande kriget. George W. Bush och Donald rumsfeld har i vår mening satt tydliga spår på den fortsatta utvecklingen.

Denmark, Germany and Sweden are along with 24 other countries members of the European Union. Being part of the European Union also means being part of a European market. Within the union barriers for trade has been abolished in order to create more open market. This open market has also contributed towards a more globalized market for dairy products. What used to be a domestic market has become globalised with increasing trade among the members.

A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst.The titania-supported catalyst did not only show higher stability than alumina, but also presented a different cause of deactivation, carbon formation. In addition, a kinetic model was obtained for the titania-supported catalyst, and a study of the effect of different operating conditions (temperature, composition and partial pressures of synthesis gas and water) on the deactivation rate and carbon formation of this catalyst was performed.

Abstract: The purpose of this study was to examine the Swedish industry- and craftmanship trade, specifically the relationship between effort and reward and how it affects the meaningfulness during labour hours. Also, what are the possible effects on production efficiency as a whole? Discussed and analyzed through empirics and previous research.38 workers filled out a survey and two interviews were conducted to get a more analytic depth to the data.The results showed that there is little to no reward for high effort during labour hours on the evaluated workplaces, combined with low commitment and meaningfullness. My conclusions are that more ways of effort-based rewards would likely have a positive effect on meaningfulness and thereby the production as a whole. I also show that the theses of Karl Marx are still plausible and relevant in modern day industrial- and craftsmanship trades in capitalist countries..

The purpose of this investigation was to find out more about students? spontaneous ideas about properties and transformations of matter. Examples of matter chosen are such which students know about from everyday life and focus is mainly on the questions if students know that all matter has weight and that matter is preserved in transformations.The method used is semi structured qualitative interviews with individual students. Different experiments were carried out together with the students who afterwards were interviewed. However, the students show varying answers and no generalizations can be done.

Background: One of the largest direct selling companies Amway "AmericanWay", which has its foothold in the market economy by means of direct trade. This means that the marketing is in the form of a network made up of various individuals who work together to advertise the company on to various potential customers.Aim: The survey aims to study the factors that are affecting the company Amway's growth.Completion: The survey is based on analyzing the interviews. The authors have relied on the qualitative method, where they have focused on how growth has increased the company Amway.Results: The results of this study are that Amway gradually managed to establish themselves globally thanks to the quality of the products they sell in a functioning market. The study also shows that all member customers are satisfied with the goods they buy from ABO groups, and that Amway's structure is not based on a pyramid scheme..

I samband med klimatdebatten har flygbranschen blivit starkt kritiserad för utsläppen av koldioxid. Vissa flygbolag har infört frivilliga koldioxidkompensationssystem för sina flygresenärer, i syfte att hantera dessa utsläpp. Vårt syfte är att analysera flygresenärers attityder till frivilliga koldioxidkompensationssystem för att diskutera möjligheten till samverkan inom miljöområdet mellan flygbolag och flygresenärer. Uppsatsen baseras på en enkätundersäkning bland 300 flygresenärer och på tre intervjuer med chefer inom SAS Danmark. Analysen görs utifrån teorier om CSR och co-creation mellan företag och kunder.

Miljonprogram is a Swedish building program from 1964 to 1975. During that time about a million homes were constructed. Now, almost 50 years later, they are in desperate need of renovation. In order to fulfil the Swedish environmental objective to decrease energy consumption 50 per cent until 2050, considerable housing stock built under the Miljonprogram has to be renovated.Focus in this thesis is on the building services and theirs profitability that can decrease energy consumption in households build during the Miljonprogram. Building construction is not considered in this report.