The Smart Grid technology has during the last decade been established as a way to create a greater flexibility on the electricity grid that will be needed as the development moves towards an increased share of renewable primary energy sources in the electricity production. One part of the Smart Grid technology is the ability to shift loads in time, to adapt to either price or emissions, known as Demand Response. This project, which was conducted at KTH in collaboration with the consulting corporation Capgemini, examines the economic, environmental and social aspects of the Demand Response technology. In the project, three household products are used in a model that derives the potential savings in costs and emissions of CO2e. The results show that the actual savings measured in SEK are small, but that the savings measured in percent can be as high as 20 percent. Reduction of CO2e emissions is slightly lower.

The purpose of this essay has been to investigate if the national test results, in the subject of Swedish B at upper secondary school, are affecting a student?s final grade in varied degree among different teachers. The purpose has also been to investigate if the assessment of these tests is equivalent among different teachers. This particular investigation showed that there are big differences between how teachers grade, in relation to achieved results on the national test. According to the Swedish National Agency for Education, the teacher should take all performance information available into consideration for each particular student.

The Energy Market Inspectorate is implementing a new tariff regulation in Sweden. A small part of the new regulation concerns effectible operation costs and originally they where intended to be calculated using a modification of equivalent comparison standards, in Swedish Ekm. This thesis is intended to analyze if Fortums grid in Stockholm could be described correctly, using equivalent comparison standards. In Ekm every part of the distribution grid is designated a weighting in relation to 1 km 0.4kV over head line. These Ekm-measurements are intended to simplify comparison between different grid areas with different structure and geographical conditions.

The purpose of this essay is to study the film culture in South Africa in a national cinema-context, focusing on the relationship between anti-apartheid film from 1974-1994 and the film in South Africa today. By pitching the South Africa-specific works of Lucia Saks and Jacqueline Maingard against the over-arching debate on national cinema as formulated by, amongst others, Stephen Crofts and Andrew Higson, this study aims to find whether or not a specific South African national cinema have existed, and exists today, or not. The study finds that an underground culture of documentaries and short films made by and for the black population has been in place since the apartheid, and the distribution method on video and television is still being used to reach the black population today. By re-examining the concepts of both the national, and of national cinema to also include film on video and television, the study shows that South Africa has indeed a film culture that can be called a national cinema..

The dependency of continuous electricity supply is high in the Swedish society today, at the same time no one is willing to pay for a too costly or over dimensioned power distribution system. The owners of the distribution systems are the ones responsible for this balance act of maintaining a high quality of electricity delivery to customers at a reasonable cost.In this master thesis a limited part of the primary distribution system (10 kV), owned by Mälarenergi Elnät AB and located in the city centre of Västerås, was chosen for a deeper analysis of its reliability. Its ability to handle outages of system components (N-1 and N-2 contingency analysis) was investigated to find out potential weak spots and parts of the grid that showed signs of being overdimensioned.The results of the performed simulations showed that in 74 % of the studied N-1 contingencies cases, consisting of outages of a bus bar in a distribution substation, the system could handle this without causing outages in other parts of the grid. For the N-2 contingencies 61 % passed the test. It was also found that one of the two included high voltage substations could alone supply the investigated part of the grid.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

The aim of this paper is to find an algorithm to establish and maintain a virtual enclosure around a mobile unit. The area may take any form and should be scalable up to and including national borders. The enclosure is managed on the mobile unit. The target system is Android. Smartphones, tablets and more recently, cameras is examples of mobile units. A modern mobile unit is part of a computer network.

Total amount of words: 15 269.In this essay, the purpose is to examine the personalization of Swedish national coaches during international championships in the Swedish tabloids. Research shows that a leader nowadays is representative for her organization. Therefore it could be assumed that the way the national coach is portrayed can have some kind of effect on the public opinion about the team as a unit and their sport federation in total. This essay is a quantitative study of the sport tabloids Sportbladet och SPORT-Expressen during three international championships: Euro 2012 in football, WC 2013 in ice hockey and Euro 2014 in handball. We have studied the coverage of the national coaches Erik Hamrén, Pär Mårts and Ola Lindgren/Staffan Olsson in contrast to the coverage of their teams in total.The main results are that the national coaches are mentioned in every second article that is written about the national teams during the championships. They are mainly portrayed in a neutral way, even though the coverage of them is affected by the results in the matches.

Electricity production from renewable energy resources such as wind energy and photovoltaics is variable. Integration of these intermittent resources into the electricity system leads to new challenges in how to manage imbalance between supply and demand on the grid.One way to meet these challenges is to develop so-called smart grid solutions. One idea, called demand response, is to adjust the amount or timing of energy consumption, e.g. by control of household appliances, to provide flexibility that could be used to balance the grid. In aggregate, when applied to many units across the system, large volumes of energy could be made available when needed and this grid flexibility can be used as a product on the electricity regulation market.Despite the potential benefits, the number of demand response bids is currently low.

Since the beginning of 1940 there have been externally developed tests in Sweden. Their appearances have changed over the years together with the cognitive approach. Nowadays, this kind of tests is going by the name of the national tests, which was introduced in the year of 1994. When the Swedish National Agency for Education received the assignment to develop new purposes and national tests to the third grade students, debate took a bounce. The matter was well discussed; national tests in third grade or not?The national tests thus far carried out four rounds in the third grade and the purpose of my study was to find out how teachers are reasoning about the tests.

The town of Karlstad has a long term project called Vision 100 000 which aim is to increase the population towards 100 000 inhabitants. This will of course put a strain for the town?s energy distribution grid. This is a work about trying to predict the grids power usage would be for the next five years if the city building plan is finalized. Those predictions are mainly going to be done through calculations with a database program called Facilplus and by checking the measured history of power usage per hour on certain selected customers by the program CustCom.

In September 2003 the Swedish minister of foreign affairs Anna Lindh was murdered. The murder shocked Sweden and the picture of a safe homeland was challenged. The Swedish people joined together in different manifestations and rituals to show their appreciation for the minister and to mourn together. A few days later the nation was going to vote on whether Sweden should join the euro and the minister was involved in the campaign. The aim for this thesis is to understand how this national crisis was handled in Sweden.

The aim of this thesis is to investigate the possibilities for creating a national interlibraryloan system in Sweden and to see how it could be integrated into an international network .The methods used are both qualitative and quantitative. We have sent inquiries to a numberof libraries and we have interviewed keypersons in the interlibrary loan field in Sweden.We have reached the conclusion that in spite of several impediments there is a lot that speaksfor a Swedish national interlibrary loan system in the near future. A national bibliographicdatabase is already evolving..

This essay aims to study how national tests in the ninth grade are being viewed upon in the Swedish school system. What are the affected people?s thoughts regarding its field of application? For further information about this matter, three different sub studies have taken place. In the first sub study, literature from The Swedish National Agency for Education (SNAE) has been studied and compared to other researches. In the second sub study, pupils who took part in the national tests during the previous year answered a survey about their experiences working with the tests.