Self-driving cars are soon to become a reality to the commercial market. A self-driving car does not have a human operator, which enables some interesting characteristics. The main benefits are considered to be:The number of accidents and traffic jams should be reduced.Enhanced comfort.Energy usage could be decreased while capacity could be increased.This study concerns the causes for improved energy efficiency. The reason for improved energy efficiency is mainly because of the variation in terms of acceleration, braking and distance holding are reduced. The vehicles are more intelligent and can work together as a unity.

In writing this study, I wanted to examine which principles of organization that are possible for Swedish public libraries to use, and what these principles mean for the libraries customerorientation. This is done by examining a number of written sources, as well as studying the organization of six public libraries. I found several possible principles, but a number of principles have been more commonly used than others. Historically most public libraries were organized according to the functions needed to be carried out within the organization, but today it is much more common to use subject-based organizations, with some examples of organizing according to user-groups and needs. I have also encountered the possibility of organizing according to the sources that are to be handled, or the way in which these sources are used by the customers.

Akademiska hus is a real estate company that specializes in providing Swedish universities with housing facilities for educational and research purposes. The company strives to reduce its use of energy by 40% between the years 2000 and 2025. The aim of this thesis is to determine which measures can be taken to reduce the need of purchased energy in a building that is used by theSwedishUniversityof Agricultural Sciences inUppsala.In order to determine the results of various changes to the building envelope and ventilation system, the building was modelled in the computer simulation program VIP-Energy. Other proposed changes to make the use of energy more efficient concerned water use and lighting. The need of purchased energy can also be reduced by producing electricity or heat on site, using solar energy.Results show that economically viable measures include upgrading windows and faucets, adjusting control systems for ventilation and lighting, and installing roof mounted solar panels for power production.

This thesis examines source criticism and critical thinking among upper secondary school students in social science in three different schools in Sweden. Our particular focus lies in investigating the student's critical thinking skills and evaluation of digital sources when they work independently with different projects. How do students value and sort the information they find? We looked furthermore at what factors that may influence students in their evaluation of sources. Moreover, the purpose of this thesis to investigate how the student's critical thinking skills can be used as tools to become more information literate in a learning context.

In this paper we have theoretically built a house designed for people with impaired mobility. Theessay begins with an introduction in which the purpose of the work, the methodology and thedepth-research part is presented. Then the layout that explains how we intend to adapt the housefor the demands detailed in the depth-research part is presented. In the same chapter variousstructural components, such as different floors and walls, are specified.In the selection of materials we have taken into account the criteria of our specialization andadaptation to the aesthetic aspects, where we evaluate materials based upon our wishes regardingtechnique and form. There are also other aspects that are important in the selection of materials,including that these are adapted to technical traits of the construction elements and installations.In a later chapter the technical installations such as ventilation systems, heating systems,electricity and sanitation are presented, where both technical and financial aspects are describedin detail.

This Bachelor?s thesis consists of two parts; one with prefabrication (prefab) in focus and thesecond part includes detail design of a house project. These parts are linked together by designingsome parts of the house project as prefabricated.The focus section investigates how prefabrication can act time-, costs- and environmentallyeffective to a building project. This is investigated by combining literary sources with sourcesbased on reality in the shape of interviews. The result of the investigation is that prefabcould acteffectively on previously mentioned factors,if this way of building is used in a proper way.The detail design of the house started in a residential area with a new local plan in Huddinge,named Sjöängen II.

Internet has since the beginning of the nineties gone through an enormous growth in size, and with this big increase in numbers of users, a new, lucrative advertisingmarket was created with webbased marketing. This market has grown in the same tempo, and has now reached some sort of a breakpoint. There is no doubt that internet will be a marketingmedium to count on in the future, but how will development continue to progres and what shape will it have? Will this development keep on growing in the same tempo as earlier or will we see factors that put a break on this development?With this study, I have wanted to give a picture of internet as a marketingchannel today and how it is understood by consumers, spokesmen for the bransch and branschauthoritys. Further, I have tried to give a picture of how the future could look like, judging from the data that was collected from interviews, a big poll and those written sources on the subject that are available today.To be able to give answers to my questions at issue and reach a conclusion for the partproblems that I had initially, I have made a group of interviews with spokesmen of the bransches marketing, netportal, netanalysis amongst others.

The current debate about environment and climate change has contributed to more andmore investment in alternative energy sources such as wind, solar and biogas. The Swedish Parliament has set the target that wind power should supply 10 TWh in 2015.In Sweden, wind power establishment began in the early 1980s. Since then the development has gained a tremendous momentum. The purpose of this study was to find out what problems wind power brings and what power relations that exists in connection with wind power establishment and how the landscape is affected by windpower construction, focusing on some cases in Falkenberg and Varberg. This study shows that wind power establishment is a very complicated process.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

Self-driving cars are soon to become a reality to the commercial market. A self-driving car does not have a human operator, which enables some interesting characteristics. The main benefits are considered to be:The number of accidents and traffic jams should be reduced.Enhanced comfort.Energy usage could be decreased while capacity could be increased.This study concerns the causes for improved energy efficiency. The reason for improved energy efficiency is mainly because of the variation in terms of acceleration, braking and distance holding are reduced. The vehicles are more intelligent and can work together as a unity.

Abstract In order to make the modern agriculture less dependent on non-renewable external inputs, it has to rely more on ecosystem services. The agricultural system produce not only food, fiber and fuel, it also generates other ecosystem services such as e.g. photosynthesis, recycling of nutrients, influencing local microclimate, pollination, biological control and detoxification of noxious chemicals. This study is an attempt to get a better understanding about the interaction among different ecosystem services and different habitats capacity to generate them. An evaluation of eight different methods is done. The ecosystem services studied are the ability to absorb solar energy, biomass production, botanical diversity, decomposition and natural predation of aphids.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

The purpose of this thesis is to make a comparative literary study of ten laboratory experiments with different kind of sources for query expansion terms. The experiments are grouped according to categories of term sources, which are: search results, collection dependent knowledge structures, collection independent knowledge structures and one that combines the two last mentioned sources into one. To enable a comparison all other variables were held as constant as possible. There is the improvement measured in mean average precision, which is used to measure the various sources potential. The result from the study shows a strong connection between the kind of source for the expansion term and improvement of the result.

The main purpose of this Master?s thesis is to contribute to anincreased understanding of student teacher?s informationseeking for their studies. The role of cognitive authorities andapproaches to the critical evaluation of sources are taken intoaccount as well as what student experiences of informationseeking imply for their future profession. The study takes asociocultural perspective and the empirical material is based oninterviews with six student teachers at the end of theireducation. The interviews have been analysed with a departurepoint in the research questions to the following themes; seekingand finding information, critical evaluation of sources and,analysing and using information.The major findings concern the teacher students? emphasis onthe importance of the critical evaluation of sources and theirscepticism towards Internet use, both for their own studies aswell as for their future pupils.

Hallstaviks papermill is an industry plant within Holmen Paper. Hallstavik is a mechanical mill and produce newspaper and journal paper. During year 2000, Hallstavik used approximate 1.200 m3f spruce, either as logs or chips from sawmills. Due to that the production is running continuously the mill also needs raw material at the same rate. At some periods the supply of raw material cannot keep up pace.