The student project Elba at KTH started in 2011 and is a project where a battery driven prototype car is developed. The vehicle competes in Eco Shell Marathon in Rotterdam, Holland. In this competition the vehicle that travels a certain distance including several starts and stops with the lowest energy consumption wins. To minimize the consumption is therefore very important, which requires knowledge of the vehicles energy losses.A vehicle's energy losses depends on several factors and can be divided into the powertrain efficiency and the driving resistance. The driving resistance can then be divided in to rolling and air resistance, if smaller losses like vibrations are ignored.

How do the police prevention methods work against juvenile delinquency? The purpose of this study is to see how the police work to prevent juvenile delinquency in two municipalities in Stockholm, Södertälje and Sundbyberg. Additionally, the purpose of this study is also to find out if there are any similarities or differences between the police methods the police use in these two municipalities. We have used qualitative method in which we have interviewed the police and young people from the communities. We interviewed young people to see their attitudes to the police and the area to find their perception of police work in the fields as well as the police forces attitude toward the young people.

Högbytorp is Ragn-Sells? largest waste facility and it is located north of Stockholm. There is an old landfill still in use, but at the end of this year it will be closed. The waste deposited on the landfill can, through decomposition, give rise to a large amount of methane gas, which is an energy rich gas that can be used for heat and electricity production. To receive a relatively large amount of gas, the decomposition requires a high moisture content in the waste.

We came in contact with the project "Grönplan Danderyd" that aims to create a green structure plan for a municipality of Stockholm called Danderyds kommun. Our thesis is a part of this project and makes it's contribution through the gathering and systematization of the knowledge of the functions of an urban green structure. It also makes a contribution through suggesting how this knowledge can be applied during the construction of an urban green structure plan. We found that "Stadens parker och natur", published by the Swedish National board of Housing, Building and Planning, was a recurrent source of information in the green structure plans that we studied. We saw a need of complementary additions and updates to the rather old report and found literature that adds the developments of the last decade. First of all we have chosen to make themes based on the functions of a green structure that were presented by 'Stadens parker och natur'. The themes we suggest that a greenplanning document manage are: Recreation, Pedagogies and Heath, Biological Diversity, Green structure in the History of Building Cities, Cultural Identity, the Health of the City, Biological Technology in the Municipality and Use and the Users. We found good examples of how to handle these themes in documents that handle greenstructure planning from the municipalities of Göteborg, Strängnäs, Eskilstuna, Malmö, Lund, Västerås and Uppsala.

Prioritisation of software requirements is a critical part of the development of software. Whichrequirements and in which order they will be developed is one of the main tasks that requirementprioritisation supports.There are different ways that a requirement prioritisation can be used, for example alone or in agroup and with different methods.The purpose of this report is to map out how you can carry out a requirement prioritisation alonewith different types of prioritisation methods and how you solve the problems that can arise whenprioritisting requirements. This is done by documenting the use of three different types of methodsthat can be execute alone. The methods are "100-dollar test", "Ranking" and "Top-tenrequirements".To be able to prioritise requirements, you need to establish which requirements you shall prioritise.The paper retrieves this information by interviewing stakeholders in the system and analysing theresult of the interviews and the execution of the requirement prioritisation.Three problems arose during that work and I present solutions on these problems. The problemswere 1) equivalent requirements when using the "100-dollar test", 2) low differentiation gradebetween the prioritised requirements in the "100-dollar test" and 3) that the requirements that wereprioritised weren't classified before the prioritisation, which leads to inaccuracies in the resultingprioritisation.The solution to the problems that the paper presents is to increase the amount of distributable unitsin the "100-dollar test" to 1000 per requirement, suggestions of classes of the requirements andthe combination of the methods "100-dollar test" and "ranking" to bypass the equivalentrequirements.The report is written in Swedish.Nyckelord: GoTRIS, requirements retrieval, requirements analysis, Viktoria Swedish ICT,requirements prioritisation, requirements, 100-dollar test, ranking, top 10 requirements..

Skin temperature is detected through signals in unmyelinated C-fibers and thin myelinated A?-fibers in the peripheral and central nervous system. Disorders in thin nerve fibres are important and not rare but difficult to diagnose by the most common neurophysiological methods. In this pilot study different methods for quantitative sensory testing, QST, were compared to give some ideas about which method could be the most efficient to use in order to point out injuries of the sensory system in clinical practice. The comparison was made between Békésy (separate warmand cold thresholds) and Marstock test (combined warm and cold thresholds).

This report is about the issue with decreasing production rate mainly caused by failuresrelated to the multiswitch. The multiswitch is a machine at Gefleortens Mejeriföreningwhich has the function of distributing milk cartons from one incoming track into fiveoutgoing tracks. Milk cartons who gets stuck and there by causes the production to stop,is the mainly problem with this constructionThe purpose with this report is to understand the causing factors and make suggestions which can help solving these factors. By analyzing the machine during production, having contact with different suppliers, searching internet for information, 3d-cad drawings and the complementary with personal experiences, this machine has  been evaluated and as a result of this new problem has come to be known.The discovered problems was analyzed and resulted in new suggestions for alternative options. Later the most functional results was chosen and put as a suggestion for the new model.A new machine built with the suggestions from this report assures to be well adapted to the environment at Gefleortens Mejeriföreing and the problems it causes..

Amongst the published literature researching wet cleaning of paper there is a limited amount of studies conducted researching the method simmering water treatment. There are even less studies conducted on how simmering water affects the paper being treated when used as a cleaning method. Despite the limited research, there are literary reviews describing the method and suggesting it as an alternative for conservation of paper with iron-gall ink. The following study will therefore be examining, the somewhat unusual method, simmering water treatment, and comparing it to one of the more common wet cleaning methods: immersion washing. This is done to compare how the different temperatures of the water affect the paper. The types of paper used in this study consists of three dyed and four undyed papers. All of the papers are new, apart from one sample originating from 1847.

Aim is to investigate from a criminological perspective how the safety questionnaire in Älvsborg police district can be improved theoretically and methodologically, in order for the questionnaire to effectively measure criminal victimisation, concern about crime, safety and confidence in the police.1. What should a good questionnaire contain?- Which methodological problems are related to measuring criminal victimisation, concern about crime and confidence in the police?- Which criminological theories are interesting in this context and how can questions be designed from these theories?2. How will the themes now represented in the questionnaire be measured in the best possible way? Are there any reasons to remove, The material consists of questions from the safety questionnaire, the total analysis report and individual reports for the local authorities, as well the results and technical information from Mind Research.

ABSTRACTMany wind turbines have problems with icing and there is still no effective method to de-ice without stoppage of production and power loss. Here I therefore consider other methods than those available today, and particularly, I consider how these methods could be applied to wind turbines of the company Oxel. A surface where the water droplets do not attach might be the basis for a useful method. If no water attaches, no ice could form. To accomplish this a hydrophobic surface is nessesary, for example wax.

The purpose of this study is to investigate and describe the role of course books for teaching English to children at intermediate level of primary school in Sweden. The essay is based on a descriptive, qualitative method and interviews have been conducted with seven teachers in different schools, teaching English in year 4, 5 and 6.The result of the study shows that course books have considerably influence on the teaching of English in the schools who took part in this investigation. The participating teachers use a course book as main teaching material and almost everybody follows the traditional routine working with Textbook and complementary tasks in Workbook every week. They base their lessons on course books and use alternative teaching material mainly for fun activities, speaking practice and individualization. Even though all teachers rank speaking and listening as most important for new learners, it is reading which has the largest impact on their teaching.

The point of the study is to investigate educational and vocational counselors' strategies on drop in calls. In order to answer the purpose, the issues concerning the educational and vocational counselors' strategies and guidance models/methods at drop-in calls investigated.Qualitative interviews were conducted with six educational and vocational counselors'.In the study it appears that the educational and vocational counselors' are unable to have any strategies for drop-in conversation because the applicant will come spontaneously and the educational and vocational counselors' lack information about the individual and its purpose of the interview. Guidance models/methods designed to facilitate for the applicant and give them a sense of understanding about them selves there environment and results in a clarification of the election, not often used during the drop-in calls.These are not often used due to the lack of time because the intention of the call is to provide with information to the applicant in as little time as possible. In an educational and vocational counselors? perspective the guidance that is offered at drop-in calls defective..

Abstract (in English)The task for the diploma work was to develop methods for measuring of moisture content by the Karl Fischer method, in jam, jelly sweets, and fudge.The start premises was a for the company whole new equipment, which should be started up. Then programs should be developed for different kind of samples.In the task it was as well included to develop methods for dissolving the different kind of samples, since the Karl Fischer method demands completely dissolved sample material..

Using a qualitative research method to get the empiricism for analysis, we have analyzed advisors and job seekers experience of management meetings at the job center in Halmstad. We used a semi-structured interview form when we collected the empiricism from four advisors, four job seekers and one complementary actor in the form of a job coach, with a hermeneutic approach to interpreting the informants? subjective experience. We also chose to analyze our results using theories by Asplund, Von Wright, Mead, Scheff, Barth and MalténsThe results presented have shown that time is what they all described as lacking. It was found that the job seekers had a reasonable degree of common experience in both the management meetings and the working role of the advisors, while the advisors themselves were divided on how their role would be applied.

The aim of this study was to examine how the activities of two preschools develop the language in matter of the teacher?s work of procedure. The following research questions were essential for the survey and therefore formed the basis of the examination:How do the teachers in both preschools work in a language evolving way?What significance does the environment have for the language development?Are there similarities and differences between the preschools in their language development approach?The study is based on a qualitative method, where the teachers of both preschools were interviewed with the purpose of obtaining information. The teacher?s statements and interviews were analyzed in relation to previous research, where the theories of different writers form the base of the theoretical connection to the study.The teachers view in developing the language regarding to their aspirations in measuring the language an important position in their operation, can be portraied as the conclusions of this study.