Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

In this thesis I discuss and analyze the integration policy of the community Landskrona, if they have any at all and how they in that case use it in their daily work to counteract the obvious problems with segregation, racism and negative attitudes towards people with other ethnic background than Swedish.During the second half of the 20th century Sweden has received a lot of immigrants who built our country and contributed to the rich variety of people we see today. Landskrona was one of the towns who received a lot according to its size, and with the economic crisis in the 1990s it was easy to blame the immigrants for our own deteriorated situation.Today Landskrona is working for an implementation of integration policies in all institutions and organizations to make it a matter of course just like equality. It is not the ethnic background that is the problem; it is being an outsider and economically segregated that lead to resistance of the society. The community is prioritizing the four areas job for everyone, living, education and culture..

The purpose of the study was from the perspective of young people that has completed a stay at HVB-home. The respondents are between 15-21 years both boys and girls. The basic questions were: How do the respondents look upon this HVB-homes service process? How do the respondents look upon this HVB-homes service contents? How do the respondents look upon this HVB-homes service regarding available information and how the staff is available? What positive and negative experience do they have from their stay at the HVB-home? We also wish to get a picture of what is important to change to improve the quality on this HVB-home. To receive answers to those questions we formed a questionnaire.

The purpose of the study was from the perspective of young people that has completed a stay at HVB-home. The respondents are between 15-21 years both boys and girls. The basic questions were: How do the respondents look upon this HVB-homes service process? How do the respondents look upon this HVB-homes service contents? How do the respondents look upon this HVB-homes service regarding available information and how the staff is available? What positive and negative experience do they have from their stay at the HVB-home? We also wish to get a picture of what is important to change to improve the quality on this HVB-home. To receive answers to those questions we formed a questionnaire.

The purpose of the study was from the perspective of young people that has completed a stay at HVB-home. The respondents are between 15-21 years both boys and girls. The basic questions were: How do the respondents look upon this HVB-homes service process? How do the respondents look upon this HVB-homes service contents? How do the respondents look upon this HVB-homes service regarding available information and how the staff is available? What positive and negative experience do they have from their stay at the HVB-home? We also wish to get a picture of what is important to change to improve the quality on this HVB-home. To receive answers to those questions we formed a questionnaire.

The purpose of the study was from the perspective of young people that has completed a stay at HVB-home. The respondents are between 15-21 years both boys and girls. The basic questions were: How do the respondents look upon this HVB-homes service process? How do the respondents look upon this HVB-homes service contents? How do the respondents look upon this HVB-homes service regarding available information and how the staff is available? What positive and negative experience do they have from their stay at the HVB-home? We also wish to get a picture of what is important to change to improve the quality on this HVB-home. To receive answers to those questions we formed a questionnaire.

The purpose of the study was from the perspective of young people that has completed a stay at HVB-home. The respondents are between 15-21 years both boys and girls. The basic questions were: How do the respondents look upon this HVB-homes service process? How do the respondents look upon this HVB-homes service contents? How do the respondents look upon this HVB-homes service regarding available information and how the staff is available? What positive and negative experience do they have from their stay at the HVB-home? We also wish to get a picture of what is important to change to improve the quality on this HVB-home. To receive answers to those questions we formed a questionnaire.

In cooperation with the Gislaved company Lerocon AB [1], a separation module wasdesigned as a further supplement to the Module System. The aim of theprojectimplementation was that the separation module could be flexible enough to feed themetal pieces, screws, nuts and other items with large variations of size, appearance andmaterial composition. The module should also be cost effective to manufacture.A separation module is a design which is ment to streamline the work in industries withautomation of the lineoperations. The module feeds the details such as screws, nuts, washersand pieces of metal in a continuous flow in which traps separate the details from each other.Traps may vary depending on the purpose and of the details that are fed. Perhaps it isimportant for the user that the detail-orientation is right after the separation module, whichmeans that all the pieces witch aren´t are fed back in return.For companies and industries in lineoperations that can be made more efficient withautomation, are production flow an important watchword.

Aid effectiveness is a reoccuring theme in the social sciences. Maybe rightfully so, as development is slow in many parts of the developing world. Core literature on the matter seems to suggest that aid effectiveness is contingent on recipients? level of corruption. Assuming this to be true, I examine the EU?s disbursements of Official Development Assistance over the past decade by running regressions: is there a relationship between the level of aid received, and a country?s level of corruption? As the EU is one of the largest donors of foreign aid globally, and has the power to shape the global foreign aid agenda, this question puts to the test whether the EU is leading the way, or rather is an obstacle in front.

Bravida is one of Scandinavia's leading suppliers of technical installations and services. According to Bravida an installer loses around 35 per cent of their daily work. It?s the time aspect that?s going to be examined in this thesis. The purpose of this thesis is that the student in question is to investigate the activities of the installers that works with this project, identifying where and how time losses occur and come up with suggestions for improvement.Methods used in this work is literature studies, observational studies and interviews.

This thesis analyzes the effects of different fertilization strategies on forest management at Holmen Skog in Umeå district. Harvesting volumes, net present values and fertilization intensity are presented for each fertilization scenario. The planning reserve (percentage area older than minimum final felling age) was also analyzed in this study.The thesis covers the analysis of five different fertilization scenarios, varying in fertilization intensity, from no fertilization at all, to fertilization at every harvesting operation (thinning or final felling). A sub-study was also carried out so the reader in detail can see how the different fertilization scenarios affect individual forest stands of different nature. The analysis has been done with the planning tool PlanWise, which is an application of the Heureka analysis and planning system.

After Sweden became a member of the European Union, EU, the debate regarding the Swedish participation in the EU?s currency co-operation, the European Monetary Union, EMU, has been intense. One of the biggest issues has been how our national economic politics will work within such a monetary union. What instrument will remain for the national economic politics within the EMU are highly uncertain. The question whether we will be able to affect our own economy or not has long been the essence in the Swedish debate.

This thesis aims to analyse a time series containing the annual accumulation rate of minerogenic matter in the lake Kassjo?n. First there is a theoretical survey of some frequently used tools for the analysis of time series in the time domain and in the frequency domain. This survey is followed by a simulation study that illustrates how the theoretical tools work in practice. After this, the time series "toolbox" is used to analyse the time series from Kassjo?n (5701 data points).

The purpose of the study was from the perspective of young people that has completed a stay at HVB-home. The respondents are between 15-21 years both boys and girls. The basic questions were: How do the respondents look upon this HVB-homes service process? How do the respondents look upon this HVB-homes service contents? How do the respondents look upon this HVB-homes service regarding available information and how the staff is available? What positive and negative experience do they have from their stay at the HVB-home? We also wish to get a picture of what is important to change to improve the quality on this HVB-home. To receive answers to those questions we formed a questionnaire.

The purpose of the study was from the perspective of young people that has completed a stay at HVB-home. The respondents are between 15-21 years both boys and girls. The basic questions were: How do the respondents look upon this HVB-homes service process? How do the respondents look upon this HVB-homes service contents? How do the respondents look upon this HVB-homes service regarding available information and how the staff is available? What positive and negative experience do they have from their stay at the HVB-home? We also wish to get a picture of what is important to change to improve the quality on this HVB-home. To receive answers to those questions we formed a questionnaire.