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.

This thesis investigates the effects of active ownership on the return on assets (ROA) of Swedish listed companies during the years 2003 to 2013. Active ownership is operationalized based on the probabilistic voting model that is used to calculate the minimum amount of shares the largest shareholder needs in order to possess control of a contested vote at the shareholder meeting. We study the three largest lists on the Nasdaq OMX Stockholm, having 1454 observations from 207 companies to test our hypothesis. The main result from the study is that there's a significant positive relationship between active ownership and ROA during the investigated period. The active owners' relative strength also proves to have a significant positive relationship to ROA..

The market value of forest properties can be assumed to consist of two components, a monetary factor and a non-monetary factor. The objective of this examination paper is to study the impact of non-monetary factors on the values of forest properties in Sweden. This study is based on a population of buyers of forest properties in the southern of Sweden. The results are based on interviews with 54 buyers. Of the purchases were 37 % new purchases.

In Sweden we have a regulated gambling market which means that there are three gambling companies who are operating under the supervision of the Swedish state. These companies have exclusive rights to the Swedish market, divided between them. AB Svenska Spel is one of them and they control all gambling concerning sporting events and the four casinos in Stockholm, Gothenburg, Malmö and Sundsvall. However, since a few years back several Internet-based companies have entered the Swedish market and the competition has become even fiercer in the last years. Due to numerous marketing restrictions the Internet companies have been forced to find new ways to strengthen their brand.

My working process is craft based and influenced by devotion for the textile material and techniques, but the concept is just as important. I mainly do sculptural objects where I treat fascination, frustration and disgust for the human body from a personal perspective. I am also deeply fascinated with Michael Jackson; an iconic figure that I adore above all else. A man with an inner musical ability, dedicated his entire life to tame and signify it through his body. My master work is an investigation where I look upon similarities and connections between my fascination with the body and the admiration and fascination with Michael Jackson.

Pathogenic microorganisms pose a big threat towards food production. Meanwhile, negative impacts on humans and environment are seen by the use of pesticides. Biological control agents are an alternative to the use of chemical pesticides, and plant-growth promoting rhizobacteria, such as Bacillus amyloliquefaciens has been shown to have good properties as biocontrol agents. Before these bacteria can be used commercially their impact on other soil organisms has to be evaluated. This thesis looks into what biocontrol bacteria are and how they might affect earthworms.

AimThe aim of this study was to survey the physical fitness in boys with type 1 diabetes (IDDM). The results were compared to a control group with healthy boys that have preformed the same tests in other studies. Our questions were:1. How does BMI relate between IDDM-children and healthy peers?2.

Med utgångspunkt i det moderna arbetslivet och de krav som detta medför på dagens medarbetare har den aktuella studien valt att inrikta sig på den psykosociala arbetsmiljön. Studien utgår ifrån Julian Rotters teori om locus of control. Syftet med studien är att undersöka hur inre och yttre kontrollfokus påverkar upplevelserna av möjligheten till återhämtning och delaktighet. Studien är kvantitativ, och har genomförts på uppdrag av en medelstor kommun i Västsverige. Webbaserad enkät har använts.

Efficient energy use in restaurantsUmeå Municipality wishes to combine energy issues with food control, and thus help restaurants to become more energy efficient. During March and April 2010, I visited seven restaurants and interviewed restaurant personnel about current state and application of kitchen appliances, using a checklist to make sure that the same questions were asked at all restaurants. The restaurants were all different sizes and offered different kinds of food. The study mostly focuses on energy efficiency by behaviour and not on location or technology. Almost every restaurant that was visited had the potential to improve in one or more areas, such as kitchen appliances, lamps and lighting fixtures, heating, cooling and ventilation.

This report describes a thesis done at the Jönköping University of Technology. The aim of this thesis was to create conditions to optimize an existing automatic electrostatic coating system by changing the technology for dispensing lacquer. To select the technology, a study of different dispensing techniques carried out which concluded that the piezoelectric membrane and electrostatic atomization are the most interesting techniques.In order to perform tests with dispensing techniques a demonstrator has been optimized. The controller and PC software of the demonstrator has been programmed to be able to send out PWM signals that control the dispensers. An adapter card was designed to control the piezoelectric membrane and a steering link to the electrostatic atomization has been developed for PWM signals up to 500V.The work has laid ground for a demonstrator where further testing of the dispensing technologies can be performed..

AimThe purpose of this degree thesis was to find out what strategies and behaviours earlier overweight individuals have used to maintain their weight loss.- What strategies did the participants use to loose weight?- Which behaviours are related with maintained weight loss?MethodThe study is based on an encase research with earlier overweight individuals who had lost weight with help of the Cambridge method. The chosen population who further more had maintained their weight for over one year have answered questions about their successfully maintained weight loss.ResultsThe results are based on 32 overweighed individuals, 9 men and 23 women, who had maintained their weight loss for over one year. After the initial weigh loss by help of the Cambridge method their main strategy was to change eating behaviour ? by eating on regular schedule, choose food with less fat ? and to increase their physical activity.

A majority of Swedish consumers have a positive attitude towards organic production and the number of organic products on the market is increasing. Despite these positive trends, there are still relatively few consumers who choose to buy organic produced products. According to statistics, only 3% of the total sales of food consist of organic products. The aim with this essay is to understand what is needed, both from the grocery store and the consumer's point of view, to increase the consumption of organic food. Information has been collected partly through questionnaire with consumers and partly through analysis of sales statistics for a selected numbers of products. Then the empirical material have been analysed in the light of a combination of the Behavioural Perspective Model (Foxell, 1997) and Kotler's Four P:s (Kotler, 2002). Consumer's willingness to buy organic products is influenced by a number of different factors. One important thing is if the grocery store offers a behaviour setting that stimulates the consumers positive attitude and facilitates their possibilities to collect new information. Furthermore, the store needs to offer a broad and well-visualised selection of organic products.

This essay shows how administrators in two different organizations are experiencing freedom of action in their work situation. The essay is made based on a qualitative method and interviews were used to implement the study. People chosen for this study are four administrators at a governmentagency - the Social Insurance agency, and four municipal officers from different Social service offices in southern Sweden. The theoretical framework consists of Weber's theory of bureaucracy, and his discussion of the legal authority. The analysis is designed as adiscussion of the parts that were especially prominent during the interviews.

This study aimed to investigate whether lambs show anticipatory behaviours in a holding pen prior to entering a known arena, whether the holding pen experience prior to the arena exposure affects their play expression in the arena and whether their behaviour (in home pen) is affected if arena access is denied. Twenty pair-housed male lambs (average 14 weeks old), were exposed, in chronological order, to five treatments. Holding pen treat-ment (HP-control): Each pair was led into a holding pen (2.7 m2) and remained there for 5 minutes before returning to their home pen (6 m2). Holding pen ? arena treatment (HP-A): Each pair was led into a holding pen for 5 min and then was allowed access into the arena (22 m2, containing two hanging chains, one ball and one platform) for 15 min before re-turning to their home pen.

Abstract Aim: Since there is a lack of research based educational interventions concerning the relationship between coaches and young athletes, the aim of this study was to implement and examine the effects of sport psychology intervention for coaches in a track and field club. The research questions were: What are the effects of an educational intervention for coaches, with focus on a motivational climate, on: A) the coaches´ coaching approach B) their athletes´ goal orientation and C) their athletes´ perceived competitive anxiety?Method: The coach education stretched over two months and consisted of four two-hour lessons with focus on motivational climate, goal orientation and sport anxiety. Six coaches (three females, three males), aged 38-52 (M=44.33 years, SD=4.84) and their 59 athletes (27 males and 32 females) aged 12-14 (M=13.10 years, SD=0.82), participated in the study. A control group of 35 athletes (10 males and 25 females), of the same age (M=13.46 years, SD=0.70) and with similar demographic data, was also recruited.