Because of new emission and on board diagnostics legislations, heavy truck manufacturers are facing new challenges when it comes to improving the engines and the control software. Accurate and real time executable engine models are essential in this work. One successful way of lowering the NOx emissions is to use Exhaust Gas Recirculation (EGR). The objective of this thesis is to create a mean value model for Scania's next generation EGR system consisting of a poppet valve and a two stage cooler. The model will be used to extend an existing mean value engine model.

Linux is a growing operating system in embedded systems. Today, Linux is not only in heavy servers but also in cell phones, PDAs, cameras and other devices running on battery power. While current technology is more energy efficient, more and more technologies are implemented into a single unit resulting in an overall increase of power consumption.Low power consumption is an increasingly important feature of a system today. Lower power consumption means lower costs, less environmental impact, and longer life for applications that runs on batteries.This work compiles methods to reduce power consumption of Linux systems. The work includes examining whether the available opportunities are platform-specific or of a more general nature.

Marknaden för mobila system har utvecklats enormt snabbt de senaste åren. Idag är det ett område med en allt större omsättning och det har vuxit fram som en helt ny gren inom Software Engineering. Utvecklare av mobila applikationer står ständigt inför en utmaning när det gäller att välja vilket mobilt system man ska satsa på när man utvecklar applikationer. Valet av system kan vara helt avgörande för om man hittar rätt målgrupp av konsumenter och därmed kan generera tillräckligt med omsättning för att driva lönsam utveckling av applikationer. Det räcker inte att enbart kolla på vilket system som har mest användare eller vilket system som genererar mest omsättning, utan man bör noggrant överväga de förhållande som gäller för just den applikation som ska utvecklas. Genom att följa denna guiden och överväga de olika faktorer som vi har sammanställt så kan man som utvecklare göra ett val som är baserat på aktuella marknadsundersökningar.

The Dairy business is changing a lot because of some scandals in the agricultural area for example the BSE crises in Great Britain. Because of the scandals the food industry and the farm association have created a certifying system; IP-Sigill Swedish standard system. We contacted Skånemejerier as they have been successful in the certifying area. They asked us if we wanted to do a study in the certifying area of dairy farmers. At Skånemejerier they gave us most of the literature in the area about certifying. The result of the study, is that we have taken up the most common remark?s. The most frequent remark is journal over routines in management of dairy cows on daily basis. Another remark of the study is that the frequency of the remarks decreases with greater production..

This essay examines the Alberte triology, by the Norwegian writer Cora Sandel, from a gender/feminist perspective. Taking Yvonne Hirdman's theory about the gender system as a starting point I will show how the living conditions and the different roles of men and women are represented in the novel and how they are changing during the centuries before and after the First World War.I am particularly interested in Alberte, the main character, what attitude she takes to her position in the gender system and in what way she differs from the traditional female model. Is she a New Woman, a different ?species?, who doesn't fit into the rigid gender system? Does the New Woman have a male counterpart, and is he to be found in the novel? Does the novel give a positive vision of a future where men and women can meet as equals?.

Through previous studies during my education, I have experienced that chemical deicing road salt is a known problem, mainly in southern Sweden. Road salt causes damage to the environment and also damage to vehicles and structures such as bridges, etc. Road salt causes vehicles and steel constructions to rust, leading to increased costs for repairs of damage to structures. Road salt also causes damage to the plants and the economy to suffer, when plant material and soil needs to be replaced. In order to get closer to a solution, I put up three questions.

This report is introduced with a presentation of fundamental electromagnetic theories, which have helped a lot in the achievement of methods for calculation and design of microstrip transmission lines and circulators. The used software for the work is also based on these theories. General considerations when designing microstrip solutions, such as different types of transmission lines and circulators, are then presented. Especially the design steps for microstrip lines, which have been used in this project, are described. Discontinuities, like bends of microstrip lines, are treated and simulated.

Forskningsrön tyder på att organisatoriska och sociala faktorer är den största anledningen till att 90 % av implementeringarna av ERP-system misslyckas. Förespråkarna för involvering av användarna för lyckad implementering är många. I denna studie har vi belyst en fallstudie i en relativt liten livsmedelsorganisation där det har studerats vikten av kommunikation och kommunikationsrutiner för att ta till sig ett nytt system samt hur detta har påverkat organisationens anställdas acceptans gentemot det ERP-system de implementerat. Denna studie visar att om kommunikation innefattar kunskapsförvaltning och kunskapsspridning kring det ERP-system som implementeras kan det innebära större acceptans hos användarna, då de får förståelse för varför saker och ting sker samt varför deras arbetsuppgifter ser ut som de gör, en kontext kring sina aktiviteter. Vi fann att kommunikationssättet, det vill säga huruvida den var formell och rutinartad eller informell, inte påverkar utfallet av användarnas acceptans gentemot ERP-systemet, så länge kontexten för aktiviteten förmedlas.

Animal welfare is of increasing concern in present society. In commercial pig farming, animal welfare problems are common. One of the causes for these problems is the barren environment in which pigs are housed, which can cause oral manipulation of pen mates. Providing straw might be one solution to this problem. Another solution could be reached through genetic selection.

Uppsala County has ambitious environmental aims for the planned residential area inÖstra Sala backe. In this thesis different energy sources have been evaluated todetermine which system that would be most favorable given currently availableinformation about the project. Planned energy usage has been divided into tap waterheating, space heating and power. Three base case scenarios were made with districtheating, small scale bio fuel and heat pump. Solar power and solar heating were thensimulated and the production from the two could individually be deducted from theenergy need in the base cases, constituting 9 different scenarios.

Organisationsförändring behövs för att bevara hög effektivitet i organisationer när omvärldenförändras. För större organisationer behövs en tydlig avgränsning arbetas fram innanorganisationsförändringsarbetet startar. Landstinget i Värmland behöver utföraorganisationsförändringar på grund av ett föråldrat IT-system som används i verksamheten. Enmålgruppsanalys har genomförts av IT-systemet vilket resulterade i tre målgrupper. Intervjuer medpersoner ur de tre målgrupperna har genomförts vilket resulterade i data som användes till attanalysera och svara på rapportens två forskningsfrågor.

This master thesis is an attempt to study the interface in itself, where the human meets the machine and the problems that can arise. I study a particular interface, namely the OPAC of Libra III. In 1999 IFLA presented recommendations for what an OPAC shall contain, and in one part of my master thesis I compare Libra III with these recommendations from my opinion. In another part of my master thesis I make an investigation where I let five by me chosen persons answer some questions from me, both by doing and verbally. I draw the conclusion that Libra III follows most of the recommendations of IFLA in a sufficient way.

The purpose of this thesis was to ease the implement of an upcoming intranet for a target group who had used the previous system to an unwanted low extent. After qualitative and quantitative studies I found that the users of the current intranet thought it was hard to navigate and did not understand neither the relevance of it in their own work nor knew which information it contained.Since I did not have access to the new system by the time of the making of this thesis I concentrated on rectifying possible problems with the new system regarding the relevance and the contained information. With basis in a number of theories I produced an information brochure, whose object was to inform about the content and to convince the target group of the relevance and utility of the new intranet. .

Många lärosäten använder idag fler än en lärplattform, ibland inom en och samma institution, program eller kurs. Uppsatsens syfte var därför att ta fram riktlinjer för vad som bör beaktas vid val av lärplattform för att fylla organisationens behov och passa dess förutsättningar. Undersökningen genomfördes med en kvalitativ datainsamlingsmetod där vi genom intervjuer med fem lärare vid Linnéuniversitetet samlade in deras krav. Resultatet blev en checklista som listar lärarnas krav och genom att kritiskt granskat litteratur kan vi rekommendera organisationer vad de bör överväga inför implementationen av en lärplattform..

Sun Microsystems chose its own Open Source path by not following competitors in their commitment toGNU/Linux. Sun instead created its own Open Source project from the source of Solaris under the name ofOpenSolaris. The business model of OpenSolaris belongs to the new and more commercially viable OpenSource, referred to as OSSg2. This survey was based on articles on the adoption of Open Source in organizationsand István Orci?s publication Kritiska IT-System.