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.

This study sets out to investigate how the roll of the teacher is constructed in the Swedish Teachers? Unions trade publication. Based on the theory of social constructionism we have used the method of critical discourse analysis to establish dominant trends and patterns in how the roll of teacher is constructed in editorials in Swedish Lärarnas Tidning. We have established that the conflict between a modernist school tradition and a postmodern society has resulted in a dominant, traditional teacher discourse which is being simultaneously challenged by both a market-orientated discourse and a professionalization discourse. Furthermore, we attempt to highlight how these ?ideal? constructions can create problems in terms of identity construction for teachers.

During spring 2012, six students at the Royal Institute of Technology in Stockholm carried out agroup project in the field of mechatronics as part of the thesis for the bachelor degree. The resultwas a robot with active balancing and the purpose of this report is to describe the development,manufacturing and problems that arose during the project. The finished robot has two wheelsmounted in line with each other, like a bicycle. Measurement data from an accelerometer and agyroscope are used together in a complementary filter for determining the angle from the verticalplane. For balancing, a PID controller was used to control the rotation of a reaction wheel, whenaccelerating causes a straightening torque.

Med dagens teknologi kan man genom fotografier inte bara avbilda verkligheten, utan även skapa alternativa verkligheter. Den här studien har fokus på hur man kan skapa fotorealistiska montage och hur digitaliseringen av fotografi har påverkat fotografiets position som sanningsvittne. Genom en teknisk undersökning har två montage skapats i syfte för att granska tillvägagångssätt i skapandet av fotomontage. Det resultatet visade är att det är möjligt att kombinera fotografier till ett montage, som kan upplevas som fotorealistiskt på ett sömlöst och enhetligt sätt. Med hjälp av tidigare forskning och den tekniska undersökningen drogs slutsatsen att skapandet av sömlösa montage inte är oöverkomligt och att det bara är fantasin som sätter gränser då ett montage kan jämföras med en tavla.

Drain water heat recovery is an uncommon measure in multi-unit residential buildings. There istechnology available for the purpose but the knowing and experience of the heat recovery systems islittle. The purpose of this thesis is to evaluate the future potential of drain water heat recovery inmulti-unit residential buildings.A major part of the multi-unit residential buildings in Sweden were built during modernismen andrekordåren (1940?1975). Many of the buildings have worn out drain and water supply systems andmany are in need of a general refurbishment.

In the last decades, high speed cutting has become an attractive technology in the wood industry. The possibility of reducing global costs in addiction with an increase in productivity, were the main reasons for the enlargement of the use of this technology. As usual, these advantages are accompanied by disadvantages that should be carefully analyzed. If on the one hand cutting forces are reduced with increasing cutting speeds, on the other hand, the centrifugal forces affecting the tool are higher. Exposed to such high loads, there is a considerable risk of tool failure that embeds hazards for both machine and workers.

This study has been conducted in order to try to clarify how one as a piano teacher, by the choice of teaching material and method of teaching, can influence the process of learning. The study deals with novice teaching and more specifically first semester teaching. I have studied three books, their methods and how they take on the task of introducing music and piano playing to novice students. I studied three groups of novice piano students during the autumn of 2005. For twelve lessons each class worked with one of the following three books: "Vi spelar piano 1" by Carl-Bertil Agnestig, "Pianogehör 1" by Åsa Söderqvist- Spering and "Spela piano med ADAM".

I am a glassblower and I am a woman. In this project I've been working with alternative representations of the female body, muscles and technology. Mouthblown objects contains traces of body and form representations.I've been using muscle sensors to collect data from my arms while I blow glass. A special has made 3D-models from the collected data and I've blown these viritual objects in glass.My work is based around issues like: What happens when I measure my muscles? Am I (and my process) affected by the data gathering? How can I create alternative representations of the female body? What is the relation between glassblowing, the objects, body and gender?.

The overall aim of the study was to take part of teachers' experiences and work force mother-tongue education and literacy development in the Sámi School. The study was conducted through interviews with twelve teachers who teach at two Sámi schools. The focus has been on looking how to work with native speakers teaching at the Sámi School, what factors promote / hinder students' development of their first or second language, and the importance of collaboration between the schools` various professions work with multilingual students reading and writing skills. Through interviews of various categories of teachers, I have tried to visibility problems of the education of minority language children and their reading and writing skills. I discuss the teaching, the importance and the lack / availability of communication and consensus between different categories of teachers.

RISKfree ? ett system för riskhantering inom programvaruprojektI dagens IT-centrerade värld sker utvecklingen av hårdvara och programvara i en rasande takt. Om ett företag skall ha möjlighet att vara konkurrenskraftigt i denna utvecklingstakt, krävs det snabba och effektiva metoder i utvecklingsprocessen. Dessa krav från omvärlden på nya och mer komplexa produkter och tjänster innebär ofta nya och större risker för ett utvecklingsprojekt; både ekonomiska som tidsmässiga.Analyser av programvaruprojekt som har misslyckats visar att många av deras problem och risker kunde ha undvikits eller åtminstone drastiskt reducerats med hjälp av riskhantering. Oftast är det en optimistisk entusiasm över projektet som överskuggar viktiga varningssignaler om risker och problem enligt B.W.

This study examines assessment and how the teaching staff at one school reason around equivalent assessment. More specifically, it aims at studying what obstacles and possibilities the teachers identify to achieve this. Furthermore, the study wishes to gain insight about the current state of the equivalent assessment within the examined teaching staff. The study is based on five semi-structured interviews as well as previous research on the subject matter. To deepen the understanding and highlight case problems that surround assessment, the participating teachers also assess an authentic essay.

The purpose of this essay has been to identify a couple of different factors that matter when a teacher chooses method and raw material for teaching his students. The person interviewed is a man, whose lesson I also observed. The result shows that there are several factors of great importance for his choice. My conclusion of this is that this teacher?s choice depends on the school as institution with all the people that operate there, the composition of the students and the school?s curriculum, but this teacher?s pedagogical basic view also has a great importance for his teaching..

The aim with this thesis is to develop a plugin; Lovefish, for the purpose of allowing non-realistic renderings (NPR) for visualisation in Newtek Lightwave3D. The main purpose with Lovefish is to offer textured tones, something that has not been offered before by any previously existing shader for Lightwav3D. The textured tones are a substantially widening of what is possible to imitate in the field of classical art techniques. Among others has a number of SIGGRAPH papers has been the foundation and a source of inspiration for what has been achieve in this project. Further has this thesis treated a number of questions: what is non-photorealistic rendering is and how it works; an overview of the Lightwave3Ds software development kit (SDK)..

Most of my 16 students show a negative attitude towards mathematics and have difficulty understanding why they need mathematics to work as cooks. Their lack of knowledge has a negative effect on their work in the kitchen because they cannot master relatively simple mathematical solutions. The purpose of this study is to examine if an integrated working method of the subjects mathematics and cooking can change students? attitude towards mathematics and increase their understanding of the value of it in restaurant work. An integrated working method means to integrate the core subjects with programme specific subjects and that teaching is directed towards the main features of the vocational programme in order to create a holistic view.A theory of action research has been applied in this study, aiming to change something perceived as problematic through combining theory and practice in the cooking subject.

Uppsatsen gör en första ansats till redogörelse för smygteknikens taktiska implikationer.Vilka möjligheter finns med smygtekniken mot en kvalificerad motståndare under väpnad strid? Detta koncentreras till tre olika områden: duellstrid, underrättelseinhämtning och vilseledning. Med avstamp i flottans gamla reglemente, TRFL, via litteratur i ämnet, och slutligen med intervjuer dras slutsatser på huruvida sjötaktiken påverkats, eller kan påverkas av signaturanpassningen.Slutsatserna är, förutom att fortsatt forskning behövs på området, att det är av största vikt att fartygschef har adekvata beslutsunderlag angående fartygets signaturer, och att signaturanpassningen, rätt nyttjad, ger taktiska fördelar..