Hägglunds Drives in Mellansel, Sweden, manufacture radial piston hydraulic motors foremostwithin applications in the industry. These motors have several sliding contacts, one of these, isthe contact between piston ring and cylinder bore. The radial piston hydraulic motors advantageis to produce high torque in very low rotation velocity, this result in that the maximum slidingvelocity between piston ring and cylinder bore, during the whole stroke, is very low. Theconsequence of this low sliding velocity is that the contact between piston ring and cylinderbore, during the whole stroke, is bound to the boundary lubrication regime. This result in, thatthe piston ring is exposed to wear, thus affect the service life of the complete hydraulic motor.To minimize wear of piston ring, it is essential to determine the oil film thickness between thepiston ring and cylinder bore.

This essay is a comparative research between pupils' experience of how the headmaster, teachers and other school staff interpret and apply the democratic education. The results are based on a survey carried out in senior high school, as well as interviews with the school staff. The democratic education charge has a long history of Swedish school system and is the basis for the maintenance of a democratic society. Both policy paper of state investigations and researchers in the field, regard to school as the primary and unique instance in order to promote and develop democratic skills in children and young people. However, it is shown that those who come out from school lack of knowledge and awareness of democracy and the will to speak their mind.

The purpose of this study was to examine what social workers include in the term "parenting ability". More specifically the purpose was to investigate how social workers view the parenting ability among parents with an intellectual disability. Furthermore the aim was to examine what difficulties social workers come across in their work with families where one of the parents are intellectually disabled. The study was based on six interviews with social workers that specifically work with children under the age of 18, and occasionally come across parents with this type of disability. The interviews were analysed using Donald Winnicott's terms "good-enough-parenting", "holding" and "the holding environment".

ABSTRAKT_______________________________________________________________Margareta Christiansson & Sara JohnssonBarns motorik? En studie om miljöns betydelse för barns motoriska utveckling.Children´s motor skill development?A study of the environment?s importance for children?s motor skill development.Antal sidor: 28___________________________________________________________________________I denna uppsats undersöks lärares upplevelse av miljöns betydelse för barns motoriskautveckling. I uppsatsen tar vi del av forskning kring barns motoriska utveckling samtpedagogers upplevelser och betraktelser av miljöns betydelse och påverkan för barn iförskolan. Vi beskriver även vad som kännetecknar en stimulerande miljö.Studien genomfördes med stöd av intervjufrågor till sex pedagoger och två motorikpedagogervid två förskolor i två mindre kommuner i södra Sverige. Vi tar utgångspunkt i barnsmotoriska utveckling samt i hur miljön kan stärka barns motoriska utveckling.

In this study I have compared two different development methods of reading and writing. I have done this by interviewing five first grade teachers in elementary schools and it is based on qualitative research interviews. The aim of the study was to immerse myself in which methods these five teachers describe that they have used. They got to describe how they work and how they have tought the students to read and write. I have investigated if the teachers think that the computer is a good tool. The investigation also shows if the teachers believe that the students´ writing skills deteriorate if they can use the keyboard instead. I came to the conclusion that four of the teachers used Arne Trageton´s method (2005) which means that the students learn how to write by using to computer.

The stakeholders for requirements elicitation need to be identified at an early stage and their knowledge is the basis for what is to become a requirements specification. Just because a stakeholder holds a lot of expertise and knowledge it does not mean that the stakeholder can communicate the knowledge in a clear way. Validation of knowledge means that knowledge is valued and recognized in a structured way. People and organizations can evolve by exchanging knowledge, experience and skills.  The purpose of this study is to increase the understanding of knowledge management between requirement elicitation and external stakeholders.

The aim of my ?two years master thesis? was to examine school administrators perceptions about important information literacy skills that the students should be able to control, perceptions about what role the teachers and the librarians have in teaching students information literacy and perceptions about the collaboration between these groups. My questions have been: Have the school administrators reflected upon the conception of information literacy? What conceptions do school administrators have about important information literacy skills that the students should be able to control? What role do they consider the teachers and the librarians to have in making all students information literate? How do they consider the collaboration between the teachers and the librarians work? What role do they consider themselves to have on a management level to make all students? information literate? I used a phenomenographical method and carried out six qualitative interviews with school administrators from five senior high schools in the municipality of Gävle. Both public schools and independent schools were included in the study. Most of the school administrators considered information literacy to be the same as criticism of sources, which they also considered as one of the most important information literacy skills.

The Goal with this Master of Science thesis is to expand the possible turbine efficiencymeasurements on an exhaust turbocharger. It was done as a part of the CICERO competencecentre. To feed the turbine with air a special flow rig has been used. Instead of loading theturbine by just restricting the compressor flow a docking system for an electrical dynamometer isdesigned to use the dynamometer as an additional loading source. By using an electricaldynamometer as loading device for the turbine, measurements are not depending on compressorperformance.A large part of the work consists in designing accessories for the dynamometer.

I Kimberley, Sydafrika är tonårsgraviditeter ett utbrett socialt problem. Trots detta finns det inga insatser eller program som aktivt arbetar för att reducera problemet och dess konsekvenser. Däremot är så kallade Life skills-program förekommande i staden. Programmen arbetar för att stärka ungdomars självkänsla, framtidstro och förmåga att ta hälsosamma beslut. Syftet är att utifrån deltagarnas subjektiva upplevelser av Crossroadsprogrammet ta reda på om programmet kan verka som en förebyggande insats mot tonårsgraviditeter.

Precer Group har en patenterad teknologi för förbränning av fasta bränslen, till exempel pellets eller metallbränslen. Tekniken är användbar till bland annat fordon och nu är deras vision är att skapa en ny typ av miljövänligt och bränslesnålt fordon som drivs av fast bränsle. Det kommer att vara ett lättviktsfordon med seriehybriddrivlina. Drivlinan till fordonet kommer att bestå av Precers förbränningsenhet, en värmemotor, generator, batteri, motor controller och en eller flera elmotorer med tillhörande kraftelektronik.Vi har gjort en studie på vilka typer av elmotorer som kan användas för fordonsdrift och jämfört olika lösningar på vilka motorer och controllers som kan passa till fordonet Precer Group kommer att tillverka. Vi har också gjort en bedömning om det kan vara användbart med regenerativ bromsning i fordonet och på vilka sätt tekniken kan implementeras.Den generator vi anser lämpligast till värmemotorn är en borstlös DC-generator då den har hög toppverkningsgrad och en passande karaktäristik för att användas till värmemotorn.

Schizophrenia can cause symptoms such as auditory hallucinations, delusions, emotional blunting, apathy and lack of motivation. These result in a diminished ability to participate in daily activities and bring the client group into the domain of occupational therapists. The purpose of this literature review is to compile the latest findings in occupational therapy interventions for individuals with schizophrenia. Furthermore guidance regarding the utility of the interventions will be given based on the author?s assessment of the evidence in the 22 articles included.

The aim of this study was to reach a better understanding of voluntary work and its possible influence on the work role. Based on a phenomenological approach, five voluntary workers from the leisure field were interviewed. The interpretation of the empirical data was based on the Humanistic psychology and its theories about personality, self-realization, motivation and emotion. The results show that the motive behind the voluntary engagement varied amongst the participants and all of them stated more than one motive. However, social motives, wanting to learn more and develop their skills and also wanting to help others, were the most frequent motives among the participants.

The aim of this Master?s thesis is to investigate if the library can be a real partner for researchers in managing and dealing with their research information. In this study, six researchers have been interviewed about their problems with information management. This study uses the method Critical Incident Technique for the interviews with the researchers. This method focuses mainly on problems and what happens around those problems.

Syftet med examensarbetet har varit den fortsatta utvecklingen mot en tvåtakts motkolvsmotorsom fungerar med hjälp av HCCI-förbränning. Arbetet har haft två övergripande mål. Det förstahar varit att ta fram en stabil testplatform för motortester genom att förbereda en motorprovcellhos avdelningen för förbränningsmotorteknik på KTH. Det andra delmålet har varit att utnyttjadenna testplatform för att utveckla en repeterbar, pålitlig och jämn tvåtaktsförbränning och sedantesta användandet av HCCI-drift.HCCI-förbränning är fördelaktigt då verkningsgraden är högre än för en ottomotor och utsläppenminskas i jämförelse med en diesel-motor. Nackdelen med användandet av HCCI är attprocessen är svårstyrd.

In today?s tough business environment the need for good and efficient leaders are becoming more and more important. The businesses are in constant change, the world is more unpredictable and the competences of the employees are much greater today, which also calls for a new type of leader, a leader who not only is authoritarian, but also possesses soft skills. In this environment where there is this greater focus on leaders, leadership developments have emerged and increased in number over the last ten to twenty years. They try to develop leaders in all domains of their life, both professional and personal and the model we work with in this paper is Total Leadership, this model implies that you try to accomplish being a better leader throughout your whole life as a leader, to be whole, genuine and innovative, no matter career or position in life.