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445 Uppsatser om Leakage diagnosis - Sida 1 av 30

Modellering och simulering av det evaporativa bränslesystemet i en personbil

This thesis work has been performed at the department of diagnosis and dependability at Volvo Car Company, Torslanda. The background of this project is based on interest in ascertaining how different factors possibly can affect a diagnosis method, which has been developed to find leaks in the fuel tank and evaporation system. According to the OBD II requirements leaks with an orifice diameter larger or equal to 0,5 mm, must be detected. The idea of the diagnosis method is to create an over pressure in the system with an air-pump. The current through the pump is measured and correlates to the power consumed by the pump.

Aspergers syndrom : En enkätundersökning om åsikter rörande att Aspergers syndrom försvinner som egen diagnos och införlivas i autismspektrumtillstånd.

AbstractIn 2013, the diagnosis of Asperger?s syndrome will be eliminated as a stand-alone diagnosis, to be subsumed into the existing diagnosis of Autism Spectrum Disorder. In this paper, a study with the objective of emphasizing current opinions regarding the change in diagnosis is performed. Another objective is to examine the connection between identity and diagnosis. The study therefore targets people with a diagnosis, in this case Asperger?s syndrome.The empirical material of the study has been collected through a quantitative web-based survey.

Identifiering av parametrar för tillståndsbedömning av en vattenkraftstation

The report begins with a general inventory of possible technical faults in a hydropower plant and of possible fault indicating measurements. Then an investigation is made concerning a few different faults. Based on this investigation a choice on seal box condition and water leakage is made as problem for a more thorough examination, in which it is concluded that the turbine water leakage is larger when the turbine is put into operation. The examination ultimately results in a computer alarm for faults related to the seal box. Finally a few things are mentioned about flow measurement and pressure measurement in relation to the project as a whole..

Mätning av axiella magnetiska läckflöden i vattenkraftsgeneratorer

This thesis describes a method of measuring axial magnetic leakage flux in an operational hydropower generator. Axial magnetic leakage flux is the magnetic flux at the ends of a rotating generator, which goes through the stator parallel to the rotor axis. This flux can cause circulating currents in the stator iron, giving rise to losses, and can in the worst case overheat a generator, causing it to melt down. To measure the axial flux, and how it affects the generator temperature, a measurement system was constructed on behalf of Vattenfall. The system consists of search coil sensors and a signal-processing unit with amplifiers and active filtering.  To confirm the behaviour of the axial leakage flux and the functionality of the measurement system, a test installation was made.

Att skapa allianser och förståelse. En studie om olika professioners arbete med tonåringar som har ADHD.

The aim of this study was to investigate how various professions within the treatment of ADHD is working with the diagnosis and the importance of the diagnosis has been at work. We also want to investigate what the different professions think of the diagnosis, what it has for opportunities or limitations in treatment. The chosen professions are two nurses, two treatment assistants, a psychologist and a psychotherapist. When we interviewed our chosen professions, we have used a qualitative approach with semistructured interviews. Through our interviews we got the opportunity to take part in the various professions' knowledge and experience of working with teenagers who have ADHD.

Att leva med en diagnos : Utifrån föräldrars berättelser

The purpose of our study was to identify and present experiences encountered by parents with a child with diagnosis. Those narratives are made open for the public. Data has been collected through ten interviews with parents having children with a diagnosis. These interviews have also been complemented by interviews with one child and one youth. The parents and the children who have been interviewed, all have their own stories and experiences of how it is to live with a diagnosis in the family and for all families there are different diagnosis.

Design och optimering av lagertätning : Hos hydrodynamiska oljeglidlager med labyrinttätning

ABB Motors and Generators manufacture large AC machines with oil lubricated plainbearings. The machines have occasional problems with oil leakage from the bearings. aproblem that ABB wants to be solved.In this thesis the cause of this leakage were investigated, with focus on the bearingseals.The purpose of this work was also to suggest amndments for preventing thisproblem. , and to suggest improvements that can prevent this. The first step was todo a literature survey of earlier work on this problem, study the theory ofhydrodynamic bearings and different types of seals and their properties.

Mätning av Mikroläckage i Dentala Implantat

Osseointegrated titanium implants have become a commonly used method in edentulous jaws and today there are success rates in the magnitude of 82 % in the lower jaw and 98 % in the upper. During first year after implantation a fully normal marginal bone loss of 1-2 mm occurs. If the bone loss continues there is a risk of implant failure. High tensions in bone and inflammation caused by bacteria are possible reasons for this problem. It has been shown that a leakage of bacterias occurs between the parts of the implant and there are theories that this has effects on the marginal bone loss. The aim of this thesis has been to increase the knowledge about microbial leakage with help of in vitro tests and virtual simulations.

Mobilt arbetssätt inom sjukvården och patientens personliga integritet : Klarar patientens integritet att journalen görs tillgänglig för sjukvården mobilt?

In the light of new technology health care is now given the opportunity to form a more mobile way of working that would bring about potential gains in terms of efficiency and quality. On the other hand, a more mobile health care also requires a more generous handling of personal information, something that may raise issues in terms of privacy. This study shows that the privacy of the patient requires two things: (i) that the personal information of the patient is handled in a way that generates her an overall positive expected utility and that (ii) the negative expected utility that each risk of an information leakage causes is offset by the expected utility it also makes possible. The first requirement (i) is shown, in comparison with today?s way of working, to be met due to the potential gains in efficiency and quality in combination with no increase in the probability of informational leakage or negative effects of such a leakage. The second requirement (ii) was also considered met since no separate risks of information leakage could be identified that was not offset by the gains it made possible in terms of expected utility..

ADHD- diagnosen i skolan : En kvalitativ undersökning om fem pedagogers förhållningssätt till diagnosen ADHD i Åk 6-9

ADHD (attention deficit hyperactivity disorder) is a phenomena that is much talked about in both schools and in communities. Today, there is a conflict surrounding the diagnosis ADHD. A part of the conflict takes part between the sociologist Eva Kärfve and Christopher Gillberg, professor in child- and teenage psychology. The roots of this conflict surrounds the much debated line of what is seen as normal and ?too? different, basically how many children that actually should have the diagnosis.

Upplevelsen av att bli diagnostiserad med ADHD i vuxen ålder : En kvalitativ sociologisk studie

AbstractWe have chosen to examine how it can be to be diagnosed with ADHD in adults. Our purpose of this study was to examine the experience of being diagnosed with ADHD in adulthood. We wanted to investigate if people feel that the diagnosis has led to a change and if so, in what way. We also wanted to investigate the impact that the participants attribute the diagnosis. We have made a qualitative study in which we interviewed five men aged 31-45 years, who have all had their diagnosis for a year or more.

Att få diagnosen Asperger syndrom i vuxen ålder : ur ett individperspektiv

The purpose of this study was to investigate and analyse the consequences of being diagnosed with Asperger syndrome during adulthood. My ambition was to investigate the participants? perspective on how the diagnosis affected their lives and relationships with their partners. To answer the purpose three questions were formulated: (1) How did the participants experience being diagnosed with Asperger syndrome? (2) What have the diagnosis meant to the participants? self-image and self understanding? (3) Have the diagnosis influenced the participants? understanding of their partners and have the diagnosis influenced the partners? understanding of the participants? The study is based on qualitative interviews with two men and two women living in Stockholm, Sweden.

Bilprovningen : -Nytt läge på en konkurrensutsatt marknad

The purpose of our study was to identify and present experiences encountered by parents with a child with diagnosis. Those narratives are made open for the public. Data has been collected through ten interviews with parents having children with a diagnosis. These interviews have also been complemented by interviews with one child and one youth. The parents and the children who have been interviewed, all have their own stories and experiences of how it is to live with a diagnosis in the family and for all families there are different diagnosis.

Glidytor och ytjämnhet med avseende på friktion och tätning

Gliding and sealing functions in Öhlins shock absorbing systems sets great demands onthe contacting surfaces. In this particular case, the bushings and the sealings on acylinder piston. The surface wanted is a surface with both low frictional forces and smallleakage. This study was done with the goals of investigating and determining existingsurfaces due to the frictional force and leakage. How can we in an easy mannerdescribe these?A number of ten front forks were part of a main study.

Föräldradelaktighet i förskolan ur föräldrars och pedagogers synvinkel

AbstractThis act is about how five children with dyslexia consider and understands their diagnosis. It is also about their self-image, future sights and about how their school life is compared with before they got their diagnosis. The study is implemented autumn 2011 on a medium-sized school in central Sweden. The survey was implemented through interviews with the five children, of which four was girls and one was a boy. The study shows that the children understand their dyslexia relatively well, but that they experience that it is bothersome to live with dyslexia.

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