Sökresultat:
1789 Uppsatser om Mechanical engineering - structural dynamics - Sida 58 av 120
Studie av mobilt integrerat navigationssystem
Saab Bofors Dynamics har som huvudsaklig verksamhet att utveckla missiler. Ofta krävs det att någon form av navigationsfunktion byggs in, och eftersom det inte är lätt att testa nya lösningar och algoritmer direkt på missilerna har man tagit fram två autonoma testplattformar, Freke och Gorm, i form av självgående bilar som kan ta sig fram inomhus i t.ex. en korridor.För navigation utomhus lämpar sig GPS väl i många situationer, men i autonoma sammanhang är det inte tillräckligt. GPS är inte alltid tillgänglig på grund av att man inte alltid har fri sikt till minst fyra satelliter och i militära sammanhang är den också lätt att störa ut. Därför förlitar man sig hellre på noggranna tröghetsnavigeringssystem (TNS) som kan ge data i 100-tals Hz, och kompletterar med GPS för att korrigera för avvikelser.
Hellre överkvalificerad än undersysselsatt - om övergångsfrekvensen till högre utbildning i Sverige under 80 år
This essay aims to explain the fluctuations in the Swedish transition rate to higher education between 1923 and 2002. With theories of human capital, and screening, as points of departure, seven variables are selected and their correlation with the transition rate investigated by use of graphs and tables. The variables are unemployment, youth unemployment, the supply of academics, cohort size, number of high school graduates from programs preparing for ensuing studies, relative wage trends for worker categories with differing levels of education, and structural phase. Results show that no single variable nor the theories of human capital or screening can explain the fluctuations in transition rate in full. Instead I propose a theoretic model which amalgamates the above and places risk aversion as the driving force behind the individual?s educational decision.
När kön gick från särskild till likställd diskrimineringsgrund i "världens mest feministiska samhälle" : En diskursanalys om hur könsdiskriminering framställs i riksdagsdebatten kring förslaget om en sammanhållen diskrimineringslagstiftning
Sweden is seen as one of the world?s most feminist societies. In January 2009 all grounds of discrimination were merged into a common law; Diskrimineringslagen. This paper examines representations of gender discrimination, linked to feminist perspectives, in the Parliamentary debate on Sweden?s new discrimination legislation through a discourse analysis.
3D-modell av torkcyklon - Examensarbete på Metso Panelboard AB i Sundsvall
This Bachelor of Science thesis was carried out at Metso Panelboard AB, located in
Sundsvall, Sweden. The work lasted for 10 weeks and began at the end of February 2007.
Metso Panelboard is one of the leading suppliers of complete lines, single machines,
engineering knowledge and after-market services to the fibreboard industries.
The task involved building a 3D-model of a dryer cyclone in the CAD-program
Pro/ENGINEER. A dryer cyclone is the part where the tree fibres are dried in the process of
manufacturing fibreboards. Currently, it takes about two weeks to draw a dryer cyclone. By
creating a 3D-model of it, which should have the functionality to be generated to different
sizes, the goal is to decrease the drawing time to about 20 hours and to increase the quality of
the work.
This report includes the fundamental theories behind the manufacturing of fibreboards with
focus on the dryer cyclone.
Landsting möter landsting i gränsöverskridande samverkan. Om förändring och beslutsfattande i offentlig verksamhet.
A current debate is going on in Sweden about the health-care organization, how it is structured today and how it should be structured in the future. Despite major changes in the county council structures, they still got problems with for instance economy and the providing of staff. As an answer to these problems new solutions are being developed.In this thesis I examine such a solution consisting of cooperation between county councils. The aim of the thesis is to examine how and why the county councils in Sörmland and Västmanland have made a decision regarding cooperation over the administrative border.My contribution is to construct a model over change and decision processes that can be used in other cases as well. The conclusion is partly that the decision to cooperate is built on changing structural factors, such as economy, demography and medical development.
Standardisering av snöröjningsplan : Instruktioner, råd och tips för snöröjning av tak med stora spännvidder
The Swedish winters 2009/10 and 2010/11 were rich in snow and many roofs collapsed, mainly largespan frames. Investigations were made and the amount of snow was not the primary cause, insteadthere were several other causes. One of these was that in some cases roofs were shoveled in anunfavorable manner which affected the load patterns negatively, so causing the roofs to collapse.Most people lack the knowledge of how shoveling will affect the roof. Had there been an increasedunderstanding regarding shoveling, some roofs could have been prevented from collapsing.Through both qualitative and quantitative research in the form of interviews and calculations thetheoretically best ways to shovel a selection of roof types is presented in the report. The roofstructures covered are 3-compartment, continuous and Gerberspliced metal roof decks.
Riktlinjer för yttre hot - En inblick i riktlinjer angående yttre hot för Karlskrona kommun
Målet med detta arbete är att bättre förstå hur riktlinjer ska skapas och
användas. Utgångspunkten har varit att media uppmärksammat ett flertal
incidenter där främmande människor tog oönskad kontakt med olika förskolor i
Karlskronaområdet. Författarna ville då se över hur kommunen arbetade med
frågor om yttre hot vilket medförde att arbetet utmynnade i ett försök om att
bättre försöka få förståelse för riktlinjer och dess användning då kommunen vid
arbetets start saknade riktlinjer för yttre hot av denna typ. Metoden som
använts är av kvalitativ art i form av intervjuer med några säkerhetsansvariga
för förskolor i andra svenska kommuner. Resultatet av dessa intervjuer
tillsammans med kompletterande material från generella tillvägagångssätt för
identifikation och analys av säkerhetsproblem resulterade i ett förslag på
arbetsmetoden vid skapandet av riktlinjer samt en påminnelse om att se över
befintliga riktlinjer för yttre hot..
Att förstå friskvård och hälsa ur ett individperspektiv : Intervjuer med anställda inom verkstadsindustrin
The aim of this qualitative study was to give an deeper understanding of how employees in the engineering industry experienced health education and how they understood and gave meaning to the terms health and health education. The study was based on interviews with eight men and women who participated in a health education project which had been held on their workplace. When the study took place the interviewees were in the age between 28 and 58 years. The results indicate that the employees understood health as a combination of both physical and psychological factors. The positive aspects described by the interviewees based on their experiences from the project were increase physical activities and that the project had helped them to get a better diet.
Fuktskador i ytterväggar på grund av vattenintrång
Moisture damage in buildings is a serious issue that leads to problematic consequences and high economic costs. Despite the knowledge and awareness existing about moisture problems, extensive damager still occurs today. Studies of moisture in the exterior wall constructions shows that the issue if often caused by rain and water intrusion. These kinds of problem result in major costs usually because the companies have to replace the material and structural components and also in some cases tear down large parts of the buildings.The work includes moisture theory and descriptions of four different exterior wall constructions, wood stud wall with plastered facade, exterior wall with wood facade, exterior wall with concrete, and exterior wall with brick facade. Our thesis work describes how the constructions are affected and moisture damage due to water intrusion.
Population and management models for the Swedish wild boar (Sus scrofa)
The wild boar Sus scrofa population in Sweden has increased rapidly in the last decades which has led to conflicts among stakeholders, for example due to crop damages in agriculture. Thus, there is an urgent need of quantified goals and effective strategies for wild boar management. To develop such strategies, knowledge on population dynamics is fundamental. In this study a deterministic matrix model was used to estimate population growth, based on previously published data. The exponential growth rate for a wild boar population was calculated to 1.48.
En studie av retentionen i floden Oder och dess avrinningsområden, Polen.
Nutrient enrichment is the main cause of the increasing eutrophication process in the Baltic Sea during last century. A prerequisite counteract this process the load of nutrients to the Sea must be investigated. The large contribution of nutrients to the Sea is caused by emission from the rivers within the drainage basin. For the total emission of nutrient into the Sea the retention process in the rivers has big influence. This process in the river system has been assumed as a not important part of the nutrient cycle.
Störningsindikation på lågspänningsnät
Föreliggande rapport är avsedd som ett examensarbete i elektroteknik (20p).Syftet med arbetet är att skapa en applikation för att finna störningar pålågspänningsnätet upp till 95kHz. Bakgrunden till arbetet kommer frånenergibolagen som vill kunna skicka datainformation direkt pålågspänningsnätet, detta vill de kunna göra med hastigheter mellan 2k ? 5kHz. Beroende på med vilken hastighet man vill skicka information kan störningar mellan givna frekvenser hindra datatransmissionen, därför är detviktigt att hitta vid vilka frekvenser störningarna uppstår så att lämpligaåtgärder kan vidtas.Grundläggande delar i applikationen är ett oscilloskop för mätning, dator medGPIB- kort för upptagning av data och LabView programvara för hantering avdata. För frekvensanalys kommer Fast Fourier Transform, FFT, att användas,varvid en grundläggande beskrivning kommer att medfölja..
Ung? Var god dröj! En diskursanalys kring ungdomsarbetslöshet och fördröjd etablering på arbetsmarknaden
Youth unemployement in Sweden is at an all-time high, a fifth of all university and college students live in poverty and the number of young on welfare is increasing. This study attempts to answer the question of how youth deprivation has been made possible as a consequence of political action, focusing on youth unemployment.
I critically examine the role of the Swedish government, the Swedish Labour Organisation (LO), and the various government departments through text analysis, in order to answer the question of how the current discourse on youth position in the labor market. Because youth unemployment is not an isolated phenomena the analysis covers several policy areas, such as education policy, labor market regulation and housing policy. I use discourse theories drawn from Laclau and Mouffe to expose how language is used as an instrument of political power.
I conclude that the current situation is a result of policy choices where the young have fallen behind due to lack of political organization. Their situation is not problematized to the required degree and is often explained on an individual level rather than on a structural level.
.
Produktionsanalys på Efterbehandling
Arvika Smide is a supplier to the automotive industry with a focus on advanced drop forgings including powertrain and bearings. The great experience and high quality is Arvika Smide?s speciality. Today's competition in the industries puts high demands on the efficiency where each company has a quest for perfection.Arvika Smide has been through the thesis of Karlstad University, called for a situation analysis of aftertreatment whose effectiveness has not been fully desirable. The department includes the production steps blasting, quality control and packaging.The thesis contains the results from the situation analysis and comparisons of the calculations for selected reference period Q4 2009th.
Jämförelse av metoder att mäta genetisk variation hos djurparksdjur
Integration policies have failed to make diversity into anything more than occupying the same physical space. People of different cultural background still do not share their lives to any real extent. Attempts made within planning and landscape architecture to catalyst the integration process have mainly been focused on structural measures, such as residential policies. As for outdoor environments, non-verbal casual encounters in the shape of crossing paths are assumed to lie at the heart of urban social integration.The aim of the thesis is to question this assumption and, as the thesis will show, there is literature supporting this aim. Looking at the works of Gordon Allport, Lewis Coser and some of their followers, I find intercultural contact to require more complex ways of interaction in order to reduce prejudice and to generate tolerance and understanding.