Sökresultat:
2450 Uppsatser om Local Parameter Estimation - Sida 48 av 164
Konsekvenser av förändrade partistorlekar - en undersökning på Volvo Car Body Components
Volvo Cars Body Components i Olofström tillverkar karosskomponenter till Volvos personbilar. De senaste åren har produktionsvolymen ökat betydligt, samtidigt som hårda krav på rationaliseringar ställs inom koncernen. En parameter som skulle kunna minska kostnaderna och effektivisera produktionsflödet, är partistorlekarna i pressning. Idag är partistorlekarna anpassade efter några dagars kundbehov och man är oense om partistorlekarna tar hänsyn till om artikeln har ett högt styckvärde eller kräver små lagerutrymmen. I vår uppsats har vi använt oss av metodtriangulering, vilket innebär att vi har kombinerat ett kvalitativt och ett kvantitativt synsätt för att komma till vår slutsats.
Observatörer för skattning av verktygspositionen hos en industrirobot : Design, simulering och experimentell verifiering
This thesis approaches the problem of estimating the arm angles of an industrial robot with flexibilities in joints and links. Due to cost-cutting efforts in the industrial robots industry, weaker components and more cost-effective structures have been introduced which in turn has led to problems with flexibilities, nonlinearities and friction. In order to handle these challenging dynamic problems and achieve high accuracy this study introduces state observers to estimate the tool position.The observers use measurements of the motor angles and an accelerometer and the different evaluated observers are based on an Extended Kalman Filter and a deterministic variant. They have been evaluated in experiments on an industrial robot with two degrees of freedom. The experimental verification shows that the state estimates can be highly accurate for medium frequency motions, ranging from 3-30Hz.
Ämnestransport med grundvatten i hydrogeologiska typmiljöer
Certain types of waste, e.g. bottom ash originating from municipal solid waste incineration (MSWI bottom ash) can be used as road construction materials. A potential problem is the possibility of substances leaching out of the road and spreading in the surrounding groundwater.The aim of this master?s thesis is to conclude whether hydrogeological type settings can be employed to, based on local conditions, provide an estimate of the probable spreading of these substances in the surrounding groundwater, and whether certain types of soils can be identified as being less suitable for the localization of a MSWI bottom ash road. A hydrogeological type setting is defined as a mappable unit with similar hydrogeological properties.
Finansiell riskbedömning av en byggrättsportfölj
Bakgrund: När ledningen för ett bygg- och fastighetsföretag tar beslut om ett nytt projekt ska genomföras måste företaget ta hänsyn till en mängd olika aspekter. Företaget måste ta ett investeringsbeslut som innefattar överväganden om hur risk och förväntad avkastning i ett projekt ska bedömas. Bostadsinvesteringar är förenade med en mängd osäkerheter och svårbedömda risker i framtiden. Problemformulering: Företag som investerar ?och har en betydande del av sin verksamhet uppbunden? i olika projekt, bör se riskhantering som en möjlighet att allokera och därigenom minimera sina risker, däribland sina finansiella risker.
Konstruktion av formkropp pa JAS 39 E/F Gripen
The aim of this work is to develop new conceptual designs for the fairings that are situated between the fin and the rear fuselage on the new version of the JAS 39 Gripen aircraft, called the Gripen E/F. The designs presented should show a profit in the form of lower weight. To achieve weight loss, the possibilities of using other construction materials other than those which are available at Saab today were studied. Therefore, a material survey was carried out in which the market for modern construction materials was studied to get an idea of today?s level of technology.
Husbåtar - framtidens boende med flyt
Examensarbete om moderna husbåtar med Sverige som utgångspunkt. .
Åldrande i ett mångkulturellt samhälle : En kvalitativ studie av äldre invandrares tillgång till samhällsinformation och deras deltagande i aktiviteter riktade till äldre medborgare.
In light of the European Union`s 2012 theme year: Active aging and solidarity between generations I wished to gain an understanding of weather elderly immigrant are provided with equal possibilities and access to local community information as the majority population and their participation in activities arranged for senior citizens in the municipality where they live. I have done this by meeting with those who work in this capacity. I also chose to meet with representatives for immigrant organizations in the local community to enquire of their work with senior citizens within their own ethnic group. This is a qualitative study on a phenomenological ground based on nine interviews and four observations. I have had two theories to help me analyze my empirical material.
Uttalad profil och dolda krav : Folkhögskolors huvudmän och deras påverkan på musiklinjer
Syftet med denna studie är att undersöka om, och i så fall hur folkhögskolans huvudmanpåverkar skolans musiklinjer. Centralt i studien är huvudmännens ideologiska grundsyn elleravsaknaden av den samme. Alla folkhögskolor står under en huvudman och det är en viktigparameter för folkhögskolornas existens. Huruvida huvudmännens ideologiska grundsynkommer till uttryck och påverkar folkhögskolor har debatterats hårt i folkhögskolans historia.Däremot är forskningen kring ämnet mycket begränsad vilket har gjort arbetet med studienextra spännande. För att undersöka hur det ser ut i dag har vi besökt fyra svenskafolkhögskolor med olika huvudmän.
Furunäset och mentalsjukvården : en studie i en institutions kontroll över patienters livsvillkor
The Swedish mental hospitals existed for about one hundred years, the period around 1880-1980. The research is intended to be from a local setting perspective to study the local approach used to meet requirements from Furunäsets mental hospital principals 1960 - 1972, the effect this had on the care and treatment of mentally ill patients and how Swedish society's changing approach to mental health influenced the process. The results of the research showed that Furunäset searched for ways to meet the principals' requirements which often went against the patients? personal best. Furunäsets mental hospital strove to fulfill its institutional goals in them selves rather than giving patients the care and treatment they needed.
Mellan Askim och Angered En kvantitativ undersökning av mediers framställning av individer i socio-ekonomiskt olika boendeområden.
Authors: Fanny Edstam & Joacim KettilTitle: Between Askim and Angered. A quantitative research of media's presentation of individuals in different socio-economic residential areas.Level: Bachelor of JournalismLocation: University of GothenburgLanguage: SwedishNumber of pages: 41Gothenburg is a city that struggles with the issues of segregation. Residential areas like Askim are poorly integrated and areas like Angered have a high amount of immigrated inhabitants. Our hypothesis, with this in mind, is that one can assume media reports from different socio economic residential areas in different ways. The assumed difference in reporting can have aneffect in the readers beliefs that an area can be better or worse than it actually is.
Varför gör de inte vad de ska? Hur det kommer sig att ett infört arbetssätt på Försäkringskassan inte tillämpas så som avsetts
The aim of the present paper was to see why a recommended course of action is not always followed in the way it is supposed to. The paper deals with a new method (SFA-metoden) used by The Social Insurance Agency in working with sick-listed people. Aspects that are elaborated on are local effects of the method at its introduction, case managers work conditions, and control of the implementation of the method. Two different methods of investigation have been employed. On the one hand, previous reports on the method have been analysed, and, on the other hand, two focus groups interviews, one consisting of case managers´ working with the method, and one constituted by their supervisors have been carried out.The results have been analysed in accordance with, on the one hand, the theory of street level bureaucrats and, on the other hand, certain concepts applied in the new institutionalism.
Small scale pig production in Takeo province ina rural area of Cambodia
Cambodia, in Southeast Asia, has tropical monsoonal climate with distinct dry and rain seasons. Many people are poor and live in rural areas. Farmers mainly culture rice, and raise pigs, cattle and poultry as well. During two months, a minor field study was performed in Cambodia. The main purpose was to evaluate the impact of contributions done by projects that started in 2005 and were managed by the local organization CelAgrid.
Validering av vattenkraftmodeller i ARISTO
This master thesis was made to validate hydropower models of a turbine governor,Kaplan turbine and a Francis turbine in the power system simulator ARISTO atSvenska Kraftnät. The validation was made in three steps. The first step was to makesure the models was implement correctly in the simulator. The second was tocompare the simulation results from the Kaplan turbine model to data from a realhydropower plant. The comparison was made to see how the models could generatesimulation result that was similar to the reference power station.
Företag på Facebook : Hur de sprider information och interagerar med sina medlemmar
Social media on the Web has become more common over the last decade and in recent years it has grown immensely. The social media with the highest amount of members is Facebook, where not only private persons are found - companies started to establish their profiles on the network in 2006. However, little is known about how these companies succeed and reach their audience with information dissemination and interact with them. The aim of this study is to contribute with information to local companies on how they can manage to maintain their activity with different approaches and strategies. This study examines how three different local companies chooses to spread information and maintain relationships with their members on Facebook.
Energieffektiva bostäder i Kurdistan - Förslag på bostadshus i den kurdiska delen av Irak
Staden Sulaymaniyah ligger i den kurdiska delen av Irak och har på senare år utvecklats då många valt att flytta från landsbygden till den centrala delen av staden. Nybyggandet sker under tidspress och långsiktigt hållbara lösningar prioriteras inte. Målet är att ta fram ett hus som är anpassat för majoriteten av befolkningen och samtidigt få ett bra och energieffektivt inomhusklimat. En faktainsamling genomfördes för att ge bakgrundsinformation till projektet. Vidare gjordes en planlösning till huset i AutoCAD vilken har använts som grund till utformningen av huset och smarta lösningar.