Sök:

Sökresultat:

1637 Uppsatser om Short stroke. - Sida 64 av 110

Parameterstudie av inneslutningsbildning och utvärdering av processföring för tillverkning av plastformsstål

This thesis has been performed at Uddeholms AB with the purpose to investigate theparameters affecting the formation of inclusions during the manufacturing of a low carbonmanganese-steel.A follow-up, steel and slag sampling and evaluations in microscope have been done for a totalof five heats.The results for each heat have been evaluated in relation to the theory from the literaturesurvey and suggestions for changes in the process to reduce the amount of inclusions whichhave a negative effect on the steel quality have been given.The project extends over a large process where many parameters affect the formation ofinclusions. However, a tendency that a higher addition of alloys seems to increase the totalamount of inclusions before and after the vacuum degassing is seen.The majority of the studied inclusions seem to approach the composition of the top slag aftervacuum degassing. Ladle glaze may cause the inclusions which had a different compositioncompared to that of the slag.A high or low ladleage together with a high argon flow during vacuum degassing seems todissolve particles from the refractory which later on get trapped inside the inclusions.The floatation for two heats has been studied where a short floatation seems to give a higheramount of inclusions in casted material.In machined material so called stringers were found. The main composition of those stringerswas pure alumina. Inclusions with a composition of pure alumina were not found in the liquidsteel, thus the pure alumina inclusions must be formed during the casting.

Livsstilsfärändring vid diabetes typ 2 : En litteraturstudie

BakgrundDiabetes typ 2 utgör ett betydande folkhälsoproblem både i Sverige och globalt. Sjukdomen kan leda till allvarliga komplikationer i mikro- och makrocirkulationen, som ger risk för bland annt hjärtinfarkt, stroke och skador på nerver och njurar. Riskfaktorer för att utveckla sjukdomen är bland annat övervikt, metabolt syndrom och arv. Behandlingen vid diabetes typ 2 utgörs i första hand av livsstilsförändringar, vilket innebär att ett stort ansvar läggs på den enskilda patienten. Egenvård är därför en viktig faktor i behandlingen.SyfteAtt utifrån ett omvårdnadsperspektiv belysa faktorer som kan underlätta för personer med diabetes typ 2 att följa råd för egenvård gällande livsstilsförändringarMetodStudien utformades som en allmän litteraturstudie.

Uppfyller BIM förväntningarna som arbetsmetod för broprojekt?

The purpose of this work is to design and construct a device able to measure the mechanical attrition of oxygen carrier particles. Those particles are used in chemical looping combustion and in the present situation there is a lack of knowledge in how the attrition process work and in which extension. To find already tested solutions trying to answering this problem a literature study wascarried out and the best solution found was the so called Grace-Davison Jet-Cup method. This method is supposed to emulate the attrition caused by a cyclone separator and its advantages are that it is possible to use small test amounts, 5-10 g, and a thirty minutes long test will be enough to acquire useable results. An device was designed based on the Jet-Cup method with some slight modifications.

Utvärdering av ett auditivt diskriminationstest på 3-åriga barn

A speech-based material that early can assess a child's hearing is needed to provide an indication of a hearing impaired child's language development. Being able to identify and discriminate between different sounds is a requirement for interpreting speech. Hearing assessments that examine speech perception can therefore, unlike, for example, pure tone audiometry, examine a hearing impaired child's perceptual language skills and provide a basis for intervention.The purpose of this work is to evaluate a new auditory material on 3-year-old children. The auditory material is based on the Ling-6-sounds and the main question was which of the sounds in the test were adequate for test of discrimination. Furthermore, it was investigated how the test works with children aged 3:0?3:11 years and how age and gender affect the result.Twenty-four children aged 3:0?3:11 years were tested using a computer based test.

Urininkontinens bland kvinnor : ett dolt hälsoproblem

Syftet med denna studie var att undersöka förekomst och svårighetsgrad av urininkontinens hos kvinnor och hur det påverkade deras dagliga liv. Syftet var vidare att studera om kvinnorna sökt hjälp för sin urininkontinens och om de var nöjda med den hjälp de erbjudits. Studien utgjordes av en tvärsnittsstudie med kvantitativ ansats. Populationen i studien omfattade alla de kvinnor över 18 år som under en dag besökte en framlottad vårdcentral i Dalarna. Totalt delades 416 enkäter ut, varav 397 besvarades och 368 inkluderades i studien.

SSD - Stair Support Device

Together with Hälsoteknikalliansen the project team recognized the need to improve availability in the staircase environments. This is a difficult environment, especially for our elderly. The staircase leading to and from apartments is such a major obstacle that many people do not dare to go into the staircase leading to their front door. The market study that the project team conducted showed that many were in need of a living support, often a relative, who helped and supported them when they went into these stairs. It also appeared that these people manage everyday life just fine, but they suffer the problems that stairs to and from their apartment causes.

Lönsamheten av analytikers riktpris - En studie av svenska bolag handlade på Stockholmsbörsen

We acknowledge the lack of empirical studies of the performance of analyst target prices in the Swedish stock market by examining the profitability of target prices for stocks publicly traded on the Stockholm Stock Exchange. We use consensus target prices issued between 2006-2010 and create two different strategies to observe the abnormal returns generated during this period. Going long in the top decile stocks with the best target prices and going short in the bottom decile stocks with the worst target prices generates a statistically significant abnormal buy-and-hold return of 8.9%. An active strategy with daily portfolio rebalancing and a timely response to target price changes generates a less significant monthly alpha of 1.4% against CAPM. The results show to be robust against the size effect discovered by Fama and French.

När livet tar en oväntad vändning. : Närståendes upplevelse av sin förändrade livssituation när stroke drabbar deras nära

De fo?rsta olympiska spelen i modern tid, a?r 1896 i Aten, drabbades ur ett tyskt perspektiv av politiska fra?gor som framfo?r allt representerades av konflikten mellan de tyska gymnasterna och olympiadens fo?respra?kare. Syftet med den fo?religgande uppsatsen a?r att belysa problematiken om ett tyskt deltagande i Aten 1896 mellan a?ren 1894 och 1896, en tidsperiod da? de olympiska spelen var pa? va?g att a?terupptas, genom att besvara fo?ljande fra?gor: Vilka fo?rutsa?ttningar ledde till att de olympiska spelen a?terupptogs 1896? Vilka anledningar la?g till grund fo?r att Tysklands deltagande i Aten tidvis var sva?rt att fo?resta?lla sig, och vilka anstra?ngningar kra?vdes fo?r att Tyskland slutligen skulle komma att delta? Underso?kningens fokus ligger, vid sidan av olympiadens grundare Pierre de Coubertin, pa? Willibald Gebhardt, chef de mission fo?r det tyska laget 1896. Ba?de Coubertins och Gebhardts inverkan i processerna fo?r att a?teruppta de olympiska spelen och att lo?sa ma?ngtaliga utrikes- och inrikespolitiska konflikter underso?ks med hja?lp av en sociokulturell teori av Pierre Bourdieu.

Ett lastbilsdäck är svart och runt, eller? : En kvalitativ studie om drivkrafterna bakom en optimal däckhantering på åkerier i Mellansverige.

Individual adaption to the student´s needs is a recurring main theme in the new Swedish curriculum (Lgr11). The purpose of this qualitative study is to examine how teachers work with individual adjustment for students with reading and writing difficulties. The study was based on five questions;In what way do teachers organize their teaching in the classroom individually for students with reading and writing difficulties?What methods do they use for student´s with reading and writing difficulties?What difficulties do they encounter in their teaching?How do the teachers reason to curriculum goals regarding individual adaptions?How do they think about their own knowledge regarding reading- and writing difficulties and dyslexia?The method for my study was qualitative interviews. Five teachers were interviewed in semi-structured interviews.

Globalt Ansvar : socialt ansvar eller organisatoriskt hyckleri?

Background: Ambiguity and confusion of ideas within the area of social responsibility have led to that companies not really know how to work with these types of questions. One way for companies to deal with their social responsibility is to affiliate to an initiative that exists and through this show their standpoint. One of these is Globalt Ansvar, a Swedish governmental initiative that is based on Global Compact?s principles and the guidelines of OECD. What does it mean for the companies when showing their point of view? Is this a way to gain legitimacy?Purpose: The purpose with the thesis is to judge if organisations? work with Corporate Social Responsibility gains more legitimacy by affiliating to Globalt Ansvar.Research method: A survey made through telephone interviews with representatives from all of the fifteen Swedish companies which today are affiliated to Globalt Ansvar.Conclusions: In order to give the affiliated companies more legitimacy, Globalt Ansvar has to be a legitimate initiative.

ABF som folkfostrare: 1920-1949

-1949 [26][upps-01.gif] The aim of this master thesis is to investigate how W.E.A. Workers Educational Association, took part in the great changes of society and in the modernizing process in the period of 1920-1949. The examination is based upon three journals of educational material that were connected with W.E.A. The question at issue is to show how the people behind W.E.A. aimed to educate and indeed educated the workers to modern people and moreso to see how the articles in fact were written and to analyse in what way they turn to the workers and get their attention.

Bland Bokbaciller och Vingklippta Änglar ? En kvalitativ studie kring bestånd och beståndsarbete på fem sjukhusbiblioteks barn- och ungdomsavdelningar

The main purpose of this thesis was to examine the collection management at five different hospital libraries´ children and youth?s section to discern different roles of the collections. We made qualitative interviews with five hospital librarians. The purpose was also to see how the collection development affected the different roles of the collections. We used two theories.

En bibliotekshermeneutik : Om skrivandets förutsättningar i Martina Lowdens Allt

This paper analyzes Allt, Martina Lowden's novel from 2006, from a media discursive perspective. The theoretical framework consists of Michel Foucault's discourse analysis, Friedrich Kittler's research on hermeneutic reading, and N. Katherine Hayles's studies of pattern?randomness controlled meaning production. Various examples on how communication technology influences the narrator?s act of writing illustrate the medial discourse surrounding the body of Allt.

Together Together

Mobiltelefonen är ständigt närvarande i vår vardag. Den är ett kraftfullt verktyg som hjälper oss med allt från att surfa på nätet till att kolla när bussen går eller att betala räkningarna. Den har också gjort att vi kan dela med oss av våra liv och hålla kontakten med våra nära och kära var vi än befinner oss. Kort sagt har den ändrat hur vi beter oss i de flesta situationer. Men alla dessa ändringar är kanske inte lika positiva.

Levande material. En utforskande exposé över vårt förhållande till kroppen som organisk materia

In this project the author made an attempt to, in a short film, visualizean experience of the organic materials that our bodies consist ofand what becomes of it when we die. The intention was to dissect thismatter, break it down to see it in a simpler form and to explore ourrelationship to it, being part of a constant exchange between organicmaterials and having so much power over the environment and otherliving animals. At the very start, the idea was to deal with the relationshipdifferent people have with their bodies. Later in the process, a decisionwas made that the product would be communicating the author?sown experiences of the body materials after studying it and trying torecreate fragments and feelings of them.

<- Föregående sida 64 Nästa sida ->