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352 Uppsatser om Formation of cracks - Sida 8 av 24

?Vi läkare är inte utbytbara!?: - en studie om identitetsskapande vid fusioner i sjukvården

During the last 20 years, the Swedish health care system has faced major changes. One of them is the increasing pressure to generate economic profit due to private businesses entering the market. Health care units are forced to make some structural changes in order to become effective and efficient. As a result merger and acquisitions has become a part of the health care sector, and seems to be an increasing phenomenon. Mergers and acquisitions have mainly been studied in the industry.

Hantering av skadade styrstavar

The thesis was performed at Forsmarks Kraftgrupp AB in the department ofmechanical engineering, FTCM. Forsmark nuclear power plant has had problems with cracks in some of the controlrods which are placed in the reactor at Forsmark 3. To investigate the cause of this,material samples were taken from five of the damaged control rods. This sampling ofthe rods resulted too short rods to be transported in the shipping container to theinterim storage facility for used nuclear fuel in Oskarshamn. Control rods are crucial components in a nuclear reactor, regulating the reactoreffect by blocking or unblocking fuel rods. Control rods which have been in thereactor are always handled under water in order to protect against the radiation theyemit. The task was to design a control rod adapter that extends the control rod sotransport can be performed from Forsmark. The goal of the work was a complete setof blueprints so the control rod adapter can be manufactured and mounted on theshort control rods and then be transported to the interim storage facility. The work began with mapping of how control rods normally being handled from thereactor to the interim storage facility.

Methane production from dairy cows : relations between enteric production and production from faeces and urine

Methane (CH4) is a greenhouse gas (GHG) that contributes to the global warming. One of the largest sources of methane is livestock, preferably ruminants which alone counted for 30% of the total agricultural anthropogenic methane emissions in the year of 2000. The reason to why ruminants are such large contributors of methane are that the gas is produced in the rumen by enteric formation and leaves the animals by belching, exhaling or by the excreta.Diets high in concentrates can result in a lower emission of methane. Also diets with a high content of starch, such as alfalfa-grass, have a methane-decreasing. It is profitable to reduce enteric methane formation since that form of methane is unavoidably lost.

Att bli någon : Unga kvinnors identitetsskapande via Bloggar

The aim of the study was to through a qualitative method with two focus groups investigate how young women percieve that their identity creation is influenced by them reading celebrities Blogs and in that case, whether this type of Internet activity affect their autobiographical memory, the foundation for personal identity. Since the main task of the autobiographical memory is to give the ego and its social mode a foundation by sharing memories with others, the Internet activity should be seen as an important factor for the identity formation of young people. Today, the young spend equally mauch time being connected to various media as they do socializing with family and friends. The results indicate that young women view the world and lifestyle that known Bloggers expose intheir Blogs as a kind of ideal. The young women got an aha reaction when they realized that what the Bloggers expose is not always equal to the real life..

Korrektion och imitation som mätverktyg för diagnos av PT-nivå : Kan man korrigera eller imitera en grammatisk struktur som man inte kan producera i fri skriftlig produktion?

The purpose of this study was to examine whether a L2 learner could correct or imitate structures of the language that they could not produce in written production defined by processability theori levels.The Informants had Arabic as their mother tongue. The study showed that the ability of correction developed slower than the capacity for imitation and the ability to written production. The ability of the correction developed by the duration of the stay. The result was a confirmation of theory formation in processability theory. Corrective elicitering could be developed into a useful diagnostic tool in the classroom and thus provide an education that followed a natural learning order according to processability theory by Pienemann.Keywords: processability theori, imitation, correction, written production.

Förbränning av träpellets och pelleterad halm i en 40 kW rosterreaktor

The project focus on combustion of softwood pellets and pellets in a 40 kW grate fire reactor at TEC-Lab. Dept Applied Physics and Electronics at Umeå University. Experiments were performed at four primary airs to fuel ratios (0.7 to 1.3), where aspects such as temperature profile, levels of gases (CO and NO), sintering-/-slagging and unburned fraction of the ashes were studied. Four different fuel loads were used for wood pellets (10, 20 and 30 kW) and one fuel load for straw (10 kW). Combustion of straw proved very difficult to ignite, and also led to other combustion-related technical problem such as slag formation due to the relatively low melting temperature-/-slag temperature of the straw.

Mikroskopering av opaka faser - en studie från Skyttgruvan, Falun.

In nature there are about 4,500 minerals identified. These can roughly be divided into two groups, opaque phases and non-opaque phases, with the exception that some opaque phases also may act as a non-opaque phase in different circumstances. The division is made on the basis of the optical properties. Opaque phases are nontransparent, which means that a different type of microscope must be used. A conventional microscope uses transmitted light while the microscope for opaque phases or the ore microscope uses reflected light.

Överreaktion på aktiemarknaden - Myt eller verklighet?

PurposeThe purpose of this paper is to assess whether the overreaction found in ?Does the Stock Market Overreact?? by DeBondt and Thaler still persists today, and by equivalence test if a trading strategy based upon these assumptions would generate abnormal returns. MethodThe research has been carried out by studies of the stocks that for a prior period of one year has over or underperformed their benchmark. The stocks used in my study are all part of S&P500 index, and the period of study runs from three to five overlapping years over the last twenty years. ResultsMy tests indicate that the type of overreaction proposed by DeBondt & Thaler still is present, at least considering the stocks that during the formation period were winners..

Spelar språkresan roll? : Fyra individers upplevelser av språkresans betydelse för deras karriärval

The objective of the study is to examine whether the experience from language courses abroad has had any impact on the career choices for four individuals. Based on a qualitative research methodology, four semi-structured interviews have been executed. The two research questions have been answered by letting four people recount their experiences from language courses abroad linked to their self-images and career choices. The outcome is that the experiences from the language courses contributed to a more or less altered self-image. Most of all, the interpersonal abilities were fostered, which led to the formation of a self-image characterized by improved confidence in social settings.

Naturvetenskap och Bilderböcker : Naturvetenskaplig Begreppsbildning och Grundläggande Naturvetenskapliga Matoder

Preschool has a long tradition of using picture books, both as entertainment and as a resource for educational activities. In science there are two main application areas. The first one is science concepts and the second is to teach basic science process skills. These skills, observing, communicating, inferring, classifying, measuring and predicting reflects the methods used by scientists. Picture books potential to put science concepts and activities that promote the use of science process skills in a meaningful context, recommends using picture books for this purpose.

Bloggen - socialt medium med makt potential : En kvalitativ studie om konsumtionsideal bland svenska och internationella bloggar

Today, we live in a consumption society. We buy products to soothe our needs and desires. Thru material things we can express our own personal identity and shopping is seen more as a pleasure than a need to survive. With the background media- and communication studies, the reason of this study was to explore how blogs as a social medium can influence the consumption ideal in society. With dialogical analysis and semiotic analysis we wanted to see if we could find a specific consumption culture in the content of six blogs we did our studies on. We found that the blogs showed us that there is normal to have everyday luxury and spoil oneself with expensive things.

Hållning av kastrerade och icke kastrerade försöksmöss i par som en lösning på aggressivt beteende

Aggression between laboratory mice is a common problem and can result in welfare issues such as mice hurting or killing each other and also stress. Swedish laws and regulations clearly states that mice must be housed with a companion due to their natural social structure. Many studies have investigated the effect off enrichment, group size, cage size and other potential changes in in their environment on the occurrence of aggression. Even with these changes aggression can exist and therefore a new solution was tested in this paper. The proposed solution was to house an intact mouse with a castrated one and thus fulfill laws and regulations while still maintaining the physiology of one of the mice for the purpose of medical experiments.

Kvinnors behov av information i samband med Hysterektomi

Syftet med föreliggande systematiska litteraturstudie var att beskriva kvinnors behov av in-formation i samband med hysterektomi. Via Högskolan Dalarnas databas Elin och Blackwell Synergy söktes vetenskapliga fulltextartiklar som behandlade kvinnors informationsbehov vid livmoderoperation. Av 41 artiklar valdes 15 ut varav 8 kvantitativa och 7 kvalitativa. Dessa kvalitetsprövades med 28 kriterier från modifierade granskningsmallar efter Forsberg och Wengström (2003) samt Willman, Stoltz och Bahtsevani (2006). Av artikelurvalet framkom att kvinnorna saknade information om hysterektomi i allmänhet och i synnerhet om behand-lingsalternativ samt kvinnans gynekologiska hälsa och dessutom om post-operativ sexualitet.

Bilden av mannen i svensk kriminallitteratur

The aim of this Master?s thesis is to examine the image of the man in Swedish crime fiction. Gender theory based uponRobert W. Connell theoretical framework which discusses masculinities in plural is used. The method used is idea analysis and my supply for analyse is constructed on thebasis of Connell?s four ideal types regarding masculinity.The material in the investigation comprises of five novels published in Sweden 2007.The investigation reveals the complexity in forming masculinities; traditional male values remain mostly intact, but at the same time men must deal with emotions andrelations with women in a world where the male norm often is questioned.

Analys av sprickdetektion vid automatisk avsyning av granvirke : med avseende på sprickors bredd, längd och djup

Examensarbetet syftar till att hitta samband mellan ytliga sprickor hos virke, i form av dimensioner och karaktärer, som dagens maskinella avsyningssystem inte klarar av. Tyngdpunkten i projektet har legat på att identifiera eventuella samband mellan verkligt djup hos sprickor och de ytliga sprickmått som kan uppmätas med automatisk avsyning av WoodEye. I huvudsak har projektets praktiska undersökningar gått ut på att bestämma sprickors ytliga dimensioner, djup, typ och position med hjälp av automatisk avsyningsutrustning (WoodEye) samt genom manuell uppmätning i ett antal itusågade sprickzoner. Det provmaterial som använts i utförda försök och som legat till grund för efterföljande sprickanalyser har varit av sådan karaktär att det kunnat jämställas med konstruktionsvirke som normalt sett hållfasthetssorteras enligt europasstandard SS-EN 14081-1.I projektet har 568 sprickor, fördelade över 8 olika spricktyper, analyserats. Av erhållna resultat har det konstaterats att störst respektive minst medelbredd uppvisades hos kådlåpor respektive kantsprickor, störst respektive minst medellängd uppvisades hos splintsidesprickor respektive kådlåpor, samt att störst medeldjup uppvisades hos fäll-, kap- och stormsprickor.

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