As break downs of production transformers are costly and often result in long outages it is essential for reliability of operation that the transformers are manufactured to be robust. The aim of this M.Sc. thesis is to investigate if deviations should be made from the standard IEC 60076 ? Power Transformers in order to describe a robust large power transformer for procurement.The investigation has been conducted in three stages. In the first stage a definition of the term robust was developed in consultation with the client Vattenfall Vattenkraft.

Användbarheten av IT-system förbättras ständigt och företag har fokus på att förbättra sina IT-system som företagets kunderna använder då det leder till fler och nöjdare kunder. Annorlunda ser det ut för interna IT-system, alltså datasystem som används av medarbetare och som ska förenkla arbetsuppgifter, effektivisera arbetet eller även möjliggöra att utöva arbetsuppgifter vid en arbetsmiljö på distans. Användbarheten av interna IT-system står inte lika mycket i fokus som användbarheten av kundcentrerade system och istället för att åtgärda brister i användbarheten tvingas medarbetarna att lära sig hantera IT-systemets brister.Utgångspunkten för arbetet var funderingarna över vilken betydelse användbarheten har för ett företag när det gäller interna IT-system vid en arbetsmiljö på distans. Ansatsen var att undersöka om användbarhetsproblem i praktiken leder till att användarna upplever ett IT-system som dåligt i den särskilda situationen av ett arbetsmiljö på distans. I en fallstudie utvärderades ett IT-system som används av försäkringsombud som arbetar på distans med hjälp av en enkätundersökning och användarintervjuar samt hierarkiska uppgiftsanalyser.

I denna rapport har vi undersökt hur utvecklarna tagit hänsyn till användbarheten för slutanvändarna vid utvecklingen av ett säkerhetskritiskt system. Resultatet erhölls genom en empirisk fallstudie på två företag som utvecklar säkerhetskritiska system. Datainsamlingen bestod av intervjuer med personer som varit delaktiga i och har kunskap om utvecklingen av systemen som ingick i vår fallstudie. Sedan analyserades insamlad data mot teori inom Människa ? Dator ? Interaktion (MDI) samt teori om säkerhetskritiska system.

This thesis examines how knowledge management professionals use trust as a component in the creation of knowledge management systems, and what methods they use for building trust.Adopting a grounded theory approach, interviews with 8 knowledge management professionals active in different industries served as the base for an analysis that identified trust to be the single most important common factor in the data. The concept of trust used by the informants was identified as relating to the knowledge management system itself, rather than other users, employees or groups in an organisation.Building trust, the KM-professionals mainly focused on three methods: simple solutions, system superiority, and implementation security. Using these methods, the KM-professionals seek to ensure system trust by creating opportunities for users to obtain positive experiences of using the system, and thereby generate a foundation for a trust-based relationship between the user and the system..

This thesis consists of four case studies. The objective is to find out how to get a well functioning cow traffic in an automatic milking system. Different technical and building solutions are analysed and some adjustments are proposed for the DeLaval herd management software. Case study 1: Lactation chart comparison from traditional cow traffic and Feed First? cow traffic Case study 2: Farm A - a study of the precedence passage and the cow traffic Case study 3: Farm B ? an overview of the farm and their way of working Case study 4: Key factors ? how can we judge how well a VMS farm is working? Case study 1: Lactation chart comparison from traditional cow traffic and Feed First? cow traffic In this survey data is analysed from before and after rebuilding to Feed First? cow traffic. Lactation graphs are compared between traditional cow traffic and Feed First? cow traffic.

The idea of this study was to critically examine and account for the result found in scientific articles from databases. The aim of this literature review was to investi-gate how nurses can encounter a bereaved person in a crisis situation. Also the encounter of a person at risk of losing someone. Additionally, we investigated if the nursing staff fulfilled these needs. This literature review foremost addresses registered nurses.

Media has in the last year been dominated by news about the current financial crisis around the world. For the banking system in Sweden the crisis began to show in the beginning of 2008 and there where a lot of speculations about how serious the crisis would be and it?s consequences. In several aspects, the banks' situation in the current crisis, are linked to the banking crisis in the 1990s. Although these crises have had different break-out reasons, there are several parallels between these crises to be drawn.

Denna rapport tar upp problem med revisionskontroll i realtidsbaserade kollaborativa system. Enligt Fan & Sun (2012a); Fan & Sun (2012b) behöver man bryta kraven som definerar realtidsbaserade system för att uppnå detta.Den stubbaserade lösningen som beskrivs i rapporten lyckas minska antalet fel i testfallen som utförts i fallstudierna. Genom att implementera personliga editeringsflikar och stubbar är det möjligt att ha revisisionskontroll i ett realtidsbaserat system. Dock för att detta ska vara effektivt och användbart bör detta endast användas i specifika fall och med noggrann granskning.Fallstudien som genomförts visar inte på några imponerande siffror men en förbättring är fortfarande möjlig vid specifika fall..

This essay focuses on the term usability while conducting a user centred system design. Usabilitymeans to what extent a user can use a product to achieve effectiveness, efficiency and satisfaction.Development using a user centered system design means that knowledge about the end-users andit?s opinions becomes a crucial part of the development process. The question of this essay is if usinguser centred system design will lead to good usability.We used methods from a user centered system design point of view while developing an applicationfor a Swedish bookstore company called Bokia AB. This included user and task analysis following by aclose relationship between the developers and end-users by using sketches and showing themprototypes of the system while collecting feedback.After concluding our case study we determined that using methods from user centered systemdesign could be used as a great tool to further improve the usability and to improve an applicationssuccess chances..

This essay aims to investigate how students raised in Jehovah's Witnesses have experienced their career counseling during their middle and high school education. My main objectives are, based on the testimonies of former Jehovah's Witnesses, to investigate how career counselors can find a strategy to approach these students in a non-threatening way. I also try to take into account the contextual elements which are of great importance when counseling students raised as Jehovah's Witnesses. A qualitative study has been carried out with five informants with a background in the movement. The material has then been analyzed using a qualitative, narrative method.

Prostate cancer is the most common cancer in men. One type of treatment is internal radiation therapy, brachytherapy. This treatment requires the patient to lie completely motionless and in lithotomy position. The purpose of this study was to investigate the prevalence of pressure ulcers associated with brachytherapy in prostate cancer at the UniversityHospitalin Uppsala. Furthermore, the purpose was to identify the most common location of pressure ulcer and to examine whether there were any connection between risk factors and possible pressure ulcers.

This master?s thesis presents experiences from an evaluation of AdApt, a multi- modal, conversational dialogue system, using PARADISE, PARAdigm for Dialogue System Evaluation, a general framework for evaluation. The purpose of this master?s thesis was to assess PARADISE as an evaluation tool for such a system. An experimental study with 26 subjects was performed.

Syftet med detta examensarbete var att jämföra olika system för att lagra spannmål på.Spannmål som skall blandas in i fodret till de värphöns som finns på gården där det system som jag finner är bäst skall sättas upp. Jämförelsen gäller dels helt olika system, silo tork kontra lufttät lagring och olika systeminom lufttät lagring. Jämförelsen har varit en mestadels ekonomisk jämförelse men jag har även gjort en liten teknisk jämförelse. För att få fram fakta som jag kunde basera min fallstudie på så jämförde jag fyra olika system mot varandra.Det som jämfördes var els två system med lufttät lagring, ett system med silo torkning och ett system med inköpt färdigtorkad spannmål. Jag gjorde olika investeringskalkyleroch fick fram den totala årskostnaden för varje system och dels kostnaden per kilo spannmål för varje system samt också vad foderkostnaderna blir.

Over the past decade, the fashion industry has experienced a relatively high rate of consumption with material and clothing becoming increasingly subject to waste and disposal. As a result of the increased awareness within the industry the interest in CSR (Corporate Social Responsibility) amongst retailers has increased substantially in an attempt to shy away from the critically amplified media attention. In addition the underlying demand from external stakeholders has forced companies to ensure they focus and act upon each stage of the product life cycle.This study provides a further in depth analysis of the fashion industry and conveys the key messages and steps that firms are taking in response to the external pressures and requirements based on four different merged process areas. This research paper examines the impact of CSR on two Swedish fashion retailers Åhléns and JC and shows how accountability relates to the external expectations and norms that prevail in society. The result shows that the firms do meet the demands within each sub category as a response to market demands.

In the construction industry today there is a significant technological revolution goingon. New methods for automated processes and information management are developedcontinuously. Intense studies are currently taking place to ensure ways and means toembrace the new technology of BIM.At the present, environmental certification systems are considered cumbersome andchallenging. However, the increasing demands of sustainable development in the constructionindustry imply that the environmental certifications will not disappear. ThisMaster Thesis examines the possibilities to apply BIM technology within the field ofenvironmental certifications to streamline the processes.The applications that provide the best opportunities are:- To use BIM to be able to, during the design stage, dynamically evaluate the resultor score a certain building will achieve.- To avoid unnecessary work through collection of data for calculations directlyfrom a BIM-model.- To be able to automate certain time consuming calculations that are currentlyperformed manually.- To automatically examine the completed model to ensure that the demands arefulfilled.The possibilities to use BIM within these areas are however limited by the technologyitself.