This master thesis comprises analysis and dimensioning of a keyed joint between a generator axis and a hub with aid from the FEM-software ANSYS Workbench 13.0.The generator axis is a part of a hydroelectric power station that generates electricity with a reactions turbine, a Kaplan turbine. The existing keyway consists of one parallel key with the width 90 mm and height 45 mm. Due to a planned increase of the power of the generated power with 32 % a design study was needed to see if the keyed joint would be suitable for the extra force. Because of the fact that the axis diameter is bigger than the standards covers/recommends a the keyway had to be re-dimensioned. In an earlier assignment from Skellefteå Kraft AB to Sweco Energuide the keyway was planned to be properly dimensioned, but no final solution was approved.During this master thesis a number of different numerical tests were made.

Problem discussion: That empowerment and autonomy can lead to desirable effects on employees is clear. Previous research has found correlations between empowerment and e.g. motivation, job satisfaction, productivity, loyalty and commitment. However, a control problem arises when employees have more freedom in decision-making which could potentially lead to undesirable outcomes. It thus becomes a type of dilemma for management and managers where you have to try to balance a restrictive use of the control system (to maintain control) and an enabling use (to promote empowerment).Purpose: The purpose of this study is therefore to identify how a company can use its control system in order to achieve empowerment while maintaining acceptable levels of control.

Inom systemutveckling anva?nds ett flertal olika arbetsmetoder. Da?ribland agila metoder som t.ex. XP, SCRUM, Kanban och plandrivna t.ex.

Den globala fordonsindustrin möter en av de största nedgångarna i modern tid. Fordonsindustrin är en av de absolut största branscherna med en lång kedja av företag och människor som är direkt och indirekt involverade i utvecklingen och tillverkningen av nya fordon. Att vara en underleverantör i fordonsindustrin är en mycket tuff uppgift även när tiderna är goda. Men hur påverkar rådande marknadssituation en underleverantör? Syftet med studien är att ur ett institutionellt perspektiv, undersöka hur ekonomistyrningens regler och rutiner påverkas av en radikal förändring i omgivningen, hos en underleverantör i fordonsindustrin och hur detta samspelar med företagets strategi.

När människor drabbas av en traumatisk kris som raserar deras vardag tvingas de till att försökabygga upp sin tillvaro igen. Vissa gör detta genom att blogga om sina tankar och känslorrörande krisen. Vad kommer det sig att så många väljer att visa upp sitt lidande i ett offentligtforum? Med hjälp av grundad teori undersöker vi de mest centrala aspekterna av och omkringkrisbloggande för att skapa en större förståelse för detta nutida fenomen. Genom intervjueroch studier av bloggar framkommer det att personer som bloggar får möjlighet att på egnavillkor göra sin röst hörd, sprida sin berättelse och reflektera över sin egen resa.

When migration to a country increases, the integration of the migrants becomes extra important for the host country?s society, economy and culture. In the last decade, Europe has faced several crises, such as the refugee crisis and the covid-19 pandemic, which has affected both migration and integration policy. The challenges that have characterized European society in recent years makes it interesting to study how the measures highlighted by the European Commission to integrate migrants has developed. Therefore, the paper aims to compare the Commission?s action plans for integration published in 2016 and 2020 based on the threat theory and the contact theory to see how both perspectives can contribute to understanding the differences between the years and which theory is best suited to understand the Commission?s current visions of integration.

The Mobile phone has contributed to massive changes in the way that human beings communicate with each other and is a technology that is a part of society?s globalization. Opinions differ in the area of user interface where some feel that mobile phones exclude users such as senior citizens or users with an intellectual or a physical disability.Universal Design ??design for all?, is a vision that intends to bring about settings, products and services that suits as many people as possible irrespective of an individual?s needs and prospects. The criteria for ?design for all? are among other things flexibility, user friendliness, comprehensibility and a high tolerance for mistakes.The purpose of this essay is to investigate the mobile phones graphic user-interface from the theory of a universal design.

Syfte: Att undersöka vad som utmärker ledarskap i ekonomiska kriser, till följd av den idag aktuella finanskrisen.Genomförande: Empirin har insamlats med hjälp av den kvalitativa metoden. Studien innefattar djupintervjuer med semistrukturerade frågor och tio respondenter från två olika företag inom banksektorn. Utifrån empirin har författarna försökt att dra paralleller mellan ledarnas beteenden och de teorier som omfattar olika ledarstilar.Slutsatser: Utifrån analysen av empirin framgick det att ledarbeteenden i ekonomiska kriser skiljer sig. Dock kan orsaken till det vara företagens olika förutsättningar och struktur innan den ekonomiska krisen. Beteenden som tydlighet, tillgänglighet, delaktighet, samhörighet och minskat handlingsutrymme blev mer utmärkande.

The town square is an important public space and is often described as the city´s living room. By creating a lively city center a sense of security is developed among the citizens which makes them wanting to use the town square regardless the time of the day. One important meeting point in Gävle is the centrally located Stortorget, sited between Drottninggatan and Nygatan. The town square went through an extensive renovation followed by both positive and negative reactions among the City´s inhabitants.  The aim with the study was to investigate the main walking paths and meeting points as a planning support to Gävle Municipality in their work with a new city plan. By studying the pedestrian movement patterns at Stortorget, Nygatan and Drottninggatan, the main walking paths and meeting points during all hours of the day was obtained.

Denna studie undersöker hur begravningsbyrån Fonus valde att bemöta en kritisk artikel, publicerad i Aftonbladet, med ett pressmeddelande som lades upp på den egna hemsidan. Uppsatsen undersöker först vilka retoriska verktyg som har använts i skapandet av detta meddelande, och sett från Benoits teori om Image Repair, vilka strategier som använts och hur användningen av dessa har sett ut.Därefter söker studien att praktiskt undersöka detta budskap genom att låta en utvald grupp respondenter ta del av materialet samtidigt som de i personliga intervjuer får svara på frågor om det de läst. Här utsätts respondenterna först för negativa påståenden riktade mot Fonus för att färga deras åsikt om företaget innan de får ta del av pressmeddelandet. Syftet är att undersöka om Fonus textbaserade kriskommunikation kan påverka respondenterna och deras attityd mot företaget i en positiv riktning.Undersökningens slutsats är att ett budskap som utformats med en väl balanserad retorik och ett väl avvägt bruk av Benoits strategier, utgör ett fruktbart sätt att påverka mottagaren i den önskade riktningen..

Native spider silk is an attractive lightweight natural polymeric material with a unique combination of strength, extendibility and flexibility. Synthetic, recombinant spider silk is an attractive biomaterial with several possible fields of application. When a foreign material is introduced to blood, this can for example cause unwanted coagulation and complement activation. The aim of this study was to investigate if coatings of heparin or albumin could improve the blood compatibility of films of recombinant spider silk and to develop an initial method to do so. Hypothetically, objects like pacemakers, stents and dental implants could be covered with spider silk films of high blood compatibility to reduce potentially harmful foreign body reactions caused by the immune defense. Increased blood compatibility would likely lead to improvements for both the individual patients and the society thanks to reduced load on healthcare institutions. Our objective was to assess the blood compatibility of both functionalized and non-functionalized recombinant spider silk by evaluating coagulation and activation of the complement system of the immune defense. Coagulation was evaluated visually on glass slides and complement activation was analyzed by measuring the concentration of the complement system mediator C3a in blood samples that had been exposed to the different materials. This study introduces a non-toxic and easy performed method of improving the blood compatibility of recombinant spider silk films by adding a heparin coating. Heparin coated surfaces had statistically significantly higher blood compatibility than uncoated surfaces. The effects of albumin coating of films were less clear compared to the results of heparin coated films. Complement activation could not be evaluated because of high activation in all samples prior contact with the materials that were included in the study..

The aim of this study was to examine self-harming women?s own experiences. To try and raise understanding and awareness about how they themselves create their identity and meaning round the self-harming behaviour. Our three questions were; how do the young women conceive society?s reactions on their self-harming behaviour? Do the young women express an imposed or self-elected alienation? If so, in what way? In what way do the young self-harming women construe their own identity in relation to the self-harming behaviour?We have used a narrative approach when we have examined the blogs as life stories in the sense that all our lives and everything in them is a story by definition.

The purpose of this study is to examine which factors played an important role in the food price crisis of 2007-2008. Theories used are Microeconomic theory, explaining changes in supply and demand, and Macroeconomic theory, explaining the impact of changes in exchange rate on prices. A theory regarding speculation is also used to explain the impact of speculative activities effects on price. The method used is multiple regression analysis in order to determine the effects which ethanol production, oil price and dollar exchange rate had on the surge in the price of corn, rice and wheat.The data used is in monthly observations during the period 2005-2008. However, other factors are taken into consideration during the study, such as production quantity, stock size, economic growth, speculative activity and population growth.

The aim of this study was to examine how two integrating social enterprises relate to and combines social, ecological and economic sustainability and how they work with sustainable development in the field of social work. The study has been focusing on three questions: What are the values underpinning ?Macken? and ?Vägen uts? approach to sustainable development? What motivates these companies to work with ecological sustainability in the creation of new jobs? How do these companies combine social, ecological and economic sustainability? To answer our questions we have been interviewing nine employees through semi-structured interviews combined with observations and this study was analysed through a symbolic perspective. The conclusion of this study showed that these companies worked with specific themes to reach social sustainability. Recurring themes in the study was empowerment, recovery and the employee?s own experience of exclusion.

The Swedish Prime Minister, Tage Erlander, made a speech on the 22 of August 1961 in which he dismissed speculation that Sweden was seeking to abandon its neutral stance and non-alignment in foreign policy with a view to requesting membership of the European Economic Community. The reason was that the EEC was supposed to have a political part where a connection with NATO should have existed. This speech led to a domestic discussion which has been called the most intense debate of foreign affairs in recent history. The purpose of this paper is to analyse the reactions of the other parliamentary parties to Erlander?s speech.