Målet med detta examensarbete, utfört på uppdrag av Vectura Consulting AB, har varit att undersöka möjligheten att ansluta en vindkraftpark till järnvägens kontaktledningsnät. Möjligheten att koppla om vindkraftparken till järnvägens hjälpkraftnät, som bland annat förser växelvärmare och signalsystem med effekt, har också undersökts. Eftersom kontaktledningsnätet och hjälpkraftnätet arbetar med olika frekvenser och spänningar, 16? Hz och 15 kV respektive 50 Hz och 22 kV, måste därför en komplett krets för frekvensomvandling, spänningsomvandling och omkoppling tas fram. Projektet har begränsats till en del av Botniabanan, sträckan Örnsköldsvik-Nordmaling.I denna rapport har trafikfrekvensen på den valda sträckan på Botniabanan undersökts för att bestämma en genererad effekt till inkopplingspunkten, samt för att undersöka när det kan vara lämpligt att koppla om till hjälpkraftnätet.

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.

AbstractTitle: The New Type of Music Industry at AllEars.se (Den nya musikbranschen på AllEars.se)Number of pages: 49 (53 including enclosures)Author: Viktor BackemarTutor: Else NygrenCourse: Media och Communication Studies CPeriod: Fall 2007University: Division of Media and Communication, Department of Information Science, Uppsala University.Purpose: The purpose of this paper is to compare AllEars´ own view of the website AllEars.se to an observed view of the same site. The comparison is based on theories regarding the Internet in today?s society, convergence, communities and collective intelligence, interactivity and participation, and business in today?s society.Method: Since the paper has a purpose to compare two views of the same website there are two main methods in use. AllEars´ own view has been created via an interview with the company?s CEO, a press release that was released in connection with the launch of the website and texts found on the website.

In order to fully grasp the phenomena 'City' we must understand its political structure as an integrated part of its physical structure and vice versa. This thesis focuses on one crucial element of the City, the public space, and discusses it in relation to the public realm, or sphere, of the City. The aim is to see if it is possible to conceive public space as a spatial dimension of power, and if so, how to analyse this. With the help of the theoretical tool of two ideal types of the configuration of public space, "The city as civic public life" and "The city as authoritarian control" an empirical study is carried out on the case of Prishtina, capital of Kosovo.Conclusions made are that function and use of a city's public spaces can be understood in relation to changes in the political climate of the society. Furthermore, a void in the asset of concepts offered by the ideal types is found ? and therefore also need for new concepts to describe and understand a public space undergoing a dynamic transformation, as being a part of a city in political transition..

This candidate thesis contains the possibility of expand the Swedish photovoltaic market through photovoltaic cooperatives and a photovoltaic exchange. In the current situation there is a lot of problems with production of electricity from photovoltaic, that?s why we show some possibilities how to avoid these. To understand the problem with photovoltaic produced electricity we first give you a background.We show how to expand the Swedish photovoltaic market by describing how a photovoltaic cooperative and photovoltaic exchange could work in Sweden. It have been confirmed from our market research that the interest of photovoltaic cooperative and exchange is high.To find out how profitable photovoltaic is in Sweden, have three projections been made.

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.

Målet med detta examensarbete, utfört på uppdrag av Vectura Consulting AB, har varit att undersöka möjligheten att ansluta en vindkraftpark till järnvägens kontaktledningsnät. Möjligheten att koppla om vindkraftparken till järnvägens hjälpkraftnät, som bland annat förser växelvärmare och signalsystem med effekt, har också undersökts. Eftersom kontaktledningsnätet och hjälpkraftnätet arbetar med olika frekvenser och spänningar, 16? Hz och 15 kV respektive 50 Hz och 22 kV, måste därför en komplett krets för frekvensomvandling, spänningsomvandling och omkoppling tas fram. Projektet har begränsats till en del av Botniabanan, sträckan Örnsköldsvik-Nordmaling.I denna rapport har trafikfrekvensen på den valda sträckan på Botniabanan undersökts för att bestämma en genererad effekt till inkopplingspunkten, samt för att undersöka när det kan vara lämpligt att koppla om till hjälpkraftnätet.

Syfte och frågeställningarStudien genomfördes med syftet att specificera vilken intensitet och duration vid uppvärmning som är optimal för att få ut största möjliga effekt vid anaerob prestation i form av maximalt vertikalhopp och fem sekunders maximal cykelsprint. Studien byggde på tre frågeställningar: På vilket sätt påverkar uppvärmningen prestationen vid ett maximalt vertikalhopp? På vilket sätt påverkar uppvärmningen prestationen vid ett maximalt fem sekunders sprinttest? Vilken uppvärmning är optimal för maximal muskulär explosivitet?MetodDesignen var en kvantitativ experimentell studie som innefattade fyra fysiskt aktiva kvinnor med genomsnittsålder på 24 år. Testerna bestod av nio tillfällen där en slumpad uppvärmning på ergometercykel genomfördes varje gång. Därefter genomfördes tre vertikalhopp, så kallade counter movement jump, på en kraftplatta och tre fem-sekunders sprint (5sCST) på Monarks Peak Bike.

The following Bachelor?s thesis examines how three Swedish national newspapers (Dagens Nyheter, Svenska Dagbladet and Aftonbladet), which all represent different points on the ideological spectrum, portray victim and perpetrator in their representation of rape during the year 2011. The thesis examines the newspapers news, editorial pages and reports of rape. The study uses a quantitative approach with qualitative elements which has its foundation in the theory of social constructivism and priming theory. Political science can be studied from the perspective of power, and media has a central role of this power.

My thesis brings up the subject of power. In the 33 local authorities we have in Skåne, I have made a quantitative study, to see how many young people that are included in the power of politics, through local authorities parliament. This is the first of the two parts that I have devided my thesis into. The second part is qualitative and examines four young politicians, and their thoughts on holding a position that is so unusual to hold at their age. This is the basis for my analysis where I bring up age as a form of discrimination.

Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.

The focus of this essay is on the mechanisms of inclusion and exclusion in different feminism rooms. Seven activists taking part in several forms of feminism projects, organisations, networks and demonstrations are interviewed and the essay analyzes whether the participants themselves feel included or excluded in feminism rooms. If they have motives to include or exclude different groups of people are something that is also looked into. Intersectionality and phenomenology are used as an analytical and methodological approach throughout this essay. The results have shown that the participants feel included and excluded due to different intersections of power.

Målet med detta examensarbete, utfört på uppdrag av Vectura Consulting AB, har varit att undersöka möjligheten att ansluta en vindkraftpark till järnvägens kontaktledningsnät. Möjligheten att koppla om vindkraftparken till järnvägens hjälpkraftnät, som bland annat förser växelvärmare och signalsystem med effekt, har också undersökts. Eftersom kontaktledningsnätet och hjälpkraftnätet arbetar med olika frekvenser och spänningar, 16? Hz och 15 kV respektive 50 Hz och 22 kV, måste därför en komplett krets för frekvensomvandling, spänningsomvandling och omkoppling tas fram. Projektet har begränsats till en del av Botniabanan, sträckan Örnsköldsvik-Nordmaling.I denna rapport har trafikfrekvensen på den valda sträckan på Botniabanan undersökts för att bestämma en genererad effekt till inkopplingspunkten, samt för att undersöka när det kan vara lämpligt att koppla om till hjälpkraftnätet.

The purpose of this study was to examine how school counselors in a specific municipalityviewed their work situation, if they experienced stress and how they would handle that stress.Five school counselors out of eight in the specific municipality participated in qualitativeinterviews where they could describe their feelings and thoughts. Their experiences wasexamined and analyzed with the theories of coping and empowerment. The results showedthat there were unhealthy levels of stress in the profession amongst the five counselors. It alsoshowed that the uttermost reason for the experienced unhealthy stress was the feeling of notbeing able to give as much time and help to the pupils as they want and need. The reason forthis was that an increasing number of pupils were, and are, experiencing unhappiness and arein need of seeing the school counselor.

This paper examines the power producing dams along the Ume-river as an integral part of and a result from the urbanization process in Sweden during industrial capitalism. The aim of the paper is to contribute to the knowledge of the urbanization process in Sweden in general and of its traces along the Ume river in the county of Västerbotten in particular. The paper applies the theory of concentrated urbanization and extended urbanization put forward by Neil Brenner and Christian Schmid (2015) and argues that the building of power producing dams along the Ume-river is part of an extended urbanization process. This becomes particularly evident when examining the vast physical structures that is the dams, situated in an otherwise remote and sparsely populated area. These vast physical structures are also very well connected to a nation wide electric grid that has connections to bordering countries as well.