The gas turbines in the Swedish secondary reserve are reaching the end of their technical lifetime, hence alternative solutions need to be considered. One of the solutions thought to have the greatest potential is the use of so called consumptionreduction. By entering contracts with large consumers, agreements are made to reduce consumption in the event of major disturbances in the power system and thus being used as a secondary reserve. This thesis investigates the feasibility of consumption reduction as part of the secondary reserve. This has been achieved by developing a requirement specification for the disturbance reserve and by studying the technical and economic potential for consumption reduction among a range of consumers.The technical potential for consumption reduction that fulfils the requirements for participating in the secondary reserve are on average 750 MW in SE 3 and 98 MW in SE 4.

Atlas Copco Tools develops and manufactures handheld industrial tools. Heat and surface treatments are used to provide the tools with certain properties. There are no routines for the choice of treatment or for how to specify treatment on drawings. Production documents that are sent for production abroad may not be clear enough. Some treatments are known as trademarks and there are no instructions for how to specify these on drawings and in CAD-models.The purpose of this master thesis work is to create recommendations for the procedure of choosing heat and surface treatment.

This study is an attempt to investigate religious perceptions and its development, function and connection to religious practise within the Swedish extreme metal scene. This is performed mainly by a qualitative method of investigation, studying lyrical content published on a number of extreme metal albums, thereafter relating the lyrical progression to the progession of the scene as a whole and also to the development of individual religious belief and practise.The lyrically expressed manifestations of religiosity within the extreme metal scene prove to be related to religious practise in some cases, most visibly in the Christian parts of the scene.The study also indicates that development of religious expression often is evident regardless of religious preference. This development also regularly relates to an increase in musical evolution and prowess often achieved with increased age and maturity.Musically and lyrically, the extreme metal scene displays transgressive attributes which assist both individual and group in the process of creating identity, meaning and individuality.Experiencing extreme metal, in concert or in the privacy of one´s own home, can be one way of perceiving spirituality in this modern age..

Background: Flavan-3-ols are polyphenolic phytochemicals belonging to the flavonoids. Flavan-3-ols are present in many higher plants and are particularly concentrated in e.g. Camellia sinensis (tea) and Theobroma cacao (cacao) and have got attention due to their antioxidative capacity. Many studies have been able to associate flavan-3-ol-rich foods to improved endothelial function. The aim of the present work is to review the scientific literature and evaluate the evidence for positive effects of flavan-3-ols on endothelial dysfunction in humans. Method: Scientific articles describing intervention and observational studies about flavan-3-ols and endothelial dysfunction, were searched for on http://www.pubmed.org.

I was assigned to the thesis as part of a project GMA AB (Ground Machinery Applications AB) is running. The project aims to develop a new method for injection of drilled holes in rock walls. Currently, the injections usually involve cement but the basic idea of the project is to replace cement with a supplement called Silica sol.Silica sol is known as a gelling liquid. The gel time is controlled by a mixing of saline. Depending on the amount saline that gets mixed in, the gel time varies.

Syftet med föreliggande studie var att undersöka vilken betydelse finlandssvenska kvinnors upplevda nivå av stress, självkänsla och emotion management (att kunna hantera de egna känslorna) hade för deras förmåga att anpassa sig till en ny tillvaro i Schweiz. Utöver detta syftade studien att klargöra vilka överlappningar som fanns mellan self-efficacy och dimensionerna i Black, Mendenhall och Oddou (1991) modellen över internationell anpassning. Fyra olika skalor användes för att undersöka relationen mellan anpassningsförmåga och variablerna ovan. Resultatet baserat på 35 respondenter visade att anpassningsförmåga korrelerade både med självkänsla och self-efficacy (tilltro till sin egen förmåga). Kvinnorna skattade anpassningen till livet i Schweiz som ringa krävande, hade låga stressupplevelser och en god självkänsla.

The gas turbines in the Swedish secondary reserve are reaching the end of their technical lifetime, hence alternative solutions need to be considered. One of the solutions thought to have the greatest potential is the use of so called consumptionreduction. By entering contracts with large consumers, agreements are made to reduce consumption in the event of major disturbances in the power system and thus being used as a secondary reserve. This thesis investigates the feasibility of consumption reduction as part of the secondary reserve. This has been achieved by developing a requirement specification for the disturbance reserve and by studying the technical and economic potential for consumption reduction among a range of consumers.The technical potential for consumption reduction that fulfils the requirements for participating in the secondary reserve are on average 750 MW in SE 3 and 98 MW in SE 4.

Svenskorna är kända världen över för att vara både modemedvetna och trendkänsliga. Vi läser trendtidningar, modebloggar, och älskar att shoppa. Åren efter gymnasiet kanske vi läser vidare eller skaffar oss ett jobb utan kvalifikationskrav. Detta gör att vi föredrar att handla våra modeplagg så billigt som möjligt. Såkallat ?fast fashion?, plagg med hög trendfaktor som bara används en säsong, är det som säljer allra bäst just nu.

Grubbe Ventilation AB is a sheet metal and ventilation company who provides design, installation, service, and repair of ventilation. The company is expanding their business by building a new facility in Umeå, Västerbotten. The property is designed to be used for both office and industrial work.Grubbe Ventelation AB has not yet decided upon wish system which is to be established to provide the building with heating and cooling. The consulting firm Umeå Projekt Team has therefore been asked to investigate the possibilities to invest in geothermal- heating and cooling.If the investigation of a geothermal heating- and cooling system would provide favorable results it would be a very appropriate alternative that provides energy at low costs and are an environmentally friendly option as the energy comes from stored solar energy in the ground is provided by stored solar energy in the ground.The facility ´s heating and cooling consumptions are calculated in the program BV2 and the result indicate a heating demand of 185 000 kWh per year due to thermal transmittance, transmission losses, heating of warm water and a cooling requirement of 5500 kWh.Three different systems of geothermal heating and cooling were tested in the computer program Energy Earth Design. The results show no difference in the dimensioning of the drill hole if merely heating were to be used or both heating and cooling were to be established.

Denna uppsats försöker utreda vilken roll etnicitet spelar i det som betecknas som ett gängkrig i Köpenhamn. Hösten 2008 har ett stort antal skottlossningar ägt rum på Köpenhamns gator, och huvudaktörerna är Hells Angels /AK81 och en rad geografiskt baserade gäng.Vårt tillvägagångssätt har varit att analysera mediers och polisens agerande, men vi har också lagt stor vikt vid insamling av material genom intervjuer med respondenter från Blågårdsplads, Hells Angels, AK81 och Black Cobra. Vi har analyserat detta material med stöd av teorier kring hur etnicitet kan konstrueras och utnyttjas, häribland primordial, socialkonstruktivistisk och instrumentalistiska etnicitetsuppfattningar.Etnicitet har spelat en central roll i konflikten. Medier och polis har genom sin framställning av konfliktens parter bidragit till att konstruera etniska skiljelinjer i konflikten, linjer som primärt går mellan ?invandare? och danskar.

Denna studie belyser svårigheten för teknik och virtuell geografi att nå ut till mottagaren genom en kartläggning av e-postens geografi. För att skapa förståelse och fånga den osynliga processen bakom e-postens geografi  utgår uppsatsen dels från teorin Actor Network Theory (ANT) och dels från intervjuer.Under studiens gång uppstod ny förståelse för e-postens komplexitet och ledde fram till en reviderad syn. I början av uppsatsarbetet betraktades e-posten enbart utifrån sin funktion som aktant och intermediarie men i takt med att undersökningen fortgick framkom att den samtidigt, utöver dessa funktioner, fungerar e-posten som ett heterogent nätverk med betydelsefulla komponenter såsom aktörer och aktanter. Enligt uppsatsens konklusioner är e-postens trajektoria beroende av den strategi som producenten använder under skapandet av elektroniska meddelanden. Ett kontinuerligt arbete mellan producent och konsument krävs för att e-postens trajektoria ska upprätthållas och leda fram till att det elektroniska meddelande som löper igenom det virtuella nätverket når sitt syfte..

This essay discusses the width of the late medieval desertion of farms in Sweden from an archaeological perspective. The object of the essay is to investigate if archaeological investigations and research during the last 10-15 years have changed the view of the late medieval desertion in relation to the Scandinavian research project on deserted farms and villages.The essay also deals with questions on causes to the desertion and when desertion occurred. An ambition of the essay is also to give a general picture of archaeological investigations during the last 10-15 years considering the late medieval desertion. The analyses-material consists mainly of reports from archaeological investigations.Most of the investigations analysed in this essay are investigations of single farms. Because of this it is natural these investigations do not say much about the width of the desertion.

In year 2009, a new housing form (here referred to as "owned apartments", in Swedish called "ägarlägenheter") was introduced in Sweden. Owned apartments are in many countries the dominating form of housing tenure, but in Stockholm, to where this thesis is delimited, only four have been established in four years. There are many possible reasons for this low establishment, but the thesis writers believe the main reason to be that the owned apartment is situated in an organizational gap. With the hypothesis that the owned apartment is situated in an organizational gap and that there are opportunities to overcome this gap through interorganizational collaboration of the players on the market, this thesis strives towards examining if this is the case.By using Burt's theory of structural holes the concept of organizational gaps are elaborated to fit this context, since this area is previously unexplored.The data has mainly been gathered through in-depth interviews but also through secondary sources such as previous theses and newspaper articles. It has appeared that the majority of the central players are characterized by conservatism.

The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model based on data sampled every minute was developed to estimate the bearing temperature. Then a detector for detection of change in bearing temperature based on the CUSUM-algorithm was designed. Since the amount of data was very small the developed model was too uncertain to be used in a working system.The designed fault detection system showed to work well for the available data.

This master thesis was made to validate hydropower models of a turbine governor,Kaplan turbine and a Francis turbine in the power system simulator ARISTO atSvenska Kraftnät. The validation was made in three steps. The first step was to makesure the models was implement correctly in the simulator. The second was tocompare the simulation results from the Kaplan turbine model to data from a realhydropower plant. The comparison was made to see how the models could generatesimulation result that was similar to the reference power station.