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.

Utgångspunkten för denna uppsats är en förstudie om den trådlösa tekniken Near Field Communication (NFC), som vi författare genomförde via en enkät. Några av svaren på enkäten som berörde ämnet riskbeteende fick oss att undra varför respondenter svarade som de gjorde på vissa frågor, då detta kunde innebära att de tog en risk med personlig information. Detta ledde till att vi ville ta reda på varför och till vilken gräns personer är villiga att ta risker med ny teknik, men även vilka variabler som spelar in i deras beslut att använda eller inte använda ny teknik. Vårt tillvägagångssätt är en litteraturstudie för att förstå vad som menas med användbarhet, riskbeteende och pålitlighet samt hur dessa hänger ihop. Efter att vi bildat oss en uppfattning om dessa och fördjupat oss lite mer inom ämnena, så genomförde vi intervjuer för att se hur den information vi forskat fram förhöll sig till våra respondenter.

A study has been performed that investigates the variation of iron content in groundwater.The study was initiated by Midvatten AB, which noticed that the iron content in groundwater samples can vary greatly over small distances. The purpose of this study was to geochemically and geohydrologically determine the factors that influence the content of iron and manganese in groundwater from a selection of eskers in Dalarna, and determine how to best sample groundwater with the method used by Midvatten AB. An evaluation was made of how the vertical variation in soil material, water composition, pumping time and pipe material affects the content of iron in groundwater. Piper diagrams were used to study the relationship between the chemical composition of the groundwater and the content of iron and manganese in groundwater samples from the studied areas. The groundwater from the studied areas was then classified in the Piper diagrams, according to the content of the major ions.

The Swedish Warmblood riding horse is a popular horse for sport in Sweden, and the breeding goal is to produce competitive horses in both show jumping and dressage. The breed has its origin in native Swedish cavalry horses but has been highly influenced by foreign stallions throughout the years. Breeding values are estimated based on the results from young horse field test, which are held for 3- or 4-year old horses, and competition data. The young horse field tests are highly correlated with later performances in competition. The total proportion of horses with own observations to include in the genetic evaluation are slightly under 50 %, and in most cases their pedigrees are known.

This report investigates the possibility to use non-petroleum based adhesive (biobitumen) in asphalt. The main reasons for replacing bitumen are the fact that oil prices are rising, the threat of peak oil and the fact that the asphalt industry is becoming more environmentally friendly.The main purpose of this report is to investigate whether there are any non-petroleum based adhesives on the market. If so, how can they be used? The questions covered are:? Are there any other alternative asphalt coatings available?? Can bio-oils be used in asphalt?? If the bio-oils can be used, what are the details their properties?? How does a cold climate affect the bio binders?? What is the Swedish asphalt industry?s opinion about bio asphalt?The project was concluded through literature studies, consultations with people in the asphalt industry and through several interviews.The conclusion of this report is that there are some existing non-petroleum based adhesives on the market. They are mainly used for bike paths, sidewalks and parkareas.

The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.

This Masters thesis concerns difficulties experienced by Gender Studies researchers in an information seeking context. The aim is to identify, and study the cause of, these potential difficulties by asking the following questions: How do researchers in Gender Studies seek information? What difficulties may arise when information seeking is carried out in Gender Studies? What may be the cause of these difficulties? What does Gender Studies consist of? In order to find feasible answers to these questions, particular attention is paid to the context in which the researchers exist and work. The database KVINNSAM serves as an example of how libraries have tried to overcome barriers in information seeking in Gender Studies. The method used is a qualitative one based on interviews and literature studies.

The present climate discussion has made energy efficiency an interesting topic. Saving energy does not only help the climate but also saves money for the energy consumer. The purpose of this thesis was to examine the potential of heat recovering from milk cooling. Two milk farms, one with voluntary milking system, VMS, and the other with conventional milking system was used to measure interesting temperatures and electricity consumptions. The numbers were used both to do theoretical calculations and to construct a SIMULINK model. To calculate the potential for heat at milk farms theoretical calculations were made in MATLAB using a reference farm with different combinations of heat recovery and pre cooling. The farm was assumed to keep a dwelling house with the annual heat consumption 18165 kWh.

The sites I visit turned into routines a long time ago. Everywhere someone has decided what should be there and what will not fit. I retreat into my daydreams, away from everyday life. A longing for something different, something wonderful. I decided to go where I've never been, searching for something unknown.

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.

This essay aims to examine how theories within childhood sociology have evolved. The main questions are: Who are the central scientists within the field, what are their objects of study and who are the intended recipients of their work? How can the origin of the theories be described? Which elements are central in the theories and have they changed over time? How can the theories be evaluated based on criteria of valid theories?The study was based on a qualitative literature review. Six scientists' publications were examined, ranging from the time of the theories establishment to present time. In the analysis hermeneutics and theories of scientific development were used to seek explanations.The main results show that the central elements in the theories describe childhood as a social phenomenon and a structural category.

The aim of this thesis is to explore the relationship between the surrounding world and the library with respect to the library?s need to provide a Library 2.0 web site. We also explore the relationship between the physical and the virtual library. Our research objects are the public libraries of Stockholm and the Umeå region, that maintain the web sites Biblioteket.se and minabibliotek.se respectively. By applying Dorte Skot-Hansen's theory of rationales we found that the Stockholm public library is acting in accordance with the experience rationale, whereas the libraries of Umeå are influenced by the instrumental rationale.

Alla elever i dagens skola, oberoende av inlärningskapacitet, skall ges likvärdiga möjligheter till progressivitet av befintliga kunskaper i det egna lärandet. Iakttagelser under bland annat VFU indikerade en problematik i enskilda lärares förmåga till att förse samtliga elever med kunskapsmässiga utmaningar. En förbigången elevgrupp utgjordes här av klassens snabba inlärare; elever med hög potential. Syftet med undersökningen har varit att ur ett lärarperspektiv, söka reda på fungerande arbetsmetoder för att nå och tillgodose samtliga elevers kunskapsmässiga behov i undervisningen. För att belysa aspekter, specifika ur yrkesverksamma lärares synvinkel, valdes en kvalitativ intervjumetod av semistrukturerad art för undersökningen.

The blog has become a widely discussed subject, but while marketers do invest in blogs, there is little evidence on the how the blog works as a marketing tool. Therefore, we thought it would be interesting to create a greater understanding of the blog's potential communication effects. To demonstrate the potential of the blog in comparison with more traditional media, we decided to compare the communication effects achieved by a blog with those achieved by an online magazine. We pursued an experiment where we exposed an identical text about a brand to respondents in seven blogs and in seven online papers and measured the resulting communication effects in terms of attitudes and intentions towards the exposed brand. The quantitative study showed that the blog in some basic aspects works as a more traditional media; when the consumer forms positive attitudes toward a text in a blog, the attitude spills over to the attitude toward the brand, with higher buying and w-o-m intentions as a consequence.

Byggproduktionen är, på grund av sina invecklade arbetsmoment och dynamiska arbetsplatser, drabbad av svåra informations- och kommunikationsproblem. Veidekke Sverige AB använder sig av virtuellt byggandet (VDC) för att lösa dessa hinder i utförandet av sina projekt. VDC tillämpar flera olika informations- och kommunikationstekniker (ICT) och har visat sig vara lönsamt vid projektering. Under projektering med VDC samlas alla beslutsbehöriga parter i ett interaktivt rum där information förmedlas snabbt och effektiv med hjälp av olika visualiseringstekniker. Då VDC saknar liknande arbetsmetoder som kan tillämpas i produktionen, används fortfarande traditionella informations- och kommunikationsprinciper.Genom ett samarbete med Veidekke implementerades ett ICT-program i ett bostadsprojekt för att undersöka hur dess funktioner påverkade de rådande informations- och kommunikations-problem.