District heating covers around 80 % of the heating demand in apartment buildings and 10 % in single-family homes in Sweden. In the year 2010 the total input of energy to the Swedish district heating grids was about 70 TWh, which corresponds to 11 % of the total energy input to the whole energy system in the country. Through the combined production of heat and power the CHP-plants often reaches an efficiency of 90 % from energy in the fuel to produced heat and power. In order to keep the efficiency high it is important for the owners of the plant to have good knowledge about the plants performance at different operation points. Strängnäs Energi AB initiated this diploma work together with FVB Sverige ab in order to come up with a program for short term planning of the production of heat and power at the company´s CHP-plant.The work consists of three main parts.

In the following study I probe the social world of hard-rock music. By conducting interviews with four young male enthusiasts of this music I try to develop a general picture of this social world, as well as of the basic elements on which this particular subculture is constructed. The identity of a hard-rocker is based upon a number of factors beyond just a preference for that music. Throughout the interviews I encountered many implicit norms that one must followed in order to be able to see oneself as a true hard-rocker. I also found that from the respondents? perspective, the mainstream culture has, throughout the history of metal music, used various ways to counter the spreading of this genre.

The aim of this master thesis is to examine how female identity is formed in two novels and two short stories from the 1880?s. As a framework we rely on the method outlined by Pierre Bourdieu when he approaches the cultural and social worlds through the concept of fields. To understand the female position during that time we use Michel Foucault?s work about the history of sex, Thomas Laqueur?s theories about the rise of sexes and Karin Johannisson?s study about the exploration of the dark continent (i.e.

This report focuses on work schedules in the retail sector, where work schedules are dynamic and change according to the needs and work schedule is a requirement for an effective structure of the work. This structure is important for maintaining a good order and all this is a requirement for a profitable business for both long and short term future. Work schedule also contributes to safety at the workplace. The purpose of this study was to investigate the transfer of knowledge by work schedules. The HRM employee we interviewed worked in Reitan Servicehandel Sverige AB which includes 7-Eleven, Pressbyrån and Shell.

Electronic article surveillance (EAS) is widely used in shops and libraries together with an RF-tag attached to the goods or books in order to prevent shoplifting. By implementing the addition of a moisture sensor to the RF-tag, other functions become possible, including the ability to use as an alarm with regards to frozen goods, which have been shipped but which have melted and have, subsequently, refrozen. In- relation to care for the elderly, one time-consuming step involves checking whether there is the necessity for a change of diaper and this can, instead, be based on an RF-tag with an EAS-system alarm. A preliminary investigation was made using the moisture sensors, which involved how the resistance changes when liquid and/or heat is applied. A simulation of the LCCR circuit (RF-tag with the sensor) was conducted in order to determine how the resonance frequency changes for different resistances levels.

This report describes the development of a sample loader for my diploma work at Q-linea AB in Uppsala. The sample loader will replace the process of loading fluid samples into Q-linea?s instrument for biomolecule analysis. The earlier process was done by hand and was a time consuming and inefficient task.The work was initiated with a design phase where an overview of the system was created. The sample loader will be receiving text commands from a PC that coordinates all the subsystems like pumps and lasers on the analysis instrument.

On the internal market within the EU, freedom of establishment under articles 49 and54 TEU stipulates that companies have the right to set up businesses in other MemberStates. On the internal market there are 27 different national tax law systems whichhave caused obstacles regaring taxation between Member States. These obstacles havebeen shown deterrent when a company enters a new market. One problem area is thelack of cross-border loss compensation for groups. This means that cross-bordergroups is over taxed when they are unable to set of gains against losses.

When driving hard and cornering on a circuit good control of a car?s roll is desired, so the car reaches steady state quickly but yet in a controlled fashion. This control is mainly given by the combination of the cars springs, shock absorbers and anti-roll bars.The aim of this report is to investigate, analyze and measure a Porsche Boxster?s turn in behaviour and roll dynamics as well as with the aid of simulation results give suggestions for improvement of the previous mentioned combination.Two different simulations were made, one based on a simpler model that was based on an evolved version of the bicycle model in Matlab and one was more advanced model in the simulation software rFactor. Measurements of the real car was made using a GPS-based measurement system.

North of the city of Stockholm lies the area called Södra Roslagen composed of several municipalities. The purpose of this essay is to discover how local informants describe the food culture of the region and analyse why some types of food are mentioned and others are excluded. Several people within the food industry of Södra Roslagen were given surveys asking them to describe the food habits of the area, from commodities and certain dishes to traditions. These answers were analysed using the theories regional food, regiocentrism, revitalisation, placeless food and the idea of viewing culture through the long and the short perspective.One informant mentioned that professionals in the food industry of the region tend to follow trends from the rest of the world and another that many producers work with ecological requirements. Södra Roslagen was also defined by some as having a taste of summer as this coastal area sees an influx of visitors during that season.

This report deals with prefabricated bathrooms and the advantage, during the production process, they have compared to ordinary produced bathrooms.The work is done together with the building company JM. The common task is to investigate if the manufactures, in spite of standardized design can meet the concept of JM, i.e. high flexibility and adjustment towards the customer. In JM they are doubtful to the method, as they did not yet worked with prefabricated modules and think that the choises for the costumer will be limited.There will be a short resume of the progress of the bathrooms and its importance as sanitary and wellbeing.The recent problems with damage caused by damp in bathrooms. Have resultade in regulations.

Swedish: Det här kandidatarbetet undersöker om karaktärer med icke-normativ sexualitet finns representerade i digitala spel och hur dessa framställs. Arbetet har även fokus på de reaktioner samhället har visat i samband med att spel som behandlar ämnet icke-normativ sexualitet kommit ut på marknaden. Syftet är att uppmärksamma och ge insikt om icke-normativ sexualitet som ämne och hur diskussionen av detta kan leda till en utveckling inom spelmediet. Informationen som användes för att undersöka ämnet och dess reaktioner finns sammanställt under ett forskningsmomentet, vilket sedan utvecklas till flera noveller. Dessa noveller har sedan användes i en undersökning som genomfördes av 11 stycken deltagare.

The thesis was performed at Forsmarks Kraftgrupp AB in the department ofmechanical engineering, FTCM. Forsmark nuclear power plant has had problems with cracks in some of the controlrods which are placed in the reactor at Forsmark 3. To investigate the cause of this,material samples were taken from five of the damaged control rods. This sampling ofthe rods resulted too short rods to be transported in the shipping container to theinterim storage facility for used nuclear fuel in Oskarshamn. Control rods are crucial components in a nuclear reactor, regulating the reactoreffect by blocking or unblocking fuel rods. Control rods which have been in thereactor are always handled under water in order to protect against the radiation theyemit. The task was to design a control rod adapter that extends the control rod sotransport can be performed from Forsmark. The goal of the work was a complete setof blueprints so the control rod adapter can be manufactured and mounted on theshort control rods and then be transported to the interim storage facility. The work began with mapping of how control rods normally being handled from thereactor to the interim storage facility.

Vår studie bygger på artiklarna ”Fads, Martingales and Market efficiency” och ”Volume and Autocovariances in Short-Horizon Individual Security Returns” och är ett replikat av dessa. Studiens syfte är att undersöka förhållandet mellan förändringar i aktieomsättningen och veckoavkastningar för enskilda aktier på Stockholmsbörsen..

Local differentiation may occur during a short period of time and is part of the formation of new species. The isopod Asellus aquaticus is an example of a species in which local adaptation has occurred during a short period of time. An establishment of stonewort (Chara spp.) vegetation in Lake Tåkern (in the 2000) resulted in two different Asellus ecotypes; a lighter pigmented, smaller one that lives among stoneworts grazing periphytic algae, and a darker, larger ecotype that feeds on decaying leaves in reed (Phragmites australis vegetation. The purpose of this study was to examine whether there are differences in growth between ecotypes, depending on whether the food was periphytic algae or leaves, and to study the choice of substrates between the two food types. For the study, animals from both habitats were brought in from Lake Tåkern to the laboratory.

Bakgrund: I Sverige lever cirka 1,1 miljoner individer med en hjärt-kärlsjukdom. Hjärt-kärlsjuka individer skattar sin hälsorelaterade livskvalitet lägre än normalbefolkningen och lågt skattad hälsorelaterad livskvalitet kan medföra fler inläggningar på sjukhus samt en ökad risk att avlida i sin hjärt- kärlsjukdom.Syfte: Syftet med studien var att beskriva hälsorelaterad livskvalitet hos hjärt- kärlsjuka individer och hur kön, ålder, tobaksanvändning, graden av fysisk aktivitet, eller samtida sjukdom påverkar den hälsorelaterade livskvaliteten.Metod: Empirisk, deskriptiv tvärsnittsstudie med kvantitativ ansats. Valt mätinstrument var Short-Form 36 (SF-36), skala 0-100 där ett högre värde motsvarar en högre skattad hälsorelaterad livskvalitet. Databearbetning genomfördes med deskriptiv och analyserande statistik där SF-36 testades mot kön, ålder, tobaksvanor, graden av fysisk aktivitet, eller samtida sjukdom.Resultat: Totalt inkluderades 53 hjärt- kärlsjuka individer, varav 28 var män. Medelåldern i gruppen var 69,5 år (SD 11,9 år).