Since 2004, wind power has had the largest installation of new capacity compared to other energy sources in Sweden. Accommodating new wind power may require strengthening or rebuilding of the existing grid in areas where the grid is already loaded to maximum capacity. This master thesis examine the possibility of a new 400/130 kV substation in Yttermalung, Sweden, with a connection to the two neighboring regional grids in Dalarna and Värmland owned by Fortum. This substation would provide a new connection point to the Swedish transmission system as well as an interconnection of the two, currently separated, regional grids. Different expansion scenarios where a substation with and without series compensation or a phase shifting transformer (PST) to control active power flow were studied.

This master?s thesis deals with integrating simulations using Agilents Electronic Design Automation tool ADS with customized Matlab scripts, for solving complex analog and digital radio architectures. In particular, it addresses predistortion, realized in the digital domain, of power amplifiers, modeled in the analog domain. The former is implemented in Matlab while the latter is implemented in ADS. Two versions of integrating the two systems have been tested: 1) Iterative approach on sample basis and 2) Scheduled batch solution by matrix inversion.

Den 1 januari 1999 bildade elva länder (Belgien, Finland, Frankrike, Italien, Irland, Luxemburg, Nederländerna, Portugal, Spanien, Tyskland och Österrike) en europeisk valutaunion, det som också kallas euroområdet. Grekland anslöt sig, som en tolfte och ny deltagare, i januari 2001. Även om Sverige, Danmark och Storbritannien inte deltar från start har det varit klart att EMU kommer få konsekvenser för olika sektorer.Frågorna som behandlats i detta arbete är följande:Har EMU haft en effekt på de finansiella marknaderna i de länder som är med i valutaunionen?Har Sveriges, Storbritanniens och Danmarks finansiella marknader förändrats på samma sätt som i de länder som är med i EMU, fast dessa länder står utanför?Syftet med detta arbete är att analysera de finansiella marknaderna, genom beräkningar av vissa kända finansiella variabler, i de länder som deltar i valutaunionen och tre länder som står utanför (Sverige, Danmark och Storbritannien). Detta för att se om de finansiella marknaderna har påverkats av EMU och hur de har påverkats i och med inträdet.De variabler som behandlats är; ?-värdet, för att se om länderna går mot en gemensam marknadsrisk.

I mitt arbete studerar jag H&M:s språkbruk i information kring hållbart mode. Jag har avgränsat mig till texten På väg mot hållbar bomull, en informationstext på H&M:s externa webbplats www.hm.com. Syftet med min studie är att visa hur man med en anpassad form av Klarspråk, tillsammans med en tydlig koppling mellan ord och handling i text, kan öka förutsättningarna för större kunskap och vägledning till hållbart mode.I min studie använder jag mig av två metoder, en textanalys och en semistrukturerad fokusgrupp. Syftet är att undersöka hur läslig, läsbar och läsvärd H&M:s text är för målgruppen unga människor och att få dem att berätta om deras syn på konsumtion i allmänhet och hållbart mode i synnerhet, samt hur de tänker kring hur man kan underlätta till en mer hållbar modekonsumtion.Utifrån min empiri och mitt teoretiska ramverk har jag tagit fram en ny text, skriven med en för målgruppen unga människor anpassad form av Klarspråk. Den nya texten utgår från två utvalda textstycken i den analyserade texten På väg mot hållbart mode och är för målgruppen därefter anpassad så att läslighet, läsbarhet och läsvärdet har ökat.

This masters thesis concerns a modeling project performed at Volvo Technology in Gothenburg, Sweden. The main purpose of the project has been to develop a physical model of the climate in construction vehicles that later on can be used in the development of an electronic climate controller. The focus of the work has been on one type of wheel loader and one type of excavator. The temperature inside the compartment has been set equal to the notion climate. With physical theories about air flow and heat transfer in respect, relations between the components in the climate unit and the compartment has been calculated.

Magnetic resonance imaging (MRI) has the potential to be used for the diagnosis and study of osteoarthrosis in the equine tarsal region. In the development of new diagnostic MRI techniques cadaver specimens are often used. To allow the use of cadaver legs for these types of studies it is important to know the effect of time after death on the MRI image. Since the relaxation times are temperature dependent, it is interesting to examine whether the time after death and the temperature of the cadaver may play a role in the image appearance and quality. The radio pulse sequences that show the different types of tissues are also important to know when pathological evaluation with MRI is used.

WSP building physics in Stockholm has certified the preschool Temmelburken in Bromma with the system of certification Miljöbyggnad. The rating of the building became BRONZE. In this thesis the preschool has been investigated with respect to the three areas: thermal climate, use of energy and improving of the level of certification. The thermal climate at the preschool has been investigated by a questionnaire survey and by measurements in order to do comparisons between the results from the two investigations as well as with the results of the simulations that WSP has done at the certification of the preschool. The differences between the results from the simulations and the questionnaire survey for winter as well as from the measurement performed with a comfort meter the 19th of March are concidered to be reasonably small since they give rise to the same rating according to Miljöbyggnad.   Operational data for the use of energy for the preschool have been obtained in order to do comparisons with simulations performed by WSP and Svenska Besiktningar AB. The comparison shows that the simulated values for the specific use of energy are lower than what the real specific use of energy would be for the preschool, since just the operational data for the heat energy is higher than the simulated values. At the investigation of the possibility of improving the level of certification it was found that the rating of the preschool can be raised from BRONZE to SILVER by improving the ratings of the ?thermal climate summer? and the ?daylight?.

Militära insatser i urban miljö kommer troligen att öka alltmer. Detta kräver soldater till fots eftersom dessa lättare kan förflytta sig via och mellan byggnader. Varje deltagande soldat kommer att behöva egen radioutrustning. Då stadsmiljö är ett relativt outforskat område vad gäller militär radiokommunikation är det viktigt att öka förståelsen för radiovågors utbredning i stadsmiljö. Härtill har institutionen för Informationsöverföring på FOI köpt in programmet Radiowave Propagation Simulator (RPS).

AbstractThis master thesis was performed at Scania transmission department in Södertälje, where the manufacturing of gears is done. Today a large amount of manual handling is performed between the machining and the hardening process. Most of the manual handling is done at the heat treatment department. The purpose of this master thesis is to give a suggestion on how to reduce or eliminate the manual handling at the heat treatment department. The possibility to use the same packaging throughout the processes will also be investigated.

Every year, KTH participates in the Shell Eco Marathon, a competition whose goal is to design a vehicle that can go as far as possible using only the equivalent energy of one liter of petrol fuel. This year, one of KTH?s contributions to this race is the Agilis prototype; a car powered by a uniquely configured HCCI-engine developed at the university. The engine is dependent of several subsystems in order to work properly, among other, systems for cooling and lubrication.Combustion engines are in need of a cooling system that reduces the heat developed during the combustion. In general, two main types of cooling systems are employed; either air cooling, where the outside of the cylinder is exposed to a flow of the surrounding air, ore water cooling, where water flows in tubes around the engine, and the heat are transferred by the water to the surrounding air through a heat exchanger.The purpose of the lubrication system is to prevent the friction that builds up in the interference between moving parts in the engine.

During the period called Little Ice Age (1400 ~ 1900) the climate of northern Europe was in an annual year-basis overall colder than it was before and after that period. The numbers of short, cold and rainy summers and long, bitter-cold winters where often repetitive under the approximately 500-years the period lasted. In Scandinavia, the coldest time during this period is estimated to have started around the end of the 16th century and lasted to the beginning of the 18th century. Trees growing at the tree-line are limited by temperature for their annual growth and hence showing differences of growth during changes in the climate,  a method called dendroclimatology. The variations of growth can be read in the tree-rings either by analyze the width of the ring or by look into the density of the wood and is used to reconstruct past climates.

During spring 2009 a three meter tall and laughing robot was developed in collaboration between Royal Institute of Technology and Royal University College of Fine Arts. The robots function and esthetics is based on an existing toy robot called Elmo. Elmo is 30 cm tall but now the goal was to make it 1000 times bigger in order to present it on the spring exhibition of Royal University College of Fine Arts. Due to only four months of developing and building time a demand of fast determination and good planning was required. In order to make a good structure for the project it is divided into five phases: Analysis of Elmo, planning, concept development, detail construction and finally product development and testing.In the first phase valuable knowledge is obtained according to the movements and geometry of Elmo.

Rift Valley Fever (RVF) is a disease caused by Rift Valley Fever virus (RVFV), which is an arbovirus. An arbovirus is a virus that is transmitted by an arthropod vector, in this case a mosquito. The virus is a member of the Phlebovirus genus in the family Bunyaviridae. It was first identified in the Rift Valley in Kenya in 1930. The disease is a zoonosis but mainly affects domestic ruminants inducing massive abortions and a high mortality among young animals.

Our society has become more and more digitalized and we have access to more information than ever before, which has had an effect on both our personal and professional lives. This change has naturally also changed the way in which organizations are structured and how they communicate ? both internally and externally. Intranets, e-mail and other technical channels are an important part of most organizations in-house communication today.The aim of this study is to examine how the internal communication in a medium-sized firm, CranabSlagkraft in the north of Sweden, works. The focus in the study is on the existing intranet, and if there are any differences in the opinions between the firms leaders and the employees that works in the production.

Bakgrund: Bland det värsta som kan hända företag är att få en going-concern varning eftersom det är en signal till intressenter om att företag inte tros överleva under en längre tidsperiod. Tidigare studier har studerat effekterna av en going-concern varning för företags intressenter och på kortsikt vad som händer med företag. Det gör att vi vill studera hur företag agerar för att undvika konkurs och likvidation och därmed överleva going-concern varning.Syfte: Syftet med studien är att förklara hur företag agerar för att överleva en going-concern varning med fokus på kommunikation. Vi kommer därför att skapa en modell.Metod: Studien har en forskningsansats som är deduktiv där vi tar avstamp från resursberoende teorin, institutionell teori och attribution theory. Den empiriska datan är av kvantitativ art och är insamlad via enkätundersökning samt en dokumentstudie av årsredovisningar.Slutsats: Vi har kommit fram till att en going-concern varning är en kris för företag.