The technological legacy from the early electrification of the Swedish railroads has resulted in a power grid with a lower grid frequency than the national power grid from which it is fed. Energy transfer between these power grids with different frequencies requires substations, adapting the grid frequency for the rail road power grid. For this purpose, a feeding power grid has been built, stretching across the country from Boden in the north to Tälle/Häggvik in the south.Power transfer in the Swedish power grid results in voltage angle differences which increase with increasing loads and transfer distance. These voltage angle differences are transferred from the power feeding substations to the rail road power grid, will in some extent cause loss of energy due to unwanted power flows from north to south.To minimize the losses due to this phenomenon, a power management system called EFS 132 kV has been developed and implemented. The system minimizes the unwanted power flows and controls the desired power flow for a good distribution of loads between the power feeding substations.This thesis investigates the extent of the transmission losses avoided due to the EFS 132 kV that coordinates the idling angles to a common reference point.The results indicate that EFS 132 kV affects the power flow, especially between the northern substations through an improved load distribution.

Difficult calvings and stillborn calves are costly for the producer and lowering these frequencies can decrease the costs for the dairy operation. Each calving in the herd is registered by the farmer and stored in a central database. The information is used to monitor the level of calving-difficulties and stillborn calves in the herd and nationally. Monitoring of these registrations is important to detect possible changes. Breeding-value prediction for calving traits is based on the calving information in the database.

One of ABB Power Systems´s business areas is HVDC (High Voltage Direct Current) technology. HVDC is used for transmissions for both short and long distances. One of Power Systems?s products is called HVDC Light. HVDC Light is a relatively new technology for power transmission, but have before only been used for motor drives applications.

The purpose of this project was to study how the interference between two antennas in a MIMO system affects the linearity of the power amplifiers powering the antennas. For the MIMO system, two power amplifiers and twoantennas were constructed and designed using the software ADS and a software defined radio was constructed using the platform USRP and the software LabVIEW. The result was that the interference between the antennas affectsthe linearity of the power amplifiers powering the antennas adversely and a reasonable theory was that the interaction decreases inversely proportional tothe square of the distance..

Titel: Är du taggad? Lönsamhetsbedömning vid ett införande av RFID.Bakgrund: I dagens läge måste företag vidta olika åtgärder för att vara konkurrenskraftiga på marknaden, företag måste därför hålla nere kostnadsnivån och öka effektiviteten i verksamheten. Genom ID-märkning av produkter kan varuflöden förenklas, och tekniken gör det även möjligt att snabbt hitta information om en specifik vara. Ett system som förväntas få allt större utbredning i framtiden är RFID, som står för Radio Frekvens Identifiering. RFID-systemet skiljer sig ifrån streckkodsystemet och övriga identifieringssystem.Syfte: Uppsatsens syfte är att granska de effekter och möjligheter som RFID medför för företag, vilka har implementerat tekniken.

Hela mediebranschen är idag inne i ständigt pågående förändringsprocess. Alla medieorganisationer, såväl på global nivå som på lokal nivå, påverkas på ett eller annat sätt och måste ta ställning till hur de ska agera i förändringarna. Att utforma hållbara strategier för något som är i ständig förändring är dock inte helt okomplicerat.     I den här studien har fyra värmländska medieorganisationers förhållningssätt till strategier i förändringsprocesser undersökts. Två av dem, Nya Wermlands-Tidningen och TV4 Värmland, är kommersiellt drivna, medan två av dem verkar för public service, nämligen Sveriges Televisions Värmlandsnytt och Sveriges Radio Värmland. Dessa organisationer har valts ut för att det kan vara intressant att se hur det ser ut på lokal nivå, samt om synen på strategier i förändring skiljer sig åt beroende på om de verkar kommersiellt eller inte.     För att besvara syftet med studien har två delstudier genomförts, dels en kvalitativ samtalsintervju, där en person i ledningen på respektive medieorganisation har intervjuats och dels en mindre kvalitativ innehållsanalys.

ITT Flygt is a world leading company that mainly manufactures submersible pumps. A problem of ITT Flygt is that product development projects rarely manage to hold the estimated project time. It shows that something unexpected occurs in projects quite often, which results in delays. The delays can both be due to an optimistic time plan of projects and risks in product development projects which are not discovered at an early stage. This added with unforeseen delays makes it difficult for ITT Flygt to estimate the duration of their projects.The goal with the Master thesis is to examine a suitable method for simulation of project time.

Vi har undersökt hur Sveriges Radios nyhetsprogram Ekot och Svenska Dagbladet resonerar kring sin egen roll i en alltmer sensationalistisk och hårdför kriminaljournalistik. Vi har genomfört en kvalitativ intervjuundersökning där vi intervjuat Staffan Sillén, ansvarig utgivare på Ekot, samt Mats-Erik Nilsson, redaktionschef och ställföreträdande ansvarig utgivare på Svenska Dagbladet. I intervjuerna har vi tagit utgångspunkt i hur de båda medierna valde att rapportera om den så kallade Hagamannen, som den 19 juli dömdes till 14 års fängelse för ett flertal våldtäkter och mordförsök. Vidare har vi ställt allmänna frågor om hur man resonerar kring namnpublicering av brottslingar och sitt eget och andra mediers ansvar och roll vad gäller kriminalrapporteringen och konsekvenserna av den snedvridna bild som forskningen pekar på att medierna presenterar.I vår uppsats har vi haft Ester Pollacks kontextuella konstruktivism som teoretisk utgångspunkt. Vi har även använt oss av Ester Pollacks kultiveringsteori i analyserna av intervjuerna.Vår undersökning visar att Ekot har en mer restriktiv etisk linje där man med hänsyn till brottslingars anhöriga i ytterst få fall väljer att gå ut med namn på brottslingar och brottsmisstänkta.

The thesis has been written as a part of the Bachelor degree in Industrial engineering and management at the School of Engineering in Jönköping. The work is focused on the part of Husqvarna AB?s supply chain that is associated with the lorry transports to Italy. Husqvarna AB has approximately ten Italian customers, whose delivery patterns have been studied from January 2007 to July 2008. Some of the customers have a low delivery frequency and small amounts of goods that they therefore have not been fully analyzed in this report.

Linux is a growing operating system in embedded systems. Today, Linux is not only in heavy servers but also in cell phones, PDAs, cameras and other devices running on battery power. While current technology is more energy efficient, more and more technologies are implemented into a single unit resulting in an overall increase of power consumption.Low power consumption is an increasingly important feature of a system today. Lower power consumption means lower costs, less environmental impact, and longer life for applications that runs on batteries.This work compiles methods to reduce power consumption of Linux systems. The work includes examining whether the available opportunities are platform-specific or of a more general nature.

Titel:?Två sidor för Angered och en liten spalt? En kvalitativ studie om ungdomars förhållningssätt till medier på uppdrag av Sveriges Radio.Författare:Cecilia Pettersson, Maria Skoglund och Linn WargKurs:Examensarbete i medie- och kommunikationsvetenskap vid institutionen för journalistik, medier och kommunikation, Göteborgs universitet.Termin:Höstterminen 2010Handledare:Ingela WadbringUppdragsgivare:Sveriges Radio Stockholm. Kontaktperson: Ingrid Östlund, Chef Publik & Omvärld.Sidantal och ord:62 sidor, exklusive bilagor. Totalt 19031 ordSyfte:Syftet är att studera individuella och strukturella faktorers betydelse för ungas förhållningssätt till medier.Metod och material:En kvalitativ metod i form av fyra fokusgruppsintervjuer med totalt 18 ungdomar.Huvudresultat:Studien visar att både strukturella och individuella faktorer har betydelse för ungas förhållningssätt till medier. Det finns dock en likvärdig tillgång till medier oavsett social klass.

This is a dissertation for a Bachelor Degree Project at the University of Skövde. The project is carried out in cooperation with the company Kinnarps AB.The objective of this project was to develop a new chair for café and lunch rooms, which should satisfy the markets expectations and demands and match Kinnarps AB?s assortment today. The project has contained everything from identification of user and customer needs and requirements to evaluation and building of a prototype.The result is a chair with a frame of tubular steel and there is nothing like it in Kinnarps AB?s assortment today.

The animal welfare act in Sweden states that dairy cows need to have at least a dim light present at night, but there are no recommendations for what intensity the light should have. It is unknown how cows perceive and react to low light intensities and earlier studies on this topic are limited. Red light as night light has also been suggested, based on the cows? inability to perceive red light. This have however been questioned. The aim with this study was to investigate how four different light intensities affect dairy cows behavior.

The usage time is an important part of the specification for products powered bybatteries. The usage time is affected by a number of different elements; technical,environmental and how the product is being used. The method to determine theusage time is intended to define how measurements and calculations are to berealized along with influencing factors to keep in mind. With support from thismethod the intention is to gain control on how well the established usage time canbe expected to cohere with the real value and what affects the value.The study is done specifically for hearing protectors with battery powered built inelectronically functions. The functions can be level dependent function forambient hearing, 2-way radio communication, Bluetooth or FM-radio.The first chapter of the report describes the literature study performed in theproject.

Introduction: Domestic violence is a big public health problem and the hiddennumbers over victims are big. There is a lack of scientific research in the Nordiccountries when it comes to how the health- and medical care identify and care for thevictims of domestic violence. Aim: This literature review has two aims: To investigatewhat kind of methods maternal health services, child health services and gynecologyclinics in the Nordic countries use to discover women and children exposed to domesticviolence and to investigate if there are any guidelines to go by when a victim ofdomestic violence is identified. Method: A literature review. 12 articles were found inPubMed, Scopus and Cinahl and three more were included after a manual search.