The project was performed at SiemensIndustry Drive Technologies with theobjective to provide actual values forthe energy savings potential withinSiemens scope of practice.In Sweden the electrical drives standfor about 30 % of the total electricityconsumption and about 60 % of theelectricity consumption within theindustry. During the pre-study phaseelectrical drives with pump applicationswere identified as large energy users.Because of this a case study at one ofSiemens customers, Stora Enso Fors wasperformed. The system that was evaluatedduring the case study was a throttledsystem with a centrifugal pump forpumping pulp.The results yielded that a saving ofover 50 % could be achieved by replacingthe throttle valve with a variable speeddrive, a frequency converter. Thepayback period was two years and twomonths and the present value for thetotal life cycle cost of the variablespeed system was 662.566 SEK lower thanfor the throttled system. As aconsequence, Stora Enso Fors is advisedto invest in a frequency converter forregulation of the system.The general conclusion is that a focuson system efficiency is the mostimportant factor in energy efficiencyprojects and that the system regulationmethod has a large impact on the overallsystem losses and hence its efficiency.Energy efficiency potential forthrottled systems with centrifugal pumpsis large and significant economicalsavings can be made through investmentswith short payback time..

Denna studie har som syfte att underso?ka om det finns en typ av system vars egenskaper liknar ba?de traditionella system och e-infrastrukturer utan att tillho?ra na?gon av dessa typer samt hur en designmodell skulle se ut fo?r denna typ av system. Detta system kallar vi gra?nsfallssystem.Fo?r att underso?ka om denna finns har traditionella system och e-infrastrukturer samt hur man utvecklar dessa typer av system analyserats. Detta fo?r att se ifall det existerar na?gon form av system som har egenskaper fra?n ba?da dessa ytterligheter och om det existerar sa?dana system hur man pa? ba?sta sa?tt ska utveckla dem.

The gambling industry goes from a national matter towards an international market. Since more and more members of EU does liberalise the gambling reforms and introduces a license system more participants will get an EU license for online gambling. With an EU license it is difficult for members of the EU to refuse a company to offer a gambling supply on the Internet if they don?t have an open license system. This paper tries to acknowledge the problem regarding the monopoly Sweden has today and calculate the effect if Sweden would move to a license system regarding online gambling by doing a cost benefit analysis.

The aim of this report was to do a case study at a geothermal heating system which has been in operation for about 5 years, and study if its performance has changed during this period of time. A literature study about the processes involved was also done in purpose of background knowledge.The tenant-owner?s association Duvan at Petterslundsgatan in Uppsala installed year 1999-2000 a geothermal heating system. The purpose of this installation was that they hoped it would lead to a smaller usage of district heating which would lead to a reduction of the heating expenses for their buildings. The geothermal heating system consists of 19 energy wells and 4 geothermal heat pumps, and it is one of the first systems of that size in the region of Uppsala.

There are some key elements which distinguish a general operating system, such as Linux, from a Real Time operating system, such as OSE. The later belongs to the category of soft Real Time systems while Linux is a general operating system, with significantly improved real time properties after version 2.6. These improvements make it interesting to compare the two systems.When comparing two operating systems, there are a number of issues which have to be considered. One way to measure the performance of the systems is by studying the time consumption for the same functionality and hardware.During the study, the items that appeared as the most important for the performance of the systems, were: process primitives, system primitives, interprocess communication, context switches and interrupt latency.This work demonstrates that it is possible and reasonable to do performance testing on two different operating systems. The implemented tests cover a number of basic functionalities, which appeared to be the most crucial ones for the performance of the systems..

This report documents the development of a software system for automaticscheduling called Hazel. This system is comprised of a server where an automaticscheduler has been implemented, as well as a web and mobile applicationthat allows users to interact with the system. The scheduler hasbeen developed with the functional programming language Haskell and usesa SAT-solver.Manual scheduling has long been the bane of managers everywhere, asmatching the needs of the employer with those of the employee is often adifficult and time-consuming task. There already exists several automaticschedulers that attempt to solve this problem. The issue with said schedulersis that thay tend to be expensive, or developed to only fulfill the needsof a particular organisation.

Denna kvalitativa studie handlar om förskolans gård som pedagogisk miljö. Syftet med studien var att undersöka förskollärares syn på förskolans gård som pedagogisk miljö samt hur de anser sig använda den i praktiken. Det genomfördes nio intervjuer med yrkesverksamma förskollärare på olika förskolor. Det ställdes inga krav på att de skulle ha specifik erfarenhet av verksamhet på förskolans gård eftersom vi ville få en allmän bild av hur förskollärarna ser på gården som pedagogisk miljö. Resultatet visar att gården används i planerad pedagogisk verksamhet och aktiviteter som förekom var temaarbete, samlingar och fri lek.

Electrolux Laundry Systems is the world leader in manufacturing professional laundry equipment.The machines are used in the hotel sector, elderly care, in multifamily houses, laundry bars, and incommercial and institutional laundries.If there is oil or grease left in the clothes after washing may the heat from the dryer cause a chemicalreaction. This reaction may, under certain circumstances cause a fire inside the drum. Competitors toElectrolux has developed its own systems that extinguishes fire inside a tumble dryer and customershave expressed desire to purchase a fire-extinguishing system. Therefore, the project team receivedthe task by Electrolux to develop a fire-extinguishing system that extinguishes a fire in a tumbledryer.The purpose of the project has been to develop a system that both detects and responds to fire in anindustrial tumble dryer to meet the competitors and to satisfy customers' requirements.The goal was to develop a fire-extinguishing system for Electrolux Laundry Systems and develop afully functioning prototype.The project began with information searches on a variety of methods to both detect and extinguish afire. Subsequently, a number of different methods were used to develop a final solution and make aprototype.The result of the project is a fire-extinguishing system that extinguishes a fire inside a dryer.

?Pensionsvägledning? är ingen nationellt förekommande verksamhet. Tidigare forskning visar att förberedelser inför pensioneringen ökar både individens livslängd och underlättar omställningen. Syftet med studien är att undersöka om nyblivna ålderspensionärer har ett behov av vägledning i skapandet av ett meningsfullt pensionärsliv. I studien undersöktes med intervjuer av fyra nyblivna ålderspensionärer deras nuvarande levnadssituation, anpassningen till pensionärslivet och synen på livslångt lärande.

The report aims to investigate how well a certain type of affordable embedded single board computer can hold up against today's more expensive computers in a computer system by doing various tests on a system with the specified requirements. The system has a Raspberry Pi as the single board computer which task is to control a camera based on coordinates obtained from a server as well as capture and stream a video signal on a network.The researches were conducted to check how much network traffic a single-chip computer sent in different video formats and how much CPU utilization was required. Studies were also made to ensure the accuracy of the camera control. The researches have been experimental, where several tests have been performed and analyzed.The results show that a sufficiently good accuracy can be obtained from the camera steering unit, in which two different servos have been investigated. When the video format MJPEG and H.264 are used, the single-chip computer is able to transmit a video signal up to 1280x720 at 15 fps.

Citizens? freedom of choice has been a subject of debate in Sweden for over 30 years. This study focuses on decision making processes among patients within the Swedish healthcare system. The main conclusions are that in contrast to how patients? freedom of choice is described within governmental bills and governmental inquires and reports, patients are not following the steps included in the rational model of decision making.

I Sverige lever cirka 20 000 stomiopererade personer och varje år tillkommer ett tusental nya patienter. Ordet stomi kommer från det grekiska ordet ?stoma? som betyder mun eller öppning. Inom medicinsk terminologi används ordet för en operativ anlagd förbindelse mellan mag- och tarmkanalen ut genom buken. Det innebär ett stort ingrepp i en människas liv att genomgå en stomioperation och få en colostomi.

This report describes a system for verification of fingerprints against a previous created template. It describes how and why a fingerprint image must be processed before it can be used to either identify or verify a person. The method is based on special features of a fingerprint, called minutiae points. The whole process from image to matching is described, every step in the process with image enhancement, binarization, thinning and how to find the minutiae points. Also what false minutiae points are, how they arise, why they deteriorate the result, and how to handle them, is discussed.

Denna kvalitativa studie handlar om förskolans gård som pedagogisk miljö. Syftet med studien var att undersöka förskollärares syn på förskolans gård som pedagogisk miljö samt hur de anser sig använda den i praktiken. Det genomfördes nio intervjuer med yrkesverksamma förskollärare på olika förskolor. Det ställdes inga krav på att de skulle ha specifik erfarenhet av verksamhet på förskolans gård eftersom vi ville få en allmän bild av hur förskollärarna ser på gården som pedagogisk miljö. Resultatet visar att gården används i planerad pedagogisk verksamhet och aktiviteter som förekom var temaarbete, samlingar och fri lek.

Syftet med denna studie är att undersöka hur familjebehandlare upplever det att arbeta med FFT-metoden samt de faktorerna som gör den funktionell. Eftersom FFT är anpassad till den amerikanska kulturen som skiljer sig ganska mycket från den svenska, båda i kultur och socialsystem är det viktigt att inte bara utvärdera utifrån modellen men också hur implementering och anpassning av modellen har gått. För att kunna besvara syftet och frågeställningar har fem kvalitativa intervjuer genomförts av semistrukturerad karaktär. Urvalet av respondenter gjordes utifrån snöbollsmetoden där de intervjuade arbetar inom socialtjänstens öppenvård. Resultaten visade att det finns många saker som ska tas hänsyn till vid anpassning till andra kulturer, bland annat utbildningar, målgrupper och ekonomi. FFT är en behandlingsmetod och en påbyggnadsutbildning där gränsen mellan det som är klientens behandling och det som är FFT-terapeuternas utbildning är diffus.