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.

It is more common now to purchase products and services on the Internet. More and more companies choose to sell their services and products this way. Some services and products the customers can get delivered directly to their computers. Therefore, it is important for entrepreneurs to know when they risk a permanent establishment in another country due to their Internet based activity. If the company gets a permanent establishment in the other country, the other country can tax the income which is relatable to the company?s permanent establishment.

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..

Dagens ungdomar har tillgång till fler forum för umgänge än tidigare generationer. Ett av dem är självfallet internet, som har funktionen av en gigantisk mötesplats för mängder av ungdomar varje dag. Tidigare var umgänget huvudsakligen begränsat till möten i verkliga livet och således även de problem som kan uppkomma i mänskliga relationer, till exempel fenomen som mobbning. Nu ger internet en möjlighet till ökat socialt umgänge för många av ungdomarna. Dock rymmer nätets fördelar även nackdelarna, och som titeln antyder en risk för dubbel utsatthet.

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.

Purpose:  The purpose of this paper is that from the physical travel agencies perspective try to see how they perceive their future, knowing that the booking on Internet has increased.Problem: What are the prospects for future development of the physical travel agency? Has the technological development affected the physical travel agency and forced it to change its role and meaning?Method: This paper has a qualitative approach. Interviews have been made with employees on physical travel agencies to try to reach a deeper understanding and thereafter be able to give us an understanding of our problem.Conclusion: The physical travel agency has been given a new role as the employees are no longer seen as sellers but more regarded to as consultants. The travel agency has become more of an information bank than just a shop where travels are being sold. Despite this change, we believe that customers will continue to visit the physical travel agents because of the unique knowledge and services they can provide that Internet not yet can offer.

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.

Problem: Majoriteten av producenterna till musikverk och flertalet av de aktörerna som aktivt är med i debatten om piratkopiering anser att piratkopiering av musik är skadlig samt ett problem för musikindustrin. Kommer deras olika metoder att vara en lösning på problemet eller kommer man åtminstone kunna begränsa denna olagliga aktion? För att mestadels alla ska vara nöjda, finns det möjligtvis en lösning som kan gynna både de som är för piratkopiering och de som är emot piratkopiering? Syfte: Syftet med denna rapport är att belysa problemet med piratkopiering av upphovsrättsskyddat material på Internet. Vi vill även granska konsumenters och aktörers åsikter angående detta och analysera om det finns någon laglig lösning där båda parter kan känna sig gynnade. Metod: Vi har studerat litteratur och utfört intervjuer som sedan har granskats och analyserats. Vi har även letat ny och uppdaterad information på Internet. Resultat: Vi har i vår undersökning kommit fram till att piratkopiering aldrig kommer att kunna stoppas helt.

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.

ABSTRACT The persons whom the authorized nurse encounters in hospital wards and nursing homes are in great extent elderly persons. According to Wasserman (2000), about 30 to 40 percent among these, show signs of depression. To be aware of the signs of depression, and how an authorized nurse can support the patient is therefore of great value. The introduction to this study describes the symptoms of depression and how depression in elders is expressed. It also describes treatment possibilities and nursing aspects of concern.

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.

This master thesis investigates the possibilities of using GPS-information from trains to create a model of a railway system, register the routes of the the trains and predict how the trains will travel in the railway system.The thesis work was done at Icomera AB which is a company that specializes in internet connected vehicle solutions.We describe how the GPS-information is sent from the trains in the form of samples and investigate limitations and possibilities with the available information. About three million samples from 83 SJ-trains were analysed and the samples were filtered with the intent of removing erroneous information. We here found that about 30 % of the samples from the trains were unreliable.A solution for how the samples from the trains can be used to create a model of the railway system traveled by the trains is presented. We use a large set of historical samples and use cluster nodes and Hermite curves to generate a graph that represent the railway system with stations, nodes and the railway itself. A fully automatic solution is not presented since it did not fit into the time frame of the thesis; instead we created a simple tool which can be used to manually finish the model of the railway system.Furthermore, we describe how the railway system and the samples from the train can be used to register the routes the trains travel.

Strategic development is something that concerns all companies, regardless of which industry they?re in. There is extensive research on this topic but one can question if the same theory also applies to E-businesses. Using case studies, this paper looks at strategic development in E-businesses and tries to answer whether strategic development in internet based companies is unique or if existing theory can still be applied. The predominant approach is to look into if E-businesses, due to a turbulent environment, rely less on market research and focus more on internal resources than would be expected by companies in more stable environments.

Internets framfart har skapat ändrade förhållande på marknaden för kommunikation och marknadsföring. Företag marknadsför sig alltmer på Internet och e-handeln har samtidigt ökat kraftigt. Debatten kring nya sätt att marknadsföra sig på Internet och hur konsumenterna reagerar på information är i full gång. I en undersökning gjord av Posten visar det sig att 7 av 10 svenskar gör sina distanshandelsköp på Internet och att de har en sofistikerad informationssökningsprocess. Påståendet görs att konsumenter litar mer på vänner, bekanta och andra konsumenter på ?nätet? .

This thesis investigates if a system for small scale electricity production located in anurban environment can be profitable. The work has been divided up into two parts,one extensive literature study and one case study. The purpose of the literature studywas to investigate the area, resulting in a choice of which technology to be studied indepth in a case study.In the case study a system containing small scale wind turbines and photovoltaicsmounted on Gränby Centrums roof was examined. From data containing wind power,wind direction and total irradiation, possible production from a system weresimulated. Three products of each technology were examined in the simulations.From the simulated production an economic analysis was carried out, this toinvestigate if a system is profitable.