Nowadays, a lot of resources are spent on developing systems that will make it possible forvehicles to act autonomously, and make them more effective. One of the projects that isworking on this is the Gulliver Project. Gulliver has constructed a number of miniaturevehicles equipped with various sensors, to use as a physical testbed for autonomousdriving. One big disadvantage with this method is the long iteration time that occursduring the development and testing of a new software.This project has improved this process by developing a system architecture of a virtualtestbed where it is possible to simulate autonomus vehicles that communicates throughany type of wireless network. The testbed has made it possible to simulate autonomusvehicle systems that with a reasonable margin of error, acts like the system would actin a physical test.

Rapporten beskriver funktionen och implementationen av ett mjukvarusystem utformat för att hämta och presentera data från Internetanslutna sensorer. Idén bygger på ett koncept av Jerry Lindblom vid EISLAB på Luleå tekniska universitet. Utvecklandet har skett i nära samarbete med Gema Industri AB med målet att möjliggöra användning av systemet för övervakning av elmotorer och remdrifter i industrier, men detta är bara ett av de möjliga användningsområdena. Systemet gör det möjligt för användare att skapa webbsidor som kan innehålla dynamiskt skapade grafer utifrån mätdata som tidigare insamlats från sensorer. Tillvägagångssättet är användbart i en mängd olika tillämpningar.

In this thesis a method for evaluating investments in small scale hydro power is presented. An analysis of the future position that small scale hydro production will have on the Nordic electricity market is also carried out. This is done by an inventory of technology and economic and environmental aspects. The inventory is also a guide as to how the project should be implemented.Hydrolyzer is the name of the Excel tool developed to evaluate investments. The tool requests input data from the user and then evaluates the investment and generates a sensitivity analysis.

The maintenance phase within software projects is typically very expensive in terms of resources. The activities of this phase are largely focused around some form of modification of program code. This leads one to consider if there are alternative methods of code production that results in code that allows for less costly modifications. This thesis has its basis in a subset of those concepts which research has shown to provide more flexible code. Once this subset is established, connections are made between the concepts within the subset and claims of benefits provided by the use of Test Driven Development (TDD) methodology.

Detta projekt har producerats i samarbete med Abu Garcia i Svängsta, Blekinge. Vårat projekt är en interaktiv produkt presentation gjord i flash med inslag av 3d, video och ljud. Våran tanke är att användaren ska kunna se hur en Ambassadeur Record fiskerulle ser ut både på insidan och utsidan, hur den fungerar och vad som gör den så unik. Det finns också video filmer som beskriver tillverknings processen, och hur man som förstagångs användare använder en Ambassadeur rulle. Design och bakgrundsljud är anpassad så att den ska väcka en känsla av fiske och fridfull utomhus miljö..

New technology makes it possible to remotely measure all consumers in a power network onan hourly basis and store the values in a database.This thesis work describes the conversion process between automatic meter reading systemMActor and calculation software Xpower.Then the possible differences between calculations of power networks using load curves incombination with a yearly estimate of consumption and calculations using hourly measuredvalues is examined.The result of the comparison shows that, for the power network under inspection, nosignificant difference could be noticed. This does not mean that calculations using hourlymeasured values would be unnecessary. I believe that in a near future calculations using hourmeasurements will be the primary choice for many power companies to whom technology isavailable.Also some basic calculations of fundamental power network parameters, such as power factorand loses, are presented using hourly measured distribution transformers in combinations withits hourly measured loads.The report is written in Swedish.

This study has been conducted in order to determine the existence of predictability for the Stockholm stock exchange. With this purpose the random walk theory has been raised against the theory of mean reversion in order to determine which theory is the most substantial. Data has been collected from Nasdaq OMX Nordic and furtherly been processed using the statistical software EViews. Swedish listed companies? daily share values between 2000-2014 have been analyzed using two tests; an Augmented Dickey Fuller test and a Variance Ratio test.

Systemutveckling har på senare år rört sig mot allt mer flexibla metoder för att bedriva utveckling, ett agilt förhållningssätt vid systemutveckling i dagens IT-bolag är inte alls ovanligt. I takt med förändring av tillvägagångssättet har även ett moment inom testningen fått allt mer fokus: Testautomatisering. Vissa författare hävdar till och med att det inte går att bedriva agil systemutveckling utan att införa testautomatisering. Syftet med uppsatsen är därför att undersöka vilka utmaningar en testare inom de agila metoderna stöter på vid testautomatisering. Detta utförs med hjälp av intervjuer på fem olika företag av fem olika testare där de alla har en gemensam nämnare, att de jobbar agilt..

To save energy it?s popular to build houses with low energy loss. In these houses the walls are keeping a lower temperature in the external side which leads to a higher relative humidity. In addition more material, such as wood studs, are used which means that there is more moisture to dry. More moisture in combination with higher relative humidity may pose a higher risk of microbial growth.

Making the work in the public sector more efficient is something that has been seen as necessary during the later years. One way to do this on municipal level has been to apply solutions former used mostly by private companies. The organisational parts have also been adjusted to existing conditions in this work of change. For example more and more municipalities have come to use the purchaser-supplier model since the beginning of the 1990's. Norrköping, Linköping and Motala have been chosen in this essay for a closer study of the effects of the changes of the 90's, from an efficiency point of view.

The aim of the study was to distinguish if there was a difference between how work is perceived and how unemployed are viewed by people in collectivistic and individualistic cultures. A phenomenological approach was used in order to capture the participants life-worlds and their meaning constitution of a phenomenon, in this case the meaning of work and how unemployed are viewed. Subjects from different parts of the world, belonging to either a collectivistic or individualistic culture, participated in this study. Data was collected by self-reports which were analyzed by the method of MCA (Meaning Constitution Analysis) and the software Minerva. The results indicated that there were differences in how individuals from collectivistic cultures compared to individuals from individualistic cultures reflected about the meaning of work.

Den här rapporten är ett resultat av ett kandidatarbete på 20-poäng. Projektet som rapporten handlar om, beskriver hur utvecklingen av ett webbutikssystem åt ett flertal företag gått till. De har i sin tur köpt webbsystemet från företaget Opti Use som givit oss uppgiften. I rapporten diskuteras hur utvecklingsprocessen gått till och hur ett arbete med ett befintligt system upplevts. Rapporten beskriver även hur lösningen på uppgiften har tagit form och hur utvecklingsprocessen påverkat den.

The purpose of this study was to investigate the possibility of streamlining the test process by utilizing pair programming. During the process, pair programming has been practiced as is defined by the Extreme programming (XP) software development methodology, with the other aspects of XP discarded. The focus of the testing itself has been toward unit testing. The methods applied has been with an experimental approach where 93 cases were attempted to be solved by either single programmers or pair programmers. What has been investigated in these experiments was the time needed to complete a case, how many test attempts were needed to solve the case, and how high a percentage of the cases were solved.

My intention with this study is to evaluate, as a singer and a voice teacher, a number of routines for daily vocal practice through practical application. Seven different routines are presented, five of them originating from interviews with Swedish vocal teachers and singers and two chosen from literature. These routines are then tried out and evaluated. Using the results of these evaluations as a basis, I make an attempt at formulating my own personal practice routine, optimal for my own needs. I will also try to address motivational issues related to practice with hints acquired through the interviews.

The company Sound Precision has developed a new Line Array loudspeaker system (VHA-40). When using this system, their customers need computer aid to get the best possible sound-quality and control of sound levels for the whole audience. The aim of this thesis is to develop a truly useful sound quality simulator for the VHA-40. The system will help the sound engineers to position the loudspeakers for optimal sound by simulating loudspeaker configurations and visualizing the resulting sound quality and quantity. To solve this a human-centered design (HCD) approach is taken to implement a system that is truly useful for the users, meaning that they will use it more and hence deliver better sound for the audience.