Digitizing objects and environments from real world has become an important part of creating realistic computer graphics. Through the use of structured lighting and laser time-of-flight measurements the capturing of geometric models is now a common process. The result are visualizations where viewers gain new possibilities for both visual and intellectual experiences. This thesis presents the reconstruction of the Parthenon temple and its environment in Athens, Greece by using a 3D laser-scanning technique. In order to reconstruct a realistic model using 3D scanning techniques there are various phases in which the acquired datasets have to be processed.

In this thesis we compare how different strategies in choosing attribute values affects junk mail filtering. We used two different variants of a naïve Bayesian junk mail filter. The first variant classified an e-mail by comparing it to a feature vector containing all attribute values that were found in junk mails in the part of the e-mail collection we used for training the filter. The second variant compared an e-mail to a feature vector that consisted of the attributes that was found in ten or more junk mails in the part of the e-mail collection we used for training the filter. We used an e-mail collection that consisted of 300 e-mails, 210 of these were junk mails and 90 were legitimate e-mails.

At Saab Aerospace in Linköping, components for measurement systems to the fighter aircraft JAS 39 Gripen are developed. In this activity you sometimes want to record the traffic transmitted on the data busses that connects different sys-tems. This traffic on the data busses is using the military standard MIL-STD-1553. This project has aimed to create a system for recording and sending 1553-data. The system is used on an ordinary personal computer, equipped with a recon- figurable I/O card that among others has a programmable logic circuit (FPGA).

C3LOOPS is an application for DJs and VJs based on surface interaction. A system is said to be based on surface interaction if it presents content on a two dimensional, endless surface that a user navigates through zoom, pan and incremental text filtering where processing is tightly coupled with the content without breaking the workflow. C3LOOPS is designed to encourage improvisation and collaboration. During improvisation changes occur rapidly. Allowing navigation through time as well as the two spatial dimensions of an interaction surface the possibility of unlimited undo operations opens up.

Saab Bofors Dynamics har som huvudsaklig verksamhet att utveckla missiler. Ofta krävs det att någon form av navigationsfunktion byggs in, och eftersom det inte är lätt att testa nya lösningar och algoritmer direkt på missilerna har man tagit fram två autonoma testplattformar, Freke och Gorm, i form av självgående bilar som kan ta sig fram inomhus i t.ex. en korridor.För navigation utomhus lämpar sig GPS väl i många situationer, men i autonoma sammanhang är det inte tillräckligt. GPS är inte alltid tillgänglig på grund av att man inte alltid har fri sikt till minst fyra satelliter och i militära sammanhang är den också lätt att störa ut. Därför förlitar man sig hellre på noggranna tröghetsnavigeringssystem (TNS) som kan ge data i 100-tals Hz, och kompletterar med GPS för att korrigera för avvikelser.

In this bachelor thesis a complete prototype of an industrial vibration measurement platform has been developed. By measuring a number of variables such as acceleration, temperature and speed conclusions can be drawn on machinery health. The aim is to evaluate hardware and software solutions for a possible future product. Based on a requirement specification a proper hardware design has be developed. The hardware consists of a four-layer PCB with an ARM Cortex-M3 microcontroller and about 250 other components. The PCB was designed, assembled, tested and finally housed in a box.

A cars powertrain consists of everything that is needed for its propulsion. The components in the driveline that transfer the power from the engine to the driven wheels are not absolutely stiff, hence they will wind up due to the torque and act as torsion springs. If you suddenly demand a bigger torque by stepping on the accelerator pedal, a so called tip in manoeuvre, and that torque is acquired from the engine as quickly as possible, the driveline will not be able to transfer that fast torque change due to its weakness and as a result it will start to oscillate. These oscillations will be transferred to the driven wheels and make the car to accelerate jerkily which will be experienced as uncomfortable by the passengers. Furthermore, there is a backlash in the driveline that will make the weakness in the driveline even more excited than it should have been if the backlash did not existed.To avoid too big problems with these oscillations there is a control system that controls the demanded torque.

Teknik och data a?r nyckeln till att Bonnier Business Media (BBM) ska kunna na? sina ma?l och leverera ytterligare tillva?xt. Da?rfo?r vill man ligga i framkant na?r det ga?ller att underso?ka nya tekniker som kan fo?rba?ttra plattformarna och go?ra dem mer tidsenliga. BBM har bland annat velat ta fram ett rekommendationssystem som ska anva?ndas till att go?ra inneha?llet individanpassat pa? webbplatserna och pa? ett effektivt sa?tt presentera detta sa? att de olika ma?lgrupperna fa?r den information de fo?rva?ntar sig.

The purpose of this thesis is to show students? information behaviour in everyday life and towards the Student Union of Borås. Methods of active information seeking and more random information encountering as well as information ignorance are of interest. The study focused on three issues; the first was to examine what information behaviour the students presented while acquiring information in their everyday life. The second was to find out what information behaviour the students had to acquire information from the Student Union of Borås.

Since their invention in 1999, CubeSats have become a widespread standard for small picosatellite missions. CubeSats allow for quick development of satellite payloads and launch in space without the high costs of a normal satellite. Emphasis during the CubeSat design process is placed on use of commercialoff- the-shelf (COTS) components and reuse of previously-designed units.This report describes the interfacing of a scientific magnetometer, the Small Magnetometer in Low-Mass Experiment (SMILE) to such a CubeSat mission, the Space Weather using Ion spectrometers and Magnetometers (SWIM). Design of a complete platform for use in multiple such missions is presented here.Modularity is one of the key aspects followed in the course of the work. A new board containing the analog pick-up and compensation circuitry for SMILE has been designed to fit inside a CubeSat frame.

Gunsta is situated about 10 km east of Uppsala. Today there are plans to establish 1000 new households in Gunsta before year 2030. The required energy for heating houses and water would be distributed via a district heating system, which also includes 200 existing residences. The annual required energy, according to this study, would be 16.2 GWh with a maximal peak effect of 6.9 MW. To meet this need, the study suggests a system with heat pumps to upgrade the 31?C water from a 1.8 kilometre deep borehole.

Efterfrågan och tillhandahållandet av platsberoende tjänster blir allt större vilket i sin tur skapar intresse för billiga och skalbara tekniker i alla möjliga olika miljöer. Särskilt intressant blir tekniker som är lätta att installera på nya platser och vars hårdvarukomponenter är enkla och billiga. I denna rapport presenteras en experimentiell systemteknisk metod för positionsberäkning i inomhusmiljöer, specifikt de som på grund av lokala elektromagnetiska fält, rörliga större föremål eller oregelbundna ytor skapar störningar som gör det svårt att utföra förlitlig positionering. Systemet utgörs av ett antal wifi-routrar samt en signalmottagre kopplad till en dator med systemets mjukvarukomponent installerad. Resultatet bedömdes utifrån en förväntad nivå av korrekthet, närmare bestämt att minst hälften av systemets bedömningar inte har fel med mer än två meter, samt en övre gräns på högst tre meters fel i minst 90 procent av fallen.

Wikileaks is using the new technical solutions to mount big leaks, consisting of secret or sensitive information from the government, institutions and business. This might profoundly change the media reality and it certainly means both new opportunities and new challenges for traditional media; the conditions for the journalists, the sources and the news reporting are changing. In this thesis the relationship between Swedish journalists and Wikileaks has been the focus; they both affect each other but the conditions for this relationship is not yet clear. Clearly there is an interdependence, but who really is dependent on the other and to which degree they are dependent on each other is still a question without a given answer.The aim of this thesis has been to discern a new journalism, and how this responds to the theories of Public Journalism and Journalistik 3.0. The main aim has been to examine what Swedish journalist thinks about Wikileaks, what their attitude towards Wikileaks are,  if and how they think that Wikileaks have affected the Swedish journalism.

The writing style of a particular author can be divided into many subfeatures, for example use of words, language and syntax. Focusing on the latter, this study aims to show how well syntactic information alone can attribute the correct author to a document. Syntactic information is defined as overlapping syntactic subtrees of height one (1) for all sentences of all included documents. The performance is compared to that of the previously very successful method of comparing stop word frequencies. These are words normally excluded from search engine queries, because they are present in all sorts of texts regardless of topic.

Denna uppsats behandlar ämnet internkommunikation. Vi har valt att genomföra en undersökning om Polismyndigheten Värmlands internkommunikation då de innehar ett stort ansvar att bevara trygghet och säkerhet i samhället. Polismyndigheten har även stora krav på sig idag gällande dialog och grad av kommunikation inom organisationen för att effektivisera det polisiära arbetet. Syftet med denna uppsats är att erhålla en insikt om den interna kommunikationens funktion och hur den gestaltas utifrån chefernas och de anställdas perspektiv. I denna uppsats använder vi oss utav relevanta teorier inom organisationskommunikation, internkommunikation, organisationsidentitet, organisationskultur och kommunikationsmodeller.