This thesis is performed at Saab Bofors Dynamics in Karlskoga and investigates a technique for ranging with laser pulses. The investigated technique is called Constant Fraction Detection (CFD). Described briefly, the received laser pulse is split into two equal parts, where one part is delayed half the pulse width and inverted. This signal is added to the original pulse. The resulting curve has the shape of a laying S and the detection of the zero level is used to stop the time measurement.

This master thesis investigates quality procedures and measuring of solid carbide end mills, with the main focus on measuring equipment. The thesis has been written in collaboration with a special production department for solid carbide end mills at Sandvik Coromant in Gimo. The department?s needs and constraints have been the foundation of the project and the main research question is: how to measure end mills in order to ensure good quality of the produced end mills. The project has contained both a theoretical study consisting of a literature review and practical studies in the workshop with the objective to identify an end mill?s main parameters and the relationship between an end mill?s geometry and the manufacturing processes.

Today there are many applications of digital terrain models (DTM) and the requirements of low uncertainty increases. Most of the DTM are produced with Global Navigation Satellite System (GNSS), terrestrial laser scanning (TLS), airborne laser scanning (ALS) and total stations. Guidelines for the preparation and verification of DTM are found in Swedish Standards Institute ? Technical Specifications (SIS-TS) 21144:2007 and SIS-TS 21145:2007. These were defined in collaboration between Swedish National Rail Administration, Banverket, and Swedish Road Administration, Vägverket, to satisfy the needs of requirement formulations in the production of DTM planning, design and construction. The purpose of this paper is to produce and control DTM over Åkermans kulle, located west of the University of Gävle, according to SIS TS 21144:2007 using GNSS with network-RTK, TLS and ALS.

Orientering är en sport som går ut på att besöka ett antal förutbestämda kontrollpunkter med hjälp av en karta. Orienteringskartan redovisar olika objekt som finns i verkligheten så som stenar, gropar, höjder och branter. Att tillverka en orienteringskarta är dyrt och tidskrävande. Omkring 120 000?150 000 kr och mellan 20?30 h/km2 fältarbete läggs ner på varje karta som skapas.

Bakgrund: Uterustransplantationer utg?r en ny behandlingsmetod som ?nnu inte ?r etablerad inom h?lso- och sjukv?rden. Syftet med ingreppet ?r att ?ka livskvaliteten f?r kvinnor med livmoderfaktorsinfertilitet. Kvinnor som lider av ofrivillig barnl?shet upplever ofta sorg, psykisk stress och nedsatt sj?lvk?nsla relaterat till sin infertilitet.

I detta examensarbete har en studie genomförts av hur väl 3D-skrivning kan tillämpas i Volvo Cars i Skövdes produktion. En litteraturstudie har genomförts för att åskådliggöra de olika 3D-skrivningsteknikerna och deras användningsområde. För att på ett överskådligt sätt jämföra de olika teknikernas duglighet har en bedömningsskala utvecklad av Nasa använts. Denna skala benämns som Technology Readiness Level (TRL). Den teknik som bedöms som mest lämplig med avseende på fullskalig produktion samt prototyptillverkning är Selective laser melting (SLM).För att åskådliggöra fördelar med 3D-skrivare har en förenklad 3D-modell av Volvos cylinderblock I5D modellerats.

Det ha?r a?r en kvalitativ forskningsstudie med en diskurspsykologisk ansats da?r socialkonstruktionismen sta?r som teori. Syftet a?r att underso?ka hur la?rare beskriver att de bemo?ter matematiken i skolan na?r det finns elever i behov av la?s- och skrivsto?d. En diskurspsykologisk analys studerar hur ma?nniskan skapar och fo?rsta?r sin omva?rld genom anva?ndning av sin spra?kliga fo?rma?ga.

A group of two people, Jelena Durkan and Johan von Heideken, have worked together on an assignment from the company August Lundh AB. The company manufactures plastic products for all sizes of catering establishments. The basis for this thesis is a pre-study which shows that many of the users would be more drawn to the plates that the company manufactures, if there was a motif on the plates.This thesis will present the method of application for the motif that best benefits the company, with regard to the requirements placed on the motif, application method and the costs. The group found five relevant methods that were more carefully examined and compared to each other. Those are:Laser engraving, Hot-stamping, Injection molding, In-mould labeling and Pad-printing.The tools that have been used to solve this problem are: Requirement specification, QFD and OEE.

I denna rapport presenteras hur en simulatorlösning för funktionstestning av en gruvmaskin har tagits fram. Arbetet har skett i Atlas Copcos regi och består av tre delar: kartläggning i form av intervjuer, utvärdering av befintliga simulatoralternativ och slutligen val och implementation av lösning. Resultatet visar på en konceptuell prototyp, där en gruvmaskin visualiseras i en 3D-miljö tillsammans med en virtuell gruvgång. Detta möjliggör bland annat testning av autonom navigering, alltså att en gruvmaskin självständigt styr utifrån avläsning av tunnelväggar med hjälp av laser. Samtidigt tillåter lösningen också att kontrollvärden från olika sensorer, såsom vinkelgivare, kan hämtas ut ur simuleringen..

This essay, with the title: Among children, laser swords and lions. ? How do we approach and utilize the cultural experiences of children? is an approach to participate in a scientific discussion in the field of cultural experiences. This text is an attempt to show the importance of paying attention to, how children express themselves, and place their activities in social and cultural contexts. By doing so and approaching children and their activities with an intercultural point of view, I can use my new found knowledge and use it to stimulate their future learning progresses in different fields.

The purpose with this masters thesis was to model the scanner in a system for laser bathymetry. The model was then used to develop a controller for the scanner so a good search pattern was achieved. Two different types of models have been tested, a physical model and a Black Box model of Box Jenkins type. The physical model has been derived from Lagranges equations. Identification experiments have been used to compute the Black Box model and to find the unknown parameters in the physical model.

Det finns brister i kunskapen om hur patienters upplevelser efter en hjärtinfarkt ser ut. Syftet är därför att undersöka patienters upplevelser av en hjärtinfarkt. Syftet är också att ta reda på hur patienter upplever stöd och information från sjuksköterskor och annan vårdpersonal samt vilken information som är viktig för dem. En litteraturstudie har genomförts där vetenskapliga och kritiskt granskade artiklar använts. Elva artiklar har granskats enligt Polits m fl (2001) kriterier för vetenskaplighet.

Syftet med denna studie var att bidra med kunskap om kriminalv?rdares upplevelser av sin arbetssituation och de utmaningar och stressorer de m?tte i sitt arbete. F?r det andra var syftet att unders?ka vilka strategier som anv?ndes av kriminalv?rdare f?r att ta sig an dessa utmaningar och stressorer. Empirin f?r studien bestod av sex semistrukturerade intervjuer med kriminalv?rdare som arbetar p? ett h?kte i Sverige.Vi anv?nde oss av en kvalitativ metod med en abduktiv ansats. Studiens resultat visade att stress relaterad till personalbrist och h?g personaloms?ttning var central i kriminalv?rdares arbete.

Instagram is one of the most common used social media platforms among teenagers today. It is not only one of the most common used social media platforms, but as well one of the most common places where cyber bullying takes action. By using focus groups, netnographic studies and a questionnary we investigate the meaning of technology regarding how the bullying on Instagram takes shape and the strategies used by teenagers to handle cyber bullying.Our research shows five different ways that cyber bullying takes shape and ten different strategies implemented to handle those. The findings are compared with previous research. The ten different strategies are then discussed from aspects that are found to have a big influence on how those are implemented: gender, knowledge, experience and awareness, presence of parents and other relatives, personal experience, trust in the technical solutions and the weaknesses of those. .

This study has the purpose of looking at the current and future position of record labels from a context involving the technological developments, while the opportunities for the artists are changing. As the actors inside them music industry find themselves in an ever changing climate where traditional supply chains are threatened by new technology, the record labels need to change the way they work in order to maintain their existence in the music industry. The study has been conducted by interviewing a number of people involved in the music industry, by using a qualitative method approach. The conclusion of the study shows that the traditional way of doing business by treating music as a product that makes revenue is gone. Instead the labels have to take on new roles formerly run by third parties in order to survive and be profitable, especially since artists can now in control of activities that used to be controlled by the record label..