An investigation of the heat impact of laser cutting on the material properties when producing tensile and impact test specimens of different steel types of varying thickness has been performed. The purpose of the thesis project was to provide recommendations regarding how much material that needs to be milled from the laser cut edge before tensile and impact tests. The study has been performed partly by investigating the test specimens by heat camera when the specimens were cut in the laser cutting line and partly by performing hardness tests, investigation by microscopy, and tolerance and roughness measurements and tensile tests of the laser cut material and material produced in the traditional multi operation machine. The results show that the heat affected zone in the thicker materials is greater than previously thought of, and that the currently used recommendation has to be adjusted. The study clearly shows that the thicker the material, the greater the heat affected zone, independently of the steel type, since the thicker material takes longer time to cut.

Examensarbetets mål är att bygga en Quadcopter som kan flyga och styras via en radio-sändare i alla riktningar, stabilisera sig själv i luften, kunna landa autonomt och den skall även motverka krock i framåtgående riktning.För att uppnå grundmålet att kunna flyga så implementerades en PID-kontroller som används för att stabilisera Quadcoptern i luften genom att reglera motorer efter sensor-orientering. Denna sensororientering fås kombinera vinkeldata från en accelerometer och ett gyroskop.För att uppnå målet med autonom landning så användes en ultraljudssensor. En egen algoritm utvecklades för att läsa avstånd från marken. Avståndet från marken användes som grund för att skapa en egen algoritm för den autonoma landningen.Quadcoptern kan i slutprodukten stabilisera sig själv i luften, styras via radio och landa autonomt. Säkerhetsfunktioner som att aktivera autonom landning ifall Quadcoptern kommer utanför radions täckning är implementerade och även en brytare som stänger av motorerna.

This is the final documentation of the basis that can be the foundation of how to solve theproblem with leaking hydraulic oil in a shoe press at the company Albany InternationalAB in Halmstad, Sweden.The project has been performed at Halmstad University as a degree project commissionedby Albany International AB. The purpose of the degree project was to find a way ofdetecting the hydraulic leak of a shoe press. The reason is that the shoe press runsunattended during nights and weekends, this can cause an extensive decontaminationwork and production stop if leak. The hydraulic oil could be leaking in large amounts orslowly as a fine mist. The development of a working system that can detect a hydraulicoil leak and stop the machine before a large amount of hydraulic oil leaks out wouldconsiderably reduce the cost of the decontamination work.

The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model based on data sampled every minute was developed to estimate the bearing temperature. Then a detector for detection of change in bearing temperature based on the CUSUM-algorithm was designed. Since the amount of data was very small the developed model was too uncertain to be used in a working system.The designed fault detection system showed to work well for the available data.

The purpose of this Masters thesis is to analyze the research front within medical ethics. We wish to identify which research themes that are included in the subject field of medical ethics. The research themes can be identified by a couple of bibliometrical methods and techniques. In our case, it is bibliographic coupling combined with a cluster analysis. The analysis is accomplished by the extracted references from articles in the two journals Bioethics and Journal of medical ethics.

For several years Uppsala University together with several companies has been involved in a WISENET project aimed at improving railway transport security. By placing a sensor system near the wheels of each wagon, the temperature of the bearings can be measured and transmitted to a collector placed centrally on the wagon. This in turn transmits the collected data to RFID receivers placed intermittently along the railway.As the signals are transmitted wirelessly, problems may occur as the antennas get dirty or coated with ice and snow. To determine the effects of these coatings, several tests were performed examining the reflection coefficient S11, the impedance Z11 and the efficiency eta of an antenna, and how they varied when various coatings were placed over the antenna. Examined coatings were ice, snow and water to determine the effects of weather, and various metal-based coatings: powdered iron both pure and partially oxidized, and iron ore granules.

The subject of my thesis is what I have chosen to call the ?action babe cinema? of the 21st century, essentially action-movies featuring a female heroine in the lead role. Inspired by the theories of Vladímir Propp, author of Morphology of the Folktale, I have tried to reveal the underlying structure of these films. I have chosen eleven films which form my material, and from these extracted a number of functions (which means the actions of a character), that reoccur frequently. The heroines? transformation can be seen as a central theme of the action babe cinema, and I have divided the films into two groups depending on the course of the transformation, either from soft to hard or the other way around.

AbstractThis paper discusses how system development methods today support communication between system developers and their customers and end users. Today there are many system development methodologies with different aims and emphases. It is difficult, however, to find among these methods those who promote good and effective communication with customers because so many of these are very technically rooted and not as much directed towards the soft aspects of systems development - i.e. Human aspects. Our own experiences tells that a simple interview can be initialized without us having an idea what to ask the customer about or how to structure it up - nonetheless it?s done, but the outcome is just chance.

I studien har undersökts vilka kunskaper och färdigheter som elever i årskurs 9 värdesätter och anser som mest väsentliga att bedöma inom sång och ensemblespel och relatera dessa bedömningar till de nationella mål och kriterier som har fastställts för ämnet musik. Jag har använt mig av kvalitativ samtalsintervju som undersökningsmetod och begränsat mig till att undersöka sexton elever, 8 pojkar och 8 flickor, som jag undervisar i musik på en högstadieskola i Mellansverige. Undersökningen utgår från ett fragmatiskt- och sociokulturellt perspektiv på lärande. Resultatet belyses också utifrån formativ bedömning i undervisning och betydelsen av att använda bedömningsmatriser för att tydliggöra för eleverna vad som de förväntas lära sig. Resultatet visar att en gemensam syn på bedömning är viktig för att eleverna ska veta på vilken kunskapsnivå de befinner sig på men även för att de ska veta vad de behöver förbättra.

The meaning of the covert co-ownership is that the parties must have intended that the property should be their common. A party must, to be able to claim ownership, have con-tributed to the acquisition financing through the financial contribution. Further shall the fact that the property should be their common be agreed or have been assumed by the par-ties. There are the circumstances for the purchase that should be considered in determining if covert co-ownership is presumed. Covert co-ownership has been established although one party only contributed a small part to the acquisition.

The giant otter (Pteronura brasiliensis) is listed as an endangered species and scientific litterature concerning its biology and behaviour is scarce. The current study observed a group of three giant otters in a Swedish zoo. First the otters normal behaviour was recorded. Then the aim of the study was to see if the otters behaviour changed when given blue mussels (Mytilus edulis). Furthermore the aim was to see if the otters displayed any tool-using behaviour when given mussels.

This is a project about how you grow timothy seed and red clover seed successfully. The main part is about economic analyse to see if it is any economy by growing leyseed. There are lots of things to be aware of to get all the costs in your economic analyze. Timothy Timothy seed is planted on 4400 hectares in Sweden. It is possible to grow timothy seed in the south part of Sweden. Timothy is very sensitive for dry weather in spring and in the beginning to summer. Timothy gives acceptable harvest of seed for about three years. Red clover Red clover is also sensitive for dry weather and is suitable to grow in the south part of Sweden.

This thesis work was made to optimize the writing of the construction specificationsat FKA. These construction specifications are created before each plant modificationsthat is started because requirements from the Swedish radiation safety authority(SSM) and internally on Forsmarks nuclear group as constructions / implementationdocumentationThe study was done through seven interviews of two people at three different groupsinvolved in the construction specification and an interview from the group accreditedverification. The four selected groups were selected through an extensive analyticalwork resulted in an elimination matrix where these four groups was considered to bemost involved with the construction specification.The questions asked to these individuals were based on the instructions and sampletext that are described in the construction specification. To ensure the quality of thethesis were to limit itself to the chapters that were considered most relevant toimprove. The analysis revealed a number of points that should be improved, partlyinto the routines when writing the construction specification and when ether sampletext or suggestions should be changed and complemented.

En närvarodetektor i form av en IR-detektor uppfyllde inte de önskade kraven och Eluw Electronic AB hade planer på att utveckla produkten vidare. IR-detektorn registrerar endast rörelse på en person vilket inte alltid är tillräckligt i företagets anläggningar. En person som inte är i rörelse måste också detekteras för att upprätthålla säkerheten runt en specifik anläggning. Företaget efterfrågade en närvarodetektor som klarade båda dessa detekteringar. Ett examensarbete på Luleå tekniska universitet löste uppgiften och en väl fungerande närvarodetektor med IR och ultraljud har utvecklats.

Under drygt två månader har produktionen vid JM Entreprenads projekt Kv. Solägget följts för att med utgångspunkt i projektets produktionstidplan, aktuell verklig position, diverse dokument samt i intervjuer avgöra varför fortskridandet eventuellt avviker från det planerade, där främst förseningar var intressanta.Kv. Solägget genomförs på generalentreprenad åt JM AB och följer således de arbetsmetoder som används inom JM AB. En väsentlig skillnad mellan JM AB och JM Entreprenad är att JM Entreprenad inte är lika väl inkörda på gällande enhetstider och rutiner som JM AB:s hantverkare är. Genom att i tidigt skede sätta in ytterligare resurser än vad som var planerat i kalkylen undvek man att under tiden för min fältstudie uppnå en avvikelse som motsvarar en försening och snarare lyckades arbeta in ett försprång på upp till två veckor.För att möjliggöra en produktion utan förseningar behandlar rapporten hårda, mjuka och yttre faktorer med en betydelsefull utgångspunkt i vikten av att åstadkomma en väl utarbetad planering inför produktionsstart och på så sätt i ett tidigt skede ta ställning till möjliga faktorer som kan komma att påverka avstämningarna mot produktionstidplanen på ett negativt sätt..