Mechanical relays are more and more being replaced with semiconductortechnology. In this thesis it is investigated if and how the larger loads couldbe controlled by transistors. The main part of this work aims to create andverify a solution that can control the starter motor, as well as protect it incase of any failure. The different malfunctions that the solution protectsagainst is high current, too high peak current, low current, maximum cranktime and minimum cool off time. The timers also protect indirectly againstoverheating of the starter engine.The transistors used are BTS555, from Infineon.

The so called ?ByggaF-method? is a relatively new Swedish method to stop moisture from being built into a building. The method should prevent damages on buildings as a result of mould growth and moisture. The purpose of the method is to include moisture control in the entire constructionprocess, from the projecting phase and all the way to the management phase. Up until now, there is no proof if the method is profitable or not and no studies have been made on the topic.

Fytoremediering är en relativt ny saneringsmetod men har de senaste åren blivit mer uppmärksammad inom forskning. Fytoremediering bygger på växters naturliga förmåga att rena förorenad mark, vatten eller sediment. Detta görs genom ett antal olika processer där växter kan ta upp, omvandla eller stabilisera ämnen och på så sätt sanera föroreningar på ett biologiskt hållbart sätt. Våra städer blir alltmer tätbefolkade i och med befolkningsökningen i världen och en stigande inflyttning till städerna. Det finns många outnyttjade postindustriella områden i dagens städer som lämnat efter sig förorenad mark, vatten eller sediment som kan utgöra en risk för människors hälsa, djur och natur. Dessa så kallade brownfields kan få en ny användning och på så sätt undviks exploatering av värdefull natur och åkermark. Med hjälp av växter kan dessa brownfields saneras samtidigt som platsen får ett nytt liv i form av till exempel en park för rekreation.

Företag idag söker ständigt nya och förbättrade konkurrensfördelar, som är en konsekvens av den snabba och ökande globaliseringstrenden. Ett viktigt grundincitament för att skapa dessa fördelar samt bemöta omvärldens föränderlighet och krav har bidragit till att allt större fokus riktats mot behovet av en bred kompetens, det vill säga ett utvecklat humankapital, inom företag. Humankapitalet är en av de mest betydelsefulla grundpelarna i ett företag då företaget är beroende av de anställdas kompetens och innovationsförmåga. Det är således viktigt att ett företag styr humankapitalet på ett sådant sätt att det når en stärkande eller förädlande effekt. Ett sätt för att strategiskt styra förädlingsprocessen av humankapitalet är att nyttja Simons Levers of Control, vilken även går under benämningen Simons styrmodell.

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

Background: Each year approximately 30 000 people suffer from stroke in Sweden, often with substantial mental and physical consequences. Those who suffered from stroke handled the situation by mourning what they had lost and by accepting their changed body and life situation. For those who provide care for people who has suffered a stroke help and support was required. The caring science perspective was based upon caring and suffering. Aim: The purpose of this study was to describe family caregivers? experiences of caring for persons who had suffered a stroke.

This report is a description of a developed educational simulator over rail vehicles and its components. The simulator is a hardware-based prototype over a door system on rail vehi- cles. System specialists and technicians will use the prototype. The Simulator should give the user a technical demonstration on how components work in a door system. The proto- type consists of motor, switch, relay and sensor.

Ett arbete om hur man utformar externt informationsmaterial.

Earlier quantitative entrepreneurial studies with a focus on poverty rate has centred their arguments and analyses entirely on income differences which has resulted in a high poverty rate among self-employed. Their results shows that variables such as age, gender, hours of labour and structure of the household significantly affect the poverty rate among self-employed. In this study we aim the focus on material living standards instead of income differences, thus using a more representative approach while studying entrepreneurial poverty. The purpose of the study was to examine how personality traits (big five) affect the material living standards among the self-employed in Sweden, using a group of employed as a control group. Variables earlier known to affect the poverty risk among self-employed where used as control variables together with education and household income.

Friend lists allow Facebook users to group their friends and may be used to share certain information only with those in a specific list. This function has been around for several years, but has never gained any particular popularity among users, most of whom probably did not know it even existed a couple of years ago. In the fall of 2011, however, the function was updated and made more visible on the site.There are several possible uses of friend lists, such as privacy control, filtering of the news feed, self-presentation and targeted information sharing. This paper aims to investigate the extent to which friend lists are used by students today, as well as why students actually use their lists, i.e. for what purposes.Judging from the results of this study in comparison with earlier research, there seems to have been a somewhat recent increase in the awareness of the fact that friend lists actually do exist, but still most users tend not to utilize them.

The work has been carried out in cooperation with the company Zenit Design in Malmö. The project's goal was to restore, improve and produce an ozone generator. During the project, the authors sought relevant literature in databases, been in contact with US suppliers of fuel cell membranes, Asian suppliers for the processing of Teflon and Titanium parts in mechanical engineering and Swedish suppliers of various standard components. The authors had access to a temporary lab at Zenit and electron microscope at Halmstad University where material tests were performed. The authors have also had access to measurement equipment to measure amounts of ozone.During the work, the authors have mapped how an existing ozone generator works and then have their own development.

The Swedish bank Handelsbanken has, according to their own way of measuring, been more successful than a weighted average of their competitors during the last 38 years. They have also handled the recent financial crisis, as well as the one in the 1990´s, better than most other banks. This paper studies their management control system at branch level in order to identify the controls which have been enforced to ensure that a low risk level is retained in the lending. The controls that have been identified are; (1) A decentralized organization with the offices as profit centers where the manager has restrictions regarding risk level and the results are measured as K/I (cost/revenue). (2) The absence of bonuses and individual follow-up regarding performance measurement.

This master thesis has been done at Enea Epact AB. The purpose of this thesis is to develop and implement a Link Quality Control algorithm for GPRS/EPGRS in the current testing tool. A Link Quality Control (LQC) shall take quality values from mobile stations and base stations and decide a codingsscheme that opimizes the throughput of data. The Advantage with LQC is that it adapts the used coding scheme to the channel quality. If the channel quality is too bad for the used coding scheme, a slower coding scheme with more redundancy should be selected.

Bakgrund och problem: Dagens företag verkar i en osäker och dynamisk miljö där marknaden ställer allt högre krav på snabba förändringar och anpassningar till kundernas behov. För att möta denna dynamiska omgivning har en rad nya produktionsfilosofier introducerats. En av dessa som fått stor uppmärksamhet och vars användning ökat är lean.Under senare år har det kommit att riktas stark kritik mot tillämpningen av traditionell ekonomistyrning och att denna kan vara skadlig vid tillämpningen vid lean. Andra forskare tar det steget längre och ställer sig frågan om det finns någon plats för ekonomistyrningen vid operationella koncept.Som ett svar på ovanstående kritik introducerades lean accounting, ett ämne som fortfarande är hårt debatterat inom managementlitteraturen. Andra forskare skiljer här på lean accounting och lean control, där lean control fokuserar på output, behavioral samt social control.

When a car owner want to lock or unlock his or her car today, it?s preferable done by using aremote control. The system is really comfortable when the car owner is using the remote.A problem arises if a thief gets the remote.The thief doesn?t have to know where the car is parked, an approximate estimation where thecar is parked is enough.For instance, it?s enough to know which car park the car is parked in. If the thief knows that,he/she can repeatedly activate the remote control while looking for a car indicating with lightsand sounds.Because of the fact that a car usually indicates that it has been unlocked by making a shortsound indication, there will be no problem finding the car.The purpose with this project is to make a prototype which makes it harder for a thief to findthe car.