The purpose of this degree-project was to investigate the possibilities for primary air preheating into the two smallest waste incineration boilers of Halmstad Energy and Environment. The investigation is a pre-study which has the primary goal to evaluate technical and financial offers from companies that manufacture primary air preheater, and investigate if it is technically and financially profitable to do a purchase on primary air preheaters in the future.In the pre-study it is proposed that it is most efficient to have individual primary air preheater, one for each incineration boiler and the primary air are also proposed to be preheated by hot water in the pre-study. Further in the pre-study it is proposed that the heat-exchanger should have plain tubes instead of finned tubes, to avoid getting dirty fast. The space in the boiler-room is limited, and therefore the major problem was to fit in the primary air preheaters into the boiler-room. By comparing the different offers from the companies, the result in the pre-study shows that the offer from the company C.A.

The mental health has during the recent years decreased among Swedish adolescents while theinternet has become a common tool for communication between people. Aim: The overall aim is toidentify the relationship between internet use among adolescents and their mental health. Method:A literature based study within a defined research field. Result: The scientific hypotheses whichexist is based on whether social capital increase or decrease due to internet use. The healthoutcome is positively affected by internet communication, especially for boys and socially anxiousadolescents.

During an excavation at Old Uppsala 571 raw garnets was found. In comparison with similar fragments from other sites in Sweden my aim was to prove a completely domestic production of garnets for cloisonné work. I have chosen to look at the archaeological sites of Old Uppsala, Valsta, Slöinge and Paviken and more closely at the material from Old Uppsala and Valsta. My theoretical framework has been to look at the garnets own agency in the contemporary society.Garnet cloisonné was a popular jewellery form during the Merovingian period on the continent although it came to an end in the early 7th century. It was during this time in Scandinavia a new sort of garnet, technique and paste was introduced and the garnet cloisonné was profoundly used for the gear of the elite and ritual objects.

A mobile testing application using Unity was developed to analyse what impact button sizes and button layouts has on the accuracy of touch as well as the time to finish a labyrinth. This was tested on a Nexus 4 phone. 28 users navigated a small object through a labyrinth in which they collect keys to open the door to the exit. Each participant did the test 6 times with different combinations of button size and button layout each time, done in a random order. Hits, misses, completion time, order of button size and order of button layout was collected and then visualized using R.

This paper describes the development of a simulation model for the ambulance flow in the Västra Götalands-region of Sweden, and an analysis tool for the output of the simulation model. The aim of the simulation model was to be able to evaluate the outcome from changes in the ambulance operations, such as a reorganization of ambulances or an increase in intensity of the ambulance calls. This evaluation is meant to serve as decision support for the strategic planning of the ambulance operations. The analysis tool was developed to visualize the abundant geographical data produced by the simulation model in a meaningful way. The simulation model was validated against historical data which showed that the dispatch time for the highest prioritized ambulance calls corresponds well with historical data.

A mapping process is ongoing in Sweden concerning a phenomenon known as ?honour related violence?. The explanations of ?honour related violence? often focus on culture and ethnicity, thus establishing differences between the majority society and offenders and victims. Given that some scholars critique mapping for focusing on predetermined objects, my aim is to study discursive conditions for abused girls, who are constructed as being from within ethnic minorities, in relation to their contact with the Swedish welfare system.

Quality Control is a term often used within production and is referring to managing processes so they produce capable products. Within Quality Control, process capability index is a common measure to oversee processes. Safety Region Plots were introduced to do this graphically. In Albing & Vännman (2010) the concept of Safety Region Plots is expanded to incorporate an elliptical shape. The method of Elliptical Safety Region Plots assumes a normally distributed data.

Behovet av skogsbränslen har ökat i takt med en ökad efterfrågan av förnyelsebara energikällor, samtidigt som andelen skogar med ett omedelbart röjningsbehov stigit. Det har lett till att innovatörer letar efter nya system för skörd av biomassa i dessa bestånd. Syftet med denna studie var att modellera och analysera ett maskinsystem som är under utveckling för skörd av biomassa i klena förstagallringar. Maskinsystemet ska fälla, aptera och bunta träddelar i bestånden. Skördaren som utgör basen för konceptmaskinen är den fyrhjuliga modellen av Komatsu 901TX.1. På basenheten kommer det att monteras en helautomatiserad extrakran/leveranskran. Leveranskranen står för transporten av det skördade virket från skördaraggregatet till en helautomatiserad buntningsenhet. Resultatet som redovisas i rapporten har tagits fram genom simuleringar i simuleringsprogrammet Arena 5.0.

In Automatic Milking Systems (AMS), cows are kept in a free stall barn equipped with one or several milking units (MU). The cows? activities in the system are called cow traffic. There are three types of cow traffic systems: guided, partly-guided and free. Free systems have no gates, allowing the cows access to the feeding and resting areas at any time.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

The purpose of this degree-project was to investigate the possibilities for primary air preheating into the two smallest waste incineration boilers of Halmstad Energy and Environment. The investigation is a pre-study which has the primary goal to evaluate technical and financial offers from companies that manufacture primary air preheater, and investigate if it is technically and financially profitable to do a purchase on primary air preheaters in the future.In the pre-study it is proposed that it is most efficient to have individual primary air preheater, one for each incineration boiler and the primary air are also proposed to be preheated by hot water in the pre-study. Further in the pre-study it is proposed that the heat-exchanger should have plain tubes instead of finned tubes, to avoid getting dirty fast. The space in the boiler-room is limited, and therefore the major problem was to fit in the primary air preheaters into the boiler-room. By comparing the different offers from the companies, the result in the pre-study shows that the offer from the company C.A.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

This thesis is part of the evaluation of a development project in Serbia, where cooperativeshave been formed in order to make the members support themselves trough organic farming.The purpose of the paper has been to find out if the goal of making the current members andpotential new members able to support themselves on what the cooperatives produce, hasbeen reached. The goal is to be considered as partly fulfilled; according to the last annualreport from Odraz, ?the registered cooperatives have become fully functional and stable andthey have started making some modest profit.???the majority of the beneficiaries think thatthey are self-reliant??. In order to find out what is required in order to fulfil the establishedgoal entirely, (for example there are no reports of that new members have been recruited, andthe fact that most, not all, current members of the cooperatives (the beneficiaries) say thatthey are supplied from what the cooperatives produce), I have tried to identify the conditionswhich the cooperatives operate under. The basis of the paper consists of a literature review,interviews with the directors of the cooperatives, a questionnaire dealing with the businessenvironment and various external sources in Serbia..