Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

This study has focused on testing the following two hypotheses:? Pest resistant plants have higher levels and/or several different kinds of secondary metabolites. ? Induced defensive systems in resistant plants are activated more rapidly than those of susceptible plants. As a background for the test of the hypotheses a short literature study was performed concerning plant defensive mechanisms in Arabidopsis thaliana.

This student report is about canine infectious skin diseases. It is primarily directed at veterinary assistans. The report includes a description of the skin?s structure and immunologic defences. The four types of allergic reactions are described. Different diagnostic techniques are also accounted for. The skin diseases included in the report are: fleas, lice, Sarcoptes scabiei, ringworm, Cheyletiella and leishmaniosis.

Young men who commit sexual abuse is a complex topic. This study is based on litterature on the subject and the material is processed through a qualitative content analysis. The study aims to study how the litterature describes the reasons why young men commit sexual abuse. It also aims to explore what is described to be effective treatment of young men who committed sexual abuse. The study found that most of the young men who commit sexual abuse comes from families where violence and psycohological abuse occurs. Many have themselves been victims of sexual abuse.

The aim of my study was to investigate a few young peoples experience of their treatment. The study was qualitative based on interviews with three young persons at the end of their treatment there. The subject was chosen because this kind of youth housing is an interesting alternative to institutional care for young people, despite there is not much known about the results of the treatment. The results were analyzed from earlier research and central concepts from the theory of empowerment and Anton Antonovskys theory about Sense of coherence. The results of this study show that these young peoples are satisfied with their treatment at the youth housing.

Diabetes Mellitus is one of the most common endocrinologic disorders among dogs. The disorder has a complex background, and successful treatment requires a well-functioning co-operation between pet owners and the veterinarian. The purpose of this study is to investigate the owners? perspective of diabetic treatments offered, and to estimate expected length of survival post-insulin therapy. The research findings are based on a survey mailed to 77 pet owners, whose dogs were diagnosed with diabetes between 1999 and 2003 at the small animal clinic of the Swedish University of Agricultural Sciences. The median survival for the dogs that underwent insulin treatment was 31 months, i.e.

The sound part is mainly practical and is dependent on concepts that have been tested through measuring with a sound level meter. The design part is more theoretical and has been verified with CAD models and finite element analysis.With a sound damping hood on the compressor the sound level is reduced with up to four dB. An optimized absorbent for the compressor space gives a reduction with three dB. By using the insulation for the heat water tank as absorbent we can see a sound reduction on the lover octave bands. A reduction like this is elsewhere hard to achieve as at it requires thick absorbents.By changing the today?s insulation to the heat water tank to a form of polystyrene polymer insulation the weight from the heat pump above can be transferred to the stable heat water tank.

AbstractThe future of ethanol is depending on good solutions for the production. ENA energy power plant produces electrical power and district heating by heating biofuel. By building an integrated bioenergy plant surplus steam could be used to produce ethanol as fuel to vehicle.This would mean that ethanol is produced renewable energy and the energy for the process derives from the surplus of power.  ENA energy, MDH (the University of Mälardalen) and the energy authority has initiated a research project were different bioenergy combinations integrate with existing power plant.  As a part of the project which size an integrated factory should be to gain the best efficiency for the plant was investigated. Consideration will be taken to the cost of the production in order to be competitive to the price of imported ethanol.  Etanolens framtid vilar på bra lösningar för framställning.  I ENA energi kraftverk i Enköping produceras el och fjärrvärme genom eldning av biobränsle.  Genom att bygga ett integrerat bioenergikraftverk där skulle man kunna använda överskottsånga till att framställa etanol som fordonsbränsle.

The topic of this paper is tuberculosis, especially in regard to the sanitarium movement and the efforts that were made to cure, ease and stop the spreading of the disease. The sanitarium movement was established in the late 19th century before any effective cure for the disease had been found. At this time the only treatment for the patients were fresh air, rest and good food. The paper analyses the case books for some of the patients at the sanitarium Lugnet which was situated close to the Swedish town Växjö in order to see if the treatment of the patients differed depending on gender. The result of the inquiry suggests that there were no difference in the treatment of men and women..

The purpose of the following essay has been to identify four men?s momentums of their volunteer access to treatment for their disruptive gender-based violence. The questions that have been asked in the entrance of this field have been divided into the following questions: (i) is it possible to identify the processes of change that leads to turning points into the interviewed men's treatment of violence, (ii) how do the interviewed men, themselves, reflect on their turning points into treatment, and (iii) are there other, implicit, interpretations and analyzes of men's access into treatment that I can discern in their stories? As a point of departure of the analysis one theoretical perspective has been used to explain and analyze men?s access to treatment, the sociological life course perspective, focusing on the concept of turning points.The method to approach this field has been qualitative interviews with a life story oriented approach which means that, focus has been to let the four interviewed men describe their lives from early childhood to their adulthood and from their histories identify contingent processes to their access of treatment. The study resulted in a division of two parts, one part consisting the processes that have been identified by the men?s stories of present tense of violent outbursts.

Small hydropower plants have been an important source for electricity for many years. During the 70?s the general thought was that nuclear was the future. Around 2000 small waterpower plants were shut down. It wasn?t profitable to invest in.

This has been a thesis work for an bachelor degree at Umeå university. The work has been done at LKAB?s facilities in Kiruna and its main purpose has been to investigate and construct some conceptual designs for replacing a screen with magnetic separation in KA3 concentrator plant. First all information available about magnetic separation was gathered and studies of magnetic separation at the sorting plant and studies of the plant KA3 was conducted. Companies that manufacture magnetic separators were contacted.

A new build in the Swedish nuclear power system would entail increased re-quirements for the proposed repository, which is adapted after the reactors of today. With a fast reactor, capable of burning nuclear waste, operating in parallel with the light water reactors, the increased requirements on the repository could be reduced.In this thesis, simulations of a light water reactor and a fast reactor have been performed by using the Monte Carlo code Serpent to investigate the changes in the fuel inventory. The light water reactor in the study is a boiling water reactor and the fast reactor of the type sodium-cooled fast reactor and they have been used for three different operation scenarios.By studying the fuel composition and the results from the simulations of the three scenarios conclusions can be drawn. Conclusions regarding the change of the fuel inventory and decay heat in Clab as well as the interim storage facility and in the repository. Depending on the operation alternative the changes dif-fered significantly and especially regarding the mass of burned actinides for different fuels in the fast reactor.The lowest increase of fuel assemblies was meet when using 50 years old fuel with 20MWd/kg U burnout and 2,0 % enrichment for start up of the fast reactor and 30 years old fuel assemblies with 50MWd/kg U burnout and 4,7 % enrichment for the further operation of the reactor.The increase of the number of fuel assemblies was 3174, which is equivalent to 641tons of heavy metal.

In this report a study has been done regarding different heating systems on which are the mostcomprehensive with solar heating systems. The report has also been focusing if solar power can beused as a primary heating source for supplying more than 50 % of the buildings total heatingproduction. The University of Dalarna constructed a demo-house for this purpose and according tocalculations the total solar usage is more than 50 %. This house has been made for referenceregarding the design of the heating system of property 5:37.Further studies have been made to compare different heating systems that are compatible with asolar system, where the compared systems purpose is to be independent of direct using electricity. Asystem of this design is regarded as sustainable according to environmental as economic issues.

Using a symbolic interactionistic analytical approach, this essay aims to study the socialisation of young women?s sexuality in treatment institutions for young women. Through qualitative interviews with staff members at said institutions, concerning their views on young female sexuality, and how they discuss sexuality with the young women in the institutions, my aim was to identify the socialisation of young women?s sexuality. I have also investigated how the staff experiences their own sex as an important factor in conversations about sexuality with young women, as well as the possible effect sexually mixed or sexually segregated institutions exert upon conversations about sexuality.