This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

In this project a LC-MS-method for the analysis of gamma-hydroxybutyrate, gamma-butyrolactone, 1,4-butanediol, amphetamine and methadone was developed.Initially, the efficiency of the ionisation of the analytes was evaluated with respect to the ionisation technique (ESI, APCI and APPI) and the composition of the mobile phase. In the next step a number of different columns was tested in order to find the one with the greatest potential for separation of the substances in question. Using the selected column, the separation was optimised by means of experimental design and the software The Unscrambler 7.8. The parameters studied were the flow rate, the column temperature and the mobile phase composition. The response variables were the resolution between the target compounds and the retention time of the last eluting compound.These experiments showed that, in order to obtain the best ionisation, the mobile phase should consist of 5 mM formic acid in water and acetonitrile.

Most people have been forced to throw away a pot-plant after its death. There are many reasons to the death of a plant, but mainly it?s because its owner forgets it, and therefore fails to water it. The purpose of this project is therefore to develop a product which can prevent this from happening, while the product has to have a low manufacturing cost to be able to compete whit other, similar, products on the market. During the project, a benchmarking has been done to give a clear picture of what the product has to compete with. The directives there are for CE-marking, and which of these who concerns the product has also been looked up.

Diet is mentioned by many seamen as a subject of joy and aims to give nutritional value and sufficient energy to manage a long working day at sea. The purpose with this investigation is to examine if there is a need among seamen to receive more information about diet regulations onboard and if they wish that it was shaped differently to meet their demands. The study is based on a literature part where diet regulations are examined and an interview part with semi structured qualitative interviews with five seamen. The conclusion of the study indicates that seamen have limited knowledge about the enunciation of the regulation, where it is to be found and consider it to be imprecise. Interviews showed that seamen believe that variety is the most important factor in diet intake and it was this expression that they primarily wanted stated in the regulations.

The background for this thesis is that at the beginnings of 1980´s the National Board of Forest started an experiment of lime dressing to reduce acidification in forest soil and in ground water. The purposes of this report are to explain organization?s, government?s and private landowners viewpoint on lime dressing and vitalization fertilization, some socio-economic aspects are presented. The general conclusions are that the majority of the interested party?s are positive to vitalization fertilization but the forests owner?s in generally need much more information about this topic..

This paper discusses the advantages and disadvantages of using different benchmarking models to measure and compare the efficiency of Swedish gas distributors. It also discusses to which extent the results of a benchmarking study should influence the revenue-cap which will be implemented in the gas distribution sector in Sweden from year 2011. The discussion is based on arguments from both theory and practical applications of benchmarking. The results suggest that benchmarking Swedish gas distributors against distributors in another country using a parametric model is most favorable, but the reliability will be increased if non-parametric models are used also. Partial and total productivity measures could be used to confirm results of other benchmarking analyses.

Abstract (in English)The task for the diploma work was to develop methods for measuring of moisture content by the Karl Fischer method, in jam, jelly sweets, and fudge.The start premises was a for the company whole new equipment, which should be started up. Then programs should be developed for different kind of samples.In the task it was as well included to develop methods for dissolving the different kind of samples, since the Karl Fischer method demands completely dissolved sample material..

The project was initiated by Medipharm which produce microbial inoculants which used as additives to preserve forage. The main goal was to test three inoculants to produce maize silege. The following Medipharm produced inoculants were tested, Milab 393, Lactisil Wolecrop II, Lactisil 300 2. An untreated control was included in the study. The trial was done at Swedish university of Agriculture and Science in Alnarp, Sweden. Eurostar was the cultivar of the maize and was grown on 20, 5 hectares.

Soil properties affect the chemical composition of soil water. When studying transport of chemical substances through a basin, it is therefore important to know from which soil layer the main part of the runoff is generated. The aim of this study is to develop an HBV/PULSE model with merged soil moisture and response routines, which generates good approximations of groundwater levels. It should be possible to extend the model to simulate transport of substances and take into account which soil layer the groundwater level is currently in. The hydrological version of HBV/PULSE is used since there is no need to account for pH or alcalinity at this stage.

Examensarbetets titel: Implementering av uppförandekod i Kina ? Like a bridge over troubled water Seminariedatum: 21 Januari 2009 Ämne/kurs: FEK K01, Examensarbete kandidatnivå, 15 ECTS Författare: Johanna Jeppsson, Anna Svensson Henning och Gustav Petersson Handledare: Gösta Wijk Nyckelord: Uppförandekod, Implementering, Kina, Sverige, Kultur Syfte: Syftet med denna kandidatuppsats är att undersöka om nationella kulturer och organisationskulturer kan ge upphov till svårigheter med implementering av uppförandekod, och vilka dessa svårigheter i så fall kan vara. Metod: Uppsatsen är en kvalitativ studie som till stor del grundas på semistrukturerade intervjuer med tre svenska fallföretag inom modebranschen med produktion i Kina. Uppsatsen har en abduktiv ansats. Teoretiska perspektiv: Uppsatsen har främst två teoretiska baser, Hofstedes teori rörande skillnader i nationella kulturer samt Scheins tre kulturnivåer.

This is a graduate work at the Swedish University of Agricultural Sciences, The Department of Urban and Rural Development, Ultuna. The purpose of this paper has been to find out and describe principles for designing parks that offers good recreational and aesthetical values and require little amount of carbon dioxide emissions during their maintenance. The purpose has also been to see if it's possible to use city wastewater in some extent to assure the plants water supply and to find other means to make it less necessary to use purified water for watering. Recently made studies as well as older ones show how important green areas are in dense city structures both from a health and a climate perspective. Trees and other plants adsorbs different forms of air pollution and can also lower the temperature in the surrounding area through their transpiration.

Syftet var att undersöka om exponering inför emotionella röster påverkar muskelanspänning och hjärtats slagfrekvens samt om det finns en samvariation mellan storlek eller längd på muskelanspänning vid aversiv emotionell input och grad av alexitymi. 24 studenter lyssnade på arga, glada och neutrala röster samtidigt som muskelanspänning mättes med EMG och hjärtats slagfrekvens med EKG. Grad av alexitymi mättes med Toronto Alexithymia Scale 20. Resultaten visade att arg eller glad röststimuli gav större muskelanspänningen än neutralröststimuli. Ingen skillnad i muskelanspänning fanns mellan arg eller glad röst.

Syftet med vår studie är att undersöka de problem som kan uppstå vid en överföring av ett styrinstrument, innehållande Key Performance Indicators, från en organisation till en annan i samband med förvärv. Uppsatsen utgår från en fallstudie av ett företag i kemibranschen. I vår fallstudie använder vi ett abduktivt angreppssätt och en kvalitativ metod. I den teoretiska referensramen utgår vi ifrån teorierna om The Balanced Scorecard och Key Performance Indicators. Empiriinsamlingen har skett med semistrukturerade intervjuer..

Background: The education for becoming a registered nurse in Sweden includes compulsory time for clinical practice. The clinical education means an essential part in the students? personal development. According to regulation for nurses, a registered nurse has the responsibility to supervise nurse students during their clinical placement.Aim:. The aim of the examination was to describe nurse students´ experiences of supervision during clinical education.Method: The study was an empirical examination based on interviews with seven nurse students.Results: The result showed that nurse students wanted to be seen and treated as colleagues, but not used as labour.

The housing sector uses 40 % of the energy in Sweden and half of the electricity usage. Theuse of energy is the main reason to the increasing rate of carbon dioxide in the atmosphere.This is the main motive but also a wish of higher safety, that is a higher rate of selfsufficientenergy production in Sweden, we want to decrease the need of using fossil fuel. Now whenthe energy price rise, the interest in energy issues increase and more people discuss thepossibility of reducing the usage of fossil fuel. A change to renewable energy such as sun,wind and water is the only solution where we can get a sustainable development.One way to contribute to a better use of energy is to build in the principle of passive house.The house is being built with a thick and tight insulation. If you use a heat-exchanger withhigh degree of efficiency and a final heating battery on the ventilation system, the heat fromlamps, devices and the ones living in the house should be enough to fulfil the criteria ofliving.