Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.

Environmental objective 17: Sustainable consumption - An attempt to integrate the global impact of the Swedish consumption with the environmental objectives system The aim of this report was to integrate the global impact of the Swedish consumption withthe environmental objectives system through presenting a suggestion for a seventeenth environmental objective ? Sustainable consumption. How the Swedish consumption pressures the global environment and methods to measure the affects was investigated. The pressure was divided into five main fields: climate, air, water, land and chemicals. The impacton humans and the biodiversity was also discussed, as well as differences between how men and women affect the environment and get affected when the environment changes.

The topic of this essay is how art exhibitions can be made available for - and conveyed to ? a visually impaired audience. Two visual impairment-displays and one available museum will be analyzed in this essay. They will be shown during the time period 2006 ? 2007 and focus on exhibitions in Sweden.Complex of problems that arises when art exhibitions are to be conveyed for those without eyesight is how you choose what can be conveyed and how this shall be conveyed.

AbstractThis research is about how some swedish teachers in high school choose literature in schools. The purpose is to underline the reasons for how some teachers think about selection, canon, classic and contemporary literature. Two survey methods were used to find the answers, wich consisted of interviews and questionnaires. The letter methods was used to obtain informations about student´s views on literature.Previous research shows that there are different opinions in what kind of literature the pupils should read in school. The results of literature, questionnaires and interviews also showed that the underlying reasons for the choice of literature, varied among those interviewed further forward ofthe students also prefer to read books during lessons, and that they prefer reading books by popular contemporary writers..

The environmental debate is more intensive than ever before and the demands on companies increase. There are a number of methods to make it easier for the companies to fulfil the demands. Life Cycle Assessment (LCA) end ecodesign are some of the methods that can be used. Syntronic AB has the possibility to reduce the products´ environmental impact in the design phase. Therefore it is important for the company to make it possible to visualize the negative environmental impacts a product can cause in an easy way. It is also important to visualize for there clients if any improvement is possible. The purpose of this thesis is to develop a simplified model.

Studier som berör ämnet hur fysisk aktivitet påverkar det psykiska välbefinnandet hos äldre är något som berör alla. Fysisk aktivitet har i tidigare forskning visat sig påverka båda den fysiska och psykiska hälsan positivt. Mycket forskning är gjord på området, dock är de äldre underrepresenterade som målgrupp inom området. Syftet med denna studie var att undersöka i vilken utsträckning fysisk aktivitet påverkar det psykiska välbefinnandet, med inriktning självkänsla och fysisk självuppfattning, hos äldre. Undersökningen innefattade en experimentell undersökningsmetod med en randominiserad, kontrollerad design.

Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.

The purpose of this study is to ? through a discourse analysis ? examine how the parliamentary committee ? Ansvarskommittén ? legitimizes the need for merging administrative regions. The committee?s investigation is what underlies the present debate on regionalisation and the merging of regions in Sweden. To carry out this discourse analysis, I have used ?What?s the problem represented to be??, by Carol Lee Bacchi as an analytical framework.

Burkina Faso as well as most sub-Saharan African countries struggle with providing food for a fast growing population. The dominating farming system is agroforestry parklands. Agroforestry parklands can broadly be defined as areas where scattered trees occur on farmlands as a result of selective clearing. The presence of trees in crop fields may in the long term have a positive effect on the production of annual crops. It is commonly discussed, but not proven, that the presence of trees leads to increased groundwater recharge due to higher infiltration capacity of the soil.

This thesis has been focused around the Diels Alder reaction with the goal to design an enzyme catalyzed reaction pathway. To achieve this goal computer aided enzyme design was utilized. Common traditional methods of computational chemistry (B3LYP, MP2) do not do well when calculating reaction barriers or even reaction energies for the Diels Alder reaction. New calcu- lation methods were developed and tested. This was the focus of the first part of the thesis, by choosing a small system, extensive and heavy calculations could be done with CBS-QB3.

The purpose of this study has been to investigate students? perceptions of the content inthe Swedish subject and current syllabus for Swedish in the third year of uppersecondary school. The purpose has also been to analyze if students are familiar with theaims they are working towards, how explicit they are and if they have any significancefor the students? results and motivation. This investigation is based on a socio-culturalperspective and was made with help of a quantitative method by using questionnaires,but has also been studied to some extent qualitatively, which have been analyzed from astudent angle.The analysis of the results shows that the students have very good perception ofwhat they should study in Swedish year three in upper secondary school.

This Master Thesis is a product development project that has been carried out in cooperation with Scania CV AB. The purpose has been to find the relationship between geometric parameters and the swirl number for an XPI- cylinder head in order to improve the design specification.The increased focus on environmental issues from society leads to tighter emission legislations for the truck manufactures. In order to drive the development forward considerable resources are spent on research and development on diesel engines and its combustion process. The inlet air has a significant impact on the formation of emissions and the flow that is desired is called swirl. Swirl is achieved by making the air rotate around the vertical axis of the cylinder.Earlier cylinder heads that has been developed at Scania CV AB have shown clear relationships between geometric parameters of the cylinder head and the swirl number.

This study deals with play and the importance of meaning of play in the learning process. The aim is to look in to and analyze four preschool teacher´s beliefs and views about the importance of play for children´s learning and development. The study looks at two different preschools, one based on Reggio Emilia- and the other on Montessori- pedagogy, and the aim is to compare the different views and ways of working that the preschool educators have.The theoretical basis for this study is both rooted in a socio-cultural and constructivist perspective, and deals with the relationships between theoretical concepts mean as play, learning, way of working and pedagogy.The study is based on qualitative research methods that consist of interviews and participant observations. The person?s participants in the study consisted of four active preschool educators, who work in two different preschools.The results of the investigation show that the educators have similar views on the importance of play for the children´s learning process, and this also applies to their way of working.

This is a paper in human osteology which concerns a paleopathological investigation about a possibly male dwarf from the early middle-age graveyard at the site of Löddeköpinge in Skåne, Sweden..

This thesis investigates the possibilities offered to a working landscape architect by anincreased and altered use of digital 3D environments. A basic assumption is that increased useof digital three-dimensional environments promotes the creative processes and presentationoptions of landscape architects.The thesis is based on literature studies and communication with working landscapearchitects, and includes an investigation of the visualization methods available in the Blender3D modelling software. The thesis provides a thorough survey of what it means to model inthree dimensions, as well as of what modelling methods are feasible for a landscape architectto use. As landscape architects, we work with human and unique processes, and thus it isdifficult to develop standardized and automatic software for our profession. One possiblesolution is to turn to open source development, where software and models are shared andanyone can contribute.