A computer model based on minimization of the free energy, capable to predict contact angles and spreading transitions between Wenzel and Cassie mode for drops placed on surfaces with different topography were implemented in matlab. Simulations were compared with experiments documented in the literature. These showed that reported transitions between Cassie and Wenzel mode can be explained by minimization of the free energy. In this report, a study on the possibility of constructing water repellent paper surfaces with a combination of treatment with octadecyltrichlorosilane and topography changes, is included..

ABB Surge Arrestors in Ludvika have for a long time had a problem to keep the moisture at a steady state in the production of their ZnO-powder, that is used to produce varistors.Some black-box models of the spray drying process have been designed and evaluated to find a solution for the problem. After evaluating the collected data it has been found that variations in the supply voltage causes control difficulties for the operator. A cascade control system was designed, consisting of three PI control loops designed with lambda tuning. The disturbance in the supply voltagewas used as a feed forward in the control system.At the end of the project the control system was installed, and tests were made to verify the functionality of the regulator. It was shown that most of the variations in the moisture of the powder could be eliminated using small resources, through purchase of a process controller and four power meters.

This paper is an account of the inventory I've made of documents in the archive at Museum Gustavianum, Collections storage Husbyborg, relating to the excavations in Asine, Greece, in the 1920s. The aim of this inventory has been to establish which of the documents in the Husbyborg archives that belong to the department of Classical Studies at Uppsala University. Documents belonging to other archives have been found alongside the one mentioned above and those are the Original documentation (loan from Carolina) and the personal archive of Professor Axel W. Persson. The documents have been arranged according to the General Archive Scheme (Allmänna arkivschemat) seeing that the department of Classical Studies already had a series named Documents relating to the departments archeological collections, and the inventory I've made will be incorporated with that.

This study titled When the spaces dominate A study of the school as disciplinary rooms is a study where the emphasis is on quality and where the results are based on observations. The purpose of the research was to analyse rooms and other artefacts in the school as seen from Foucault?s analysis of power. He emphasised that power is expressed in human relationships. To understand how that power is used one can study the techniques adopted and resistance offered.

Denna studie är en beskrivning av två socialtjänsters olika handläggningsstrategier i samband med att de lämnar upplysningar till domstolen i mål om vårdnad, boende och umgänge och motiven till de olika strategierna. Vårdnadstvister som tas upp i domstol är en lång process och kan vara påfrestande både för barnet och föräldrarna. Om föräldrarna i en vårdnadstvist vänder sig till domstolen involveras även socialtjänsten. Detta då domstolen enligt Föräldrabalken ska begära in upplysningar om barnet och föräldrarna från socialtjänsten. Inför dessa upplysningar väljer vissa kommuner att samtala med föräldrarna medan andra kommuner inte gör det.

THE PAINTING CHILD. A DISCOURSE ANALYSIS OF AESTHETIC PROCESSES OF LEARNING IN RELATION TO DEWEY´S ART AS EXPERIENCE.The aim of this study is to present a discourse analysis made on five-year-old children during art activities in a preschool in Sweden. The questions asked are: how does interaction take place between the children, or the child and the teacher, during art activities? And what does this tell us about the relationship to art in preschool? In Art as Experience John Dewey claims that art is separated from other experiences of life, but that it ought to be close to ordinary life-experiences. Today visual culture is important in society but not in school.

The valleys southwest of Storuman has been exploration targets for sulfide mineralizationslike the Laisvall Pb-Zn deposit since the late 1900 when several mineralized boulders wherefound. No previous glaciogeological survey has been made. This report focus on thedirections of local paleoiceflows and glacial transportation in the area of Skikkisjön, thelocation of the westernmost mineralized boulder, found in 2010. The aim of this study hasbeen to create a picture of the glaciogeological evolution of the area in order to determinatepossible hostrock areas. My results suggest that the geomorphology and transportationoccurred during a western icedivide located in the nearby mountainrange.

E-books are not yet fully established on the Swedish book market. A frequently discussed theory is that this might be because of a loss in the reading experience. This thesis has the primary purpose to investigate whether the reading experience from E-books differs from the experience of reading a traditional book in paper. The book used for comparation is a poetry collection named Rakel delat med tio. I have designed the cover and the inlay of this book and as a part of the thesis the working progress is described.

About 10 % of the adult women population in Sweden are treated annually for urinary tract infections. The increasing bacterial resistance towards antibiotics is classified by WHO (World Health Organization) and ECDC (European Centre for Disease Prevention and Control) as one of the greatest treats for human health in a global perspective. To find alternatives scientists are studying the possibility to use probiotics to reduce the frequency of recurring urinary tract infections. This literature study examines five randomized double blinded placebo controlled studies where different strains of Lactobacillus have been used as a prophylactic to women suffering from recurrent urinary tract infections and bacterial vaginosis. Overall the studies do not display enough promising results to recommend the use of probiotics as a prophylax or cure..

To be allowed to sell Z-suspended vehicles with dipped beam Xenon or LED lighting, Scania have to develop automatic headlight level control. This master?s thesis aims to be the foundation to that development.The thesis consists of several parts; a market analysis of how competitors to Scania and the general vehicle industry solve this problem; several available principles for detecting the amount of control needed; the construction of a test station for sensors, a control unit and components connected controlled by the control unit; a further theoretical and practical development of one principle ? one rotational sensor connected between the chassis and the back drive axis; a state flow model programmed in Simulink that produces the control signal for the headlight leveling from the sensor input.Lastly the thesis gives some recommendations to the further development and implementation of automatic headlight level control on Scania vehicles..

The aim of this Master of Science Thesis is to develop guidelines and improvementsuggestions of RiNOVA Traffic AB?s dynamic speed bump. The project started with athorough pre study of the design and its function to find out how passing vehiclesaffects the dynamic speed bump. The majority part of the pre study was to createnecessary mathematical models to explain the arisen forces and strains.The results of the mathematical models gave necessary information about the designregarding weaknesses and flaws. The most critical ones where those which interferedwith the design?s performance and reliability, and therefore needed to be corrected.These problems where more thorough analysed and discussed with experts before thefinal guidelines and improvement suggestions where developed.The parts of the design that had to be redesigned were the extension springs and thebearing that enables the dynamic properties.

AbstractThe struggle for land has been an issue ever since Brazil was colonized by the Portuguese Crown. The deep social inequalities that the country faces were raised then. More than 45% of the agricultural land is controlled by only 1% of the landowners. There have been many movements since then, who has fought for agrarian reforms.MST, the largest social movement in Brazil, was born in the 1980s. They managed to mobilize the peasants and the poor people.

Results from previous studies have showed that people with depression has an impaired verbal fluency. The aim of this study was to investigate whether individuals with depression also generate more words containing negative valence. Controlled Oral Word Association test were administered to a group of 13 mildly depressed individuals and a group of 20 non depressed individuals. The fluency and valence of the words produced was analyzed.The results showed no significant differences between the groups regarding either verbal fluency or negative valence. However, a significant positive relationship was found between a negative mood and negative valence.

Rapporten är skriven för att dokumentera den befintliga installationen av ballast-, läns- och brandsystem ombord på fartyget M/S Calmare Nyckel. I enlighet med uppdragets specifika-tioner kommer även förslag på förbättringar att presenteras. Förslagen bygger till största del på fakta från en leverantör av ventilkomponenter och av klassen ställda krav på installationen. Förbättringarna beaktar i huvudsak minskade risker och ökad säkerhet. De största skillnaderna med de nya förslagen är att länsvattensystemet skiljs från de övriga systemen, de viktigaste funktionerna fjärrstyrs med hjälp av pneumatik och systemets komponenter märks enligt branchstandard..

This thesis studies the negative impact that control signal saturation may have on a controlled system. Different methods that are used to compensate for this problem are also studied and evaluated. Both sensitivity to disturbances and the effect the method has on the systems'ability to follow a reference signal will be examined. Stability will be discussed, but no conclusions whether the systems are stabilized or not can be drawn. Control signal saturation will lead to a slower behavior in general.