Hydropower is the largest renewable energy source available in today's society. Operation and production is handled by high-tech electronics. This thesis is done on behalf of Statkraft Sweden AB who wants to explore the possibility of replacing the hydraulic cylinder with an electric actuator, generally as well as a case of a small power station on the river Nissan. Whether it is the chaplain or francis turbine vanes are actuated by hydraulic cylinders. Because of Gustavsberg hydropower is inconstant operation, this report is based on power calculations, which are read and computed according to the available hydraulic diagram.

The purpose of this Master thesis is to examine whether the term elasticity is relevant and functional to apply to public library organisations. Another aim of the thesis is to relate the term elasticity to public library organisations in a network society. Sociologist Manuel Castells provide the theoretical framework on the network society. Three investigations (meant to complement each other) in two Swedish public libraries seek to give answers to these questions.To be able to examine which areas of public library activity are elastic, I make a rough definition of what public library organisations consist of ? nine activity fields are identified using IFLA?s guidelines in combination with Swedish law of public libraries.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

The aim of this study was to analyze the assessment of the national tests seen from the teacher?s perspective. The national tests are performed in the Swedish school, classes 3, 5, 9, and the upper secondary school (gymnasiet). There has been an ongoing discussion regarding assessment and grading for a long time and it is of high interest now more than ever. The last control assessment done in 2009 by the department of school inspections on the order of the Swedish government, showed big differences between the assessments done by the teachers, and the assessments completed by the department of school inspections.

Standing outside the EU and the EES, Switzerland is a unique state characterized by federalism, direct democracy and neutrality. Though always focused on preserving these features and its sovereignty, Switzerland has managed to gain access to some sectors of the single market through bilateral agreements with the EU. The purpose of this thesis is to examine what level of integration Switzerland has reached in those bilaterally regulated sectors of the single market. As integration cannot easily be assessed, the extent of the Swiss adoption of the acquis is seen as an indicator of the level of integration and is thus examined. The conclusion is that Switzerland, mostly due to the economic interest of common rules, but partly due to pressure from the EU, almost completely adopts the acquis in the bilaterally regulated sectors, including the interpretation of the ECJ.

70 % of the lakes and waters in the water district of northern Baltic Sea do not reach the requirements for good ecological status. This is mostly due to eutrophication caused by a too high deliverance of nutrients from agricultural land or effluents. Losses of particulate phosphorus through water erosion contribute to a great extent to this eutrophication. In the action plan for the water district cover crops are mentioned as a measure for reducing losses of phosphorus from arable land. This paper reviews the possible effect of cover crops in the water district and discusses what crop that would be most suitable.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

Biogas is a renewable energy source that is produced by anaerobic digestion of organic mate-rial. In Sweden, biogas predominately comes from sewage water sludge and landfills or from organic waste of households and industries. Small scale digestion plants at farms are espe-cially expected to contribute to increased biogas production in the future. Biogas can be ob-tained directly in it?s raw form and used as fuel in a combustion chamber.

Nurses in health care have a responsible and sometimes stressful job. Nowadays there?s a high pace in health care where many decisions have to be made during time pressure, a lot of information has to be transferred between health care units and sometimes complicated equipment are used. Cases of mistakes are reported more than ever to the national committee responsible for health care. Many of the mistakes, where the nurses are involved are due to the nurses? stress.The aim of this study was to gather information to describe causes of stress in nursing care and the nurses? experience of stress influence on health care.The method that was chosen for this study was a literature review where scientific, critically reviewed articles were analyzed.  The analysis resulted in two main themes.

The primary function of a mixer is to keep a fluid in constant motion. All mixing applicationsrequire varying degrees of small-scale turbulence and bulk flow. The performance of asubmersible mixer is measured by the thrust that it produces, while the strength of the bulkflow is dependent on the total amount of installed thrust.In a mixer, the fluid quickly flows past the propeller, and as a result, the current is mainlyaxial. The fluid will also obtain a rotating velocity, or a swirl, though this is significantly lessthan that of the propeller. During the process, the total amount of energy increases in the formof static pressure and kinetic energy.

In the summer of 2009 the High Line opened in New York, a park built on an out-of use elevated rail viaduct. The park meanders its way through the buildings and allows the visitor to see the city from a totally different perspecive than we are used to.I have made a Design proposal in Eriksdalslunden, Stockholm, with inspiration from the High Line. The proposal is based on design ideas of a park I logically call the Low Line, as the place isn't elevated as in New York, but lowered. The two places have some similarities, mainly the strong urban identity and the tracks crossing both areas. They also have very obvious differences, above all the fact that Eriksdalslunden is situated in a swale and is defined in a third dimension by the high bridges that crosses the area.The High Line is designed by James Corner Field Operations, and they have been working using their motto 'Keep it Simple, Keep it Wild, Keep it Quiet and Keep it Slow' during the whole process, words that normally aren't associated to Manhattan.

Background: The competition is getting harder between the universities. To reach the high school students and discover which means of contact they prefer and how they perceive student recruitment are important issues in order to succeed in marketing strategies.Purpose: The purpose with our report is to investigate, analyze and compare the student recruitment in three universities and investigate how the high school students want to be contacted. Then we compare to see if they think alike.Method: We have done a qualitative study and chosen to use focus group interviews for the high school students and interviews for the universities to collect our empirical data. We have compared the empirical data and analyzed it with communication processes and marketing communication as theoretical grounds.Result: All of the universities work approximately the same way with their student recruitment. They put a large effort in the Internet and social networks as well as the personal contact.

High heels ? a fashion that has not gone out of style after hundreds of years. Despite their esthetic advantages, high heels become uncomfortable and harmful after repetitive and long term use. With this as a starting point, Huyen Nguyen ? a student at the Innovation Engineering Program at the University of Halmstad ? decided to make a final thesis project. The project goal has been to combine the esthetic advantages of high heels and bring a comfortable solution to the equation.

The thesis aims to describe the current sales climate in the context of complex sales in business-to-business. The purpose is to increase the clients knowledge of sales and test the clients hypothesis that the sales climate is changing from Solution Selling to Insight Selling, further the thesis aims to contribute to the scientific debate of sales. Solution Selling is characterized, as the name suggest, by selling of solution to the customers needs. With Insight Selling the seller has a provocative approach towards the customer and the seller is searching for customers in the need of change. This is a qualitative study conducted with eight interviews and one focus group.