Welding is a common method for joining of metal or plastic construction parts. This report describes several different weld methods in general terms. The report focuses on the GMAW method, specifically MAG welding.A case study has also been performed for the company Wenmec. The task received from the company was to compare the mechanical properties of joints welded with the tube electrode called Nittetsu SM-3A and joints welded with the homogenous electrode called ESAB Aristorod 12.63. Both types of weld joint were welded with the MAG method with an Argon based shielding gas with 18% CO2.

During this master thesis, wear and friction properties for the high-temperature alloy Kanthal APMT were studied. The results were also compared to 253MA. The initial tests showed, among other things, that the surface fineness of the muffle tubes matters in real applications like conveyor belts. A 253MA-sample wear-tested against a 253MA-tube showed lowest wear at 900°C while a pre-oxidized APMT-sample wear-tested against a APMT-tube had the lowest mean value of the friction force at 1100°C, compared to all other tests..

AbstractIn the fall of 2003 a project was started in the Swedish building sector that is called BASTA (the building sectors’ termination of especially harmful substances). The project is operated by the building companies NCC, Skanska, PEAB and JM, the Swedish Building Industry and the Swedish Environmental Institute IVL. The purpose of the project is to create a common environmental assessment system for the entire building industry and with the help of this system phase out the use of especially harmful properties from building products.In a large sense BASTA works like this; On the BASTA web site there is a database, to which a supplier can register the company and the company’s products. Only those products with a substance content that fulfil the demands of the BASTA system, is to be registered. As it is the supplier himself that carries out the registration of the company and the company’s products to the system, the BASTA-organisation annually controls that the companies that are registered in the database, fulfils BASTA’s demands.Since NCC is one of the companies that operates BASTA, BASTA is probably going to be the environmental assessment system that is recommended for the company in the future.

A new curriculum, entailing news for teachers as well as students, was implemented in 2011. Among other things History has been given a more prominent position in that every student will now study the subject. Can this decision lead to history being used more in the future?The aim of this thesis is to study the new curriculum, Gy11, as well the Lpf94 and Lgy70, based on Klas-Göran Karlsson´s typology where the use of history is divided into seven different categories. I will analyze the curricula, looking at what different uses of history that can be discerned as well as what changes have been made over time.

Studies show that 10-15 percent of Sweden's population, 65 years or older are estimated to have depression or depression symptoms. The symptoms of depression among elderly people are less than symptoms of young people. This could cause that elderly people with depression are not always discovered. Studies show that elderly people who live in residential homes show more signs of depression than elderly people living at home. If elderly people live in a supporting environment, can it prevent that a depression developed.The prevention of depression among elderly people is a topic that is not discussed among previously research.

The purpose of this Master's thesis is to find possible explanations of variation in light scattering in a fine paper. Samples were collected from each second tambour during a time period of two weeks from a paper machine at MoDo Paper, Husum. Two data sets, consisting of 20 and 95 observations, were selected for extensive analysises of tensile and structual properties. The data was evaluated with multivariate data techniques using the programs Simca and Extract. The results of PCA- and PLS- analysises pointed out 3 of 52 variables as important for the variations in light scattering.

AbstractIn the fall of 2003 a project was started in the Swedish building sector that is called BASTA (the building sectors’ termination of especially harmful substances). The project is operated by the building companies NCC, Skanska, PEAB and JM, the Swedish Building Industry and the Swedish Environmental Institute IVL. The purpose of the project is to create a common environmental assessment system for the entire building industry and with the help of this system phase out the use of especially harmful properties from building products.In a large sense BASTA works like this; On the BASTA web site there is a database, to which a supplier can register the company and the company’s products. Only those products with a substance content that fulfil the demands of the BASTA system, is to be registered. As it is the supplier himself that carries out the registration of the company and the company’s products to the system, the BASTA-organisation annually controls that the companies that are registered in the database, fulfils BASTA’s demands.Since NCC is one of the companies that operates BASTA, BASTA is probably going to be the environmental assessment system that is recommended for the company in the future.

A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst.The titania-supported catalyst did not only show higher stability than alumina, but also presented a different cause of deactivation, carbon formation. In addition, a kinetic model was obtained for the titania-supported catalyst, and a study of the effect of different operating conditions (temperature, composition and partial pressures of synthesis gas and water) on the deactivation rate and carbon formation of this catalyst was performed.

Master thesis studying the use of multimedia on CD-ROM in a library setting by analysis ofqualitative interviews with nineteen persons.The thesis relates the study to some relevant issues in human-computer interface (HCI) researchand to the commercial market for multimedia CD-ROM products. Three main types ofuse were described by the persons interviewed: recreational, information seeking and usingmultimedia to learn more about using computers. Children and young people interviewed mademost use of the multimedia provided, whereas adults thought it to be less valuable as a sourceof knowledge for them personally.HCI research shows various results of using multimedia for educational purposes. Thecommercial market is dominated by American products which can have a negative effect onthe use of multimedia in Swedish public libraries..

What is creativity? Why is it important? How can you stimulate pupils to becomemore creative? These are some of the questions that are studied in this thesis.The discussion is focused on programming as the medium of creativity and theresult is a setup for a course book that teaches programming at the same time asit makes the reader more creative. The results are based on literature study aswell as observations and interviews with teachers and pupils from three differentschools in Stockholm, Sweden. The study shows that gets more important everyday as more and more jobs are replaced by computers and we live in an age ofabundance. The teachers would like the pupils to be more creative but don?tknow how achieve that at the same time as they have to teach them everythingthat they are supposed to know when the course ends..

AbstractThis act is about how five children with dyslexia consider and understands their diagnosis. It is also about their self-image, future sights and about how their school life is compared with before they got their diagnosis. The study is implemented autumn 2011 on a medium-sized school in central Sweden. The survey was implemented through interviews with the five children, of which four was girls and one was a boy. The study shows that the children understand their dyslexia relatively well, but that they experience that it is bothersome to live with dyslexia.

Small business enterprises have escalated in Sweden during the last decade. However, new established companies are struggling to maintain their selves during the startup process and according to a survey from Tillväxtanalys, only 68 % of startup companies from 2008 were still active three years later. One of the main reasons is lack of capital and the most common approach to finance companies is to apply for a bank loan. In other words, commercial banks are of great importance for new businesses. Although, the problem arises when there is no previous history from the new businesses that the bank could base its credit assessment on.

This masters thesis is a study of how the expression quality literature is used in widespread newspapers and magazines. Wittgensteins idea of language games is used as a theoretical starting point. The analysis of 37 articles draws a picture of five language games that are called; the taking over, the polarising, the example giving, the gender critical and the ironic language game. The expression that quality literature is most often put in relation to is popular literature. The line between the two is sometimes distinctly drawn in the articles and sometimes quite vague.

The purpose of this study is to use a qualitative approach to get an understanding of what is expected of social workers targeted towards women managers in social services. Nine social workers were interviewed. The empirical data was then analyzed on the basis of gender theory. Respondents did not see their supervisor as a manager but more as a social worker with special tasks. Our empirical data indicates that there is a strong belief that men and women possess different properties.

Almost every commercial in television nowadays aim to sell a product or service. This researchpresents two big actors in the grocery chain and their respective commercials. The two actors thatare presented in this research are Lidl and Coop. Both Lidl and Coop are among the largest grocerychains in Sweden. By examine two commercials from each company we aim to find how theircommercials are structured.