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12990 Uppsatser om Evidence-based methods - Sida 64 av 866

PRAKTISK BESTÄMNING AV KLÄMKRAFT OCH FRIKTION I SKRUVFÖRBAND

This report reflects an examination work performed for Getrag All Wheel Drive AB during the spring of 2005. Among the companies range of products there exists some concern regarding the amount of clamping force and friction on bolted joints caused by the assembly torque.The aim of this project has been to determine if there is a simple way in which to identify and then practically apply testing methods for clamping force and friction through utilization of existing testing equipment.Three separate methods of clamping force and friction determination have been tested in rear drive unit, RDU, at a 30 Nm assembly torque. A fourth and final method, screw elongation with ultrasound, has been used as reference. The methods are:?Torque-Tension test.?Screw elongation with micrometer.?Joint stiffness test.?Screw elongation with ultra sound for reference.The results from tests can be viewed in table below.MethodTorque-TensionMicrometerCs=318 kN/mm Assembled with torque wrenchMicrometerCs=318 kN/mm Assembled on lineUltra-soundCS=311 kN/mm Ultra- soundCS=318 kN/mm Joint stiffnessTheoreticalClamping force-21,8 kN17,6 kN17,3 kN17,6 kN17,1 kN17,3 kNFriction-0,110,1470,1530,1470,1520,149.

Gruvrätten vid Stora Kopparberget 1641-1682 : en undersökning över rannsakade brott och utdömda straff

The purpose of this essay is to examine and explain how the Swedish mining court of Stora Kopparberget (the Great Copper Mountain) implemented its judicial legislation between 1641-1682. Questions are asked about which counts of indictments the court tried, which sentences they handed out, in what quantities and how these results looks in comparison with other contemporary courts. The index cards of the court judicial protocols are the primary source of information. The methods are those of quantity- and comparative analysis.The results show that theft of copper ore was the most common crime ransacked by the court. Other common crimes were (in order): sin of omission, transgression of work directions, fights, slander and disdain, trade of stolen ore, failing appearance in court etc.Fines were by far the most common sentence followed by shorter imprisonments, gauntlets, loss of right to mine possession, twig beating, loss of work, penal servitude, banishment, ?wooden horse riding? and finally military transcription.

Skolsituationen för elever med betyget MVG i matematik : En fallstudie av fyra elever i grundskolans årskurs 9

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.

Sommarhögskolans verksamhet : Ur ett learning-by-doing och elevperspektiv

This paper is written to take a close look at teaching methods used at the Summer Academy (SHS), which is held at Södertörns Högskola in Stockholm. SHS is a subdivision of the institution of teaching education, which annually, during summertime, offers an eight-day program for pupils between 13-15 years of age, from different schools located in socio-economically disadvantaged suburbs of Stockholm. The intention of SHS is to give the participating pupils an insight into higher education, especially that of university. The purpose of the activities, such as field trips, guided tours and corporate visits, is to make pupils aware of their own responsibility for their educational situation through different methods of knowledge transfer, to diversify the means of the education, and to bring awareness to the array of possibilities which they have access to within the Swedish system of tertiary education.The study is based on six deep-interviews, three with pupils and three with student mentors. Together with 131 surveys from the course given during the summer of 2014, and theories of John Dewey on ?Learning-by-doing?, the results show that pupils participation in SHS give them a better understanding for, and knowledge about their own educational responsibility.Another question this paper seeks to address is how significantly the SHS program is changing the pupil?s experience of education in general and their view upon higher education specifically.

Kunskap som process eller produkt? : En kvalitativ intervjustudie om dokumentation i förskolan

According to the curriculum for the Swedish preschool system, children?s development and learning should be documented and analyzed in order to evaluate and develop the preschool quality. Social criticism is directed to some of the methods of documentation for assessing the children´s individual knowledge development. The purpose of this study was to examine how, what and why some teachers use documentation in preschool. I wanted to examine which methods preschool teachers used when they documented the children and what they focused on.

Nätmobbning - vem bär ansvaret? : En kvalitativ studie om lärares syn på ansvarsfördelningen mellan föräldrar och lärare vid förekomsten av nätmobbning

The phenomena of cyber bullying is relatively new, but it is now more prevalent than ever as children today have access to the internet on a daily basis, in school as well as at home. Although cyber bullying is an increasing problem in today?s society, there seem to be few guidelines for teachers to follow when using the internet with their students in school. The purpose of this study is to investigate who, according to six teachers, has the responsibilities revolving cyber bullying ? teachers or parents.

Visualisering av marknadsstatistik

The purpose of this master thesis was to explore and develop prototypes for visualization of trade statistics in a market surveilance application. In such an anapplication a large amount of information is processed. This information is then summarized and presented to the market surveillance staff. The practical part of this thesis was done at Scila AB in Stockholm. Three prototypes were developed based on modern visualization methods.

Spelets språk : Hur används det engelska språket i onlinespel?

This study aims to research how upper secondary pupils interact while playing online games, how the English language is used within each game and what attitudes these pupils have towards language in school and online gaming respectively. Online gaming sessions have been recorded to analyze the methods of interaction by which people communicate with each other while playing online games. Furthermore, the text-based communication occuring in online gaming is analyzed on a lexical level to find words not defined in legitimate English dictionaries. Interviews with students have been conducted to understand the attitudes held by students towards language in school and online games..

Bokjuryn. Barnbibliotekariers syn på och arbete med det nationellt läsfrämjande projektet

The aim with this thesis is to examine how childrens librarians apprehend and use the nationally initiated reading project Bokjuryn as an instrument in their work. The main question is as follows: How does Bokjuryn work related to the way public libraries pass on literature? Two questions are asked: How does the childrens librarians use Bokjuryn as an instrument and how do they motivate their work with it? and How do the childrens librarians view the reading project Bokjuryn as a method of passing on literature? The study is based on qualitative interviews with five childrens librarians. As a theoretical starting-point Jofrid Karner Smidt´s work about mediation of literature has been used. A model has been created and used based on Louise Limbergs analyses of the differences between school libraries and public libraries to analyse the result of the interviews together with other literature.

?Hänga och må bra eller ta sin bok och dra?. Bilden av biblioteket PUNKTmedis efter ungdomsanpassningen.

The aim of this paper is to examine the youth library PUNKTmedis' work methods to adapt itself to the youth. Improved communication with this user group is the starting point for the new work methods. We have chosen to view the increased cooperation between the library and the youth as an adjustment to market demands. We have noticed the possible existence of an antagonism between on the one hand the traditional role of the public library of adult education and on the other hand an adjustment to the market demands. Adult education and the adjustment to market demands is seen as contributing to the image of PUNKTmedis.

Ett relationsanarkistiskt ställningstagande - en undersökning av subjektspositionering inom relationsanarki.

This essay aims to examine what subject positions are possible within the discourse of relationship anarchy. Through semi-structured interviews with four people who define themselves as relationship anarchists I've made a discourse analysis to determine how these relationship anarchists explain what, in the discourse they?re in, is described as an relationship anarchistic way of being, what isn?t and how they relate to this. Relationship anarchy is described as an ideology based on freedom. It is about the right to define their relationships as they like, as something constantly changing and that does not hold a specific value based on its label.

Testplattform för nätverks-RTK i syfte att ge en rikstäckande GPS-tjänst med centimeternoggrannhet

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Generella riktlinjer vid distribuerad Scrum

Today many companies are global and can exist all over the world. It is more common that projects are conducted in different locations, from various cities in a country to nations in different parts of the world. To manage projects both traditional practices such as the Waterfall method and new flexible methods known as agile methods are used. How is the process affected when a project is distributed, when the team is scattered in different places? This makes it difficult to create a good project, something we will discuss and try to find solutions for.

Gamers and Game Design: Incorporating Users in the Design Process

This paper deals with the difficulties of applying user-centered design practices as an independent developer, based on the visualization of a game concept in the form of a prototype. The aim is to evaluate the usability of user-centered design practices, specifically in the field of games development. Throughout this paper, I will give an account of the methods used for testing, as well as a review of previous research done in this field of study. Finally, I will end with a discussion regarding the pros and cons of user-centered design, as well as some thoughts about its importance in similar projects..

Hälsofrämjande budskap i en livsmedelsbutik : - kunders uppfattningar

ABSTRACTWångdahl, J. (2006). Hälsofrämjande budskap i en livsmedelsbutik- kunders uppfattningar. C-uppsats i Folkhälsovetenskap. Örebro, Hälsovetenskapliga institutionen.Obesity and being overweight are on the increase in Sweden which makes work in the area of health promotion very important.

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