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4216 Uppsatser om Coupled cluster methods - Sida 21 av 282

Låt det förflutna tillhöra det förflutna : En studie om datorspel, socialt välbefinnande och kunskapsmässig utveckling

This study investigates the effects that commercial computer games have on young individuals social comfort and learning progress. As a systematic study of literature, scholarly articles have been analysed in order to illuminate the positive as well as negative effects on social comfort and learning progress that may come with playing computer games. The social effects have mainly been discussed with role-playing games, such as World of Warcraft, as starting point, while the learning effects have been coupled with strategy games, such as Civilization IV. The study does not simply declare how these games can be good for these factors, but also in what respect computer games may prevent the development of young individuals socials skills and learning progress. The study showed that in spite of perpetual prejudices against computer games in the technological age, computer games might actually be good to use as a tool in order to authorize the development of young individuals regarding learning and social aspects.

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.

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.

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.

Kulturarvet i textilslöjden : En undersökning om hur textillärare i grundskolan använder sig av kulturarvet i slöjdundervisningen

The educational directive for the school subject textile handicraft (slöjd) claim, that the pupils should have knowledge of handicraft traditions from historical and present perspective. Teachers in handicraft, teaching in schools for the first nine years of a child education forwards a cultural heritage. The purpose of this essay is to find out what the teachers opinion is about what constitute the Swedish textile cultural heritage. How the teachers relate to it and how they use it, then teaching. The essay is based on a qualitative method and consists of interviews with teachers.

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.

Val och kompensation : En studie av lärares arbetssätt med materialet ABC-klubben

This study, based on the socio-cultural theory of the book as a mediating tool, examines how four teachers say they work with the reader ABC-klubben. This is done with a focus on how they reason about choosing the level of readers for the pupils and about what compensation, if any, they make for pupils who read the simpler book and therefore miss the more difficult words and expressions. The result shows that all the teachers say that they take the pupils? motivation for and pleasure in reading as an important ground for the decision as to which reader a pupil should use, and that this decision is taken with a focus on the individual. When it comes to compensation for the pupils who read the simpler book, the teachers do not describe consistently focused work on this, but they describe a similar way of working whereby they nevertheless acquaint these pupils with the more difficult book and the harder words and expressions.

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.

Ledföljdsvariation i svenska : Verb, semantik och syntax i samband med lång objektsflytt

The term ?Object Shift? means that a weak object pronoun has been raised to a position to the left of a sentence adverbial. Primarily, there are two positions to which a weak object pronoun can be raised; one of them is called Long Object Shift.In this paper, I primarily deal with finite verb frequencies in sentences with Long Object Shift in Swedish. Also, in order to further define the verbs in these sentences I discuss verb semantic and syntactic valence in relation to the shifted object. Furthermore, I discuss the search methods which have generated sentences with Long Object Shift in written sources in Swedish; an equivalent study has never been done before.

Sjukgymnasters syn på en ny behandlingsmetod med vibrationsträning som exempel: en kvalitativ studie

The aim of the study has been to investigate physiotherapists? view on a new method of treatment in physiotherapy. In this case we have studied Whole Body Vibration training as an example of a new method of treatment. Semistructured interviews were performed with five physiotherapists. The study was carried out as a qualitative content analysis study.

Bibliometrisk kartläggning av det idrottspsykologiska fältet

Objectives: The aim in this thesis has been to generate information relevant for strategic positioning and future evaluations within the scientific field of sport and exercise psychology. This has been done by request, and in collaboration with The Group of Sport and Exercise Psychology at the Institution of Psychology at the University of Umeå.Research questions:  (1) How does the cognitive structure within the field of sport and exercise psychology take shape with respect to research topics in current sport-psychological research, i.e. the research front? (2) How does the social structure within the field of sport and exercise psychology take shape with respect to formal scientific collaboration?Data: 879 articles published between 2008-2011 were used in this study. The population of articles were collected from a set of 5 core journals: International Journal of Sport Psychology, Journal of Applied Sport Psychology, Journal of Sport and Exercise Psychology, The Sport Psychologist, Psychology of Sport and Exercise.

Drama & vägledning : Metoder som speglar livet

This study illustrates how drama methods and career counselling might interact. The aim is to investigate whether drama methods can enhance career counselling methods. Drama is here defined as an umbrella term that includes all forms of action methods used in psychology and education.A literature survey was carried out in parallel with qualitative research interviews. Three professional drama leaders were interviewed separately. This was followed by a group interview with five upper secondary school students, who had all taken a course in drama with a focus on personal development.The findings show that there are common and consistent goals and values between drama and career counselling.

Trafiken till Göteborgs södra skärgård - En annorlunda kollektivtrafik

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.

Relationer och projekt : En studie av det mellanmänskliga i det rationella

Projects are often spoken of in the terms of rational systems. However, some researchers point out the relevance of viewing projects as sets of relationships. Little is published about what aspects of relationships that are important for the managing of projects. We have argued for the necessity of such research. With previous research, our case study and interviews we indentified communication, responsibility, cooperation, togetherness and trust as important relational aspects in projects.The overall perceived success for projects in this case, was increased with the adoption of new agile methods.

Skydd mot yterosion i slänter av finmorän

Slopes in fine till soils are exposed to surface erosion due to rainfall, snowmelt and upland water sources. Large areas of road slopes are therefore covered for surface erosion protection. Preventive methods like ditches and trenches are also being used. Silt tills are particularly troublesome since the water can bring the soil into suspension and cause mudslides. Different methods for erosion protection have been studied in this work, with the emphasis placed on rockfill covering. The need for and the dimensioning of this type of covering has been examined in literature and field studies.

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