Search for dissertations about: "drive"

Showing result 1 - 5 of 834 swedish dissertations containing the word drive.

  1. 1. Licence to drive : the importance of reliability for the validity of the Swedish driving licence test

    Author : Susanne Alger; Hanna Eklöf; Anna Sundström; Peter Nyström; Umeå universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Driving licence tests; driver s licence; driving test; theory test; licensing test; interrater reliability; classification consistency; examiner agreement; classification accuracy; förarprov; körprov; kunskapsprov; reliabilitet; validitet; bedömare; didactics of educational measurement; beteendevetenskapliga mätningar;

    Abstract : Background: The Swedish driving licence test is a criterion-referenced test resulting in a pass or fail. It currently consists of two parts - a theory test with 65 multiple-choice items and a practical driving test where at least 25 minutes are spent driving in traffic. READ MORE

  2. 2. The drive for change : putting the means and ends of sport at stake in the organizing of Swedish voluntary sport

    Author : Cecilia Stenling; Tor Söderström; Josef Fahlén; Eivind Å. Skille; Umeå universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; SAMHÄLLSVETENSKAP; MEDICAL AND HEALTH SCIENCES; SOCIAL SCIENCES; organizational institutionalism; institutional logics; community sport clubs; voluntary organizations; civil society; governance; organizational change; public policy; sport policy; policy implementation; popular movements; institutionell teori; institutionella logiker; föreningsidrott; idrottsföreningar; idrottsrörelsen; folkrörelse; organisatorisk förändring; idrottspolitik; policy-implementering; civilsamhället; tredje sektorn; pedagogik; Education;

    Abstract : The aim of this thesis is to create knowledge on processes of change in the contemporary organizing of Swedish voluntary sport and the systems of meaning at work in these processes. The thesis proceeds from the assumption that the contemporary public sport policy climate is characterized by a pressure on organized sport to change in order for sport to better serve as an implementer of non-sport goals. READ MORE

  3. 3. Fast wave heating and current drive in tokamaks

    Author : Martin Laxåback; Torbjörn Hellsten; Raymond Koch; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Tokamak; JET; ITER; thermonuclear fusion; fast wave; heating; current drive; ion cyclotron resonance; polychromatic; finite orbit widths; RF-induced transport; neutral beam injection; fusion born alpha particles; magnetosonic eigenmodes; parasitic absorption; modelling; weighted Monte Carlo scheme; Fysik; Physics; Fysik;

    Abstract : This thesis concerns heating and current drive in tokamak plasmas using the fast magnetosonic wave in the ion cyclotron range of frequencies. Fast wave heating is a versatile heating method for thermonuclear fusion plasmas and can provide both ion and electron heating and non-inductive current drive. READ MORE

  4. 4. On the Load Distribution and Design of a Chain Drive

    Author : Ingvar Troedsson; Maskinelement; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tension force; tensioner; oscillation; chain drive; vibration; load distribution; Mechanical engineering; hydraulics; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik;

    Abstract : Three methods are presented to calculate the load distribution in a chain drive containing two sprockets and one chain. The rollers, which are in contact with the sprockets, can move along the tooth flanks and their positions are given by force equilibrium. READ MORE

  5. 5. Analysing hybrid drive system topologies

    Author : Karin Jonasson; Industriell elektroteknik och automation; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : In this thesis a simulation model is presented that enables a comparison of different hybrid topologies, with respect to fuel consumption, emissions and performance. The obtained results stress the properties of the different topologies and form a foundation for the choice of hybrid topology. READ MORE