Search for dissertations about: "DRIFT"

Showing result 1 - 5 of 492 swedish dissertations containing the word DRIFT.

  1. 1. Drift-Type Waves in Rotating Tokamak Plasma

    University dissertation from Uppsala : Institutionen för astronomi och rymdfysik

    Author : Elina Asp; Uppsala universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Space and plasma physics; fusion; plasma; tokamak; rotation; drift; ship; ITG; TE; Landau; Te Ti; hot-electron; confinement; stiffness; Weiland; Rymd- och plasmafysik; NATURAL SCIENCES Physics Geocosmophysics and plasma physics Space physics; NATURVETENSKAP Fysik Geokosmofysik och plasmafysik Rymdfysik; Space and Plasma Physics; rymd- och plasmafysik;

    Abstract : The concept of energy production through the fusion of two light nuclei has been studied since the 1950’s. One of the major problems that fusion scientists have encountered is the confinement of the hot ionised gas, i.e. the plasma, in which the fusion process takes place. READ MORE

  2. 2. Drift waves in advanced tokamak plasmas

    University dissertation from Uppsala : Institutionen för astronomi och rymdfysik

    Author : Ansar Mahmood; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; linear instabilities; tokamaks; Drift waves;

    Abstract : .... READ MORE

  3. 3. Drift and Mirror Modes in Magnetized Plasmas

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ingmar Sandberg; Uppsala universitet.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astronomy; tokamak plasma; drift waves; space plasma; mirror instability.; Astronomi; NATURAL SCIENCES Physics Astronomy and astrophysics; NATURVETENSKAP Fysik Astronomi och astrofysik; Space and Plasma Physics; rymd- och plasmafysik;

    Abstract : Low frequency plasma instabilities driven by plasma inhomogeneity and velocity anisotropies are major candidates for the explanation of various phenomena observed in fusion and space plasmas. For low-β fusion plasma, the influence of plasma rotation and finite ion temperature on the structure and the type of toroidal drift eigenmodes in tokamaks is investigated rigorously, including the effects induced by the toroidal geometry such as the coupling mode, the radial variation of plasma rotation velocity and the magnetic shear. READ MORE

  4. 4. Prognostics and Health Management of Engineering Systems for Operation and Maintenance Optimisation

    University dissertation from Luleå : Luleå University of Technology

    Author : Madhav Mishra; Luleå tekniska universitet.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Prognostics and Health Management PHM ; Diagnostics; Prognostics; Bayesian; Hierarchical; L10; Prediction; Bearing; Li-ion battery; RUL; Particle filter; Model-based; Data-driven; Algorithms; Railway track geometry; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : Prognostics and health management (PHM) is an engineering discipline that aims to maintain system behaviour and function and ensure mission success, safety and effectiveness. Prognostics is defined as the estimation of remaining useful life. READ MORE

  5. 5. Salmonid behaviour under winter conditions

    University dissertation from Karlstad : Karlstads universitet

    Author : Johan Watz; Karlstads universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; climate change; drift; energy budget; foraging; grayling; ice cover; lotic; metabolic rate; predation; salmon; stream; stress; temperature; trout; Biology; Biologi;

    Abstract : Winter conditions are believed to play an important role in the population dynamics of northern temperate stream fish, challenging the ability of fish to physiologically and behaviourally adapt. Climate change is predicted to increase both mean temperature and temperature fluctuations, especially during winter, leading to dynamic environmental conditions in terms of river ice production and flow. READ MORE