Search for dissertations about: "Alfvén waves"

Showing result 1 - 5 of 18 swedish dissertations containing the words Alfvén waves.

  2. 1. Alfvén Waves and Energy Transformation in Space Plasmas

    Author : Yuri Khotyaintsev; Kalevi Mursula; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Space and plasma physics; Alfvén waves; particle acceleration; ionosphere; magnetopause; magnetic reconnection; Rymd- och plasmafysik; Space physics; Rymdfysik; Space Physics; rymdfysik;

    Abstract : This thesis is focused on the role of Alfvén waves in the energy transformation and transport in the magnetosphere. Different aspects of Alfvén wave generation, propagation and dissipation are considered. The study involves analysis of experimental data from the Freja, Polar and Cluster spacecraft, as well as theoretical development. READ MORE

  4. 2. Allergy, Stress and Sense of Coherence in Families with Children living in accordance with an Anthroposophic Lifestyle

    Author : Jackie Swartz; Frank Lindblad; Thöres Theorell; Johan Alm; Gösta Alfvén; Uppsala universitet; []
    Keywords : Anthroposophic lifestyle; Allergy; Stress; Children; Sense of Coherence; Medicin; Medicine;

    Abstract : Background: Previous studies on anthroposophic lifestyle and allergy show that the children have less risk of developing allergies. All studies so far have been retrospective and have included children in school age. READ MORE

  5. 3. Alfven Waves and Spatio-Temporal Structuring in the Auroral Ionosphere

    Author : Nickolay Ivchenko; KTH; []
    Keywords : dispersive alfrén waves; auroral particle acceleration; ionospheric alfvén resonator; auroral particle acceleration; small scale auroral structure; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : .... READ MORE

  6. 4. Dynamics of Alfvén Waves in Tokamaks

    Author : Robert Nyqvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  7. 5. Waves and instabilities in quantum plasmas

    Author : Shahid Ali; Padma Kant Shukla; Mattias Marklund; Jose Tito Mendonca; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum mechanical effects; dusty plasma; linear and nonlinear waves; instabilities; nonlinear wave interactions; density gradients; magnetoplasmas.; Plasma physics; Plasmafysik;

    Abstract : The study of waves and instabilities in quantum plasmas is of fundamental importance for understanding collective interactions in superdense astrophysical objects, in high intense laser-plasma/solid-matter interactions, in microelectronic devices and metallic nanostructures. In dense quantum plasmas, there are new pressure laws associated with the Fermi-Dirac distribution functions and new quantum forces associated with the quantum Bohm potential and the Bohr magnetization involving electron ½ spin. READ MORE