Sökning: "soft mode"

Visar resultat 1 - 5 av 41 avhandlingar innehållade orden soft mode.

  1. 1. Dielectric relaxation spectroscopy of chiral smectic liquid crystals

    Författare :Fathi M. Gouda; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dielectric relaxation measurement; goldstone mode; liquid crystals; ; soft mode; polarisation mode; perpendicular component; tilt fluctuation;

    Sammanfattning : .... LÄS MER

  3. 2. Phase characterization of polar liquid crystals using dielectric spectroscopy

    Författare :Jan Lagerwall; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface-induced phases; soft mode; dielectric spectroscopy; chiral-dopant mixtures; antiferroelectricity; ferroelectricity; Goldstone mode; polar liquid crystals;

    Sammanfattning : .... LÄS MER

  4. 3. On soft-switching isolated AC/DC converters without auxiliary circuit

    Författare :Staffan Norrga; Stefan Östlund; Rik De Doncker; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical power technology; voltage source converter; cycloconverter; isolated converter; medium frequency transformer; soft switching; modulation; commutation; wind power; electric traction; Elkraftteknik; Electric power engineering; Elkraftteknik;

    Sammanfattning : The thesis is concerned with a class of power electronic converter systems that permit bidirectional AC/DC conversion with galvanic separation of the AC and DC sides by a transformer operating at elevated frequency. The systems consist of a capacitively snubbered voltage source converter and a cycloconverter, separated by the mentioned transformer. LÄS MER

  5. 4. Magnetism and Structure of Thin 3d Transition Metal Films : XMCD and EXAFS using Polarized Soft X-Rays

    Författare :Anders Hahlin; Dimitri Arvanitis; Olof Karis; Claus Schneider; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; thin film; xmcd; exafs; anisotropy; coherence; circular polarization; magnetism; Fe; Co; Ag; Fysik; Physics; Fysik; Fysik; Physics;

    Sammanfattning : In this Thesis the magnetic and structural properties of thin epitaxial Fe, Co, and Ni films are discussed. Some of the in-situ prepared samples were used to characterize the degree of circular polarization of the newly installed beamline D1011 at MAX-lab. LÄS MER

  7. 5. The Interactive Dynamics of Regulation : Exploring the Council of Europe's Monitoring of Ukraine

    Författare :Anders Nordström; Jan Hallenberg; Karl Magnus Johansson; Martin Marcussen; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Transnational regulation; Ukraine; Council of Europe; PACE; monitoring; transformation; responsive regulation; European governance; soft law; human rights; Europeanisation; democratisation; Political science; Statsvetenskap; Political Science; statsvetenskap;

    Sammanfattning : In a time when a host of new and untested democracies seek membership in international organisations founded on liberal norms, the question of how to include new members without jeopardizing community values has become of growing concern, particularly as the regulation of practices in sovereign states often relies on soft moral or political commitment rather than on hard legal obligation. The Council of Europe’s (CoE) monitoring of new members after entry represents a soft method of socialising newcomers. LÄS MER