Search for dissertations about: "Flux modulation"

Showing result 6 - 10 of 30 swedish dissertations containing the words Flux modulation.

  2. 6. High-frequency phenomena in small Bi2Sr2CaCu2O8+x intrinsic Josephson junctions

    Author : Holger Motzkau; Vladimir M. Krasnov; Reinhold Kleiner; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; high-temperature superconductivity; Bi-2212; cuprates; intrinsic Josephson junctions; intrinsic tunneling; fluxons; flux-flow oscillator; THz-emission; cavity resonances; polaritons; electrical doping; micro nano-fabrication; fysik; Physics;

    Abstract : In this thesis, the tunneling between individual atomic layers in structures of Bi2Sr2CaCu2O8+x based high-temperature superconductors are experimentally studied employing the intrinsic Josephson effect. A special attention is paid to the fabrication of small mesa structures using micro and nanofabrication techniques. READ MORE

  4. 7. Innate immune modulation in atherosclerosis : with focus on ApoB100 derived danger associated signal 1 (ApoBDS-1)

    Author : Yajuan Wang; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Elevated level of LDL is the most important risk factor for atherosclerosis. ApoB100 is the only unexchangeable protein in LDL particle. Recent reports have shown that native peptides of ApoB100 trigger activation of adaptive immune responses. Whether ApoB100 can activate innate immune response is unknown. READ MORE

  5. 8. Step Edge Junctions in YBa2Cu3O7-δ High-Tc Superconductors

    Author : Huai-ren Yi; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; YBa2Cu3O7-delta; barrier property; Josephson flux-flow transistor; laser deposition; electron-beam lithography; magnetron sputtering; thin film; step edge junction; amorphous carbon;

    Abstract : This thesis describes experimental work on GdBa2Cu3O7-.delta. (GBCO) thin films, YBa2Cu3O7-.delta. READ MORE

  6. 9. A New Measurement of Low Energy Antiprotons In the Cosmic Radiation

    Author : Petter Hofverberg; Mark Pearce; Stephane Coutu; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cosmic radiation; antiprotons; solar modulation; Astroparticle physics; Astropartikelfysik;

    Abstract : New measurements of the antiproton flux and the antiproton-to-proton flux ratio at the top of the atmosphere between 80 MeV and 2.0 GeV are presented. The measurement was conducted from July 2006 to March 2008 with the PAMELA satellite experiment. READ MORE

  7. 10. Multilevel three-phase dual active bridge dc-dc converters - A study on converter modulation, capacitive energy requirement, ZVS boundaries, MFT's winding connections, and core losses

    Author : Babak Alikhanzadehalamdari; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high-voltage power converters; dual active bridge; harmonic analysis; three-phase system; medium-frequency transformer; capacitor sizing; multilevel converters; high power-density systems; transformer winding connection; core loss modeling; dc collector network; soft-switching converters;

    Abstract : The collection and transmission of power from offshore wind turbines using dc have advantages over the ac system. One of the enabling technologies for deploying dc collection is the dc-dc converter that boosts the dc output from the turbine to the medium-voltage dc level of the collection grid. READ MORE