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  • Superfluidity and superconductivity  (2)
  • 548  (1)
  • Ca++-binding sites  (1)
  • Gefügekunde der Gesteine  (1)
  • 2010-2014  (3)
  • 1995-1999
  • 1975-1979  (1)
Collection
Keywords
Publisher
Language
Years
  • 2010-2014  (3)
  • 1995-1999
  • 1975-1979  (1)
Year
  • 1
    facet.materialart.
    Unknown
    High-Resolution Imaging of Texture and Microstructure by the Moving Detector Method (2010)
    Details
    Publication Date: 2021-03-29
    Description: In order to describe texture and microstructure of a polycrystalline material completely, crystal orientation g={?1F?2} must be known in all points x={x1?x2?x3} of the material. This can be achieved by locationresolved diffraction of high-energy, i.e. short-wave, X-rays from synchrotron sources. Highest resolution in the orientation- as well as the location-coordinates can be achieved by three variants of a detector sweeping technique in which an area detector is continuously moved during exposure. This technique results in two-dimensionally continuous images which are sections and projections of the six-dimensional orientation location space. Further evaluation of these images depends on whether individual grains are resolved in them or not. Because of the high penetration depth of high-energy synchrotron radiation in matter, this technique is also, and particularly, suitable for the investigation of the interior of big samples.
    Description: research
    Keywords: 548 ; VAE 120 ; VKA 200 ; VGA 410 ; Methodik {Strukturgeologie} ; Gefügekunde der Gesteine ; Röntgenanalyse {Mineralogie: Kristallographie}
    Language: English
    Type: article , publishedVersion
    Format: 18 S.
    Format: application/pdf
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    CITATION GEO-LEO
  • 2
    Electronic Resource
    Electronic Resource
    Pinocytosis and locomotion in amoebae (1979)
    Springer
    Protoplasma 100 (1979), S. 33-43 
    Details
    ISSN: 1615-6102
    Keywords: Amoeba proteus ; Ca++-binding sites ; Cytochemical demonstration ; Induced pinocytosis ; Plasma membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Different methods were used to demonstrate the existence of Ca++-binding sites (Ca++-bs) at the plasma membrane ofAmoeba proteus. In pinocytoting animals the number (indicated by the average distanced in nm) and size (average longitudinal axiss in nm) of Ca++-bs at the cytoplasmic surface of the cell membrane were significantly increased (d=162±15;n=41 ands=93±5;n=47) in comparison to controls (d=208 ±21;n=37 ands=59±8;n=45). The ratio of P: Ca obtained by X-ray microanalysis was in the range of 1.5. The differences observed in the two experimental groups of amoebae are explained by conformational changes in the molecular structure and an increased Ca++-permeability of the plasma membrane during induced pinocytosis. Microplasmodia of the acellular slime moldPhysarum polycephalum investigated for comparison were found to have no Ca++-bs at the interior cell surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01276299
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    Paper (German National Licenses)
    Fulltext
  • 3
    facet.materialart.
    Unknown
    Vortex creep down to 0.3 K in superconducting Fe(Te,Se) single crystals (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-01-30
    Description: Author(s): T. Klein, H. Grasland, H. Cercellier, P. Toulemonde, and C. Marcenat We report on a study of the vortex creep in Fe1+δ(TexSe1−x) single crystals (x=0.5 and 0.4) down to 0.28 K (∼Tc/50) and up to μ0Ha=2T. The relaxation of the current density [J(t)] has been measured during 20 hours and the decay of J(t) can be well described by a J(t)∝[ln(t/t0)]−1/μ law. We show that... [Phys. Rev. B 89, 014514] Published Wed Jan 29, 2014
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Thickness dependence of the superconducting critical temperature in heavily doped Si:B epilayers (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-08-13
    Description: Author(s): A. Grockowiak, T. Klein, H. Cercellier, F. Lévy-Bertrand, X. Blase, J. Kačmarčik, T. Kociniewski, F. Chiodi, D. Débarre, G. Prudon, C. Dubois, and C. Marcenat We report on the superconducting properties of a series of heavily doped Si:B epilayers grown by gas immersion laser doping with boron content ( n B ) ranging from ∼3×10 20 cm −3 to ∼6×10 21 cm −3 and thickness ( d ) varying between ∼20 nm and ∼210 nm. We show that superconductivity is only observed for n B va... [Phys. Rev. B 88, 064508] Published Mon Aug 12, 2013
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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    PAPER CURRENT
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