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  • Electronic Resource  (4)
  • 1990-1994  (4)
  • 1980-1984
  • 1991  (4)
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  • Electronic Resource  (4)
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  • 1990-1994  (4)
  • 1980-1984
Year
  • 1
    Electronic Resource
    Electronic Resource
    Photoluminescence spectra of p-GaSe doped with Cd (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 7936-7938 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Impurity levels in Cd-doped GaSe have been studied by using photoluminescence (PL) measurements. The PL spectra at 77 K are dominated by three new emission bands at 1.95, 1.75, and 1.62 eV. The PL intensity and the peak energy of the 1.95 and 1.62 eV emission bands are measured as a function of the temperature. It is shown that the 1.95 eV emission band is due to the transition between the conduction band and the acceptor level at 0.18 eV above the valence band. The 1.62 eV emission band is caused by the transition from the donor level at 0.37 eV below the conduction band to the acceptor level at 0.13 eV above the valence band. The PL intensity increases with increasing Cd concentration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347488
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Millimeter-wave phase-imaging interferometer for the GAMMA 10 tandem mirror (1991)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 62 (1991), S. 2857-2861 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A millimeter-wave phase-imaging interferometer has been developed for the study of density profiles of the GAMMA 10 tandem mirror. The interferometer uses a 70-GHz klystron oscillator and a quasi-optical transmission system. The probe beam is expanded so as to fill an orthogonal view of a plasma cross section. The view is imaged onto a detector array. The detector array consists of beam-lead GaAs Schottky barrier diodes bonded to antennas fabricated using photolithographic techniques on a fused-quartz substrate. Two types of antennas, bow-tie and Yagi–Uda antennas have been used in order to provide an effective matching to millimeter-wave beams, and compared for the performance of an imaging system. The interferometers have been applied to the central-cell and plug-cell plasmas of GAMMA 10.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142172
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Immunohistochemical localization of metallothionein in the eye of rats (1991)
    Springer
    Histochemistry and cell biology 95 (1991), S. 535-539 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In order to elucidate possible physiological roles of metallothionein (MT), we have studied immunohistological localization of MT in the eye of the rat, using an avidin-biotin peroxidase complex method. As a result, strong MT immunostaining was observed in the epithelium of the lens and cornea. In the retina, considerably strong MT immunostaining was observed in the pigment cell layer while the nerve fiber layer and inner plexiform layer showed weak MT staining. Glial cells in the optic nerve were found to have marked MT staining. The present result is consistent with the hypothesis that MT may be involved not only in activation of zinc enzymes and cell proliferation through supply of zinc ions, but also in a protective mechanism in the blood-retina barrier.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266738
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    E b z of NZW mice is identical with E b u of B10.PL mice (1991)
    Springer
    Immunogenetics 33 (1991), S. 413-414 
    Details
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00216704
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    Paper (German National Licenses)
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