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  • 1985-1989  (1)
  • 1965-1969  (1)
  • 1950-1954
  • Catecholamines  (1)
  • GaP light emitting diodes  (1)
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Years
  • 1985-1989  (1)
  • 1965-1969  (1)
  • 1950-1954
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 7 (1986), S. 147-154 
    ISSN: 1572-9559
    Keywords: GaP light emitting diodes ; ir-detection ; saturation ; response time
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Saturation of extrinsic photoconductivity in GaP:N(Zn, Te) diodes could be achieved by excitation with a TEA-CO2-laser. At wavelengths in the 10 μm range intensities of several 100 kW/cm2 being near the damage threshold were applied. Carrier lifetimes of 60 ps at 4.2 K and 200 ps at 77 K could be estimated. The only conceivable mechanism explaining these short time constants is the capture of infrared excited holes by ionized shallow acceptors in the highly compensated p-side of the diode.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Clinical and experimental medicine 151 (1969), S. 163-174 
    ISSN: 1591-9528
    Keywords: Myocardial metabolism ; Oxyfedrin ; Catecholamines ; Myokardstoffwechsel ; Oxyfedrin ; Katecholamine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Einfluß von Oxyfedrininfusionen auf die arteriellen Konzentrationen von Glucose, Lactat, Pyruvat, Freien Fettsäuren, Acetacetat, 3-Hydroxybutyrat, Neutralfetten und Glycerin sowie die Aufnahme dieser Substrate in das Myokard wurde an Hunden mittels Sinus coronarius-Katheterisierung untersucht. Während die Freien Fettsäuren und die Ketonkörper einen starken arteriellen Anstieg sowie auch eine vermehrte Extraktion durch das Myokard zeigten, kam es zu einem arteriellen Abfall und verminderter myokardialer Aufnahme von Lactat und Pyruvat. Die unterschiedliche Wirkung von Oxyfedrin und Katecholaminen auf den Myokardstoffwechsel wird diskutiert.
    Notes: Summary The influence of Oxyfedrin on the arterial levels and the myocardial extraction of glucose, lactate, pyruvate, free fatty acids, acetoacetate, 3-hydroxybutyrate, esterified fatty acids and glycerol has been studied by coronary sinus catheterization on dogs. The arterial levels and myocardial extraction of free fatty acids and ketone-bodies were markedly increased, the arterial concentration and myocardial uptake of pyruvate and lactate were found to be decreased. The different effect of Oxyfedrin and catecholamines on myocardial metabolism has been discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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