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  • 1980-1984  (3)
  • 82.50  (2)
  • Optimum stimulus frequency  (1)
  • [abr] GSL; glycosphingolipid
  • 1
    Electronic Resource
    Electronic Resource
    CO2-laser isotope separation of tritium with pentafluoroethane-T (C2TF5) (1982)
    Springer
    Applied physics 28 (1982), S. 341-348 
    Details
    ISSN: 1432-0649
    Keywords: 82.50 ; 82.40 ; 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotope separation of tritium by CO2 laser-induced multiphoton dissociation (MPD) of C2TF5 is reported for the first time. The MPD spectrum obtained for C2TF5 comprised a broad peak at about 940 cm−1 where C2HF5 was nearly transparent. The unimolecular dissociation of C2TF5 was induced with much lower laser fluence than that for CTF3, another working molecule we proposed for laser isotope separation of tritium. The mechanisms and kinetics of the dissociation of C2TF5 and C2HF5 were investigated under various experimental conditions: laser frequency, pulse energy, pulse duration, tritium concentration, sample pressure, buffer gas pressure and irradiation geometry. Single-step separation factors exceeding 500 were achieved with the most efficientP(20) line in 00o–10o0 transition at 944.2 cm−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00686364
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Laser isotope separation of tritium from deuterium: CO2-laser-induced multiphoton dissociation of C2TF5 in C2DF5 (1983)
    Springer
    Applied physics 32 (1983), S. 33-34 
    Details
    ISSN: 1432-0649
    Keywords: 82.50 ; 82.40 ; 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotope separation of tritium from deuterium in heavy water was attempted by CO2-laser-induced, highly-selective multiphoton dissociation of C2TF5 present in C2DF5. Single-step T/D separation factors exceeding 3000, 1000, and 500 were attained, respectively, for the first time with CO2 laser 10P(34) 931.0 cm−1 at 10, 20, and 30 Torr pentafluoroethane pressures at −78 °C (i.e., equivalent to 15, 30, and 45 Torr at room temperature).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688772
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Response of the visual system evoked by an alternating current (1983)
    Springer
    Medical & biological engineering & computing 21 (1983), S. 47-50 
    Details
    ISSN: 1741-0444
    Keywords: Alternating current stimulation ; Diagnosis of eye diseases ; Electrically evoked response (e.e.r.) ; Electroretinogram (e.r.g.) ; Optimum stimulus frequency ; Pigmentary retinal dystrophy (retinal disease) ; Retinal dystrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Alternating current stimulation of the eye generates an occipital electrically evoked response (a.c.-e.e.r.) of which the frequency characteristic shows a monophasic pattern for which the optimum stimulus frequency for evoking a maximum response is 18 Hz. A.C.-E.E.R. is a very useful tool for making a diagnosis of pigmentary retinal dystrophy and is different from the e.r.g. in that it is not affected by diseases of the optical system such as strong refractive anomalies or vitreous opacities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02446405
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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