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  • 1
    Electronic Resource
    Electronic Resource
    Improvements in corrosion resistance of Tb-Fe thin films (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 510-511 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Electrochemical corrosion of Tb-Fe films was studied by immersion in a NaCl solution. The corrosion resistance was improved by adding Al, Cr, Hf, Mo, and/or Ti to Tb-Fe. The improvement mechanism, which was studied by transmittance change measuring, microscopic observation, and electron probe microanalysis, is the concentration of the additive metals and formation of passive states by the metals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.99401
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  • 2
    Electronic Resource
    Electronic Resource
    Erasable optical memory media with thermoplastic/absorbent double layer (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 1777-1778 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A thermoplastic/absorbent double layer type optical memory was developed. The thermoplastic was monodispersed polystyrene of which the molecular weight was 800–110 000, and the absorbent was Cu phthalocyanine. The erasing properties were dependent on the molecular weight. The medium was best when the molecular weight was 2000 and the record/erase repetition could be more than 350. The dye addition to the polystyrene increased the recording sensitivity but decreased the maximum limit of record/erase repetition, so the dye content was preferable to be less than 10 wt. %.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.99623
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Oscillatory convection in a dilute3He-superfluid4He solution (1985)
    Springer
    Journal of low temperature physics 59 (1985), S. 305-345 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Convective instabilities in a rectangular, unity-aspect-ratio Rayleigh-Bénard cell with a solution of 1.46%3He in superfluid4He have been studied in the temperature range 0.70–1.05 K, with a corresponding Prandtl number range of 0.045〈σ〈0.15. The onset of stationary convection is much like that in a classical, one-component fluid. The oscillatory instability is studied by using an extremely sensitive local temperature probe. It is found that the total heat transport efficiency is suppressed by the oscillations in the entire range of Prandtl number we have studied. The local temperature probe indicates a striking difference in the oscillatory amplitude when the sense of rotation of the convective rolls is reversed. The magnitude of the convective velocity is deduced from both the initial slope of the Nusselt number near the onset of the stationary convection and the frequency of the oscillations. Determinations of the temperature dependence of the convective velocity using these two methods agree very well. The observed behavior of the oscillatory frequency and onset condition supports the theory of oscillatory convection for a classical, low-Prandtl-number, one-component fluid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00683781
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Identification of fetal hemoglobin in blood stains by high performance liquid chromatography (1989)
    Springer
    International journal of legal medicine 102 (1989), S. 437-444 
    Details
    ISSN: 1437-1596
    Keywords: Fetal hemoglobin, identification in blood stains ; Blood stains, identification of fetal hemoglobin ; Fetales Hämoglobin, in Blutspuren ; Blutspuren, Nachweis von fetalem Hämoglobin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Es wurde eine neue Methode zur Identifizierung von fetalem Hämoglobin (Hb F) in Blutspuren mit der umgekehrten Phase-Hochleistungsflüssigkeitschromatographie durchgeführt. Die Unterscheidung zwischen fetalen Blutspuren und denen von Erwachsenen erfolgte aufgrund der Existenz der Spitzen der γ-Ketten von Hb F. In den Chromatogrammen der untersuchten Blutspuren von Erwachsenen traten fast keine γ-Ketten auf. Diese Methode ermöglichte ferner die Bestimmung des Hb F-Wertes mit dem Flächenverhältnis der Globin-Ketten auf den Chromatogrammen. Hb F-Werte der sechs Fälle von Nabelschnurblutspuren auf dem Filterpapier lagen zwischen 81.1% und 91.3%. Die vorliegende Untersuchung zeigt, daß sich der Hb F-Wert für mindestens 12 Wochen nicht ändert. In der Praxis der Rechtsmedizin ist diese Methode im Hinblick auf die Einfachheit, hohe Empfindlichkeit, Schnelligkeit und Zuverlässigkeit sehr wertvoll.
    Notes: Summary A new method for the identification of fetal hemoglobin (Hb F) in blood stains by reverse-phase high performance liquid chromatography is described. Differentiation between fetal and adult blood stains is based on the existence of γ-chain peaks which are characteristic of Hb F. Very few γ chains appeared on chromatograms of all the adult blood stains examined. The level of Hb F could be determined by measuring the total of chromatogram γ-globin chain areas, and expressing it as a percentage of total Hb. Levels in six cord blood stains on filter paper ranged from 81.1% to 91.3% and remained constant for at least 12 weeks. This method is of great value for its simplicity, sensitivity and speed, and most importantly for its reliability in the field of forensic medicine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00204074
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    Paper (German National Licenses)
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