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  • 1975-1979  (6)
  • 1
    Electronic Resource
    Electronic Resource
    Interferometric Study of Forced Convection Mass Transfer Boundary Layers in Laminar Channel Flow (1979)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 18 (1979), S. 97-108 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i160070a002
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Characteristics of the displacement of the penumbral bright grains of sunspots (1976)
    Springer
    Solar physics 48 (1976), S. 101-102 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is confirmed that the penumbral bright grains are moving towards the sunspots umbra. At the umbra-penumbra boundary their horizontal velocity is about 0.5 km s−1 and their displacement is inclined downwards with an angle of 5° to 20°.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00153335
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Morphological properties and origin of the photospheric facular granules (1977)
    Springer
    Solar physics 52 (1977), S. 249-262 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract From time series of high resolution photographs, morphological properties of the photospheric facular granules were derived. The facular granules are cells of the common granular pattern, brighter than the normal granules when seen between cos θ = 0.6 and the limb. Their apparent diameter, which decreases towards the limb, is smaller than that of the normal granules: 0″.65 and 1″.25 respectively at cos θ = 0.55; their lifetime is 25 min but their ‘bright stage’ lifetime is only 15 min; they are visible closer to the limb than the normal granules: 1″.2 compared to 2″–5″; the brightening of the facular granules occurs at a faster rate than their fading. From the great similitude of both morphological properties and temperature models of facular and normal granules, it appears possible that the photospheric facular granules are convective cells modified by the presence of a magnetic field of some hundreds Gauss.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00149643
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The fine structure of light-bridges in sunspots (1979)
    Springer
    Solar physics 61 (1979), S. 297-300 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract High resolution photographs obtained at the Pic du Midi Observatory show that there are three types of sunspot light bridges according to their morphological structures: the photospheric ones, the penumbral ones and the umbral ones. Consequently there are no specific structures in light bridges; it results that they should not be due to specific physical properties. Properties of the fine structure of a penumbral light bridge are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00150414
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    A model of photospheric faculae deduced from white light high resolution pictures (1975)
    Springer
    Solar physics 45 (1975), S. 105-114 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract High resolution pictures (about 0″.3) of photospheric faculae near the solar limb have been obtained with the Pic du Midi 50 cm refractor; their granular structure then clearly appears. The microphotometric study of these facular granules shows that the ratio of their intensity to the photospheric intensity, I f/I ph (cosθ) reaches a maximum near cosθ = 0.3 and then decreases towards the limb. The values of this ratio have been corrected with a most likely spread function. Then a temperature model of a facular granule is obtained: with respect to the neighbouring photosphere, this granule appears as a photospheric ‘hot cloud’ which does not extend high in the solar atmosphere (thickness 100 km above τ5000 = 1). The temperature excess is 750K at maximum. This hot region is located over a layer which is cooler than the normal photosphere at the same level. Another hot region might extend above the photospheric ‘hot cloud’, possibly up to the chromosphere. This photospheric facula model which is confined to the lower photosphere seems to indicate that this phenomenon is different from the photospheric network which is visible up to the lower chromosphere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00152221
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A method for the determination of some organophosphorus insecticides in human serum (1978)
    Springer
    Chromatographia 11 (1978), S. 220-222 
    Details
    ISSN: 1612-1112
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A simple and rapid method for the determination of organophosphorus insecticides in serum of poisoned patients is described. The compounds are extracted with benzene and the extraction residue is gas chromatographed on a glass capillary column with alkali flame ionisation detection. Concentrations from 2 ng cm−3 can be determined. As an example, results of the analysis of serum samples of three patients, poisoned with parathion and methylparation, are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02302397
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    Paper (German National Licenses)
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