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  • LUNAR AND PLANETARY EXPLORATION  (1)
  • polymer  (1)
  • densimeter
  • vibrating wire
  • 1980-1984  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    Injection moulding of thermoplastics: Freezing during mould filling (1983)
    Springer
    Rheologica acta 22 (1983), S. 223-236 
    Details
    ISSN: 1435-1528
    Schlagwort(e): Injection moulding ; thermoplastic ; freezing ; polymer
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: Abstract The injection moulding of thermoplastic polymers involves, during mould filling, flows of hot melts into mould networks, the walls of which are so cold that frozen layers form on them. Theoretical analyses of such flows are presented here.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01332374
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
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    Water loss on Venus - The role of carbon monoxide (1984)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-06-28
    Beschreibung: The four-to-fivefold difference in water abundance between the earth and Venus may reflect either initial differences in the bulk volatile content of the two planets, or massive water loss mechanisms on Venus. These two possibilities were investigated by performing thermodynamic calculations on the heterogeneous system C-O-H-N-S, varying C/H upward from its 0.033 terrestrial value. While atmospheric H2O decreases as bulk C/H increases, the latter would have to rise to an improbably high value in order to account for the low water abundance on Venus through initial deficiency alone. Calculations suggest that if the outgassed C/H on Venus was higher than on earth by even a factor of 5, it would have been sufficient for CO to become competitive with FeO as a sink for oxygen. Together with the lower initial water abundance value that follows from a higher C/H ratio, water loss due to CO may have been a major factor.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: Icarus (ISSN 0019-1035); 60; 307-316
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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