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  • ASTROPHYSICS  (1)
  • Polymer and Materials Science  (1)
  • methane  (1)
  • Condensed Matter: Electronic Properties, etc.
  • General Chemistry
  • Inorganic Chemistry
  • 1980-1984  (3)
  • 1984  (3)
Collection
Keywords
Publisher
Years
  • 1980-1984  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Trace gas measurements during aircraft flights in the tropopause region over Europe and North Africa (1984)
    Springer
    Journal of atmospheric chemistry 2 (1984), S. 133-143 
    Details
    ISSN: 1573-0662
    Keywords: Trace gases ; methane ; carbon monoxide ; nitrous oxide ; distribution ; tropospheric-stratospheric exchange
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract During aircraft flights in May 1981 from Munich (40°N) to north of the Spitsbergen Islands (82°N) and to Monrovia, Liberia (6°N), air samples were obtained in the altitude range of 8 to 11 km and during the ascents and descents near the airports. These samples have been analyzed for the trace gas mixing ratios of CH4, CO and N2O. The results of these analyses are presented and discussed. The results provide new evidence of tropospheric-stratospheric exchange events in the vicinity of the subpolar and subtropical tropopause foldings and possibly show a case of transport of CO-enriched air in the upper troposphere above the North Atlantic Ocean.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00114127
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Zum Umsatz des Monomers Hexamethyldisiloxan in siliciumorganisches Schichtmaterial bei der Glimmpolymerisation (1984)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 35 (1984), S. 257-260 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: The results of measurements of the thin film growth rate along the wall of long discharge tubes with flowing gas are presented. The dependence of the growth rate distribution along the tube wall on various parameters is discussed. The analysis of the conversion rate of the monomer to thin film material leads to important conclusions on the mechanism of glow polymer film formation.
    Notes: Durch Ausmessen der Profile der Schichtabscheidungsrate entlang der Wand durchströmter langer Entladungsrohre lassen sich deren Abhängigkeiten von den verschiedenen Parametern diskutieren. Speziell die Auswertung des Umsetzungsgrades liefert wichtige Aussagen zum Mechanismus der Glimmpolymerschichtbildung.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1984.010350402
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    Paper (German National Licenses)
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  • 3
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    Unknown
    IUE observations of high-redshift quasars (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Attention is given to the spectral energy distributions of nine high-redshift quasars between 1250 and 10,000 A. The distributions steepen shortward of about 1200 A in all but one object. The steepening's lack of correlation with QSO luminosity suggests that it arises from absorption by intervening material along the line of sight. Reddening may contribute to the steepening of the QSO continua, if dust lies along the line of sight to the continuum source, and is difficult to assess quantitatively. In QSOs with redshift sufficiently high for Lyman-alpha to be observed at high resolution, it is possible to account for the observed continuum steepening by the Lyman continuum absorption corresponding to the narrow Lyman-alpha absorption lines seen.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 281; 76-89
    Format: text
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