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  • SOLAR PHYSICS  (52)
  • Biology
  • GENERAL
  • General Chemistry
  • 1975-1979  (70)
  • 1955-1959  (11)
  • 1978  (70)
  • 1958  (11)
  • 1
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    The strength of the sun's polar fields (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The magnetic field strength within the polar caps of the sun is an important parameter for both the solar activity cycle and for our understanding of the interplanetary magnetic field. Measurements of the line-of-sight component of the magnetic field generally yield 0.1 to 0.2 mT near times of sunspot minimum. This paper reports measurements of the polar fields made at the Stanford Solar Observatory using the Fe I line at 525.02 nm. It is found that the average flux density poleward of 55 deg latitude is about 0.6 mT peaking to more than 1 mT at the pole and decreasing to 0.2 mT at the polar cap boundary. The total open flux through either polar cap thus becomes about 3 x 10 to the 14th Wb. It is also shown that observed magnetic field strengths vary as the line-of-sight component of nearly radial fields.
    Keywords: SOLAR PHYSICS
    Type: Solar Physics; 58; July 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Center and limb solar spectrum in high spectral resolution 225.2 nm to 319.6 nm (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The atlas has been designed to fulfill the need in solar and stellar astronomy, in aeronomy, and in space science for a convenient reference source that provides a detailed and accurate record of the measured solar ultraviolet spectrum in high spectral resolution for the wavelength range from 225.2 nm to 319.6 nm. The atlas also contains a preliminary synthetic solar spectrum with a legend for identifying and describing the features of the synthetic spectrum. Attention is given to aspects of instrumentation, the radiometric calibration, the wavelength scale, background noise random fluctuations and data filtering, intermittent noise, the observational conditions, the experimental uncertainty, the atlas format, references, tables, and plots.
    Keywords: SOLAR PHYSICS
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    NASA TECHNICAL REPORTS
  • 3
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    Physical properties of solar chromospheric plages. III - Models based on Ca II and Mg II observations (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Solar plages are modeled using observations of both the Ca II K and the Mg II h and k lines. A partial-redistribution approach is employed for calculating the line profiles on the basis of a grid of five model chromospheres. The computed integrated emission intensities for the five atmospheric models are compared with observations of six regions on the sun as well as with models of active-chromosphere stars. It is concluded that the basic plage model grid proposed by Shine and Linsky (1974) is still valid when the Mg II lines are included in the analysis and the Ca II and Mg II lines are analyzed using partial-redistribution diagnostics.
    Keywords: SOLAR PHYSICS
    Type: PB-289015 , Solar Physics; 58; June 197
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    NASA TECHNICAL REPORTS
  • 4
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    The solar XUV He I and He II emission lines. II - Intensity ratios and distribution functions (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: SOLAR PHYSICS
    Type: PB-284726 , Astrophysical Journal; vol. 222
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    NASA TECHNICAL REPORTS
  • 5
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    On the supposed anticorrelation of solar polar and equatorial rotation rates (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The anticorrelation between two of the three parameters used to calculate the angular velocity of the sun's differential rotation is here said to be due to numerical coupling. A computer simulation technique shows that the relationship between the two parameters is caused by the effect of noise on the least-squares analysis used to obtain the three parameters used to determine the angular velocity in terms of the heliographic latitude. The computer simulation technique is described. The supposed anticorrelation had been used to infer that variations of the sun's polar and equatorial rotation rates are anticorrelated.
    Keywords: SOLAR PHYSICS
    Type: Solar Physics; 56; Feb. 197
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    NASA TECHNICAL REPORTS
  • 6
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    The solar XUV He I and He II emission lines. I - Intensities and gross center-to-limb behavior (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The center-to-limb variation of the He II 304- and 256-A lines and He I 584- and 537-A lines is derived for different solar features, but averaged over the chromospheric supergranulation structure. The general trend is for limb brightening in quiet-sun regions, limb neutrality in unipolar magnetic regions (UMR), and limb darkening in polar coronal holes. The center-to-limb behavior in these optically thick emission lines indicates collisional excitation and decreasing transition-region temperature gradients with respect to optical depth in the sequence quiet sun to UMR to coronal hole.
    Keywords: SOLAR PHYSICS
    Type: PB80-118110 , Astrophysical Journal; vol. 220
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    NASA TECHNICAL REPORTS
  • 7
    Electronic Resource
    Electronic Resource
    Stereochemische Betrachtungen über Reaktionen alkaliorganischer Verbindungen (1958)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 70 (1958), S. 151-154 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden die stereochemischen Daten von Reaktionen alkali-organischer Verbindungen mit Alkylhalogeniden und äthern gesammelt, um aus ihnen Näheres über die Reaktionsabläufe zu erfahren. Die Bildung der recht verschiedenen Reaktionsprodukte läßt sich verstehen, wenn man die Umsetzungen in jeweils eine Kupplungs-, Austausch- und Eliminierungsreaktion aufteilt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19580700603
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Zur Frage der Bindungsverhältnisse bei Komplexverbindungen (1958)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 70 (1958), S. 155-163 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird untersucht, in wie weit auf Grund der Ergebnisse physikalischer oder chemischer Untersuchungen eine Aussage über den Bindungszustand von Komplexverbindungen zulässig ist. Dabei werden besonders die Konsequenzen, die sich aus dem elektrostatischen Modell der Komplexionen bezüglich der optischen und magnetischen Eigenschaften ergeben, dargelegt. Die Bedeutung des Variationsprinzips der Quantentheorie für die Diskussion von Bindungsproblemen wird erläutert.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19580700604
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  • 9
    Electronic Resource
    Electronic Resource
    Handbook of Chemistry and Physics, herausgegeben von Ch. D. Hodgman. Chemical Rubber Publishing Co., Cleveland, Ohio (USA) 1957/58 39. Aufl., 3212 S., DM 53. -  Alleinige Auslieferung für Deutschland; Verlag Chemie GmbH., Abtlg. Sortiment, Weinheim/Bergstr. (1958)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 70 (1958), S. 172-172 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19580700617
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  • 10
    Electronic Resource
    Electronic Resource
    Gaschromatographie (1958)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 70 (1958), S. 42-50 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird ein Überblick über die Entwicklung der Gaschromatographie sowie eine Beschreibung des Prinzips und der experimentellen Methodik gegeben. Die für ein Chromatogramm charakteristischen Größen  -  wie Durchbruchszeit, Verzögerungszeit, Verweilzeit, Halbwertsbreite, Rf-Wert und Retentionsvolumen  -  werden sowohl nach der kinetischen wie nach der thermodynamischen Betrachtungsweise eingeführt. Die Beziehungen dieser Größen zueinander sowie zu den als Maß der Trennschärfe oder Güte der Säule benutzten Größen werden dargetan. Neuere Experimente der Autoren betreffen die Trennung der Gase Sauerstoff und Stickstoff, die Bestimmung der Adsorptionswärmen der Edelgase an Aktivkohle und die Testung von Katalysatoroberflächen.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19580700203
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