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  • 1980-1984  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 33 (1984), S. 21-30 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Die zonale, harmonische Analyse der Stromfunktion zeigt während des ganzen Jahres eine dominierende Wellenzahl 1 in den südhernisphärischen Tropen. In der Nordhemisphäre sind die Wellenzahlen 1 und 3 im Winter von Bedeutung, während im Sommer ebenfalls Wellenzahl 1 dominiert. Die Berechnung des rotationellen Anteils der kinetischen Energie weist eine jährliche (12 Monate) Periode in den Subtropen und eine halbjährige (6 Monate) Periode in den Tropen auf. Der mittlere Zonalwind als Funktion der geographischen Breite und Zeit zeigt über dem Äquator Andeutungen interhemisphärischer Kopplung. Das Auftreten relativ starker Westwinde über dem Ostpazifik und dem Atlantik während des nordhemisphärischen Winters deutet darauf hin, daß diese Regionen günstig für interhemisphärische Kopplung sind.
    Notes: Summary Zonal harmonic analysis of stream function suggests the dominance of wave number 1 in the Southern Hemisphere tropics throughout the year. In the Northern Hemisphere, wave numbers 1 and 3 are found to be important in winter while in summer, wave number 1 dominates. Calculation of the rotational part of kinetic energy indicated annual (12 month) variation in the subtropics and a dominant semi-annual (6 month) variation in the tropics. A latitude-time section of zonal wind over the equator revealed interesting implications for interhemispheric coupling. Occurrence of fairly strong westerlies over the Eastern Pacific and Atlantic oceans, during the Northern Hemisphere winter, suggests that these regions are favorable for interhemispheric coupling.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 1983-01-01
    Print ISSN: 1073-5623
    Electronic ISSN: 1543-1940
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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  • 3
    Publication Date: 1984-03-01
    Print ISSN: 0177-7971
    Electronic ISSN: 1436-5065
    Topics: Geography , Physics
    Published by Springer
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  • 4
    Publication Date: 2019-06-28
    Description: The reaction between a 0.5 to 1.0 micron Al film and a thick Ti substrate to form TiAl3 occurs very rapidly on heating to 635 C and causes the Al to be confined to the surface region. After heating to 900 C, Ti3Al is formed with little release of Al into alpha-Ti. Further annealing at 900 C eventually causes the Ti3Al phase to decompose and a substantial amount of Al is released into alpha-Ti. The interdiffusion coefficient for Al in alpha-Ti at 900 C was found to increase by less than one order of magnitude as Al is varied from 0 to 20 at. pct. These data were obtained from the (101) X-ray diffraction intensity band using polycrystalline samples. Improvements in the analysis of X-ray diffraction data for the determination of composition profiles are discussed.
    Keywords: COMPOSITE MATERIALS
    Type: Metallurgical Transactions A - Physical Metallurgy and Materials Science; 14A; Jan. 198
    Format: text
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