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  • 1970-1974  (5)
  • 1960-1964  (3)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 198 (1963), S. 1086-1086 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Subsequent work has tended to confirm this view. Pyrolyses of butylbenzene3, of tetralin4, or of n-decane5 at 700, for example, have given tars which have been shown to contain significant quantities of 3,4-benzopyrene. The relative yields of the various hydrocarbons in these tars and in tars ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 23 (1973), S. 261-272 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Msasurements of the growth rates of {110} and {001} faces of triglycinsulphate (TGS) as functions of supersaturation of the solution are analyzed on the basis of the surface-diffusion model of Burton, Cabrera and Frank. Approximate values of the free activation energies of dehydratation, surface diffusion and incorporation of TGS molecules into the crystal lattice are determined. It is shown that surface diffusion is responsible for the low growth rate of {001} faces; in the case of {110} faces, this mechanism is less important at higher values of supersaturation than volume diffusion. This fact is discussed on the basis of results obtained from measurements of the influence of hydrodynamical conditions on the growth of the prismatic {110} faces of TGS crystals.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 23 (1973), S. 855-862 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Single crystals of TGS doped with Pd2+ have been grown from aqueous solutions using the method of temperature decrease. It was found that the relative growth rate along thec-axis is not constant through the growth process being larger by more than an order of magnitude (in medium size crystals, ca. 30 g) than in pure TGS crystals. Investigation of the domain structure revealed that in the growth pyramids ¦110¦, the crystals are poled in one direction. The internal bias field in these growth pyramids was experimentally found to be of the order of 1 kV/cm. The high internal field excludes the possibility of spontaneous depoling and makes the Pd2+-doped TGS crystals suitable for pyroelectric applications.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 24 (1974), S. 718-724 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The equations of motion for the plane shell consisting of an ideal fluid and creating the de Sitter solution on one side and the static plane symmetric solution of Einstein equations with positive cosmological constant on the other side are derived. Solution of the equation of motion for the case of “plane gravitational condensor” is found and the necessary agreement with the solution of the problem in the caseA = 0 is demonstrated.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Heat and mass transfer 3 (1970), S. 1-6 
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Repräsentative Resultate der Wechsel-wirkung zwischen Leitung und Strahlung eines nicht grauen Gases, zwischen zwei unendlichen, parallelen, grauen Platten, werden mitgeteilt. Der Einfluß des Reflexionsgrades der Platten auf die Wechselwirkung zwischen Leitung und Strahlung für diffuse Oberflächen wird untersucht; ebenso ein spezieller Fall von einer schwarzen Platte kombiniert mit einer diffus strahlenden und spiegelnd reflektierenden Platte. Zusätzlich wird die Genauigkeit der Näherung eines eingliedrigen Exponential-Kernes diskutiert.
    Notes: Abstract Representative results are presented for nongray radiation-conduction interaction in a radiating gas bounded by two gray infinite parallel plates. The effect of the surface emittanee on the interaction of radiation with conduction for diffuse surfaces and a special case of one black surface combined with a diffusely emitting, specularly reflecting surface is investigated. Additionally, the accuracy of the one-term exponential kernel approximation is examined.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 21 (1971), S. 809-812 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The geometric interpretation of Zelmanov's Chronometric invarians is given and their conection to observable quantities as well as the connection of Zelmanov's approach to the generally covariant Dehnen's method is found.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 10 (1964), S. 466-470 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 9 (1963), S. 797-804 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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