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  • 1965-1969  (19)
  • 11
    Electronic Resource
    Electronic Resource
    Radio emission of fast cosmic ions (1969)
    Springer
    Astrophysics and space science 3 (1969), S. 448-463 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is usually assumed that the ions of cosmic rays contribute nothing to the observable electromagnetic radiation. However, this is true only when these ions are moving in a vacuum or a quiet (nonturbulent) plasma. In the case of fast ions in a turbulent plasma, there is an effective nonlinear mechanism of radiation which is discussed in this paper. The fast ion (relativistic or nonrelativistic) moving in the plasma creates a polarization cloud around itself which also moves with the particles. The turbulent plasma waves may scatter on the moving electric field of this polarization cloud. In the process of this scattering an electromagnetic wave with frequency (2.7) is generated. Let ω1 and k1 be the frequency and wave vector of turbulent plasma waves,V is the velocity of the ion, and ϱ is the angle between the wave vector of electromagnetic radiation and the direction of the ion velocity. The method of calculating the probability of the conversion of plasma waves (k1) into electromagnetic waves (k) by scattering on an ion with velocityV is described in detal in Section 2 (Equation (2.14)). The spectral coefficients of spontaneous radiation in the case of scattering of plasma waves on polarization clouds created by fast nonrelativistic ions are given in (3.6) for an ion energy distribution function (3.4) and in (3.8) for more general evaluations. The Equations (3.9)–(3.13) describe the spectral coefficients of spontaneous emission for different modes of plasma turbulence (Langmuir (3.9), electron cyclotron in a weak (3.10) or strong (3.11) magnetic field and ion acoustic (3.12)–(3.13) waves). The coefficients of reabsorption or induced emission are given by Equations (3.14) and (3.16)–(3.19). There is a maser effect in the case of scattering of plasma waves on a stream of ions. The effective temperature of the spontaneous emission is given by Equation (3.15). The spectral coefficients of radiation due to scattering of plasma waves on relativistic ions are calculated in the same manner (Equations (4.14)–(4.15)). The total energy loss due to this radiation is given in Equations (4.23)–(4.25). The coefficients of induced emission are given in (4.26)–(4.28). The results are discussed in Section 5. It is shown that the loss of energy by nonlinear plasma radiation is much smaller than the ionization loss. However, the coefficients of synchrotron radiation of electrons and nonlinear radiation of ions under cosmic conditions may be comparable in the case of a weak magnetic field and fairly low frequencies (5.5)–(5.6). Usually the spectrum of nonlinear plasma radiation is steeper than in the case of synchroton radiation. Equation (5.10) gives the condition for nonlinear radiation to prevail over thermal radiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00653365
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  • 12
    Electronic Resource
    Electronic Resource
    Effect of low doses of γ rays and neutrons on the aging of oils (1966)
    Springer
    Chemistry and technology of fuels and oils 2 (1966), S. 391-393 
    Details
    ISSN: 1573-8310
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary 1. Transformer oil subjected to a brief irradiation (dose 475 rad) ages more rapidly compared with unirradiated oil on prolonged contact with copper or copper oxide in the presence of air. 2. After fast neutron irradiation (dose 109 neutrons/cm2) and subsequent prolonged storage of turbine oil 22, and the same oil containing 5% additive (polyisobutylene), the viscosity and acid value are virtually unaltered. 3. Induced activity (beta-active P32 and S35) has been found in neutron-irradiated (Po-Be) turbine oil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00731576
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  • 13
    Electronic Resource
    Electronic Resource
    Application of the method of characteristics to the solution of the transfer equation for a nonstationary radiation field (1968)
    Springer
    Astrophysics 4 (1968), S. 205-208 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01013130
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  • 14
    Electronic Resource
    Electronic Resource
    Scattering of electromagnetic radiation by turbulent plasma under cosmic conditions (1968)
    Springer
    Astrophysics 4 (1968), S. 130-139 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01087499
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  • 15
    Electronic Resource
    Electronic Resource
    V. V. Sobolev, “Course of Theoretical Astrophysics,” Moscow, 1967 (1968)
    Springer
    Astrophysics 4 (1968), S. 201-203 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01087510
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  • 16
    Electronic Resource
    Electronic Resource
    Scattering of radiation within A spectral line emitted by turbulent plasma (1969)
    Springer
    Astrophysics 5 (1969), S. 8-12 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01013344
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  • 17
    Electronic Resource
    Electronic Resource
    PMR spectra of some morpholine derivatives (1967)
    Springer
    Chemistry of heterocyclic compounds 2 (1967), S. 482-483 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00509452
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  • 18
    Electronic Resource
    Electronic Resource
    Theory of synchrotron radiation in a magneto-active plasma (1967)
    Springer
    Radiophysics and quantum electronics 10 (1967), S. 5-7 
    Details
    ISSN: 1573-9120
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01038150
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  • 19
    Electronic Resource
    Electronic Resource
    Effects of moisture on glycidyl reactions with carboxylic acid anhydrides (1966)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 6 (1966), S. 65-70 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Moisture present in epoxy anhyride composites may hydrolyze the anhydride and cause major changes in the mechanical and chemical properties of the final composite. Heat distortion data and infrared spectroscopy are used to analyze the changes caused by the presence of the moisture. As the concentraton of water is increased, there is a decrease in the heat distortion or gass transition temperature. The decrease is due to a change in the crosslinking network and is caused by the reduction of the functonality of the epoxy group for acid as compared to the anhydride. Where rigid specifications must be met it is essential that the moisture level in the fillers, resins, etc. be kept constant.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760060112
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