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  • Springer  (399)
  • American Geophysical Union  (67)
  • National Academy of Sciences  (65)
  • 1985-1989  (518)
  • 1955-1959  (13)
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Keywords
Publisher
Years
Year
  • 11
    Electronic Resource
    Electronic Resource
    Discrete Alfvén waves in planar flux tubes (1986)
    Springer
    Astrophysics and space science 127 (1986), S. 265-284 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Properties of discrete Alfvén wave modes are derived, at frequencies up to the ion-cyclotron frequency, for current-carrying plasma slabs with non-uniform densities. It is shown that the essential features of the dispersion relations can be derived by examining the dominant terms in the ‘potential’ function, when the wave equation is cast in the Schrödinger equation form. Analytical predictions for a class of mass and current density profiles are compared with numerically calculated dispersion relations and wavefields for particular profiles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00636542
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  • 12
    Electronic Resource
    Electronic Resource
    Monte Carlo calculation of comptonization effects in spherical accretion onto black holes (1985)
    Springer
    Astrophysics and space science 116 (1985), S. 89-96 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Spherical accretion onto black holes at high accretion rates leads to temperatures and optical depths for which Comptonization of the emerging radiation plays an important role, altering both the plasma temperature and the emergent spectrum. In this paper the nonlocal effects of Comptonization are accounted for by numerically modeling the scattering process with Monte Carlo techniques. Calculations are performed for black hole masses ranging from 101–109 M ⊙ and are compared with the local scattering model of Ipser and Price (1983). It is found that the local scattering approximation underestimates the energy in the X-ray portion of the spectrum. Monte Carlo calculations shows that the spectrum flattens and the spectral index decreases to values about 20% below those obtained by using the local scattering approximation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00649276
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  • 13
    Electronic Resource
    Electronic Resource
    The anodic oxidation of poly(N-vinylcarbazole) films (1986)
    Springer
    Journal of applied electrochemistry 16 (1986), S. 239-249 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The electrochemical oxidation of thin coats of poly(N-vinylcarbazole) on platinum electrodes has been studied. The oxidation is shown to involve initially the cross-linking of the polymer chains through the oxidation of up to 50% of the carbazole moieties in the coat and the dimerization of the resulting pendant carbazole cation radicals. The resulting dimeric carbazole unit is more easily oxidized than the monomer and undergoes a further (reversible) two-electron oxidation. Theory is presented describing the shape of the current-voltage curves obtained, and this together with current transients obtained from potential-step experiments is used to confirm the mechanism and obtain a rate constant of 6×10−3M−1s−1 for the dimerization of the carbazole cation radicals within the coat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01093356
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  • 14
    Electronic Resource
    Electronic Resource
    A simulation model for determining variable worker requirements in a service operation with time-dependent customer demand (1988)
    Springer
    Queueing systems 3 (1988), S. 265-275 
    Details
    ISSN: 1572-9443
    Keywords: Simulation ; service operations ; worker requirements ; queueing models
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract In a service operation where worker requirements have to be determined for short scheduling time periods with nonstationary customer demand, the assumptions necessary for applying steady-state solutions to elementary queueing models are usually violated. This paper describes a simulation study of the behavior of such a service operation. The results are compared with the steady-state solutions to a queueing model where individual scheduling time periods are assumed to be independent. It is found that if the system utilization is below a derived maximum value (based on a service level criterion), then the steady-state solutions are robust enough to explain the behavior of the system and can be used to schedule worker requirements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01161218
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  • 15
    Electronic Resource
    Electronic Resource
    Structure of monoclinic dicalcium pyrophosphate tetrahydrate (1985)
    Springer
    Journal of chemical crystallography 15 (1985), S. 513-521 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Ca2P2O7·4H2O, monoclinicP21/c, a=6.008(1),b=25.034(4),c=6.837(1) Å,β=109.7 (1)°,Z=4,D 0=2.20,D c =2.24 g cm−3. The structure was solved by direct methods and refined by block-diagonal matrix least squares to a finalR value of 0.038. Both calcium atoms are seven coordinate. The $$\overline {P - O_T } $$ distance is 1.510(6) Å, whereas the $$\overline {P - O_B } $$ distance is 1.619(1) Å and the P-OB-P angle is 125.9(1)°.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01171054
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  • 16
    Electronic Resource
    Electronic Resource
    Partial match retrieval using recursive linear hashing (1985)
    Springer
    BIT 25 (1985), S. 477-484 
    Details
    ISSN: 1572-9125
    Keywords: partial match retrieval ; linear hashing ; dynamic files ; 3.74 ; 4.33 ; 4.34
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Recursive linear hashing is a hashing technique proposed for files which can grow and shrink dynamically. The scheme is an extension of linear hashing, a method originally proposed by Litwin, but unlike Litwin's scheme, it does not require conventional overflow pages. In this paper, we investigate the application of recursive linear hashing to partial match retrieval problems. Consistent with the results for primary key retrieval, recursive linear hashing performs better than the conventional scheme on these problems, especially at high load factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01935368
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  • 17
    Electronic Resource
    Electronic Resource
    Editorial announcement (1987)
    Springer
    Celestial mechanics and dynamical astronomy 42 (1987), S. 1-1 
    Details
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01232944
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  • 18
    Electronic Resource
    Electronic Resource
    Editorial announcement (1988)
    Springer
    Celestial mechanics and dynamical astronomy 44 (1988), S. v 
    Details
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01230701
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  • 19
    Electronic Resource
    Electronic Resource
    The oscillator strength of theC 2 Swan bands (1985)
    Springer
    The European physical journal 321 (1985), S. 75-77 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Litetimes of six individual rotational levels in theν=0 vibrational level of the3 π g state of C2 were measured by monitoring the fluorescent decay after pulsed laser excitation. A value of 92±5 ns was obtained, 25% lower than previous measurements. The corresponding oscillator strength for the Swan (0-0) band isf 00=0.032±0.002, in agreement with recent theoretical work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411947
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  • 20
    Electronic Resource
    Electronic Resource
    Dilepton and trilepton production by antineutrinos and neutrinos in neon (1985)
    Springer
    The European physical journal 29 (1985), S. 15-28 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A sample of over 25,000 fully measured neutrino and antineutrino charged current interactions in BEBC includes 192 dilepton candidates. The prompt signal after subtraction of background is 41 ±7µ+ e -, 35±7µ+µ- events from $$\bar v$$ interactions, and 32±7µ-µ+ events from ν interactions. There are 2 trileptons, µ-µ- e + and µ-µ-µ+. Results are compared with other experimental data and with the standard model. Limits to prompt like sign µ+ e +, µ+µ+ and µ-µ- signals are given and compared with other experiments and with theoretical calculations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01571374
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