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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 6 (1987), S. 13-15 
    ISSN: 1434-6079
    Keywords: 31.20.D ; 32.80.F
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Theg-Hartree method is adapted to the direct ab-initio calculation of atomic transition energy. For the improvement of numerical accuracy the newg-Hartree code is developed and used for the calculations of atomic ionization energies of selected levels of small atoms He(Z=2), Be(Z=4), Ne(Z=10), Mg(Z=12) and Ar(Z=18). The results are very similar to those obtained in a previous work. The agreement between theory and experiment is excellent.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 6 (1987), S. 303-307 
    ISSN: 1434-6079
    Keywords: 31.20.D ; 32.80.F ; M
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Ca 3s, Kr 4s, Sr 4s and Yb 5s atomic ionization spectra are calculated using the one-particle Green's function method within the framework of Random phase approximation with exchange. Pronounced final ionic correlation effects are found for these levels. The relative intensity of the main ionic state is reduced considerably byns −1↔np −2 nd super Coster Kronig process. The ionization energy of the main ionic state is shifted as much as ∼4 eV from the relativistic Hartree-Fock ΔSCF ionization energy byns −1↔np −2 nd super Coster-Kronig process. The existence of strongnp −2 nd 2 S satellite is predicted for these levels.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 18 (1980), S. 3229-3243 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A freeze-dried cellulose acetate membrane fine structure was observed with an ultrathin sectioning electron microscope. The fine structure for the top surface in this membrane could be seen by lead citrate staining ultrathin sectioning. This network structure was observed among pores, which existed in porous substrate. The pore diameter in the top surface was about 50 Å, a value that agrees approximately with the value estimated by gas permeation.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 16 (1978), S. 3249-3257 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Gas permeation rates for helium, nitrogen, argon, and oxygen have been studied by using freezedried cellulose acetate membrane. When the gas permeation rate in freeze-dried cellulose acetate membrane is high, the gas permeation rate through the pores is predominant. On the other hand, when this rate is small, it is predominant at the dense part, except for the pores. Therefore the gas permeation rate in freeze-dried cellulose acetate membrane can be explained by the sum of two gas permeation rates.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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