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Dissertation
Experimental and CFD study on low temperature drying of loose and compressed bulks
(2015-01-27)
Die Trocknung ist eines der am häufigsten verwendeten Verfahren, um die Haltbarkeit von landwirtschaftlichen Gütern zu verlängern. Von den vielen gebräuchlichen Trocknungsarten ist die Konvektionstrocknung, die Luft als Energie- und Feuchteträger verwendet, weiterhin die wichtigste. Trotz ihrer Nachteile und ihres hohen spezifischen Energieverbrauchs sind Satztrockner für die Getreide-, Kräuter- und Heutrocknung noch weit verbreitet. Ferner werden Konvektionstrockner gemeinhin zur künstlichen Trocknung eingesetzt.
Diese ...
Aufsatz
The continuation of the periodic table up to Z = 172.
(1970)
The chemical elements up to Z = 172 are calculated with a relativistic Hartree-Fock-Slater
program taking into account the effect of the extended nucleus. Predictions of the binding energies, the X-ray spectra and the number of electrons inside the nuclei are given for the inner electron shells.
The predicted chemical behaviour will be discussed for a11 elements between Z = 104-120 and compared with previous known extrapolations. For the elements Z = 121-172 predictions of their chemistry and a proposal for the ...
Aufsatz
Relativistic effects in physics and chemistry of element 105. [Part] IV.
(1993)
Results of relativistic (Dirac-Slater and Dirac-Fock) and nonrelativistic (Hartree-Fock-Slater) atomic and molecular calculations have been compared for the group 5 elements Nb, Ta, and Ha and their compounds MCl_5, to elucidate the influence of relativistic effects on their
properties especially in going from the 5d element Ta to the 6d element Ha. The analysis of the radial distribution of the valence electrons of the metals for electronic configurations obtained as a result of the molecular calculations and their ...
Aufsatz
Precise calculations of atomic electron binding energies in fermium
(1972)
The comparison between the experimental binding energies for the K, L, and M electrons for fermium and the results of our Dirac-Fock calculation, taking into account all tractable corrections, leads to agreement within about 20 eV. This shows that the present method of calculation is an adequate description of this problem and that nonlinear electrodynamical effects will not be present in nature or will be smaller than 1% compared to the values recently proposed. It is found that the energies of electronic transitions ...
Diplomarbeit
Vergleichende Studien bei der iterativen Gleichungslösung im Rahmen der nichtlinearen Methode der finiten Elemente
(Institut für Mechanik, Universität Kassel, 2006-12)
Aufsatz
State-dependent volume isotope shifts of low-lying states of group-IIa and -IIb elements
(1985)
Results of relativistic multiconfiguration Dirac-Fock calculations with an extended nucleus are used to analyze the volume isotope shifts of the resonance transitions in the group-IIa and -IIb elements
as well as in Yb. This is done together with a review of the isotope shift theory, including a critical evaluation and comparison of the semiempirical calculation of volume isotope shifts commonly
used today. Electronic factors F_i, proportional to differences of electronic densities over the nuclear volume, are ...
Aufsatz
Analysis of the electronic structure, hyperfine structure, and volume isotope shifts in the low lying states of BA I and BA II
(1988)
Relativistic multi-configuration Dirac Fock (MCDF) wavefunctions coupled to good angular momentum J have been calculated for low lying
states of Ba I and Ba II. These wavefunctions are compared with semiempirical
ones derived from experimental atomic energy levels. It is found that significantly better agreement is obtained when close configurations are included in the MCDF wavefunctions. Calculations of the electronic part of the field isotope shift lead to very good agreement with electronic factors
derived from ...
Aufsatz
Inner shells
(Hanle, Wilhelm (Hrsg.), 1978)