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991.
In a previous paper, which appeared in two parts, Algorithm I was described. (See [1] and [2] for details). Algorithm II differs from Algorithm I in that the Chinese Remainder Theorem is not used whenever it is necessary to reconstruct a unique integer from its residue representation. Instead, the residue representation is converted to asymmetric residue representation and then the symmetric residue representation is converted to its associatedsymmetric mixed-radix representation, from which the unique integer can be reconstructed in an easy manner. This procedure has advantages over the procedure using the Chinese Remainder Theorem. 相似文献
992.
993.
P. Smrž 《Czechoslovak Journal of Physics》1964,14(11):805-809
A method for accounting the kinematic dependence of full cross-sections of the N reactions on the virtualess by one-meson approximation is proposed. Results of the computation for 9 GeV NN reactions are given. 相似文献
994.
V. Petržílka 《Czechoslovak Journal of Physics》1968,18(9):1111-1116
A proposal was made to use neutron diffraction to investigate the dynamics of lattice vibrations of piezoelectric resonators. The results obtained explain some experimental facts published in the papers [9, 10, 13]. The obtained spectral distribution of diffracted neutrons is analogous to the spectral distributions of acoustically modulated -rays in the Mössbauer effect.The author is indebted to Assoc. Prof. J. Tichý, RNDr. A. Vancura CSc. and Ing. V. A. Petrílka CSc. for their valuable discussions of the resluts of this paper. 相似文献
995.
Relative stabilities (ΔGc) of ammonium-bound monomers and dimers of anomeric β-
-pentofuranosyl 1α- and 1β-azide derivates are determinate using the kinetic method by measuring relative rates of competitive collision-induced dissociations of dimeric [ANH4B]+ and trimeric [A2NH4B]+ or [ANH4B2]+ cluster ions. Comparison between calculated ammonium affinities (AAs) and relative stabilities (ΔGc) of ammonium-bound monomers shows qualitative correlations between both thermochemical quantities, but in two examples the activation barrier differences of competitive fragmentation channels cause a large disparity between both thermochemical data. Therefore, the most stable ammonium-bound monomers of the anomeric lα- and lβ-2,3,5-tri-O-benzyl-β-
-arabino-pento-furanosyl azides possess the lowest ammonium affinities and the highest relative stabilities. Two different relative stabilities measured for the same ammonium-bound homo- or hetero-dimers indicate dissimilar activated barriers of trimers transition states for dimer formations. The activated barriers of trimers depend on the relative stabilities of ammonium-bound monomer within the trimeric cluster ions. 相似文献
996.
The long-term stability of pentacene thin-film transistors (TFTs) encapsulated with a transparent SnO2 thin-film prepared by ion beam-assisted deposition (IBAD) was investigated. After encapsulation process, our organic thin-film transistors (OTFTs) showed somewhat degraded field-effect mobility of 0.5 cm2/(V s) that was initially 0.62 cm2/(V s), when a buffer layer of thermally evaporated 100 nm SnO2 film had been deposited prior to IBAD process. However, the mobility was surprisingly sustained up to 1 month and then gradually degraded down to 0.35 cm2/(V s) which was still three times higher than that of the OTFT without any encapsulation layer after 100 days in air ambient. The encapsulated OTFTs also exhibited superior on/off current ratio of over 105 to that of the unprotected devices (∼104) which was reduced from ∼106 before aging. Therefore, the enhanced long-term stability of our encapsulated OTFTs should be attributed to well protection of permeation of H2O and O2 into the devices by the IBAD SnO2 thin-film which could be used as an effective inorganic gas barrier for transparent organic electronic devices. 相似文献
997.
Summary Possibilities of the measurement of elemental maps and their digital processing are demonstrated. Hardware and software developments and some applications for various material problems are discusses. 相似文献
998.
999.
The first step in decommissioning of NPP is connected with defueling and successful disposal of liquid radioactive wastes (LRW), both from previous production and all work connected with this step. These require precise knowledge about the concentration of radioactive nuclides presented, especially alpha-emitters in all material fluxes arising in sich work (namely shut-down after some accident). This paper reports, results of the determination of U, Pu, Am and Cm by means of both the commonly used and the newly developed radiochemical procedures in various types of materials, e.g., LRW, aerosol filters, ashes resulted from incineration technology, metal surfaces, decontamination solutions etc. 相似文献
1000.
M. Blažek 《Czechoslovak Journal of Physics》1988,38(7):705-719
Restoration of the full probability distribution by means of its asymptotics is considered. In the present contribution such cases are discussed where information about the asymptotics can be deduced from statistical properties of real physical systems represented, e.g., by light beams in the case of the photoproduction of electrons in the field of quantum optics or by (charged) secondaries produced by collisions observed in the field of high energy physics. Arbitrarily many modes with superposition of stochastic and coherent components are taken into account including also the case of pure coherent fields. The difference of the last case compared with the superposition alone is emphasized. To solve the corresponding inverse problems the Poisson transform is applied. Scaling properties of asymptotic probability distributions and some open problems are mentioned too. 相似文献