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101.
I. Gnesi N. Angelov M. Artoni S. Baginyan F. Balestra Yu. Batusov P. Batyuk I. Belolaptikov A. Bianconi T. Blokhintseva M. Chiosso M. L. Colantoni M. Corradini A. Dem’yanov V. Drozdov V. Frolov R. Garfagnini A. Grasso V. Grebenyuk V. Ivanov A. Kirilov V. Kovalenko E. Lodi Rizzini V. Lyashenko A. Maggiora A. Moiseenko V. Panyushkin D. Panzieri B. Parsamyan G. Piragino G. Pontecorvo A. Rozhdestvensky N. Russakovich E. Scalas M. Schepkin F. Tosello L. Venturelli G. F. Zosi 《The European Physical Journal A - Hadrons and Nuclei》2011,47(1):1-10
102.
Numerical simulation of radio energy transfer in the ionospheric layer with random small-scale irregularities for the case of a point ground-based source and total reflection has been carried out using a specially designed algorithm based on Monte Carlo method ideas. The model demonstrates a redistribution of the reflected radiation power at the Earth's surface caused by multiple scattering. The data obtained can serve as confirmation of the effect of the anomalous attenuation of the signal power in the vicinity of the sounder. This result is in agreement with a more rigorous theory of the anomalous attenuation effect based on the solution of the radiative transfer equation. 相似文献
103.
104.
Radiophysics and Quantum Electronics - 相似文献
105.
Mitchenko S. A. Khomutov E. V. Kovalenko V. V. Beletskaya I. P. 《Kinetics and Catalysis》2002,43(4):469-474
Mechanochemical treatment of solid-phase K2PtX6 salts in a vibrating mill in an argon or air atmosphere produced paramagnetic Pt(III) complexes via the homolytic cleavage of the Pt–X bond. Lewis acid sites were found on the surface of the mechanically activated K2PtCl6 salt using the paramagnetic probe method. The sites can be attributed to coordinatively unsaturated Pt(IV) complexes formed via Pt–Cl bond heterolysis. 相似文献
106.
107.
In this work, we have theoretically and experimentally investigated the process of image amplification in photorefractive crystals as a result of the self-diffraction phenomenon. We have found that the amplification process is of the threshold type and is observed only for an angle of convergence of the light rays greater than a threshold value. The gain coefficient is rather high. For the LiNbO3 crystal, at a wavelength of 0.63 µm the gain coefficient reached 15 dB; at a wavelength of 0.44 µm, the gain was greater than 50 dB.Tomsk State Academy for Control Systems and Radioelectronics. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 22–26, June, 1994. 相似文献
108.
A theoretical model of nonstationary self-amplification of weak holographic gratings in birefringent photorefractive crystals
with two-and one-frequency readout is presented. The model takes account of the multiwave and vector character of the interactions
and the simultaneous occurrence of intra-and intermode recording and diffraction processes with different phase detunings
and complex coupling constants, which take account of the local and nonlocal response mechanisms of the medium. Analytical
solutions are obtained for the intercoupled recording and diffraction equations. The results of numerical calculations of
the kinetics of the spatial amplitude-phase profile and gain of the holographic grating and the selective amplification properties
with intra-and intermode interaction geometries are presented.
Zh. Tekh. Fiz. 67, 68–77 (April 1997) 相似文献
109.
This paper reports on a study of the size distribution of aluminum islands forming an aluminum-coated poly(ethylene terephthalate) film subjected to tension. The islands are shown to form four statistical ensembles, with the distribution in each of them being thermodynamically optimized and coinciding with the canonic distribution of thermodynamic probability. 相似文献
110.