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1.
The dependence of the nonlinear reflection coefficient R of a mirror with a wavefront reversing surface on the intensity I
of the reference wave is analyzed in terms of a phenomenological model of a medium having a nonlinear Fresnel reflection amplitude
coefficient φ. Substantial differences are revealed for media having different signs of the nonlinearity coefficient β=(dφ/dI).
It is shown that R is related to the magnitude D of the dynamic range of the wavefront reversing mirror by the expression
RD=Qs' where Qs is a parameter which defines the “quality” of the nonlinear medium.
Far-Eastern State Academy of Communications. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 68–70,
August, 1997. 相似文献
2.
We construct estimators of the expectation of a nonstationary stochastic process with time-dependent variance. Limit relations are obtained for particular correlation dependences.Translated from Statisticheskie Metody, pp. 98–103, 1982. 相似文献
3.
Positively charged lipids of the 1,3-oxathiolane series were synthesized by interaction of 2-pentadecyl-5-tosyloxymethyl- or -5-iodomethyl-1,3-oxathiolane with 2-(N,N-dimcthyl-amino)ethanol.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 2347–2349, September, 1996. 相似文献
4.
A. M. Lazitskaya N. V. Chmelevskaya E. A. Illarionova A. I. Illarionov 《Bulletin of the Russian Academy of Sciences: Physics》2017,81(9):1131-1135
The applicability of the spectrophotometric method for the quantitative determination of phenazepam using methyl red as an optical reference sample is demonstrated. The optical parameters of methyl red’s absorption bands and its optimum regions of absorption are confirmed, a scaling ratio is determined, and equations for the calibration curves are proposed. 相似文献
5.
Andrea Kunfermann Matthias Witschel Boris Illarionov Ren Martin Matthias Rottmann H. Wolfgang Hffken Michael Seet Wolfgang Eisenreich Hans‐Joachim Knlker Markus Fischer Adelbert Bacher Michael Groll Franois Diederich 《Angewandte Chemie (International ed. in English)》2014,53(8):2235-2239
The enzymes of the non‐mevalonate pathway for isoprenoid biosynthesis have been identified as attractive targets with novel modes of action for the development of herbicides for crop protection and agents against infectious diseases. This pathway is present in many pathogenic organisms and plants, but absent in mammals. By using high‐throughput screening, we identified highly halogenated marine natural products, the pseudilins, to be inhibitors of the third enzyme, IspD, in the pathway. Their activity against the IspD enzymes from Arabidopsis thaliana and Plasmodium vivax was determined in photometric and NMR‐based assays. Cocrystal structures revealed that pseudilins bind to an allosteric pocket by using both divalent metal ion coordination and halogen bonding. The allosteric mode of action for preventing cosubstrate (CTP) binding at the active site was elucidated. Pseudilins show herbicidal activity in plant assays and antiplasmodial activity in cell‐based assays. 相似文献
6.
O. V. Goreva A. I. Illarionov D. V. Gorev 《Bulletin of the Russian Academy of Sciences: Physics》2016,80(1):28-31
Mechanisms of the frequency conversion of broadband infrared laser radiation in a uniaxial crystal with the radiation focused by a lens with spherical aberration are investigated. A mathematical model is presented. Computer modeling of the spatial–angular structures of frequency-converted focused broadband infrared radiation is performed. 相似文献
7.
Tunneling of electrons with conservation of the transverse wave vector in the Au/CaF2/Si(111) system
M. I. Vexler Yu. Yu. Illarionov S. M. Suturin V. V. Fedorov N. S. Sokolov 《Physics of the Solid State》2010,52(11):2357-2363
Epitaxial layers of calcium fluoride on silicon(111) have been prepared, in which tunneling transfer of electrons with conservation
of the transverse momentum component has been observed. A good agreement between the results of simulation and the experimental
data has been achieved. The procedure underlying the calculations has been described in detail. The obtained films are suitable
for the use as barrier layers in various solid-state electronic devices. 相似文献
8.
9.
Dr. Matthias C. Witschel Dr. H. Wolfgang Höffken Michael Seet Dr. Liliana Parra Thomas Mietzner Frank Thater Dr. Ricarda Niggeweg Dr. Franz Röhl Dr. Boris Illarionov Dr. Felix Rohdich Dr. Johannes Kaiser Prof. Dr. Markus Fischer Prof. Dr. Adelbert Bacher Prof. Dr. François Diederich 《Angewandte Chemie (International ed. in English)》2011,50(34):7931-7935
10.
A new method of determining the diffusion characteristics of quantum systems in crystals is investigated in the present paper on the example of color centers. The method is based on a spatially selective photochemical crystal transformation upon exposure to optical radiation pulses. The principal feasibility of implementation of this method for the determination of the diffusion coefficient of color centers based on the observed dynamics of spatially modulated distribution of their concentrations induced by optical radiation with femtosecond coherence is demonstrated. 相似文献