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91.
A.A. Ilyich S.M. Kikkarin D.V. Petrov A.V. Tsarev I.B. Yakovkin 《Optics Communications》1985,56(3):161-166
A comparison of acoustooptic efficiency in both Ti:LiNbO3 and GaAlAs waveguides is made with the help of known results and additional experiments. It is shown that the acoustooptic figure of merit for the frequency of 100 MHz in a GaAlAs waveguide is one order of magnitude higher than in Ti:LiNbO3 waveguide. 相似文献
92.
93.
94.
A. V. Krylova V. I. Tsarev T. M. Peev T. I. Kushnarenko N. S. Torocheshnikov 《Reaction Kinetics and Catalysis Letters》1986,30(2):229-235
Reversible poisoning of the catalysts for ammonia synthesis by oxygen has been used to eliminate the pyrophoric nature of the reduced catalysts via their treatment by the mixtures of nitrogen, hydrogen or helium with oxygen at catalysis temperatures. Kinetic studies of oxygen sorption, catalyst structure, activity and stability to the secondary oxidation of the samples partially oxidized at various temperatures have revealed that the optimum temperatures to eliminate the pyrophoric effect are 673–773 K.
, . , , , 673–773 K.相似文献
95.
A. V. Gorodyskii V. V. Danilin O. N. Efimov N. E. Nechaeva V. N. Tsarev 《Reaction Kinetics and Catalysis Letters》1979,11(4):337-342
Electrochemical reduction studies of dinitrogen catalyzed by Ti(OH)3–Mo(III) in an alkaline methanol solution on a mercury cathode show that the maximum yield of hydrazine (4%) and ammonia (43%) is observed at 0.5 mA/cm2 current density. In experimental conditions it corresponds to the zero-charge potential of sodium amalgam (–1.86 V).
, T (OH)3–Mo(III), , (43%) (4%) 0.5 mA/cm2, .相似文献
96.
A. B. Aleksandrov A. V. Bagulya M. S. Vladimirov L. A. Goncharov A. I. Ivliev G. V. Kalinina L. L. Kashkarov N. S. Konovalova N. M. Okatieva N. G. Polukhina A. S. Rusetskii N. I. Starkov V. A. Tsarev 《Bulletin of the Lebedev Physics Institute》2008,35(7):205-210
A technique for identifying the charge of cosmic ray nuclei, based on measurements of the length and average etch rate of tracks chemically etched in olivine crystals from the Marjalahti pallasite is described. 相似文献
97.
The long-wavelength limit for radio radiation from high-energy particle cascades was calculated within the cascade theory taking into account the processes resulting in an negative excess. The results obtained were compared to the results of Monte Carlo numerical calculations. 相似文献
98.
V. I. Burkov L. A. Goncharova G. A. Gusev Zhang Gaobin K. Kobayashi Ksyu Jianhua E. V. Moiseenko N. G. Polukhina T. Saito V. A. Tsarev 《Bulletin of the Lebedev Physics Institute》2008,35(2):50-56
The first results of the RAMBAS (Radiation Mechanism of Biomolecular Asymmetry) experiment on the study of the radiation mechanism of the effect on chiral molecules as a factor leading to chiral asymmetry formation are presented. It was found that irradiation with an electron flux from a radioactive source of a mixture of simple achiral materials initiates synthesis of the simplest amino acids; in a racemic mixture of complexes of amino acids and metals irradiation leads to asymmetric decomposition and chrial asymmetry formation. The results obtained can be essential for solving the problem of the origin of life and the formation of chiral asymmetry of the biosphere. 相似文献
99.
S. V. Maslennikov M. V. Tsarev I. V. Spirina A. V. Lado V. P. Maslennikov A. A. Usanov 《Russian Journal of General Chemistry》2004,74(7):1101-1104
A procedure was developed for preparing [Cp(CO)2Fe]2SnCl2 by direct oxidation of tin with 5-cyclopentadienyldicarbonyliron chloride in polar solvents. The reaction kinetics was studied, and its scheme was suggested. Products of the reaction of magnesium with compounds R2SnCl2 [R = Cp(CO)3Mo, Cp(CO)3W, Cp(CO)2Fe] were identified. The reaction mechanism was discussed. 相似文献
100.
The interaction of microwave radiation with the plasma in photoionized semiconductor photocells (CdS, CdSe) placed in waveguide
measurement systems is investigated theoretically and experimentally. The interaction of the characteristic waveguide modes
with a photoexcited semiconductor plasma is investigated. The dependence of the reflection coefficient and phase of the microwave
radiation on the intensity of the optical radiation to be measured is obtained, and the influence of the surface of the semiconductor
photocells on these parameters is investigated. A microwave photodetector design based on a millimeter-wave interferometer
is developed.
Zh. Tekh. Fiz. 68, 94–98 (November 1998) 相似文献