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The activity of nitride catalysts varies in parallel to the degree of metal character of their chemical bonds.
.相似文献
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N. G. Bakhshiev S. K. Gularyan G. E. Dobretsov A. Yu. Kirillova V. Yu. Svetlichnyĭ 《Optics and Spectroscopy》2007,103(5):741-744
The 4-dimethylaminochalcone molecule is one of the most efficient spectral-luminescent probes widely used in various medical and biological studies. Experimental data on the oscillator strengths in the long-wavelength vibronic band of 4-dimethylaminochalcone solutions in a series of individual solvents of different chemical nature are analyzed using the earlier derived refined equation describing the influence of nonspecific solvation processes on the matrix elements of the dipole moment of a purely electronic transition in organic dye molecules. It is shown that the semiempirical theory developed gives a satisfactory quantitative explanation to experimentally observed regularities indicative of a relatively weak influence of the solvent reaction field (orientation and induction forces) and dispersion interactions on the integrated intensity of the studied band belonging in the category of intramolecular charge transfer bands. 相似文献
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L. A. Kirillova 《Nonlinear Oscillations》2005,8(1):14-25
We study the problem of asymptotics of unbounded solutions of differential equations of the form y″ = α0
p(t)ϕ(y), where α0 ∈ {−1, 1}, p: [a, ω[→]0, +∞[, −∞ < a < ω ≤ +∞, is a continuous function, and ϕ: [y
0, +∞[→]0, +∞[ is a twice continuously differentiable function close to a power function in a certain sense.__________Translated from Neliniini Kolyvannya, Vol. 8, No. 1, pp. 18–28, January–March, 2005. 相似文献
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R. Gabasov N. M. Dmitruk F. M. Kirillova 《Computational Mathematics and Mathematical Physics》2011,51(7):1128-1145
The problem of optimal control of a group of interconnected dynamical objects under uncertainty is considered. The cases are
examined in which the centralized control of the group of objects is impossible due to delay in the channel for information
exchange between the group members. Optimal self-control algorithms in real time for each dynamical object are proposed. Various
types of a priori and current information about the behavior of the group members and about uncertainties in the system are
examined. The proposed methods supplement the earlier developed optimal control methods for an individual dynamical system
and the methods of decentralized optimal control of deterministic objects. The results are illustrated with examples. 相似文献
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Kharlamov A. I. Kirillova N. V. Kharlamova A. A. 《Theoretical and Experimental Chemistry》2002,38(6):357-362
It was found for the first time that carbon nanotubes are formed during the mechanical treatment of V2O5 powder in the presence of an organic solvent. The carbon content in the V2O5 sample, dispersed in alcohol, varies during milling and amounts to 2.1 wt.%. The unusually large increase in the catalytic activity of mechanically activated V2O5 in the selective oxidation of n-butane and also of benzene and propane is due to the formation of new active centers containing carbon inserted into the V2O5 structure. 相似文献