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71.
G. A. Netesova V. V. Kotov I. M. Bodyakina A. L. Lukin 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2012,86(9):1429-1432
The rheological properties and mechanisms of a viscous flow of diluted apple pectin solutions are investigated. It is found that the rise in solution viscosity upon an increase in concentration and a drop in temperature is, along with the corresponding degree to which the interaction between pectin molecules and solvent is reduced, associated with the processes of structuring. The entropy of a viscous flow of pectin solutions is found to be positive: it grows with a rise in concentration is virtually temperature independent. It is established that the entropy factor makes the main contribution to the free energy value of a viscous flow. 相似文献
72.
73.
Russian Physics Journal - 相似文献
74.
Two models of tunneling charge exchange on interfacial states buried in the insulator are examined. In one model the spatial
distribution of these states is assumed to be uniform and in the other model the volume density of traps decreases exponentially
with increasing depth. Analytical expressions are obtained for the width and position of the peak in the normalizedconductance
curves in both models, and the accuracy and limitations of these expressions are indicated. A new procedure for investigating
interfacial states by the admittance method is proposed, based on the use of G-V characteristics of metal-insulator-semiconductor (MIS) structures measured at a fixed frequency.
Zh. Tekh. Fiz. 67, 55–59 (October 1997) 相似文献
75.
A. B. Zolotoi V. P. Sheverdov P. M. Lukin A. I. Prokhorov O. E. Nasakin L. O. Atovmyan 《Russian Chemical Bulletin》1989,38(12):2630-2630
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2867–2868, December, 1989. 相似文献
76.
Institute of Radiophysics and Electronics, Academy of Sciences of the Ukrainian SSR. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 31, No. 8, pp. 974–983, August, 1988. 相似文献
77.
78.
V. A. Rakityansky K. A. Lukin 《International Journal of Infrared and Millimeter Waves》1995,16(6):1037-1049
In the paper the characteristic properties of the chaotic oscillation excitation in millimeter Backward-Wave Oscillators are investigated. To enhance the interaction efficiency and provide the strong nonlinear working regimes of the oscillator the weak-resonant oscillatory system with large electrical length is proposed to use. It is shown, that in this case the oscillation automodulation with complicated power spectrum are developed for the smaller values of the working current to starting current ratio in comparison with BWO having matched oscillatory system. This allows to oscillate with high efficiency the continuous millimeter chaotic (noise) signals which have a wide enough power spectrum and integral power of about several watts. 相似文献
79.
Three new modules modelling the processes that occur in a deep geological repository have been prepared in the GoldSim computer
code environment (using its Transport Module). These modules help to understand the role of selected parameters in the near-field
region of the final repository and to prepare an own complex model of the repository behaviour. The source term module includes
radioactive decay and ingrowth in the canister, first order degradation of fuel matrix, solubility limitation of the concentration
of the studied nuclides, and diffusive migration through the surrounding bentonite layer controlled by the output boundary
condition formulated with respect to the rate of water flow in the rock. The corrosion module describes corrosion of canisters
made of carbon steel and transport of corrosion products in the near-field region. This module computes balance equations
between dissolving species and species transported by diffusion and/or advection from the surface of a solid material. The
diffusion module that includes also non-linear form of the interaction isotherm can be used for an evaluation of small-scale
diffusion experiments. 相似文献
80.
L. R. Saksonova V. I. Kononenko A. S. Shubin V. P. Remez N. I. Shchetkina T. A. Sinitsina N. V. Lukin M. V. Gridnevskii S. A. Perminov 《Russian Chemical Bulletin》1992,41(3):446-447
The structure and the qualitative composition of ferrocyanide sorbents on cellulose supports have been investigated. It has been shown that the inorganic component is retained on the support by the reaction of the active hydroxides of the cellulose with the CN groups of the ferrocyanide.Institute of Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg 620169. Kristall Scientific and Production Association (NPO), Ekaterinburg 620219. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 3, pp. 565–567, March, 1992. 相似文献