Russian Journal of Physical Chemistry B

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Effect of treatment in supercritical CO2 on the composition and structure of tealeaf and cellulose
Russian Journal of Physical Chemistry B - Tập 5 - Trang 1167-1172 - 2012
F. N. Shamsetdinov, L. Yu. Yarullin, F. M. Gumerov, F. R. Gabitov, Z. I. Zaripov, A. B. Remizov, I. M. Kolyadko, V. G. Nikitin, A. K. Fakhreev, D. I. Kamalova
The influence of the pretreatment procedures with supercritical CO2 (SC-CO2) on the elemental composition of tealeaf is studied. Fourier-transform infrared absorption spectroscopy is used to examine the effect of SC-CO2 on the structure of Chinese green tea and cellulose.
Synchronized Detection of X-Ray and Secondary Fluorescent Radiation of a Sample by Monophoton Sensors
Russian Journal of Physical Chemistry B - Tập 17 - Trang 796-800 - 2023
A. P. Kalinin, V. V. Egorov, A. I. Rodionov, I. D. Rodionov, I. P. Rodionova
The structure of a device designed to detect X-ray and optical photons ascending from a sample irradiated with synchrotron radiation or X-ray tube radiation and the principles of its operation are described. The operation of the device consists of determining the delay time of the specified optical photons relative to the X-ray photons. Block diagrams of the main components of the device, outlinin...... hiện toàn bộ
Effects of the Interaction of Microwave Radiation with the Atmosphere on the Passive Remote Sensing of the Earth’s Surface: Problems and Solutions (Review)
Russian Journal of Physical Chemistry B - Tập 12 - Trang 725-748 - 2018
G. V. Golubkov, M. I. Manzhelii, A. A. Berlin, A. A. Lushnikov, L. V. Eppelbaum
The main problems in the remote passive location of positions on the Earth’s surface are reviewed in detail. The first is related to the source of incoherent microwave radiation represented by a layer of two-temperature nonequilibrium ionospheric plasma at an altitude of ca. 80–110 km, which is located below a low Earth-orbiting satellite and formed under the influence of solar activity. As a resu...... hiện toàn bộ
Effectiveness of the third body in the direct recombination of ions
Russian Journal of Physical Chemistry B - Tập 8 - Trang 261-271 - 2014
E. V. Ermolova, L. Yu. Rusin
The dynamics of the three-body recombination of the Cs+ and Br− ions with the formation of products with the lowest internal energy in the presence of the neutral atoms R = Hg, Xe, and Kr as third bodies is studied. The efficiency of the process is characterized by the effectivity function, which represents the dependence of the internal energy of the nascent molecule on the ion encounter energy a...... hiện toàn bộ
Effect of the humidity on the uptake of NO3 on coatings composed of MgCl2 · 6H2O and MgBr2 · 6H2O and mixtures thereof with NaCl
Russian Journal of Physical Chemistry B - Tập 4 - Trang 399-407 - 2010
V. V. Zelenov, E. V. Aparina, A. V. Chudinov, S. A. Kashtanov
The reactive uptake of NO3 radicals on the surface of wetted individual X salts and of wetted X-NaCl salts (X = MgCl2 · 6H2O and MgBr2 · 6H2O) at [H2O] = 2 × 1012−2 × 1015 cm−3 and NO3 (4.8 × 1012 cm−3) was studied using a reactor with a movable insert covered with a salt coating in combination with a mass spectrometer for monitoring the initial reactant and products. The probabilities of NO3 upta...... hiện toàn bộ
Nonlinear Kinetic Conservation Laws in Nonlinear Chemical Reactions
Russian Journal of Physical Chemistry B - Tập 15 - Trang 954-959 - 2022
N. I. Kol’tsov
A method is developed for establishing new nonlinear kinetic conservation laws in chemical reactions proceeding in an open isothermal gradientless reactor according to nonlinear mechanisms that include the stages of the transformation of the initial substances, while disregarding the stages of their formation. These laws are a kind of multiexperimental autonomous kinetic invariants that can be obt...... hiện toàn bộ
Anomalous diffusion in the dynamics of complex processes
Russian Journal of Physical Chemistry B - - 2009
S. F. Timashev
It is shown that complex signals represented in the form of time series of measured dynamic variables can contain chaotic components whose time changes can be described as anomalous diffusion processes. To determine the parameters of such processes, procedures for the extraction of low-frequency and highest-frequency flicker-noise components, which are flicker-noise spectroscopy characteristics, s...... hiện toàn bộ
The chiral effect of adsorption of univalent atoms and diatomic molecules on the surface of carbon nanotubes
Russian Journal of Physical Chemistry B - Tập 6 - Trang 448-454 - 2012
E. N. Shamina, N. G. Lebedev
Quantum-chemical semiempirical calculations were performed of the adsorption of fluorine and hydrogen atoms and molecules on the surface of single-layered carbon nanotubes with various diameters. Semiempirical quantum-chemical MNDO calculations were based on the model of a molecular cluster with boundary pseudoatoms. The energy characteristics of adsorption were determined. Changes in physical pro...... hiện toàn bộ
Gasless combustion wave with extremely high excess enthalpy under heat loss conditions
Russian Journal of Physical Chemistry B - Tập 5 - Trang 110-115 - 2011
B. L. Kopeliovich
A numerical experiment on investigation of a gasless combustion wave propagating at the limit due to a high excess enthalpy in the heating zone is performed. Under heat loss conditions, waves emerge on the surface of the combustion front, causing changes in the rate of chemical reactions similar to those realized on the burning surface of propellants and explosives.
The Mutual Influence of the Turbulence Coefficient and Reynolds Number on the Formation of a Turbulent Process: 1. The Randomness Coefficient
Russian Journal of Physical Chemistry B - - 2023
I. V. Lebed
The equations of multimoment hydrodynamics, supplemented by stochastic components, are used to study the chaotic distortion of a regular flow in the wake of a sphere. The mutual influence of the Reynolds number and the intensity of weak disordered perturbations in the incident flow, characterized by the turbulence coefficient, is investigated. The calculations show that the turbulent flow pattern ...... hiện toàn bộ
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