Russian Journal of Physical Chemistry B

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Dependence of the Knock Threshold of an H2-Air Mixture With Small Xe Additives
Russian Journal of Physical Chemistry B - Tập 15 - Trang 250-258 - 2021
G. A. Atanov, V. M. Ezhov, S. V. Kulikov, O. A. Papanov, N. A. Chervonnaya
The effect of a small addition of Xe on the conditions for the occurrence of detonation in an incident shock wave (SW) with a change in its intensity is studied. The experiments are carried out in a shock tube (ST) with mixtures (75 – q)% H2 + 25% air + q% Xe, where q = 0, 0.25, and 0.5. The addition of Xe leads to a shift in the detonation threshold to the region where the conditions are more unf...... hiện toàn bộ
Mixing of Biodegradable Polymeric Solutions under Ultrasonic Dispersion and Microwave Heating Conditions
Russian Journal of Physical Chemistry B - Tập 13 - Trang 165-169 - 2019
V. N. Gorshenev
A method using ultrasonic dispersion and thermally stimulated microwave heating is proposed to mix solutions and suspensions. Some results of the mixing of biodegradable polymers in chloroform with aqueous suspensions of natural polymers are presented. The mixing of a polymeric solution with a magnetic liquid is considered. It is established that the proposed method allows the mixing of polymeric ...... hiện toàn bộ
Creation of Two-Dimensional High Temperature Superconductivity Under the Influence of an Electric Field
Russian Journal of Physical Chemistry B - Tập 17 - Trang 783-789 - 2023
V. L. Bodneva, M. A. Kozhushner, B. V. Lidskii, V. S. Posvyanskii, L. I. Trakhtenberg
This study discusses the conditions for the occurrence of two-dimensional superconductivity under the action of an electric field on an La2 – xSrxCuO4 plate at a temperature lower than the maximum temperature of the superconducting transition, but when the concentration of charge carriers falls outside the superconductivity range. The study is carried out for a lanthanum-strontium cuprate plate at...... hiện toàn bộ
Effect of hydrogen additives on the self-ignition of rich oxygen methane-propane mixtures
Russian Journal of Physical Chemistry B - Tập 8 - Trang 866-869 - 2015
A. A. Borisov, K. Ya. Troshin, G. I. Skachkov, Yu. A. Kolbanovskii, I. V. Bilera
The effect of small hydrogen additives on the ignition of rich oxygen methane-propane mixtures, which imitated associated petroleum gas, was studied at elevated pressures in a static reactor. The experiments showed that the additions of hydrogen increased the ignition temperature of the mixtures by approximately 140 K; that is, they inhibited the ignition of hydrocarbon mixtures at low temperature...... hiện toàn bộ
A new approach to comparison of original pharmaceuticals and generics based on comparison of multidimensional impurity profiles using supercritical fluid extraction, liquid extraction, and GC-MS
Russian Journal of Physical Chemistry B - Tập 5 - Trang 1245-1249 - 2012
A. I. Revel’skii, I. N. Glazkov, Yu. S. Yashin, D. A. Chepelyanskii, A. S. Samokhin, D. A. Burmykin, I. A. Revel’skii
This paper reports on our effort to study the possibility of comparing the original pharmaceuticals and their analogs (generics) based on comparisons of the multidimensional profiles of impurities isolated from samples by supercritical fluid extraction and liquid extraction and recorded by gas chromato-mass spectrometry (GC-MS) with electron ionization (EI) and atmospheric pressure photochemical i...... hiện toàn bộ
Photo–induced processes in Ag and Eu β-diketonates incorporated into aerogel matrix of silicon dioxide by supercritical fluid impregnation
Russian Journal of Physical Chemistry B - Tập 9 - Trang 1137-1142 - 2016
A. O. Rybaltovskii, V. G. Arakcheev, A. N. Bekin, A. F. Danilyuk, V. I. Gerasimova, N. V. Minaev, E. N. Golubeva, O. O. Parenago, V. N. Bagratashvili
Samples of silicon dioxide aerogel with embedded Ag and Eu β-diketonate molecules are obtained by impregnation in supercritical carbon dioxide (SC-CO2). The sample impregnated by Eu(tta)3 molecules possesses photoluminescence properties. Moreover, adsorption of Eu(tta)3 on the walls of the pores results in a strong broadening of the Stark components of its photoluminescence spectra. It is found th...... hiện toàn bộ
Kinetic Model of Gas Formation in a Finely Dispersed Condensed System
Russian Journal of Physical Chemistry B - Tập 16 Số 5 - Trang 890-901 - 2022
V. A. Dubovit︠s︡kiĭ, V. V. Barelko, З. С. Андрианова, L. N. Gak
Comparison of the Mesopause Temperature Measured at Different-Latitude Stations
Russian Journal of Physical Chemistry B - Tập 12 - Trang 538-542 - 2018
I. I. Koltovskoi, P. P. Ammosov, G. A. Gavrilyeva, A. M. Ammosova, V. I. Sivtseva
Since 2013, the optical station of Maimaga (63° N, 129.5° E) has been continuously recording the OH(3,1) hydroxyl band with a spectrograph operating in the near-infrared region (~1.5 μm). In September 2015, a similar spectrograph was mounted at the polar geophysical observatory located in the Tiksi urban locality (71.6° N, 128.7° E). The present work compares the seasonal variation of the mesopaus...... hiện toàn bộ
Use of Matrices Made of Permeable Wire Material in Infrared Burners
Russian Journal of Physical Chemistry B - Tập 11 - Trang 937-941 - 2018
N. Ya. Vasilik, V. S. Arutyunov, A. A. Zakharov, V. M. Shmelev
The characteristics of surface-combustion IR burners with permeable wire material matrices operating on natural gas−air mixtures are studied. The experiments are carried out with matrices of two designs: a flat two-layer matrix and a volumetric cylindrical matrix. The composition of the combustion products is determined, and the temperatures of the working surface and the back surface of the matri...... hiện toàn bộ
The kinetics of carbon nanostructure 2D–3D transformation
Russian Journal of Physical Chemistry B - Tập 1 - Trang 675-684 - 2007
I. V. Lebedeva, A. A. Knizhnik, B. V. Potapkin
The gas-phase process of formation of carbon nanostructures in an arc discharge plasma is considered. Most attention is paid to one of the key stages of the formation of these nanostructures, the transformation of plane structures into three-dimensional. The rolling up of a plane graphite sheet into a nanostructure similar to fullerene or a nanotube was simulated by the molecular dynamics method. ...... hiện toàn bộ
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