Search Results - "Polyakov, V. B."

Simultaneous Calculation of Chemical and Isotope Equilibria Using the GEOCHEQ_Isotope Software: Oxygen Isotopes by Polyakov, V. B., Mironenko, M. V., Alenina, M. V.

“…— The GEOCHEQ_Isotope software package, elaborated previously for modeling chemical and carbon isotope equilibria in hydrothermal and hydrogeochemical systems…”
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Equilibrium-Kinetic Calculation of Olivine Serpentinization. A Comparison with the Model Experiment by Mironenko, M. V., Sidkina, E. S., Polyakov, V. B.

“…— The GEOCHEQ_M and GEOCHEQ_Isotope databases and codes were used to simulate the evolution of chemical interactions with time in the closed systems aqueous…”
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Iron and Sulfur Isotope Factors of Pyrite: Data from Experimental Mössbauer Spectroscopy and Heat Capacity by Polyakov, V. B., Osadchii, E. G., Voronin, M. V., Osadchii, V. O., Sipavina, L. V., Chareev, D. A., Tyurin, A. V., Gurevich, V. M., Gavrichev, K. S.

“…Mössbauer spectra of pyrite (FeS 2 ) are measured within a temperature range of 90–295 K. The isomer shift is described by the Debye model with a Mössbauer…”
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Simultaneous Calculation of Chemical and Isotope Equilibria Using the GEOCHEQ_Isotope Software: Carbon Isotopes by Mironenko, M. V., Polyakov, V. B., Alenina, M. V.

“…— The program package GEOCHEQ_Isotope was developed for the simultaneous calculation of chemical and isotope equilibria in hydrothermal and hydrochemical…”
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Pressure effects on the reduced partition function ratio for hydrogen isotopes in water by Polyakov, V.B., Horita, J., Cole, D.R.

“…We have developed a simple, yet accurate theoretical method for calculating the reduced isotope partition function ratio (RIPFR) for hydrogen of water at…”
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Dispersed Carbon in Basalts of the Altered Oceanic Crust: Isotope Composition and Mechanisms of Formation by Polyakov, V. B., Shilobreeva, S. N.

“…Carbon contents and isotopic compositions were compared in the basalt groundmass of the oceanic crust of different age in the zone of the East Pacific Rise. In…”
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Isotopic Self-Exchange Reactions of Water:  Evaluation of the Rule of the Geometric Mean in Liquid−Vapor Isotope Partitioning by Polyakov, V. B, Horita, J, Cole, D. R

“…Deviations from the random distribution of hydrogen isotopes among isotopic species of liquid and vapor water (the rule of the geometric mean) were critically…”
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Equilibrium iron isotope fractionation factors of minerals: Reevaluation from the data of nuclear inelastic resonant X-ray scattering and Mössbauer spectroscopy by Polyakov, V.B., Clayton, R.N., Horita, J., Mineev, S.D.

“…We have critically reevaluated equilibrium iron isotope fractionation factors for oxide and sulfide minerals using recently acquired data obtained by Mössbauer…”
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Oxygen isotope fractionation factors involving cassiterite (SnO 2): I. calculation of reduced partition function ratios from heat capacity and X-ray resonant studies by Polyakov, V.B., Mineev, S.D., Clayton, R.N., Hu, G., Gurevich, V.M., Khramov, D.A., Gavrichev, K.S., Gorbunov, V.E., Golushina, L.N.

“…Oxygen isotope equilibrium fractionation constants (β 18O-factors) of cassiterite were evaluated on the basis of heat capacity and X-ray resonant (Mössbauer…”
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Calculation of equilibria in CO2–water–salt systems using the Frezchem model by Mironenko, M. V., Polyakov, V. B., Marion, G. M.

“…This paper described the approach to the calculations of chemical equilibria in multicomponent systems containing water, salt, and liquid CO2. In previous…”
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Effects of Calcium Compounds on the Steam Gasification of Сarbonized Brown Coal by Kuznetsov, P. N., Kamenskii, E. S., Kuznetsova, L. I., Polyakov, B. V., Kolesnikova, S. M.

“…The results of a study of the steam gasification of carbonized brown coal samples at 700°C depending on the composition of mineral components, textural…”
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A Digital Electrocardiographic System for Assessing Myocardial Electrical Instability: Principles and Applications by Vorobiev, A P, Vaykhanskaya, T G, Melnikova, O P, Krupenin, V P, Polyakov, V B, Frolov, A V

“…was to develop an ECG hardware and software system for monitoring electrical instability of the myocardium and to assess the diagnostic and prognostic…”
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Isotopic Self-Exchange Reactions of Water: Evaluation of the Rule of the Geometric Mean in Liquid−Vapor Isotope Partitioning by Polyakov, V. B, Horita, J, Cole, D. R

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Preparation and properties of sorbents from the coals of Mongolia by Kamenskii, E. S., Manina, T. S., Kuznetsov, P. N., Ismagilov, Z. R., Polyakov, B. V., Suboch, G. A.

“…The textural and sorption properties of sorbents prepared by the thermal steam activation of the semicokes of brown and black coals from nine deposits of…”
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The heat capacity of Au2S(cr) at low temperatures and derived thermodynamic functions by Gurevich, V.M, Gavrichev, K.S, Gorbunov, V.E, Baranova, N.N, Tagirov, B.R, Golushina, L.N, Polyakov, V.B

“…The heat capacity of synthetic crystalline gold sulfide, Au2S, was determined from 14 to 309K. Fitting of the heat capacity curve yields the following values…”
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Low-temperature heat capacity of tin dioxide: new standard data on thermodynamic functions by Gurevich, V.M., Gavrichev, K.S., Polyakov, V.B., Clayton, R.N., Mineev, S.D., Hu, G., Gorbunov, V.E., Golushina, L.N.

“…The heat capacity of tin dioxide was measured at low temperatures by the adiabatic calorimeter technique. The measurements were conducted for two samples of…”
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Determination of tin equilibrium isotope fractionation factors from synchrotron radiation experiments by Polyakov, V.B., Mineev, S.D., Clayton, R.N., Hu, G., Mineev, K.S.

“…A method of determination of the reduced isotopic partition function ratio (β-factor) from the partial density of state (PDOS) obtained by inelastic nuclear…”
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On algorithm for the calculation of the equilibrium composition of water-salt systems on the basis of the Pitzer model by Mironenko, M. V., Polyakov, V. B.

“…Calculating the equilibrium composition of systems under given conditions (usually, temperature and pressure) is a core in the majority of the existing…”
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Simulation of molecular mass distributions and evaluation of O2− concentrations in polymerized silicate melts by Ariskin, A. A., Polyakov, V. B.

“…A new statistical model is proposed for the molecular mass distributions (MMD) of polymerized anions in silicate melts. The model is based on the known…”
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Multi-Criteria Selection of the Radar Data Compression Method by Polyakov, V. B., Ignatova, N. A., Sentsov, A. A.

“…The methods of compression of radar images are considered, the requirements for the method of compression of radar images in on-board devices used to increase…”
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