59 Result(s)

Article

Optical Spectra of Composite Materials Based on Molybdenum-Containing Nanoparticles and High-Pressure Polyethylene

Molybdenum-containing composite nanomaterials are synthesized by the thermal decomposition of molybdenum hexacarbonyl in a solution-melt of polyethylene in mineral oil. The concentration of a metal-containing ...

A. S. Fionov, V. V. Kolesov, V. A. Fionova… in Russian Journal of Physical Chemistry B (2023)

Article

Comparison of the Effect of Nuclear Data Uncertainty on the Accuracy of Prediction of the Isotope Composition for UO₂ and MOX Fuel in Burnup Calculations for a PWR Cell

The uncertainty of quantification of nuclide density is estimated in the calculations of the burnup of UO₂ and MOX fuel in the PWR cell due to the error in the neutron flux and uncertainties in the cross sections...

A. N. Pisarev, V. V. Kolesov in Physics of Atomic Nuclei (2023)

Article

Peculiarities of Changes in the Isotopic Composition of Pilot Fuel Elements of a VVER-SKD Reactor under Successive Irradiation in a Fast and Thermal Neutron Spectrum

The paper considers the methodological aspects of experiments planning on the irradiation of experimental fuel rods of a VVER-SKD reactor and analyzes the features of the concept of sequential irradiation in f...

V. Yu. Blandinsky, V. V. Kolesov, V. A. Nevinitsa… in Physics of Atomic Nuclei (2023)

Article

Improvement of Methods for Studying the Electrophysicala Viscous Properties of Liquids

To control the physical properties of polar and nonpolar liquid media, the parameters of model systems based on paraffin and silicone oils, as well as glycerin, were measured using electrophysical and acoustoe...

E. S. Shamsutdinova, V. I. Anisimkin, A. S. Fionov, A. V. Smirnov… in Acoustical Physics (2023)

Article

Autonomous System for Energy Collection and Conversion Based on a Biofuel Cell

Functioning of a prototype of a micropower system (energy storage device) consisting of a biofuel cell (BFC) and converter–capacitor is demonstrated. The system allows conversion of a low input voltage from an...

V. V. Kolesov, A. V. Smirnov, M. M. Serebrov… in Journal of Communications Technology and E… (2023)

Article

Bacterial Cellulose as a Matrix for Microorganisms in Bioelectrocatalytic Systems

Bacterial cellulose (BC) produced by the Komagateibacter sucrofermentas VKPM B-11267 bacteria was used as a carrier for immobilization of acetic acid bacteria Gluconobacter oxydans in amperometric biosensors. The...

S. E. Tarasov, Yu. V. Plekhanova, A. E. Kitova… in Applied Biochemistry and Microbiology (2022)

Article

Studying the Structural and Piezoelectric Properties of PVDF Films Obtained Using Langmuir‒Blodgett Technology

Results are presented from studying the acoustic properties of polyvinylidene fluoride (PVDF) films of different thicknesses obtained using Langmuir‒Blodgett technology. The effect the number of monomolecular ...

I. A. Gorbachev, A. V. Smirnov… in Bulletin of the Russian Academy of Science… (2021)

Article

Thermohydraulic Calculation of the Maximum Fuel and Water Temperature in the MAK-2 Facility

The maximum coolant temperature in the VVR-Ts MAK-2 loop facility for the production of ⁹⁹Mo was analyzed. The calculations showed that adequate accuracy and temperature 96.3°C are attained using more than 10⁶ gr...

O. Yu. Kochnov, V. V. Kolesov, A. S. Zevyakin, R. V. Fomin in Atomic Energy (2020)

Article

Possibility of Increasing the Number of Experimental Channels in VVR-Ts by Changing the Core Design

The modernization of the VVR-Ts core by installation of beryllium reflectors was analyzed. Calculations showed that the arrangement of beryllium blocks in six cavities at the core periphery makes it possible t...

O. Yu. Kochnov, V. V. Kolesov, R. V. Fomin, P. A. Fomichenko in Atomic Energy (2019)

Article

An Acousto-Electric Nanobiosensor

A technology is developed that uses two multiscale structures on a single crystal piezoelectric substrate of lithium niobate. A system of counter-pin electrodes for an acoustic delay line operating in the 2–3 ...

A. E. Melnikov, E. S. Soldatov… in Bulletin of the Russian Academy of Science… (2019)

Article

Formation of Superhard Chromium Carbide Crystal Microrods in Ni–Cr–C Systems

Ni–Cr–C materials with a high hardness determined by the presence of regions consisting of Cr₃C₂ microrods with a record microhardness reaching 3200 kg/mm² have been obtained. Their self-organization in a powder ...

V. P. Val’chuk, D. S. Zmienko, V. V. Kolesov, L. A. Chernozatonskii in JETP Letters (2018)

Article

Electrophysical and acoustic properties of magnetic elastomers structured by an external magnetic field

Magnetoactive elastomers are promising for use in designing of magnetically operated devices for signal processing and sensors. The results from studying the electrophysical and acoustic properties of new magn...

I. E. Kuznetsova, V. V. Kolesov… in Bulletin of the Russian Academy of Science… (2017)

Article

Measurement of the Power Coefficient of Reactivity of VVR-Ts in a Wide Power Range

The power coefficient of reactivity of VVR-Ts was previously determined only in the range 10–11 MW. The aim of the present work was to determine the power coefficient of reactivity in the range 1–10 MW. The ex...

V. V. Kolesov, D. S. Samokhin, O. Yu. Kochnov in Atomic Energy (2017)

Article

Effect of some carbon nanomaterials on ethanol oxidation by Gluconobacter oxydans bacterial cells

The effect of carbon nanomaterials (carbon nanotubes, thermally expanded and pyrolytic graphite) on the bioelectrochemical activity of Gluconobacter oxydans bacterial cells was studied during sorption contact wit...

A. N. Reshetilov, Yu. V. Plekhanova, S. E. Tarasov… in Applied Biochemistry and Microbiology (2017)

Article

Burnup Time Dependence of the Axial and Radial Nonuniformity of the Plutonium Isotope Distribution in RBMK-1000 Fuel Assemblies

V. V. Kolesov, V. I. Belozerov, S. O. Timofeev, D. S. Samokhin… in Atomic Energy (2016)

Article

Improvement of the Neutron-Physical Characteristics of the VVR-Ts Reactor by Substituting a Beryllium Reflector for Some Fuel Assemblies in the Core

The results of computational studies of the possibility of using beryllium reflectors to improve the neutronphysical characteristics of the VVR-Ts reactor, which is used at the Karpov Research Institute of Phy...

O. Yu. Kochnov, V. V. Kolesov, R. V. Fomin in Atomic Energy (2015)

Article

Occurrence of quasiperiodic flows between two rotating permeable cylinders

This paper considers viscous incompressible fluid flows between two infinite rotating permeable concentric cylinders near the bifurcation point, which result in secondary steady flow and oscillations with azim...

V. V. Kolesov, M. N. Romanov in Journal of Applied Mechanics and Technical Physics (2014)

Article

Creating planar electrode systems for biosensors

A planar topology for a nanoelectronic transducer based on glucose oxidase is designed for use in an enzymatic biosensor. Electromigration is used to create 5-nm gaps in Au nanowires. A method for the chemical...

A. A. Parshintsev, E. S. Soldatov… in Bulletin of the Russian Academy of Science… (2014)

Article

Chaos generation in the Couette-Taylor problem for permeable cylinders

The methods of the bifurcation theory of codimension two, together with computer calculations, are used to investigate stationary, periodic, and quasiperiodic flows with two and three independent frequencies, ...

V. V. Kolesov, M. N. Romanov in Fluid Dynamics (2013)

Article

Extraction purification of light gas oils of secondary oil refining processes

Diesel oil component and aromatized extract with a high sulfur content have been obtained by extraction purification of mixtures of catcracking and visbreaking light gas oils using N,N-dimethyl formamide in th...

A. A. Gaile, V. N. Chistyakov… in Chemistry and Technology of Fuels and Oils (2012)