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Abraimov N.V.,Zhukovsky Gagarin Air Force Academy | Shkretov Y.P.,Salut Gas Turbine Engineering RPC | Minakov A.I.,Salut Gas Turbine Engineering RPC
Protection of Metals and Physical Chemistry of Surfaces | Year: 2014

Isothermal oxidation of nickel alloy containing (wt %) Ni (main), Cr 25.1, Co 26.3, W 10.3, Ti 1.9, and Mo 1.2 has been studied at 1100 and 1200°C in air. It has been found that disperse particles of titanium nitride increase the alloy heat-resistance. Alumosiliconizing of the alloy strengthened by nitride particles to a depth of 45–50 μm decreases by an order of magnitude the oxidation rate of alloy strengthened by disperse particles of titanium nitride at 1100 and 1200°C. © 2014, Pleiades Publishing, Ltd.

Mayorova T.L.,Zhukovsky Gagarin Air Force Academy | Klyuev V.G.,Voronezh State University | Zvyagin A.I.,Voronezh State University
Nanotechnologies in Russia | Year: 2015

The influence of the photoexcitation intensity on the value of the stationary photocurrent in pure and Li-doped pyrolitic CdS films with a nanostructured surface has been studied. The brightness dependence of the photocurrent of the structures under study is approximated by a power function whose power index is a decay function of the excitation intensity. The unusual peculiarity of the photocurrent dependence on illumination intensity is explained by a modulation of the surface potential barriers for the drift and recombination of nonequilibrium charge carriers. © Pleiades Publishing, Ltd., 2015.

Mokshina N.Y.,Zhukovsky Gagarin Air Force Academy | Bykovskii D.V.,Voronezh State University | Shatalov G.V.,Voronezh State University | Pakhomova O.A.,Yelets State Ivan Bunin University
Journal of Analytical Chemistry | Year: 2016

Results of the extraction separation of binary mixtures of histidine, proline, and methionine using water-soluble homo- and copolymers with different molecular weights are presented. The recoveries and separation factors in the systems methionine–proline and histidine–proline are calculated. Amino acids were quantitatively determined by spectrophotometry using their intrinsic absorption in the UV spectral region. The efficiency of amino acid separation was increased using systems additionally containing chloride ions, which facilitate complex formation. © 2016, Pleiades Publishing, Ltd.

Semenov M.,Voronezh State University | Kabulova E.,National University of Science and Technology | Mikhailov V.,Zhukovsky Gagarin Air Force Academy | Kanisheva O.,Voronezh State University
Journal of Theoretical and Applied Information Technology | Year: 2015

The article provides a synchronization model of biological neurons based on the hysteretic properties of metabotropic receptive clusters. We study the properties of the proposed model and various variants of connections between individual neurons. The advantage of the proposed model is its ‘ordered’ response to external environment, which is determined by the hysteretic connection between individual neurons. The described biological neural network model may find application in the segmentation tasks and classification with efficiency exceeding standard numerical algorithms of data handling. © 2005 - 2015 JATIT & LLS. All rights reserved.

Petrov N.V.,Saint Petersburg State University of Information Technologies, Mechanics and Optics | Pavlov P.V.,Zhukovsky Gagarin Air Force Academy | Malov A.N.,Irkutsk State Medical University
Quantum Electronics | Year: 2013

Using the equations of scalar diffraction theory we consider the formation of an optical vortex on a diffractive optical element. The algorithms are proposed for simulating the processes of propagation of spiral wavefronts in free space and their reflections from surfaces with different roughness parameters. The given approach is illustrated by the results of numerical simulations. © 2013 Kvantovaya Elektronika and Turpion Ltd.

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