Sevastopol National Technical University

Sevastopol, Russia

Sevastopol National Technical University

Sevastopol, Russia
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Kalaev V.N.,Voronezh State University | Skamrova G.B.,Sevastopol National Technical University | Ignatova I.V.,Voronezh State University
Russian Journal of Genetics: Applied Research | Year: 2017

The buccal epithelium of male patients with paranoid schizophrenia at different stages of treatment was characterized by a reduced fraction of cells with micronuclei, central circular notches, “broken egg” protrusions, and an increased frequency of cells with karyorrhexis. A modified nonlinear frequency of binuclear cells, cells with karyolysis, “tongue” protrusions and perinuclear vacuoles, was observed. The fraction of cells with perinuclear vacuoles was increased in the spectrum of aberrations during the treatment. Patients with schizophrenia were divided into three groups differing in responses to the treatment of the cellular genetic apparatus. An enhanced stability of the genome of patients with schizophrenia was caused by the expressed antistress action of drugs used for complex therapy. © 2017, Pleiades Publishing, Ltd.


Yakovishin L.A.,Sevastopol National Technical University
Russian Journal of Bioorganic Chemistry | Year: 2016

Molecular complexes of triterpene glycosides such as α-hederin (hederagenin 3-O-α-L-rhamnopyranosyl-(1 → 2)-O-α-L-arabinopyranoside) and hederasaponin C (hederagenin 3-O-α-L-rhamnopyranosyl-(1 → 2)-O-α-L-arabinopyranosyl-28-O-α-L-rhamnopyranosyl-(1 → 4)-O-β-D-glucopyranosyl-(1 → 6)-O-β-D-glucopyranoside) with β-cyclodextrin were synthesized. The complex formation was studied by FTIR spectroscopy. Toxic properties of the molecular complexes were examined. © 2016, Pleiades Publishing, Ltd.


Yenivatov V.,Maritime State University | Fedorovsky K.,Sevastopol National Technical University | Zhelezniak A.,Maritime State University | Bordyug A.,Maritime State University
Journal of Physics: Conference Series | Year: 2017

In order to increase the reliability and safety of a floating nuclear power plant, the research proposes to apply closed-loop cooling systems for floating nuclear power plants' cooling. A ship hull is proposed to be used as a surface of the heat exchanger, known as a ship hull heat exchanger. This paper presents detailed study on the effect of the ship hull angle on the heat transfer coefficient and measures to improve the heat transfer coefficient. It is concluded that application of gas-liquid flows to the seaside surfaces of the ship hull is one of the most effective ways of improving the heat transfer coefficient.


Nesin D.Y.,CDB Corall | Dushko V.R.,Sevastopol National Technical University
Energy Procedia | Year: 2015

A numerical model of the large carrying capacity crane ship with the fully revolving topside is represented in the article. The model provides a way of determining the main crane ship's elements using version design approach with further system optimization. The principal analytical equations are set up in the article to solve that problem. Relationship between ship characteristics and elements is established from the point of view of providing initial stability. Once the model has been verified, an investigation of the influence of relative breadth and block coefficient on the displacement of the large carrying capacity crane ship in operating condition is performed. Based on the results of that investigation, the conclusions as to insufficiency of the condition of providing initial stability for system optimization of crane ships are made. © 2015 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.


Papkova Y.I.,Sevastopol National Technical University
Acoustical Physics | Year: 2015

The paper discusses simulation of the lower boundary of an acoustic waveguide. The applicability and relationship of rigid bottom and fluid half-space models are studied as a function of the bottom sediment parameters. The influence of bottom losses on the sound field characteristics in a waveguide is studied. Examples of numerical simulation are given. © 2015, Pleiades Publishing, Ltd.


Papkov S.O.,Sevastopol National Technical University
Acoustical Physics | Year: 2015

A new asymptotically exact solution is obtained for the problem of transverse vibrations of a rectangular orthotropic plate with free edges. The general solution to the vibration equation is constructed as the sum of Fourier series with unknown coefficients, which are related by a homogeneous quasi-regular infinite system of linear algebraic equations. Analysis of the infinite system makes it possible to determine the power-law asymptotics for a nontrivial solution to the system, which makes it possible to calculate the natural vibration frequencies and to construct the corresponding eigenmodes. Examples of numerical calculations for real materials are presented. © 2015, Pleiades Publishing, Ltd.


Gimpilevich Yu.B.,Sevastopol National Technical University | Zebek S.E.,Sevastopol National Technical University
CriMiCo 2014 - 2014 24th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings | Year: 2014

The mathematical model of a complex reflection coefficient meter for microwave devices is designed using the direct frequency conversion method. The model is represented by two independent equation systems, which are allow calculating a module and a phase of the complex reflection coefficient by two different ways using discrete analysis of an amplitude and phase field distribution in a transmission line. The model makes it possible to increase of measuring accuracy by an averaging procedure for obtained results. © 2014 CriMiCo'2014 Organizing Committee, CrSTC.


Trushkin A.N.,Sevastopol National Technical University
CriMiCo 2014 - 2014 24th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings | Year: 2014

The theoretical analysis of the mismatch errors of microwave channel elements in the meter of the integrated reflectance is carried out by means of the method of directed graphs. It is shown that due to the frequency selection of meter information, a significant portion of the spectral components due to finite isolation between the reference and measuring channels turns to be outside the bandwidth of the electoral system. © 2014 CriMiCo'2014 Organizing Committee, CrSTC.


Schekaturin A.A.,Sevastopol National Technical University | Kovalchuk D.A.,Sevastopol National Technical University
CriMiCo 2014 - 2014 24th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings | Year: 2014

The method for constructing a linear polarization antenna with frequency scanning fulfilled on the basis of the logperiodic structure is proposed. Numerical simulations show that the proposed antenna can be fit with the feeder in a wide frequency band, and the shape of its pattern varies slightly with varying frequency. © 2014 CriMiCo'2014 Organizing Committee, CrSTC.


Degtyaryov A.N.,Sevastopol National Technical University
CriMiCo 2014 - 2014 24th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings | Year: 2014

It is proposed to decompose a signal into a series of functions that are orthogonal with weight, which can be both positive and negative values. It is shown that in this case there are two criteria for evaluating the mean square error of this approximation. It is expedient to use one of the criteria to assess the effect of noise for the correct reception. This criterion allows determining the form of the basis functions, which minimize the error. The second criterion should be used to determine the approximation signal error as finite sum of the series. If the basis functions are equidistant, the error is minimized by determining the displacement intervals of basis functions. © 2014 CriMiCo'2014 Organizing Committee, CrSTC.

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