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Nizhniy Novgorod, Russia

Perova T.V.,Lobachevsky University | Kustov T.V.,Saint Petersburg Electrotechnical University l
2015 4th Forum Strategic Partnership of Universities and Enterprises of Hi-Tech Branches (Science. Education. Innovation) | Year: 2015

The article deals with the most current students' career development and employment promotion technologies. The paper describes the experience of the career center Lobachevsky university. The structure and main activities of the student council's Potential activity of the Career Centre. © 2015 IEEE.

Agrba P.D.,Lobachevsky University | Kirillin M.Y.,RAS Institute of Applied Physics
Photonics and Lasers in Medicine | Year: 2016

Optical coherence tomography (OCT) is a modern technique for imaging of internal structures of biotissue of up to several millimeters in depth with a resolution of several micrometers. However, various external conditions can distort the diagnostic capabilities of an OCT image. Mechanical compression and temperature regime are the two conditions which mostly affect the diagnostic OCT images obtained with a contact probe. It is shown here that the application of compression to human skin induces a decrease in contrast of the stratum corneum-epidermis junction and an increase in contrast of the epidermis-dermis junction. With regard to these junctions, a preliminary change of biotissue temperature induces additional changes in the contrast, with opposing effects in case of heating and cooling. © 2016 by De Gruyter 2016.

Buntov E.,Ural Federal University | Zatsepin A.,Ural Federal University | Slesarev A.,Ural Federal University | Mikhailovich A.,Ural Federal University | Mikhaylov A.,Lobachevsky University
Physica Status Solidi (A) Applications and Materials Science | Year: 2015

SiO2 films, grown on a Si substrate and implanted with Li, Na, and K ions were studied by means of optically stimulated electron emission spectroscopy (OSEE). Interference effects of exciting light were observed in OSEE spectra. Application of original normalization technique allowed to compensate interference fringes in the experimental results. Three categories of defect states were identified and studied: intrinsic luminescent, emission-active silica defect centers, and implanted cation-related localized states. © 2015 Wiley-VCH Verlag GmbH and Co. KGaA, Weinheim.

Belov A.,Lobachevsky University | Mikhaylov A.,Lobachevsky University | Korolev D.,Lobachevsky University | Guseinov D.,Lobachevsky University | And 8 more authors.
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms | Year: 2016

The principles of ion-beam simulation of the effect of fast (fission) neutrons and high-energy protons based on medium-energy ion irradiation have been developed for the Au/Zr/SiO2/TiN/Ti capacitor-like memristive nanostructures demonstrating the repeatable resistive switching phenomenon. By using the Monte-Carlo approach, the irradiation fluences of H+, Si+ and O+ ions at the energy of 150keV are determined that provide the ionization and displacement damage equivalent to the cases of space protons (15MeV) and fission neutrons (1MeV) irradiation. No significant change in the resistive switching parameters is observed under ion irradiation up to the fluences corresponding to the extreme fluence of 1017 cm-2 of space protons or fission neutrons. The high-level radiation tolerance of the memristive nanostructures is experimentally confirmed with the application of 15MeV proton irradiation and is interpreted as related to the local nature of conducting filaments and high concentration of the initial field-induced defects in oxide film. © 2016 Elsevier B.V.

Kudrin A.V.,Lobachevsky University | Kudrina O.A.,Lobachevsky University | Petrov E.Y.,Lobachevsky University
Journal of Experimental and Theoretical Physics | Year: 2016

We consider electromagnetic nonlinear normal modes in cylindrical cavity resonators filled with a nonlinear nondispersive medium. The key feature of the analysis is that exact analytic solutions of the nonlinear field equations are employed to study the mode properties in detail. Based on such a nonperturbative approach, we rigorously prove that the total energy of free nonlinear oscillations in a distributed conservative system, such as that considered in our work, can exactly coincide with the sum of energies of the normal modes of the system. This fact implies that the energy orthogonality property, which has so far been known to hold only for linear oscillations and fields, can also be observed in a nonlinear oscillatory system. © 2016, Pleiades Publishing, Inc.

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