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Creep and stress relaxation in the material of a cylindrical layer in its linear motion

Journal of Applied and Industrial Mathematics 2016年第4期10卷 505-510页

作者： Kovtanyuk, L.V. Panchenko, G.L. Institute of Automation and Control Processes ul. Radio 5 Vladivostok690041 Russia Institute of Engineering and Metallurgy ul. Metallurgov 1 Komsomolsk-na-Amure681005 Russia Vladivostok State University of Economics and Service ul. Gogolya 41 Vladivostok690014 Russia

Within the framework of the theory of large deformations, we consider deformation of some material with nonlinear elastic and viscous properties that is located in the gap between two rigid coaxial cylindrical surfaces when the inner surface moves rectilinearly. We study the uniformly acceleratedmotion of the inner cylinder, its subsequentmotion with a constant speed, and further deceleration till the full stop. We calculate stresses, reversible and irreversible deformations, displacements and study the stress relaxation after the full stop of the cylinder. © 2016, Pleiades Publishing, Ltd.

关键词： Stress relaxation

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Modeling multipole dielectric spherical nanoantenna for optical and THz range

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AIP Conference Proceedings 2017年第1期1874卷

作者： Dmitry Storozhenko Vladimir Dzyuba Yuri Kulchin 1Institute of Automation and Control Processes FEB Russian Academy of Sciences Russia 1Far Eastern Federal University Russia 2Far Eastern Federal University Russia

The paper gives the result of a numerical calculation of the Maxwell equation by the finite element method for a dielectric particle of spherical shape in the optical and THz ranges with a size 0.375÷0.75 of wavelength. The nature of the electric field distribution inside the sphere is shown in the case of high-order resonance for the optical range. The idea was put forward to use the resonance feature of the dielectric sphere to amplify the current in the conductor whip antenna. It is shown, that the use of such an antenna makes it possible to achieve amplification in the conductor up to 30 dB.

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Surface plasmon resonance-based refractometry using whispering gallery modes in bent metalized single-mode optical fibers

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AIP Conference Proceedings 2017年第1期1874卷

作者： Anton V. Dyshlyuk Evgeniy V. Mitsai Oleg B. Vitrik 1Institute of Automation and Control Processes of Far Eastern Branch of Russian Academy of Sciences 5 Radio Str. 690041 Vladivostok Russia 2Far Eastern Federal University 8 Sukhanova Str. 690091 Vladivostok Russia

The work is devoted to the numerical and experimental study of surface plasmon resonance in a bent single-mode optical fiber with metalized cladding. It was shown that with a proper combination of metal film thickness and bend radius one can achieve coupling between fundamental and surface plasmon modes through an intermediary of whispering gallery mode supported by the bent fiber’s optical cladding. This brings about a dip in the transmission spectrum of the fiber at the resonant wavelength which depends strongly on the external medium refractive index, so that refractometric measurements can be performed with a sensitivity of ∼5 μm/RIU and resolution ∼4·10−6.

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Laser-printed superhydrophobic evaporating drop concentrator

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AIP Conference Proceedings 2017年第1期1874卷

作者： Alexey Zhizhchenko Oleg Vitrik Sergey Syubaev Aleksandr Kuchmizhak 1Institute for Automation and Control Processes Far Eastern Branch of Russian Academy of Science 5 Russia 2Far Eastern Federal University 8 Sukhanova Str. Vladivostok 690950 Russia Radio Str. Vladivostok 690041 Russia

We present an all-laser micro-machined superhydrophobic/hydrophilic structure for a targeted pre- concentration of analyte molecules from an deposited water drop. The design of the evaporating concentrator combines the superhydrophylic Au-coated central pillar surrounded by the high-aspect-ratio microstructures having hierarchical micro/nano roughness both fabricated in a bulk polytetrafluoroethylene substrate using by a direct micro-machining with a femtosecond-pulse filament. The surrounding high-aspect-ratio textures posseses a high contact angle exceeding 170° and hysteresis less than 1.5° for the deposited 3-μl. water drop providing controllable pre-concentration of the analyte from the evaporating drop within a small superhydrophylic area of about 80×80 µm2 and resulting in the increase of the initial analyte concentration by 104 times.

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Detection of acoustic emission waves in composite plates by fiber optic sensors

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AIP Conference Proceedings 2017年第1期1909卷

作者： O. V. Bashkov R. V. Romashko H. Khon M. N. Bezruk V. I. Zaikov I. O. Bashkov 1Komsomolsk-on-Amur State Technical University Komsomolsk-on-Amur 681013 Russia 2Institute of Automation and Control Processes FEB RAS Vladivostok 690041 Russia

The paper provides an analysis of acoustic emission signals recorded with fiber optic sensors during the propagation of ultrasonic waves in a polymer composite material. The fiber optic sensors for acoustic emission were constructed according to the scheme of an adaptive holographic interferometer. Unlike piezoelectric sensors, fiber optic sensors are distributed type sensors. This imposes certain features on the detection of signals in plates in which fiber optic sensors are embedded. It is established that the spectrum of acoustic emission signals differs in different directions of wave propagation. The local maxima of the spectrum are determined by the mode of wave propagation in the plate in different directions and the location of fiber optic sensors.

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Ion-beam assisted laser printing of porous nanorings

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AIP Conference Proceedings 2017年第1期1874卷

作者： S. Syubaev A. Kuchmizhak A. Nepomnyashchiy 1Institute of Automation and Control Processes (IACP) Far Eastern Branch of Russian Academy of Science (FEB RAS) 5 Radio Str. Vladivostok 690041 Russia 2School of Natural Sciences Far Eastern Federal University (FEFU) 8 Sukhanova str. Vladivostok 690041 Russia

Pulsed-laser fabrication of noble-metal nanorings with a tunable internal porous structure, which can be further uncapped by using an ion-beam etching procedure, was demonstrated for the first time. Density and average size of the pores were shown to be tuned in a wide range by varying an applied pulse energy and a chemical composition of the metal film controlled via the film magnetron deposition in the appropriate gaseous environment. According to our preliminary numerical simulations, the controlled porosity provides multifold near-field enhancement of the electromagnetic fields, making such structures promising for spectroscopic bioidentification based on a surface-enhanced Raman scattering.

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Corrigendum: Dielectric cross-shaped-resonator-based metasurface for vortex beam generation at mid-IR and THz wavelengths (Nanophotonics (2019) 8:7 (1263–1270) DOI: 10.1515/nanoph-2019-0112)

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Nanophotonics 2019年

作者： Dharmavarapu, Raghu Izumi, Ken-ichi Katayama, Ikufumi Ng, Soon Hock Vongsvivut, Jitraporn Tobin, Mark J. Kuchmizhak, Aleksandr Nishijima, Yoshiaki Bhattacharya, Shanti Juodkazis, Saulius Centre for NEMS and Nanophotonics (CNNP) Department of Electrical Engineering Indian Institute of Technology Madras Chennai 600036 India Centre for Micro-Photonics Faculty of Science Engineering and Technology Swinburne University of Technology Hawthorn VIC 3122 Australia Melbourne Centre for Nanofabrication ANFF 151 Wellington Road Clayton VIC 3168 Australia Physics Department Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Infrared Microspectroscopy Beamline Australian Synchrotron Clayton VIC 3168 Australia Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok 690041 Russia Far Eastern Federal University Vladivostok 690090 Russia Department of Electrical and Computer Engineering Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Institute of Advanced Sciences Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Tokyo Tech World Research Hub Initiative (WRHI) School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan

There was a mistake in the grant number used in the recently published paper (DOI: https://***/10.1515/ nanoph-2019-0112. Published Online: 2019-07-09). The text should read: A.K. is grateful for support via the Russian Science Foundation (grant no. 17-19-01325), and R.D. thanks the IIT Madras-Swinburne joint PhD program. © 2019 De Gruyter. All rights reserved.

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Synthesis of nanostructured iron oxides and new magnetic ceramics using sol-gel and SPS techniques

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AIP Conference Proceedings 2017年第1期1809卷

作者： E. K. Papynov O. O. Shichalin A. A. Belov A. S. Portnyagin V. Yu. Mayorov E. A. Gridasova A. V. Golub A. S. Nepomnyashii I. G. Tananaev V. A. Avramenko 1Institute of Chemistry Far Eastern Branch of Russian Academy of Sciences Russia Vladivostok Prosp. 100-letia Vladivostoka 159 2Far Eastern Federal University Russia Vladivostok Sukhanova st. 8 3Institute of Automation and Control Processes Far Eastern Branch of Russian Academy of Sciences Russia Vladivostok Radio st. 5

The original way of synthesis of nanostructured iron oxides and based on them magnetic ceramics via sequential combination of sol-gel and SPS technologies has been suggested. High quality of nanostructured iron oxides is defined by porous structure (Sspec up to 47,3 м2/г) and by phase composition of mixed and individual crystal phases (γ-Fe2O3/Fe3O4 и α-Fe2O3), depending on synthesis conditions. High-temperature SPS consolidation of nanostructured hematite powder, resulting in magnetic ceramics of high mechanical strength (fracture strength 249 MPa) has been investigated. Peculiarities of change of phase composition and composite’s microstructure in the range of SPS temperatures from 700 to 900 °С have been revealed. Magnetic properties have been studied and regularities of change of magnetization (Ms) and coercive force (Hc) values of the ceramics with respect to SPS sintering temperature have been described.

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Zinc sulfide quantum dots for photocatalytic and sensing applications

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AIP Conference Proceedings 2017年第1期1874卷

作者： Alexander A. Sergeev Andrei A. Leonov Elena I. Zhuikova Irina V. Postnova Sergey S. Voznesenskiy 1Institute of Automation and Control Processes Far East Branch the Russian Academy of Sciences 690041 Vladivostok Radio St. 5 Russia 2Far Eastern Federal University 690950 Vladivostok Sukhanova St. 8 Russia 3Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences 690022 Vladivostok 100-letiya Vladivostoka Ave.159 Russia

Herein, we report the photocatalytic and sensing applications of pure and Mn-doped ZnS quantum dots. The quantum dots were prepared by a chemical precipitation in an aqueous solution in the presence of glutathione as a stabilizing agent. The synthesized quantum dots were used as effective photocatalyst for the degradation of methylene blue dye. Interestingly, fully degradation of methylene blue dye was achieved in 5 min using pure ZnS quantum dots. Further, the synthesized quantum dots were used as efficient sensing element for methane fluorescent sensor. Interfering studies confirmed that the developed sensor possesses very good sensitivity and selectivity towards methane.

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Action of a femtosecond laser pulse on thin metal film supported by glass substrate

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Journal of Physics: Conference Series 2018年第1期1128卷

作者： V V Shepelev N A Inogamov S V Fortova P A Danilov S I Kudryashov A A Kuchmizhak O B Vitrik Institute for Computer-Aided Design of the Russian Academy of Sciences 19/18 Vtoraya Brestskaya St. Moscow 123056 Russia Landau Institute for Theoretical Physics of the Russian Academy of Sciences 1a Akademika Semenova Avenue Chernogolovka Moscow Region 142432 Russia Dukhov Research Institute of Automatics (VNIIA) 22 Sushchevskaya Moscow 127055 Russia Lebedev Physical Institute of the Russian Academy of Sciences 53 Leninsky Avenue Moscow 119991 Russia Institute of Automation and Control Processes of the Far Eastern Branch of the Russian Academy of Sciences 5 Radio St. Vladivostok Primorsky Krai 690041 Russia School of Natural Sciences Far Eastern Federal University 8 Sukhanova St. Vladivostok Primorsky Krai 690041 Russia

Numerous papers are devoted to the problem of irradiating thin films on the substrate for surface nano-modification. But all of them concern the dynamics of the dynamics, paying almost no attention to substrate just as object of the first shockwave absorption. A different point of view with an emphasis on the dynamics of a substrate is presented. Under powerful laser action upon a thin metal film a hole arises. Its radius depends on the absorbed laser energy. Experimental results, quantitative theoretical model and numerical research are presented and show that the hole formation is influenced by propagation of the shock wave in the substrate, but not in the film itself. Four stages are considered. (i) Shockwave generation in a support because of an impact of a contact. (ii) Transition from one-dimensional to two-dimensional propagation of the shockwave. (iii) Lateral propagation of the shockwave along a film-support contact. And (iv) calculating pressure in the compressed layer behind the decaying shockwave. This positive pressure acting from substrate on the film accelerates the film in direction to vacuum. Above some threshold, velocity of accelerated film is enough to separate the film from support. In these cases the circle of separation is significantly wider than the focal laser spot on film surface.

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