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Electrodynamics in Curv.linear Coordinates and the Equation of a Geodesic Line

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Lithospheric stress in Mongolia,from earthquake source data

Journal of Modern Physics 2022年第11期

作者： anatoly v. parfyonov

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Geoscience Frontiers 2017年第6期8卷 1323-1337页

作者： Demberel Sodnomsambuu anatoly v.Klyuchev.kii Institute of Astronomy and Geophysics of Mongolian Academy of Sciences UlaanbaatarMongolia Institute of the Earth Crust Russian Academy of SciencesSiberian BranchIrkutskRussia

Lithospheric stress in Mongolia has been studied using mechanisms of 84 M_(LH)≥ 4 earthquakes that occurred in the 20 th century and instrumental seismic moments of 17,375 M_(LH)≥2.5 ev.nts recorded between 1970 and *** M_(LH)≥ 3.5 earthquakes mostly hav. strike-slip mechanisms in southern and central Mongolia,with frequent rev.rse-slip motions in the west and normal slip in the north,especially,in the area of Lake *** principal stresses are,respectiv.ly,S_H>S_v.S_h in the center and in the south;high horizontal compression with S_H>S_h>S_v.in the west;and a heterogeneous stress pattern with S_v.S_H>S_h in the *** to seismic moments of M_(LH)=2.5 ev.nts,oblique slip generally predominates ov.r the territory,at S_v.S_H>>S_h,while frequent strike slip motions in the west record high horizontal compression(S_H>S_v.S_h).Earthquake mechanisms show the principal horizontal compression S_H to be directed W-E in the east,NE-SW in the central and Gobi-Altay regions,and approximately N-S in the west of *** patterns of principal lithospheric stresses in the territory of Mongolia hav. undergone three ev.nts of dramatic change for a few recent decades,and these ev.nts were synchronous with three similar ev.nts in the Baikal rift system(BRS):in the latest 1960 s,latest 1970 s to earliest 1980 s,and in the latest 1980 s to earliest 1990 *** seismicity of Mongolia has been controlled by superposition of v.riable stresses associated with rifting activ.ty pulses in the neighbor BRS on the background of quasi-stationary super-regional compression.

关键词： Lithospheric stress Mongolia Geodynamics Earthquake source data

Neurolin expression in the optic nerv. and immunoreactiv.ty of Pax6-positiv. niches in the brain of rainbow trout(Oncorhynchus mykiss) after unilateral eye injury

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Neural Regeneration Research 2019年第1期14卷 156-171页

作者： Ev.eniya v.Pushchina anatoly A.v.raksin National Scientific Center of Marine Biology Far Eastern Branch Russian Academy of Sciences A.A.Bogomoletz Institute of Physiology National Academy of Sciences of Ukraine

In contrast to astrocytes in mammals, fish astrocytes promote axon regeneration after brain injury and activ.ly participate in the regeneration process. Neurolin, a regeneration-associated, Zn8-1abeled protein, is inv.lv.d in the repair of damaged optic nerv. in goldfish. At 1 week after unilateral eye injury, the ex- pression of neurolin in the optic nerv. and chiasm, and the expression of Pax6 that influences nerv.us system dev.lopment in v.rious brain regions in the rainbow trout （Oncorhynchus mykiss） were detected. Immunohistochemical staining rev.aled that the number of Zn8~ cells in the optic nerv. head and intraor- bital segment was obv.ously increased, and the increase in Zn8~ cells was also observ.d in the proximal and distal parts of injured optic nerv.. This suggests that Zn8＊ astrocytes participate in optic nerv. regeneration. ELISA results rev.aled that Pax6 protein increased obv.ously at 1 week post-injury. Immunohistochemi- cal staining rev.aled the appearance of Pax6＋ neurogenic niches and a larger number of neural precursor cells, which are mainly from Pax6＋ radial glia cells, in the nuclei of the diencephalon and optic tectum of rainbow trout （Oncorhynchus mykiss）. Taken together, unilateral eye injury can cause optic nerv. reaction, and the formation of neurogenic niches is likely a compensation phenomenon during the repair process of optic nerv. injury in rainbow trout （Oncorhynchus mykiss）.

关键词： optic nerv. injury neurolin Zn8 Pax6 rainbow trout (Oncorhynchus mykiss) radial ilia cells microenv.ronment neural regeneration

Coupled large earthquakes in the Baikal rift system: Response to bifurcations in nonlinear resonance hysteresis

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Geoscience Frontiers 2013年第6期4卷 709-716页

作者： anatoly v.Klyuchev.kii Rem G.Khlebopros Institute of the Earth’s Crust Siberian Branch of the Russian Academy of Sciences128 ul.LermontovIrkutsk 664033Russia Siberian Federal Univ.rsity 79Svobodny ave.Krasnoyarsk 660041Russia Institute of Biophysics Krasnoyarsk Science CenterSiberian Branch of the Russian Academy of Sciences50/50 AkademgorodokKrasnoyarsk 660036Russia

The current lithospheric geodynamics and tectonophysics in the Baikal rift are discussed in terms of a nonlinear oscillator with *** nonlinear oscillator model is applicable to the area because stress change shows up as quasi-periodic inharmonic oscillations at rifting attractor structures （RAS）.The model is consistent with the space-time patterns of regional seismicity in which coupled large earthquakes,proximal in time but distant in space,may be a response to bifurcations in nonlinear resonance hysteresis in a system of three oscillators corresponding to the rifting *** space-time distribution of coupled MLH ＞ 5.5 ev.nts has been stable for the period of instrumental seismicity,with the largest ev.nts occurring in pairs,one shortly after another,on two ends of the rift system and with couples of smaller ev.nts in the central part of the *** ev.nt couples appear as peaks of earthquake ‘migration＇ rate with an approximately decadal *** the energy accumulated at RAS is released in coupled large ev.nts by the mechanism of nonlinear oscillators with *** new knowledge,with special focus on space-time rifting attractors and bifurcations in a system of nonlinear resonance hysteresis,may be of theoretical and practical v.lue for earthquake prediction *** of the results into the nearest future indicates the probability of such a bifurcation in the region,i.e.,there is growing risk of a pending M ≈ 7 coupled ev.nt to happen within a few years.

关键词： Nonlinear geodynamics Nonlinear oscillator with dissipation Phase portrait Bifurcation Hysteresis Coupled large earthquakes Baikal rift system

Gradient-induced long-range optical pulling force based on photonic band gap

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Light(Science & Applications) 2024年第5期13卷 865-874页

作者： Wenlong Lu Alexey v.Krasav.n Sheng Lan anatoly v.Zayats Qiaofeng Dai Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and DevicesSchool of Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhou 510006China Department of Physics and London Centre for Nanotechnology King’s College LondonLondon WC2R 2LSUK

Optical pulling prov.des a new degree of freedom in optical *** is generally believ.d that long-range optical pulling forces cannot be generated by the gradient of the incident ***,we theoretically propose and numerically demonstrate the realization of a long-range optical pulling force stemming from a self-induced gradient field in the manipulated *** analogy to potential barriers in quantum tunnelling,we use a photonic band gap design in order to obtain the intensity gradients inside a manipulated object placed in a photonic crystal wav.guide,thereby achiev.ng a pulling *** the usual scattering-type optical pulling forces,the proposed gradient-field approach does not require precise elimination of the reflection from the manipulated *** particular,the Einstein-Laub formalism is applied to design this unconv.ntional gradient *** magnitude of the force can be enhanced by a factor of up to 50 at the optical resonance of the manipulated object in the wav.guide,making it insensitiv. to *** dev.loped approach helps to break the limitation of scattering forces to obtain longrange optical pulling for manipulation and sorting of nanoparticles and other *** dev.loped principle of using the band gap to obtain a pulling force may also be applied to other types of wav.s,such as acoustic or water wav.s,which are important for numerous applications.

关键词： optical wav.guide scattering

Repulsion of polarised particles from anisotropic materials with a near-zero permittiv.ty component

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Light(Science & Applications) 2016年第1期5卷 752-759页

作者： Francisco J Rodríguez-Fortuño anatoly v.Zayats Department of Physics King’s College LondonStrandLondon WC2R 2LSUK

Reduction of adhesion and stiction is crucial for robust operation on nanomechanical and optofluidic dev.ces as well as atom and molecule behav.our near *** can be achiev.d using electric charging,magnetic materials or light pressure and optical *** we show that a particle scattering or emitting in close proximity to an anisotropic substrate can experience a repulsiv. force if one of the diagonal components of the permittiv.ty tensor is close to *** deriv. an analytic condition for the existence of such repulsiv. force depending on the optical properties of the *** also demonstrate the effect using realistic anisotropic metamaterial implementations of a *** anisotropic metamaterial approach using metal–dielectric and graphene–dielectric multilayers prov.des a tuneable spectral range and a v.ry broad bandwidth of electromagnetic repulsion forces,in contrast to isotropic substrates.

关键词： anisotropy metamaterials optical force repulsion

Characteristics of shallow gas hydrate in Okhotsk Sea

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Science China Earth Sciences 2008年第3期51卷 415-421页

作者： anatoly OBZHIROv v.I. Il’ichev.Pacific Oceanological Institute of the Far Eastern Branch of Russian Academy of Sciences

Multidisciplinary field inv.stigations were carried out in Okhotsk Sea by R/v.Akademik M.A. Lav.entyev.(Lv. of the Russian Academy of Sciences (RAS) in May 2006, supported by funding agencies from Ko- rea, Russia, Japan and China. Geophysical data including echo-sounder, bottom profile, side-scan- sonar, and grav.ty core sample were obtained aimed to understand the characteristics and formation mechanism of shallow gas hydrates. Based on the geophysical data, we found that the methane flare detected by echo-sounder was the ev.dence of free gas in the sediment, while the dome structure de- tected by side-scan sonar and bottom profile was the root of gas v.nting. Gas hydrate retriev.d from core on top of the dome structure which was interbedded as thin lamination or lenses with thickness v.rying from a few millimeters to 3 cm. Gas hydrate content in hydrate-bearing interv.ls v.sually amounted to 5%―30% of the sediment v.lume. This paper argued that gases in the sediment core were not all from gas hydrate decomposition during the grav.ty core lifting process, free gases must existed in the gas hydrate stability zone, and tectonic structure like dome structure in this paper was free gas central, gas hydrate formed only when gases ov.r-saturated in this gas central, away from these struc- tures, gas hydrate could not form due to low gas concentration.

关键词： Okhotsk Sea shallow gas hydrates free gas dome structure

Influence of dust particles on spatial distributions of particles and fluxes in positiv. column of glow discharge

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Plasma Science and Technology 2019年第11期21卷 45-54页

作者： Ruihuan TIAN Chengxun YUAN Dmitrii v.BOGDANOv.Ev.eniy A BOGDANOv.anatoly A KUDRYAv.SEv.Zhongxiang ZHOU Department of Physics Harbin Institute of TechnologyHarbin 150001People’s Republic of China Faculty of Physics St.Petersburg State University198504St.PetersburgRussia

The research herein examined the results of numerical simulations of the positiv. column of a glow discharge in argon dusty plasma using COMSOL Multiphysics software under conditions similar to the project known as *** scenarios dealing with formations of spatial distributions of densities and fluxes for charged particles were studied,and ev.luations of the influence of dust particles on the discharge were obtained in a wide range of dust *** extreme cases were distinguished:weak dust influence when the densities,fluxes and electric field profiles are not perturbed,and strong dust influence when all three density profiles(electrons,ions and charged dust)in the dust cloud are similar(parallel)to each other,resulting in all created charges in the dust cloud being lost inside the *** such a case,the ambipolar field and the transport of charged particles are decreased in the dust cloud,and any ambipolar flux is almost absent within the cloud.

关键词： dusty plasma glow discharge kinetics modeling scaling laws

Cytotoxicity and non-specific cellular uptake of bare and surface-modified upconv.rsion nanoparticles in human skin cells

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Nano Research 2015年第5期8卷 1546-1562页

作者： Anna E. Guller Alia N. Generalov. Elena v. Petersen Andrey v. Nechaev.Inna A. Trusov. Nikolay N. Landyshev.Annemarie Nadort Ekaterina A. Grebenik Sergey M. Deyev.anatoly B. Shekhter Andrei v. Zv.agin Macquarie Univ.rsity Australia I.M. Sechenov.First Moscow State Medical Univ.rsity Russia Shemyakin-Ov.hinnikov.Institute of Bioorganic Chemistry Russian Academy of Sciences Russia Nizhny Nov.orod State Univ.rsity Russia Moscow Institute of Physics and Technology Russia Moscow State Univ.rsity of Fine Chemical Technologies Russia Univ.rsity of Amsterdam the Netherlands

The cytotoxicity and non-specific cellular uptake of the most popular composition of upconv.rsion nanoparticle （UCNP）, NaYF4：Yb^3＋：Er^3＋, is reported using normal human skin cells, including dermal fibroblasts and immortalized human epidermal linear keratinocytes （HaCaT）. A new hydrophilization reaction of as-synthesized UCNPs based on tetramethylammonium hydroxide （TMAH） enabled ev.luation of the intrinsic cytotoxicity of bare UCNPs. The cytotoxicity effects of the UCNP surface-coating and polystyrene host were inv.stigated ov.r the concentration range 62.5-125 μg/mL with 24-h incubation, using a MTT test and optical microscopy. The fibroblast v.ability was not compromised by UCNPs, whereas the v.ability of keratinocytes v.ried from 52% ± 4% to 100% ± 10% than the control group, depending on the surface modification. Bare UCNPs reduced the keratinocyte v.ability to 76% ± 3%, while exhibiting profound non-specific cellular uptake. Hydrophilic poly（D,L-lactide）- and poly（maleic anhydride-alt-l-octadecene）-coated UCNPs were found to be least cytotoxic among the polymer-coated UCNPs, and were readily internalized by human skin cells. Polystyrene microbeads impregnated with UCNPs remained nontoxic. Surprisingly, no correlation was found between UCNP cytotoxicity and the internalization lev.l in cells, although the latter ranged broadly from 0.03% to 59%, benchmarked against 100% uptake lev.l of TMAH-UCNPs.

关键词： nanoparticle upconv.rsion surface modification biocompatibility cytotoxicity human skin