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Seismicity patterns before the 2021 Fin (Iran) doublet earthquakes using the region-time-length and time-to-failure methods

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Earthquake Science 2024年第4期37卷 324-336页

作者： Salma Ommi vladimir borisovich smirnov Department of Environmental Planning and Design Environmental Science Research InstituteShahid Beheshti UniversityTehranIran Department Physic of The Earth Moscow State UniversityMoscowRussia Schmidt Institute of Physics of the Earth Russian Academy of SciencesMoscowRussia

Knowledge regarding earthquake hazards and seismicity is crucial for crisis management, and the occurrence of foreshocks, seismic activity patterns, and spatiotemporal variations in seismic activity have been studied. Furthermore, the estimation of the region-time-length (RTL) parameter has been proposed to detect seismic quiescence before the occurrence of a large earthquake. In addition, the time-to-failure method has been used to estimate the time occurrence of large earthquakes. Hence, in this study, to gain deeper insight into seismic activity in the southern Zagros region, we utilized the RTL algorithm to identify the quiescence and activation phases leading to the Fin doublet earthquakes. Temporal variations in the RTL parameter showed two significant anomalies. One corresponded to the occurrence time of the first earthquake (2017-12-12);the other anomaly was associated with the occurrence time of the second event (2021-11-14). Based on a negative value of the RTL parameter observed in the vicinity of the Fin epicenters (2021), seismic quiescence (a decrease in seismicity compared to the preceding background rate) was identified. The spatial distribution of the RTL prognostic parameters confirms the appearance of seismic quiescence surrounding the epicenter of the Fin doublet earthquakes (2021). The time-to-failure method was designed using precursory events that describe the acceleration of the seismic energy release before the mainshock. Using the time-to-failure method for the earthquake catalog, it was possible to estimate both the magnitude and time of failure of the Fin doublet. Hence, the time-tofailure technique can be a useful supplementary method to the RTL algorithm for determining the characteristics of impending earthquakes.

关键词： earthquake catalog seismic quiescence region-time-length(RTL)algorithm time-to-failure method Fin doublet earthquakes.

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The bactericidal effect of continuous wave laser with strongly absorbing coating at the fiber tip

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Journal of Innovative Optical Health Sciences 2018年第5期11卷 51-58页

作者： Vadim Elagin Anton smirnov vladimir Yusupov Alexey Kirillov Nadezhda Ignatova Olga Streltsova Evgeniy Grebenkin Vladislav Kamensky Institute of Biomedical Technologies Privolzhsky Research Medical University 10/1 Minina Square Nizhny Novgorod 603005Russia Laboratory of Laser Nanomodification of Materials Institute of Applied Physics Russian Academy of Sciences 46 Ulyanova Street Nizhny Novgorod 603950Russia Institute of Photon Technologies of Federal Scientific Research Centre"Crystallography and Photonics"of the Russian Academy of Sciences 2 Pionerskaya Street MoscowTroitsk 108840Russia Department of Innovative Program Institute of Applied Physics Russian Academy of Sciences 46 Ulyanova Street Nizhny Novgorod 603950Russia

The bactericidal effect of laser radiation with a quartz fiber-based transmission system with a strong absorption coating converter against bacteria associated with urological stones has been *** am-negative rod Escherichia coli and the Gram-positive coccus Staphylococcus epi-dermidis,Staphylococcus aureus,Enterococcus faecalis and Enterococcus faecium were used in this *** bacterial species was treated by continuous-wave near infrared laser coupled with bare fiber tip or strongly absorption coating fiber *** treatment,the temperature of bacterial suspension was *** addition,the temperature dist ribution was *** has been shown that using laser with a strongly absorption coating fiber tip results in significant bactericidal *** decrease of the amount of *** and *** was 100%after treatment with an output power of6 W of radiation at a wavelength of 0.97 pum for *** of *** and *** colony-forming unit was reduced to 70%after same *** peak temperature of bacterial suspension was 86℃ after treatment by laser with a strongly absorption coating fiber *** with a strongly absorpt ion coating fiber tip provides large scale hydrodynamic flows directed away from the fiber *** laser with a strongly absorption coating fiber tip has bactericidal *** main role is associated with the effect of high temperature,which,in the form of flow in a liquid medium,afects bacteria.

关键词： Laser strongly absorbing coating bacteria bacterididal efect laserinduced hydrodynamic

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Atmosphere, ocean and lithosphere interaction as a possible drive of earthquake triggering

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Geodesy and Geodynamics 2020年第6期11卷 442-454页

作者： Victor Volkov Jan Mrlina Mstislav Dubrov vladimir smirnov Sergey Golovachev Vaclav Polak Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences MoscowRussian Federation Institute of Geophysics of the Czech Academy of Sciences PrahaCzech Republic Kotel'nikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences FryazinoRussian Federation

The comparison of tiltmeter and strainmeter data in the periods of the strongest earthquakes with tropical cyclone activities in the World Ocean during Januarye April 2014 is *** features of the observed co-seismic tilt and strain processes are consistent with the results obtained for the strongest events during *** time-frequency data analysis and the comparison of the analysis results with the anomalous geomagnetic and ionospheric activity come to an agreement with the observed *** obtained results have allowed the triggering mechanism of seismicity to be *** process begins as spatial and temporal swings of the regions of tropical cyclone origins and the basins of their *** powerful cyclone development accompanies a wide range of earthquake precursory phenomena,including abnormal behavior of ultra-wideband(0.002 m Hz-3 Hz)Earth’s oscillations,which can be recorded at far distances up to 1000-10,000 *** daily dissipation energy of the most powerful tropical cyclone(hurricane,typhoon)is estimated to have same order of magnitude as the energy released by an event of Mw 7-9,as well,atmospheric depressions are big enough to trigger a forthcoming strong *** triggering mechanism could be caused by quasi-static and timedependent surface loading that produces vertical tension and shear *** loading affects the seafloor and coastline where they fall close to the adjacent tectonic plate boundaries.

关键词： Tilt and strain Tropical cyclone Earthquake Hurricane

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Titanium oxide artificial synaptic device:Nanostructure modeling and synthesis,memristive cross-bar fabrication,and resistive switching investigation

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Nano Research 2023年第7期16卷 10222-10233页

作者： Vadim I.Avilov Roman V.Tominov Zakhar E.Vakulov Lev G.Zhavoronkov vladimir A.smirnov Research Laboratory Neuroelectronics and Memristive Nanomaterials(NEUROMENA Lab) Southern Federal UniversityTaganrog 347922Russia Institute of Nanotechnologies Electronics and Electronic Equipment EngineeringSouthern Federal UniversityTaganrog 347922Russia

The paper shows the results of the mathematical model development and the numerical simulation of the oxygen vacancies,and the distribution of TiO,Ti_(2)O_(3),and TiO_(2)oxides in the titanium oxide nanostructure obtained by local anodic oxidation(anodization).The effect of the anodization voltage pulse duration and amplitude on the titanium oxide composition distribution and the conduction channel formation was *** device prototypes based on electrochemical titanium oxide are fabricated and *** was shown that forming free resistive switching between the low resistances state(LRS)1.43±0.54 kΩand the high resistance state(HRS)28.75±9.75 kΩwere observed during 100,000 switching cycles and LRS 1.49±0.23 kΩwas maintained for 10,000 *** resistive switching of the synaptic device prototype was *** was shown that increasing Uset from 0.5 to 1.5 V leads to different LRS from 3.96±0.19 to 0.71±0.10 kΩ.The results obtained can be used in the development of technological foundations for the formation of high-performance multilevel artificial synapses for elements of neuroelectronics and hardware neural networks.

关键词： artificial intelligence neuromorphic systems memristive cross bar resistive switching scanning probe microscopy titanium oxide

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堪察加地区现今地壳运动与变形特征研究

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地球物理学报 2009年第3期52卷 720-731页

作者：孟国杰申旭辉 vladimir smirnov Eugene A Rogozhin 伍吉仓中国地震局地震预测研究所北京100036 俄罗斯科学院地球物理研究所莫斯科123995 莫斯科大学物理系莫斯科119992 同济大学测量与国土信息工程系上海200092

利用俄罗斯堪察加地区1995～2005年的 GPS 观洲数据,研究了该区现今地壳水平运动速度场特征.在球坐标系中解算了各应变率分量,分析了应变率场的空间分布特征.并与地震学和地质学研究结果进行了综合对比分析.结果表明.堪察加半岛北部的... 详细信息

利用俄罗斯堪察加地区1995～2005年的 GPS 观洲数据,研究了该区现今地壳水平运动速度场特征.在球坐标系中解算了各应变率分量,分析了应变率场的空间分布特征.并与地震学和地质学研究结果进行了综合对比分析.结果表明.堪察加半岛北部的微板块边界并不明显.堪察加南部测站运动速度大于中部和北部地区.愈靠近东部板块汇聚区,测站速度越大.从东海岸到西海岸,测站水平速度存在明显的梯度衰减特征,水平运动方向与太平洋板块向西北的俯冲方向基本一致.各应变率分量具有东部海岸大于中部和西海岸、从东至西呈梯度衰减的特点.堪察加大部分地区处于 EW 和 NS 向压缩状念.局部存在拉张.面应变率结果显示绝大部分为压缩区;刚性转动结果表明大部分地区表现为顺时针转动,北部地区和南端顺时针旋转性明显.东部有效应变率明显大于西部地区,东西向梯度衰减关系明显.主压应变率明显大于主张应变率.特别是在东海岸地区.主压应变率方向与中等以上地震的主压应力轴在水平方向的投影方向基本一致.地壳变形场在空间分布上的不一致性主要与太平洋板块在堪察加半岛东南侧的俯冲深度、俯冲方位角、俯冲倾角和俯冲带的耦合强度有关.

关键词：堪察加地区地壳运功 GPS 应变率场

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Reaction of water and living systems under the chronic effect of ionized radiation in low doses

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Journal of Biomedical Science and Engineering 2012年第12期5卷 771-778页

作者： Igor borisovich Ushakov vladimir vladimirovich Tsetlin Svetlana Stepanovna Moisa Federal State-Financed Establishment of Science State Scientific Center of The Russian Federation Institute of Biomedical Problems of The Russian Academy of Sciences Moscow Russia

It is represented the review about the effect of low doses of ionized radiation on different types of biological objects (Japanese quail embryos, Aspergillus niger, Spirostomum ambiguum Ehrbg., mezenchim stem cells of mice bone brain, dry seeds of the highest plants, blood lymphocytes of pilots and cosmonauts) and water medium. In model experiments under the chronic ionized radiation in doses comparable with the doses of ionized radiation inside the orbital space stations and during the flight in interplanetary space was shown alike with morphological deviations (Japanese quail embryos, Aspergillus niger), the phenomenon of radiation hormezis (Aspergillus niger, mezenchim stem cells), the increasing of the germination of seeds, the decreasing of spontaneous motion activity of spirostoms and DNA damage, chromosome aberrations and the increased radio-sensitivity to adding radiation load in blood lymphocytes. These data testified the fact that the definite factor of ionized radiation effect is the changing of water medium state. Thus under the interplanetary cosmic flight and long stay on the orbit in the region of magnetosphere the studying kinds of radiation first effected on the water medium of organism as a result morpho-functional structures were changed.

关键词： Ionized Radiation Reaction of Water Living Systems Low Doses Orbital Space Station

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The new stochastic algorithm for stratigraphic inversion method

The new stochastic algorithm for stratigraphic inversion met...

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CPS/SEG 2004 International Geophysical Conference

作者： vladimir E. smirnov Yury V. smirnov Volgograd Scientific Research Institute of Petroleum Industry （"Volgograd NIPImorneft"） Lenin av. 96 Volgograd 400005 Russia Geological Faculty Moscow State University Mocscow 119234 Russia

＜正＞ The algorithm and software are developed to solve inverse dynamic task of seismic prospecting by selection parameters of a geological section model on the basis of application stochastic algorithm of global optimization and Ψ-transformation of criterion function for minimization functional, describing a measure of similarity real and synthetic seismic traces.

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Modeling of growth process and facet formation in Cz growth oxide crystals

Modeling of growth process and facet formation in Cz growth ...

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第十七届全国晶体生长与材料学术会议(CCCG-17)

作者： Vasif Mamedov Andrey smirnov vladimir Kalaev STR Group Inc.

Modeling of growth process and facet formation in Cz growth oxide crystals Vasif Mamedov,Andrey smirnov,vladimir Kalaev STR Group,*** Oxide crystals are used for various applications:laser,optical,*** of the commonly ...

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小儿急性病毒性脑炎的视觉通路受累(英文)

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国际眼科杂志 2013年第10期13卷 1953-1955页

作者： Voitenkov V1adislav borisovich Komaneev vladimir Nikolaevich Skripchenko Natalia Viktorovna 国家预算科学儿童感染研究院功能诊断科俄罗斯圣彼得堡9197022 国家预算科学儿童感染研究院神经感染和中枢神经系统的器质性病理系俄罗斯圣彼得堡9197022

目的：探讨急性病毒性脑炎患儿的视觉通路受累程度和性质。方法：对30例急性病毒性脑炎患者（年龄5～12岁）,疾病最初显现的12d内视觉诱发电位（VEP）进行调查。在急性病毒性脑炎患者和水痘蜱传脑炎患者之间比较P100峰潜伏期及振幅。结... 详细信息

目的：探讨急性病毒性脑炎患儿的视觉通路受累程度和性质。方法：对30例急性病毒性脑炎患者（年龄5～12岁）,疾病最初显现的12d内视觉诱发电位（VEP）进行调查。在急性病毒性脑炎患者和水痘蜱传脑炎患者之间比较P100峰潜伏期及振幅。结果：两种形式脑炎患儿之间无显着差异。研究对象组中,40%的患者表现出视觉皮层功能障碍（P100振幅降低）,沿视觉通路（P100潜伏期延长）电导率温和放缓的迹象。结论：研究发现,视觉通路对病毒性脑炎有很强的耐受性。功能性视皮层对该疾病的抵抗力低。

关键词：视觉诱发电位病毒性脑炎儿童视觉通路

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Modeling and optimization of large-scale sapphire crystal growth process using HEM and Ky methods

Modeling and optimization of large-scale sapphire crystal gr...

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第十七届全国晶体生长与材料学术会议(CCCG-17)

作者： Vasif Mamedov vladimir Artemyev Andrei Vorob’ev Andrey smirnov vladimir Kalaev STR Group Inc.

Sapphire crystals are used for production of high-brightness light-emitted diodes and devices,products in optics,medicine instruments and in other applications[1].Requirements for crystal quality and price motivate crystal manufacturers for optimization of crystal growth technology to increase furnace productivity and

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