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Enigmatic Glass-Like Carbon from the Alpine Foreland, Southeast Germany: A Natural Carbonization Process

Acta Geologica Sinica(English Edition) 2018年第6期92卷 2179-2200页

作者： Tatyana G. SHUMILOvA Sergey I. ISAENKO vasily v. ULYASHEv Boris A. maKEEv Michael A. RAPPENGLüCK aleksey A. vELIGZHANIN Kord ERNSTSON Institute of Geology of Komi Scientific Center of Ural Branch of Russian Academy of Sciences Pervomayskaya st.54Syktyvkar167982Russia Hawaii Institute of Geophysics and Planetology University of Hawaii at Manoa1680 East-West RoadHonoluluHI96822USA Institute for Interdisciplinary Studies GilchingGermany National Research Center 《Kurchatov Institute》 Akademika Kurchatova pl.1Moscow123182Russia Faculty of Philosophy I University of WürzburgGermany

Unusual carbonaceous matter, termed here chiemite, composed of more than 90% C from the Alpine Foreland at Lake Chiemsee in Bavaria, southeastern Germany has been investigated using optical and atomic force microscopy, X-ray fluorescence spectroscopy, scanning and transmission electron microscopy, high-resolution Raman spectroscopy, X-ray diffraction and differential thermal analysis, as well as by δ13 C and 14 C radiocarbon isotopic data analysis. In the pumice-like fragments, poorly ordered carbon matter co-exists with high-ordering monocrystalline α-carbyne, and contains submicrometersized inclusions of complex composition. Diamond and carbyne add to the peculiar mix of matter. The required very high temperatures and pressures for carbyne formation point to a shock event probably from the recently proposed Holocene Chiemgau meteorite impact. The carbon material is suggested to have largely formed from heavily shocked coal, vegetation like wood, and peat from the impact target area. The carbonization/coalification high PT process may be attributed to a strong shock that instantaneously caused the complete evaporation and loss of volatile matter and water, which nevertheless preserved the original cellular structure seen fossilized in many fragments. Relatively fresh wood encapsulated in the purported strongly shocked matter point to quenched carbon melt components possibly important for the discussion of survival of organic matter in meteorite impacts, implying an astrobiological relationship.

关键词： astrobiology diamond carbyne coalification carbonization meteorite impact chiemite

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Impact of Geomagnetically Induced Currents Secondary Event on the High-voltage Synchronous Motors

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Engineering（科研） 2013年第10期5卷 21-26页

作者： vera v. vakhnina aleksey A. Kuvshinov Institute of Power Engineering and Electrical Engineering Togliatti State University Togliatti Russia

It is justified that during geomagnetic storms the high voltage synchronous engines are being impacted by high current harmonics of even sequences powered by power transformer due to geo-induced high voltage currents flowed through the windings. Equivalent circuits of step down substation and Hv synchronous motors are made for making it possible to consider a saturation of power transformer magnetic system and higher current harmonics availability in stator windings. Analytic expressions for higher current harmonics and extra capacity losses calculation in stator windings are received, as well as the calculation of induction torques allowing to denote a rate of geomagnetic processes impact on synchronous engine operation at various step down substation parameters.

关键词： Geomagnetically Induced Current Step Down Substation Power Transformer Synchronous Motor High Order Harmonics

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Health Information Systems and Registers

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E-Health Telecommunication Systems and Networks 2019年第2期8卷 11-22页

作者： Boris A. Kobrinskii aleksey v. Breusov Federal Research Center “Computer Science and Control” of Russian Academy Science Moscow Russian Federation Friendship University of Russia Moscow Russian Federation

Health information systems are the basis of eHealth at regional and national levels. They provide the maintenance of traditional medical documents in out-patient clinics and hospitals in electronic form. At the same time, specialized registries are monitoring systems for the health status of people with certain diseases. However, the creation of registers as independent information systems, which takes place to this day, is now inadvisable, since the necessary information can be obtained from the Electronic Healthcare Record/ Electronic Medical Record. In this case, specialized registers are implemented as virtual systems of a temporary or permanent type. Regarding patient registers, they integrate data from electronic medical records and information from patients or their relatives.

关键词： Modular Principle of Construction of Electronic Healthcare Records Specialized Registers virtual Registers eHealth

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沿阿穆尔板块西边界的活动断层(蒙古领土)

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地学前缘 2022年第1期29卷 245-265页

作者： vladimir A.SANKOv Anna v.PARFEEvETS Andrey I.MIROSHNITCHENKO aleksey v.SANKOv Amgalan BAYASGALAN Sodnomsambuu DEMBEREL Institute of the Earth’s Crust Siberian Branch of the Russian Academy of SciencesIrkutsk 664033Russia Irkutsk State University Irkutsk 664003Russia Institute of Astronomy and Geophysics of the Mongolian Academy of Sciences Ulaanbaatar 51Mongolia

阿穆尔板块西部边界在蒙古境内的空间位置尚不清楚,并且活动断层构造及其沿线地壳的应力状态研究较少。本文在沿此边界的三个区域——杭爱—肯特构造鞍部、布尔古特地块(鄂尔浑—土拉交汇处)和色楞格地块(包括色楞格凹陷和布伦—努鲁隆... 详细信息

阿穆尔板块西部边界在蒙古境内的空间位置尚不清楚,并且活动断层构造及其沿线地壳的应力状态研究较少。本文在沿此边界的三个区域——杭爱—肯特构造鞍部、布尔古特地块(鄂尔浑—土拉交汇处)和色楞格地块(包括色楞格凹陷和布伦—努鲁隆起),利用空间图像解译、地形起伏度分析、地质构造资料以及构造压裂和沿裂缝位移资料重建构造古应力,对活动断层进行研究。研究表明,活动断裂继承了古生代和中生代古构造的非均质性。这些断层沿着板块边界并不是单一的带,而是成簇的。它们的运动取决于走向:亚纬向断层是具有一定逆分量的左旋走滑断层,北西向断层是逆断层或逆冲断层,通常具有右旋走滑分量,海底断层是右旋走滑断层,北东向断层是正断层。位于色楞格凹陷和杭爱东部的断裂构造的活动始于上新世。逆断层和走滑断层与上新世情况不符,但多与更新世地貌相符,表明其活动年代较晚,为更新世时期。利用构造断裂和沿断裂的位移,重建活动断裂带变形末阶段的应力应变状态,结果表明断裂在最大挤压轴的北北东和北东方向上以压缩和走滑为主。只有在色楞格凹陷内,以扩张和走滑类型的应力张量为主,且在最小挤压轴的北西走向尤为显著。在南部,杭爱东部(鄂尔浑地堑)内有1个以扩张机制为主的局部区域,说明蒙古中部断裂在更新世—全新世阶段的活动以及现代地震活动主要受与印度斯坦和欧亚大陆汇聚过程相关的东北方向的附加水平挤压的控制。使研究区地壳产生走滑变形、贝加尔湖裂谷发散活动以及阿穆尔板块东南运动的另一个因素是东南方向软流圈流动对岩石圈底部的影响。阿穆尔板块和蒙古地块之间的边界在构造结构上是零碎的,代表了覆盖整个蒙古西部变形带的边缘部分。

关键词：活动断层古应力状态断层运动学碰撞的远程效应阿穆乐板块蒙古

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Ferroelectric liquid crystals for fast switchable circular Dammann grating [Invited]

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Chinese Optics Letters 2020年第8期18卷 2-5页

作者： Qi Guo Tian Liu Xiaoqian Wang Zhigang Zheng aleksey Kudreyko Huijie Zhao v.Chigrinov Hoi-Sing Kwok School of Instrumentation and Optoelectronic Engineering Beihang UniversityBeijing 100191China Beihang University Qingdao Research Institute Qingdao 266101China Physics Department East China University of Science and TechnologyShanghai 200237China Department of Medical Physics and Informatics Bashkir State Medical UniversityUfa 450008Russia School of Physics and Optoelectronic Engineering Foshan UniversityFoshan 528000China State Key Laboratory on Advanced Displays and Optoelectronics Technologies The Hong Kong University of Science and TechnologyHong Kong 999077China Department of Theoretical Physics Moscow Region State UniversityMytishi 141014Russia

Diffractive optical elements attract a considerable amount of attention, mainly due to their potential applications in imaging coding, optical sensing, etc. Application of ferroelectric liquid crystals(FLCs) with photoalignment technology in diffractive optical elements results in a high efficiency and a fast response time. In this study we demonstrate a circular Dammann grating(CDG) with a diffraction efficiency of 84.5%. The achieved response time of 64 μs is approximately two orders of magnitude faster than the existing response time of nematic liquid crystal devices. By applying a low electric field(v = 6 v) to the FLC CDG, it is switched between the eight-order diffractive state and the transmissive diffraction-free state.

关键词： ferroelectric liquid crystals photo-alignment fast switching diffractive optical elements

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