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On the retreat of near-Earth neutral line during substorm expansion phase:a THEmIS case study during the 9 January 2008 substorm

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On the retreat of near-Earth neutral line during substorm ex...

Auroral streamers implication for the substorm progression on September 14,2004

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： X.Cao Z.Y.Pu A.m.Du v.m.mishin X.G.Wang C.J.Xiao T.L.Zhang v.Angelopoulos J.P.mcFadden K.H.Glassmeier Institute of Geology and Geophysics Chinese Academy of Sciences School of Earth aod Space Sciences Peking University Institute of Solar-Terrestrial Physics Russian Academy of Sciences School of Physics Peking University Department of Geophysics and Planetary Sciences USTC Space Research Institute Austrian Academy of Sciences Department of Earth and Space Sciences and Institute of Geophysics and Planetary Physics University of California Space Sciences Laboratory University of California TUBS max-Planck-Institut fr Sonnensystemforschung Katlenburg-LindauGermany

The location of magnetic reconnection in the midtail during a substorm was studied in many *** we present multi-point THEmIS observations of a reconnection event in the near-Earth magnetotail during *** this event,THEmIS probes stayed in the near-Earth and midtail region aligning along the *** allows reconnection evolution to be probed simultaneously from about -10 R to -23 R down *** Hall current related electron streams were observed at the same time by two probes far away from the reconnection *** near-Earth reconnection involved the tail lobe magnetic field,the reconnection site was restricted in earthward -23 *** reconnection involved into the tail lobe region,the reconnection site started to retreat gradually.

关键词： magnetospheric physics(magnetotail Storms and substorms)- Space plasma physics(magnetic reconnection)

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Brain-derived neurotrophic factor signaling in the neuromuscular junction during developmental axonal competition and synapse elimination

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： X.Cao Z.Y.Pu A.m.Du S.Tian X.G.Wang C.J.Xiao H.U.Frey m.v.Kubyshkina v.m.mishin S.Y.Fu L.Xie Q.G.Zong Institute of Geology and Geophysics Chinese Academy of Sciences School of Earth and Space Sciences Peking University School of Physics Peking University Space Science Laboratory University of CaliforniaBerkeleyCAUSA Institute of Physics University of St.PetersburgUlyanovskayaRussia Institute of Solar-Terrestrial Physics Russian Academy of SciencesIrkuskRussia

magnetospheric substorms manifest a fundamental disturbance in *** of substorm progression is essential for solar terrestrial physics and space weather *** auroral streamer and the bursty bulk flows(BBFs) were simultaneously observed by the ImAGE/WIC and the Cluster in the midtail(X～-16R),whose footprint was near the auroral streamer,respectively,during a substorm on September 14,*** auroral poleward boundaries(APBs) are 2～3°mLAT lower than the open-closed field line boundaries(OCBs) during the growth *** the expansion onset, streamer elongated poleward,and the location of APBs became coincident with *** observations are consistent with the scenario that substorm activations start from plasma sheet reconnection of closed field lines during growth phase;in the expansion phase the open field line in the lobes are involved in reconnection in tail.

关键词： Substorm Aurora streamer Reconnection

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Neural Regeneration Research 2025年第2期20卷 394-401页

作者： Josep Tomàs víctor Cilleros-mañé Laia Just-Borràs marta Balanyà-Segura Aleksandra Polishchuk Laura Nadal marta Tomàs Carolina Silvera-Simón manel m.Santafé maria A.Lanuza Unitat d’Histologia i Neurobiologia(UHNeurob) Facultat de Medicina i Ciències de la SalutUniversitat Rovira i VirgiliReusSpain

During the development of the nervous system,there is an overproduction of neurons and *** competition between neighboring nerve endings and synapses performing different activity levels leads to their elimination or *** have extensively studied the involvement of the brain-derived neurotrophic factor-Tropomyosin-related kinase B receptor neurotrophic retrograde pathway,at the neuromuscular junction,in the axonal development and synapse elimination process versus the synapse *** purpose of this review is to describe the neurotrophic influence on developmental synapse elimination,in relation to other molecular pathways that we and others have found to regulate this *** particular,we summarize our published results based on transmitter release analysis and axonal counts to show the different involvement of the presynaptic acetylcholine muscarinic autoreceptors,coupled to downstream serine-threonine protein kinases A and C(PKA and PKC)and voltage-gated calcium channels,at different nerve endings in developmental *** dynamic changes that occur simultaneously in several nerve terminals and synapses converge across a postsynaptic site,influence each other,and require careful studies to individualize the mechanisms of specific *** describe an activity-dependent balance(related to the extent of transmitter release)between the presynaptic muscarinic subtypes and the neurotrophin-mediated TrkB/p75NTR pathways that can influence the timing and fate of the competitive interactions between the different axon *** downstream displacement of the PKA/PKC activity ratio to lower values,both in competing nerve terminals and at postsynaptic sites,plays a relevant role in controlling the elimination of supernumerary ***,calcium entry through L-and P/Q-subtypes of voltage-gated calcium channels(both channels are present,together with the N-type channel in developing nerve terminals)contributes to red

关键词： acetylcholine release adenosine receptors axonal competition brain-derived neurotrophic factor calcium channels motor end-plate muscarinic acetylcholine receptors postnatal synapse elimination serine kinases tropomyosin-related kinase receptorB

Gradient microstructure,recrystallization and mechanical properties of copper processed by high pressure surface rolling

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Journal of materials Science & Technology 2022年第31期126卷 182-190页

作者： J.Guo Q.Y.He Q.S.mei X.Huang G.L.Wu O.v.mishin College of materials Science and Engineering Chongqing UniversityChongqing400045China Southwest Technology and Engineering Research Institute Chongqing 400039China School of Power and mechanical Engineering Wuhan UniversityWuhan 430072China Beijing Advanced Innovation Center for materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Department of mechanical Engineering Technical University of Denmark2800 Kgs.LyngbyDenmark

The microstructure,hardness and tensile properties have been studied in copper processed by high pressure surface rolling(HPSR)both in the as-deformed condition and after subsequent annealing at 150℃.It is found that a gradient structure with significant differences in the scale of microstructural features is formed by *** deformed microstructure varies from nano-and ultrafine-scale structures with a large fraction of high angle boundaries near the surface to lightly deformed grains at depths of 1-3 mm below the *** tests of 1-mm-thick specimens demonstrate that the asdeformed material has a high strength and a low uniform *** at 150℃results in partial recrystallization,which creates new through-thickness *** for the topmost layer and several bands in the adjacent layer,recrystallization is more pronounced close to the *** fraction recrystallized is at least 80%at depths of 60-300μm after annealing for 960 *** fraction recrystallized in the subsurface decreases with increasing depth,and the deformed layer at depths greater than 500μm re-mains largely non-recrystallized after *** partially recrystallized condition demonstrates an improved combination of strength and ductility.

关键词： High pressure surface rolling Copper Gradient microstructure Annealing Hardness Strength Ductility

一常见气体及CO_2在岩心模型和细长管模型上的驱油对比

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中国石油大学学报（自然科学版） 2016年第5期40卷 151-158页

作者： KHLEBNIKOv v N mishin A S ANTONOv S v KHAmIDULLINA I v 梁萌 SvAROvSLAUA N A 俄罗斯国立古勃金石油天然气大学

对地层驱油过程进行物理模拟,分别借助常规低渗碳酸盐岩心模型和细长管模型对比常见气体(氮气、甲烷、石油伴生气)及液态CO_2的驱油效果。结果表明:两种模型对氮气驱油能力的评估结果几乎一致(分别为21%和19.1%);随着流体与原油混溶性... 详细信息

对地层驱油过程进行物理模拟,分别借助常规低渗碳酸盐岩心模型和细长管模型对比常见气体(氮气、甲烷、石油伴生气)及液态CO_2的驱油效果。结果表明:两种模型对氮气驱油能力的评估结果几乎一致(分别为21%和19.1%);随着流体与原油混溶性的增加,两种模型评估结果的差异变大,对可与原油混溶的液态CO_2的评估结果分别为52%和94.8%;仅基于岩心模型的常规驱替实验并不能完全评估气体/溶剂的驱油能力,尤其对混相驱油剂的评价结果是不可靠的。

关键词：细长管岩心模型驱替实验提高采收率气驱

Dendritic spine degeneration:a primary mechanism in the aging process

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Neural Regeneration Research 2025年第6期20卷 1696-1698页

作者： Gonzalo Flores Leonardo Aguilar-Hernández Fernado García-Dolores Humberto Nicolini Andrea Judith vázquez-Hernández Hiram Tendilla-Beltrán Instituto de Fisiología Benemérita Universidad Autónoma de Puebla(BUAP)PueblaMexico Instituto de Ciencias Forenses(INCIFO) Tribunal Superior de Justicia de la Ciudad de México(TSJCDMX).Mexico CityMexico Instituto Nacional de medicina Genómica(INmEGEN) Mexico CityMexico

Recent reports suggest that aging is not solely a physiological process in living beings;instead, it should be considered a pathological process or disease(Amorim et al., 2022). Consequently, this process involves a wide range of factors, spanning from genetic to environmental factors, and even includes the gut microbiome(Gm)(mayer et al., 2022). All these processes coincide at some point in the inflammatory process, oxidative stress, and apoptosis, at different degrees in various organs and systems that constitute a living organism(mayer et al., 2022;AguilarHernández et al., 2023).

关键词： aging process stress

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多孔介质中天然气水合物生成的主要影响因素

天然气工业 2017年第5期37卷 38-45页

作者： Khlebnikov v.N. Antonov S.v. mishin A.S. 梁萌 Khamidullina I.v. Zobov P.m. Likhacheva N.v Gushchin P.A. 俄罗斯古勃金国立石油天然气大学

目前有关天然气水合物(以下简称水合物)的研究主要集中在物理化学性质考察和开采(分解)方法探索方面。在进行后者的研究过程中,地层渗流过程的物理模拟至关重要,但目前借助于石油开采研究中广泛应用的填砂管等多孔介质对水合物进行动态... 详细信息

目前有关天然气水合物(以下简称水合物)的研究主要集中在物理化学性质考察和开采(分解)方法探索方面。在进行后者的研究过程中,地层渗流过程的物理模拟至关重要,但目前借助于石油开采研究中广泛应用的填砂管等多孔介质对水合物进行动态过程的研究却鲜有报道。为此,利用河砂填砂管在岩心驱替装置上进行了甲烷水合物生成过程的物理模拟,考察了地层温度、甲烷压力及地层模型性质参数等对水合物生成过程的影响。结果表明:(1)利用冰融水作为地层模型的束缚水可显著提升甲烷水合物的生成速率;(2)多孔介质条件下过程驱动力(即实验压力或温度偏离水合物相平衡对应值的程度)对甲烷水合物的生成起着决定性作用;(3)当甲烷压力高于水合物相平衡压力1.4倍以上,或者实验温度低于相平衡温度3℃以下时,甲烷水合物生成诱导期几乎不随温压条件的变化而变化;(4)渗透率、含水饱和度、润湿性等参数对实验中甲烷水合物的生成率不构成明显影响。

关键词：甲烷水合物多孔介质生成过程天然气水合物地层物理模拟影响因素诱导期生成率

Simulation of detection and scattering of sound waves by the lateral line of a fish

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Chinese Physics B 2022年第2期31卷 398-404页

作者： v m Adamyan I Y Popov I v Blinova v v Zavalniuk Odessa I.I.mechnikov National University Dvoryanskaya Str.2Odesa65082Ukraine ITmO University Kronverkskiy49Saint Petersburg197101Russia Odessa military Academy 10 Fontanska RoadOdesa 65009Ukraine

A solvable model of lateral line of a fish based on a wave equation with additional boundary conditions on a set of isolated points is *** the framework of this model it is shown that the ratio of pressures on lateral lines on different fish flanks,as well as the cross section of sound scattering on both the lines,strongly depends on angles of incidence of incoming sound *** strong angular dependence of the pressure ratio seems to be sufficient for the fish to determine the directions from which the sound is coming.

关键词： acoustic equation point self-adjoint perturbations of Laplace operator scattering lateral line

热力学抑制剂与CO_2同注开采天然气水合物的实验研究

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天然气工业 2017年第12期37卷 40-46页

作者： Khlebnikov v.N. Gushchin P.A. Antonov S.v. mishin A.S. 梁萌 Khamidullina I.v. Zobov P.m. Likhacheva N.v. Semenov A.P. vinokurov v.A. 俄罗斯古勃金国立石油天然气大学

为解决CO_2置换法开采天然气水合物(以下简称水合物)过程中出现的置换速率慢、置换程度不高等问题,提出了将CO_2置换法与热力学抑制剂法组合使用的技术思路,即"抑制剂—置换法"。在实验室利用填砂管模型在岩心驱替装置上测定了CO_2与不... 详细信息

为解决CO_2置换法开采天然气水合物(以下简称水合物)过程中出现的置换速率慢、置换程度不高等问题,提出了将CO_2置换法与热力学抑制剂法组合使用的技术思路,即"抑制剂—置换法"。在实验室利用填砂管模型在岩心驱替装置上测定了CO_2与不同浓度的甲醇溶液在同注的情况下CH_4水合物的分解效果。结果表明:(1)甲醇的浓度对水合物开采效果起着决定性作用,甲醇溶液浓度越小,CH_4水合物的分解越弱,其变化趋势表现为以CH_4水合物的分解为主导转变为以CO_2水合物的生成为主导;(2)当CO_2与浓度为20.8%的甲醇溶液同注时,主要发生CH_4水合物的分解,CO_2水合物几乎不生成;(3)当CO_2与浓度为15%的甲醇溶液同注时,既发生CH_4水合物的分解,也发生CO_2水合物的生成;(4)当CO_2与浓度为10%的甲醇溶液同注时,CH_4水合物几乎不分解,主要发生CO_2水合物的生成。结论认为,"抑制剂—置换法"可促进CH_4水合物的分解,提高其开采效率。

关键词：热力学抑制剂二氧化碳同时注入天然气水合物开采置换速率置换程度