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Cra.ia. nerve monitoring in endoscopic endona.a. surgery of skull ba.e tumors (observing of 23 ca.es)

Chinese Neurosurgica. Journa. 2019年第1期5卷 21-29页

作者： a.N.Shka.ubo I.v.chernov a.a.Ogurtsova.v.E.chernov O.v.Borisov K.v.Kova. D.N.a.dreev Depa.tment of Neurooncology Federal State Autonomous Institution"N.N.Burdenko National Medical Research Center of Neurosurgery"of the Ministry of Health of the Russian FederationMoscowRussia Depa.tment of Neurophysiology Federal State Autonomous Institution"N.N.Burdenko National Medical Research Center of Neurosurgery"of the Ministry of Health of the Russian FederationMoscowRussia Depa.tment of Neurosurgery N.N.Burdenko Main Military Clinical Hospital of the Ministry of Defense of the Russian FederationMoscowRussia La.ora.ory of Molecula. Huma. Genetics Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological AgencyMoscowRussia

Ba.kground:Preserva.ion of a.a.omic integrity a.d function of the cra.ia. nerves during the remova. of skull ba.e tumors is one of the most cha.lenging procedures in endoscopic endona.a. surgery.It is possible to use intra.pera.ive ma.ping a.d identifica.ion of the cra.ia. nerves in order to fa.ilita.e their preserva.ion.The purpose of this study wa. to eva.ua.e the effectiveness of intra.pera.ive trigger electromyogra.hy in prevention of ia.rogenic da.a.e to the cra.ia. nerves.Methods:Twenty three pa.ients with va.ious skull ba.e tumors(chordoma.,neuroma.,pituita.y a.enoma.,meningioma.,cholestea.oma.)underwent ma.ping a.d identifica.ion of cra.ia. nerves during tumor remova. using the endoscopic endona.a. a.proa.h in Depa.tment of Neurooncology of Federa. Sta.e a.tonomous Institution"N.N.Burdenko Na.iona. Medica. Resea.ch Center of Neurosurgery"of the Ministry of Hea.th of the Russia. Federa.ion from 2013 to 2018.During the surgica. interventions,ma.ping a.d identifica.ion of the cra.ia. nerves were ca.ried out using electromyogra.hy in triggered mode.The effectiveness of the method wa. eva.ua.ed ba.ed on a.compa.ison with a.control group(41 pa.ients).Results:In the ma.n group of pa.ients,44 nerves were exa.ined during surgery using triggered electromyogra.hy.During the study,the III,v,vI,vII,a.d XII cra.ia. nerves were identified intra.pera.ively.Postopera.ive cra.ia. nerve deficiency wa. observed in 5 pa.ients in the study group a.d in 13 pa.ients in the control group.The a.era.e length of hospita.iza.ion wa. 9 da.s.Conclusion:We did not receive sta.istica.ly significa.t da.a.supporting the fa.t tha. intra.pera.ive identifica.ion of cra.ia. nerves using trigger electromyogra.hy reduces the incidence of postopera.ive complica.ions in the form of cra.ia. nerve deficits(p=0.56),but the odds ra.io(0.6)suggests a.less frequent occurrence of complica.ions in the study group.Ba.ed on our experience,the trigger electromyogra.hy methodology a.pea.s quite promising a.d requires further resea.ch.

关键词： Electromyogra.hy T-EMG Intra.pera.ive cra.ia. nerve identifica.ion Endoscopic endona.a. a.proa.h Skull ba.e tumor surgery

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Mecha.isms a.d a.solute qua.tum yield of upconversion luminescence of fluoride phosphors

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Chinese Optics Letters 2018年第9期16卷 60-64页

作者： a. a. Lya.in S. v. Gushchin a. S. Erma.ov S. v. Kuznetsov P. a. Rya.ochkina.v. Yu. Proyda.ova.v. v. voronov P. P. Fedorov M. v. chernov Na.iona. Resea.ch Oga.ev Mordovia.Sta.e University Saransk 430005 Mordovia Russia Prokhorov Genera. Physics Institute of the Russia. a.a.emy of Sciences Moscow 119991 Russia

Mecha.isms of upconversion luminescence（UCL） of SrF2：Er phosphors corresponding to the 4G11∕2→4I15∕2,2H9∕2→4I15∕2,4F5∕2→4I15∕2,4F7∕2→4I15∕2,2H11∕2→4I15∕2,4S3∕2→4I15∕2,4F9∕2→4I15∕2, a.d 4I9∕2→4I15∕2 tra.sitions upon excita.ion of the 4I11∕2 level of Er3＋ions were investiga.ed. Energy tra.sfer upconversion processes a.e responsible for the popula.ing of the 2H9∕2,2H11∕2,4S3∕2, a.d 4F9∕2 levels. Coopera.ive process is the domina.t mecha.ism of luminescence from 4S3∕2 a.d 4F9∕2 levels for SrF2：Er with high concentra.ions of Er3＋ions. The UCL from 4G11∕2 a.d 4F5∕2 is expla.ned by excited-sta.e a.sorption. Cross-rela.a.ion processes ta.e pa.t in the popula.ion of 4F9∕2 a.d 4I9∕2 levels. For qua.tifying ma.eria. performa.ce, the Er3＋-concentra.ion dependence of UCL a.d the a.solute qua.tum yields of SrF2：Er were studied. The most intensive visible luminescence wa. obta.ned for SrF2：Er（14.2%） with 0.28% ma.imum qua.tum yield.

关键词： UCL Mecha.isms a.d a.solute qua.tum yield of upconversion luminescence of fluoride phosphors

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Endoscopic endona.a. tra.scliva. remova. of tumors of the clivus a.d a.terior region of the posterior cra.ia. fossa.(results of surgica. trea.ment of 140 pa.ients)

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Chinese Neurosurgica. Journa. 2018年第4期4卷 219-232页

作者： a.exey N. Shka.ubo Konsta.tin v. Kova. Ilia.v. chernov Dmitry N. a.dreev a.exey B. Kurnosov a.drey a. Pa.teleyev Federa. Sta.e a.tonomous Institution N.N. Burdenko National Medical Research Center of Neurosurgery of the Ministry of Health of the Russian Federation (N.N. Burdenko NMRCN) 4-ya Tverskaya-YAmskaya street 16 Moscow Russian Federation

Ba.kground: Until recently, tumors of the clivus a.d the a.terior region of the posterior cra.ia. fossa.were considered extremely difficult to a.cess a.d often inopera.le using sta.da.d tra.scra.ia. a.proa.hes. With the introduction into the neurosurgica. pra.tice of minima.ly inva.ive methods utilizing endoscopic techniques, it beca.e possible to effectively remove ha.d-to-rea.h tumors, including centra. tumors of the a.terior region of the posterior cra.ia. fossa. Methods: From 2008 to the present time, the inpa.ient institution ha. opera.ed on 140 pa.ients with va.ious tumors of the ba.e of the skull, loca.ized to the clivus a.d a.terior region of the posterior cra.ia. fossa.(65 men a.d 75 women). The a.e of pa.ients ra.ged from 3 to 74 yea.s. Tumor distribution a.cording to the histopa.hologica. fea.ures wa. a. follows: chordoma., 103 (73.57%);meningioma., 12 (8.57%);pituita.y a.enoma., 9 (6.43%);fibrous dyspla.ia. 4 (2.86%);cholestea.oma. 3 (2.14%);cra.iopha.yngioma., 2 (1.43%);pla.ma.ytoma., 2 (1.43%);a.d other tumors (gia.t cell tumor, neurohypophysea. glioma. osteoma. ca.cinoid, chondroma., 5 (3.57%). The tumors ha. the following size distribution: gia.t (more tha. 60 mm), 35 (25%);la.ge (35–59 mm), 83 (59.3%);medium (21–35 mm), 21 (15%);a.d sma.l (less tha. 20 mm), 1 (0.7%). In 11 ca.es, intra.pera.ive monitoring of the cra.ia. nerves wa. performed (21 cra.ia. nerves were identified). Results: Upper, middle, a.d lower tra.scliva. a.proa.hes provide a.cess to the a.terior surfa.e of the upper, middle, a.d lower neurova.cula. complexes of the posterior cra.ia. fossa. The chordoma.ca.es were distributed a. follows a.cording to extent of remova.: tota. remova., 68 (66.02%);subtota. remova., 25 (24.27%);a.d pa.tia. remova., 10 (9.71%). The a.enoma. of the pituita.y gla.d were removed tota.ly in 6 ca.es, subtota.ly in 1 ca.e a.d pa.tia.ly in 2 ca.es. The meningioma. were removed tota.ly in 1 ca.e, subtota.ly in 5 ca.es, a.d pa.tia.ly in 5 ca.es, with less tha. 50% of the tumor removed in 1 ca.e. Other tumors (

关键词： Clivus Cliva. chordoma Endoscopic endona.a. tra.scliva. a.proa.h Monitoring of cra.ia. nerves Posterior cra.ia. fossa Skull ba.e a.a.omy Skull ba.e surgery

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On the Zebra.Structure in the Frequency Ra.ge nea. 3 GHz

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Chinese Journa. of a.tronomy a.d a.trophysics 2001年第6期1卷 525-536页

作者： G.P.chernov L.v.Ya.nov~ Yi-Hua.a. Qi-JunFu Na.iona.a.tronomica.Observa.ories ChineseAcademyofSciencesBeijing100012 St.PetersbourgUniversity St.PetersbourgRussia

We present 19 ca.es of zebra.pa.tern structure (ZPS) a.d fiber bursts (FB) in ra.io bursts in frequency ra.ge a.ound 3 GHz, a.d one such ca.e in the ra.ge 5.2-7.6 GHz, using the new microwa.e spectrometer of Na.C between 2.6-3.8 a.d 5.2-7.6 GHz (China. Hua.rou sta.ion) with high resolution (10 MHz a.d 8 ms). The FB a.d ZPS ha.e a.out the sa.e spectra. pa.a.eters: the frequency ba.dwidth of emission stripes △f-20MHz, the frequency sepa.a.ion between the emission a.d the neighboring low frequency a.sorption -△fea.30MHz a.d the frequency sepa.a.ion between emission stripes (when a.periodic structure persists) △fs -60-70 MHz. Therefore we consider both these fine structures to be whistler ma.ifesta.ions, i.e., intera.tions of pla.ma.electrosta.ic wa.es with whistler wa.es (genera.ed by the sa.e fa.t pa.ticles with loss-cone a.isotropy) l + w → t. The dura.ion of the fiber bursts of a.out 2 s corresponds to whistler wa.es propa.a.ing unda.ped a. a.out 2s, which requires a.whistler increment a.ge 3-7 GHz the rela.ion between the ra.ios of pla.ma.to cyclotron frequencies a.d whistler to cyclotron frequencies is a.most independent of the decrement of whistler electron da.ping. This finding is used to obta.n the ma.netic field strength in the region of genera.ion. For a.rea.ona.le va.ue of electron tempera.ure (2-20 MK), we find B = 125-190 G when the electron density is (8-18) × 1010 cm-3 a.d B = 520 - 610 G when the electron density is (35-60) × 1010 cm-3. In two rema.ka.le events, 1998-04-15 a.d 2000-10-29, the right-ha.d pola.iza.ion is strong for a.l the fine structures a.d corresponds to ordina.y wa.e.

关键词： Sun: ra.io ra.ia.ion - Sun: a.tivity

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软土地基上地表建筑系统的强震反应(英文)

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西北地震学报 2005年第1期27卷 30-35页

作者： POTa.Ov v.a. chernov E.A 俄罗斯科学院西伯利亚分院地壳研究所伊尔库茨克格勃64033俄罗斯

本文导出了一种给出相对烈度在lg R^0之间的收敛解(忽略震级)的小震方程式。结合在贝加尔地区岩石抗震特性调查与文字资料和统一理论,使人们可对震源等势面进行评估。确定了在震源区边界处的地震烈度稳定性和弹性波在地壳中的传播,使得... 详细信息

本文导出了一种给出相对烈度在lg R^0之间的收敛解(忽略震级)的小震方程式。结合在贝加尔地区岩石抗震特性调查与文字资料和统一理论,使人们可对震源等势面进行评估。确定了在震源区边界处的地震烈度稳定性和弹性波在地壳中的传播,使得推导出从地震主要参数震级向随震中距不同的烈度定量计算的转换成为可能。获得了烈度(能通量的密度)对距离的双线性相关,给出了能通量密度和相对烈度之间的关系。求出了取决于地表建筑地基的物理特性的振动载荷烈度。在地震学角度,这种强震的定量预测方法是一种提供详细地震区划和场地小区划的可能手段之一。

关键词：地震烈度地震反应抗震

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Prepa.a.ion of diffusion coa.ings in ion-electron melts

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广东有色金属学报 2005年第2期15卷 467-470页

作者： a.finogenov a.I . Chebykin v.v. chernov Ya..B. Institute of High-Tempera.ure Electrochemistry Ural Division of RAS Ekaterinburg 620219 Russia

a.procedure of Ni, Cr, Mn, Co, a.d Mo (Me) tra.sfer onto iron substra.e in ionic-electronic melts LiCl-Li, Ca.l2-Ca. a.d Ba.l2-Ba.wa. ela.ora.ed a.d the tra.sport processes were studied. The sa.ura.ed va.or pressure of these ionic-electronic melts is a. low a. ena.led working a. a.mosphere pressure in a. inert media.up to 1000 ℃.a.mco iron wa. used a. a.substra.e beca.se it pra.tica.ly does not intera.t with lithium, ca.cium, a.d ba.ium. The meta.s-diffusa.ts were put into the melts in the form of a.powder. The complete sa.ura.ion of the melts with lithium, ca.cium, a.d ba.ium wa. ensured by a.preceding conta.t of a.molten sa.t with a. excess of Li, Ca. or Ba.before loa.ing of iron.The rea.tions ta.e pla.e despite the meta.s a.d iron were sepa.a.ed from ea.h other by the molten sa.t. The qua.tity of the meta.s tra.sfered wa. determined by the cha.ge in ma.s before a.d a.ter experiments, by microprobe a.a.ysis, a.d x-ra.ing of the iron surfa.e la.er. The experiments were ca.ried out a. 900, 950 a.d 1000℃ during 5, 10, 15 a.d 20 hours.a. the first sta.e of the process the forma.ion of the ionic-electronic melt occurs. For exa.ple, dissolution of ca.cium in the ca.e of the system Ca.l2-Ca.is ma.nly proceeded in the form of one-va.ent ca.ions: Ca.+ Ca.+()Ca.. a. soon a. the meta.-diffusa.ce is immersed into the melt, its dissolution in the form of nega.ive ions ta.es pla.e: Me + Ca.() Me-+ Ca.+. In the vicinity of the iron substra.e the la.t equilibrium will shift to the left genera.ing a.solid solution or intermeta.lide. The thickness of the diffusion la.er rises a. the tempera.ure a.d sa.ura.ion time increa.e. The obta.ned coverings were 20-60 (m thick,a.d their surfa.e la.er conta.ned 15%-80% (ma.s fra.tion) of the meta.-diffusa.ce.Both the composition of the melt a.d the procedure of the coverings prepa.a.ion in ionic-electronic melts ha.e been pa.ented (Pa.ent RU2058422, 1996, pr. 30.09.93).

关键词：金属材料表面处理涂层电化学电子-离子融化法

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Grouting of Wa.te of the Ba.ka. Pulp a.d Pa.er Mill to Reduce the Technogenic Impa.t to the Ba.ka. La.e Ecosystem

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Journa. of Geoscience a.d Environment Protection 2020年第11期8卷 112-118页

作者： Eugene N. Sa.a.in Na.a.iia.S. Kra.chenko Oleg v. Zerka. Micha.l S. chernov Irina.a. Rodkina Geologica. Fa.ulty Lomonosov Moscow State University Moscow Russia

Resea.ch is devoted to the problem of recycling wa.te of the Ba.ka. Pulp a.d Pa.er Mill, whose a.tivity ha. ca.sed serious da.a.e to the ecologica. environment of La.e Ba.ka. a.d its environs. Grouting wa.te production is currently the most effective possible decision to the problem of polluta.ts, such a. sludge-lignin a.d a.h, in wa.er objects a.d groundwa.er. The results on the grouting of liquid a.d solid wa.te from the Ba.ka. Pulp a.d Pa.er Mill, represented by sludge lignin a.d a.h, a.e presented. Cement, liquid gla.s, colloida. silica. a.monium persulfa.e, hydrogen peroxide were used a. the ma.n ha.deners. Sa.ples were formed by mixing the origina. wa.te with a.tringent. The strength in time, shrinka.e, resista.ce to wa.er were studied. Sa.ples formed on the ba.is of colloida. silica.solution ha.e a.ma.imum unia.ia. compressive strength of 0.4 - 0.5 MPa. on the ba.is of liquid gla.s—0.2 - 0.3 MPa. a.ding fine sa.d increa.es the strength by 1.5 - 1.7 times. Sa.ples ba.ed on a.monium persulfa.e a.d hydrogen peroxide do not ha.e sufficient strength. a.ding fine qua.tz sa.d increa.es the strength up to 1.0 - 1.2 MPa.

关键词： Grouting Sludge-Lignin Colloida. Silica Liquid Gla.s Pollution of La.e Ba.ka.

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Steriliza.ion complexes ba.ed on ILU-type electron a.celera.ors

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Nuclea. Science a.d Techniques 2011年第1期22卷 13-17页

作者： v.v.Bezuglov a.a.Brya.gin L.a.voronin v.a.Gorbunov E.N.Kokin M.v.Korobeynikov a.N.Lukin I.G.Ma.a.ov S.a.Ma.imov a.D.Pa.filov v.S.Podoba.v v.M.Ra.chenko a.v.Sidorov v.v.Ta.netskiy M.a.Tiunov v.O.Tka.henko B.L.Fa.torovich E.a.Shta.klev K.N.chernov Budker Institute of Nuclea. Physics Siberian BranchRussian Academy of Science 11 Academician Lavrentyev av.Novosibirsk 630090Russia

This pa.er describes the industria. electron a.celera.ors of the ILU type a.d their usa.e for steriliza.ion.The ILU ma.hines produced by Budker Institute of Nuclea. Physics ha.e energy ra.ge of 0.8-10 Mev a.d bea. power up to 100 kW,a.d they a.e working in industries a.l over the world.The ILU-10 a.d ILU-14 ma.hines a.e described a. well a. the industria. steriliza.ion fa.ility ba.ed on ILU-6,ILU-10 a.d ILU-14 ma.hines.

关键词：电子加速器菌物 U型物理研究所能量范围基础设施 Mev 工业

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Investiga.ion on low a.tiva.ed ma.eria.s on the ba.e of v-Ti-Cr a.loys

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广东有色金属学报 2005年第2期15卷 305-305页

作者： Pota.enko M. Shikov a. chernov.v. Drobishev v. Gubkin I . a.a.Bochva. Institute of Inorga.ic Ma.eria.s Moscow123060 Russia

Low a.tiva.ed ma.eria.s on the ba.e of va.a.ium a.e a.ong the key ma.eria.s for future fusion rea.tors. In the Russia. Federa.ion the long term Na.iona. Progra. on the development of such va.a.ium a.loys is under the ... 详细信息

关键词：铬钛合金活性材料显微结构热处理工艺

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近期和长远时段内北极生态系统功能受到的影响

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a.BIO－人类环境杂志 2004年第B11期33卷 424-434页

作者： Terry v.Ca.la.ha. La.s Olof Bjrn Yuri chernov Terry Cha.in Torben R.Christensen Bria. Huntley Rolf a.Ims Ma.ga.eta.Joha.sson Dya.na.Jolly Sven Jona.son Na.ya.Ma.veyeva.Nicola. Pa.ikov Wa.ter Oechel Gus Sha.er 杨陈梁君 a.isko Scientific Resea.ch Sta.ion Depa.tnent of Cell a.d Orga.ism Biology Lund University a.N.Severtsov Institute of Evolutiona.y Morphology a.d a.ima. Ecology Russia. a.a.emy of Sciences Institute of a.ctic Biology University of a.a.ka Depa.tment of Physica. Geogra.hy a.d Ecosystem a.a.ysis GeoBiosphere Science Centre Lund University School of Biologica. a.d Biomedica. Sciences University of Durha. Institute of Biology University of Troms Centre for Ma.ri a.d Indigenous Pla.ning a.d Development Lincoln University Physiologica. Ecology Group Bota.ica. Institute University of Copenha.en Koma.ov Bota.ica. Institute Russia. a.a.emy of Sciences Stevens Technica. University Globa. Cha.ge Resea.ch Group Sa. Diego Sta.e University The Ecosystems Center Ma.ine Biologica. La.ora.ory

长期以来,就营养物质和碳循环而言,北极生态系统降低了初级生产力;能量,水和温室气体交换的水平已引起了局部和区域性的小幅度降温。大气CO_2中的碳沉积在广袤而寒冷的有机土壤中,冰雪覆盖的低矮植被产生高的反射率,都影响了局部气候。... 详细信息

长期以来,就营养物质和碳循环而言,北极生态系统降低了初级生产力;能量,水和温室气体交换的水平已引起了局部和区域性的小幅度降温。大气CO_2中的碳沉积在广袤而寒冷的有机土壤中,冰雪覆盖的低矮植被产生高的反射率,都影响了局部气候。然而,北极生态系统功能的许多方面都对气候变化及其产生的生物多样性影响敏感。当前的北极气候导致了低的有机物质分解速率,因此,尽管有机物和元素输入量较低,但北极生态系统还是趋向于积累有机物和元素,土壤中氮和磷等可利用元素结果成为促进碳固定以及生物量和有机物进一步积累的关键性限制因素。气候变暖可能增加特别是土壤中的碳和元素的周转,起初可能导致元素的丢失,但最后会慢慢的恢复。在北极生态系统中,单个物种和物种多样性已经明显地影响了元素的输入和滞留,另一方面,从长远来看,尽管CO_2和紫外线增加对植物组织化学、分解和氮固定的影响可能变得重要,但对整个生态系统来说, 影响可能很小。碳循环的示踪气体主要形式是CO_2和CH_4,大多数碳以CO_2的形式损失,这些CO_2是由植物和土壤生物产生。来自潮湿苔原生态系统以CH_4形式释放的碳大约是CO_2形式的5%,而且在没有任何其他变化的情况下,对变暖作出响应。冬天过程和植物类型也影响CH_4释放和能量在生物圈和大气之间的交换,因为反射率从冬末到夏天存在很大的变化,在冬末,雪反射了入射的大部分光线,在夏天,生态系统吸收了入射的大部分光线,所以在所有的陆地生态系统中,北极生态系统在能量交换方面表现出巨大的季节性变化。植被深刻地影响北极生态系统水和能量交换。在冰雪覆盖期间,反射率从苔原、森林苔原、落叶林、常绿林依次降低。灌木和树增加了雪的深度,反过来又使冬天的土壤温度增加,因此,由气候变化而引起的未来植被方面的变化很可能深远地改变区域的气候。

关键词：生态系统功能苔原生态系统紫外线B辐射气候变化荒漠生态系统北极大气CO2 物种多样性有机物质

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