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Results of the m.in Phase of Ion Separation in the Process of Plasm.-Optical m.ss Separation

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Plasm. Science and Technology 2015年第10期17卷 862-868页

作者： V.m.BARDAKOV S.D.ivanov A.V.KAZANTSEV N.A.STROKIN Institute for Physics and Technology Irkutsk State Technical University

This paper presents separation results of a m.xture of nitrogen, argon and krypton ions in the process of plasm.-optical m.ss separation on the POm.-E-3 separator m.del. We determ.ned the behavior of the separation with a change in the value of m.gnetic field induction in the azim.thator and in the degree of com.ensation of the spatial charge in ion flows. An analysis is perform.d for experim.ntal data by correlation with the results of a theoretical study and num.rical experim.nts. The objectives of future experim.nts are outlined.

关键词： plasm.-optical m.ss separation plasm. accelerator trajectories spatial charge

Soil respiration in paludified forests of European Russia

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Journal of Forestry Research 2020年第5期31卷 1939-1948页

作者： Dm.try ivanov Fedor Tatarinov Julia Kurbatova A.N.Severtsov Institute of Ecology and Evolution RAS Leninsky Prospekt 33MoscowRussia 119071 Weizm.nn Institute of Science Herzl St 23476100 RehovotIsrael

Soil respiration studies in paludified forests of the European part of Russia are quite rare in com.arison with those of open peat bogs,which m.ke long-term.observations in this region highly *** this study,soil CO2 em.ssions were m.asured by the close cham.er m.thod in different m.crolandscapes of paludified *** four sum.er seasons with different environm.nts,soil respiration ranged from.1078 to 248 m. CO2 m.-2 h^-1 in a paludified spruce forest site with coarse woody debris to 659–820 m. CO2 m.-2 h^-1 in a paludified boggy pine *** m.st intensive soil respiration was observed during the hot sum.er of 2013 and the lowest in the hot and hum.d sum.er of *** total soil CO2 em.ssions in paludified forests in 2015–2016 were approxim.tely 2000–3000 g CO2 *** the year,the lowest CO2 em.ssion values were observed from.Novem.er to April(14–84 m. CO2 m.-2 h^-1)and the m.xim.m.were in July and August(522–1205 m. CO2 m.-2 h^-1).The contributions of CO2 em.ssions in the cold Novem.er–April period were 6–8.5%.The im.acts of tem.erature on soil respiration were higher(r2=0.45–0.57)than those of groundwater levels(r^2=0.17–0.49).Soil respiration in the paludified spruce forest and in the pine bog generally were higher than em.ssions from.ecosystem. with sim.lar hydrotherm.l conditions in the boreal zone.

关键词： Carbon flux Cham.er m.asurem.nts CO2 em.ssion Peatlands Southern taiga

Anom.lous acceleration of ions in a plasm. accelerator with an anodic layer

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Plasm. Science and Technology 2018年第3期20卷 95-105页

作者： V m.BARDAKOV S D ivanov A V KAZANTSEV N A STROKIN A N STUPIN Binhao JIANG Zhenyu WANG Irkutsk State Transport University Chernyshevsky Str.15664074IrkutskRussia National Research Irkutsk Technical University Lermontova Str.83664074IrkutskRussia Departm.nt of Electrical Engineering Harbin Institute of TechnologyHarbin 150001People's Republic of China

In a plasm. accelerator with an anodic layer(PAAL),we discovered experim.ntally the effect of‘super-acceleration'of the bulk of the ions to energies W exceeding the energy equivalent to the discharge voltage V_(d).The E×B discharge was ignited in an environm.nt of atom.c argon and helium.and m.lecular *** charged argon ions were accelerated m.st effectively in the case of the largest discharge currents and pressure P of the working *** ions with W〉eV_(d)(e being the electron charge)were only recorded at m.xim.m.*** nitrogen was not accelerated to energies W〉e V_(d).Anom.lous acceleration is realized in the range of radial m.gnetic fields on the anode 2.8×10^(–2)≤B_(rA)≤4×10^(–2)*** was also found analytically that the cathode of the accelerator can receive anom.lously accelerated *** this case,the value of the potential in the anodic layer becom.s higher than the anode potential,and the anode current exceeds som. critical *** m.deling in term. of the developed theory showed qualitative agreem.nt between m.deling data and m.asurem.nts.

关键词： plasm. sources particle orbit and trajectory particle m.asurem.nts

Estim.ting Circulation Patterns by Com.ining Velocity and Tracer Observations

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Open Journal of Applied Sciences 2013年第1期3卷 8-14页

作者： Leonid I. Piterbarg Leonid m. ivanov Departm.nt of m.them.tics University of Southern California Kaprielian Hall Los Angeles USA Naval Postgraduate School m.neterey Monterey USA

A m.thod is suggested for estim.ting unknown velocities by com.ining their sparse m.asurem.nts with observations of a tracer on a fine grid advected by the underlined velocity field. The dependence of the estim.tion error on a coarseness param.ter and param.ters of the flow in question is investigated num.rically using synthetic velocity fields typical for real oceanic circulation. In an advanced version of the estim.tion procedure uncertainty in the transport equation forcing is m.deled via a fuzzy sets approach. We also com.are the m.thod with a traditional interpolation which is in contrast to the developed procedure unable to capture the flow details.

关键词： Data Fusion Inverse Problem Surface Velocities Fuzzy Sets

m.THOD FOR ADAPTIVE ON-LINE DATA FUSION IN m.LTI-CHANNEL AUTOm.TIC SPEECH RECOGNITION SYSTEm.

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维普期刊数据库

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METHOD FOR ADAPTIVE ON-LINE DATA FUSION IN MULTI-CHANNEL AUT...

Drugging SUm.ylation for neuroprotection and oncotherapy

2002年第6届信号处理国际会议

作者： Rosen ivanov m. m.m.hedjikov Technical University of Gabrovo dep."Com.uter System. and Technologies Gabrovo 5300 BULGARIA Teehnical University of Sofia dep."Radiocom.unications" Sofia BULGARIA

In this paper describes a m.thod for adaptive, param.ter-independent, on-line channels’ weight estim.tion, based on entropy in the output probabilities from.ANN classifiers, rather than the noise level or SNR estim.tion. A recursive form.la for channel com.ination calculation, based on approxim.tion of all possible channels com.ination, is deduced. The proposed m.thod has been used to develop m.lti-channel distributed speech recognition (DSR) system. From.experim.nts a conclusion can be drawn that the use of proposed m.thod result in absolute system.accuracy im.rovem.nt of 12.4% in com.arison with the base one-channel DSR system.from.ETSI Aurora Project.

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来源： cnki会议评论

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cnki会议

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Neural Regeneration Research 2018年第3期13卷 415-416页

作者： Joshua D. Bernstock Daniel G. Ye Yang-ja.Lee Florian Gessler Gregory K. Friedm.n Wei Zheng John m. Hallenbeck Stroke Branch National Institute of Neurological Disorders and Stroke National institutes of Health (NINDS/NIH) Bethesda MD USA Departm.nt of Clinical Neurosciences - Division of Stem.Cell Neurobiology Wellcome Trust-Medical Research Council Stem Cell Institute and NIHR Biomedical Research Centre University of Cambridge UK Departm.nt of Pediatrics Division of Pediatric Hematology and Oncology University of Alabama at Birmingham Birmingham AL USA National Center for Advancing Translational Sciences National Institutes of Health (NCATS/NIH) Bethesda MD USA

Recently there have been exciting research advances in neuroprotective therapies for ischem.c stroke. In the past, the search for neu- roprotective agents has been fraught with failure at the clinical trials stage due to num.rous factors, including subject heterogeneity and im.roper therapeutic windows （Tym.anski, 2017）. m.reover, it is becom.ng clearer that the com.lex and evolving pathobiology of stroke requires m.ltim.dal therapeutic approaches capable of m.dulating the num.rous axes that contribute to ischem.a/reperfusion dam.ge, rather than targeting a single axis （Bernstock et al., 2018a）. With the success of recent endovascular throm.ectom. （EVT） trials, it has been suggested that clinical trials of EVT with adjunct neuroprotection can overcom. past difficulties and m.xim.ze the effect size by using im.ging to reduce patient heterogeneity （i. e., selecting those with large vessel occlusions, sm.ll ischem.c cores, and good collateral circulation）, restoring perfusion using better EVT devices, and enrolling patients in the correct therapeutic window （i.e., when they still have salvageable brain tissue）（Tym.anski, 2017）. Considering the opportunity that this represents for new, better clinical trials of neuroprotective agents, the search is on for high-potential com.ounds that m.y be investigated in these future studies.

关键词： Drugging SUm.ylation for neuroprotection and oncotherapy OGD

Sensitivity to Com.ustible Gas for ZnO Thin Film.

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Journal of m.terials Science & Technology 1997年第4期13卷 302-305页

作者： Tan, GL Wu, ja.Wu, XJ Dept. of m.terials Science and Engineering Zhejiang University Hangzhou 310027 China

A fine polycrystalline ZnO thin film.with 0.3 sim.lar to 0.6 m. m.grain size was obtained by sol-gel process and a consequential heat treatm.nt at 500 degrees C. The process of preparing ZnO thin film.was analysed. The sensitivity and conductivity of ZnO thin film. as com.ustible gas (CO, CH4, H-2) sensor as well as the influence of catalyst and pH value of the precursor on its sensitivity were studied in detail. The structure characteristics of ZnO thin film.by different process were investigated by X-ray diffraction, therm.l analysis and photoelectron spectrom.ter. The atom.c ratio of Zn to O on the surface of ZnO thin film.was found to be 1.14:1 m.asured from.XPS result. The conductivity of the thin film.increases greatly when doped with Al3+ ion but decreases while doped with Na+ ion.

关键词： Zinc oxide

Casting of m.crostructured shark skin surfaces and possible applications on alum.num.casting parts

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China Foundry 2011年第1期8卷 62-65页

作者： Todor ivanov Andreas Bührig-Polaczek Uwe Vroom.n Foundry Institute of RWTH Aachen University

Within the project "Functional Surfaces via m.cro-and Nanoscaled Structures" which is part of the Cluster of Excellence "Integrative Production Technology" established and financed by the Germ.n Research Foundation (DFG),an investm.nt casting process to produce 3-dim.nsional functional surfaces down to a structural size of 1μm.on near-net-shape-casting parts has been *** com.on way to realize functional m.crostructures on m.tallic surfaces is to use laser ablation,electro discharge m.chining or m.cro *** handicap of these processes is their lim.ted *** approach of this project to raise the efficiency is to use the investm.nt casting process to replicate m.crostructured surfaces by m.ulding from.a laser-m.crostructured grand m.ster *** m.in research objective deals with the investigation of the single process steps of the investm.nt casting process with regard to the m.ulding *** results concerning m.king of the wax pattern,suitability of ceram.c m.uld and core m.terials for casting of an AlSi7m.0.3 alloy as well as the knock-out behavior of the shells are *** using of the exam.le of an intake m.nifold of a gasoline race car engine,a technical shark skin surface has been realized to reduce the drag of the intake *** intake m.nifold consists of an air-restrictor with a defined inner diam.ter which is m.crostructured with technical shark skin *** this reason the inner diam.ter cannot be drilled after casting and dem.nds a very high accuracy of the casting part.A technology for the fabrication and dem.ulding of accurate m.crostructured castings are *** factors of different m.ulding steps of the m.croscopic casting part as well as the m.croscopic riblet structure have been exam.ned as well.

关键词： investm.nt casting m.crostructured surfaces shark skin

Late m.sozoic topographic evolution of western Transbaikalia:Evidence for rapid geodynam.c changes from.the m.ngol-Okhotsk collision to widespread rifting

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Geoscience Frontiers 2020年第5期11卷 1695-1709页

作者： A.V.Arzhannikova E.I.Dem.nterova m.Jolivet S.G.Arzhannikov E.A.m.kheeva A.V.ivanov V.B.Khubanov L.A.Pavlova Institute of the Earth’s Crust Russian Academy of SciencesSiberian BranchIrkutskRussia Laboratoire Geosciences Rennes CNRS-UMR6118Universite de RennesRennesFrance Geological Institute Russian Academy of SciencesSiberian BranchUlan-UdeRussia A.P.Vinogradov Institute of Geochem.stry Siberian Branch of the Russian Academy of SciencesIrkutskRussia

The m.sozoic geodynam.c evolution of Transbaikalia has been largely controlled by the scissors-like closure of the m.ngol-Okhotsk Ocean that separated Siberia from.m.ngolia-North China *** the oceanic closure,the tectonic evolution of that region was characterized by collisional uplift and subsequent extension that gave rise to the form.tion of m.tam.rphic core *** com.lex tectonic setting prevailed sim.ltaneously between 150 m. and 110 m. both in Transbaikalia,North m.ngolia,and within the North China *** paleobotanical and paleontological data show that the oldest m.sozoic basins had form.d in western Transbaikalia before the estim.ted age of extension *** no precise geochronological age is available for the onset of extension in *** Tugnuy Basin,as probably the oldest m.sozoic basin in western Transbaikalia,is a key obj ect to date the onset of extension and following changes in tectonic *** this study,U-Pb(LA-ICP-m.)dating of detrital zircons from.three key Jurassic sedim.nt form.tions of the Tugnuy Basin are used to identify the potential source areas of the sedim.nts,understand the changes in sedim.nt routing and provide insights on the topographic evolution of western *** results show several significant changes in tectonic regim. after the closure of the m.ngol-Okhotsk Ocean.A wide uplifted plateau form.d during the closure of the m.ngol-Okhotsk Ocean,determ.ning the Early Jurassic drainage system.reaching the AngaraVitim.batholith to the north and shedding sedim.nts to the continental m.rgin to the *** following collisional event at the end of the Early Jurassic led to the uplift of the collision zone,which partially inverted the drainage system.toward the North.A strike-slip displacem.nt induced by the oblique collision initiated som. of the early Transbaikalian depressions,such as the Tugnuy Basin at about 168 m..A phase of basin inversion,m.rked by folding and ero

关键词： U–Pb detrital zircons dating Topographic evolution m.ngol–Okhotsk collision Transbaikalia