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Journal of Electrical Engineering 2014年第1期2卷 34-38页

作者： Tetiana A. Dontsov. Iryna M. Iv.nenko igor M. Astrelin Sv.tlana v. Nagimyak Department of Chemistry National Technical University of Ukraine “KPI” Kyiv 03056 Ukraine

Surface of oxidized multiwalled carbon nanotubes was inv.stigated for stabilization of nanosized tin(Iv. oxide. The synthesis of nanosized tin(Iv. oxide on the surface of carbon nanotubes was carried out with the use of three soft chemical methods sol-gel, precipitation, and thermal. The synthesized tin(Iv. oxide particles on the surface of carbon nanotubes were studied by thermal analysis, X-ray diffraction and electron microscopy. The lattice parameters of tin(Iv. oxide on the surface of multiwalled carbon nanotubes were calculated.

关键词：电气控制控制理论电气测量集中参数

Anticlockwise metamorphic paths at ca.890–790 Ma from the NE Baidrag block,Mongolia,indicate back-arc compression at the Rodinia periphery

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Geoscience Frontiers 2023年第2期14卷 154-181页

作者： Pav.aŠtípská v.t Peresty igor Soejono Karel Schulmann RCAndrew Kylander-Clark Carmen Aguilar Stephen Collett Martin Racek Jitka Míkov. Otgonbaatar Dorjsuren Nikol Nov.tná Czech Geological Surv.y 11821 Praha 1Czech Republic Institute of Petrology and Structural Geology Charles University in PragueAlbertov 6Praha 212800Czech Republic Institut Terre et Env.ronnement de Strasbourg UMR 7063 Universitéde Strasbourg-CNRS1 Rue Blessig67084 StrasbourgCedexFrance Department of Earth Science University of CaliforniaSanta BarbaraCA 93106United States Department of Mineralogy Petrology and Applied GeologyFaculty of Earth ScienceUniversity of Barcelona08028 BarcelonaSpain Institute of Geology Mongolian Academy of SciencesLabor Union StreetSonginokhairkhan DistrictUlaanbaatar 18080Mongolia

The processes leading to the assembly of the Rodinia supercontinent through Grenv.llian collisional orogeny are relativ.ly well *** contrast,accretionary orogenic processes occurring at the supercontinent periphery following Rodinia assembly are poorly *** fill this gap,we hav. identified metamorphic rocks in the Mongolia collage of the Central Asian Orogenic Belt,where numerous data testify for Meso-to Neoproterozoic magmatic *** tectono-metamorphic ev.lution of the periSiberian tract of the Central Asian Orogenic Belt is mainly characterized by the late Proterozoic–early Cambrian(Baikalian)***,we document here a Tonian age metamorphism at the northern part of the Precambrian Baidrag block,prev.ously considered as a typical example of the Baikalian metamorphic *** study incorporates zircon and in-situ monazite geochronology linked to P-T modelling of Grt-Sil-Ky migmatite gneiss and Grt-St ***-Sil-Ky gneiss records initial burial to the sillimanite stability field at 720℃ and 6.0 kbar followed by further burial to the kyanite stability field at 750℃ and 9 kbar and decompression to 650℃ and 8 *** Grt-St schist records initial burial to the staurolite stability field at 620℃ and 6 kbar,followed by further burial to 590℃ and 8.5 *** monazite data yield a continuum of ^(207)Pb-corrected ^(238)U/^(206)Pb dates of ca.926–768 Ma in the Grt-Sil-Ky gneiss,and ca.937–754 Ma in the Grt-St *** on monazite textural positon,internal zoning,and REE patterns,the time of prograde burial to 6.0 kbar under a thermal gradient of 27–32℃/km is estimated at ca.890–853 *** is not clear whether such high-grade conditions prev.iled until a phase of further burial under a geothermal gradient of 18–22℃/km dated at ca.835–815 *** late monazite recrystallization at ca.790 Ma is related to ***,monazite with dates of ca.568–515 Ma occur as whole grains or as rims with sharp boundaries on Tonian monaz

关键词： Central Asian Orogenic Belt Grenv.llian-age metamorphism Monazite in-situ U-Pb dating Monazite REE composition Zircon U-Pb dating Thermodynamic modelling

Interpretations of the cosmic ray secondary-toprimary ratios measured by DAMPE

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Frontiers of physics 2023年第4期18卷 95-110页

作者： Peng-Xiong Ma Zhi-Hui Xu Qiang Yuan Xiao-Jun Bi Yi-Zhong Fan igor v.oskalenko Chuan Yue Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Univ.rsity of Chinese Academy of Sciences Beijing 100049China W.W.Hansen Experimental Physics Laboratory and Kav.i Institute for Particle Astrophysics and Cosmology Stanford UniversityStanfordCA 94305USA

Precise measurements of the boron-to-carbon and boron-to-oxygen ratios by DAMPE show clear hardenings around 100 Gev.n,which prov.de important implications on the production,propagation,and interaction of Galactic cosmic *** this work we inv.stigate a number of models proposed in literature in light of the DAMPE *** models can roughly be classified into two classes,driv.n by propagation effects or by source *** these models discussed,we find that the re-acceleration of cosmic rays,during their propagation,by random magnetohydrodynamic wav.s may not reproduce sufficient hardenings of B/C and B/O,and an additional spectral break of the diffusion coefficient is *** other models can properly explain the hardenings of the ***,depending on simplifications assumed,the models differ in their quality in reproducing the data in a wide energy *** models with significant re-acceleration effect will under-predict low-energy antiprotons but ov.r-predict low-energy positrons,and the models with secondary production at sources ov.r-predict high-energy *** all models high-energy positron excess exists.

关键词： cosmic rays propagation

Prospects for the use of olfactory mucosa cells in bioprinting for the treatment of spinal cord injuries

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World Journal of Clinical Cases 2023年第2期11卷 322-331页

作者： Olga v.adislav.v.a Stepanov. Grigorii Andreev.ch Fursa Sv.tlana Sergeev.a Andretsov. v.lentina Sergeev.a Shishkina Anastasia Denisov.a v.ronov. Andrey v.ktorov.ch Chadin Ekaterina Konstantinov.a Karsuntsev. igor v.adimirov.ch Reshetov.v.adimir Pav.ov.ch Chekhonin Department of Basic and Applied Neurobiology V.P.Serbsky National Medical Research Center for Psychiatry and NarcologyMoscow 119034Russia Department of Neurohumoral and Immunological Research National Medical Research Center of CardiologyMoscow 121552Russia Department of Biology Moscow State UniversityMoscow 119991Russia Department of Plastic Surgery I.M.Sechenov First Moscow State Medical UniversityMoscow 119435Russia Department of Medical Nanobiotechnologу N.I.Pirogov Russian National Research Medical UniversityMoscow 117997Russia

The rev.ew focuses on the most important areas of cell therapy for spinal cord *** mucosa cells are promising for *** these cells is safe for *** use of olfactory mucosa cells is effectiv. in restoring motor function due to the remyelination and regeneration of axons after spinal cord *** cells express neurotrophic factors that play an important role in the functional recov.ry of nerv. tissue after spinal cord *** addition,it is possible to increase the content of neurotrophic factors,at the site of injury,exogenously by the direct injection of neurotrophic factors or their deliv.ry using gene *** adv.ntages of olfactory mucosa cells,in combination with neurotrophic factors,open up wide possibilities for their application in threedimensional and four-dimensional bioprinting technology treating spinal cord injuries.

关键词： Olfactory mucosa cells Neurotrophic factors Cell therapy Injury of spinal cord Three-dimensional bioprinting Four-dimensional bioprinting

Thermodynamic potential and phase diagram for multiferroic bismuth ferrite(BiFeO_(3))

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npj Computational Materials 2017年第1期3卷 284-293页

作者： Dmitry v.Karpinsky Eugene A.Eliseev.Fei Xue Maxim v.Silibin Alexandra Franz Maya D.Glinchuk igor O.Troyanchuk Sergey A.Gav.ilov.v.nkatraman Gopalan Long-Qing Chen Anna N.Morozov.ka Scientific-Practical Materials Research Centre of NAS of Belarus P.Brovki str.19 Minsk 220072Belarus National Research Univ.rsity of Electronic Technology“MIET” Bld.1Shokin sq.ZelenogradMoscow 124498Russia Institute for Problems of Materials Science National Academy of Sciences of UkraineKrzhizhanovsky str.3 Kyiv 03680Ukraine Department of Materials Science and Engineering Pennsylvania State UniversityUniversity Park State CollegePA 16802USA Helmholtz Center Berlin Hahn-Meitner-Platz 1Berlin 14109Germany Institute of Physics National Academy of Sciences of Ukraine46pr.Nauky Kyiv 03028Ukraine

We construct a Landau-Ginzburg thermodynamic potential,and the corresponding phase diagram for pristine and slightly doped bismuth ferrite,a ferroelectric antiferromagnet at room *** potential is dev.loped based on new X-ray and neutron diffraction experiments complementing av.ilable *** demonstrate that a strong biquadratic antiferrodistortiv.-type coupling is the key to a quantitativ. description of Bi_(1−x)La_(x)FeO_(3) multiferroic phase diagram including the temperature stability of the antiferromagnetic,ferroelectric,and antiferrodistortiv. phases,as well as for the prediction of nov.l intermediate structural ***,we show that“rotomagnetic”antiferrodistortiv.-antiferromagnetic coupling is v.ry important to describe the ferroelectric polarization and antiferrodistortiv. tilt behav.or in the R3c phase of BiFeO_(3).The Landau-Ginzburg thermodynamic potential is able to describe the sequence of serial and trigger-type phase transitions,the temperature-dependent behav.or of the order parameters,and the corresponding susceptibilities to external *** can also be employed to predict the corresponding ferroelectric and antiferrodistortiv. properties of Bi_(1−x)La_(x)FeO_(3) thin films and nanoparticles by incorporating the gradient and surface energy terms that are strongly dependent on the shape,size,and preparation method.

关键词： ferrite ferroelectric diagram

The optical tweezer of skyrmions

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npj Computational Materials 2020年第1期6卷 484-490页

作者： Xi-Guang Wang Lev.n Chotorlishv.li v.talii K.Dugaev.Arthur Ernst igor v.Maznichenko Nikita Arnold Chenglong Jia Jamal Berakdar Ingrid Mertig Józef Barnaś School of Physics and Electronics Central South University410083 ChangshaChina Institut für Physik Martin-Luther Universität Halle-Wittenberg06099 HalleSaaleGermany Department of Physics and Medical Engineering Rzeszów University of Technology35-959 RzeszówPoland Institute for Theoretical Physics Johannes Kepler UniversityAltenberger Straße 694040 LinzAustria Max Planck Institute of Microstructure Physics Weinberg 206120 HalleSaaleGermany Soft Materials Lab Linz Institute of Technology LITJohannes Kepler University LinzAltenberger Straße 694040 LinzAustria Department of Soft Matter Physics Institute for Experimental PhysicsJohannes Kepler UniversityAltenberger Straße 694040 LinzAustria Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University730000 LanzhouChina Faculty of Physics Adam Mickiewicz University61-614 PoznańPoland

In a spin-driv.n multiferroic system,the magnetoelectric coupling has the form of effectiv. dynamical Dzyaloshinskii–Moriya(DM)***,it is confirmed,for instance,for Cu_(2)OSeO_(3),that the DM interaction has an essential role in the formation of skyrmions,which are topologically protected magnetic *** skyrmions are v.ry robust and can be manipulated through an electric *** external electric field couples to the spin-driv.n ferroelectric polarization and the skyrmionic magnetic texture emerged due to the DM *** this work,we demonstrate the effect of optical *** a particular configuration of the external electric fields it is possible to trap or release the skyrmions in a highly controlled *** functionality of the proposed tweezer is v.sualized by micromagnetic simulations and model analysis.

关键词： interaction field instance

MAIN GEOLOGICAL Ev.NTS ON EASTERN MARGIN OF PALEOASIA CONTINENT IN JURASSIC

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MAIN GEOLOGICAL EVENTS ON EASTERN MARGIN OF PALEOASIA CONTIN...

Determination of the Onset of Mechanical Destruction of Silv.r Azide Crystals Initiated by a Laser Pulse

侏罗系界限及地质事件国际学术研讨会

作者： igor v.Kemkin Far East Geological Institute Far Eastern Branch of Russian Academy of SciencesVladivostokprospect 100-letiya Vladivostoka159Russia

＜正＞Jurassic is important period in the geological ev.lution and formation of geological structure of East and Southeast Asia continental margin. During this time the different-age and different-facies formations of...

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World Journal of Mechanics 2011年第4期1卷 203-207页

作者： v.dim. G. Kriger Alexander. v. Kalenskii Alexander A. Zv.kov.Marina v. Anan'ev. Elena A. Grishaev. igor U. Zykov 不详

The onset of the silv.r azide simple destruction was experimentally determined. Three independent methods were used—comparativ. inv.stigation of the explosiv. luminescence from all the experimental area and from the laser action area, inv.stigation of conductiv.ty and acoustic system response. It was shown that the simple destruction and the products emission begins in 20 ÷ 50 nsec after the initiation pulse peak.

关键词： Azide Silv.r Explosion Decomposition Onset of Mechanical Destruction Luminescence Kinetics

Nucleation of dislocations and twins in fcc nanocrystals: Dynamics of structural transformations

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Journal of Materials Science & Technology 2019年第1期35卷 201-206页

作者： Aleksandr v.Korchuganov.Aleksandr N.Tyumentsev.Konstantin P.Zolnikov.igor Yu.Litov.henko Dmitrij S.Kryzhev.ch Elazar Gutmanas Shouxin Li Zhongguang Wang Sergey G.Psakhie Institute of Strength Physics and Materials Science of Siberian Branch of Russian Academy of Sciences National Research Tomsk State Univ.rsity Technion–Israel Institute of Technology Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

This paper reports on a molecular dynamics study of structural rearrangements in a copper nanocrystal during nucleation of plastic deformation under uniaxial tension. The study shows that the resulting nucleation of partial dislocations on the free surface and their glide occurs through local fcc→bcc→hcp transformations v.a consistent atomic displacements. We propose an atomic model for the generation of dislocations and twins based on local rev.rsible fcc→bcc→fcc transformations, with the rev.rse one proceeding through an alternativ. system. The model giv.s an insight into possible causes and mechanisms of the generation of partial dislocations and mechanical twins in two and more adjacent planes of plastically deformed nanocrystals. The obtained data allow a better understanding of how plasticity is generated in nanostructured materials.

关键词： Lattice defects Dislocation Nanotwin Atomic model Molecular dynamics simulations