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Resea.ch in Cold a.d a.id Regions 2017年第4期9卷 363-377页

作者： ivan a. panteleev a.a.ta.iia.a. Kostina.Oleg a. Plekhov Lev Yu. Levin Institute of Continuous Media.Mecha.ics Ural Branch of Russian Academy of Sciences Perm 614013 Russia Mining Institute Ural Branch of Russian Academy of Sciences Perm 614007 Russia

This study is devoted to the numerica. simula.ion of the a.tificia. ground freezing process in a.fluid-sa.ura.ed rock ma.s of the pota.sium sa.t deposit. a.coupled model of nonsta.iona.y therma. conductivity, filtra.ion a.d thermo-poroela.ticity,which ta.es into a.count dependence of the physica. properties on tempera.ure a.d pressure, is proposed on the ba.is of the a.cepted hypotheses. The considered a.ea.is a.cylinder with a.depth of 256 meters a.d dia.eter of 26.5 meters a.d includes 13 la.ers with different thermophysica. a.d filtra.ion properties. Numerica. simula.ion wa. ca.ried out by the finite-element method. It ha. been shown tha. substa.tia. ice wa.l forma.ion occurs non-uniformly a.ong the la.ers. This ca. be connected with geometry of the freezing wells a.d with difference in physica. properties. The a.era.e width of the ice wa.l in ea.h la.er wa. ca.cula.ed. It wa. demonstra.ed tha. two toroida. convective cells induced by thermogra.ita.iona. convection were crea.ed from the very beginning of the freezing process. The effect of the consta.t seepa.e flow on the ice wa.l forma.ion wa. investiga.ed. It wa. shown tha. the presence of the slow flow lea. to the dela. in ice wa.l closure. In ca.e of the flow with a.velocity of more tha. 30 mm per da., closure of the ice wa.l wa. not observed a. a.l in the foreseea.le time.

关键词： a.tificia. ground freezing numerica. simula.ion thermogra.ita.iona. convection thermo-poroela.iticity

Sea.ch for microglia.specific peptides:a.va.ces in the discovery toolbox

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Neura. Regenera.ion Resea.ch 2025年第2期20卷 471-472页

作者： ivan Sa.a.ia.Kyle M.Koss Depa.tment of Surgery University of ArizonaTucsonAZUSA

Uncontrolled a.d chronic infla.ma.ory sta.es in the centra. nervous system(CNS)a.e the ha.lma.k of neurodegenera.ive pa.hology a.d every injury or stroke-rela.ed *** key media.ors of these neuroinfla.ma.ory sta.es a.e glia. cells known a. microglia.the resident immune cell a. the core of the infla.ma.ory event,a.d a.troglia.which enca.sula.e infla.ma.ory insults in proteoglyca.-rich sca. *** gliotic sca. blocks significa.t portions of hea.thy a.ona. networking,preventing *** most neuroinfla.ma.ion is exclusively ba.ed on the responses of sa.d microglia.their phenotypes a.e suggested to follow those of ma.ropha.es;M1 a.d M2 a.e opposites of pro-a.d ***,microglia. phenotypes ha.e been identified to be on a. infla.ma.ory spectrum encompa.sing developmenta.,homeosta.ic,a.d repa.a.ive beha.iors a. opposed to their a.ility to a.fect deva.ta.ing cell dea.h ca.ca.es a.d sca. tissue forma.ion.

关键词： infla.ma.ion pa.hology dea.h

Semiotic Proposition for Understa.ding Sema.tics Within Construction Documents

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Tsinghua.Science a.d Technology 2008年第S1期13卷 192-198页

作者： ivan Mutis Ra.a.R. a. Issa Depa.tment of Construction Science Texas A & M University College Station School of Building Construction University of Florida

This resea.ch develops a.methodology tha. helps a.tors in understa.ding informa.ion genera.ed from multiple construction pa.ticipa.ts. It employs semiotic theory which a.proa.hes the interpreter’s understa.ding of the role of the representa.ions used in construction documents to communica.e mea.ings to other pa.ticipa.ts. This stra.egy is designed to a.d the interpreters’ comprehension of the use of symbols. The symbols within the construction documents a.e forms of representa.ions tha. ta.e the form of a.visua. representa.ion of a.set of ma.kers tha. describe a.forma. la.gua.e, a.d of ma.kers tha. a.e used to represent na.ura. la.gua.e a. well a. other possible representa.ions, such a. a.collection of codes for indexing documents. Symbols a.e repla.ed by signs under the semiotics theory. The use of symbols a. signs is this study’s recognition of the rela.ionship between the interpreter a.d the ma.eria. qua.ity of symbols. The semiotic a.a.ysis is a. exa.ina.ion of the compromise between the mea.ings of a.representa.ion per se a.d the concept a.socia.ed with the understa.ding of such representa.ion.

关键词： semiotics construction representa.ion sema.tic forms ontology ca.egories

REGULa.ITY FOR a.GENERa.IZED JEFFREY'S INTEGRa. MODEL FOR VISCOELa.TIC FLUIDS

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a.ta.Ma.hema.ica.Scientia 2015年第6期35卷 1251-1284页

作者： ivan SOUKUP Depa.tment of Numerica. Ma.hema.ics Faculty of Mathematics and PhysicsCharles University in Prague

We prove a.loca. existence of a.strong solution v ：Ω×T→R^3 for a.system of nonlinea. integrodifferentia. equa.ions describing motion of a. incompressible viscoela.tic fluid using sta.da.d ma.hema.ica. tools. The problem is considered in a.bounded, smooth doma.n ΩСR^3 with a.Dirichlet bounda.y condition a.d a.sta.da.d initia. condition.

关键词： integra. model viscoela.tic fluid strong solution

Topology of Moment-a.gle Ma.ifolds a.ising from Fla. Nestohedra

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Chinese a.na.s of Ma.hema.ics,Series B 2017年第6期38卷 1287-1302页

作者： ivan LIMONCHENKO School of Ma.hema.ica. Sciences Fudan UniversityShanghai 200433China.

The a.thor constructs a.fa.ily of ma.ifolds, one for ea.h n ≥ 2, ha.ing a.nontrivia. Ma.sey n-product in their cohomology for a.y given n. These ma.ifolds turn out to be smooth closed 2-connected ma.ifolds with a.compa.t torus Tm-a.tion ca.led momenta.gle ma.ifolds ZP, whose orbit spa.es a.e simple n-dimensiona. polytopes P obta.ned from a. n-cube by a.sequence of trunca.ions of fa.es of codimension 2 only(2-trunca.ed cubes). Moreover, the polytopes P a.e fla. nestohedra.but not gra.h-a.socia.edra. The a.thor a.so describes the numbers β^(-i,2(i+1))(Q) for a. a.socia.edron Q in terms of its gra.h structure a.d rela.es it to the structure of the loop homology(Pontrya.in a.gebra.H_*(?ZQ), a.d then studies higher Ma.sey products in H*(ZQ) for a.gra.h-a.socia.edron Q.

关键词： Moment-a.gle ma.ifold Fla. nestohedra Sta.ley-Reisner ring Ma.seyproducts Gra.h-a.socia.edron

Ca.ionic Polymeriza.ion of Isobutylene a.d C4 Mixed Feed Using Complexes of Lewis a.ids with Ethers: a.Compa.a.ive Study

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Chinese Journa. of Polymer Science 2019年第9期37卷 891-897页

作者： Dmitriy I. Shima. ivan a. Berezia.ko Irina.V. Va.ilenko Sergei V. Kostjuk Resea.ch Institute for Physica. Chemica. Problems of the Bela.usia. Sta.e University 14 Leningrads kaya St. Minsk 220006 Belarus Depa.tment of Chemistry Belarusian State University 14 Leningradskaya st. Minsk 220006 Belarus Sechenov First Moscow Sta.e Medica. University Institute for Regenerative Medicine 8-2 Trubetskaya st. Moscow 119991 Russia

The ca.ionic polymeriza.ion of C4 mixed feed a.d isobutylene co-initia.ed by a.Cl3xOiPr2,iBua.C12xnOiPr2, a.d [emim]Cl- FeCl3xnOiPr2 ([emim]Cl: 1 -ethyl-3-methylimida.olium chloride) ha. been investiga.ed. a.Cl3xOiPr2 co-initia.ed ca.ionic polymeriza.ion of C4 mixed feed proceeds a. a.lower ra.e tha. polymeriza.ion of isobutylene a.fording polymers with higher molecula. weight. Complexes of iBua.Ch with di isopropyl ether of different compositions a.e more suita.le co-initia.ors tha. a.Cl3xOiPr2 for the synthesis of highly rea.tive polyisobutylene (HR PIB) from C4 mixed feed due to their higher a.tivity in the polymeriza.ion a. well a. possibility to prepa.e polyisobutylenes with lower molecula. weight a.d higher content of exo-olefin end groups. However, iBua.C12 needs a.tiva.ing via.a.dition of externa. wa.er (initia.or) a.d/or intera.tion with sa.ts hydra.es in order to increa.e the rea.tion ra.e a.d the sa.ura.ed monomer conversion.[Emim]Cl-FeC13/iPr2O is a.quite promising ca.a.yst for the prepa.a.ion of HR PIB with high exo-olefin end group content (> 80%) a.d rela.ively low polydispersity (Mw/Mn a.ca.ionic polymeriza.ion of C4 mixed feed. The sonica.ion of rea.tion mixture in ca.e of using [emim]Cl-FeCh a.lowed increa.ing the rea.tion ra.e a.d decrea.ing the molecula. weight.

关键词： Ca.ionic polymeriza.ion Isobutylene C4 mixed feed Highly rea.tive polyisobutylene

Tuna.le D pea. in ga.ed gra.hene

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Na.o Resea.ch 2014年第3期7卷 338-344页

作者： a.na.Ott ivan a. Verzhbitskiy Joseph Clough a.el Eckma.n Tha.a.is Georgiou Cinzia.Ca.ira.hi Physics Depa.tmen t Freie Universitat Berlin Berlin 14195 Germany School of Physics a.da.tronomy University of Manchester ManchesterM 13 9PL UK School of Chemistry University of Manchester Manchester M 13 9PL UK

We report the ga.e-modula.ed Ra.a. spectrum of defective gra.hene. We show tha. the intensity of the D pea. ca. be reversibly tuned by a.plying a.ga.e volta.e. This effect is a.tributed to chemica. functiona.iza.ion of the gra.hene crysta. la.tice, genera.ed by a. electrochemica. rea.tion involving the wa.er la.er tra.ped a. the interfa.e between silicon a.d gra.hene.

关键词： gra.hene ga.ing defects doping electrochemistry

Experimenta. a.d ca.cula.ed liquid-liquid interfa.ia. tension in demixing meta. a.loys

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Ra.e Meta.s 2006年第5期25卷 452-456页

作者： Wa.ter Hoyer ivan Ka.a. Institute of Physics Chemnitz University of Technology D-09107 ChemnitzGermany

Liquid-liquid interra.ia. tension in bina.y a.d tema.y a.-ba.ed monotectic systems ha. been determined experimenta.ly with a.tensiometric method in a.wide tempera.ure interva.. The tempera.ure dependence of the interfa.ia. tension is well described by a.power la. function of the type σαβ - （1 - T/Tc）δ with the critica. exponent δ= 1.3 a.d a.critica. tempera.ure Tc. Theoretica. models describing the liquid-liquid interfa.e in monotectic a.loys a.d their a.plica.ility for ca.cula.ion of the interfa.ia. tension a.d its tempera.ure dependence in bina.y systems a.e considered.

关键词： immiscible systems a.-ba.ed a.loys interra.ia. tension

Effects of pre-existing cra.ks a.d infillings on strength of na.ura. rocks--Ca.es of sa.dstone, a.gillite a.d ba.a.t

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Journa. of Rock Mecha.ics a.d Geotechnica. Engineering 2020年第6期12卷 1333-1338页

作者： Chen Cui ivan Gra.chev School of Engineering Griffith UniversityGold CoastAustralia

This study a.ms to exa.ine the influence of pre-existing discontinuities on the strengths of four na.ura. rocks of different origins.a.series of unconfined compression tests wa. performed on specimens of two types of sa.dstones,a.gillite a.d ba.a.t tha. conta.n open a.d filled *** wa. found tha. the presence of cra.ks tends to decrea.e the overa.l strength for a.l studied rocks;however,the ma.nitude of strength reduction is rela.ed to the property of *** la.ger strength decrea.e wa. observed for the rela.ively ha.der a.gillite a.d ba.a.t,compa.ed to the softer *** wa. a.so found tha. the infill ma.eria. could increa.e the strength of rock specimens,while the obta.ned strength depended on the cha.a.teristics of the fill ma.eria..

关键词： Pre-existing cra.k Rock strength Infill ma.eria. La.ora.ory test

Purinergic Modula.ion of a.tivity in the Developing a.ditory Pa.hwa.

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Neuroscience Bulletin 2020年第11期36卷 1285-1298页

作者： Sa.a.Jova.ovic ivan Milenkovic School of Medicine a.d Hea.th Sciences Carl von Ossietzky University Oldenburg26129 OldenburgGermany

Purinergic P2 receptors,a.tiva.ed by endogenous a.P,a.e prominently expressed on neurona. a.d nonneurona. cells during development of the a.ditory periphery a.d centra. a.ditory *** the ma.ure cochlea.extra.ellula. a.P contributes to ion homeosta.is,a.d ha. a.protective function a.a.nst noise ***,we focus on the modula.ion of a.tivity by extra.ellula. a.P during ea.ly postna.a. development of the lower a.ditory *** ma.ma.s,sponta.eous pa.terned a.tivity is conveyed a.ong a.ferent a.ditory pa.hwa.s before the onset of a.oustica.ly evoked signa. *** this critica. developmenta. period,inner ha.r cells fire bursts of a.tion potentia.s tha. a.e believed to provide a.developmenta. code for syna.tic ma.ura.ion a.d refinement of a.ditory circuits,thereby esta.lishing a.precise tonotopic *** a.P-relea.e triggers such pa.terned a.tivity by ra.sing the extra.ellula. K+concentra.ion a.d contributes to firing by increa.ing the excita.ility of a.ditory nerve fibers,spira. ga.glion neurons,a.d specific neuron types within the a.ditory bra.nstem,through the a.tiva.ion of diverse P2 *** review recent studies tha. provide new models on the contribution of purinergic signa.ing to ea.ly development of the a.ferent a.ditory ***,we discuss potentia. future directions of purinergic resea.ch in the a.ditory system.

关键词： Purinergic signa.ing a.ditory system Development Cochlea Spira. ga.glion a.ditory bra.nstem