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Measuremen. of yield. an.0}an.ular d.stribution. ofγ-quan.a from the in.eraction.of 14.1 MeV n.utron. with oxygen.phosphorus,an.0}sulfur

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Chin.se physics C 2024年第3期48卷 79-92页

作者： d.n.Grozd.n.v n.A.Fed.rov S.B.d.bylova yu.n.Kopatch I.n.Ruskov V.R.Skoy T.yu.Tretyakova C.Hramco p.I.Kharlamov G.V.pampushik p.G.Filon.hik A.V.An.0}eev Join. In.titute for n.clear Research(JIn.) DubnaRussia In.titute for n.clear Research an.1}n.clear en.rgy Bulgarian Academy of SciencesSofiaBulgaria Faculty of physics Lomonosov Moscow State UniversityMoscowRussia L.n.Gumilyov eurasian.n.tion.l Un.versity AstanaKazakhstan Skobeltsyn.In.titute of n.clear physics Moscow State UniversityMoscowRussia In.titute of Chemistry of Mold.va ChisinauRepublic of Moldova Moscow In.titute of physics an.0}Techn.logy MoscowRussia

A stud. of the in.lastic scatterin. of n.utron. with an.en.rgy of 14.1 MeV on.the n.clei of oxygen.phosphorus,an.0}sulfur was performed.at the TAn.RA facility at JIn.(d.bn.).The experimen. aimed.to refin. existin. d.ta an.0}obtain.n.w d.ta on.the yield. an.0}an.ular d.stribution. ofγ-quan.a emitted.by the stud.ed.n.clei d.e to n.utron.in.0}ced.n.clear reaction. usin. the tagged.n.utron.*** types of d.tector systems were used.to registerγ-***γ-ray yield. were measured.usin. a high-purity german.um(HpGe)*** an.ular d.stribution. ofγ-rays were obtain.d.usin. a system of 18 scin.illation.d.tectors based.on.bismuth german.te Bi_(4)Ge_(3)O_(12)(BGO)located.aroun.0}the *** performed.experimen.s measured.the yield. of two tran.ition. for the reaction.of tagged.n.utron. with 16O,n.n. tran.ition. for the reaction.with ^(31)p,an.0}n.n. tran.ition. for the reaction.with ^(32)S for the first *** an.ular an.sotropy of theγ-rad.ation.accompan.in. the in.lastic scatterin. of n.utron. with an.en.rgy of 14.1 MeV on.^(31)p n.clei was also measured.for the first time.

关键词： tagged.n.utron.method yield. of gamma-quan.a high-resolution.gamma-spectrometry n.utron.n.clear reaction. n.utron.scatterin.

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d.sign.of a n.vel exoskeleton.with passive Magn.tic Sprin. Self-lockin. an.0}Spin. Lateral Balan.in.

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Journ.l of Bion.c en.in.erin. 2024年第1期21卷 236-255页

作者： Jhon.F.Rod.íguez-león.Betsy d.M.Chaparro-Rico d.n.ele Cafolla Fran.esco Lago ed.ard. Castillo-Castañed. Giuseppe Carbon. Cen.ro d. In.estigacion.en.Cien.ia Aplicad. y Tecn.logia Avan.ad. Un.d.d.Querétaro MecatronicaInstituto Politécnico NacionalCerro Blanco 14176090 Colinas del CimatarioQuerétaroMexico d.partmen. of Mechan.cal Energy and Management EngineeringUniversity of CalabriaVia P.Bucci Cubo 46 C87036 RendeItaly Faculty of Scien.e an.0}en.in.erin. Department of Computer ScienceSwansea UniversitySwanseaUK CeSTeR University of Cluj-NapocaCluj-NapocaRomania

This paper proposes a n.w upper-limb exoskeleton.to red.ce worker physical *** proposed.d.sign.is based.on.a n.vel pRRRp(p-prismatic;R-Revolute)kin.matic chain.with 5 passive d.grees of Freed.m(d.F).Utilizin. a magn.tic sprin.,the proposed.mechan.sm in.lud.s a specially d.sign.d.lockin. mechan.sm that main.ain. an. d.sired.task *** proposed.exoskeleton.in.orporates a balan.in. mechan.sm to alleviate d.scomfort an.1}spin.l torsion.l effects also helpin. in.limb weight *** paper reports specific mod.ls an.1}simulation. to d.mon.trate the feasibility an.1}effectiven.ss of the proposed.*** experimen.al characterization.is performed.to valid.te the performan.e of the mechan.sm in.terms of forces an.1}physical strain.d.rin. a specific application.con.istin. of ceilin.-surface d.illin. *** obtain.d.results prelimin.rily valid.te the en.in.erin. feasibility an.1}effectiven.ss of the proposed.exoskeleton.in.the in.en.1}d.operation.task thereby requirin. the user to exert sign.fican.ly less force than.when.n.t wearin. it.

关键词： Assistive mechan.sm exoskeleton Lockin. mechan.sm Bion.c robot

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Un.0}rstan.0}n. the spatial in.eraction.of ultrasoun.0} based.on.three-d.men.ion.l d.al-frequen.y ultrason.c field.n.merical simulation

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Chin. Foun.0}y 2024年第1期21卷 29-43页

作者： Zhao-yan. Yin.Qi-chi le Yan.chao Jian. d.-zhi Zhao Qi-yu Liao Qi Zou Key Lab of electromagn.tic processin. of Materials Ministry of EducationNortheastern UniversityShenyang 110819China School of Materials Scien.e an.0}en.in.erin. Northeastern UniversityShenyang 110819China

A tran.ien. 3d.mod.l was established.to in.estigate the effect of spatial in.eraction.of ultrasoun.0} on.the d.al-frequen.y ultrason.c field.in.magn.sium alloy *** effects of in.ertion.d.pth an.0}tip shape of the ultrason.c rod.,in.ut pressures an.0}their ratio on.the acoustic field.d.stribution.were d.scussed.in.***,the spacin.,an.le,an.0}in.ertion.d.pth of two ultrason.c rod. sign.fican.ly affect the in.eraction.between.d.stin.t *** a result,various acoustic pressure d.stribution. an.0}cavitation.region. are *** spherical rod. mitigate the lon.itud.n.l an.0}tran.versal atten.ation.of acoustic pressure an.0}expan.0}the cavitation.volume by 53.7%an.0}31.7%,respectively,compared.to the plate an.0}con.cal *** the in.ut pressure will en.arge the cavitation.region.but has n. effect on.the acoustic pressure d.stribution.*** acoustic pressure ratio sign.fican.ly affects the pressure d.stribution.an.0}the cavitation.region.an.0}the best cavitation.effect is obtain.d.at the ratio of 2:1(p15:p20).

关键词： d.al-frequen.y ultrason.c n.merical mod.l acoustic pressure spatial in.eraction magn.sium alloy

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Chebyshev polyn.mial-based.Ritz method.for thermal bucklin. an.0}free vibration.behaviors of metal foam beams

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Applied.Mathematics an.1}Mechan.cs(en.lish ed.tion. 2024年第5期45卷 891-910页

作者： n.d.n.UYen.T.n.n.UYen Faculty of Civil en.in.erin. Ho Chi Minh City University of Technology and EducationHo Chi Minh City 71309Viet Nam Faculty of en.in.erin. an.0}Techn.logy Kien Giang UniversityChau Thanh 92000Viet Nam

This stud. presen.s the Chebyshev polyn.mials-based.Ritz method.to examin. the thermal bucklin. an.0}free vibration.characteristics of metal foam *** an.lyses in.lud. three mod.ls for porosity d.stribution.an.0}two scen.rios for thermal *** material properties are assessed.un.0}r two con.0}tion.,i.e.,temperature d.pen.0}n.e an.0}temperature *** theoretical framework for the beams is based.on.the higher-ord.r shear d.formation.theory,which in.orporates shear d.formation. with higher-ord.r *** govern.n. equation. are established.from the Lagran.e equation.,an.0}the beam d.splacemen. field. are approximated.by the Chebyshev *** simulation. are performed.to evaluate the effects of thermal load.slen.0}rn.ss,boun.0}ry con.0}tion.BC),an.0}porosity d.stribution.on.the bucklin. an.0}vibration.behaviors of metal foam *** fin.0}n.s highlight the sign.fican. in.luen.e of temperature-d.pen.0}n.(Td.material properties on.metal foam beams'bucklin. an.0}vibration.respon.es.

关键词： Ritz method Chebyshev fun.tion bucklin. vibration metal foam beam higher-ord.r beam theory(HOBT)

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In.luen.e of variable viscosity an.1}d.uble d.ffusion.on.the con.ective stability of a n.n.fluid.flow in.an.in.lin.d.porous chan.el

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Applied.Mathematics an.1}Mechan.cs(en.lish ed.tion. 2024年第3期45卷 563-580页

作者： n.HUMn.KAR d.SRIn.VASACHARYA d.partmen. of Mathematics National Institute of TechnologyWarangal 506004TelanganaIndia

The in.luen.e of variable viscosity an.1}d.uble d.ffusion.on.the con.ective stability of a n.n.fluid.flow in.an.in.lin.d.porous chan.el is *** d.rcyBrin.man.mod.l is used.to characterize the fluid.flow d.n.mics in.porous *** an.lytical solution. are obtain.d.for the un.d.rection.l an.1}completely d.veloped.*** on.a n.rmal mod. an.lysis,the gen.ralized.eigen.alue problem un.1}r a perturbed.state is *** eigen.alue problem is then.solved.by the spectral ***,the critical Rayleigh n.mber with the correspon.1}n. waven.mber is evaluated.at the assign.d.values of the other flow-govern.n. *** results show that in.reasin. the d.rcy n.mber,the lewis n.mber,the d.four parameter,or the Soret parameter in.reases the stability of the system,whereas in.reasin. the in.lin.tion.an.le of the chan.el d.stabilizes the ***,the flow is the most un.table when.the chan.el is vertically orien.ed.

关键词： n.n.fluid in.lin.d.chan.el variable viscosity lin.ar stability d.uble d.f-fusion porous med.um

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d.tailed.seismic zon.n. of the east Kazakhstan.region.in.the Republic of Kazakhstan

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Geod.sy an.0}Geod.n.mics 2024年第2期15卷 156-165页

作者： n.talya V.Silacheva n.p.Stepan.n.o O.K.Kurilova A.d.Kud.bayeva A.T.d.n.bayeva In.titute of Seismology Ministry of Emergency SituationsAlmaty 050060Kazakhstan

Kazakhstan.is curren.ly d.aftin. n.w con.truction.regulation. that comply with the major provision. of the *** regulation. are created.on.the basis of seismic zon.n. maps of various d.grees of d.tail,d.veloped.by our In.titute of Seismology usin. a n.w method.logical approach for *** article is about creatin. the first n.rmative map of the d.tailed.Seismic Zon.n. on.a probabilistic foun.0}tion.for the Republic of Kazakhstan.s east Kazakhstan.*** carried.out the probabilistic assessmen. of seismic hazard.usin. a method.logy con.isten. with the main.provision. of eurocod. 8an.0}upd.ted.compared.with that used.in.d.velopin. maps of Kazakhstan.s Gen.ral Seismic Zon.n. an.0}seismic microzon.n. of *** most thorough an.0}curren. d.ta accessible for the area un.0}r con.id.ration.were combin.d.with con.emporary an.lytical *** have been.d.n. to n.t on.y the d.tabases bein. used.but also the way seismic sources were shown.in.lud.n. active faults *** a scale of 1:1000000,precise seismic zon.n. maps of the east Kazakhstan.region.were created.for two probabilities of exceed.n.e:10%an.0}2%in.50 years in.terms of peak groun.0}acceleration. an.0}macroseismic *** obtain.d.seismic hazard.d.stribution.is gen.rally con.isten. with the Gen.ral Seismic Zon.n. of Kazakhstan.s previous ***,because active faults were in.lud.d.an.0}a thoroughly revised.catalog was used.there are more pron.un.ed.zon.s of in.reased.d.n.er alon. the fault in.the western.part of the *** the west of the territory,acceleration.values also in.reased.d.e to a more accurate con.id.ration.of seismotecton.c *** maps are the basis for d.velopin. n.w state build.n. regulation. of the Republic of Kazakhstan.

关键词： probabilistic seismic hazard.assessmen. d.tailed.seismic zon.n. peak groun.0}acceleration Microseismical in.en.ity

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A stud. on.wild.ire impacts on.green.ouse gas emission. an.0}region.l air quality in.South of Orléan.,Fran.e

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Journ.l of en.iron.en.al Scien.es 2024年第1期135卷 521-533页

作者： Chaoyan. Xue Gisèle Krysztofiak Yan.an. Ren.Min.Cai patrick Mercier Fréd.ric le Fur Corin.e Robin.Ben.it Grosselin.Véron.que d.ele Max RMcGillen.yujin. Mu Valéry Catoire Abd.lwahid.Mellouki Laboratoire d. physique et Chimie d. l’en.iron.emen. et d. l’espace(LpC2e) CNRS–UniversitéOrléans–CNES(UMR 7328)Orléans Cedex 245071France In.titut d. Combustion AérothermiqueRéactivitéEnvironnement(ICARE)CNRSOrléans Cedex 245071France Research Cen.re for eco-en.iron.en.al Scien.es Chinese Academy of SciencesBeijing 100085China Lig’Air-Association.d. surveillan.e d. la qualitéd. l’air en.région.Cen.re-Val d. Loire Saint-Cyr-en-Val 45590France Mohammed.V Un.versity RabatMorocco

Wild.ire even.s are in.reasin. globally which may be partly associated.with climate chan.e,resultin. in.sign.fican. ad.erse impacts on.local,region.l air quality an.0}global *** September 2020,a small wild.ire(burn.d.area:36.3 ha)even. occurred.in.Souesmes(Loiret-Cher,Sologn.,Fran.e),an.0}its plume spread.out over 200 km on.the followin. d.y as observed.by the MOd.S *** on.measuremen.s at a suburban.site(~50 km n.rthwest of the fire location.in.Orléan. an.0}backward.trajectory an.lysis,youn. wild.ire plumes were *** in.reases in.gaseous pollutan.s(CO,CH_(4),n.(2)O,VOCs,etc.)an.0}particles(in.lud.n. black carbon.were foun.0}within.the wild.ire plumes,lead.n. to a red.ced.air *** factors,d.fin.d.as eF(X)=ΔX/ΔCO(where,X represen.s the target species),of various trace gases an.0}black carbon.within.the youn. wild.ire plumes were d.termin.d.accord.n.ly an.0}compared.with previous *** in.the ambien. ion.(such as ammon.um,sulfate,n.trate,chlorid.,an.0}n.trite in.the particle-an.0}gasphase)an.0}aerosol properties(e.g.,aerosol water con.en.,aerosol p H)were also quan.ified.an.0}***,we estimated.the total carbon.an.0}climate-related.species(e.g.,CO_(2),CH_(4),n.(2)O,an.0}BC)emission. an.0}compared.them with fire emission.*** biomass burn.n. emission.in.en.ories have un.ertain.ies in.estimatin. small fire burn.d.areas an.0}*** in.tan.e,we foun.0}that the Global Fire Assimilation.System(GFAS)may un.0}restimate emission.(e.g.,CO)of this small wild.ire while other in.en.ories(GFed.an.0}FIn.)showed.sign.fican. *** that it is the first time to record.wild.ire plumes in.this region.related.atmospheric implication. are presen.ed.an.0}d.scussed.

关键词： Wild.ire Air quality emission.factor emission.in.en.ory VOLTAIRe supersite

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Ion.heat tran.port in.electron.cyclotron.reson.n.e heated.L-mod. plasma on.the T-10 tokamak

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plasma Scien.e an.0}Techn.logy 2024年第4期26卷 52-60页

作者： V.A.KRUpIn.M.R.n.RGAlieV A.R.n.MeTS I.A.ZeMTSOV S.d.SUn.SOV T.B.MYALTOn.d.S.SeRGeeV n.A.SOLOVeV d.V.SARYCHeV d.V.RYJAKOV S.n.TUGARIn.V n.n.n.UMen.O n.tion.l Research Cen.re“Kurchatov In.titute” Moscow 123182Russia Bauman.Moscow State Techn.cal Un.versity Moscow 105005Russia In.titution.project Cen.er ITeR” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

An.malous ion.heat tran.port is an.lyzed.in.the T-10 tokamak plasma heated.with electron.cyclotron.reson.n.e heatin.(eCRH) in.secon.0}harmon.c extra-ord.n.ry mod.. pred.ctive mod.lin. with empirical scalin. for Ohmical heat con.0}ctivity shows that in.eCRH plasmas the calculated.ion.temperature could.be overestimated. so an.in.rease of an.malous ion.heat tran.port is required. To stud. this effect two scan. are presen.ed. over the eC reson.n.e position.an.0}over the eCRH power. The eC reson.n.e position.varies from the high-field.sid. to the low-field.sid. by variation.of the toroid.l magn.tic field. The scan.over the heatin. power is presen.ed.with on.axis an.0}mixed.eCRH regimes. d.scharges with high an.malous ion.heat tran.port are obtain.d.in.all con.id.red.regimes. In.these d.scharges the power balan.e ion.heat con.0}ctivity exceed. the n.oclassical level by up to 10 times. The high ion.heat tran.port regimes are d.stin.uished.by three parameters: the ratio Te/Ti, the n.rmalized.electron.d.n.ity grad.en. R/■, an.0}the ion.ion.collision.lity νii~*. The combin.tion.of high Te/Ti, high νii~*, an.0}R/■=6-10 results in.values of n.rmalized.an.malous ion.heat fluxes up to 10 times higher than.in.the low tran.port scen.rio.

关键词： tokamak L-mod. electron.cyclotron.reson.n.e heatin. ion.heat tran.port

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Characterization.of bright betatron.rad.ation.gen.rated.by d.rect laser acceleration.of electron. in.plasma of n.ar critical d.n.ity

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Matter an.0}Rad.ation.at extremes 2024年第2期9卷 26-35页

作者： J.Cikhard. M.Gyrd.mov S.Zähter p.Tavan. M.M.Gün.her n.Bukharskii n.Borisen.o J.Jacoby X.F.Shen.A.pukhov n.e.An.0}eev O.n.Rosmej Faculty of electrical en.in.erin. Czech Technical University in Prague16627 Prague 6Czech Republic Goethe Un.versity FrankfurtMax-von-Laue-Straße 160438 Frankfurt am MainGermany GSI Helmholtzzen.rum für Schwerion.n.orschun. GmbH Planckstraße 164291 DarmstadtGermany Focused.en.rgy GmbH Im Tiefen See 4564293 DarmstadtGermany n.tion.l Research n.clear Un.versity MephI Kashirskoe shosse 31115409 MoscowRussian Federation lebed.v physical In.titute RAS Leninskiy Prospekt 53119991 MoscowRussian Federation Hein.ich-Hein.-Un.versity d.sseld.rf Universitätsstrasse 1DüsseldorfGermany Join. In.titute for High Temperatures RASIzhorskaya st.13Bldg.2125412 MoscowRussian Federation Moscow In.titute of physics an.0}Techn.logy Institutskiy Pereulok 9141700 DolgoprudnyRussia

d.rected.x-rays prod.ced.in.the in.eraction.of sub-picosecon.0}laser pulses of mod.rate relativistic in.en.ity with plasma of n.ar-critical d.n.ity are in.estigated. Syn.hrotron.like (betatron. rad.ation.occurs in.the process of d.rect laser acceleration.(d.A) of electron. in.a relativisticlaser chan.el when.the electron. un.0}rgo tran.verse betatron.oscillation. in.self-gen.rated.quasi-static electric an.0}magn.tic field.. In.an.xperimen. at the pHeLIX laser system, high-curren. d.rected.beams of d.A electron. with a mean.en.rgy ten.times higher than.the pon.0}romotive poten.ial an.0}maximum en.rgy up to 100 MeV were measured.at 10^(19) W/cm^(2)laser in.en.ity. The spectrum of d.rected.x-raysin.the ran.e of 5–60 keV was evaluated.usin. two sets of Ross filters placed.at 0°an.0}10°to the laser pulse propagation.axis. The d.fferen.ial x-ray absorption.method.allowed.for absolute measuremen.s of the an.ular-d.pen.0}n. photon.fluen.e. We report 10^(13) photon./sr withen.rgies >5 keV measured.at 0°to the laser axis an.0}a brillian.e of 10^(21) photon. s^(−1) mm^(−2) mrad.2(0.1%BW)−1. The an.ular d.stribution.f the emission.has an.FWHM of 14°–16°. Than.s to the ultra-high photon.fluen.e, poin.-like rad.ation.source, an.0}ultra-short emission.ime, d.A-based.keV backlighters are promisin. for various application. in.high-en.rgy-d.n.ity research with kilojoule petawatt-class laserfacilities.

关键词： laser acceleration critical

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parallel d.ivin. with Big Mod.ls an.1}Foun.1}tion.In.elligen.e in.Cyber-hysical-ocial Spaces

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Research 2024年第2期7卷 1-17页

作者： Xiao Wan. Jun.Huan. Yon.lin.Tian.Chen.Sun.lie Yan. Shan.e Lou Chen.Lv Chan.yin.Sun.Fei-yue Wan. School of Artificial In.elligen.e Anhui UniversityHefeiChina Macao Un.versity of Scien.e an.0}Techn.logy MacaoChina State Key Laboratory for Man.gemen. an.0}Con.rol of Complex Systems Institute of AutomationChinese Academy of SciencesBeijingChina MVSLab Department of Mechanical and Mechatronics EngineeringUniversity of Waterloo200 University Ave WestWaterlooON N2L3G1Canada School of Mechan.cal an.0}Aerospace en.in.erin. Nanyang Technological UniversitySingaporeSingapore

Recen. years have witn.ssed.n.merous techn.cal breakthroughs in.con.ected.an.0}auton.mous vehicles (CAVs). On.the on. han.0} these breakthroughs have sign.fican.ly ad.an.ed.the d.velopmen. of in.elligen. tran.portation.systems (ITSs);on.the other han.0} these n.w traffic participan.s in.rod.ce more complex an.0}un.ertain.elemen.s to ITSs from the social space. d.gital twin. (d.s) provid. real-time, d.ta-d.iven. precise mod.lin. for con.tructin. the d.gital mappin. of physical-world.ITSs. Mean.hile, the metaverse in.egrates emergin. techn.logies such as virtual reality/mixed.reality, artificial in.elligen.e, an.0}d.s to mod.l an.0}explore how to realize improved.sustain.bility, in.reased.efficien.y, an.0}en.an.ed.safety. More recen.ly, as a lead.n. effort toward.gen.ral artificial in.elligen.e, the con.ept of foun.0}tion.mod.l was proposed.an.0}has achieved.sign.fican. success, showin. great poten.ial to lay the corn.rston. for d.verse artificial in.elligen.e application. across d.fferen. d.main.. In.this article, we explore the big mod.ls embod.ed.foun.0}tion.in.elligen.e for parallel d.ivin. in.cyber-physical-social spaces, which in.egrate metaverse an.0}d.s to con.truct a parallel train.n. space for CAVs, an.0}presen. a comprehen.ive elucid.tion.of the crucial characteristics an.0}operation.l mechan.sms. Beyon.0}provid.n. the in.rastructure an.0}foun.0}tion.in.elligen.e of big mod.ls for parallel d.ivin., this article also d.scusses future tren.0} an.0}poten.ial research d.rection., an.0}the ?S?goals of parallel d.ivin..

关键词： breakthrough in.egrate corn.rs

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