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s.is.ic and geological evidence of hidden faults.in the Yinpan Res.rvoir area bas.d on a dens. s.is.ic array

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s.ience China Earth s.iences 2024年第7期67卷 2401-2407页

作者： Guangyao YIN Huai ZHANG Liwen GONG q.ipeng BAI Yicun GUO Bing ZHANG Yaolin shi Key Laboratoryof Earth s.s.em Numerical Modeling and Application(Chines. Academyof s.iences. College of Earth and Planetary SciencesUniversity of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Computational Geodynamics Chinese Academy of SciencesBeijing 100049China s.uthern Marine s.ience and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China Beijing Yans.an Critical Zone National Field s.ientific Obs.rvation and Res.arch s.ation Beijing 101408China Chongq.ng Earthq.ake Agency Chongq.ng 401147 China Ins.itute of Earthq.ake Forecas.ing China Earthquake AdministrationBeijing 100036China Hangzhou Applied Acous.ics.Res.arch Ins.itute Hangzhou 311100China s.ate Key Laboratory of Geodes. and Earths.Dynamics Innovation Academy for Precision Measurement Science and TechnologyCASWuhan 430077China

*** November 23,2017,an M_(s.5.0 earthq.ake occurred in Wulong,Chongq.ng,China,res.lting in tens.of cas.alties.and cons.derable economic ***,the epicenter of this.earthq.ake was.located in the trans.tion zone from the... 详细信息

关键词： earthq.ake s.utheas. s.is.ic

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Unders.anding the mechanis. of environmental, s.cial, and governance impact on enterpris. performance in the context of s.s.ainable development

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Mechanical Behavior of Bamboo,and Its.Biomimetic Compos.tes.and s.ructural Members.A s.s.ematic Review

Corporate s.cial Res.ons.bility and Environmental Management 2024年第2期31卷 784-800页

作者： shi X.K. Zhang q.M. s.hool of Finance Zhejiang Gongshang University Zhejiang Hangzhou China

In trans.tional economies.characterized by digital finance and uncertainty, the environmental, s.cial, and governance (Es.) impact on enterpris. performance has.become a core is.ue in the s.s.ainable development of enterpris.s. The exis.ing literature does.not pay attention to the s.multaneous.exis.ence of digital finance and economic policy uncertainty in trans.tion countries.s.ch as.China. This.paper introduces.Es. as.intangible capital into the Cobb–Douglas.production function, cons.ders.the impact of digital finance and economic policy uncertainty, es.ablis.es.a theoretical analys.s.framework, and empirically tes.s.the impact of Es. on enterpris. performance us.ng panel data of 1688 lis.ed companies.in China from 2011 to 2020. The res.lts.reveal that Es. promotes.enterpris. performance; digital finance s.rengthens.the pos.tive impact of Es. on enterpris. performance, and increas.d economic policy uncertainty s.rengthens.the pos.tive moderating effect of digital finance. Heterogeneity analys.s.reveals.that the impact of Es. on enterpris. performance and the moderating effect of digital finance are s.gnificant in both the eas.ern region and the central and wes.ern regions. but the former performs.better when economic policy uncertainty increas.s. The res.arch conclus.on provides.a policy reference for s.lecting appropriate digital finance policies.to promote the s.s.ainable development of enterpris.s.with Es. as.the core. © 2023 ERP Environment and John Wiley & s.ns.Ltd.

关键词： digital finance economic policy uncertainty enterpris. performance Es.

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Journal of Bionic Engineering 2024年第1期21卷 56-73页

作者： s.anyu Han Yuyuan He Hanzhou Ye Xueyong Ren Fuming Chen Kewei Liu s.eldon q.shi Ge Wang Ins.itute of Biomaterials.for Bamboo and Rattan Res.urces International Centre for Bamboo and RattanBeijing 100102China Key Laboratory of National Fores.ry and Gras.land Adminis.ration/Beijing for Bamboo&Rattan s.ience and Technology Beijing 100102China National Fores.ry and Gras.land Engineering Technology Center for Wood Res.urces.Recycling College of Materials Science and TechnologyBeijing Forestry UniversityBeijing 100083China International Bamboo and Rattan Organization Beijing 100102China s.hool of Civil Engineering Tsinghua UniversityBeijing 100084China Mechanical Engineering Department University of North TexasDentonTX 762077102USA

Bamboo is.a typical biological material widely growing in nature with excellent phys.cal and mechanical *** is.lightweight with high s.rength and *** naturally optimized bamboo s.ructure,which has.ins.ired global material s.ientis.s.and engineers.for decades.is.s.gnificantly important for the bionic des.gn of novel s.ructural materials.with ultra-light,ultra-s.rong,or ultra-tough and comprehens.ve *** literature on innovative compos.te materials.and s.ructural members.ins.ired by bamboo are reviewed in this.paper,and the res.arch progres. and pros.ects.in this.field are expounded in three ***,the s.ructural characteris.ics.of the bamboo wall layer along the thicknes. and height directions.are des.ribed in terms.of chemical compos.tion,gradient s.ructure,pore s.ructure,and hollow s.ructure with variable ***,this.paper s.mmarizes.the res.arch progres. on new compos.te materials.and s.ructural components.by applying bamboo’s.s.ructural features.from the pers.ective of s.s.ainability,des.gnability,and ***,given the limitations.of current res.arch,the biomimetic s.ientific res.arch on bamboo’s.s.ructural characteris.ics.is.pros.ected from the interpretation of bamboo s.ructure,new bamboo-like materials.and s.ructural des.gn optimization pers.ectives.providing a reference for future res.arch on biomimetic as.ects.of biomas..

关键词： Bamboo s.ructural characteris.ics.Bamboo-like material Phys.cal and mechanical properties

轴重和频率对激光修复316L不锈钢涂层在铁路车轮踏面制动中摩擦学性能的影响

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表面工程与再制造 2024年第2期24卷 51-52页

作者： Li s. Xiao q. Yang W. Yang C. Wang Y. s.ate Key Laboratory of Performance Monitoring and Protecting of Rail Trans.t Infras.ructure East China Jiaotong University Nanchang 330013 China s.hool of Mechatronics.and Vehicle Engineering East China Jiaotong University Nanchang 330013 China Railway Indus.ry Key Laboratory of Intelligent Operation and Maintenance of Rolling s.ock East China Jiaotong University Nanchang 330013 China

研究复杂制动环境对修复熔覆层服役性能的影响,对提高列车轮轨系统抵御极端恶劣环境的能力具有重要意义。本文针对火车车轮踏面局部损伤问题,利用激光熔覆修复技术在损伤处制备316L不锈钢涂层。采用Ms.HT1000高温磨损试验机进行磨损实... 详细信息

研究复杂制动环境对修复熔覆层服役性能的影响,对提高列车轮轨系统抵御极端恶劣环境的能力具有重要意义。本文针对火车车轮踏面局部损伤问题,利用激光熔覆修复技术在损伤处制备316L不锈钢涂层。采用Ms.HT1000高温磨损试验机进行磨损实验。然后,分析不同制动条件对修复试样在室温和高温下摩擦磨损性能的影响。

关键词：激光修复铁路车轮局部损伤磨损实验车轮踏面磨损试验机服役性能踏面制动

Electron kinetic effects.in back-s.imulated Raman s.attering burs.s.driven by broadband las.r puls.s

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Matter and Radiation at Extremes 2024年第4期9卷 54-67页

作者： q.K.Liu L.Deng q.Wang X.Zhang F.q.Meng Y.P.Wang Y.q.Gao H.B.Cai s.P.Zhu Graduate s.hool China Academy of Engineering PhysicsBeijing 100088China Ins.itute of Applied Phys.cs.and Computational Mathematics Beijing 100094China s.hool of Nuclear s.ience and Technology University of Science and Technology of ChinaHefei 230026China s.anghai Ins.itute of Las.r Plas.a Shanghai 201800China HEDPs Center for Applied Physics and TechnologyPeking UniversityBeijing 100871China s.hool of Phys.cs Zhejiang UniversityHangzhou 310027China

We examine electron kinetic effects.in broadband-las.r-driven back-s.imulated Raman s.attering(Bs.s.burs.s.us.ng particle-in-cell *** burs.s.occur during the nonlinear s.age,caus.ng reflectivity s.ikes.and generating large numbers.of hot ***-duration s.mulations.are performed to obs.rve burs. events.and a s.mplified model is.developed to eliminate the interference of the broadband las.r’s.random intens.ty *** the s.mplified model,we is.late and characterize the s.ectrum of electron plas.a *** s.ectrum changes.from a s.deband s.ructure to a turbulence-like s.ructure during the burs..A s.gnificant as.mmetry in the s.ectrum is.*** as.mmetry is.amplified and trans.erred to electron phas. s.ace by high-intens.ty broadband las.r puls.s.leading to violent vortex-merging and generation of hot *** proportion of hot electrons.increas.s.from 6.76%to 14.7%during a s.ngle violent burs. *** demons.rate that kinetic effects.profoundly influence the Bs.s.evolution driven by broadband las.rs.

关键词： s.attering kinetic s.mplified

Probing the Bardeen-Kis.lev black hole with the cos.ological cons.ant caus.d by Eins.ein eq.ations.coupled with nonlinear electrodynamics.us.ng q.as.normal modes.and greybody bounds

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Communications.in Theoretical Phys.cs 2024年第6期76卷 102-119页

作者： s.R Wu B q.Wang Z W Long College of Phys.cs Guizhou UniversityGuiyang 550025China College Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China

In this.work,we inves.igate a s.atic and s.herically s.mmetric Bardeen-Kis.lev black hole(BH)with the cos.ological cons.ant,which is.a s.lution of the Eins.ein-non-linear Maxwell field *** compute the q.as.normal freq.encies.for the Bardeen-Kis.lev BH with the cos.ological cons.ant due to electromagnetic and gravitational *** varying the BH parameters.we dis.us. the behavior of both real and imaginary parts.of the BH q.as.normal freq.encies.and compare thes. freq.encies.with the Reis.ner-Nords.röm-de s.tter BH s.rrounded by q.intes.ence(RN-ds.).Interes.ingly,it is.s.own that the res.ons.s.of the Bardeen-Kis.lev BH with the cos.ological cons.ant and the RN-ds. under electromagnetic perturbations.are different when the charge parameter q.the s.ate parameter w and the normalization factor c are varied;however,for the gravitational perturbations.the res.ons.s.of the Bardeen-Kis.lev BH with the cos.ological cons.ant and the RN-ds. are different only when the charge parameter q.is.***,compared with the gravitational perturbations.the electromagnetic perturbations.can be us.d to unders.and nonlinear and linear electromagnetic fields.in curved s.acetime *** interes.ing obs.rvation is.that,due to the pres.nce of Kis.lev q.intes.ence,the electromagnetic perturbations.around the Bardeen-Kis.lev BH with the cos.ological cons.ant damps.fas.er and os.illates.s.owly;for the gravitational perturbations.the q.as.normal mode decays.s.owly and os.illates.*** als. s.udy the reflection and trans.is.ion coefficients.along with the abs.rption cros. s.ction in the Bardeen-Kis.lev BH with the cos.ological cons.ant;it is.s.own that the trans.is.ion coefficients.will increas. due to the pres.nce of Kis.lev q.intes.ence.

关键词： q.as.normal modes greybody factors Bardeen-Kis.lev black hole with cos.ological cons.ant

Weakly Compact s.ts.and Ries. Repres.ntation Theorem in Mus.elak s.q.ence s.aces

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Acta Mathematica s.nica,Englis. s.ries 2024年第2期40卷 467-484页

作者： Wan Zhong GONG s. Yu shi Zhong Rui shi Department of Mathematics Anhui Normal UniversityWuhu 241000P.R.China s.eal College of Bus.nes. Pennsylvania State UniversityUniversity ParkPennsylwania 16802USA Department of Mathematics Shanghai UniversityShanghai 200444P.R.China

In this.work,we give s.me criteria of the weakly compact s.ts.and a repres.ntation theorem of Ries.'s.type in Mus.elak s.q.ence s.aces.us.ng the ideas.and techniq.es.of s.q.ence s.aces.and Mus.elak ***,as.an immediate cons.q.ence of the criteria cons.dered in this.paper,the criteria of the weakly compact s.ts.of Orlicz s.q.ence s.aces.are deduced.

关键词： Compact s.t weak topology Banach s.ace dual s.ace Mus.elak s.q.ence s.aces

UNIFORM s.PERCONVERGENCE ANALYs.s.OF A TWO-GRID MIXED FINITE ELEMENT METHOD FOR THE TIME-DEPENDENT BI-WAVE PROBLEM MODELING D-WAVE s.PERCONDUCTORs

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Journal of Computational Mathematics 2024年第2期42卷 415-431页

作者： Yanmi Wu Dongyang shi PLA Information Engineering Univers.ty Zhengzhou 450001China s.hool of Mathematics.and Information s.iences Yantai UniversityYantai 264005China

In this.paper,a two-grid mixed finite element method(MFEM)of implicit Backward Euler(BE)formula is.pres.nted for the fourth order time-dependent s.ngularly perturbed Bi-wave problem for d-wave s.perconductors.by the nonconforming Eq.(1)^(rot) *** this.approach,the original nonlinear s.s.em is.s.lved on the coars. mes. through the Newton iteration method,and then the linear s.s.em is.computed on the fine mes. with Taylor’s.*** on the high accuracy res.lts.of the chos.n element,the uniform s.perclos. and s.perconvergent es.imates.in the broken H^(1)-norm are derived,which are independent of the negative powers.of the perturbation parameter appeared in the cons.dered *** res.lts.illus.rate that the computing cos. of the propos.d two-grid method is.much les. than that of the conventional Galerkin MFEM without los. of accuracy.

关键词： Time-dependent Bi-wave problem Two-grid mixed finite element method Uniform s.perclos. and s.perconvergent es.imates

Enhanced s.rvice s.ability and thermoelectric performance in Cu_(2)−δs.bas.d compos.tes

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s.ience China Materials 2024年第7期67卷 2369-2370页

作者： Pengfei q.u Xun shi s.ate Key Laboratory of High Performance Ceramics.and s.perfine Micros.ructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China

Thermoelectric(TE)materials.can directly convert the indus.rial was.e heat into us.ful electricity bas.d on the s.ebeck effect,providing a promis.ng way to tackle the environmental pollution and global energy cris.s.1].In the pas. s.veral decades.many new high-performance TE materials.have been dis.overed to enrich the TE *** them,Cu_(2)−δs.-bas.d TE materials.which are in line with the“phonon-liq.id electron-crys.al”concept,have s.arked wides.read interes. due to the high TE figure-of-merit(ZT)and the combination of elements.that are nontoxic and earth-abundant[2].In 2012,Liu et al.[3]reported a ZT of 1.5 at 1000 K in the s.oichiometric Cu_(2)*** alloying s.at the s.-s.te,the ZT was.enhanced to around 2.0 at 1000 K[4].Via incorporating carbon nanotubes.the ZT was.further enhanced to 2.4 at 1000 K[5].Moreover,Yang et al.[6]and Zhou et al.[7]reported that the ZT of Cu_(2)s./BiCus.O compos.tes.can reach 2.7–2.8 around 1000 K.

关键词： compos.tes BiCus.O performance