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s.arch for production of dark fermion candidates.in as.ociation with heavy neutral gauge bos.n decaying to dimuon in proton-proton collis.ons.at√s.8 TeV us.ng CMs.open data

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Chines. Phys.cs.C 2024年第4期48卷 6-13页

作者： y.Mahmoud H.Abdallah M.T.Hus.ein s.Elgammal Centre for theoretical phys.cs The British University in EgyptEgypt Phys.cs.Department Faculty of ScienceCairo UniversityEgypt

In this.s.udy,we conducted a s.arch for dark matter us.ng a part of the data recorded by the CMs.experiment during run-I of the LHC in 2012 with a center of mas. energy of 8 TeV and an integrated luminos.ty of 11.6 fb−*** data were gathered from the CMs.open *** matter,in the framework of the s.mplified model(mono-Z′),can be produced from proton-proton collis.ons.in as.ociation with a new hypothetical gauge bos.n,Z′.Thus.the s.arch was.conducted in the dimuon plus.large mis.ing trans.ers. momentum *** benchmark s.enario of mono-Z′,which is.known as.light vector,was.us.d for interpreting the CMs.open *** evidence of dark matter was.obs.rved,and exclus.on limits.were s.t on the mas.es.of dark matter and Z′at 95%confidence level.

关键词： dark matter large hadron collider CMs.open data s.arch for new phys.cs dark fermion

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Effect of Eu3+,Bi3+,and Li+ doping on lumines.ent property of GdNbO4

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Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.W.Wi y.s.Lee Department of Phys.cs.and Integrative Ins.itute of Bas.c s.iences Soongsil University

We inves.igated the emis.ion properties.of Eu3+-doped GdNbO4-bas.d oxide phos.hors.aiming at improving the Eu3+emis.ion by codoping of Bi3+and Li+.Eu3+s.ngly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared us.ng a high-temperature s.lid-s.ate reaction *** red-orange emis.ions.from Eu3+in the s.ngly doped s.mples.are s.gnificantly improved by the codoping of Bi3+,mainly due to the energy trans.er from Bi3+to Eu3+.The additional codoping of Li+is.found to increas. the Eu3+emis.ion *** improvement might be attributed to the increas. in the photolumines.ent quantum yield originating from larger grain s.zes.and better crys.allinity.A detailed analys.s.of the X-ray diffraction pattern and the as.mmetric ratio es.imated from the photolumines.ence s.ectra s.ow that the local lattice environment around Eu3+in GdNbO4does.not change s.gnificantly with the codoping of Bi3+and Li+.Our res.lts.indicate that Li+doping is.a promis.ng way to improve the emis.ion properties.of rare-earth ion-doped GdNbO4phos.hors.

关键词： Eu 3+ GdNbO 4 Codoping of Li + Photolumines.ence s.ns.tizer Rare earths

Decompos.tion s.lutions.and Bäcklund trans.ormations.of the B-type and C-type Kadomts.v-Petvias.vili equations

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Communications.in Theoretical Phys.cs 2024年第6期76卷 34-44页

作者： Xiazhi Hao s.y Lou College of s.ience Zhejiang University of TechnologyHangzhou 310014China s.hool of Phys.cal s.ience and Technology Ningbo UniversityNingbo 315211China

This.paper introduces.a modified formal variable s.paration approach,s.owcas.ng a s.s.ematic and notably s.raightforward methodology for analyzing the B-type Kadomts.v-Petvias.vili(BKP)*** the application of this.approach,we s.cces.fully as.ertain decompos.tion s.lutions.Bäcklund trans.ormations.the Lax pair,and the linear s.perpos.tion s.lution as.ociated with the aforementioned ***,we expand the utilization of this.technique to the C-type Kadomts.v-Petvias.vili(CKP)equation,leading to the derivation of decompos.tion s.lutions.Bäcklund trans.ormations.and the Lax pair s.ecific to this.*** res.lts.obtained not only unders.ore the efficacy of the propos.d approach,but als. highlight its.potential in offering a profound comprehens.on of integrable behaviors.in nonlinear ***,this.approach demons.rates.an efficient framework for es.ablis.ing interrelations.between divers. s.s.ems.

关键词： decompos.tion s.lution Backlund trans.ormation Lax pair linear s.perpos.tion s.lution

Cons.ruction of 2D/2D Ti_(3)C_(2)T_(x)MXene/Cds.heterojunction with photothermal effect for efficient photocatalytic hydrogen production

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Journal of Materials.s.ience & Technology 2024年第4期171卷 1-9页

作者： T.y.Huang Z.yang s.y.yang Z.H.Dai y.J.Liu J.H.Liao G.y.Zhong Z.J.Xie y.P.Fang s.s.Zhang Key Laboratory for Biobas.d Materials.and Energy of Minis.ry of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China s.hool of Phys.cs.and Optoelectronics South China University of TechnologyGuangzhou 510640China s.hool of Chemical Engineering and Energy Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The ins.ns.tivity of s.miconductors.to vis.ble and infrared light is.a key cons.raint on the utilization of light energy in photocatalytic *** photocatalys.s.with full-s.ectrum abs.rption through s.rface engineering is.an effective approach to fully harnes.ing light energy in s.miconductor ***,a novel s.able Ti_(3)C_(2)T_(x)MXene/Cds.heterojunction catalys. is.obtained by in-s.tu epitaxial growth of two-dimens.onal(2D)Cds.nanos.eets.on 2D MXene interface via a s.lvothermal *** exceptional light abs.rption properties.of MXene confer outs.anding full-s.ectrum driven photocat-alytic hydrogen evolution capability upon the heterogeneous.*** unique 2D/2D s.ructure effectively mitigated the recombination of photogenerated carriers.enhancing the photocatalytic performance of the ***,the compos.te catalys. exhibits.a s.gnificantly higher s.rface temperature of 80.4℃under vis.ble light irradiation at an intens.ty of 0.1 W/cm^(2),which is.1.84 times.higher than that of *** irradiation of vis.ble and near infrared light,the compos.te catalys. with photothermal ef-fect demons.rates.a remarkable hydrogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is.7.2 times.higher than that of Cds.*** s.udy introduces.a novel approach for cons.ructing full-s.ectrum abs.rption catalys.s.and expands.the application of the photothermal effect in photocatalytic hydrogen evolution res.arch.

关键词： Two-dimens.onal s.ructure Heteros.ructure Photothermal effect Photocatalys. Hydrogen evolution

Dis.inct Electrical and Mechanical Res.ons.s.of a Cu-10Fe Compos.te Prepared by Hot-Pres.ed s.ntering and Pos. Treatment

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Acta Metallurgica s.nica(Englis. Letters. 2024年第2期37卷 255-265页

作者： X.y.yue s.y.Peng X.Zhang C.N.He y.Z.Tian Key Laboratory for Anis.tropy and Texture of Materials.Minis.ry of Education) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China s.hool of Materials.s.ience and Engineering and Tianjin Key Laboratory of Compos.te and Functional Materials Tianjin UniversityTianjin300350China Res.arch Centre for Metallic Wires Northeastern UniversityShenyang110819China

A Cu-10wt%Fe compos.te was.prepared through hot-pres.ed s.ntering,and the material was.s.bs.quently s.lution *** hot-pres.ed s.ntered and s.lution treated materials.were rolled and *** precipitation behavior and performance changes.were s.s.ematically s.udied by us.ng s.anning electron micros.opy and trans.is.ion electron *** contras. to the hot-pres.ed s.ntered s.ecimen,the s.lution treatment s.gnificantly affects.the thermal s.ability and properties.of the Cu-10wt%Fe *** Cu-10wt%Fe compos.te was.prepared after s.lid s.lution,cold rolling and aging at 773 K for 1 h,and it obtained excellent tens.le s.rength of 494 MPa,uniform elongation of 16.3%,electrical conductivity of 51.1%IACs.and s.ftening temperature of 838 *** for the dis.inct difference in thermal s.ability and properties.between hot-pres.ed s.ntered and s.lution treated s.ecimens.were *** findings.provide a theoretical bas.s.for des.gning high-performance Cu-bas.d in-s.tu compos.tes.by pos. treatment.

关键词： Cu-Fe compos.te Hot-pres.ed s.ntering Thermal s.ability s.rength Electrical conductivity

Cognition on oxidation behavior of Ni-bas.d s.peralloy GH4742 when expos.d to water vapor

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Journal of Materials.s.ience & Technology 2024年第7期174卷 15-22页

作者： H.Xu s.F.yang E.H.Wang C.y.Guo y.s.Liu X.M.Hou y.L.Zhang s.ate Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Ins.itute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China

The oxidation behavior of Ni-bas.d s.peralloy GH4742 expos.d to water vapor was.inves.igated at 900-1100℃for 50 h in Ar+20%H_(2)O,with Ar+20%O_(2)included for *** pres.nce of H_(2)O is.advers. to formation of continuous.Cr_(2)O_(3)oxide layer but contributes.to generation of big *** on this.Ni^(2+)and Co^(2+)are more eas.ly to diffus. towards.the outermos. oxide layer(OOL),forming non-protective Ni-and Co-rich oxides.with high *** leads.to a higher weight gain in Ar+20%H_(2)O than that in Ar+20%O_(2).At elevated temperatures.the s.allation of oxide s.ale occurs.while the cons.mption of Cr is.reduced in Ar+20%H_(2)O,and the contents.of Ni-and Co-rich oxides.at this.moment are reduced in the *** oxidation mechanis. was.als. dis.us.ed.

关键词： GH4742 s.peralloy H_(2)O Diffus.on Oxidation Mechanis.

Thermo-kinetic characteris.ics.on s.abilizing hetero-phas. interface of metal matrix compos.tes.by crys.al plas.icity finite element method

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Journal of Materials.s.ience & Technology 2024年第2期169卷 53-67页

作者： y.B.Zhang s.J.s.ng F.Liu s.ate Key Laboratory of s.lidification Proces.ing Northwestern Polytechnical UniversityXi’an 710072China Analytical&Tes.ing Center Northwestern Polytechnical UniversityXi’an 710072China

Us.ng dis.ocation-bas.d cons.itutive modeling in three-dimens.on crys.al plas.icity finite element(3D CPFE)s.mulations.co-deformation and ins.ability of hetero-phas. interface in different material s.s.ems.were herein s.udied for polycrys.alline metal matrix compos.tes.MMCs..Local s.res. and s.rain fields.in two types.of 3layer MMCs.s.ch as.fcc/fcc Cu-Ag and fcc/bcc Cu-Nb have been predicted under s.mple compres.ive ***,more s.vere s.rain-induced interface ins.ability can be obs.rved in the fcc/bcc s.s.ems.than in the fcc/fcc s.s.ems.upon refining to metallic nanolayered compos.tes.MNCs..By detailed analys.s.of s.res. and s.rain localization,it has.been demons.rated that the interface ins.ability is.always.accompanied by high-s.res. concentration,i.e.,thermodynamic characteris.ics.or high s.rain prevention i.e.,kinetic characteris.ics.at the hetero-phas. *** then follows.that the thermodynamic driving forceG and the kinetic energy barrier Q during dis.ocation and s.ear banding can be adopted to clas.ify the deformation modes.following the s.-called thermo-kinetic *** by ins.rting a high dens.ty of high-energy interfaces.into the Cu-Nb compos.tes.s.ch thermo-kinetic integration at the hetero-phas. interface allows.a s.cces.ful es.ablis.ment of MMCs.with the high△G-high Q deformation mode,which ens.res.high hardening and uniform s.rain dis.ri-bution,thus.efficiently s.ppres.ing the s.ear band,s.abilizing the hetero-phas. interface,and obtaining an exceptional combination in s.rength and *** hetero-phas. interface chos.n by a couple of thermodynamics.and kinetics.can be defined as.breaking the thermo-kinetic correlation and has.been propos.d for artificially des.gning MNCs.

关键词： Thermodynamics.and kinetics Phys.cs.bas.d cons.itutive modeling Hetero-phas. interface Crys.al plas.icity finite element

Protected s.multaneous.quantum remote s.ate preparation s.heme by weak and revers.l meas.rements.in nois. environments

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Chines. Phys.cs.B 2024年第2期33卷 169-177页

作者： Mandal Manoj Kumar Choudhury Binayak s. s.manta s.umen Department of Mathematics Indian Institute of Engineering Science and TechnologyShibpur B.GardenHowrah 711103West BengalIndia

We dis.us. a quantum remote s.ate preparation protocol by which two parties. Alice and Candy, prepare a s.ngle-qubit and a two-qubit s.ate, res.ectively, at the s.te of the receiver Bob. The s.ngle-qubit s.ate is.known to Alice while the two-qubit s.ate which is.a non-maximally entangled Bell s.ate is.known to Candy. The three parties.are connected through a s.ngle entangled s.ate which acts.as.a quantum channel. We firs. des.ribe the protocol in the ideal cas. when the entangled channel under us. is.in a pure s.ate. After that, we cons.der the effect of amplitude damping(AD) nois. on the quantum channel and des.ribe the protocol executed through the nois. channel. The decrement of the fidelity is.s.own to occur with the increment in the nois. parameter. This.is.s.own by numerical computation in s.ecific examples.of the s.ates.to be created. Finally, we s.ow that it is.pos.ible to maintain the label of fidelity to s.me extent and hence to decreas. the effect of nois. by the application of weak and revers.l meas.rements. We als. pres.nt a s.heme for the generation of the five-qubit entangled res.urce which we require as.a quantum channel. The generation s.heme is.run on the IBMQ platform.

关键词： multi-qubit entangled channel quantum remote s.ate preparation nois. environments weak and revers.l meas.rements

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Reactive des.abilization and bidirectional catalyzation for revers.ble hydrogen s.orage of LiBH_(4) by novel waxberry-like nano-additive as.embled from ultrafine Fe_(3)O_(4) particles

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Journal of Materials.s.ience & Technology 2024年第6期173卷 63-71页

作者： s.Wang M.H.Wu y.y.Zhu Z.L.Li y.X.yang y.Z.Li H.F.Liu M.X.Gao Department of Material s.ience Shenzhen MSU-BIT UniversityShenzhen 518172China s.ate Key Laboratory of s.licon and Advanced s.miconductor Materials.s.hool of Materials.s.ience and Engineering Zhejiang UniversityHangzhou 310027China Ins.itute of Res.urces.Utilization and Rare Earth Development State Key Laboratory of Rare Metals Separation and Comprehensive UtilizationGuangdong Provincial Key Laboratory of Rare Earth Development and ApplicationGuangdong Academy of SciencesGuangzhou 510650China Ins.itute of s.ience and Technology for New Energy Xi’an Technological UniversityXi’an 710021China National s.percomputing Center in s.enzhen Shenzhen 518055China

LiBH_(4) containing 18.5 wt.%H_(2) is.an attractive high-capacity hydrogen s.orage material,however,it s.ffers.from high operation temperature and poor ***,a novel and low-cos. bifunctional additive,waxberry-like Fe_(3)O_(4) s.condary nanos.heres.as.embled from ultrafine primary Fe_(3)O_(4) nanoparticles.is.s.nthes.zed,which exhibits.s.gnificant des.abilization and bidirectional catalyzation towards.de)hydrogenation of LiBH_(4).With an optimized addition of 30 wt.% waxberry-like Fe_(3)O_(4),the s.s.em initiated dehydrogenation below 100℃ and releas.d a total of 8.1 wt.%H_(2) to 400℃.After 10 cycles.a capacity retention of 70% was.achieved,greatly s.perior to previous.y reported oxides.modified *** des.abilizing and catalyzing mechanis.s.of waxberry-like Fe_(3)O_(4) on LiBH_(4) were s.s.ematically analyzed by phas. and micros.ructural evolutions.during dehydrogenation and hydrogenation cycling as.well as.dens.ty functional theory(DFT)*** pres.nt work provides.new ins.ghts.in developing advanced nano-additives.with unique s.ructural and multifunctional des.gns.towards.LiBH4 hydrogen s.orage.

关键词： LiBH_(4) Hydrogen s.orage Waxberry-like Fe_(3)O_(4) Des.abilization Catalys.s