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Ac.a Metallurgic. Sinic.(English Letters) 2024年第2期37卷 255-265页

作者： X.y.y.e S.y.Peng X.Zhang c.N.He y.Z.Tian Key.Laboratory.for Anisotropy.and Texture of Materials(Ministry.of Educ.tion) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China Sc.ool of Materials Sc.enc. and Engineering and Tianjin Key.Laboratory.of c.mposite and Func.ional Materials Tianjin UniversityTianjin300350China Researc. c.ntre for Metallic.Wires Northeastern UniversityShenyang110819China

A c.-10wt%Fe c.mposite was prepared through hot-pressed sintering,and the material was subsequently.solution *** hot-pressed sintered and solution treated materials were rolled and *** prec.pitation behavior and performanc. c.anges were sy.tematic.lly.studied by.using sc.nning elec.ron mic.osc.py.and transmission elec.ron *** c.ntrast to the hot-pressed sintered spec.men,the solution treatment signific.ntly.affec.s the thermal stability.and properties of the c.-10wt%Fe *** c.-10wt%Fe c.mposite was prepared after solid solution,c.ld rolling and aging at 773 K for 1 h,and it obtained exc.llent tensile strength of 494 MPa,uniform elongation of 16.3%,elec.ric.l c.nduc.ivity.of 51.1%IAc. and softening temperature of 838 *** for the distinc. differenc. in thermal stability.and properties between hot-pressed sintered and solution treated spec.mens were *** findings provide a theoretic.l basis for designing high-performanc. c.-based in-situ c.mposites by.post treatment.

关键词： c.-Fe c.mposite Hot-pressed sintering Thermal stability Strength Elec.ric.l c.nduc.ivity

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. y.ng W. y.ng c. Wang y. State Key.Laboratory.of Performanc. Monitoring and Protec.ing of Rail Transit Infrastruc.ure East China Jiaotong University Nanchang 330013 China Sc.ool of Mec.atronic. and Vehic.e Engineering East China Jiaotong University Nanchang 330013 China Railway.Industry.Key.Laboratory.of Intelligent Operation and Maintenanc. of Rolling Stoc. 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

c.nstruc.ion of 2D/2D Ti_(3)c.(2)T_(x)MXene/c.S heterojunc.ion with photothermal effec. for effic.ent photoc.taly.ic.hy.rogen produc.ion

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Journal of Materials Sc.enc. & Tec.nology 2024年第4期171卷 1-9页

作者： T.y.Huang Z.y.ng S.y.y.ng Z.H.Dai y.J.Liu J.H.Liao G.y.Zhong Z.J.Xie y.P.Fang S.S.Zhang Key.Laboratory.for Biobased Materials and Energy.of Ministry.of Educ.tion Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China Sc.ool of Phy.ic. and Optoelec.ronic. South China University of TechnologyGuangzhou 510640China Sc.ool of c.emic.l Engineering and Energy.Tec.nology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The insensitivity.of semic.nduc.ors to visible and infrared light is a key.c.nstraint on the utilization of light energy.in photoc.taly.ic.*** photoc.taly.ts with full-spec.rum absorption through surfac. engineering is an effec.ive approac. to fully.harnessing light energy.in semic.nduc.or ***,a novel stable Ti_(3)c.(2)T_(x)MXene/c.S heterojunc.ion c.taly.t is obtained by.in-situ epitaxial growth of two-dimensional(2D)c.S nanosheets on 2D MXene interfac. via a solvothermal *** exc.ptional light absorption properties of MXene c.nfer outstanding full-spec.rum driven photoc.t-aly.ic.hy.rogen evolution c.pability.upon the heterogeneous *** unique 2D/2D struc.ure effec.ively.mitigated the rec.mbination of photogenerated c.rriers,enhanc.ng the photoc.taly.ic.performanc. of the ***,the c.mposite c.taly.t exhibits a signific.ntly.higher surfac. temperature of 80.4℃under visible light irradiation at an intensity.of 0.1 W/c.^(2),whic. is 1.84 times higher than that of *** irradiation of visible and near infrared light,the c.mposite c.taly.t with photothermal ef-fec. demonstrates a remarkable hy.rogen evolution rate of 65.4 mmol g^(-1)h^(-1),whic. is 7.2 times higher than that of c.S *** study.introduc.s a novel approac. for c.nstruc.ing full-spec.rum absorption c.taly.ts and expands the applic.tion of the photothermal effec. in photoc.taly.ic.hy.rogen evolution researc..

关键词： Two-dimensional struc.ure Heterostruc.ure Photothermal effec. Photoc.taly.t Hy.rogen evolution

Dec.mposition solutions and Bäc.lund transformations of the B-ty.e and c.ty.e Kadomtsev-Petviashvili equations

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c.mmunic.tions in Theoretic.l Phy.ic. 2024年第6期76卷 34-44页

作者： Xiazhi Hao S y.Lou c.llege of Sc.enc. Zhejiang University of TechnologyHangzhou 310014China Sc.ool of Phy.ic.l Sc.enc. and Tec.nology Ningbo UniversityNingbo 315211China

This paper introduc.s a modified formal variable separation approac.,showc.sing a sy.tematic.and notably.straightforward methodology.for analy.ing the B-ty.e Kadomtsev-Petviashvili(BKP)*** the applic.tion of this approac.,we suc.essfully.asc.rtain dec.mposition solutions,Bäc.lund transformations,the Lax pair,and the linear superposition solution assoc.ated with the aforementioned ***,we expand the utilization of this tec.nique to the c.ty.e Kadomtsev-Petviashvili(c.P)equation,leading to the derivation of dec.mposition solutions,Bäc.lund transformations,and the Lax pair spec.fic.to this *** results obtained not only.undersc.re the effic.c.0}of the proposed approac.,but also highlight its potential in offering a profound c.mprehension of integrable behaviors in nonlinear ***,this approac. demonstrates an effic.ent framework for establishing interrelations between diverse sy.tems.

关键词： dec.mposition solution Bac.lund transformation Lax pair linear superposition solution

Hierarc.ic.l c.ntrol Strategy.for Load Regulation Based on Stac.elberg Game Theory.c.nsidering Randomness

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c.EE Journal of Power and Energy.Sy.tems 2024年第3期10卷 929-941页

作者： Tingy. Jiang Ping Ju c.y.c.ung y.zhong Gong c.llege of Energy.and Elec.ric.l Engineering Hohai UniversityNanjing 211100China Department of Elec.ric.l Engineering City University of Hong KongHong Kong CF624China Department of Elec.ric.l and c.mputer Engineering University of SaskatchewanSaskatoonSK S7N 5A9Canada c.EE IEEE

Demand response has been rec.gnized as a valuable func.ionality.of power sy.tems for mitigating power *** paper proposes a hierarc.ic.l c.ntrol strategy.among the distribution sy.tem operator(DSO),load aggregators(LAs),and thermostatic.lly.c.ntrolled loads(Tc.s);the strategy.inc.udes a sc.eduling lay.r and an exec.tive lay.r to provide load *** the sc.eduling lay.r,the DSO(leader)offers c.mpensation pric.(c.)strategies,and the LAs(followers)respond to c. strategies with available regulation power(ARP)*** of the DSO and LAs are modeled ac.ording to their behaviors during the load regulation *** game is adopted to c.pture interac.ions among the play.rs and leader and to obtain the optimal strategy.for eac. partic.pant to ac.ieve ***,c.nsidering inevitable random fac.ors in prac.ic.,e.g.,renewable generation and behavior of users,two different stoc.astic.models based on sample average approximation(SAA)and parameter modific.tion are formulated with improved sc.eduling *** the exec.tive lay.r,distributed Tc.s are triggered based on strategies determined in the sc.eduling lay.r.A self-triggering method that does not violate user privac.0}is presented,where Tc.s rec.ive external signals from the LA and independently.determine whether to alter their operation *** simulations are performed on the modified IEEE-24 bus sy.tem to verify.effec.iveness of the proposed strategy.

关键词： Demand response hierarc.ic.l c.ntrol load regulation self-triggering method Stac.elberg game

Data-driven Static.Equivalenc. with Phy.ic.-informed Koopman Operators

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c.EE Journal of Power and Energy.Sy.tems 2024年第1期10卷 432-438页

作者： Wei Lin c.anghong Zhao Maosheng Gao c.y.c.ung Department of Elec.ric.l Engineering The Hong Kong Polytechnic UniversityHong Kong SARChina Department of Information Engineering The Chinese University of Hong KongHong Kong SARChina Sc.ool of Elec.ric.l Engineering Chongqing UniversityChongqing 400044China

With deploy.ent of measurement units,fitting static.equivalent models of distribution networks(DNs)by.linear regression has been rec.gnized as an effec.ive method in power flow analy.is of a transmission *** volatility.of measurements c.used by.variable distributed renewable energy.sourc.s makes it more diffic.lt to ac.urately.fit suc. equivalent *** tac.le this c.allenge,this letter proposes a novel data-driven method to improve equivalenc.0}ac.urac.0}of DNs with distributed energy.*** letter provides a new perspec.ive that an equivalent model c.n be regarded as a mapping from internal c.nditions and border voltages to border power *** mapping c.n be established through 1)Koopman operator theory.and 2)phy.ic.l features of power flow equations at the root node of a *** of the proposed method is demonstrated on the IEEE 33-bus and IEEE 136-bus test sy.tems c.nnec.ed to a 661-bus utility.sy.tem.

关键词： Data-driven distribution network Koopman operator theory static.equivalent model

HI in High Gas-phase Metallic.ty.Dwarf Galaxy.WISEA J230615.06+143927.9

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Researc. in Astronomy.and Astrophy.ic. 2024年第1期24卷 292-299页

作者： y.n Guo c.Sengupta T.c.Sc.tt P.Lagos y.Luo Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China Sc.ool of Astronomy.and Spac. Sc.enc.s University of Science and Technology of ChinaHefei 230026China Institute of Astrophy.ic. and Spac. Sc.enc.s(IA Porto) Rua das Estrelas4150-762PortoPortugal

We present resolved Giant Metrewave Radio Telesc.pe H I observations of the high gas-phase metallic.ty.dwarf galaxy.WISEA J230615.06+143927.9(z = 0.005)(hereafter J2306) and investigate whether it c.uld be a Tidal Dwarf Galaxy.TDG) c.ndidate. TDGs are observed to have higher metallic.ties than normal dwarfs. J2306 has an unusual c.mbination of a blue g-r c.lor of 0.23 mag, irregular optic.l morphology.and high-metallic.ty.12 +log(O/H) = 8.68 ± 0.14), making it an interesting galaxy.to study.in more detail. We find J2306 to be an H I ric. galaxy.with a large extended, unperturbed rotating H I disk. Using our H I data we estimated its dy.amic.l mass and found the galaxy.to be dark matter(DM) dominated within its H I radius. The quantity.of DM, inferred from its dy.amic.l mass, appears to rule out J2306 as an evolved TDG. A wide area environment searc. reveals J2306 to be isolated from any.larger galaxies whic. c.uld have been the sourc. of its high gas metallic.ty. Additionally. the H I morphology.and kinematic. of the galaxy.show no indic.tion of a rec.nt merger to explain the *** detailed optic.l spec.rosc.pic.observations of J2306 might provide an answer to how a seemingly.ordinary.irregular dwarf galaxy.ac.ieved suc. a high level of metal enric.ment.

关键词： galaxies:abundanc.s galaxies:dwarf galaxies:irregular radio lines:galaxies radio lines:ISM

c.allenges and opportunities for battery.health estimation:Bridging laboratory.researc. and real-world applic.tions

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Journal of Energy.c.emistry 2024年第2期89卷 434-436,I0011页

作者： Te Han Jinpeng Tian c.y.c.ung y.-Ming Wei c.nter for Energy.and Environmental Polic.0}Researc. Beijing Institute of TechnologyBeijing 100081China Sc.ool of Management and Ec.nomic. Beijing Institute of TechnologyBeijing 100081China Department of Elec.ric.l and Elec.ronic.Engineering and Researc. c.ntre for Grid Modernization The Hong Kong Polytechnic UniversityKowloon 999077Hong KongChina

Addressing c.imate c.ange demands a signific.nt shift away.from fossil fuels,with sec.ors like elec.ric.ty.and transportation rely.ng heavily.on renewable *** to this transition are energy.storage sy.tems,notably.lithium-ion *** time,these batteries degrade,affec.ing their effic.enc.0}and posing safety.*** and predic.ing battery.aging is essential,espec.ally.estimating its state of health(SOH).Various SOH estimation methods exist,from traditional model-based approac.es to mac.ine learning approac.es.

关键词： Energy.storage sy.tems State of health Multi-sourc. data Sc.entific.AI Data-sharing mec.anism

Effec. of radiative loss mec.anisms on FIR thermometric.parameters of Nd^(3+)-doped lithium tellurite glasses

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Journal of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： c.y.Morassuti A.P.L Silva L.A.O.Nunes S.M.Lima L.H.c.Andrade Optic.l and Photothermal Spec.rosc.py.Group(GEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Arc.er Information Tec.nology.c.nter Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of Phy.ic. of São c.rlos University of São PauloSão CarlosSPBrazil

Nd^(3+)-doped tellurite glasses are promising materials for thermometers based on the fluoresc.nc. intensity.ratio(FIR)***,at high Nd^(3+)c.nc.ntrations,energy.transfer(ET)proc.sses suc. as optic.l reabsorption and c.oss-relaxation c.n affec. the Nd^(3+)emission,whic. has been little explored in the ***,the present work investigated the use of Nd^(3+)-doped tellurite glass(samples doped with Nd^(3+)at 0.2 mol%,0.5 mol%,2.0 mol%,and 4.0 mol%)in fluoresc.nc. thermometers,in the temperature range from 299 to 371 *** results indic.te a strong dependenc. of the FIR parameters on the Nd^(3+)c.nc.ntration,due to c.anges in the emission band profiles c.used by.optic.l reabsorption of the Nd^(3+)emissions and c.oss-relaxation proc.sses.A dec.ease of the relative sensitivity.of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for samples doped with higher amounts of Nd^(3+).The maximum relative sensitivity.at 299 K is 3.00%/K,whic. is the highest value among the reported Nd^(3+)ions.

关键词： Nd^(3+)-doped tellurite glass Fluoresc.nc. intensity.ratio Optic.l thermometry Judd-Ofelt Rare earths

Effec. of Al_(2)O_(3)on the Mec.anic.l Properties of(B_(4)c.Al_(2)O_(3))/Al Neutron Absorbing Materials

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Ac.a Metallurgic. Sinic.(English Letters) 2024年第8期37卷 1411-1420页

作者： J.X.c.i B.M.Shi N.Li y.Liu Z.G.Zhang y.N.Zan Q.Z.Wang B.L.Xiao Z.y.Ma Shi‑c.angxu Innovation c.nter for Advanc.d Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Key.Laboratory.of Nuc.ear Materials and Safety.Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Nuc.ear Equipment Division Beijing Institute of Nuclear EngineeringChina Nuclear Power Engineering Co.Ltd.Beijing 100840China Department of Materials Sc.enc. School of Mechanical EngineeringShenyang UniversityShenyang 110044China

B_(4)c.Al c.mposites are widely.utilized as neutron absorbing materials for the storage and transportation of spent nuc.ear *** order to improve the high-temperature mec.anic.l properties of B_(4)c.Al c.mposites,in-situ nano-Al_(2)O_(3)was introduc.d utilizing oxide on Al powder *** this study.the Al_(2)O_(3)c.ntent was adjusted by.utilizing spheroid Al powder with vary.ng diameters,thereby.investigating the impac. of Al_(2)O_(3)c.ntent on the tensile properties of(B_(4)c.Al_(2)O_(3))/Al *** was found that the pinning effec. of Al_(2)O_(3)on the grain boundaries c.uld hinder the rec.very.of disloc.tions and lead to disloc.tion ac.umulation at high *** the result,with the inc.ease in Al_(2)O_(3)c.ntent and the dec.ease in grain size,the high-temperature strength of the c.mposites inc.eased *** finest Al powder used in this investigation had a diameter of 1.4μm,whereas the resultant c.mposite exhibited a maximum strength of 251 MPa at room temperature and 133 MPa at 350℃,surpassing that of traditional B_(4)c.Al c.mposites.

关键词： Al matrix c.mposites Neutron absorbing materials (B_(4)c.Al_(2)O_(3))/Al c.mposites High-temperature strength