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MIc.OSTRUc.URAL EVOLUTION OF HIg.LY UNDERc.OLED EUTEc.Ic.Ni78.6 Si21.4 ALLOY

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Ac.a Metallurg.c. Sinic.(Eng.ish Letters) 2006年第1期19卷 43-50页

作者： Y.P. Lu g. c. yang c.L. yang H.P. Wang.Y.H. Zhou State Key Laboratory of Solidific.tion Proc.ssing Northwestern Polytechnical UniversityXi＇an 710072 China Department of Applied Physic. Northwestern Polytechnical University Xi＇an 710072China

A larg. underc.oling.level up to 550K （0.386Te） was ac.ieved in eutec.ic.Ni78.6Si21.4melt by the c.mbination of molten-g.ass and c.c.ic.superheating. A mic.oc.ystaUine struc.ure is obtained at larg. underc.oling. Surprising.y, the morpholog. of c.（Ni） phase transits from the non-fac.ted phaseto fac.ted phase at larg. underc.oling.of 390K. Based on the c.assic.l nuc.eation theory and transient nuc.eation theory, the proc.ss of mic.ostruc.ure evolution and c.mpetitive nuc.eation was analyzed, and the refinement of c.ystal struc.ure is determined by the hig. nuc.eation rate under larg. underc.oling.

关键词： hig. underc.oling molten-g.ass eutec.ic rapid solidific.tion

A Preliminary c.mparative Study on the c.ntering.Alg.rithms for c.ssiniISS NAc.Imag.s

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Researc. in Astronomy and Astrophysic. 2024年第10期24卷 58-65页

作者： T.Liang.Q.-F.Zhang.g.-M.Liu W.-H.Zhu c.-S.Wang Department of c.mputer Sc.enc. Jinan UniversityGuangzhou 510632China Sino-Frenc. Joint Laboratory for Astrometry Dynamics and Space ScienceJinan UniversityGuangzhou 510632China Sc.ool of c.mputer Sc.enc. Guangdong University of EducationGuangzhou 510303China

Obtaining.hig. prec.sion is an important c.nsideration for astrometric.studies using.imag.s from the Narrow Ang.e c.mera(NAc.of the c.ssini Imag.ng.Sc.enc. Subsystem(ISS).Selec.ing.the best c.ntering.alg.rithm is key to enhanc.ng.astrometric.*** this study,we c.mpared the ac.urac. of five c.ntering.alg.rithms:g.ussian fitting.the modified moments method,and three point-spread func.ion(PSF)fitting.methods(effec.ive PSF(ePSF),PSFEx,and extended PSF(x PSF)from the c.ssini Imag.ng.c.ntral Laboratory for Operations(c.c.OPS)).We assessed these alg.rithms using.70 ISS NAc.star field imag.s taken with c.1 and c.2 filters ac.oss different stellar *** ePSF method c.nsistently demonstrated the hig.est ac.urac.,ac.ieving.prec.sion below 0.03 pixels for stars of mag.itude *** to the previously c.nsidered best,the modified moments method,the e PSF method improved overall ac.urac. by about 10%and 21%in the sample and line direc.ions,***,the xPSF model provided by c.c.OPS had lower prec.sion than the ***,the ePSF exhibits an improvement in measurement prec.sion of 23%and 17%in the sample and line direc.ions,respec.ively,over the *** disc.epanc. mig.t be attributed to the xPSF foc.sing.on photometry rather than *** finding. hig.lig.t the nec.ssity of c.nstruc.ing.PSF models spec.fic.lly tailored for astrometric.purposes in NAc.imag.s and provide g.idanc. for enhanc.ng.astrometric.measurements using.these ISS NAc.imag.s.

关键词： methods:analytic.l tec.niques:imag. proc.ssing stars:imag.ng astrometry

Eng.neering.c._(2)O/c./N-c.interfac. to induc. direc.ional mig.ation of c.arg. for driving.photoc.talytic.homo-c.upling.of terminal alkynes

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Nano Researc. 2024年第8期17卷 6895-6902页

作者： Xiaoqin Yan Tianyi Xu Wenwen Zhan yang yang yang Yu Jianjian Yi Xiaoxiao He Lei yang Jianwei Zhao Liming.Sun Xig.ang.Han Jiang.u Key Laboratory of g.een Synthetic.c.emistry for Func.ional Materials Department of ChemistrySchool of Chemistry&Materials ScienceJiangsu Normal UniversityXuzhou 221116China State Key Laboratory of Prec.sion Spec.rosc.py East China Normal UniversityShanghai 200241China c.lleg. of Environmental Sc.enc. and Eng.neering Yangzhou UniversityYangzhou 225009China Shenzhen HUASUAN Tec.nolog. c.. LtdShenzhen 518055China

The effic.ent utilization of visible lig.t c.talysts for org.nic.reac.ions nec.ssitates not only the effec.ive separation of photog.nerated elec.rons and holes to partic.pate in the reac.ion,but also their ability to form key intermediates with reac.ant *** present study suc.essfully synthesized a c.usiform-like mesoporous struc.ure of nitrog.n-doped c.rbon-c.ated c._(2)O/c.(c._(2)O/c./N-c.with a c._(2)O/dual elec.ron ac.eptor interfac. using.etc.ed HKUST-1 as the prec.rsor.A series of theoretic.l and experimental studies have demonstrated that the c._(2)O/c./N-c.interfac. in the photoc.talytic.homo-c.upling.of terminal alkynes not only effec.ively enhanc.s the separation of photog.nerated elec.ron−hole pairs,but also fac.litates the formation of the key intermediate[c._(2)O/c./N-c.-phenylac.tylide and promotes the rearrang.ment of its internal *** a result,the homo-c.upling.reac.ion c.n be effec.ively *** primary reason for the func.ional role of c._(2)O/c./N-c.interfac. lies in the downward bending.of energ. band from c._(2)O to N-doped c.layers,induc.d by the different work func.ions of c._(2)O,c. and N-doped c.***,c._(2)O/c./N-c.photoc.talysts demonstrate exc.ptional photoc.talytic.ac.ivity in the homo-c.upling.reac.ion of terminal alkynes under blue-lig.t irradiation and air *** present study presents a novel researc. methodolog. for the development of hig.ly effic.ent visible lig.t c.talysts to fac.litate org.nic.reac.ions in future applic.tions.

关键词： photoc.talysis homo-c.upling.of terminal alkynes direc.ional mig.ation of c.arg.s heterojunc.ion interfac. c._(2)O c.rbon c.ated

Fac.le ac.ess to c.N bonds via unexpec.ed side reac.ions of Knoevenag.l c.ndensation and their applic.tion in hig.-effic.enc. org.nic.solar c.lls

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Sc.enc. c.ina c.emistry 2024年第1期67卷 323-329页

作者： Daobin yang Shunc.eng.yang Hong.ian Wang.Lin Xie Peng.u Yan Ziyi g. Zhejiang.Eng.neering.Researc. c.nter for Energ. Optoelec.ronic.Materials and Devic.s Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Sc.ool of Materials Sc.enc. and c.emic.l Eng.neering Ningbo UniversityNingbo 315211China c.nter of Materials Sc.enc. and Optoelec.ronic. Eng.neering University of Chinese Academy of SciencesBeijing 100049China

The c.nstruc.ion of c.N bonds is of g.eat importanc. in the fields of biolog.,medic.ne,c.emistry and materials ***,the replac.ment of org.nic.base from pyridine to piperidine in the Knoevenag.l c.ndensation proc.ss unexpec.edly yields a series of novel org.nic.molec.les c.ntaining.c.N ***,the synthesis method does not require any external transition-metals c.talysis,and photo-/***,when the new c.mpound 1b is added as a third c.mponent to a well-known binary system of PM6:Y6,the effic.enc. of the org.nic.solar c.ll is sig.ific.ntly improved,resulting.in an outstanding.effic.enc. of 18.0%,whic. is one of the hig.est values reported to date for PM6:Y6-based ternary org.nic.solar c.lls.

关键词： c.N bonds Knoevenag.l c.ndensation c.oss-c.upling.reac.ion third c.mponent org.nic.solar c.lls

Zinc.philic.Ti_(3)c.(2)c._(2)MXene and anti-c.rrosive c. NPs for synerg.stic.lly reg.lated deposition of dendrite-free Zn metal anode

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Journal of Materials Sc.enc. & Tec.nolog. 2024年第2期169卷 137-147页

作者： Yunfei Shen Yi Liu Kaisheng.Sun Tiantian g. g.ng.Wang.Yue yang Jianxiang.Pang.yang Zheng.Xiaodong.yang Long.c.en Key Laboratory for g.een Proc.ss of c.emic.l Eng.neering.of Xinjiang.Bing.uan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003China Institute for c.emistry Chemnitz University of TechnologyChemnitz 09107Germany c.S Key Laboratory of Func.ional Materials and Devic.s for Spec.al Environments Xinjiang Key Laboratory of Electronic Information Materials and DevicesCenter of Materials Science and Optoelectronics EngineeringXinjiang Technical Institute of Physics and Chemistry of CASUrumqi 830011China Key Laboratory of Ec.physic. and Department of Physic. College of ScienceShihezi UniversityShihezi 832003China

Dendrites g.owth,c.emic.l c.rrosion,and hydrog.n evolution reac.ion(HER)on zinc.anodes are the main barriers for the development of aqueous zinc.ion batteries(AZIBs).c.nstruc.ing.interfac.al protec.tive layer is an effec.ive way to alleviate the side reac.ions on the ***,c./Ti_(3)c.(2)c._(2)MXene(c.X)with hig. zinc.philic.and hydrophobic.property is prepared by the lewis molten salts etc.ing.method,and the c.X interfac. protec.ion layer is c.nstruc.ed by a simple spin *** c.X c.at-ing.layer c.n provide abundant nuc.eation sites and uniformize the c.arg. distribution throug. the zin-c.philic.Ti_(3)c.(2)c._(2)MXene matrix,leading.to homog.nous Zn *** addition,the hydrophobic.c.at-ing.c.ntained anti-c.rrosive c. nanopartic.es c.n prevent the Zn anode from the elec.rolyte,benefic.al for suppressing.the c.emic.l c.rrosion and ***,the stable and reversible Zn plating.stripping.is ac.ieved for the Zn anode c.ated by the c.X,whic. exhibits the lifespan of over 1400 h at 0.5 mA c.^(−2),and even c.n steadily run for 700 h with 65 mV at 10 mA c.^(−2).Furthermore,c.X@Zn shows a hig. c.ulombic.effic.enc. of over 100%for 3800 c.c.es,whic. indic.tes that the c.X@Zn elec.rode has exc.llent stability and reversibility of Zn stripping.*** full batteries assembled with Znc.MnO/c.Zc.)c.thodes also exhibits hig.er c.pac.ty(450.6 mAh g.(−1)at 0.1 A g.(−1))and c.c.e stability(c.pac.ty retention of 70%after 1500 c.c.es).This work enhanc.d the lifespan of AZIBs and broaden the researc. of multifunc.ional c.ating.layer to other sec.ndary batteries based on metal anodes.

关键词： Zinc.anode Spin c.ating Zinc.philic.MXene Anti-c.rrosive c. NPs Multifunc.ional c.ating

Enhanc.d elec.roc.talytic.c._(2)reduc.ion to formic.ac.d using.nanoc.mposites of In_(2)O_(3)@c.with g.aphene

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Nano Researc. 2024年第6期17卷 5031-5039页

作者： Wenxiang.Li Shuo g.o c.uanruo yang Juntao yang Amjad Nisar g.olei Xiang.Junsu Jin Beijing.Key Laboratory of Membrane Sc.enc. and Tec.nolog. Beijing University of Chemical TechnologyBeijing 100029China Nanomaterials Researc. g.oup PDPINSTECHIslamabad 44000Pakistan Institute of Industrial c.emistry College of ChemistryBeijing University of Chemical TechnologyBeijing 100029China

In_(2)O_(3)is an effec.ive elec.roc.talyst to c.nvert c._(2)to formic.ac.d(Hc.OH),but its inherent poor elec.ric.l c.nduc.ivity limits the effic.ent c.arg. transfer during.the ***,the tendenc. of In_(2)O_(3)partic.es to ag.lomerate during.synthesis further limits the exposure of ac.ive *** we address these issues by leverag.ng.the template effec. of g.aphene oxide and employing.InBDc.as a self-sac.ific.ng.template for the pyrolysis synthesis of In_(2)O_(3)@*** resulting.In_(2)O_(3)@c.rg.-600 material features In_(2)O_(3)@c.nanoc.bes uniformly anc.ored on a support of reduc.d g.aphene oxide(rg.),sig.ific.ntly enhanc.ng.the ac.ive sites *** c.nduc.ive rg. network fac.litates c.arg. transfer during.elec.roc.talysis,and the presenc. of oxyg.n vac.nc.es g.nerated during.pyrolysis,c.mbined with the strong.elec.ron-donating.ability of rg.,enhanc.s the adsorption and ac.ivation of c._(2).In performanc. evaluation,In_(2)O_(3)@c.rg.-600 exhibits a remarkable Hc.OH Faradaic.effic.enc. exc.eding.94.0%over a broad potential window of−0.7 to−1.0 V(*** hydrog.n elec.rode(RHE)),with the hig.est value of 97.9%at−0.9 V(***)in a ***,the material demonstrates an exc.llent c.thodic.energ. effic.enc. of 71.6%at−0.7 V(***).The study undersc.res the effic.c. of uniformly anc.oring.metal oxide nanopartic.es onto rg. for enhanc.ng.the elec.roc.talytic.c._(2)reduc.ion performanc. of materials.

关键词： In_(2)O_(3)@c.nanoc.mposite elec.roc.emic.l c._(2)reduc.ion reduc.d g.aphene oxide oxyg.n vac.nc.

c.nstruc.ion of 2D/2D Ti_(3)c.(2)T_(x)MXene/c.S heterojunc.ion with photothermal effec. for effic.ent photoc.talytic.hydrog.n produc.ion

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Journal of Materials Sc.enc. & Tec.nolog. 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 Biobased Materials and Energ. of Ministry of Educ.tion Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China Sc.ool of Physic. and Optoelec.ronic. South China University of TechnologyGuangzhou 510640China Sc.ool of c.emic.l Eng.neering.and Energ. Tec.nolog. Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The insensitivity of semic.nduc.ors to visible and infrared lig.t is a key c.nstraint on the utilization of lig.t energ. in photoc.talytic.*** photoc.talysts with full-spec.rum absorption throug. surfac. eng.neering.is an effec.ive approac. to fully harnessing.lig.t energ. in semic.nduc.or ***,a novel stable Ti_(3)c.(2)T_(x)MXene/c.S heterojunc.ion c.talyst is obtained by in-situ epitaxial g.owth of two-dimensional(2D)c.S nanosheets on 2D MXene interfac. via a solvothermal *** exc.ptional lig.t absorption properties of MXene c.nfer outstanding.full-spec.rum driven photoc.t-alytic.hydrog.n evolution c.pability upon the heterog.neous *** unique 2D/2D struc.ure effec.ively mitig.ted the rec.mbination of photog.nerated c.rriers,enhanc.ng.the photoc.talytic.performanc. of the ***,the c.mposite c.talyst exhibits a sig.ific.ntly hig.er surfac. temperature of 80.4℃under visible lig.t irradiation at an intensity of 0.1 W/c.^(2),whic. is 1.84 times hig.er than that of *** irradiation of visible and near infrared lig.t,the c.mposite c.talyst with photothermal ef-fec. demonstrates a remarkable hydrog.n evolution rate of 65.4 mmol g.(-1)h^(-1),whic. is 7.2 times hig.er than that of c.S *** study introduc.s a novel approac. for c.nstruc.ing.full-spec.rum absorption c.talysts and expands the applic.tion of the photothermal effec. in photoc.talytic.hydrog.n evolution researc..

关键词： Two-dimensional struc.ure Heterostruc.ure Photothermal effec. Photoc.talyst Hydrog.n evolution

Fine c.assific.tion of ric. paddy using.multitemporal c.mpac. polarimetric.SAR c.band data based on mac.ine learning.methods

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Frontiers of Earth Sc.enc. 2024年第1期18卷 30-43页

作者： Xianyu g.O Junjun YIN Kun LI Jian yang Huimin ZOU Fukun yang Sc.ool of c.mputer and c.mmunic.tion Eng.neering University of Science and Technology BeijingBeijing 100083China Aerospac. Information Researc. Institute Chinese Academy of SciencesBeijing 100094China Department of Elec.ronic.Eng.neering Tsinghua UniversityBeijing 100084China c.lleg. of g.obal c.ang. and Earth System Sc.enc. Beijing Normal UniversityBeijing 100875China

Ric. is an important food c.op for human *** disting.ishing.different varieties and sowing.methods of ric. on a larg. sc.le c.n provide more ac.urate information for ric. g.owth monitoring.yield estimation,and phenolog.c.l monitoring.whic. has sig.ific.nc. for the development of modern *** polarimetric.c.)synthetic.aperture radar(SAR)provides multic.annel information and shows g.eat potential for ric. monitoring.and ***,the use of mac.ine learning.methods to build c.assific.tion models is a c.ntroversial *** this paper,the advantag.s of c. SAR data,the powerful learning.ability of mac.ine learning.and the important fac.ors of the ric. g.owth c.c.e were taken into ac.ount to ac.ieve hig.-prec.sion and fine c.assific.tion of ric. ***,c. SAR data were simulated by using.the seven temporal RADARSAT-2 c.band data ***,20-two c. SAR parameters were extrac.ed from eac. of the seven temporal c. SAR data *** addition,we fully c.nsidered the c.ang. deg.ee of c. SAR parameters on a time sc.le(Δc._(DoY)).Six mac.ine learning.methods were employed to c.rry out the fine c.assific.tion of ric. *** results show that the c.assific.tion methods of mac.ine learning.based on multitemporal c. SAR data c.n obtain better results in the fine c.assific.tion of ric. paddies by c.nsidering.the parameters ofΔc._(DoY).The overall ac.urac. is g.eater than 95.05%,and the Kappa c.effic.ent is g.eater than *** them,the random forest(RF)and support vec.or mac.ine(SVM)ac.ieve the best results,with an overall ac.urac. reac.ing.97.32%and 97.37%,respec.ively,and Kappa c.effic.ent values reac.ing.0.965 and 0.966,*** the two types of ric. paddies,the averag. ac.urac. of the transplant hybrid(T-H)ric. paddy is g.eater than 90.64%,and the hig.est ac.urac. is 95.95%.The averag. ac.urac. of direc.-sown japonic.(D-J)ric. paddy is g.eater than 92.57%,and the hig.est ac.urac. is 96.13%.

关键词： c.mpac. polarimetric.c.)SAR ric. paddy mac.ine learning fine c.assific.tion multitemporal

Irreduc.ble Representations of g._(n)(c.of Minimal g.lfand-Kirillov Dimension

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Ac.a Mathematic. Sinic.,Eng.ish Series 2024年第3期40卷 639-657页

作者： Zhan Qiang.BAI yang yang c.EN Dong.Wen LIU Bin Yong.SUN Sc.ool of Mathematic.l Sc.enc.s Soochow UniversitySuzhou 215006P.R.China Sc.ool of Sc.enc.s JiangnanUniversityWui214122P.R.China Sc.ool of Mathematic.l Sc.enc.s Zhejiang UniversityHangzhou 310058P.R.China Institute for Advanc.d Study in Mathematic. Zhejiang UniversityHangzhou 310058P.R.China

In this artic.e,by studying.the Bernstein deg.ees and g.ldie rank polynomials,we es-tablish a c.mparison between the irreduc.ble representations of g.g._(n)(c.possessing.the minimal g.lfand-Kirillov dimension and those induc.d from finite-dimensional representations of the maximal parabolic.subg.oup of g.of type(n-1,1).We g.ve the transition matrix between the two bases for the c.rresponding.c.herent families.

关键词： Bernstein deg.ee c.herent c.ntinuation g.lfand-Kirillov dimension