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Chinese Physics C 2020年第4期44卷 I0001-I0004,1-102页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht M.Alekseev A.Amoroso F.F.An Q.An y.Bai O.Bakina R.Baldini Ferroli y.Ban K.Begzsuren J.V.Bennett N.Berger M.Bertani D.Bettoni F.Bianchi J Biernat J.Bloms I.Boyko R.A.Briere L.Calibbi h.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.Chai J.F.Chang W.L.Chang J.Charles G.Chelkov Chen G.Chen h.S.Chen J.C.Chen M.L.Chen S.J.Chen y.B.Chen h.y.Cheng W.Cheng G.Cibinetto F.Cossio X.F.Cui h.L.Dai J.P.Dai X.C.Dai A.Dbeyssi D.Dedovich Z.y.Deng A.Denig Denysenko M.Destefanis S.Descotes-Genon F.De Mori y.Ding C.Dong J.Dong L.y.Dong M.y.Dong Z.L.Dou S.X.Du S.I.Eidelman J.Z.Fan J.Fang S.S.Fang y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng M.Fritsch C.D.Fu y.Fu Q.Gao X.L.Gao y.Gao y.Gao y.G.Gao Z.Gao B.Garillon I.Garzia E.M.Gersabeck A.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.h.Gu y.T.Gu A.Q.Guo F.K.Guo L.B.Guo R.P.Guo y.P.Guo A.Guskov S.han X.Q.hao F.A.harris K.L.he F.h.heinsius T.held y.K.heng y.R.hou Z.L.hou h.M.hu J.F.hu T.hu y.hu G.S.huang J.S.huang X.T.huang X.Z.huang Z.L.huang N.huesken T.hussain W.Ikegami Andersson W.Imoehl M.Irshad Q.Ji Q.P.Ji X.B.Ji X.L.Ji h.L.Jiang X.S.Jiang X.y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin y.Jin T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk T.Khan A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.Kurth M.G.Kurth W.Kuhn J.S.Lange P.Larin L.Lavezzi h.Leithoff T.Lenz C.Li Cheng Li D.M.Li F.Li F.y.Li G.Li h.B.Li h.J.Li J.C.Li J.W.Li Ke Li L.K.Li Lei Li P.L.Li P.R.Li Q.y.Li W.D.Li W.G.Li X.h.Li X.L.Li X.N.Li X.Q.Li Z.B.Li h.Liang h.Liang y.F.Liang y.T.Liang G.R.Liao L.Z.Liao J.Libby C.X.Lin D.X.Lin y.J.Lin B.Liu B.J.Liu C.X.Liu D.Liu D.y.Liu F.h.Liu Fang Liu Feng Liu h.B.Liu h.M.Liu huanhuan Liu huihui Liu J.B.Liu J.y.Liu K.y.Liu Ke Liu Q.Liu S.B.Liu T.Liu X.Liu X.y.Liu y.B.Liu Z.A.Liu Zhiqing Liu y.F.Long X.C.Lou h.J.Lu J.D.Lu J.G.Lu y.Lu y.P.Lu C.L.Luo M.X.Luo P.W.Luo T.Luo X.L.Luo S.Lusso X.R.Lyu F.C.Ma h.L.Ma L.L.Ma M.M.Ma Q.M.Ma X.N.Ma X.X. Institute of high Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China hangzhou Normal University Hangzhou 310036China helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University of Science and Technology Luoyang 471003China huangshan College Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Ferrara I-44122FerraraItaly Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China Peking University Beijing 100871China Shandong University Jinan 250100China Shanghai

There has recently been a dramatic renewal of interest in hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plethora of charmonium-like XyZ states at BESⅢ and B factories, and the observation of an intriguing proton-antiproton threshold enhancement and the possibly related X(1835) meson state at BESⅢ, as well as the threshold measurements of charm mesons and charm baryons. We present a detailed survey of the important topics in tau-charm physics and hadron physics that can be further explored at BESⅢ during the remaining operation period of BEPCⅡ. This survey will help in the optimization of the data-taking plan over the coming years, and provides physics motivation for the possible upgrade of BEPCⅡ to higher luminosity.

关键词： meson hadron optimization

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Evidence for the decays of ∧_c^+→∑^+η and ∑^+η’

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Chinese Physics C 2019年第8期43卷 15-23页

作者： M.Ablikim F.F.An Q.An y.Bai y.Ban h.Cai X.Cai G.F.Cao J.F.Chang G.Chen h.S.Chen J.C.Chen M.L.Chen P.L.Chen S.J.Chen y.B.Chen W.Cheng h.LDai J.P.Dai Z.y.Deng y.Ding C.Dong J.Dong L.y.Dong M.y.Dong Z.L.Dou S.X.Du P.F.Duan J.Z.Fan J.Fang S.S.Fang y.Fang C.Q.Feng C.D.Fu y.Fu Q.Gao X.L.Gao y.Gao y.G.Gao Z.Gao L.Gong W.X.Gong L.M.Gu M.h.Gu y.T.Gu A.Q.Guo L.B.Guo R.P.Guo y.P.Guo S.han X.Q.hao K.L.he y.K.heng Z.L.hou h.M.hu J.F.hu T.hu y.hu G.S.huang J.S.huang X.T.huang X.Z.huang Z.L.huang Q.Ji Q.P.Ji X.B.Ji X.L.Ji X.S.Jiang X.y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin y.Jin X.S.Kang B.C.Ke C.Li Cheng Li D.M.Li F.Li F.y.Li G.Li h.B.Li h.J.Li J.C.Li J.W.Li Ke Li Lei Li P.L.Li P.R.Li Q.y.Li T.Li W.D.Li W.G.Li X.L.Li X.N. Li X.Q.Li Z.B.Li h.Liang y.F.Liang y.T.Liang G.R.Liao L.Z.Liao C.X.Lin D.X.Lin B.Liu B.J.Liu C.X.Liu D.Liu D.y.Liu F.h.Liu Fang Liu Feng Liu h.B.Liu h.L.Liu h.M.Liu huanhuan Liu huihui Liu J.B.Liu J.y.Liu K.Liu K.y.Liu Ke Liu Q.Liu S.B.Liu X.Liu y.B.Liu Z.A.Liu Zhiqing Liu y.F.Long X.C.Lou h.J.Lu J.D.Lu J.G.Lu y.Lu y.P.Lu C.L.Luo M.X.Luo T.Luo X.L.Luo X.R.Lyu F.C.Ma h.L.Ma L.L.Ma M.M.Ma Q.M.Ma X.N.Ma X.X.Ma X.y.Ma y.M.Ma y.J.Mao Z.P.Mao Z.X.Meng J.Min T.J.Min X.h.Mo y.J.Mo Z.Ning S.L.Niu S.L.Olsen Q.Ouyang y.Pan h.P.Peng J.L.Ping R.G.Ping h.R.Qi M.Qi T.y.Qi S.Qian C.F.Qiao N.Qin Z.h.Qin J.F.Qiu S.Q.Qu G.Rong W.Shan X.y.Shan M.Shao C.P. Shen P.X.Shen X.y.Shen h.y.sheng X.Shi J.J.Song X.y.Song G.X.Sun J.F.Sun L.Sun S.S.Sun X.h.Sun y.J.Sun y.K.Sun y.Z.Sun Z.J.Sun Z.T.Sun y.T.Tan C.J.Tang G.y.Tang X.Tang B.Wang B.L.Wang C.W.Wang D.y.Wang Dan Wang K.Wang L.L.Wang L.S.Wang M.Wang Meng Wang P.Wang P.L.Wang W.P.Wang X.F.Wang y.Wang y.F.Wang Z.Wang Z.G.Wang Z.y.Wang Zongyuan Wang D.h.Wei S.P.Wen L.h.Wu L.J.Wu Z.Wu L.Xia y.Xia D.Xiao y.J.Xiao Z.J.Xiao y.G.Xie y.h.Xie X.A.Xiong Q.L.Xiu G.F.Xu J.J.Xu L.Xu Q.J.Xu Q.N.Xu X.P.Xu F.yan L.yan w.B.yan W.C.yan y.h.yan h.J.yang h.X.yang L.yang S.L.yang y.h.yang y.X.yang yifan yang Z.Q.yang M.ye M.h.ye J.h.yin Z.y.you B.X.yu C.X.yu J.S.yu C.Z.yuan y.yuan y.Zeng B.X.Zhang B.y.Zhang Institute of high Energy Physics G.I.Budker Institute of Nuclear Physics SB RAS(BINP) the Novosibirsk State University helmholtz Institute Mainz Bochum Ruhr-University University of Turin INFN State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Southeast University Joint Institute for Nuclear Research INFN Laboratori Nazionali di Frascati Peking University Institute of Physics and Technology Indiana University Bloomington Carnegie Mellon University Johannes Gutenberg University of Mainz INFN Sezione di Ferrara Wuhan University Ankara University University of Chinese Academy of Sciences Istanbul Bilgi University the Moscow Institute of Physics and Technology the Functional Electronics Laboratory Tomsk State University University of South China Nanjing University Shanghai Jiao Tong University Key Laboratory for Particle Physics Astrophysics and CosmologyMinistry of EducationShanghai Key Laboratory for Particle Physics and CosmologyInstitute of Nuclear and Particle Physics Liaoning University Nankai University Zhengzhou University Tsinghua University University of Ferrara University of Eastern Piedmont Central China Normal University University of Minnesota Minneapolis GSI helmholtzcentre for heavy Ion Research Gmbh Guangxi University Nanjing Normal University KVI-CART University of Groningen henan Normal University University of hawaii Honolulu Shandong University University of the Punjab University of Muenster Uppsala University huangshan College University of Jinan Justus-Liebig-Universitaet Giessen II.Physikalisches Institut Istanbul Arel University Soochow University Beijing Institute of Petrochemical Technology China Center of Advanced Science and Technology Sun yat-Sen University Sichuan University Guangxi Normal University Indian Institute of Technology Madras Shanxi University henan University of Science and Technology Lanzhou University Zhejiang University Fudan University Key Laboratory of Nuclear Physics and Ion-beam Application(MOE)and Institute of

We study the hadronic decays of ∧c+ to the final states ∑+η and ∑+η’,using an e+e-annihilation data sample of 567 pb-1 taken at a center-of-mass energy of 4.6 GeV with the BESIII detector at the BEPCⅡ *** find evidence for the decays ∧c+→∑+η and ∑+η’ with statistical significance of 2.5σ and 3.2σ,*** to the reference decays ∧c+→∑+π0 and ∑+ω,we obtain the ratios of the branching fractions■and ■to be 0.35±0.16±0.02 and 0.86±0.34±0.04,*** upper limits at the 90% confidence level are set to be■and■.Using BESIII measurements of the branching fractions of the reference decays,we determine B（∧c+→∑+η）=（0.41±0.19±0.05）%（here,the first uncertainties are statistical and the second *** obtained branching fraction of ∧c+→∑+η is consistent with the previous measurement,and the branching fraction of ∧c+→∑+η’ is measured for the first time.

关键词： charmed baryon ∧c^+ decays branching fractions

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Observation of e^+e^-→D_s^+■^((*)0)K^- and study of the P-wave D_s mesons

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Chinese Physics C 2019年第3期43卷 5-16页

作者： M.Ablikim M.N.Achasov S.Ahmed M.Albrecht M.Alekseev A.Amoroso F.F.An Q.An y.Bai O.Bakina R.Baldini Ferroli y.Ban K.Begzsuren D.W.Bennett J.V.Bennett N.Berger M.Bertani D.Bettoni F.Bianchi I.Boyko R.A.Briere h.Cai X.Cai A.Calcaterra G.F.Cao S.A.Cetin J.Chai J.F.Chang W.L.Chang G.Chelkov G.Chen h.S.Chen J.C.Chen M.L.Chen S.J.Chen y.B.Chen W.S.Cheng G.Cibinetto F.Cossio h.L.Dai J.P.Dai A.Dbeyssi D.Dedovich Z.y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori y.Ding C.Dong J.Dong L.y.Dong M.y.Dong Z.L.Dou S.X.Du J.Z.Fan J.Fang S.S.Fang y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng M.Fritsch C.D.Fu y.Fu Q.Gao X.L.Gao y.N.Gao y.G.Gao Z.Gao B.Garillon I.Garzia A.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.h.Gu S.Gu y.T.Gu A.Q.Guo L.B.Guo R.P.Guo y.P.Guo A.Guskov Z.haddadi S.han X.Q.hao F.A.harris K.L.he F.h.heinsius T.held y.K.heng Z.L.hou h.M.hu J.F.hu T.hu y.hu G.S.huang J.S.huang X.T.huang X.Z.huang Z.L.huang N.huesken T.hussain W.Ikegami Andersson W.Imoehl M.Irshad Q.Ji Q.P.Ji X.B.Ji X.L.Ji h.L.Jiang X.S.Jiang X.y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin y.Jin T.Johansson N.Kalantar-Nayestanaki X.S.Kang M.Kavatsyuk B.C.Ke I.K.Keshk T.Khan A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.Kurth W.Kühn J.S.Lange P.Larin L.Lavezzi h.Leithoff C.Li Cheng Li D.M.Li F.Li F.y.Li G.Li h.B.Li h.J.Li J.C.Li J.W.Li Ke Li L.K.Li Lei Li P.L.Li P.R.Li Q.y.Li W.D.Li W.G.Li X.L.Li X.N.Li X.Q.Li Z.B.Li h.Liang y.F.Liang y.T.Liang G.R.Liao L.Z.Liao J.Libby C.X.Lin D.X.Lin B.Liu B.J.Liu C.X.Liu D.Liu D.y.Liu F.h.Liu Fang Liu Feng Liu h.B.Liu h.L Liu h.M.Liu huanhuan Liu huihui Liu J.B.Liu J.y.Liu K.y.Liu Kai Liu Ke Liu Q.Liu S.B.Liu X.Liu y.B.Liu Z.A.Liu Zhiqing Liu y.F.Long X.C.Lou h.J.Lu J.D.Lu J.G.Lu y.Lu y.P.Lu C.L.Luo M.X.Luo P.W.Luo T.Luo X.L.Luo S.Lusso X.R.Lyu F.C.Ma h.L.Ma L.L.Ma M.M.Ma Q.M.Ma X.N.Ma X.X.Ma X.y.Ma y.M.Ma F.E.Maas M.Maggiora S.Maldaner Q.A.Malik A.Mangoni y.J.Mao Z.P.Mao S.Marcello Z.X.Meng J.G.Messchendorp G.Mezzadri J.Min T.J.Min R.E.Mitchell X.h.Mo y Institute of high Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China hangzhou Normal University Hangzhou 310036China helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University of Science and Technology Luoyang 471003China huangshan College Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Ferrara I-44122FerraraItaly Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China Peking University Beijing 100871China Shandong University Jinan 250100China Shanghai

Studies of e^+e~→D_s^+■^((*)0)K^-and the P-wave charmed-strange mesons are performed based on an e^+e^-collision data sample corresponding to an integrated luminosity of 567 pb^(-1) collected with the BESIII detector at s^(1/2)=4.600 GeV. The processes of e^+e^-→D_s^+■^(*0)K^- and D_s^+■~0K^- are observed for the first time and are found to be dominated by the modes D_s^+D_(s1)(2536)^-and D_s^+D_(s2)~*(2573)^-, respectively. The Born cross sections are measured to be σ~B(e^+e^-→D_s^+■^(*0)K^-) =(10.1±2.3±0.8) pb and σ~B(e^+e^-→D_s^+■~0K^-) =(19.4±2.3± 1.6) pb, and the products of Born cross section and the decay branching fraction are measured to be σ~B(e^+e^-→D_s^+D_(s1)(2536)^-+c.c.)·B(D_(s1)(2536)^-→■^(*0)K^-)=(7.5±1.8±0.7) pb and σ~B(e^+e^-→D_s^+D_(s2)~*(2573)^-+ c.c.)·B(D_(s2)~*(2573)^-→■~0 K^-)=(19.7 ± 2.9 ±2.0) pb. For the D_(s1)(2536)^-and D_(s2)~*(2573)^-mesons, the masses and widths are measured to be M(D_(s1)(2536)^-)=(2537.7±0.5 ±3.1) MeV/c2, Γ(D_(s1)(2536)^-) =(1.7 ±1.2 ±0.6)MeV, and M(D_(s2)~*(2573)^-)=(2570.7±2.0 ±1.7) MeV/c^2, Γ(D_(s2)~*(2573)^-)=(17.2 ±3.6 ±1.1) MeV. The spin-parity of the D_(s2)~*(2573)^-meson is determined to be J^p= 2^+. In addition, the processes e^+e^-→D_s^+■^((*)0)K^-are searched for using the data samples taken at four(two) center-of-mass energies between 4.416(4.527) and 4.575 GeV, and upper limits at the 90% confidence level on the cross sections are determined.

关键词： cross section P-wave D_s mesons resonance parameters spin-parity BESIII

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Boosting Oxygen Evolution Reaction Performance on NiFe‑Based Catalysts Through d‑Orbital hybridization

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Nano-Micro Letters 2025年第1期17卷 281-292页

作者： Xing Wang Wei Pi sheng hu haifeng Bao Na yao Wei Luo State Key Laboratory of New Textile Materials and Advanced Processing Technology Key Laboratory of New Textile Materials and Applications of Hubei ProvinceSchool of Materials Science and EngineeringWuhan Textile UniversityWuhan 430200People’s Republic of China College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072People’s Republic of China

Anion-exchange membrane water electrolyzers(AEMWEs)for green hydrogen production have received intensive attention due to their feasibility of using earth-abundant NiFe-based *** introducing a third metal into NiFe-based catalysts to construct asymmetrical M-NiFe units,the d-orbital and electronic structures can be adjusted,which is an important strategy to achieve sufficient oxygen evolution reaction(OER)performance in ***,the ternary NiFeM(M:La,Mo)catalysts featured with distinct M-NiFe units and varying d-orbitals are reported in this *** and theoretical calculation results reveal that the doping of La leads to optimized hybridization between d orbital in NiFeM and 2p in oxygen,resulting in enhanced adsorption strength of oxygen intermediates,and reduced rate-determining step energy barrier,which is responsible for the enhanced OER *** critically,the obtained NiFeLa catalyst only requires 1.58 V to reach 1 A cm^(−2) in an anion exchange membrane electrolyzer and demonstrates excellent long-term stability of up to 600 h.

关键词： NiFe-based catalysts d-orbital coupling Oxygen evolution reaction Anion exchange membrane electrolyzer

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Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-Qing Qiao Guo hui Bojing Sun Dongfang hou Meidi Wang Xueqian Wu Tao Wu Dong-sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic h2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： heterojunctions LSPR Photocatalyst Phase junction Schottky junction Photothermal effect

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PM_(2.5) in China:Measurements,sources,visibility and health effects,and mitigation

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Particuology 2014年第2期12卷 1-26页

作者： David y.h.Pui sheng-Chieh Chen Zhili Zuo Department of Mechanical Engineering College of Science and EngineeringUniversity of Minnesota

Concern over the health effects of fine particles in the ambient environment led the U.S. Environmental Protection Agency to develop the first standard for PM2.5 （particulate matter less than 2.5 μm） in 1997. The Particle Technology Laboratory at the University of Minnesota has helped to establish the PM2.5 standard by developing many instruments and samplers to perform atmospheric measurements. In this paper, we review various aspects of PM2.5, including its measurement, source apportionment, visibility and health effects, and mitigation. We focus on PM2.s studies in China and where appropriate, compare them with those obtained in the U.S. Based on accurate PM2.5 sampling, chemical analysis, and source apportionment models, the major PM2.5 sources in China have been identified to be coal combustion, motor vehicle emissions, and industrial sources. Atmospheric visibility has been found to correlate well with PM2.s concentration. Sulfate, ammonium, and nitrate carried by PM2.s, commonly found in coal burning and vehicle emissions, are the dominant contributors to regional haze in China. Short-term exposure to PM2.s is strongly associated with the increased risk of morbidity and mortality from cardiovascular and respiratory diseases in China. The strategy for PMzs mitigation must be based on reducing the pollutants from the two primary sources of coal-fired power plants and vehicle emissions. Although conventional Particulate Emission Control Devices （PECD） such as electrostatic precipitators in Chinese coal-fired power plants are generally effective for large particles, most of them may not have high collection efficiency of PM2.5. Baghouse filtration is gradually incorporated into the PECD to increase the PM2.5 collection efficiency. By adopting stringent vehicle emissions standard such as Euro 5 and 6, the emissions from vehicles can be gradually reduced over the years. An integrative approach, from collaboration among academia, government, and industries, can effe

关键词： PM2.5 in ChinaAtmospheric particle size distributionPM2.5 samplingChemical composition of PM2.sSource apportionment modelsPM2.5 health impactPM2.s mitigationCoal-fired power plantParticle emission control devices (PECD)Baghouse filtrationIntegrative approach

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Behavior of Transversal Crack on Slab Corner During V-h Rolling Process

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Journal of Iron and Steel Research International 2006年第6期13卷 31-37页

作者： yU hai-liang LIU Xiang-hua LI Chang-sheng y. Kusaba State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110004 Liaoning China Sumitomo Metal Industries Ltd Fuso-cho 660 AMAGASAKI Japan

The behavior of transversal cracks on the surface of the slab corner during vertical and horizontal （V-h） rolling process with flat vertical roll and groove vertical roll was simulated by explicit dynamic finite element method. The closure and growth of crack and the contact pressure on surfaces of the crack in contacting zone between slab and roll during rolling process were analyzed. The results showed that during vertical rolling process, when the groove vertical roll is used, the maximum contact pressure on surfaces of the crack is 115 MPa, and the closure of crack is stable when the flat vertical roll is used, the maximum contact pressure on surfaces of the crack is 70 MPa, and it fluctuates greatly. During horizontal rolling process, when groove vertical roll is used, the contact pressure becomes zero which may accelerate the growth of crack when flat vertical roll is used, there is still contact pressure. The cal culated results are in good agreement with the results of test.

关键词： slab crack V-h rolling process FEM

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Small extracellular vesicles derived from human induced pluripotent stem cell-differentiated neural progenitor cells mitigate retinal ganglion cell degeneration in a mouse model of optic nerve injury

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Neural Regeneration Research 2025年第2期20卷 587-597页

作者： Tong Li hui-Min Xing hai-Dong Qian Qiao Gao sheng-Lan Xu hua Ma Zai-Long Chi State Key Laboratory of Ophthalmology Optometry and Visual ScienceEye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina National Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina

Several studies have found that transplantation of neural progenitor cells(NPCs)promotes the survival of injured ***,a poor integration rate and high risk of tumorigenicity after cell transplantation limits their clinical *** extracellular vesicles(sEVs)contain bioactive molecules for neuronal protection and *** studies have shown that stem/progenitor cell-derived sEVs can promote neuronal survival and recovery of neurological function in neurodegenerative eye diseases and other eye *** this study,we intravitreally transplanted sEVs derived from human induced pluripotent stem cells(hiPSCs)and hiPSCs-differentiated NPCs(hiPSC-NPC)in a mouse model of optic nerve *** results show that these intravitreally injected sEVs were ingested by retinal cells,especially those localized in the ganglion cell *** with hiPSC-NPC-derived sEVs mitigated optic nerve crush-induced retinal ganglion cell degeneration,and regulated the retinal microenvironment by inhibiting excessive activation of *** analysis further revealed that hiPSC-NPC derived sEVs transported neuroprotective and anti-inflammatory miRNA cargos to target cells,which had protective effects on RGCs after optic nerve *** findings suggest that sEVs derived from hiPSC-NPC are a promising cell-free therapeutic strategy for optic neuropathy.

关键词： exosome miRNA neural progenitor cell neurodegeneration neuroinflammation neuroprotection optic nerve crush optic neuropathy retinal ganglion cell small extracellular vesicles

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Improved hrmander’s Theorem and New Methods for Oscillatory Integral Operators

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Acta Mathematica Sinica,English Series 2009年第11期25卷 1865-1874页

作者： sheng-Ming MA LMIB and School of Mathematics and System Sciences Beihang University Beijing 100083 P. R. China

This paper proves a theorem on the decay rate of the oscillatory integral operator with a degenerate C^∞ phase function, thus improving a classical theorem of hSrmander. The proof invokes two new methods to resolve the singularity of such kind of operators： a delicate method to decompose the operator and balance the L^2 norm estimates; and a method for resolution of singularity of the convolution type. The operator is decomposed into four major pieces instead of infinite dyadic pieces, which reveals that Cotlar＇s Lemma is not essential for the L^2 estimate of the operator. In the end the conclusion is further improved from the degenerate C^∞ phase function to the degenerate C^4 phase function.

关键词： oscillatory integral operators decay rate Fourier integral operators degenerate phase resolution of singularity

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Moment Inequality and hlder Inequality for BSDEs

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Acta Mathematicae Applicatae Sinica 2009年第1期25卷 11-20页

作者： sheng-jun Fan College of School China University of Mining and Technology Xuzhou 221008 China

Under the Lipschitz and square integrable assumptions on the generator g of BSDEs, this paper proves that if g is positively homogeneous in （y, z） and is decreasing in y, then the Moment inequality for BSDEs with generator g holds in general, and if g is positively homogeneous and sub-additive in （y, z）, then the hSlder inequality and Minkowski inequality for BSDEs with generator g hold in general.

关键词： Backward stochastic differential equation moment inequality for bsdes hSlder inequality forbsdes minkowski inequality for BSDEs

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