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Construction 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 science & 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 Biobased Materials and Energy of Ministry of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China school of physics and Optoelectronics South China University of TechnologyGuangzhou 510640China school of Chemical Engineering and Energy Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The insensitivity of semiconductors to visible and infrared light is a key constraint on the utilization of light energy in photocatalytic *** photocatalysts with full-spectrum absorption through surface engineering is an effective approach to fully harnessing light energy in semiconductor ***,a novel stable Ti_(3)C_(2)T_(x)MXene/Cds heterojunction catalyst is obtained by in-situ epitaxial growth of two-dimensional(2D)Cds nanosheets on 2D MXene interface via a solvothermal *** exceptional light absorption properties of MXene confer outstanding full-spectrum driven photocat-alytic hydrogen evolution capability upon the heterogeneous *** unique 2D/2D structure effectively mitigated the recombination of photogenerated carriers,enhancing the photocatalytic performance of the ***,the composite catalyst exhibits a significantly higher surface temperature of 80.4℃under visible light irradiation at an intensity of 0.1 w/cm^(2),which is 1.84 times higher than that of *** irradiation of visible and near infrared light,the composite catalyst with photothermal ef-fect demonstrates a remarkable hydrogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is 7.2 times higher than that of Cds *** study introduces a novel approach for constructing full-spectrum absorption catalysts and expands the application of the photothermal effect in photocatalytic hydrogen evolution research.

关键词： Two-dimensional structure Heterostructure photothermal effect photocatalyst Hydrogen evolution

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sTCF conceptual design report (Volume 1): physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai l.p.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu F.M.Cai H.Cai j.j.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen j.F.Chen K.Chen l.l.Chen p.Chen s.l.Chen s.M.Chen s.Chen s.p.Chen w.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng j.Cheng s.Cheng T.G.Cheng j.p.Dai l.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko j.M.Dias D.Z.Ding l.Y.Dong w.H.Dong V.Druzhinin D.s.Du Y.j.Du Z.G.Du l.M.Duan D.Epifanov Y.l.Fan s.s.Fang Z.j.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng j.l.Fu j.Gao Y.N.Gao p.s.Ge C.Q.Geng l.s.Geng A.Gilman l.Gong T.Gong B.Gou w.Gradl j.l.Gu A.Guevara l.C.Gui A.Q.Guo F.K.Guo j.C.Guo j.Guo Y.p.Guo Z.H.Guo A.Guskov K.l.Han l.Han M.Han X.Q.Hao j.B.He s.Q.He X.G.He Y.l.He Z.B.He Z.X.Heng B.l.Hou T.j.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.j.Hu w.H.Hu X.H.Hu Y.C.Hu j.Hua G.s.Huang j.s.Huang M.Huang Q.Y.Huang w.Q.Huang X.T.Huang X.j.Huang Y.B.Huang Y.s.Huang N.Hüsken V.Ivanov Q.p.ji j.j.jia s.jia Z.K.jia H.B.jiang j.jiang s.Z.jiang j.B.jiao Z.jiao H.j.jing X.l.Kang X.s.Kang B.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.lei E.levichev C.H.li C.li D.Y.li F.li G.li G.li H.B.li H.li H.N.li H.j.li H.l.li j.M.li j.li l.li l.li l.Y.li N.li p.R.li R.H.li s.li T.li w.j.li X.li X.H.li X.Q.li X.H.li Y.li Y.Y.li Z.j.li H.liang j.H.liang Y.T.liang G.R.liao l.Z.liao Y.liao C.X.lin D.X.lin X.s.lin B.j.liu C.w.liu D.liu F.liu G.M.liu H.B.liu j.liu j.j.liu j.B.liu K.liu K.Y.liu K.liu l.liu Q.liu s.B.liu T.liu X.liu Y.w.liu Y.liu Y.l.liu Z.Q.liu Z.Y.liu Z.w.liu I.logashenko Y.long C.G.lu j.X.lu N.lu Q.F.lü Y.lu Y.lu Z.lu p.lukin F.j.luo T.luo X.F.luo Y.H.luo H.j.lyu X.R.lyu j.p.Ma p.Ma Y.Ma Y.M.Ma F.Maas s.Malde D.Matvienko Z.X.Meng R.Mitchell A.Nefediev Y.Nefedov s.l.Olsen Q.Ouyang p.pakhlov G.pakhlova X.pan Y.pan E.passemar Y.p.pei H.p.peng l.peng X.Y.peng X.j.peng K.peters s.pivovarov E.pyata B.B.Qi Y.Q.Qi w.B.Qian Y.Qian C.F.Qiao j.j.Qin j.j.Qin l.Q.Qin X.s.Qin T.l.Qiu j.Rademacker C.F.Redmer H.Y.sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear physics Novosibirsk 630090Russia CAs Key laboratory of Theoretical physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central south University Changsha 410083China China University of Geosciences Wuhan 430074China China University of Mining and Technology Xuzhou 221116China École polytechnique Fédérale de lausanne(EpFl) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy physics Center Chung-Ang UniversitySeoul 06974Korea Higher school of Economy 11 pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced science Facilities Shenzhen 518107China Institute of High Energy physics Chinese Academy of SciencesBeijing 100049China Institute of Modern physics Chinese Academy of SciencesLanzhou 730000China Institute of physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical physics Chinese Academy of SciencesBeijing 100190China jilin University Changch

The superτ-charm facility(sTCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** sTCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEpCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the standard *** sTCF project in China is under development with an extensive R&D *** document presents the physics opportunities at the sTCF,describes conceptual designs of the sTCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity sTCF detector conceptual design

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Biocatalytic stereoselective synthesis of methyl mandelates by engineering a cytochrome p450 hydroxylase

Green Synthesis and Catalysis

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Green synthesis and Catalysis 2024年第2期5卷 88-93页

作者： lingzhi xie Yun Zhang Ruyue Zhang Haibo Cui Baodong Cui wenyong Han Nanwei wan Zhi li Yongzheng Chen Key laboratory of Biocatalysis&Chiral Drug synthesis of Guizhou province Generic Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of PharmacyZunyi Medical UniversityZunyi 563000China Key laboratory of Basic pharmacology of Ministry of Education and joint International Research laboratory of Ethnomedicine of Ministry of Education Zunyi Medical UniversityZunyi 563000China Department of Chemical and Biomolecular Engineering National University of singapore 4 Engineering Drive 4Singapore 117585Singapore

Chiral methyl mandelates are useful synthons in organic transformation and pharmaceutical *** synthesis of these valuable compounds by direct C–H activating oxidative hydroxylation has attracted keen *** herein is achieving the stereoselective and efficient bio-hydroxylation of methyl 2-phenylacetates to the chiral methyl mandelates by directed evolution of the cytochrome p450DA *** the present study,a new colorimetric high-throughput screening assay was successfully developed based on a dualenzyme cascade for the engineering of the p450DA's hydroxylation *** beneficial variants with enhanced bio-hydroxylation activity were created by combining random mutagenesis and site-saturated/directed mutagenesis ***-cell bio-hydroxylation of various methyl 2-phenylacetates using the best septupletmutant p450DA-11 yielded the corresponding chiral methyl mandelates in up to 92%isolated yields and>99%ee.

关键词： Bio-hydroxylation Directed evolution Cytochrome p450 High-throughput screening Methyl mandelates

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Transverse momentum balance of dijets in Xe+Xe collisions at the lHC

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Nuclear science and Techniques 2024年第7期35卷 137-146页

作者： Yao li shu-wan shen sa wang Ben-wei Zhang Key laboratory of Quark&lepton physics(MOE)and Institute of particle physics Central China Normal UniversityWuhan430079China College of science China Three Gorges UniversityYichang443002China Center for Astronomy and space sciences and Institute of Modern physics China Three Gorges UniversityYichang443002China Guangdong-Hong Kong joint laboratory of Quantum Matter Guangdong Provincial Key Laboratory of Nuclear ScienceSouthern Nuclear Science Computing CenterSouth China Normal UniversityGuangzhou510006China

we present a theoretical study of the medium modifications of the p_(T)balance (x_(j)) of dijets in Xe+Xe collisions at■.The initial production of dijets was carried out using the pOwHEG+pYTHIA8 prescription,which matches the next-toleading-order (NlO) QCD matrix elements with the parton shower (ps) *** sHEll model described the in-medium evolution of nucleus–nucleus collisions using a transport *** theoretical results of the dijet xjin the Xe+Xe collisions exhibit more imbalanced distributions than those in the p+p collisions,consistent with recently reported ATlAs *** utilizing the Interleaved Flavor Neutralisation,an infrared-and-collinear-safe jet flavor algorithm,to identify the flavor of the reconstructed jets,we classify dijets processes into three categories:gluon–gluon (gg),quark–gluon (qg),and quark–quark (qq),and investigated the respective medium modification patterns and fraction changes of the gg,qg,and qq components of the dijet sample in Xe+Xe *** is shown that the increased fraction of qg component at a small x_(j)contributes to the imbalance of the dijet;in particular,the q_(1)g_(2)(quark-jet-leading) dijets experience more significant asymmetric energy loss than the g_(1)q_(2)(gluon-jet-leading) dijets traversing the *** comparing the■of inclusive,■ dijets in Xe+Xe collisions,we observe■.Moreover,ρ_(Xe),p_(b),the ratios of the nuclear modification factors of dijets in Xe+Xe to those in pb+pb,were calculated,which indicates that the yield suppression of dijets in pb+pb is more pronounced than that in Xe+Xe owing to the larger radius of the lead nucleus.

关键词： Heavy-ion collisions Quark-gluon plasma jet quenching Transverse momentum balance

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Extracellular vesicles from human urine-derived stem cells delay aging through the transfer of plAU and TIMp1

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Acta pharmaceutica sinica B 2024年第3期14卷 1166-1186页

作者： shanshan Rao Zehui He Zun wang Hao Yin Xiongke Hu Yijuan Tan Tengfei wan Hao Zhu Yi luo Xin wang Hongming li Zhenxing wang Xinyue Hu Chungu Hong Yiyi wang Mingjie luo wei Du Yuxuan Qian siyuan Tang Hui xie Chunyuan Chen Department of Orthopedics Movement System Injury and Repair Research CenterXiangya HospitalCentral South UniversityChangsha 410008China Hunan Key laboratory of Angmedicine Changsha 410008China Xiangya school of Nursing Central South UniversityChangsha 410013China Department of pediatric Orthopedics Hunan Children’s HospitalUniversity of South ChinaChangsha 410007China Department of Respiratory Medicine Xiangya HospitalCentral South UniversityChangsha 410008China school of Nursing Xinjiang Medical UniversityUrumqiXinjiang 830000China Department of Rehabilitation Xiangya HospitalCentral South UniversityChangsha 410008China National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangsha 410008China

Aging increases the risks of various diseases and the vulnerability to *** senescence is a hallmark of aging that contributes greatly to aging and aging-related *** study demonstrates that extracellular vesicles from human urine-derived stem cells(UsC-EVs)efficiently inhibit cellular senescence in vitro and in *** intravenous injection of UsC-EVs improves cognitive function,increases physical fitness and bone quality,and alleviates aging-related structural changes in different organs of senescence-accelerated mice and natural aging *** anti-aging effects of UsC-EVs are not obviously affected by the UsC donors’ages,genders,or health *** analysis reveals that UsC-EVs are enriched with plasminogen activator urokinase(plAU)and tissue inhibitor of metalloproteinases 1(TIMp1).These two proteins contribute importantly to the anti-senescent effects of UsC-EVs associated with the inhibition of matrix metalloproteinases,cyclin-dependent kinase inhibitor 2A(p16INK4a),and cyclin-dependent kinase inhibitor 1A(p21cip1).These findings suggest a great potential of autologous UsC-EVs as a promising anti-aging agent by transferring plAU and TIMp1 proteins.

关键词： Extracellular vesicles Urine-derived stem cells Cellular senescence Anti-aging plAU TIMp1 senescence-accelerated mice Natural aging mice

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Rational design and synthesis of Cr_(1-x)Te/Ag_(2)Te composites for solid-state thermoelectromagnetic cooling near room temperature

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Chinese physics B 2024年第5期33卷 580-586页

作者：孙笑晨谢承昊陈思汗万京伟谭刚健唐新峰 state Key laboratory of Advanced Technology for Materials synthesis and processing Wuhan University of TechnologyWuhan 430070China International school of Materials science & Engineering Wuhan University of TechnologyWuhan 430070China

Materials with both large magnetocaloric response and high thermoelectric performance are of vital importance for all-solid-state thermoelectromagnetic *** two properties,however,hardly coexist in single phase materials except previously reported hexagonal Cr_(1-x)Te half metal where a relatively high magnetic entropy change(-△s_(M))of~2.4 j·kg^(-1)·K^(-1)@5 T and a moderate thermoelectric figure of merit(ZT)of~1.2×10^(-2)@300 K are simultaneously *** we aim to increase the thermoelectric performance of Cr_(1-x)Te by compositing with semiconducting Ag_(2)*** is discovered that the in-situ synthesis of Cr_(1-x)Te/Ag_(2)Te composites by reacting their constitute elements above melting temperatures is unsuccessful because of strong phase ***,at elevated temperatures(T>800 K),Cr_(1-x)Te has a much lower deformation energy than Ag_(2)Te and tends to become more Cr-deficient by capturing Te from Ag_(2)***,Ag is insufficiently reacted and as a metal it deteriorates *** then rationalize the synthesis of Cr_(1-x)Te/Ag_(2)Te composites by ex-situ mix of the pre-prepared Cr_(1-x)Te and Ag_(2)Te binary compounds followed by densification at a low sintering temperature of 573 K under a pressure of 3.5 *** show that by compositing with 7 mol%Ag_(2)Te,the seebeck coefficient of Cr_(1-x)Te is largely increased while the lattice thermal conductivity is considerably reduced,leading to 72%improvement of *** comparison,-△s_(M)is only slightly reduced by 10%in the *** work demonstrates the potential of Cr_(1-x)Te/Ag_(2)Te composites for thermoelectromagnetic cooling.

关键词： thermoelectromagnetic cooling thermoelectric magnetocaloric composite chromium telluride

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Time-resolved spectral properties of Fermi-GBM Bright long Gamma-Ray Bursts

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Research in Astronomy and Astrophysics 2024年第2期24卷 58-73页

作者： wan-Kai wang wei xie Zhi-Fu Gao shuo Xiao Ai-jun Dong Bin Zhang Qi-jun Zhi Department of Astronomy School of Physics and Electronic ScienceGuizhou Normal UniversityGuiyang 550001China Guizhou provincial Key laboratory of Radio Astronomy Data processing Guizhou Normal UniversityGuiyang 550001China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China

The prompt emission mechanism of gamma-ray bursts(GRBs)is still unclear,and the time-resolved spectral analysis of GRBs is a powerful tool for studying their underlying physical *** performed a detailed time-resolved spectral analysis of 78 bright long GRB samples detected by Fermi/Gamma-ray Burst Monitor.A total of 1490 spectra were obtained and their properties were studied using a typical Band-shape ***,the parameter distributions of the time-resolved spectrum are given as follows:the low-energy spectral indexα~-0.72,high-energy spectral indexβ~2.42,the peak energy E_(p)~221.69 keV,and the energy flux F~7.49×10^(-6)erg cm^(-2)s^(-1).More than 80%of the bursts exhibit the hardest low-energy spectral indexα_(max),exceeding the synchrotron limit(-2/3).second,the evolution patterns of a and E_(p)were statistically *** results show that for multi-pulse GRBs the intensity-tracking pattern is more common than the hard-to-soft pattern in the evolution of both E_(p)andα.The hard-to-soft pattern is generally shown in single-pulse GRBs or in the initial pulse of multi-pulse ***,we found a significant positive correlation between F and E_(p),with half of the samples exhibiting a positive correlation between F andα.we discussed the spectral evolution of different radiation *** diversity of spectral evolution patterns indicates that there may be more than one radiation mechanism occurring in the GRB radiation process,including photo spheric radiation and synchrotron ***,it may also involve only one radiation mechanism,but more complicated physical details need to be considered.

关键词： (stars:)gamma-ray burst general-methods statistical-methods data analysis

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Amplitude analysis of the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Chinese physics C 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov p.Adlarson O.Afedulidis X.C.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-R.Bao V.Batozskaya K.Begzsuren N.Berger M.Berlowski M.Bertani D.Bettoni F.Bianchi E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao s.A.Cetin j.F.Chang w.l.Chang G.R.Che G.Chelkov C.Chen C.H.Chen Chao Chen G.Chen H.s.Chen M.l.Chen s.j.Chen s.l.Chen s.M.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Y.Q.Chen Z.j.Chen Z.Y.Chen s.K.Choi X.Chu G.Cibinetto F.Cossio j.j.Cui H.l.Dai j.p.Dai A.Dbeyssi R.E.de Boer D.Dedovich C.Q.Deng Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori B.Fang s.s.Fang w.X.Fang Y.Fang Y.Q.Fang R.Farinelli l.Fava F.Feldbauer G.Felici C.Q.Feng j.H.Feng Y.T.Feng K.Fischer M.Fritsch C.D.Fu j.l.Fu Y.w.Fu H.Gao Y.N.Gao Yang Gao s.Garbolino I.Garzia p.T.Ge Z.w.Ge C.Geng E.M.Gersabeck B.Ding X.X.Ding Y.Ding Y.Ding j.Dong l.Y.Dong M.Y.Dong X.Dong M.C.Du s.X.Du Z.H.Duan p.Egorov Y.H.Fan j.Fang jA.Gilman K.Goetzen l.Gong w.X.Gong w.Gradl s.Gramigna M.Greco M.H.Gu Y.T.Gu C.Y.Guan Z.l.Guan A.Q.Guo l.B.Guo M.j.Guo R.p.Guo Y.p.Guo A.Guskov j.Gutierrez K.l.Han T.T.Han X.Q.Hao F.A.Harris K.K.He K.l.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold T.Holtmann p.C.Hong G.Y.Hou X.T.Hou Y.R.Hou Z.l.Hou B.Y.Hu H.M.Hu j.F.Hu T.Hu Y.Hu G.s.Huang K.X.Huang l.Q.Huang X.T.Huang Y.p.Huang T.Hussain F.H\"olzken N.H\"usken N.in der wiesche M.Irshad j.jackson s.janchiv j.H.jeong Q.ji Q.p.ji w.ji X.B.ji X.l.ji Y.Y.ji X.Q.jia Z.K.jia D.jiang H.B.jiang p.C.jiang s.s.jiang T.j.jiang X.s.jiang Y.jiang j.B.jiao j.K.jiao Z.jiao s.jin Y.jin M.Q.jing X.M.jing T.johansson s.Kabana N.Kalantar-Nayestanaki X.l.Kang X.s.Kang M.Kavatsyuk B.C.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf M.Kuessner X.Kui A.Kupsc w.K\"uhn j.j.lane p.larin l.lavezzi T.T.lei Z.H.lei H.leithoff M.lellmann T.lenz C.li C.li C.H.li Cheng li D.M.li F.li G.li H.li H.B.li H.j.li H.N.li Hui li j.R.li j.s.li K.li l.j.li l.K.li lei li M.H.li p.R.li Q.M.li Q.X.li R.li s.X.li T.li w.D.li w.G.li X.li X.H.li X.l.li X.Y.li Y Institute of High Energy physics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780 BochumGermany Budker Institute of Nuclear physics sB RAs(BINp) Novosibirsk 630090Russia Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central south University Changsha 410083China China Center of Advanced science and Technology Beijing 100190China China University of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GsI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China Henan University of science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China 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 INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN sezione di Ferrara University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Modern physics Lanzhou 730000China Institute of physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity of 2.93 fb^(−1)taken at the center-of-mass energy√s=3.773 GeV with the BEsIII detector,a joint amplitude analysis is performed on the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decays D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(s)are observed in both *** the obtained amplitude model,the Cp-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** amplitude analysis provides an important model for the binning strategy in measuring the strong phase parameters of D^(0)→4πwhen used to determine the CKM angleγ(ϕ_(3))via the B^(−)→DK^(−)decay.

关键词： BEsIII D^(0)meson decays amplitude analysis Cp-even fraction

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Fjord-Type AIEgens Based on Inherent Through-space Conjugation

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CCs Chemistry 2024年第7期6卷 1739-1747页

作者： Ye-Qiang Han Yuan xie jianyu Zhang shiyu Tan Haoke Zhang Ben Zhong Tang jonathan l.sessler Feihe Huang stoddart Institute of Molecular science Department of ChemistryZhejiang UniversityHangzhou 310058 Zhejiang-Israel joint laboratory of self-Assembling Functional Materials ZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou 311215 MOE Key laboratory of Macromolecular synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310058 Center for AIE Research College of Materials Science and EngineeringShenzhen UniversityShenzhen 518061 Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionThe Hong Kong University of Science and TechnologyKowloonHong Kong 999077 school of science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen(CUHK-Shenzhen)Guangzhou 518172 Department of Chemistry The University of Texas at AustinAustinTexas 78712-1224 Green Catalysis Center and College of Chemistry Zhengzhou UniversityZhengzhou 450001

Through-space conjugation(TsC)is a noncovalently electronic interaction that is emerging as a potential complement to through-bond conjugation(TBC)-based strategies for constructing luminescent ***,the design of efficient luminogens based on TsC is currently challenging due to a lack of established structure-property *** is particularly true in the case of luminogens displaying aggregation-induced emission(AIE)*** this work,three terphenyl derivatives were prepared,and their photophysical properties were systemically *** was found that relative to the corresponding m-and p-linked analogues,the electronic interaction of TBC is weakened while the strength of TsC is commensurately enhanced in the constitutional isomer containing an o-linked fjordtype *** this set of luminogens,the presence of a fjord-type arrangement promotes a transformation from aggregation-caused quenching to *** investigations involving congeneric quaterphenyl and pentphenyl isomers support the universality of the fjord-type unit as a framework for synthesizing AIE-active luminogens(AIEgens)with inherent *** work not only provides a novel set of AIEgens but also establishes the utility of TsC in controlling the photophysical properties of nonconventional and twisted luminogens.

关键词： fjord-type through-space conjugation through-bond conjugation aggregation-induced emission luminescence twisted conformation

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Evaluation on Moisture Resistance of Asphalt Mixture with Active Mineral powder

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武汉理工大学学报 2010年第17期32卷 210-214页

作者： xie j.w. s p wan.l Key laboratory of silicate Materials science and Engineering Wuhan University of TechnologyWuhan 430070China

A new type of filler named 'active mineral powder' (AMp) was introduced and applied in asphalt mixture in order to improve the adhesive property of gneiss or granite aggregates and asphalt. The treated mixtures contained 2% AMp by weight of the total aggregates as filler. The moisture stabilization properties of various combined mixtures were analyzed using the adhesive test,Marshall stability and indirect tensile strength tests. Five frost-thaw cycles test was conducted to further investigate the effect of active filler on asphalt mixtures in the indirect tensile strength experiment. The results show that active filler improves the moisture stability of mixtures with gneiss and granite. The active mechanism of AMp was also discussed in this paper.

关键词： gneiss granite moisture destruction active mineral powder

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