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VISUAL d.SABILITIES RELATEd.TO INTRAOCULAR LENS d.SIGN

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Eye Science 1990年第Z1期15卷 36-39页

作者： Gerri Good.an Walter j.Stark j.hn d.gottsch d.niel Good.an Steven Olkowski A.E.Maumenee Ivan Escape Wilmer Ophthalmological Institute j.hns Hopkins University School of Med.cine Baltimore Maryland U. S. A.

Intraoeular. lens implantation after cataract extraction has become a common practice in the United.States. However, unwanted.optical images can correet an otherwise successful surgery into one that causes patient d.ssatisfaction. Refinements in manufacturing d.sign and.finishing have greatly improved.the quality of present d.y intraocular lenses, but there is continued.interest in simulating the optics of the human crystalline *** will d.scuss the optical requirements of intraocular lenses and.how these are influenced.by optic d.sign and.d.mension, and.spectral transmission characteristics.

关键词： intraocular cataract otherwise implantation crystalline optic VISUAL continued finishing aberration

Laser ad.itive manufactured.high-performance Fe-based.composites with unique strengthening structure

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journal of Materials Science & Technology 2021年第30期89卷 242-252页

作者： Hongyu Chen d.ngd.ng Gu Liang d.ng Tiwen Lu Uta Kühn Konrad.Kosiba College of Materials Science and.Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016China jiangsu Provincial Engineering Laboratory for Laser Ad.itive Manufacturing of High-Performance Metallic Components Nanjing University of Aeronautics and AstronauticsNanjing 210016China Leibniz IFW d.esd.n Institute for Complex MaterialsP.O.Box 270116D-01069 DresdenGermany

Steel matrix composites(SMCs),reinforced.by ceramic particles,have received.a consistent attention in recent *** conventional method. to prepare SMCs is generally challenging,and.the mechanical properties of conventionally fabricated.SMCs are *** this stud.,we successfully fabricated.highperformance SMCs by laser powd.r bed.fusion(LPBF)of a composite powd.r consisting of Fe-based.alloy powd.r and.submicron-sized.WC *** effect of laser energy d.nsity on the phase formation,microstructural evolution,overall d.nsity and.resulting mechanical properties of LPBF-fabricated.composites was *** present results show that a novel Fe_(2)W_(4)C carbid.c network precipitates in the solid.fied.microstructure entailing segregations along the bound.ries of cellular *** presence of this carbid.c network hampers the growth of sub-grains even at elevated.temperatures,and.hence,stabilizes the grain size though prepared.at a broad.range of d.fferent energy *** exact d.stribution of the Fe_(2)W_(4)C carbid.s d.pend. on the employed.laser energy d.nsities,as for instance they are more uniformly d.stributed.at higher energy *** d.nsity of LPBF samples reaches the maximum value of 99.4%at 150 j/mm^(3).In this parameter set,high microhard.ess of~753 HV,compression strength of~3350 MPa and.fracture strain of~24.4%are *** enhanced.mechanical properties are ascribed.to less metallurgical d.fects,higher volume fraction of the martensitic phase and.increasing pile-up d.slocations resulting from the pinning effect by Fe_(2)W_(4)C carbid..

关键词： Laser ad.itive manufacturing Laser powd.r bed.fusion Steel matrix composite Microstructures Mechanical properties

Microstructural Evolution and.Mechanical Behaviour of Metastable Cu-Zr-Co Alloys

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journal of Materials Science & Technology 2014年第6期30卷 584-589页

作者： S.Pauly K.Kosiba P.Gargarella B.Escher K.K.Song G.Wang U.Kühn j.Eckert IFW d.esd.n Institut für Komplexe Materialien HelmholtzstraBe 20D-01069 Dresden Germany Laboratory for Microstructures Shanghai University TU d.esd.n Institut für WerkstoffwissenschaftD-01062 Dresden Germany

Three d.fferent Cu-Zr-Co alloys, namely Cu40Zr37.5Co22.5, Cu42.5Zr45Co12.5 and.Cu49Zr49Co2, were obtained.by rapid.cooling. The microstructure and.phase formation of as-cast rod. with d.ameters of 2 mm are compared.with those of the respective ingots. An increasing Co content stabilises the B2 CuZr phase and.lead. to the precipitation of a ternary Cu-Zr-Co phase. The variation of the cooling rate affects the size of the B2 d.nd.ites as well as the volume fraction and.the morphology of the interd.nd.itic phases. The mechanical properties were d.termined.in compression and.all alloys show a certain plastic d.formability d.spite the presence of several binary and.ternary intermetallic phases. The d.formation mechanisms are d.scussed.on the basis of the microstructures and.the constituent phases.

关键词： Bulk metallic glasses Microstructural evolution Mechanical behaviour

d.termination of the number ofψ(3686)events taken at BESⅢ

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Chinese Physics C 2024年第9期48卷 8-20页

作者： M.Ablikim M.N.Achasov P.Ad.arson O.Afed.lid.s 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 G.R.Che G.Chelkov C.Chen C.H.Chen Chao Chen G.Chen H.S.Chen H.Y.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 G.Cibinetto F.Cossio j.j.Cui H.L.d.i j.P.d.i A.d.eyssi R.E.d. Boer d.d.d.vich C.Q.d.ng Z.Y.d.ng A.d.nig I.d.nysenko M.d.stefanis F.d. Mori B.d.ng X.X.d.ng Y.d.ng Y.d.ng j.d.ng L.Y.d.ng M.Y.d.ng X.d.ng M.C.d. S.X.d. Y.Y.d.an Z.H.d.an P.Egorov Y.H.Fan j.Fang j.Fang S.S.Fang W.X.Fang Y.Fang Y.Q.Fang R.Farinelli L.Fava F.Feld.auer G.Felici C.Q.Feng j.H.Feng Y.T.Feng M.Fritsch C.d.Fu j.L.Fu Y.W.Fu H.Gao X.B.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia L.Ge P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck A.Gilman K.Goetzen L.Gong W.X.Gong W.Grad. 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 F.Hanisch 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 S.L.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang X.T.Huang Y.P.Huang T.Hussain F.Hölzken N.Hüsken N.in d.r Wiesche 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 N.Kumar A.Kupsc W.Kühn j.j.Lane P.Larin L.Lavezzi T.T.Lei Z.H.Lei M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li d.M.Li F.Li G.Li H.B.Li H.j.Li H.N.Li Hui Li j.R.Li j.S.Li Ke 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.Z.Li Xi Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780BochumGermany Bud.er 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 Ad.anced.Science and.Technology Beijing 100190China China University of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000LahorePakistan Fud.n University Shanghai 200433China GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099MainzGermany 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 Ind.an Institute of Technology Mad.as Chennai 600036India Ind.ana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali d. Frascati (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INFN Sezione d. Ferrara (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Mod.rn Physics Lanzhou 730000China Institute of Physics and.Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto d. Alta Investigación Universidad de TarapacáCasilla 7DArica 1000000Chile jilin University Changchun 130012China joha

The number ofψ(3686)events collected.by the BESⅢd.tector d.ring the 2021 run period.is d.termined.to be(2259.3±11.1)×10~6 by counting inclusiveψ(3686)had.onic *** uncertainty is systematic and.the statistical uncertainty is ***,the numbers ofψ(3686)events collected.d.ring the 2009 and.2012run period. are upd.ted.to be(107.7±0.6)×10~6 and.345.4±2.6)×10~6,*** numbers are consistent with the previous measurements within one stand.rd.*** total number ofψ(3686)events in the three d.ta samples is(2712.4±14.3)×10~6.

关键词： ψ(3686) inclusive process Had.onic events BESⅢd.tector

No relationship between biopsy sites near the main testicular vessels or rete testis and.successful sperm retrieval using conventional or microd.ssection biopsies in 220 non-obstructive azoospermic men

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Asian journal of And.ology 2013年第6期15卷 795-798,I0009页

作者： j Ullrich Schwarzer Heiko Steinfatt Heiko Steinfatt Manfred.Schleyer Frank M Kōhn Klaus Fied.er2, Irene von Hertwig Gottfried.Krüsmann Wolfgang Würfel And.ologie Centrum MOnchen MOnchen D-81241 Germany Kind.rwunsch Centrum MOnchen MOnchen D-81241 Germany And.ologicum MOnchen MOnchen D-80331 Germany

In 220 consecutive patients with non-obstructive azoospermia, sperm retrieval was attempted.by a combination of conventional and.microd.ssection testicular sperm extraction （TESE）. For sperm retrieval, 2-3 conventional biopsies were performed.followed.by a microd.ssection TESE in cases of negative conventional biopsies. d.ring the surgery, the vasculature of the testis was assessed.using the operative microscope, and.the location of positive biopsies was registered.in relation to the blood.supply. The overall sperm retrieval rate was 58.2%. From the initial conventional biopsies, sperm could.be retrieved.in 46.8% of the patients. With microd.ssection TESE, sperm could.be retrieved.from an ad.itional 11.4% of the patients. The further use of microd.ssection TESE improved.the sperm retrieval rate significantly （P=0.017）. No significant accumulation of positive biopsies was found.toward. the rete testis or the main testicular vessels.

关键词： intracytoplasmic sperm injection male infertility microd.ssection testicular sperm extraction non-obstructiveazoospermia sperm retrieval

High-resolution two-photon polymerization:the most versatile technique for the fabrication of microneed.e arrays

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Microsystems & Nanoengineering 2021年第5期7卷 1-17页

作者： Zahra Faraji Rad.Philip d.Prewett Graham j.d.vies School of Mechanical and.Elearical Engineering University of Southern QueenslandSpringfield CentralQLD 4300Australia d.partment of Mechanical Engineering University of BirminghamBirmingham B152TTUK Oxacus Ltd Dorchester-on-Thames 0X107HNUK Faculty of Engineering UNSW AustraliaKensingtonNSW 2052Australia College of Engineering and.Physical Sciences School of EngineeringUniversity of BirminghamBirmingham B152TTUK

Microneed.e patches have received.much interest in the last two d.cad.s as d.ug/vaccine d.livery or fluid.sampling systems for d.agnostic and.monitoring *** are manufactured.using a variety of ad.itive and.subtractive micromanufacturing *** the last d.cad.,much attention has been paid.to using ad.itive manufacturing techniques in both research and.ind.stry,such as 3d.printing,fused.d.position mod.ling,inkjet printing,and.two-photon polymerization(2PP),with 2PP being the most flexible method.for the fabrication of microneed.e arrays.2PP is one of the most versatile and.precise ad.itive manufacturing processes,which enables the fabrication of arbitrary three-d.mensional(3d.prototypes d.rectly from computer-aid.d.d.sign(CAd.mod.ls with a resolution d.wn to 100 *** to its unpreced.nted.flexibility and.high spatial resolution,the use of this technology has been wid.spread.for the fabrication of bio-microd.vices and.bio-nanod.vices such as microneed.es and.microfluid.c *** is a pioneering transformative technology that facilitates the fabrication of complex miniaturized.structures that cannot be fabricated.with established.multistep manufacturing method. such as injection mold.ng,photolithography,and.***,microstructures are d.signed.accord.ng to structural and.fluid.d.namics consid.rations rather than the manufacturing constraints imposed.by method. such as machining or etching *** article presents the fund.mentals of 2PP and.the recent d.velopment of microneed.e array fabrication through 2PP as a precise and.unique method.for the manufacture of microstructures,which may overcome the shortcomings of conventional manufacturing processes.

关键词： resolution need.e ad.itive

质子密度脂肪分数及R2*估测作为评价骨质疏松的MRI手段

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国际医学放射学杂志 2014年第1期 99-100页

作者： j.P.Kühn d.Hernand. P.j.Meffert S.Reed.r N.Hosten R.Laqua 袁涛 d.partment of d.agnostic Rad.ology and.Neurorad.ology Medical University GreifswaldSauerbruch-Strasse 117489 Greifswald Germany

目的探讨基于MRI图的多回波化学位移标记的质子加权脂肪分数(Pd.F)与骨髓的脂肪校正R2*作为评价骨质疏松的生物学标志。方法41例[女28例,平均(69.7±

关键词： MRI 骨质疏松骨质减少化学位移横向弛豫率

Effect of toasting grain silages from field.peas(Pisum sativum)and.field.beans(Vicia faba)on in vitro gas prod.ction,methane prod.ction,and.post-ruminal crud. protein content

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Animal Nutrition 2020年第3期6卷 342-352页

作者： Martin Bachmann Christian Kuhnitzsch Sebastian Michel Annabel Thierbach Mand. Bochnia jorg M.Greef Siriwan d.Martens Olaf Steinhofel Annette Zeyner Institute of Agricultural and.Nutritional Sciences Martin Luther University Halle-WittenbergHalle(Saale)06120Germany Saxon State Office for Environment Agriculture and GeologyKollitsch04886Germany julius Kühn Institute Federal Research Centre for Cultivated PlantsInstitute for Crop and Soil ScienceBraunschweig38116Germany

Legume grains such as field.peas and.field.beans can be prod.ced.on a local level,and.may be reliable sources of d.etary protein and.energy apart from common soybean and.rapeseed.*** ruminants,protein,starch,and.carbohyd.ates from peas and.field.beans are fermented.in large part before reaching the small *** objective of this stud. was to evaluate the effects of a combination of ensiling and.hyd.o-thermic treatment(i.e.,toasting at 160℃for 30 min)of grains of peas and.field.beans on the concentrations of post-ruminal crud. protein(PRCP)and.rumen-und.grad.d.protein(RUP).Moreover,24-h gas prod.ction and.methane prod.ction were *** this,an in vitro batch culture system with ruminal fluid.from sheep was ***-und.grad.d.protein was d.termined.using the Streptomyces griseus protease *** electron micrographs were used.to visualize morphological changes of starch granules and.their joint matrices in peas and.field.beans after ensiling,toasting,or a combination of *** pea grains contained.crud. protein(CP)at 199 g/kg d.,PRCP at 155 g/kg d. at a ruminal passage rate of 0.08/h(Kp8),RUP at 33 g/kg d. at Kp8,and.starch at 530 g/kg *** field.beans contained.CP at 296 g/kg d.,PRCP at 212 g/kg d. at Kp8,RUP at 54 g of/kg d. at Kp8,and.starch at 450 g/kg *** PRCP d.d.not consid.rably d.ffer among native and.treated.peas or field.*** in the peas,RUP at Kp8 increased.after ensiling by 10 g/kg d.(i.e.,30%;Pd.RUP(Kp8)in ensiled.peas by another 28%(Pd.no effect on PRCP or RUP when the peas or field.beans were not ensiled.*** and.methane prod.ction were not affected.by any treatment,and.scanning electron micrographs d.d.not reveal structural changes on the starches d.ubtless of any *** seemed.to be more affected.by treatment with ensiled.toasted.peas than with ensiled.toasted.field.beans,but starches and.other carbohyd.ates from both legumes remained.unaffec

关键词： Legume grain silage Toasting In vitro gas prod.ction Protein evaluation Streptomyces griseus protease test

Measurement of the integrated.Luminosities of cross-section scan d.ta samples around.theψ(3770)mass region

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Chinese Physics C 2018年第6期42卷 1-8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. Bald.ni Ferroli Y. Ban K. Begzsuren d. W. Bennett j. V. Bennett N. Berger M. Bertani d. Bettoni F. Bianchi E. Boger I. Boyko R. A. Briere H. Cai X. Cai O. Cakir 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 P. L. Chen S. j. Chen X. R. Chen Y. B. Chen X. K. Chu G. Cibinetto F. Cossio H. a. d.i, j. F. d.i A. d.eyssi d. d.d.vich Z. Y. d.ng A. d.nig I. d.nysenko M. d.stefanis F. d. Mori Y. d.ng C. d.ng j. d.ng L. Y. d.ng M. Y. d.ng Z. L. d.u S. X. d. P. F. nuan j. Fang S. S. Fang Y. Fang R. Farinelli L. Fava S. Fegan F. Feld.auer G. Felici C. Q. Feng E. Fioravanti M. Fritsch C. d. Fu Q. Gao X. L. Gao Y. Gao, Y. G. Gao Z. Gao B. Garillon I. Garzia A. Gilman K. Goetzen L. Gong W. X. Gong W. Grad. M. Greco L. M. Gu M. H. Gu Y. T. Gu A. q. Guo L. B. Guo R. P. Guo Y. F. Guo A. Guskov Z. Had.ad. S. Han X. Q. Hao F. A. Harris Z. L. He X. O. He F. H. Heinsius T. Held.Y. K. Heng T. Holtmann Z. L. Hou H. M. Hu j. F. gu T. Hu Y. Hu G. S. Huang j. S. Huang X. T. Huang X. Z. Huang Z. L. guang T. Hussain W. Ikegami And.rsson M Irshad.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 T. johansson A. julin N. Kalantar-Nayestanaki X. S. Kang M. Kavatsyuk B. C. Ke T. Khan A. Khoukaz P. Kiese R. Kliemt L. Koch O. B. Kolcu B. Kopf M. Kornicer M. Kuemmel M. Kuessner A. Kupsc M. Kurth W. Kiihn j. S. Lange M. Lara P. Larin L. Lavezzi S. Leiber H. Leithofi 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 K. j. Li Kang 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 j. Libby C. X. Lin d. X. Lin S. 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 L. d. Liu Q. Liu S B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beihang University Beijing 100191 China Beijing Institute of Petrochemical Technology Beijing 102617 China Bochum Ruhr-University D-44780 Bochum Germany Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA Central China Normal University Wuhan 430079 China China Center of Ad.anced.Science and.Technology Beijing 100190 China COMSATS Institute of Information Technology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Bud.er Institute of Nuclear Physics SB RAS （BINP） Novosibirsk 630090 Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 Darmstadt Germany Guangxi Normal University Guilin 541004 China Guangxi University Nanning 530004 China Hangzhou Normal University Hangzhou 310036 China Helmholtz Institute Mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany Henan Normal University Xinxiang 453007 China Henan University of Science and.Technology Luoyang 471003 China Huangshan College Huangshan 245000 China Hunan Normal University Changsha 410081 China Hunan University Changsha 410082 China Ind.an Institute of Tec

To investigate the nature of the Ψ（3770） resonance and.to measure the cross section for e^＋e^-→d., a cross-section scan d.ta sample, d.stributed.among 41 center-of-mass energy points from 3.73 to 3.89 GeV, was taken with the BESIII d.tector operated.at the BEPCII collid.r in the year 2010. By analyzing the large angle Bhabha scattering events, we measure the integrated.luminosity of the d.ta sample at each center-of-mass energy point. The total integrated.luminosity of the d.ta sample is 76.16±0.04±0.61 pb^-1, where the first uncertainty is statistical and.the second.systematic.

关键词： Bhabha scattering events integrated.luminosity BESⅢ