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普通人群胸主动脉壁厚度的MRI参考值测定

国际医学放射学杂志 2014年第6期 592-592页

作者： B.Mensel A.Quadrat T.Schneider j.P.Kühn M.Drr H.Vlzke 陈永林 Institute of Diagnostic Radiology and Neuroradiology University Medicine GreifswaldFerdinand-Sauerbruch-Straβe17475 GreifswaldGermany

摘要目的针对不同年龄及性别的普通人群,提供升主动脉和降主动脉管壁厚度的MRI测量参考值。方法本研究共纳入年龄为21～81岁之间的受试者753名(女性311

关键词：参考值降主动脉壁厚主动脉降部主动脉升部主动脉壁普通人群 MRI

脂肪多峰谱建模对肝脏铁离子及脂肪定量分析的作用:组织活检与MR成像结果的相关性分析

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国际医学放射学杂志 2012年第6期 588-588页

作者： j.P.Kühn D.Hernando A.M.Rio M.Evert S.Kannengiesser H.Vlzke 郑晶晶 Department of Radiology and Neuroradiology Ernst Moritz Arndt University GreifswaldFerdinand-Sauer-bruch-Strasse NKGreifswald D-17475Germany

摘要目的以组织活检为参考标准,探讨脂肪多峰谱建模对测定肝脏铁离子R2值及肝脏脂肪含量定量分析的影响。材料与方法本研究经伦理审查委员会批准,并获得知情同意。对肝脏疾病病人[n=95;男性50例,

关键词：脂肪 MR 组织活检脂肪变性多峰肝脏铁离子定量分析建模

成人人群全身MRI研究潜在临床相关的意外发现:发生频率和管理

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国际医学放射学杂志 2013年第3期 292-292页

作者： K.Hegenscheid R.Seipel C.O.Schmidt H.Vlzke j.P.Kühn R.Biffar 张文明 Department of Diagnostic Radiology and Neuroradiology University Medicine Greifswald

目的报道一般成人人群在进行全身MR成像(WB-MRI)检查时潜在相关的意外发现的发生频率,并且建立相关的管理草案。方法以波美拉尼亚的健康人群为研究对象,共有2500名成年受试者(1271名女性,1229名男性,平均年龄53岁)进行了标准化WB-MRI。... 详细信息

目的报道一般成人人群在进行全身MR成像(WB-MRI)检查时潜在相关的意外发现的发生频率,并且建立相关的管理草案。方法以波美拉尼亚的健康人群为研究对象,共有2500名成年受试者(1271名女性,1229名男性,平均年龄53岁)进行了标准化WB-MRI。此外,1129名参与者接受对比增强心脏MRI检查,619名接受MR血管成像检查,544名女性接受乳腺MRI检查。2名独立的住院医师进行首次阅片,第3名阅片者解决分歧。一个多学科组成的顾问委员会决定最终结果。结果 904例受试者(36.2%)的1330处意外发现具有潜在的临床意义。9处意外发现(0.4%)需要立即转诊,1052处意外发现(79.1%)被顾问委员会证实,涉及787例病人(31.5%)。腹部器官(6.8%)、泌尿系统(6.8%)和骨骼系统(6.0%)是最常见的部位。其中383处意外发现(36.4%)为良性病变,62处(5.9%)为恶性病变,607处(57.7%)性质不明。结论 WB-MRI研究中潜在相关的意外发现是很常见的,但在大多数情况下都性质不明,这需要专门的管理来保护受试者的利益和研究的完整性。要点①全身MRI研究有许多意外发现。②在32%的受试者中有潜在临床相关的意外发现。③某些人体器官发生更多的意外发现。④大部分意外发现是性质不明的。⑤多学科组成的顾问委员会管理意外发现是可行的。

关键词： MRI 全身意外发现患病率管理

德国东北部人群脂肪肝和肝脏铁过载的MRI定量研究

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国际医学放射学杂志 2017年第6期 712-712页

作者： j.P.Kühn P.Meffert C.Heske M.L.Kromrey C.O.Schmidt B.Mensel 马婉玲 Department of Diagnostic Radiology and Neuroradiology University Hospital Greifswald

摘要目的通过混杂因素校正后的质子密度脂肪分数（PDFF）和R2*的测量,量化肝脏脂肪含量和铁含量,并确定脂肪肝和肝脏铁过载的临床相关性及两者在大规模人群中

关键词：脂肪肝患病率铁过载 MRI

Measurement of the integrated Luminosities of cross-section scan data 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. Baldini 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. Dai, j. F. 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 P. F. nuan j. Fang S. S. Fang Y. Fang R. Farinelli L. Fava S. Fegan F. Feldbauer 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. Gradl 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. Haddadi 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 Andersson 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 Advanced Science and Technology Beijing 100190 China COMSATS Institute of Information Technology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker 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 Indian Institute of Tec

To investigate the nature of the Ψ（3770） resonance and to measure the cross section for e^＋e^-→DD, a cross-section scan data sample, distributed among 41 center-of-mass energy points from 3.73 to 3.89 GeV, was taken with the BESIII detector operated at the BEPCII collider in the year 2010. By analyzing the large angle Bhabha scattering events, we measure the integrated luminosity of the data sample at each center-of-mass energy point. The total integrated luminosity of the data 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

Subcellular spatial resolution achieved for deep-brain imaging in vivo using a minimally invasive multimode fiber

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Light(Science & Applications) 2018年第1期7卷 1-6页

作者： Sebastian A.Vasquez-Lopez Raphaël Turcotte Vadim Koren Martin Plöschner Zahid Padamsey Martin j.Booth TomášČižmár Nigel j.Emptage Department of Pharmacology University of OxfordMansfield RoadOxford OX13QTUK Department of Engineering Science University of OxfordParks RoadOxford OX13PJUK School of Engineering Physics and MathematicsCollege of ArtScience&EngineeringUniversity of DundeeNethergateDundee DD14HN ScotlandUK. Institute of Scientific Instruments of the CAS Královopolská14761264 BrnoCzech Republic

Achieving intravital optical imaging with diffraction-limited spatial resolution of deep-brain structures represents an important step toward the goal of understanding the mammalian central nervous system1–*** in wavefrontshaping methods and computational power have recently allowed for a novel approach to high-resolution imaging,utilizing deterministic light propagation through optically complex media and,of particular importance for this work,multimode optical fibers(MMFs)5–*** report a compact and highly optimized approach for minimally invasive in vivo brain imaging *** volume of tissue lesion was reduced by more than 100-fold,while preserving diffraction-limited imaging performance utilizing wavefront control of light propagation through a single 50-μm-core ***,we demonstrated high-resolution fluorescence imaging of subcellular neuronal structures,dendrites and synaptic specializations,in deep-brain regions of living mice,as well as monitored stimulus-driven functional Ca2+*** results represent a major breakthrough in the compromise between high-resolution imaging and tissue damage,heralding new possibilities for deep-brain imaging in vivo.

关键词： multimode fiber resolution

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高性能弹性体hnBR

合成橡胶工业 1990年第S1期13卷 274-280页

作者： R.j.Weir G.C.Blackshaw 吴祉龙 Polysar Limited CANADA CANADA

在70年代中期,耐油弹性体——丁腈橡胶在汽车和工业的许多用途方面已明显地趋近其耐热极限。于是人们开始日益注重和使用当时可得到的高性能弹性体,例如氟弹性体(FKM)、聚丙烯酸酯弹性体(ACM)、氯醚弹性体(ECO)等,并且研究、开发和随后... 详细信息

在70年代中期,耐油弹性体——丁腈橡胶在汽车和工业的许多用途方面已明显地趋近其耐热极限。于是人们开始日益注重和使用当时可得到的高性能弹性体,例如氟弹性体(FKM)、聚丙烯酸酯弹性体(ACM)、氯醚弹性体(ECO)等,并且研究、开发和随后在80年代中期推出了新的高性能耐热耐油弹性体,其中最突出的和最受欢迎的新弹性体是高饱和丁腈橡胶。 hnBR弹性体由丁腈橡胶在尖端催化剂体系存在下选择加氢而成。本文将介绍这种产品的一个系列——TORNAC橡胶。将举例说明这种弹性体的关键性能,监与其他高性能弹性体作对比。以工业部门提出的某些要求,如耐热性动力传动带、耐腐蚀性油品和燃油添加剂的优质胶管,以及其他需要的用途为例进行讨论。与此同时,还将讨论hn BR弹性体为何是满足这些要求的最佳选择之因由。

关键词：高性能弹性体 hnBR 拉伸强度耐热性能聚合物密封件流体性能低温性能永久变形性能丁睛橡胶

Assessment and selection of fungal antagonists against Rhizoctonia solani

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浙江大学学报（农业与生命科学版） 2004年第4期30卷 393-393页

作者： Grosch R Faltin F Lottmann j Kofoet A Berg G Institute of Vegetable and Ornamental Crops Theodor-Echtermeyer-Weg 1D-14979 Groβbeeren GermanyInstitute of Vegetable and Ornamental Crops Theodor-Echtermeyer-Weg 1D-14979 Groβbeeren Germany University of Rostock Microbiology Albert-Einstein-Str. 3D-18051 Rostock Germany Institute of Vegetable and Ornamental Crops Theodor-Echtermeyer-Weg 1D-14979 Groβbeeren Germany University of Rostock Microbiology Albert-Einstein-Str. 3D-18051 Rostock Germany

The soil-borne pathogen Rhizoctonia solani Kühn (teleomorph, Thanatephorus cucumeris [A.B. Frank] Donk) is worldwide responsible for serious damage of many economically important agricultural and horticultural crops. Control of Rhizoctonia diseases is difficult because this pathogen survives for many years as sclerotia in soil or as mycelium in organic matter under numerous environmental conditions. Furthermore, the pathogen has an extremely wide host range. To date, no effective control strategies against Rhizoctonia diseases are available in either organic farming or horticulture. In integrated pest management systems (IPM), mainly fungicides are used as control method. However, the European Union has decided that 60% of the chemical pesticides that were allowed in 1996 should be banned from 2003. Hence, new strategies to control one of the most important soil-borne pathogen R. solani are urgently needed. It is well-documented that an environmentally friendly alternative to protect plants against soil borne pathogens is biological control. Our work is concentrated on the development of a fungal biological control agent (BCA) especially selected against diseases caused by R. solani.. Based on a combination of in vitro and in vivo assays 339 fungal plant-associated strains was evaluated against R. solani. The following characteristics were tested in vitro: antagonistic activity at 20 ℃ and 12 ℃, the ability to produce cell wall-degrading enzymes (chitinase, β-1,3-glucanase, protease), and influence on sclerotia germination. The ability of spore production was also of importance under consideration of formulation of possible candidates. As results of the note characteristics six isolates were selected. Taxonomical characterization using molecular methods like BOX-PCR and sequencing of the 18S rDNA resulted in genetically diverse Trichoderma isolates. The disease suppression effect of the six fungal isolates were tested against bottom rot on lettuce and black scurf on

关键词：拮抗体真菌丝核菌属生物防治莴苣根腐病马铃薯黑皮病

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