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模拟库水位变化的抗滑桩加固边坡离心模型试验研究

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岩石力学与工程学报 2009年第5期28卷 939-946页

作者：李邵军 KNAPPETT j A 冯夏庭陈静中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室湖北武汉430071 邓迪大学土木工程系苏格兰邓迪DD14HN

抗滑桩是边坡深层抗滑最为有效的措施之一,以三峡库区边坡抗滑桩加固工程为背景,利用离心模型试验手段,模拟库区蓄水和水位循环变化条件下失稳边坡的抗滑桩加固机制。详细介绍相应的离心模型试验方法,通过对一系列自然边坡和不同桩间距... 详细信息

抗滑桩是边坡深层抗滑最为有效的措施之一,以三峡库区边坡抗滑桩加固工程为背景,利用离心模型试验手段,模拟库区蓄水和水位循环变化条件下失稳边坡的抗滑桩加固机制。详细介绍相应的离心模型试验方法,通过对一系列自然边坡和不同桩间距条件下的模型试验,获得库水位变化影响下的边坡变形、破坏模式和抗滑桩受力,探讨滑坡推力的分布以及不同桩间距条件下的抗滑桩-边坡相互作用机制。测试结果表明,受抗滑桩加固的边坡在水位升降作用下仍发生一定程度的变形并产生裂缝,随着抗滑桩的直接支挡和桩后土体由于不均匀位移产生土拱效应后,边坡变形逐渐得到较好的控制。在本试验条件下,随着桩间距的增大,边坡变形总体上表现为增大趋势,但抗滑桩的受力呈现出先增大后减小的抛物线型变化形态,在某一最适桩间距情况下抗滑桩的抗滑性能得到了最充分的发挥,而滑坡推力表现出复合三角形分布特征。该研究结果为桩土相互作用和库区边坡抗滑桩加固机制分析提供了直接的试验依据,对丰富抗滑桩设计理论和库区边坡的防灾减灾研究具有较为重要的意义。

关键词：边坡工程库区边坡库水位变化抗滑桩加固离心模型试验最适桩间距

r.izospher. micr.bial communities associated to r.se r.plant disease:links to plant gr.wth and r.ot metabolites

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Hor.icultur. r.sear.h 2020年第1期7卷 1031-1046页

作者： B.Yim A.Baumann G.Gr.newaldt-Stöcker.B.Liu L.Beer.ues S.Zühlke M.Sapp j.Nesme S.j.Sør.nsen K.Smalla T.Winkelmann Institute of Hor.icultur.l Pr.duction Systems Leibniz Universität Hannover30419 HannoverGermany julius Kühn-Institut(jKI) Institute for Epidemiology and Pathogen Diagnostics38104 BraunschweigGermany Institute of Phar.aceutical Biology Technische Universität Braunschweig38106 BraunschweigGermany Faculty of Chemistr. and Chemical Biology(CCB) Technische Universität Dortmund44227 DortmundGermany Cluster.of Excellence on Plant Sciences(CEPLAS) Institute for Population GeneticsHeinrich Heine University40225 DüsseldorfGermany Section of Micr.biology Department of BiologyUniversity of Copenhagen2100 CopenhagenDenmark

Gr.wth depr.ssion of r.sa plants at sites pr.viously used to cultivate the same or.closely r.lated species is a typical symptom of r.se r.plant disease(r.D).Cur.ently,limited infor.ation is available on the causes and the etiology of r.D compar.d to apple r.plant disease(Ar.).Thus,this study aimed at analyzing gr.wth char.cter.stics,r.ot mor.hology,and r.ot metabolites,as well as micr.bial communities in the r.izospher. of the susceptible r.otstock r.sa cor.mbifer.‘Laxa’gr.wn in r.D-affected soil fr.m two sites(Heidgr.ben and Sanger.ausen),either.untr.ated or.disinfected byγ-*** a gr.enhouse bioassay,plants developed significantly mor. biomass in theγ-ir.adiated than in the untr.ated soils of both *** plant metabolites detected in ***‘Laxa’r.ots wer. site-and *** aloesin was r.cor.ed in significantly higher.concentr.tions in untr.ated than inγ-ir.adiated soils fr.m Heidgr.ben,the concentr.tions of phenylalanine wer. significantly lower.in r.ots fr.m untr.ated soil of both *** micr.bial communities of 8-week-old plants wer. studied by sequencing of 16S r.NA,ITS,and cox gene fr.gments amplified fr.m total community *** by micr.scopic obser.ations,sequences affiliated to the bacter.al genus Str.ptomyces and the fungal genus Nectr.a wer. identified as potential causal agents of r.D in the soils *** r.lative abundance of oomycetes belonging to the genus Pythiogeton showed a negative cor.elation to the gr.wth of the ***,the r.D symptoms,the effects of soil tr.atments on the composition of the r.izospher. micr.bial community r.vealed str.king similar.ties to findings r.lated to Ar..

关键词： soil r.ots plant

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非恒定流驱动下床面形态变化特征

水科学进展 2021年第5期32卷 751-758页

作者：王乐 Alan j S Cuthber.son 张尚弘王永强华北电力大学水利与水电工程学院北京102206 School of Science and Engineer.ng University of DundeeDundee DD14HNUK 长江科学院水资源综合利用研究所湖北武汉430010

为深入认识非恒定流驱动下床面形态的演变规律及尺度变化趋势,采用水泵控制系统生成了一系列历时与洪峰流量不同的洪水过程来冲刷由粗沙组成的实验动床(中值粒径d 50=1.95 mm),研究中运用非恒定流的形态、非恒定性及水流做功参数来量化... 详细信息

为深入认识非恒定流驱动下床面形态的演变规律及尺度变化趋势,采用水泵控制系统生成了一系列历时与洪峰流量不同的洪水过程来冲刷由粗沙组成的实验动床(中值粒径d 50=1.95 mm),研究中运用非恒定流的形态、非恒定性及水流做功参数来量化洪水过程;统计分析河床高程数据得到床面形态的波长、波高及陡度。实验结果表明:在不同尺度的非恒定流洪水作用下,实验动床表面分别形成了沙垄、交错边滩以及介于两者之间的过渡型床面形态;洪水的非恒定性对床面形态尺度的影响最大,其次是水流做功参数,而非恒定流的形态影响较为微弱;在此基础上构建了用于描述非恒定流驱动条件与床面形态尺度响应的定量关系。

关键词：非恒定流洪水床面形态

成人人群全身Mr.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 Depar.ment of Diagnostic r.diology and Neur.r.diology University Medicine Greifswald

目的报道一般成人人群在进行全身Mr.像(WB-Mr.)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-Mr.。... 详细信息

目的报道一般成人人群在进行全身Mr.像(WB-Mr.)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-Mr.。此外,1129名参与者接受对比增强心脏Mr.检查,619名接受Mr.管成像检查,544名女性接受乳腺Mr.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-Mr.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Mr.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： Mr. 全身意外发现患病率管理

Sear.h for.hidden-char. tetr.quar. with str.ngeness in e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.

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Chinese Physics C 2023年第3期47卷 1-14页

作者：麦迪娜 M.N.Achasov P.Adlar.on M.Albr.cht r.Aliber.i A.Amor.so 安美儒安琪白羽 O.Bakina r.Baldini Fer.oli I.Balossino Y.Ban V.Batozskaya D.Becker.K.Begzsur.n N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi E.Bianco j.Bloms A.Bor.one I.Boyko r.A.Br.er. A.Br.eggemann 蔡浩蔡啸 A.Calcater.a 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅 S.K.Choi 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi r.E.de Boer.D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mor. 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egor.v 范玉兰方建房双世方文兴方易 r.Far.nelli L.Fava F.Feldbauer.G.Felici 封常青冯俊华 K Fischer.M.Fr.tsch C.Fr.tzsch 傅成栋高涵高原宁高扬 S.Gar.olino I.Gar.ia 葛潘婷葛振武耿聪 E.M.Ger.abeck A Gilman K.Goetzen 龚丽龚文煊 W.Gr.dl M.Gr.co 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.Har.is 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Her.ld 侯国一侯颖锐侯治龙胡海明 j.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl M.Ir.had j.jackson S.jaeger.S.janchiv E.jang j.H.jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤蒋沛成姜赛赛江晓山 Y.jiang 焦健斌焦铮金山金毅荆茂强 T.johansson S.Kabana N.Kalantar.Nayestanaki 康晓琳康晓珅 r.Kapper. M.Kavatsyuk 柯百谦 I.K.Keshk A.Khoukaz r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner.A.Kupsc W.Kühn j.j.Lane j.S.Lange P.Lar.n A.Lavania L.Lavezzi 雷天天雷祚弘 H.Leithoff M.Lellmann T.Lenz 李聪李翠李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.Li j.Q.Li 李静舒李井文李科 L.j Li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁浩梁昊梁勇飞梁羽铁廖广睿廖龙洲 j.Libby A.Limphir.t 林创新林德旭 T.Lin 刘北江刘成刘春秀 D.Liu 刘福虎刘芳刘峰 G.M.Liu H.Liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏卢泽辉罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggior. S.Maldaner.S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Mar.ello 孟召霞 j.G.Messchendor. G.Mezzadr. H.Miao 闵天觉 r.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Ner.ing I.B.Nikolaev 宁哲 S.Nisar.牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak 裴宇鹏 M.Pelizaeus 彭海平 K.Peter. 平加伦平荣刚 S.Plur. S.Pogodin V.Pr.sad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K Institute of High Ener.y Physics Beijing 100049China Beihang Univer.ity Beijing 100191China Beijing Institute of Petr.chemicalTechnology Beijing 102617China Bochum r.hr.Univer.ity D-44780 BochumGermany Car.egie Mellon Univer.ity PittsburghPennsylvania15213USA Centr.l China Nor.al Univer.ity Wuhan 430079China Centr.l South Univer.ity Changsha 410083China China Center.of AdvancedScience and Technology Beijing 100190China China Univer.ity of Geosciences Wuhan 430074China COMSATS Univer.ity Islamabad LahoreCampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Univer.ity Shanghai 200433China G.I.Budker.Institute of Nuclear.hysics SB r.S(BINP) Novosibirsk 630090Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany GuangxiNor.al Univer.ity Guilin 541004China Guangxi Univer.ity Nanning 530004China Hangzhou Nor.al Univer.ity Hangzhou 310036China Hebei Univer.ity Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Nor.alUniver.ity Xinxiang 453007China Henan Univer.ity of Science and Technology Luoyang 471003China Henan Univer.ity of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Nor.al Univer.ity Changsha 410081China Hunan Univer.ity Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana Univer.ity BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Labor.tor. Nazionali di Fr.scati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Labor.tor. Nazionali di Fr.scati University of PerugiaI-06100PerugiaItaly INFN Sezione di Fer.ar. INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Fer.ar. University of FerraraI-44122FerraraItaly Institute of Moder. Physics Lanzhou 730000People's Republic of China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DAricaChile jilin Univer.

We r.por. a sear.h for.a heavier.par.ner.of the r.cently obser.ed Z_(cs)(3985)^(-) state,denoted as Z_(cs)^('-),in the pr.cess e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.,based on e^(*)e^(-)collision data collected at the center.of-mass ener.ies of √s=4.661,4.682 and 4.699 GeV with the BESIII *** Z_(cs)^('-) is of inter.st as it is expected to be a candidate for.a hidden-char. and open-str.nge tetr.quar..A par.ial-r.constr.ction technique is used to isolate K^(+)r.coil-mass spectr.,which ar. pr.bed for.a potential contr.bution fr.m Z_(cs)^('-)→D_(s)^(∗−) D^(∗0 )+ *** find an excess of Z_(cs)^('-)→D_(s)^(*-)-D^(*0)(c.c.)candidates with a significance of 2.1o,after.consider.ng systematic uncer.ainties,at a mass of(4123.5±0.7_(sat)±4.7_(syst.))MeV/c^(2).As the data set is limited in size,the upper.limits ar. evaluated at the 90%confidence level on the pr.duct of the Bor. cr.ss sections(σ^(Bor.))and the br.nching fr.ction(B)of Z_(cs)^('-)→D_(s)^(*-)-D^(*0),under.differ.nt assumptions of the Z_(cs)^('-) mass fr.m 4.120 to 4.140 MeV and of the width fr.m 10 to 50 MeV at the thr.e center.of-mass *** upper.limits of σ^(Bor.).B ar. found to be at the level of O(1)pb at each *** data samples ar. needed to confir. the Z_(cs)^('-) state and clar.fy its natur. in the coming year..

关键词： electr.n-positr.n collision BESIl hadr.n spectr.scopy tetr.quar.

Obser.ations of the Cabibbo-Suppr.ssed decays Λ_(c)^(+)→nπ+π^(0),nπ^(+)π^(-)π^(+) and the Cabibbo-Favor.d decay Λ_(c)^(+)→nK^(-)π^(+)π^(+)

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Chinese Physics C 2023年第2期47卷 1-18页

作者：麦迪娜 M.N.Achasov P.Adlar.on M.Albr.cht r.Aliber.i A.Amor.so 安美儒安琪白羽 O.Bakina r.Baldini Fer.oli I.Balossino 班勇 V.Batozskaya D.Becker.K.Begzsur.n N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi E.Bianco j.Bloms A.Bor.one I.Boyko r.A.Br.er. A.Br.eggemann 蔡浩蔡啸 A.Calcater.a 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅 S.K.Choi 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi r.Ede Boer.D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mor. 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egor.v 范玉兰方建房双世方文兴方易 r.Far.nelli L.Fava F.Feldbauer.G.Felici 封常青冯俊华 K Fischer.M.Fr.tsch C.Fr.tzsch 傅成栋高涵高原宁高扬 S.Gar.olino I.Gar.ia 葛潘婷葛振武耿聪 E.M.Ger.abeck A Gilman K.Goetzen 龚丽龚文煊 W.Gr.dl M.Gr.co 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.Har.is 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Her.ld 侯国一侯颖锐侯治龙胡海明 j.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl M.Ir.had j.jackson S.jaeger.S.janchiv E.jang j.H.jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜赛赛江晓山 Y.jiang 焦健斌焦铮金山金毅荆茂强 T.johansson N.Kalantar.Nayestanaki 康晓珅 r.Kapper. M.Kavatsyuk 柯百谦 I.K.Keshk A.Khoukaz r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner.A.Kupsc W.Kühn j.j.Lane j.S.Lange P.Lar.n A.Lavania L.Lavezzi 雷祚弘 H.Leithoff M.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.Li j.Q.Li 李静舒李井文李科 L.j Li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 j.Libby A.Limphir.t 林创新林德旭 T.Lin 刘北江刘成刘春秀 D.Liu 刘福虎刘芳刘峰 G.M.Liu H.Liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggior. S.Maldaner.S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Mar.ello 孟召霞 j.G.Messchendor. G.Mezzadr. H.Miao 闵天觉 r.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Ner.ing I.B.Nikolaev 宁哲 S.Nisar.牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak P.Patter. M.Pelizaeus 彭海平 K.Peter. 平加伦平荣刚 S.Plur. S.Pogodin V.Pr.sad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.r.shid C.F Institute of High Ener.y Physics Beijing 100049China Beihang Univer.ity Beijing 100191China Beijing Institute of Petr.chemical Technology Beijing 102617China Bochum r.hr.Univer.ity D-44780 BochumGermany Car.egie Mellon Univer.ity PittsburghPennsylvania 15213USA Centr.l China Nor.al Univer.ity Wuhan 430079China Centr.l South Univer.ity Changsha 410083China China Center.of Advanced Science and Technology Beijing 100190China COMSATS Univer.ity Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Univer.ity Shanghai 200433China G.I.Budker.Institute of Nuclear.Physics SB r.S(BINP) Novosibirsk 630090Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany Guangxi Nor.al Univer.ity Guilin 541004China Guangxi Univer.ity Nanning 530004China Hangzhou Nor.al Univer.ity Hangzhou 310036China Hebei Univer.ity Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Nor.al Univer.ity Xinxiang 453007China Henan Univer.ity of Science and Technology Luoyang 471003China Henan Univer.ity of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Nor.al Univer.ity Changsha 410081China Hunan Univer.ity Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana Univer.ity BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati I-00044FrascatiItaly INFN Sezione di Per.gia I-06100PerugiaItaly Univer.ity of Per.gia I-06100PerugiaItaly INFN Sezione di Fer.ar. I-44122FerraraItaly Univer.ity of Fer.ar. I-44122FerraraItaly Institute of Moder. Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia jilin Univer.ity Changchun 130012China johannes Gutenber. Univer.ity of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for.Nuclear.r.sear.h 141980 DubnaMoscow regionRussia justus-Liebig-Univer.itaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou Un

Using electr.n-positr.n annihilation data samples cor.esponding to an integr.ted luminosity of 4.5 fb-1,collected by the BESⅢdetector.in the ener.y r.gion between 4599.53 MeV and 4698.82 MeV,we r.por. the fir.t obser.ations of the Cabibbo-suppr.ssed decaysΛ_(c)^(+)→nπ^(+)π^(0),Λ_(c)^(+)→nπ^(+)π^(-)π^(+),and the Cabibbo-favor.d decayΛ_(c)^(+)→nK^(-)π^(+)π^(+)with statistical significances of 7.9σ,7.8σ,and>10σ,*** br.nching fr.ctions of these decays ar. measur.d to be B(Λ_(c)^(+)→nπ^(+)π^(0))=(0.64±0.09±0.02)%,B(Λ_(c)^(+)→nπ^(+)π^(-)π^(+))=(0.45±0.07±0.03)%,and B(Λ_(c)^(+)→nK^(-)π^(+)π^(+))=(1.90±0.08±0.09)%,wher. the fir.t uncer.ainties ar. statistical and the second ar. *** find that the br.nching fr.ction of the decayΛ_(c)^(+)→nπ^(+)π^(0)is about one or.er.of magnitude higher.than that ofΛ_(c)^(+)→nπ^(+).

关键词： ∧_(c)^(+)bar.on Br.nching fr.ction BESⅢdetector

Study of BESⅢ tr.gger.efficiencies with the 2018 j/ψ data

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Chinese Physics C 2021年第2期45卷 52-59页

作者：麦迪娜 M.N.Achasov P.Adlar.on S.Ahmed M.Albr.cht r.Aliber.i A.Amor.so 安美儒安琪白旭红白羽 O.Bakina r.Baldini Fer.oli I.Balossino 班勇 K.Begzsur.n N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi j.Bloms A.Bor.one I.Boyko r.A.Br.er. 蔡浩蔡啸 A.Calcater.a 曹国富曹宁 S.A.Cetin 常劲帆常万玲 G.Chelkov 陈端友陈刚陈和生陈玛丽陈申见陈旭荣陈元柏陈卓俊成伟帅 G.Cibinetto F.Cossio 崔小非代洪亮戴鑫琛 A.Dbeyssi r.E.de Boer.D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mor. 丁勇董超董静董燎原董明义董翔杜书先范玉兰方建房双世方易 r.Far.nelli L.Fava F.Feldbauer.G.Felici 封常青 j.H.Feng M.Fr.tsch 傅成栋高雅高扬高原宁高勇贵 I.Gar.ia 葛潘婷耿聪 E.M.Ger.abeck A Gilman K.Goetzen L.Gong 龚文煊 W.Gr.dl M.Gr.co 谷立民顾旻皓顾珊顾运厅关春懿郭爱强郭立波郭如盼 Y.P.Guo A.Guskov 韩婷婷韩文颖郝喜庆 F.A.Har.is H Hüsken 何康林 F.H.Heinsius C.H.Heinz T.Held 衡月昆 C.Her.ld M.Himmelr.ich T.Holtmann 侯颖锐侯治龙胡海明 j.F.Hu 胡涛胡誉黄光顺黄麟钦黄性涛黄燕萍黄震 T.Hussain W. Ikegami Ander.son W.Imoehl M.Ir.had S.jaeger.S.janchiv 纪全姬清平季晓斌季筱璐姜侯兵江晓山焦健斌焦铮金山金毅 T.johansson N.Kalantar.Nayestanaki 康晓珅 r.Kapper. M.Kavatsyuk 柯百谦 I.K.Keshk A.Khoukaz P.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner.A.Kupsc M.G.Kur.h W.Kühn j.j.Lane j.S.Lange P.Lar.n A.Lavania L.Lavezzi 雷祚弘 H.Leithoff M.Lellmann T.Lenz 李翠李春花李澄李德民李飞李刚李慧李贺李海波李惠静李井文 j.Q.Li 李静舒李科李龙科李蕾李培荣栗帅迎李卫东李卫国李旭红李晓玲李紫源梁昊梁浩梁浩梁勇飞梁羽铁廖龙洲 j.Libby 林创新刘北江刘春秀 Institute of High Ener.y Physics G.I.Budker.Institute of Nuclear.Physics SB r.S (BINP) Also at the Novosibir.k State Univer.ity Zhejiang Univer.ity Helmholtz Institute Mainz Bochum r.hr.Univer.ity johannes Gutenber. Univer.ity of Mainz Xinyang Nor.al Univer.ity Lanzhou Univer.ity Sun Yat-Sen Univer.ity Univer.ity of Tur.n Univer.ity of Easter. Piedmont INFN Univer.ity of Muenster Wilhelm-Klemm-Str.9 State Key Labor.tor. of Par.icle Detection and Electr.nics joint Institute for.Nuclear.r.sear.h INFN Labor.tor. Nazionali di Fr.scati INFN Sezione di Fer.ar. Peking Univer.ity State Key Labor.tor. of Nuclear.Physics and Technology Peking University Institute of Physics and Technology Univer.ity of Science and Technology of China Car.egie Mellon Univer.ity Zhengzhou Univer.ity Univer.ity of jinan Univer.ity of Hawaii the Moscow Institute of Physics and Technology Centr.l China Nor.al Univer.ity Nanjing Nor.al Univer.ity Institute of Moder. Physics Hunan Univer.ity School of Physics and Electr.nics Hunan University Nanjing Univer.ity Liaoning Nor.al Univer.ity the Novosibir.k State Univer.ity Tsinghua Univer.ity Uppsala Univer.ity Univer.ity of Fer.ar. Univer.ity of Oxfor. Univer.ity of South China GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH Beihang Univer.ity Guangxi Univer.ity Indiana Univer.ity Liaoning Univer.ity Shandong Nor.al Univer.ity Fudan Univer.ity Key Labor.tor. of Nuclear.Physics and Ion-beam Application (MOE) and Institute of Moder. Physics Shandong Univer.ity Henan Nor.al Univer.ity Univer.ity of Minnesota Ankar. Univer.ity Istanbul Bilgi Univer.ity Uludag Univer.ity Near.East Univer.ity Goethe Univer.ity Fr.nkfur. Southeast Univer.ity Wuhan Univer.ity Italy University of Eastern Piedmont Huangshan College Univer.ity of Muenster Univer.ity of Manchester Shanxi Nor.al Univer.ity justus-Liebig-Univer.itaet Giessen Ⅱ.Physikalisches Institut Istanbul Ar.l Univer.ity Indian Institute of Technology Madr.s Qufu Nor.al Univer.ity Key Labor.tor. of Nuclear.Physics and Ion-beam Application (MOE) and Instit

Using a dedicated data sample taken in 2018 on the j/ψ peak, we per.or. a detailed study of the tr.gger.efficiencies of the BESⅢ detector. The efficiencies ar. deter.ined fr.m thr.e r.pr.sentative physics pr.cesses,namely Bhabha scatter.ng, dimuon pr.duction and gener.c hadr.nic events with char.ed par.icles. The combined efficiency of all active tr.gger. appr.aches 100% in most cases, with uncer.ainties small enough not to affect most physics analyses.

关键词：

颅脑损伤周围区域脑血流变化与感觉运动障碍有关(英文)

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中华神经外科疾病研究杂志 2010年第2期9卷 141-141页

作者： Immonen r.Heikkinen T Thtivaar. L Nur.i A Stenius TK Puolivli j Tuinstr. T Phinney AL Van Vliet B Yr.nheikki j Gr.hn O

In the tr.umatic br.in injur.(TBI) the initial impact causes both pr.mar. injur.,and launches secondar. injur. *** consequence,and a factor.that may contr.bute to these secondar. changes and functional outcome,is alter.d *** r.lative cer.br.l blood volume(CBV) changes in r.t br.in after.sever. contr.lled cor.ical impact injur. wer. char.cter.zed to assess their.inter.elations with motor.function *** r.sonance imaging(Mr.) was per.or.ed 1,2,4 h,and 1,2,3,4,7,and 14 days after.TBI to quantify CBV and water.*** test was conducted befor.,and 2,7,and 14 days after.the *** found distinct tempor.l pr.file of CBV in the per.lesional ar.a,hippocampus,and in the pr.mar. *** all r.gions,the fir.t r.sponse was dr.p of *** CBV was r.duced for.over.4 days ther.after.gr.dually *** the initial dr.p,the hippocampal CBV was incr.ased for.2 *** demonstr.ted sever.ly impair.d motor.functions 2 days after.injur.(33% decr.ase),which then slowly r.cover.d in 2 *** r.cover. par.llelled the r.cover. of per.focal *** Mr. can detect cer.br.vascular.pathophysiology after.TBI in the vulner.ble per.lesional ar.a,which seems to potentially associate with time cour.e of sensor.-motor.deficit.

关键词：神经外科疾病临床医学摘要

Obser.ation 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.Albr.cht M.Alekseev A.Amor.so F.F.An Q.An Y.Bai O.Bakina r.Baldini Fer.oli Y.Ban K.Begzsur.n D.W.Bennett j.V.Bennett N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi I.Boyko r.A.Br.er. H.Cai X.Cai A.Calcater.a 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 Mor. 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.Far.nelli L.Fava F.Feldbauer.G.Felici C.Q.Feng M.Fr.tsch C.D.Fu Y.Fu Q.Gao X.L.Gao Y.N.Gao Y.G.Gao Z.Gao B.Gar.llon I.Gar.ia A.Gilman K.Goetzen L.Gong W.X.Gong W.Gr.dl M.Gr.co 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.Har.is 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 Ander.son W.Imoehl M.Ir.had 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.Kur.h W.Kühn j.S.Lange P.Lar.n 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.Maggior. S.Maldaner.Q.A.Malik A.Mangoni Y.j.Mao Z.P.Mao S.Mar.ello Z.X.Meng j.G.Messchendor. G.Mezzadr. j.Min T.j.Min r.E.Mitchell X.H.Mo Y Institute of High Ener.y Physics Beijing 100049China Beihang Univer.ity Beijing 100191China Beijing Institute of Petr.chemical Technology Beijing 102617China Bochum r.hr.Univer.ity D-44780 BochumGermany Car.egie Mellon Univer.ity PittsburghPennsylvania 15213USA Centr.l China Nor.al Univer.ity Wuhan 430079China China Center.of Advanced Science and Technology Beijing 100190China COMSATS Univer.ity Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Univer.ity Shanghai 200443China G.I.Budker.Institute of Nuclear.Physics SB r.S(BINP) Novosibirsk 630090Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany Guangxi Nor.al Univer.ity Guilin 541004China Guangxi Univer.ity Nanning 530004China Hangzhou Nor.al Univer.ity Hangzhou 310036China Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Nor.al Univer.ity Xinxiang 453007China Henan Univer.ity of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Nor.al Univer.ity Changsha 410081China Hunan Univer.ity Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana Univer.ity BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati I-00044FrascatiItaly INFN Sezione di Fer.ar. I-44122FerraraItaly Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia johannes Gutenber. Univer.ity of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for.Nuclear.r.sear.h 141980 DubnaMoscow regionRussia justus-Liebig-Univer.itaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-CAr. University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou Univer.ity Lanzhou 730000China Liaoning Univer.ity Shenyang 110036China Nanjing Nor.al Univer.ity Nanjing 210023China Nanjing Univer.ity Nanjing 210093China Nankai Univer.ity Tianjin 300071China Peking Univer.ity Beijing 100871China Shandong Univer.ity Jinan 250100China Shanghai

Studies of e^+e~→D_s^+■^((*)0)K^-and the P-wave char.ed-str.nge mesons ar. per.or.ed based on an e^+e^-collision data sample cor.esponding to an integr.ted luminosity of 567 pb^(-1) collected with the BESIII detector.at s^(1/2)=4.600 GeV. The pr.cesses of e^+e^-→D_s^+■^(*0)K^- and D_s^+■~0K^- ar. obser.ed for.the fir.t time and ar. found to be dominated by the modes D_s^+D_(s1)(2536)^-and D_s^+D_(s2)~*(2573)^-, r.spectively. The Bor. cr.ss sections ar. measur.d 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 pr.ducts of Bor. cr.ss section and the decay br.nching fr.ction ar. measur.d 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 ar. measur.d 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-par.ty of the D_(s2)~*(2573)^-meson is deter.ined to be j^p= 2^+. In addition, the pr.cesses e^+e^-→D_s^+■^((*)0)K^-ar. sear.hed for.using the data samples taken at four.two) center.of-mass ener.ies between 4.416(4.527) and 4.575 GeV, and upper.limits at the 90% confidence level on the cr.ss sections ar. deter.ined.

关键词： cr.ss section P-wave D_s mesons r.sonance par.meter. spin-par.ty BESIII