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Collective Bands in Neutron-Rich ^(104)Mo Nucleus

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Chinese Physics Letters 2001年第1期18卷 24-26页

作者： YANG Li-Ming ZHU Sheng-Jiang LI Ke J.H.Hamilton A.V.Ramayya J.K.Hwang x.q.zhang ZHU Ling-Yan GAN Cui-Yun M.Sakhaee LONG Gui-Lu xU Rui-qing HANG Zheng JIANG Zhuo JON Myong-Gil W.C.Ma B.R.S.Babu J.Komicki E.F.Jones J.D.Cole R.Aryaeinejad M.W.Drigert I.Y.Lee J.O.Rasmussen M.A.Stoyer M.Ter-Akopian A.V.Daniel Department of Physics Tsinghua UniversityBeijing 100084 Department of Physics Vanderbilt UniversityNashvilleTN 37235USA Department of Physics Mississippi State UniversityMS 39762USA Idaho National Engineering Laboratory Idaho FallsID 83415USA Lawrence Berkeley National Laboratory BerkeleyCA 94720USA Lawrence Livermore National Laboratory LivermoreCA 94550USA Joint Institute for Nuclear Research Dubna141980Russia

Levels in the neutron-rich ^(104)Mo nucleus have been investigated by observing promptγ-rays from the spontaneous fission of 252Cf with the Gammasphere detector *** ground-state band,the one-phonon and the two-phononγ-vibrational bands as well as a quasiparticle band have been confirmed and expanded with spin up to 14ħ.Other two side bands probably built on new quasiparticle states are *** possible configurations for the quasiparticle bands are *** of the quasiparticle bands show larger moments of inertia and may have pair-free *** levels of the ground-state band,the one-phononγ-band and the two-phononγ-band calculated from a general collective model are in close agreement with the experimental data.

关键词： bands phonon quasi

Octupole Deformation and Signature Inversion in ^(145)Ba

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Chinese Physics Letters 1999年第10期16卷 715-717页

作者： ZHU Sheng-jiang M.Sakhaee J.H.Hamilton A.V.Ramayya GAN Cui-yun ZHU Ling-yan YANG Li-ming LONG Gui-lu PAU San-li B.R.S.Babu J.K.Hwang W.C.Ma J.Komicki x.q.zhang E.F.Jones J.D.Cole R.Aryaeinejad M.W.Drigert J.O.Rasmussen M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee Yu.Ts.Oganessian M.Ter-Akopian A.V.Daniel Department of Physics Tsinghua UniversityBeijing 100084 Department of Physics Vanderbilt UniversityNashvilleTN 37235USA Department of Physics Mississippi State UniversityMS 39762USA Idaho National Engineering Laboratory Idaho FallsID 83415USA Lawrence Berkeley Laboratory BerkeleyCA 94720USA Joint Institute for Nuclear Research Dubna 141980Russia

High spin states in neutron-rich odd-N ^(145)Ba nucleus have been investigated from study of promptγ-rays in spontaneous fission of^(252)*** alternating parity bands are identified indicating octupole deformation with simplex quantum number s=-*** ground state band shows signature splitting and inversion at low *** collective band structures exhibit the competition and co-existence between symmetric and asymmetric shapes.

关键词： Inversion collective signature

Investigation of the transition between sawteeth and Mirnov oscillations in the J-TExT Ohmic plasma

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Investigation of the transition between sawteeth and Mirnov ...

Evaluation of Hemarthria compressavarieties at a frost-prone site in up-land areas of South-west China

第十五届全国等离子体科学技术会议

作者： x.D.Feng 1,2,G.Zhuang 1,2,x.q.zhang 1,2 1 State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology,Wuhan 430074,China 2Key Laboratory of Fusion and Advanced Electromagnetic Technology of Ministry of Education, Wuhan 430074,China

Both sawteeth and Mimov oscillations in an Ohmic limiter plasma have been observed by the soft x-ray emission detector arrays(SxRs) and a set of 2-D magnetic sensors(MS) in the J-TExT tokamak(Formerly TExT-U Tokamak,R=1.05m, a=0.27m,B=3T,and l=350kA).The transition between sawteeth and Mimov oscillations have been clearly shown in the traces of SxRs and MS signals under

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Evaluation of Hemarthria compressavarieties at a frost-prone...

利用六倍体小黑麦×缺失四体小麦的花药培养将黑麦的抗病性快速导入普通小麦中

中国—澳大利亚可持续性草地管理研讨会

作者： CH.H.Yang~(1 2) J.G.Han~(1*) L.ZH.Chen~2 SH.M.Su~2 x.q.zhang~2 1 Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 2 Department of Grassland Science Animal Science and Technological College Sichuan Agricultural University Ya’an China

＜正＞Hemarthria compressa accessions ’Chonggao’,’Guangyi’,’Yaan’,H031 and H042 were planted on a up-land areas of Tianquan,Sichuan Province,south-west china in 2006 using stem pieces as propagules and irrigation to promote *** weedy conditions the coarse-stemmed lines established in 8 months,whereas the others two fine-stemmed lines had to be replanted with turfs to obtain satisfactory establishment which took more than 1 *** 2006-2007 there were no damaging frosts and all lines had high annual dry matter（DM） yields of up to 25 and 23 t/ha under mowing heights of 5 and 10 cm *** to -4.1℃in winter 2007 severely damaged ’Chonggao’ and ’Guangyi’ irrespective of mowing height and their 2007-2008 yields were reduced to 13-16t DM/*** frosts had only minor effects on H031 and H042 and their yields remained high. ’Yaan’rated intermediate in response to 2007 *** winter 2008 ’Chonggao’,’Guangyi’were eliminated by frosts,whereas H031 and H042 were severely damaged by frosts under 5 cm mowing but were little affected under 10 cm mowing *** none of the five Hemarthrias was completely winter-hardy,the results suggested that ’Yaan’ could be grown at frost-prone sites if close grazing was avoided.

关键词： Hemarthria compressa cut height winter hardiness summer production frost damage plant establishment vegetative propagation

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国外作物育种 2001年第3期20卷 45-45页

作者： x.q.zhang

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小麦部分同源组5和6分子标记的物理定位

国外作物育种 2001年第4期20卷 12-12页

作者：向平 x.q.zhang 等

超声剪切波弹性频散成像对于慢性肝脏疾病的鉴别价值

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国际医学放射学杂志 2023年第1期46卷 109-109页

作者： x.q.zhang R.q.Zheng J.Y.Jin J.F.Wang T.zhang J.Zeng 袁园

摘要二维(2D)剪切波弹性成像(SWE)的黏度相关参数——频散斜率(DS)对于肝脏病变分期的优势尚不明确。目的评估DS作为辅助指标是否能提高对肝脏坏死性炎症、纤

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Reducing the anisotropy of a Brazilian disc generated in a bonded-particle model

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Acta Mechanica Sinica 2018年第4期34卷 716-727页

作者： q.zhang x.P.zhang P.q.Ji The Key Laboratory of Safety for Geotechnical and Structural Engineering of Hubei Province School of Civil EngineeringWuhan University

The Brazilian test is a widely used method for determining the tensile strength of rocks and for calibrating parameters in bondedparticle models（BPMs）. In previous studies, the Brazilian disc has typically been trimmed from a compacted rectangular specimen. The present study shows that different tensile strength values are obtained depending on the compressive loading direction. Several measures are proposed to reduce the anisotropy of the disc. The results reveal that the anisotropy of the disc is significantly influenced by the compactibility of the specimen from which it is trimmed. A new method is proposed in which the Brazilian disc is directly generated with a particle boundary, effectively reducing the anisotropy. The stiffness（particle and bond） and strength（bond） of the boundary are set at less than and greater than those of the disc assembly, respectively,which significantly decreases the stress concentration at the boundary contacts and prevents breakage of the boundary particle bonds. This leads to a significant reduction in the anisotropy of the disc and the discreteness of the tensile strength. This method is more suitable for carrying out a realistic Brazilian test for homogeneous rock-like material in the BPM.

关键词： Bonded-particle model Brazilian disc Anisotropy Compactibility Particle boundary

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A new model for the expansion tube considering the stress coupling:Theory,experiments and simulations

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Defence Technology（防务技术） 2022年第7期18卷 1190-1204页

作者： M.Z.Wu x.W.zhang q.M.zhang State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyHaidian DistrictBeijing10081China

Based on the two-arc profile assumption,the expansion deformation and energy absorption of circular tubes compressed by conical-cylindrical dies were ***,the deformation of the two arcs was analyzed independently and an improved model denoted as Model-I was ***,by further involving the coupling between the bending moment and membrane forces,a more elaborate model,i.e.,Model-II was ***,experiments and simulations were conducted to verify the models,which show that,compared with previous theoretical models,Model-II could not only capture the prominent features of the deformation,but also improve the prediction accuracy of the steady driving force *** means of this model,it was found that the critical semi-conical angle,which makes the driving force minimum,increases with the increase of the friction coefficient,expansion ratio as well as the radius/thickness ratio of the ***,the energy dissipation due to stretching is always greater than that of bending,while the friction dissipation can account for the largest proportion at small semi-conical angle or large friction *** a certain friction and die conditions,the specific energy absorption of expanded tubes can be much higher than that under progressive collapse mode.

关键词： Expansion Circular tube Stress coupling Strain hardening Energy absorption

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