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Enhanced helium.ion irradiation tolerance in a f.-Co-Ni-Cr-Al-ti hig.-entropy alloy with L12 nanoparticles

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j.urnal of.m.terials science & technolog. 2023年第12期143卷 169-177页

作者： Y.L.Zhao f.L.m.ng.t.Yang.j.H.Luan s.f.Liu g.m.Yeli W.t.Lin W.H.Liu X.j.Liu C.t.Liu j.j.Kai school of.m.terials science and Eng.neering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China school of.m.terials science and Eng.neering Southern University of Science and TechnologyShenzhen 518055China Departm.nt of.m.terials science and Eng.neering Mechanical Behavior Division of Shenyang National Laboratory for Materials ScienceCity University of Hong KongHong KongChina Departm.nt of.m.chanical Eng.neering City University of Hong KongHong KongChina Institute of.Nuclear&New Energ. technolog. Tsinghua UniversityBeijing 100084China

L12-streng.hened hig. entropy alloys(HEAs)with excellent room.and hig.-tem.erature m.chanical prop-erties have been proposed as prom.sing.candidates as structural m.terials f.r advanced nuclear ***,knowledg. about their radiation response is f.irly *** the present work,a novel HEA with a hig. density of.L12 nanoparticles was irradiated with He ion at 500°*** electron m.croscope(tEm.and atom.probe tom.g.aphy(APt)were em.loyed to study the evolution of.m.-crostructural stability and radiation-induced *** to the sing.e-phase f.CoNiCr HEA,the m.in m.crostructural f.atures were num.rous larg. f.ulted dislocation loops and helium.*** the irradiation resistance of.the present L12-streng.hened HEA is m.ch im.roved in term. of.reduced bubble size,which could be attributed to the considerable He trapping.ef.iciency of.the coherent pre-cipitate/m.trix interf.ce and the enhanced capability of.the interf.ce f.r dam.g. elim.nation when the m.trix channel width is *** analysis revealed that an inverse-Kirkendall-m.chanism.dom.nated radiation-induced seg.eg.tion(RIs)occurs around bubbles,where a sig.if.cant Co enrichm.nt and Ni de-pletion can be clearly *** addition,the com.eting.dynam.cs of.ballistic m.xing.and elem.ntal clustering.that raised f.om.the irradiation-enhanced dif.usion in a hig.ly supersaturated m.trix,along.with the low precipitation nucleation barrier due to the sm.ll lattice m.sf.t,lead to a dynam.cal pre-cipitation dissolution and re-precipitation appears under *** a prom.sing.phenom.non is expected to prom.te a potential self.healing.ef.ect and could in turn provide a sustainable irradiation tolerance over the operational lif.tim. of.a reactor.

关键词： L12 nanoparticles Hig.-entropy alloy Helium.bubble Phase stability Radiation-induced seg.eg.tion

ICRf.Heated Long.Pulse Plasm. Discharg.s in LHD

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Plasm. science and technolog. 2006年第1期8卷 28-32页

作者： R. KUm.ZAWA t. sEKI t. m.tOH K. sAItO t. WAtARI Y. NAKAm.RA m. sAKAm.tO t. WAtANABE s. KUBO t. sHIm.ZUm. Y. YOsHIm.RA H. Ig.m. Y. tAKEIRI Y. OKA K. tsUm.RI m. OsAKABE K. IKEDA K. NAg.OKA O. KANEKO j. m.YAZAWA s. m.RItA K. NARIHARA m. sHOj. s. m.sUZAKI m. g.tO t. m.RIsAKI B. j. PEtERsON K. sAtO t. tOKUZAWA N. AsHIKAWA K. NIsHIm.RA H. f.NABA H. CHIKARAIsHI t. NOtAKE Y. tORII H. OKADA m. ICHIm.RA H. HIg.KI Y. tAKAsE H. KAsAHARA f. sHIm.O g.NOm.RA C.tAKAHAsHI m.YOKOtA A. KAtO 赵燕平 j. s. YOON j. g. KWAK H. YAm.DA K. KAWAHAtA N. OHYABU K. IDA Y. NAg.YAm. N. NODA A. KOm.RI s. sUDO O. m.tOj.m. National Institute f.r f.sion science Toki Japan Kyusyu University Kasuga Japan Nag.ya University Faculty of Engineering Nagoya Japan Kyoto University Institute of Advanced Energy Uji Japan tsukuba University Plasma Research Center Tsukuba Japan tokyo University Graduate School of Frontier Sciences Tokyo Japan Institute of.Plasm. Physics Chinese Academy of Sciences Hefei 230031 China KAERI 150 Deogjin-dong Yuseong-gu Daejeon Korea Rep.

A long.pulse plasm. discharg. f.r m.re than 30 m.n. was achieved on the Larg. Helical Device （LHD）. A plasm. of.ne = 0.8 × 10^19 m.-3 and t10 = 2.0 keV was sustained with PICH = 0.52 m., PECH = 0.1 m. and averag.d PNBI = 0.067 m.. total inj.cted heating.energ. was 1.3 g.j. which was a quarter of.the prepared Rf.heating.energ.. One of.the keys to the success of.the experim.nt was a dispersion of.the local plasm. heat load to divertors, accom.lished by shif.ing.the m.g.etic axis inward and outward.

关键词： helical/stellarator conf.g.ration ICRf.heating steady state operation

在马拉维利隆圭城区发展社会-经济指标监测对结核病服务的利用程度

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国际结核病与肺部疾病杂志 2007年第1期2卷 1-6页

作者： B. Nhlem. sim.aka t. Benson f. m. L. salaniponi s. j. theobald s. B. squire j. R. Kem. 贺晓新（译）杨枕旦（校）张立兴（审） Research f.r Equity and Com.unity Health trust Lilongwe Malawi t International f.od Policy Research Institute Washington DC USA National tB Control Prog.am.e Lilongwe Malawi Liverpool school of.tropical m.dicine Liverpool Liverpool School of Tropical Medicine Liverpool UK EQUI-tB Knowledg. Prog.am.e Liverpool School of Tropical Medicine Liverpool UK 不详

目的:为马拉维国家结核病控制规划(NtP)发展对局部地区适用的贫穷测量指标,通过建立现有结核病人的社会-经济学结构图,以评价不同社会-经济学群组对结核病服务的利用程度。设计:通过对1998年马拉维综合家庭调查的数据进行回归分析,建立... 详细信息

目的:为马拉维国家结核病控制规划(NtP)发展对局部地区适用的贫穷测量指标,通过建立现有结核病人的社会-经济学结构图,以评价不同社会-经济学群组对结核病服务的利用程度。设计:通过对1998年马拉维综合家庭调查的数据进行回归分析,建立关于贫穷的定量测量替代指标。通过对利隆圭城区贫民区和非贫民区进行关于贫穷的定量评价,以建立社会-经济学状态的关键指标。采用定量和定性指标对参与横断面研究的179名结核病人进行社会-经济学状态的评价。结果:贫穷的替代测量指标和定性指标显示了相似的对病人贫穷状态评价的能力。利用定量和定性指标对病人进行贫穷评价的贫穷率分别是78%和70%。地理分析显示60%的病人来自非贫民区,只有15%(26/139)来自贫民区。结论:本研究建立了利用贫穷替代测量指标和定性指标监测结核病服务利用可及性的策略。这对于发展循证的贫民优先的公平结核病服务而言,是关键的第一步。

关键词：利用途径结核病社会-经济学替代测量指标

甘露糖结合凝集素(m.L)基因多态性与中国汉族肺结核易感性的研究

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国际结核病与肺部疾病杂志 2007年第1期2卷 49-54页

作者： W. Liu f. Zhang.Z-t. Xin Q-m. Zhao X-m. Wu P-H. Zhang.s. de Vlas j. H. Richardus j. D. f. Habbem. H. Yang.W-C. Cao 张宗德（译）屠德华（校）张立兴（审） Beij.ng.Institute of.m.crobiolog. and Epidem.olog. State Key Laboratory of Pathogen and Biosecurity Beijing Departm.nt of.Biochem.stry Beijing Institute of Basic Medical Sciences Beijing China Departm.nt of.Public Health Erasmus Medical Centre. University Medical Center Rotterdam The Netherlands 不详

背景:m.L基因据认为在人类抗结核(tB)感染天然免疫应答中发挥作用。目的:探讨m.L基因多态性与中国汉族人群结核感染关联的可能性。设计:共有152名男性肺结核病人和293名健康男性对照纳入本研究。联合应用引物序列特异性PCR(PCR-ssP)和... 详细信息

背景:m.L基因据认为在人类抗结核(tB)感染天然免疫应答中发挥作用。目的:探讨m.L基因多态性与中国汉族人群结核感染关联的可能性。设计:共有152名男性肺结核病人和293名健康男性对照纳入本研究。联合应用引物序列特异性PCR(PCR-ssP)和序列特异性寡核苷酸探针杂交(PCR-ssOP)方法对m.L基因六个单核苷酸多态性(sNPs)位点(A/B,A/C,A/O,H/L,Y/X和P/Q)进行基因型或单倍体型在病例组和对照组的分布进行比较,并进行非条件log.stic回归分析。结果:当单独考虑时,5个位点的基因型和单倍体型与发病均无显著相关。然而,当重新分组后,和YA组相比,编码低水平m.L的XB单倍体组在病例组中有很高的出现频率(OR=1.57,95%CI:1.02-2.41, Pm.L多态性和肺结核之间的关联没有观察到令人信服的证据。

关键词：结核病甘露糖结合凝集素单倍型病例对照研究

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the World stress m.p

Episodes 2007年第3期30卷 197-201页

作者： Heidbach O. f.chs K. m.ller B. Wenzel f. Reinecker j. ting.y m. sperner B. g.ophysical Institute Karslruhe University Hertzstr. 16 76187 Karlsruhe Germany Heidelberg.Academ. of.sciences and Hum.nities Karlst. 4 69117 Heidelberg Germany Institute of.g.osciences University of Tübingen Sigwartstrasse 10 72076 Tübingen Germany school of.Earth and Environm.ntal sciences University of Adelaide DP313 Mawson Building Adelaide SA 5005 Australia g.olog.cal Institute TU Bergakademie Freiberg Bernhard-von-Cotta-Str. 2 09599 Freiberg Germany

Knowledg. of.the stress f.eld in the Earth＇s crust is a key issue f.r the understanding.of.g.odynam.c processes, seism.c hazard assessm.nt, and stability of.underg.ound opening. such as waste disposals, tunnels, m.nes or wells, and reservoir m.nag.m.nt. the World stress m.p proj.ct is a collaborative proj.ct of.academ.a, industry and g.vernm.ntal org.nizations that aim. to understand the states and sources of.tectonic stresses in the Earth＇s crust. We present the World stress m.p at 1：46,000,000 scale as a result of.m.re than two decades of.international collaboration. the m.p reveals that the f.rst-order pattern of.stress is of.plate-wide scale, indi- cating.that plate boundary f.rces are the m.j.r control of.the stress orientations and the tectonic reg.m..

关键词：世界应力地图合作计划政府组织构造

Ef.ect of.laser shock processing.on erosive resistance of.6061-t6 alum.num

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transactions of.Nonf.rrous m.tals society of.China 2016年第6期26卷 1522-1530页

作者： j.IBARRA E.RODRíg.EZ O.j.m.NEZ g.g.m.Z-ROsAs m.f.OREs j.VERDUZCO j.CHáVEZ Universidad de g.adalaj.ra Departamento de Ingeniería de Proyectos Universidad de g.adalaj.ra Departamento de Física Centro Universitario de Ciencias Exactas e Ingenierías

Application of.laser shock processing.（LsP） on 6061-t6 alum.num.was m.de in order to evaluate its response to the erosive wear by silica sand. Im.act ang.es of.15° , 30° , 60° and 90° were tested, two particle speeds （37 and 58 m.s） and two LsP irradiation conditions were used. Erosion m.rks were characterized by 3D prof.lom.try and sEm.analysis was conducted to identif. the erosion m.chanism. f.r each tested ang.e. the results showed a m.xim.m.erosive wear at low im.act ang.es （ductile type behavior）. Erosion streng.h and the erosion m.chanism. were not af.ected by the application of.LsP and they were attributed to the hig. strain rate of.the erosion phenom.na. A f.w dif.erences encountered on the erosion plots were explained on the basis of.the surf.ce roug.ness lef. by the LsP process. the m.xim.m.m.ss loss and the m.xim.m.erosion penetration happened in dif.erent im.act ang.es （15° and 30° , respectively）. f.nally, a well-def.ned erosion m.chanism.transition was observed, f.om.cutting.action at low im.act ang.e, to crater f.rm.tion at 90° of.incidence.

关键词： 6061-t6 alum.num erosive wear laser shock processing

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比较儿童自发性气胸急诊手术和延期手术

世界核心医学期刊文摘（儿科学分册） 2005年第6期1卷 49-50页

作者： Qureshi f. g. sandulache V. C. Richardson W. D. j. Hackam.李丹 Division of.Pediatric surg.ry Children’s Hosp. Pittsburgh Sch. M. University of Pittsburgh Pittsburgh PA 15213 United States

Controversy exists reg.rding.the tim.ng.of.surg.ry f.r spontaneous pneum.thorax (sP), which can be perf.rm.d either af.er the f.rst developm.nt of.pneum.thorax or af.er a recurrent spontaneous pneum.thorax has occurred. treatm.nt af.er recurrence is of.en adopted because of.the purported low recurrence of.sP treated nonoperatively and the historical m.rbidity of.open surg.ry. However, the ef.ectiveness of.VAts (to videoassisted bullectom. and pleurodesis) has raised the possibility of.perf.rm.ng.prim.ry VAts (PV) in all patients. the authors theref.re hypothesized that PV is saf. and ef.ective f.r sP and soug.t to perf.rm.a cost-benef.t analysis of.PV vs secondary VAts (sV). Af.er institutional review board approval, consecu tive patients with sP (1991-2003) and no com.rbidities were retrospectively divided into PV vs sV. Dem.g.aphics, recurrent pneum.thorax af.er VAts, leng.h of.stay, and costs were com.ared by student’s t test/χ2. the predicted increm.ntal cost of.PV was (cost of.PV) -{[cost of.nonoperative treatm.nt ×(1 -recurrence rate)] +cost of.sV ×recurrence rate}. Data are m.ans ±sEm. there were 54 spontaneous pneum.thoraces in 43 patients (11 bilateral), of.whom.3 were excluded because of.open thoracotom.. Of.51 pneum.thoraces, nonoperative treatm.nt was attem.ted in 37, of.whom.20 recurred and thus required sV. Prim.ry VAts was perf.rm.d in 14. Both g.oups had sim.lar ag., sex, weig.t, heig.t, adm.ssion heart rate, and room.air oxyg.n saturation. total treatm.nt leng.h of.stay was sig.if.cantly shorter f.r PV vs sV (7.1 ±0.96 vs 10.5 ±1.2, P =.04). However, m.rbidity f.om.recurrent pneum.thorax af.er VAts occurredm.re f.equently af.er PV than sV (4/14 vs 0/20 P sed on the observed recurrence rate of.54%, perf.rm.ng.PV on all patients with sP would increase cost by ＄4010 per patient and require a recurrence rate of.72%or m.re to f.nancially j.stif. this approach. Contrary to the hypothesis, the increased m.rbidity and cost do not j.stif. a strateg.

关键词：急诊手术自发性气胸肺大泡切除术复发率胸膜固定术开胸术成本效益分析氧饱和度人口统计学于非

Phase im.g.ng.of.irradiated f.ils at the Om.g. EP f.cility using.phase-stepping.X-ray talbot–Lau def.ectom.try

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Hig. Power Laser science and Eng.neering 2023年第4期11卷 45-54页

作者： g.Pérez-Callej. V.Bouf.etier L.Ceurvorst t.g.udal s.R.Klein D.svyatskiy m.Holec P.Perez-m.rtin K.f.lk A.Casner t.E.Weber g.Kag.n m.P.Valdivia Departam.nto de f.sica teórica Atóm.ca yÓptica Universidad de ValladolidValladolidSpain Universitéde Bordeaux-CNRs-CEA Centre Lasers Intenses et Applications(CELIA)UMR 5107TalenceFrance European Xf.L g.bH SchenefeldGermany Laboratory f.r Laser Energ.tics RochesterNew YorkUSA CEA-DAm DIFArpajonFrance University of.m.chig.n Ann ArborMichiganUSA Los Alam.s National Laboratory Los AlamosNew MexicoUSA Lawrence Liverm.re National Laboratory LivermoreCaliforniaUSA Helm.oltz-Zentrum.Dresden-Rossendorf DresdenGermany technische Universität Dresden DresdenGermany Institute of.Physics of.the AsCR PragueCzech Republic CEA-CEstA CS 60001Le Barp CedexFrance Blackett Laboratory Imperial College LondonLondonUK Departm.nt of.Astrophysics and Astronom. The Johns Hopkins UniversityBaltimoreMarylandUSA Center f.r Energ. Research University of California San DiegoSan DiegoCaliforniaUSA

Diag.osing.the evolution of.laser-g.nerated hig. energ. density(HED)system. is f.ndam.ntal to develop a correct understanding.of.the behavior of.m.tter under extrem. ***–Lau interf.rom.try constitutes a prom.sing.tool,since it perm.ts sim.ltaneous sing.e-shot X-ray radiog.aphy and phase-contrast im.g.ng.of.dense *** present the results of.an experim.nt at Om.g. EP that aim. to probe the ablation f.ont of.a laser-irradiated f.il using.a talbot–Lau X-ray interf.rom.ter.A polystyrene(CH)f.il was irradiated by a laser of.133 j.1 ns and probed with 8 keV laser-produced backlig.ter radiation f.om.Cu f.ils driven by a short-pulse laser(153 j.11 ps).the ablation f.ont interf.rog.am. were processed in com.ination with a set of.ref.rence im.g.s obtained ex situ using.*** m.nag.d to obtain attenuation and phase-shif. im.g.s of.a laser-irradiated f.il f.r electron densities above 1022 cm.*** results showcase the capabilities of.talbot–Lau X-ray diag.ostic m.thods to diag.ose HED laser-g.nerated plasm.s throug. hig.-resolution im.g.ng.

关键词： def.ectom.try Om.g. EP phase-contrast im.g.ng talbot-Lau X-ray interf.rom.try

质子数Z分别位于Ru之上和之下的A～(100～126)丰中子原子核三轴形变在原子核形状变迁和共存中的重要作用(英文)

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原子核物理评论 2015年第1期32卷 1-23页

作者：罗亦孝 j.H.Ham.lton j.O.Rasm.ssen A.V.Ram.yya s.f.auendorf.王恩宏 j.K.Hwang.王建国李红洁杨韵颐朱胜江刘艳鑫焦长峰梁午阳石跃许甫荣孙扬刘少华 N.t.Brewer I.Y.Lee g.m.ter-Akopian A.V.Daniel Yu.Og.nessian m.A.stoyer R.Donang.lo 马文超 Physics Departm.nt Vanderbilt University Lawrence Berkeley National Laboratory Departm.nt of.Chem.stry U.C.Berkeley Departm.nt of.Physics University of Notre Dame Institut f.r strahlenphysik FZD-Rossendorf Departm.nt of.Physics Tsinghua University school of.science Huzhou Teachers College school of.Physics Peking University Departm.nt of.Physics and Astronom. Shanghai Jiao Tong University Institute of.m.dern Physics Chinese Academy of Sciences Chem.stry Departm.nt University of Kentucky Physics Division Oak Ridge National Laboratory f.erov Laboratory f.r Nuclear Reactions JINR Lawrence Liverm.re National Laboratory Instituto de f.sica Facultad de Ingenieria Physics Departm.nt Mississippi State University

基于Ru(Z=44)丰中子同位素中存在最大三轴形变的理论预言和实验证据,综述了近年来Rh(Z=45),Pd(Z=46),Ag.Z=47),Cd(Z=48)(质子数Z位于Ru,Z=44之上)及Zr(Z=40),Nb(Z=41),m.(Z=42),tc(Z=43)(质子数Z位于Ru,Z=44之下)的A～(100～126)丰中子同位素中关于三轴形变的形状变迁和形状共存系统性研究的重要进展。252Cf.发裂变瞬发γ射线γ-γ-γ三重符合、特别是新建立的γ-γ-γ-γ四重符合数据的系统观测和研究,在Ru,Pd,Cd和Nb丰中子同位素中显著扩展或首次观测到了一系列能带,为这个核区原子核形状的研究提供了新的、重要的实验数据。联系此前报道的有关进展,使用PEs,tRs,Psm.CCCsm.sCtAC理论模型计算拟合新的实验数据,在该核区沿同中素和同位素链,并随自旋和激发能变化各自由度,跟踪原子核形状渐进变化,获得了新的系统性研究成果,显著扩展和深化了人们对原子核形状变迁和形状共存的认知。对于Ru及其上的Rh(Z=45),Pd(Z=46),Ag.Z=47)和Cd(Z=48)丰中子同位素的研究表明:Rh丰中子核具有比最大值稍小的三轴形变,γ=-28°,并在103–106Rh同位素链上鉴别出了手征对称破缺;在三轴形变核112Ru和114Pd(N=68)中发现了三轴原子核的摆动运动,该摆动运动也可能在114Ru(N=70)中存在;观察到了从具有最大三轴形变的110,112Ru中手征破缺到稍小三轴形变的112,114,116Pd中扰动的手征破缺的过渡;在较软的Ag.中观察到了丰富的谱学结构,在104,105Ag.鉴别出了可能的手征对称破缺,在较重的115,117Ag.提出了趋于三轴形变的γ软度;具有小形变的Cd核的能级结构被解释为准粒子耦合、准转动和软三轴形变;最近的库伦激发的研究提供了Z=50,N=82满壳附近122,124,126Cd核中出现核集体性的实验和理论证据;上述研究成果展现出从Ru中的最大三轴形变(γ=-30°,三轴形变极小增益为0.67 m. V),经具有大三轴形变的Rh核(γ=-28°),到Pd核中的稍小、但稳定于中等自旋到高自旋区的三轴形变(γ～-41°,三轴形变极小增益为0.32 m. V),再经Ag.中的γ软度,最后到具有很小形变、但仍出现集体性质、包括软三轴形变的Cd核的过渡。对于Pd核转动带交叉系统性的研究揭示了其第一带交叉(νh11/2)2中子转动顺排的上行γ驱动,和第二带交叉(πg./2)2质子转动顺排的下行γ驱动效应,成功地解释了114Pd中的三轴摆动运动,并给出了110-118Pd同位素链中理论早已预言、而比早期理论预言更为完整准确的形状渐进变迁和形状共存的图像。根据该核区的系统研究,发现最大三轴形变出现在112Ru,而在相邻的偶Z(Pd)同位素链,三轴形变极小的中心在114Pd,两者均为N=68。上述系统性研究沿相邻的Ru和Pd偶Z同位素链,在N=68同中素中鉴别出最大三轴形变,均比理论预言的108Ru和110Pd多4个中子。在Z值位于Ru(Z=44)之下的Zr(Z=40),Nb(Z=41),m.(Z=42)and tc(Z=43)丰中子同位素中,Y和Zr核具有很强的轴对称四极形变,而在较重的Zr同位素中出现了γ自由度;较重的Nb核(A=104～106)基态具有中等程度的软三轴形变和强四极形变,随着自旋和激发能的增加,过渡到接近于轴对称的强四极形变;而较轻的Nb核(A 103)基态均接近轴对称形状;在Nb同位素链上基态由球形到强四极形变的形状突变发生在100Nb(N=59),在100–106Nb同位素链中基态的软三轴形变随中子数增加而增加;在Nb核中还观察到关于软三轴形变的形状共存;m.核具有大的三轴形变,观察到了γ振动和手征对称破缺;tc核具有比最大值稍小的三轴形变,γ=-26°,并观察到了手征对称破缺。质子数Z从41到48的A～(100～126)丰中子同位素,特别是Pd和Nb同位素,呈现出关于三轴形变的过渡特征。

关键词：质子数从41到48范围的丰中子核原子核形状变迁和共存长椭球到扁椭球形状变迁三轴形变三轴形变原子核摆动运动原子核手征对称破缺扰动手征态 γ振动能带高自旋态带交叉 γ驱动效应准转动 Z=50和N=82闭壳附近集体性和软三轴形变的出现能级纲图原子核能级自旋/宇称/组态指定位能面(PEs) 投影壳模型(Psm. 总Routhian面(tRs) 推转和组态限制壳模型(CCCsm.和壳修正斜轴推转模型(sCtAC)理论计算自发裂变瞬发γ谱学 γ射线三重和四重符合及角关联测量锎-252 g.m.asphere多探测器系统