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Competition between fusion-evaporation and multifragmentation in central collisions in ^(58)Ni+^(48)Ca at 25A MeV

Nuclear Science and Techniques 2013年第5期24卷 82-88页

作者： FRANCALANZA L ABBONDANNO U AMORINI F BARLINI S BINI M BOUgAULT R BRUNO M cardella g CASINI g AgOSTINO M D' De FILIPPO V De SANCTIS J gERACI E gIUSSANI A gRAMEgNA F gUIOT B KRAVCHUK V La gUIDARA E LANZALONE g Le NEINDRE N MAIOLINO C MARINI P MORELLI L OLMI A PAgANO A PAPA M PIANTELLI S PIRRONE S POLITI g POggI g PORTO F RUSSOTTO P RIZZO F VANNINI g VANNUCCI L INFN Laboratori Nazionali del Sud-LNS Catania 95123Italy Dipartimento di Fisica Universitàdi Catania I-95129Italy INFN Sezione di Trieste Trieste I-34127Italy Dipartimento di Fisica Universitàdi FirenzeINFN Sezione di Firenze 1-50139Italy LPC Caen IN2P3-CNRS/ENSICAEN and UniversitéF-14050 Caen cedex 5-140France Dipartimento di Fisica Universitàdi Bologna and INFN Sezione di Bologna 4-50121Italy INFN Sezione di Catania I-95129 Italy INFN Sezione di Firenze I-50139 Italy Dipartimento di Fisica Universitàdi Milano and INFN Sezione di Milano1-20126Italy INFN Laboratori Nazionali di Legnaro 1-35020 Italy Centro Siciliano di Fisica Nucleare e Struttura della Materia Catania 1-95129Italy UniversitàKore Enna 1-94100Italy

The experimental data concerning the58Ni+48Ca reaction at Elab(Ni)=25A MeV,collected by using the CHIMERA 4π device,have been analyzed in order to investigate the competition among different reaction mechanisms for central collisions in the Fermi energy *** a main criterion for centrality selection we have chosen the flow angle(flow) method,making an event-by-event analysis that considers the shape of events,as it is determined by the eigenvectors of the experimental kinetic-energy *** the selected central events(flow >60°) some global variables,good to characterize the pattern of central collisions have been *** main features of the reaction products were explored by using different constraints on some of the relevant observables,like mass and velocity distributions and their *** emphasis was devoted,for central collisions,to the competition between fusion-evaporation processes with subsequent identification of a heavy residue and a possible multifragmentation mechanism of a well defined(if any) transient nuclear *** evolution of the system and pre-equilibrium emission were taken into account by simulating the reactions in the framework of transport *** approaches have been envisaged(dynamical stochastic BNV calculations + sequential SIMON code,QMD,CoMD,etc.).Preliminary comparison of the experimental data with BNV calculations shows reasonable agreement with the assumption of sequential multifragmentation emission in the mass region of IMFs close to the heavy *** deviations from sequential processes were found for those IMFs in the region of masses intermediate between the mass of heavy residues and the mass of light *** simulations are in *** experimental analysis will be enriched also by information obtained inspecting the IMF-IMF correlation function,in order to elucidated the nature of space-time decay property of the emitting source associated with events having

关键词：多重碎裂中心碰撞蒸发过程 MeV 竞争熔合国际货币基金组织事件分析

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^(27)Al+^(27)Al耗散反应中激发函数的测量与统计性质分析

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高能物理与核物理 1999年第4期23卷 334-339页

作者：田文栋王琦李松林卢俊罗亦孝 F.Amorini M.Cabibbo g.cardella P.Figuere A.Musumarra A.M.Papa g.Pappalardo F.Rizzo S.Romano S.Tudisco B.Heusch 中国科学院近代物理研究所兰州730000 IstitutoNazionalediFisicaNucleare LaboratoriNazionaledelsudCatiniaItaly IstitutoNazinalediFisicaNucleare SezionediCataniaInaly CenetrdeRecherchesNucleaires SrasbourgFrance

通过测量能量从114—120MeV、能量步长为200keV的重离子耗散反应(27)AI＋(27)AI从θ(cm)＝50°-90°的角分布和激发函数，在对所有宏观出射道积分的基础上，分析了重离子耗散反应中激发函数涨落的物理性质．

关键词：重离子耗散反应激发函数非平衡统计涨落

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^(27)Al+^(27)Al耗散产物反应时间的提取

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高能物理与核物理 1999年第1期23卷 39-43页

作者：王琦田文栋李松林卢俊江中和胡鹏云 F.Amorini M.Cabibbo g.cardella P.Figuere A.Musumarra M.Parpa g.Pappalardo F.Rizzo S.Romano S.Tudisco B.Heusch 中国科学院近代物理研究所兰州730000 IstitutoNazionalediFisicaNucleare LaboratoriNazionedelSud IstitutoNazionalediFisicaNucleare Sezionedi CentredeRecherchesNucleaires StrasbourgFrance

用发展了的Ericson统计理论，从27Al＋27Al碰撞的耗散产物的激发函数提取了反应的相互作用时间约4．3×10-21s．

关键词：耗散反应截面涨落相互作用时间铝27 非弹性

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^(27)Al+^(27)Al耗散反应截面涨落的角度关联测量

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高能物理与核物理 2000年第2期24卷 119-124页

作者：胡鹏云王琦田文栋李松林卢俊 F.Amorini M.Cabibbo g.cardellaIstituto Nazionale di Fisica Nucleare P.Figuere A.Musumarra A.M.PapaIstituto Nazionale di Fisica Nucleare g.Pappalardo F.Rizzo S.Romano S.Tudisco B.Heusch 中国科学院近代物理研究所兰州730000 Istituto Nazionale di Fisica Nucleare Dipartimento di Fisica Centre de Recherches Nucleaires

在2 7Al+ 2 7Al(Elab≈ 1 2 0MeV)耗散反应激发函数涨落的实验研究中 ,首次在较大的角度范围内获得截面涨落的角度关联系数和角度关联函数 .实验结果表明 ,角度关联函数的形状呈现明显的非对称性 ,角度相干宽度至少为 4 0°;截面涨落在... 详细信息

在2 7Al+ 2 7Al(Elab≈ 1 2 0MeV)耗散反应激发函数涨落的实验研究中 ,首次在较大的角度范围内获得截面涨落的角度关联系数和角度关联函数 .实验结果表明 ,角度关联函数的形状呈现明显的非对称性 ,角度相干宽度至少为 4 0°;截面涨落在前后角区表现出明显不同的角度相关性 .

关键词：重离子耗散反应截面涨落角度关联函数角度相干宽度测量激发函数

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Stepping up after spinal cord injury:negotiating an obstacle during walking

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Neural Regeneration Research 2025年第7期20卷 1919-1929页

作者： Alain Frigon Charly g.Lecomte Department of Pharmacology-Physiology Faculty of Medicine and Health SciencesUniversitéde SherbrookeCentre de recherche du Centre Hospitalier Universitaire de SherbrookeSherbrookeQCCanada

Every day walking consists of frequent voluntary modifications in the gait pattern to negotiate *** spinal cord injury,stepping over an obstacle becomes *** over an obstacle requires sensorimotor transformations in several structures of the brain,including the parietal cortex,premotor cortex,and motor *** information and planning are transformed into motor commands,which are sent from the motor cortex to spinal neuronal circuits to alter limb trajectory,coordinate the limbs,and maintain *** spinal cord injury,bidirectional communication between the brain and spinal cord is disrupted and animals,including humans,fail to voluntarily modify limb trajectory to step over an ***,in this review,we discuss the neuromechanical control of stepping over an obstacle,why it fails after spinal cord injury,and how it recovers to a certain extent.

关键词： biomechanics locomotion neurophysiology obstacle negotiation spinal cord injury

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An SPH Framework for Earthquake-Induced Liquefaction Hazard Assessment of geotechnical Structures

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 251-277页

作者： Sourabh Mhaski g.V.Ramana Department of Civil Engineering Indian Institute of Technology DelhiNew Delhi110016India

Earthquake-induced soil liquefaction poses significant risks to the stability of geotechnical structures *** understanding of the liquefaction triggering,and the post-failure large deformation behaviour is essential for designing resilient *** present study develops a Smoothed Particle Hydrodynamics(SPH)framework for earthquake-induced liquefaction hazard assessment of geotechnical *** coupled flowdeformation behaviour of soils subjected to cyclic loading is described using the PM4Sand model implemented in a three-phase,single-layer SPH framework.A staggered discretisation scheme based on the stress particle SPH approach is adopted to minimise numerical inaccuracies caused by zero-energy modes and tensile ***,non-reflecting boundary conditions for seismic analysis of semi-infinite soil domains using the SPH method are *** numerical framework is employed for the analysis of cyclic direct simple shear test,seismic analysis of a level ground site,and liquefaction-induced failure of the Lower San Fernando *** agreement for liquefaction triggering and post-failure behaviour demonstrates that the SPH framework can be utilised to assess the effect of seismic loading on field-scale geotechnical *** present study also serves as the basis for future advancements of the SPH method for applications related to earthquake geotechnical engineering.

关键词： Earthquake seismic liquefaction stress particle PM4Sand smoothed particle hydrodynamics(SPH)

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Bioelectronic medicine in modulation of cortical spreading depolarization and beyond

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Neural Regeneration Research 2025年第2期20卷 481-482页

作者： Khaled Alok Timothy g.White Chunyan Li Department of Neurosurgery Donald and Barbara Zucker School of Medicine at Hofstra/NorthwellHempsteadNYUSA Translational Brain Research Laboratory The Feinstein Institutes for Medical ResearchManhassetNYUSA

Bioelectronic interventions,specifically trigeminal nerve st imulat ion(TNS),have attracted considerable attention in conditions where cortical spreading depolarizations(CSDs)accompanied by compromised cerebral perfusion may exacerbate neurological *** pharmacological interventions have demonstrated initial potential in addressing CSDs,a standardized treatment approach has not yet been *** objective of this perspective is to explore emerging bioelectronic methodologies for addressing CSDs,particularly emphasizing TNS,and to underscore TNS’s capacity to enhance neurovascular coupling and cerebral perfusion.

关键词： cerebral perfusion electronic

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Impact of Zika virus non-structural protein mutations on hippocampal damage

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Neural Regeneration Research 2025年第8期20卷 2307-2308页

作者： Larissa M.g.Cassiano Roney S.Coimbra Neurogenômica/Imunopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil Departamento de Bioquímica e Imunologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a member of the Flaviviridae family,attracted worldwide attention for its connection to severe neurological effects,notably microcephaly in newborns,first reported during the 2015 epidemic in ***,its impact goes beyond fetal and neonatal abnormalities,also affecting the central nervous system(CNS)in both children and adults,leading to enduring cognitive and behavioral impairments.

关键词： damage fetal neonatal

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Projective Hilbert modules and sequential approximations

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Science China Mathematics 2025年第1期 137-168页

作者： Lawrence g.Brown Huaxin Lin Department of Mathematics Purdue University Department of Mathematics East China Normal University Department of Mathematics University of Oregon Shanghai Institute for Mathematics and Interdisciplinary Sciences

We show that when A is a separable C*-algebra,every countably generated Hilbert A-module is projective（with bounded module maps as morphisms）.We also study the approximate extensions of bounded module *** the case where A is a σ-unital simple C*-algebra with strict comparison,and every strictly positive lower semicontinuous affine function on quasitraces can be realized as the rank of an element in the Cuntz semigroup,we show that the Cuntz semigroup is equivalent to unitarily equivalent classes of countably generated Hilbert A-modules if and only if A has stable rank one.

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An Angular Correlation Measurement in Excitation Functions of Reaction ^(27)Al+^(27)Al1

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IMP & HIRFL Annual Report 1996年第1期 28-28页

作者： Wang Qi Li Songlin Lu Jun Xu ushan F.Axnerini M.Cabibbo g.cardella P.Figuere A.Musumarra M.Papa g.Pappalardo F.Rizzo S.Romano S.Tudisco B.Heusch S.Y.Kun 不详 LNS INFN Italy g.R.N. Strasbourg France Depar. of Phys. Canbara Uni. Australia.

ＡｎＡｎｇｕｌａｒＣｏｒｒｅｌａｔｉｏｎＭｅａｓｕｒｅｍｅｎｔｉｎＥｘｃｉｔａｔｉｏｎＦｕｎｃｔｉｏｎｓｏｆＲｅａｃｔｉｏｎ２７Ａｌ＋２７Ａｌ￥ＷａｎｇＱｉ；ＬｉＳｏｎｇｌｉｎ；ＬｕＪｕｎ；ＸｕＨｕｓｈａｎ；Ｆ．Ａｘ... 详细信息

ＡｎＡｎｇｕｌａｒＣｏｒｒｅｌａｔｉｏｎＭｅａｓｕｒｅｍｅｎｔｉｎＥｘｃｉｔａｔｉｏｎＦｕｎｃｔｉｏｎｓｏｆＲｅａｃｔｉｏｎ２７Ａｌ＋２７Ａｌ￥ＷａｎｇＱｉ；ＬｉＳｏｎｇｌｉｎ；ＬｕＪｕｎ；ＸｕＨｕｓｈａｎ；Ｆ．Ａｘｎｅｒｉｎｉ；Ｍ．Ｃａｂ...

关键词： &

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