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Computer Simulation of Surface Damages at Atomic Scale Inducedby Cluster Impacting

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Chinese Physics Letters 1995年第8期12卷 497-500页

作者： pan zhengying LI Rongwu HO Yukun Physics Department 2 Fudan UniversityShanghai 200433 Ion Beam Laboratory Shanghai Institute of MetallurgyAcademia SinicaShanghai 200050

A many-body hybrid potential,which is the combination of the tight-binding and the Moliere potential,has been *** surface damages at atomic scale caused by gold clusters,with energy of 3250eV,impacting on gold crystals have been investigated by molecular dynamics *** results are compared with that from the two-body Moliere potential.

关键词： potential. potential simulation.

Impact-Parameter Dependence of the Electronic Energy Loss of Protons in Solids

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Chinese Physics Letters 1995年第7期12卷 389-392页

作者： WANG Nengping HUO Yukun pan zhengying SHAO Qiyun Department of Physics 2 Fudan UniversityShanghai 200433

We calculate the electronic energy loss of the low- and intermidiate-energy proton in collision with a solid atom as a function of the impact-parameter by using the linear-response dielectric theory,the semiclassical approximation and local electron density *** correlation and exchange interaction of the electron gas in solids is taken into consideration by using a local-field-correction dielectric *** the formalism we also calculate the electronic stopping cross section of protons in solids.

关键词： function. dielectric solids

Molecular Dynamics Simulation of Low-Energy C_(60) in Collision with a Graphite (0001) Surface

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Chinese Physics Letters 1995年第12期12卷 751-754页

作者： MAN Zhenyong pan zhengying LIU Lei LI Rongwu Department of Physic 2 Fudan UniversityShanghai 200433 Ion Beam Laboratory Shanghai Institute of MetallurgyAcademia SinicaShanghai 200050 Department of Physics.Fudan University Shanghai 200433

The collision of C_(60) with a graphite(0001)surface has been investigated by molecular dynamics simulation with TLHL *** an impact energy of 90eV,the C_(60) buckyball first deformed to a disc-like structure and then transformed back to its original shape and recoiled *** dissociation of the C_(60) was observed on the time scale of the *** a single-atom-surface collision,the C_(60)-surface interaction is a highly inelastic process.

关键词： potential. process. collision

Development of a cell-permeable adenine-derived probe for capture of nucleotide-binding proteins in living cells

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Chinese Chemical Letters 2024年第3期35卷 243-246页

作者： Lihong Liu Rui Chen Gang Xue Chenzhou Hao Weizhi Weng zhengying pan State Key Laboratory of Chemical Oncogenomics School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhen 518055China

Adenine is an essential building block of genetic material and a range of *** probes containing an adenine moiety have been used in kinase profiling studies in cell *** we report that adenine-derived small-molecule probes with an activated ester reactive group can covalently modify a conserved lysine residue of protein kinases and capture a number of nucleotide-binding proteins within living cells.

关键词： Adenine-derived probe Cell-permeable Lysine residue Protein kinases Nucleotide-binding proteins

FISSION-LIKE ESTIMATE FOR THE EMISSION OF HEAVY CLUSTERS

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Chinese Physics Letters 1986年第4期3卷 145-148页

作者： pan zhengying YUAN Zhushu YANG Fuchia Department of Physics II Fudan UniversityShanghai

The exotic radioactive decay mode,in which a heavy cluster is emitted,is considered as a fission-like *** potential barrier associated with an axially symmetric shape distortion is calculated in terms of the interplay between the surface and the coulomb *** experimental branch ratios of ^(14)C and ^(24)Ne emissions toα-decays have been reproduced within about one power of ten,and some new kinds of radioactivities may be expected.

关键词： process. decay branch

The Ratio of Particle Flux of the Hydrogen to Carbon on Divertor Configuration in HL-2A Tokamak

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Southwestern Institute of Physics Annual Report

Southwestern Institute of Physics Annual Report 2004年第1期 22-24页

作者： SUN Ping pan Chuanhong CUI zhengying WANG Quanming HONG Wenyu

Interactions of plasma with the walls lead to particle release by various mechanisms and the amount of impurities in the plasma core limits the performance of the device. It is very important to get the particle fluxes for understanding the releasing mechanisms of impurities. The spectroscopic measurements to determine the impurity influx from localized surfaces in tokamak plasma is described in detail in Ref. Determined the origin of the chromium influxes by this method in ASDEX during ICRF heating were reported in Ref.

关键词： Divertor Particle flux

Preliminary Investigation of Impurity and Radiation Behaviors in the Startup Phase of HL-2A Tokamak

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Southwestern Institute of Physics Annual Report

Southwestern Institute of Physics Annual Report 2004年第1期 20-21页

作者： LI Wei pan Yudong CUI zhengying LUO Junlin DONG Jiafu

As the startup phase of HL-2A operation and the first divertor tokamak device in China, it is important to identify the species of impurity, estimate the concentration of impurities and compare the different behaviors of radiation in limiter and divertor configurationt. In startup phase of HL-2A, glowing discharge cleaning （GDC） is used as a conventional wall conditioning technology and titanium gettering is used occasionally in closed divertor chamber during SN configuration discharges phase.

关键词： Impurity Radiation Wall conditioning

Activity-based Chemical Probes:Development and Applications

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Activity-based Chemical Probes:Development and Applications

原子核与激光的相互作用(一)——激光引起的同质异能态衰变和γLaser

第八届全国化学生物学学术会议

作者： Qing Zhang Yiqing Zhou Tianlin Guo zhengying pan Shenzhen Key Laboratory of Chemical Genomics School of Chemical Biology and BiotechnologyShenzhen Graduate School

＜正＞Activity-based chemical probes（ABPs）have gained significant interests in both chemical biology and drug discovery *** this type of small molecule probes,information on protein targets at the functional level,rather than the expression level,can be *** also provides a direct and elegant way to study relationships between targets and drug *** this presentation,we will

关键词： activity-based probe protease kinase

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高能物理与核物理 1989年第7期13卷 664-669页

作者：霍裕昆潘正瑛复旦大学物理二系

用参量化的方法推导了激光引起的原子核同质异能态共振跃迁的几率,并考虑了激光频率宽度的效应.进而研究了基于以下概念发展γ激光器的可能性:即用强的可见光激光将长寿命的同质异能素转换到能量上近似兼并的短寿命同质异能素,并使后者... 详细信息

用参量化的方法推导了激光引起的原子核同质异能态共振跃迁的几率,并考虑了激光频率宽度的效应.进而研究了基于以下概念发展γ激光器的可能性:即用强的可见光激光将长寿命的同质异能素转换到能量上近似兼并的短寿命同质异能素,并使后者达到粒子数反转.在分析了同质异能态的粒子占有数随时间变化的基础上,数值计算了这一途径所需要的激光强度.

关键词：原子核激光衰变同质异能态