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Analyses of d-^(6,7)Li and d-^(7,9)Be Reactions

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Chinese journal of nuclear physics 1997年第2期19卷 103-109页

作者： Han Yinlu Shen Qingbiao Zhang Jingshang Liu Weiping Bai Xixiang China institute of atomic energy,P.O.Box 275(41),{3. 102413.hang Zhengjun Sun Xiuquan Department of Physics,Northwest University,Xian 710069 中国原子能科学院北京西北大学物理系陕西西安

Aiming at the production of 6He,8Li and 7Be radioactive beams,various nuclear dataof d+6,7Li and d+9Be reactions at incident energies spanning 0,1～3..0 MeV are obtained bycalculation with the distorted wave Born approximation,preequilibrium nuclear reaction andHauser-Feshbach（HF）*** cross sections of d+7Be reaction are also *** show that the experimental measurement for d+7Be reaction is feasible at HI-13.tandemaccelerator.

关键词： ~6He ~8Li and ~7Be Radioactive beam

n+23.Pu Coupled Channel Optical Model and DWBA Calculations

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中国核科技报告 1997年第S2期 35-39页

作者： Wang Shunuan (China institute of atomic energy, P.O. Box 275-41, {3. 102413.

n+pu coupled channel optical model and DWBA calculations are performed by using ECIS95 and PRECISI codes. The calculated results of total cross section, reaction cross section, shape elastic and direct inelastic scattering cross sections and angular distributions getting from different methods are analyzed and compared. The different calculated methods used are reviewed.

关键词： SCC Pu Coupled Channel Optical Model and DWBA Calculations than line

HREM STUDY OF GRAIN BOUNDARY PHASES IN Fe-Ni-Co-Nb-Ti SUPERALLOY

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Acta Metallurgica Sinica(English Letters) 1996年第6期9卷 595-600页

作者： R.M. Wang C.Z. Li S. W. Zhang and M.G.Yan(1)institute of Aeronautical Materials, beijing 100095, China 2)Laboratory of atomic Imaging of Solids, institute of Metal Research, Chinese Academy of Sciences,Shenyang 110015, China 3.beijing Laboratory of Elect beijing Inst of Aeronautical Materials Beijing China

The microstructures of the grain boundary phases in Fe-Ni-Co-Nb-Ti superalloy have been studied by high resolution electron microscopy (HREM).Besides the Laves phase,three other grain boundary phases have been found and analyzed. The ε phase particles are needle-like with some stacking faults along the(0001) direction. The dominant phase at the grain boundaries is the orthorhombic phase that is also rod-like. High reselution image also confirms the existence of the triclinic phase at the grain boundaries that is irregular and scarce.

关键词： high resolution electron microscopy grain boundary phase,FeNi- Co superalloy

Quantum Information Network

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Quantum Information Network

Analysis of Neutron Double-Differential Cross Section of n+14N at 14.2 MeV

第二届全国复杂动态网络学术论坛

作者： Bi Qiao Center for Advanced Nanotechnology, University of Toronto, Canada M5S 3.4. Fang Jinqing China institute of atomic energy, {3. 102413. China

＜正＞We present a quantum information network by studying to use quantum states or quantum information density to realize quantum computing or communication in the *** photons are as flying ebit to transmit interaction between two separate nodes and entangled or communicated through quantum channel.A quantum Gauss channel is constructed,which permits photons encoded information to transmit quantum signals with certain quantum *** corresponding quantum dynamical mutual information related to dynamical evolution process is *** allow us to study links of nodes for the quantum network by adding experiential driving *** different driving terms the different type of corresponding link distributions are *** the driving term is periodic function,the corresponded link is also type of periodic function,if the driving term is exponential function,the corresponded links distribution is type of logarithm function and is found remaining invariant when time t （＞1.25） ***, if the driving term is a catastrophic polynomial,the link is type of irrational polynomial,which may show kinds of ***,the connectivity distribution is given,which shows that connectivity distribution may not satisfy power law with negative power experiential,instead,they may be kinds of functions of k and have positive power experiential.

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来源： cnki会议评论

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Communications in Theoretical Physics 2005年第7期44卷 128-132页

作者： YAN Yu--Liang DUAN Jun--Feng SUN Xiao--Jun WANG Ji--Min ZHANG Jing--Shang China institute of atomic energy, P. O. Box 275(41), {3. 102413. China College of Physics and Information Technology, Guangxi Normal University, Guilin 541004, China China institute of atomic energy P.O. Box 275(41) Beijing 102413 China

By using a new reaction model for light nuclei,the double-differential cross section of n+14N reactions atE_n=14.2 MeV has been *** the case of n+（14）N reactions,the reaction mechanism is cery complex,there areover one hundred opened partial reaction channels even at incident energy En=14.2 *** this paper the openedreaction channels are listed in detail. With LUNF code the model calculation is performed to analyze the double-differential cross sections of total outgoing neutron. The calculated results agree fairly with the experimenal *** indicate that the pre-equilibrium mechanism mechanism dominates the whole reation processes,and the recoil effect in lightnuclear reactions is essentially important.5He emission has been considered,but it is only a small contribution to thedonble-differential cross section at incident energy En=14.2 MeV.

关键词： light nucleus reaction double-differential cross section

Theoretical study of ZnO adsorption and bonding on Al_2O_3.0001) surface

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Science China(Physics,Mechanics & Astronomy) 2004年第6期47卷 664-675页

作者： LI Yanrong1,YANG Chun1,2,XUE Weidong1,LI Jinshan3.& LIU Yonghua3.1.institute of Microelectronics and Solid State Electronics,University of Electronic Science and Technol- ogy of China,Chengdu 610054,China 2.institute of Mathematics and Software Science,Sichuan Normal University,Chengdu 610068,China 3.institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621000,China institute of Microelectronics and Solid State Electronics University of Electronic Science and Technology of China Chengdu 610054 China institute of Mathematics and Software Science Sichuan Normal University Chengdu 610068 China institute of Chemical Materials China Academy of Engineering Physics Mianyang 621000 China

ZnO adsorption on sapphire (0001) surface is theoretically calculated by using a plane wave ultrasoft pseudo-potential method based on ab initio molecular dynamics. The results reveal that the surface relaxation in the first layer Al-O is reduced, even eliminated after the surface adsorption of ZnO, and the chemical bonding energy is 43..3.±3..6) kJ·mol?1. The chemical bond of ZnO (0.185 ± 0.01 nm) has a 3.° angle away from the adjacent Al-O bond, and the stable chemical adsorption position of the Zn is deflected from the surface O-hexagonal symmetry with an angle of about 3.°. The analysis of the atomic populations, density of state and bonding electronic density before and after the adsorption indicates that the chemical bond formed by the O2 of the ZnO ? and the surface Al3. has a strong ionic bonding characteristic, while the chemical bond formed by the Zn2+ and the surface O2 has an obvious covalent characteristic, which ? comes mainly from the hybridization of the Zn 4s and the O 2p and partially from that of the Zn 3. and the O 2p.

关键词： α-Al2O3.(0001) ZnO ab initio molecular dynamics chemical adsorption density of states

THE EVLAUATION OF23.a(n,γ)24Na REACTION CROSS SECTION

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中国核科技报告 1990年第S3期 36-44页

作者： Yuan Hanrong (institute OF atomic energy, {3.)

The evaluation of the neutron capture cross section ofNa is of consider-able importance to the liquid metal fast breeder reactor design and its safe ***,Sodium is an important reference material,it can be com-bined with many other elements to form highly pure *** the evaluateddata of this cross section could serve as a standard for many other cross sectionmeasurements and neutron flux measurement by employing *** this reason,the measurement and evaluation of this cross sec-

关键词： Na REACTION CROSS SECTION VI data ENDF THE EVLAUATION OF

Preparation and characterization of carbon nano-sheet powders

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Petroleum Science 2008年第1期5卷 79-82页

作者： Yang Wubao Zhao Zhen Fang Songhua Wang Yong Yang Size Lin Li School of Electromechanical Engineering China University of Petroleum Beijing 102249 China School of Chemical Science and Engineering China University of Petroleum Beijing 102249 China institute of Physics Chinese Academy of Sciences Beijing 100080 China

Carbon nanosheet films were deposited on A1 substrates by using plasma assisted chemical vapor deposition （PACVD） technique. And after being peeled off from A1 substrates, carbon nanosheet powders （CNSPs） were obtained. In Raman spectrum of carbon film, there was a strong and broadened peak at about 1,580 cm^-1, indicating a carbon diamond-like film. atomic force microscope image showed that the carbon diamond-like film had a grain size less than 100 nm, and its surface roughness Ra was 17.95 nm in an area of 5×5 μm^2. The CNSPs were irregular sheets with curly edges and a length of several micrometers to several hundreds of micrometers. The BET surface area of CNSPs was 6.66 m^2/g with no micro-pore present, which was confirmed by N2 adsorption-desorption characterization. In the adsorption testing, when the relative pressure p/po was higher than 0.3. the adsorption behavior did not follow the Langmuir equation. The addition of CNSPs to carbon black （catalyst support） could improve hydrodesulfurization performance of carbon supported Ni-W catalysts for diesel oil.

关键词： Plasma assisted chemical vapor deposition carbon nanosheet powder N2 adsorption/desorption hydrodesulfurization

Activation Cross Section Measurment for te 180Hf(n,γ)181Hf Reaction

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中国核科技报告 1997年第S3期 19-23页

作者： ChenJinxiang ShiZhaomin TangGuoyou Zhang Guohui (institute of Heavy Ion Physics, Peking University, beijing 100871)Lu Hanlin Han Xiaogang Huang Xiaolong (China institute of {3. energy, P. O. Box 275(3., beijing 102413.

Introduction D. L. Smith and E. T. Cheng have reviewed the contemporary nuclear data needs and status for fusion-reactor technology. Activation cross sections were found to be unsatisfactory in 83.of 153.reaction ***(n,γ)Hf cross sections are also desired for the fusion-reactor technology. Some experimental data for this reaction from 3.kev to 4 MeV are reported in the literatures. This reaction is considered as inadequate for the present in this review. To evaluate these experimental data, it is necessary to re-measure the cross sections for this reaction.

关键词： Activation Cross Section Measurment for te Hf Reaction