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Influence of scanning force microscope loading force on measurement of ion-track diameter

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Nuclear Science and Techniques 1997年第3期 32-34页

作者： Wang Yu Gang, Zhao Wei Jiang ( Institute of Heavy ion Physics, Peking University, Beijing 100871) Ackermann J, Müller A and Neumann R (Gesellschaft für Schwerionenforschung (GSI), Planckstr. 1,D 64291 Darmstadt, Germany) InstituteofHeavyionPhysics PekingUniversityBeijing100871 GesellschaftfuerSchwerionenforschung(GSI) p

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关键词： ion track diameter Scanning force microscopy loading force

Co-genotoxic Effects of Diesel Particulate Extract and Ultraviolet A Radiation in Mammalian Cells

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生物物理学报 2009年第S1期25卷 153-154页

作者： Xu A, Bao LZ, and Wu LJ Key Laboratory of ion Beam Bioengineering, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, P.R.China, 230031

Diesel exhaust (Diesel exhaust particles, DEPs, and their extracts, DPE) and ultraviolet A are two ubiquitous environmental factors that have been identified as essential risk factors

关键词： co-genotoxic effects diesel particulate extract and ultraviolet A radiation mammalian cells

The low-lying rotational bands of the neutron-rich nucleus ^(172)Tm

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Science China(Physics,Mechanics & Astronomy) 2009年第10期52卷 1542-1547页

作者： CHEN BaoRen1,LI Tao1 & LIU ShuXin1,2 1 School of Physics,Peking University,Beijing 100871,China 2 Center of Theoretical Nuclear Physics,National Laboratory of Heavy ion Collisions,Lanzhou 730000,China School of Physics Peking University Beijing China Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Collisions Lanzhou China

The microscopic mechanism of four experimentally observed bands in 172Tm is investigated using the particle-number conserving method of the cranked shell model with monopole and quadrupole paring *** experimental results,including the moments of inertia and angular momentum alignments of four bands in 172Tm are reproduced well by the particle-number conserving *** ω variation of the occupation probability of each cranked orbital and the contribution to moment of inertia from each cranked orbital are *** unobserved low-lying bands of 2-quansiparticles in 172Tm are predicted.

关键词： neutron-rich nucleus rare earth rotational band

Electronic Interface for Pneumatic Grippers Using USB Port

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Electronic Interface for Pneumatic Grippers Using USB Port

PROGRESS ON NUCLEAR DATA EVALUATion IN PEKING UNIVERSITY IN 1991

International Conference on Optimization of the Robots and Manipulators（OPTIROB 2011）

作者： Ciprian ion Rizescu Dana Rizescu Georgeta ionascu University POLITEHNICA of Bucharest Faculty of Mechanical Engineering and Mechatronics

The paper deals with an electronic interface built on Arduino electronics. The interface allows controlling several pneumatic grippers using a PC. The grippers are connected to the PC using the mentioned interface which is connected to PC through USB port. The authors are continuing a work developed since 2005 when a LPT electronic interface was developed.

关键词： pneumatic gripper electronic interface robot’s end effectors.

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中国核科技报告 1992年第S1期 61-62页

作者： Tang Guoyou Bao Shanglian(THE INSTITUTE OF HEAVY ion PHYSICS, PEKING UNIVERSITY)

1 NEUTRON NUCLEAR DATA EVALUATion FORU The evaluation of neutron nuclear data ofU for CENDL-2 was *** to CENDL—1,the resonance parameters have been addedand all pointwise data have been *** to ENDF/B—5,most ofthe data were *** the relatively measured data(toU andAu)have been renormalized to ENDF/B—6 data *** theoretical calculation

关键词： data ENDF PROGRESS ON NUCLEAR DATA EVALUATion IN PEKING UNIVERSITY IN 1991

Cross-sectional atlas of the brain

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Profile of the composition fractions in neutron stars

2005年

作者： Peter Ratiu and ion-Florin Talos.

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Chinese Science Bulletin 2002年第8期47卷 632-634页

作者： LI Wenfei, ZHANG Fengshou & CHEN LiewenCenter of Theoretical Nuclear Physics, National Laboratory of Heavy ion Accelerator, Lanzhou 730000, China Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China Department of Physics, Shangh Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator Lanzhou China Institute of Modern Physics Chinese Academy of Sciences Lanzhou China Department of Physics Shanghai Jiao Tong University Shanghai China

The composition fractions of β-stable neutron stars and their radial distributions are investigated based on Skyrme-Hartree-Fock theory and Tolman-Oppenheimer-Volkoff (TOV) equation. It is found that a pure neutron interior with a radius of 3.5 km can exist in the neutron stars. When the radius is greater than 3.5 km, the fractions of the proton, electron and μ- appear and increase with the increment of the radius, then decrease after reaching their maximum at the radius of 8 km. These results make it possible to further study the thermal evolution and magnetic properties of the neutron stars.

关键词： neutron stars compositon fractions asymmetric nuclear matter equation of state Tolman-Oppenheimer-Volkoff equation.

Reactive Oxygen Species Acted as a Bystander Signals to Generate Bio-effects in Low-Energy ion Irradiated Medicago truncatula Seeds

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Reactive Oxygen Species Acted as a Bystander Signals to Gene...

Screening of Bioflocculant-Producing Strain by ion Implantation and Flocculating Characteristics of Bioflocculants

第十一次中国生物物理学术大会暨第九届全国会员代表大会

作者： Chen Hao,Yuan Hang,Wu Lijun Key Laboratory of ion Beam Bioengineering,Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031 China

＜正＞Background:It is important to understand the mechanisms of bio-effects in low-energy ion irradiated plant ***,the increasing data have been accumulated concerning the

关键词： Medicago truncatula ion-beam ROS

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Plasma Science and Technology 2008年第3期10卷 394-397页

作者：李培睿李宗伟李宗义秦广雍霍裕平 Key Laboratory of ion Beam Bio-Engineering Zhengzhou University Zhengzhou 450052 China College of Life Sciences Henan Normal University Xinxiang 453002 China Key Laboratory of ion Beam Bio-Engineering Zhengzhou University Zhengzhou 450052 China College of Life Sciences Henan Normal University Xinxiang 453002 China

A bioflocculant-producing mutator strain, NIM-192, was screened out through nitrogen ion implanting into F J-7 strain. The results showed that NIM-192 had good genetic stability and high flocculating activity, and the flocculating rate increased by 34.26% than that of the original. Sucrose, complex nitrogen source contained yeast extract, urea and pH 7.0～ 9.0 were chosen as the best carbon source, nitrogen source and initial solution pH for bioflocculant production, respectively. The bioflocculant kept high and stable flocculating activity at alkalinous reaction mixture with a pH beyond 7.0, while the flocculating activity was remarkably reduced when the reaction pH was lower than 7.0. Addition of many cations could obviously increase the flocculating rate, among which Ca^2＋ demonstrated the best effect. The bioflocculant had very strong acid-base stability and *** flocculating rate kept over 86% when pH of the bioflocculant was in a range of 3.0 ～ 12.0, and the change of flocculating activity was not great when heated at 100℃ for 60 rain.

关键词： ion implantation bioflocculant mutation breeding flocculating characteristics