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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

Profile of the composition.fraction. in neutron stars

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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, Nation.l 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.fraction. of β-stable neutron stars and their radial distribution. 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 fraction. 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 fraction. 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...

Progress on Nuclear Data Measurement at Peking University in 1994

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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中国核科技报告 1995年第S3期 8-16页

作者： Chen Jinxiang Tang Guoyou Shi Zhaomin (Institute of Heavy ion.Physics, Peking University )

In 1994, the considerable progress was made on development of facilities and nuclear data measurement. The main works are described briefly as follows: 1 Development of Accelerator Facilities

关键词： Progress on Nuclear Data Measurement at Peking University in 1994

PROGRESS ON NUCLEAR DATA MEASUREMENT IN PEKING UNIVERSITY IN 1991

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中国核科技报告 1992年第S1期 11-15页

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

1 DEVELOPMENT OF EQUIPMENTS1.1 4.5 MV Single End Van de Graaff Accelerator The machine in the year has got some progress as following:1)In order to solve the problem why the high voltage is not possible to behigh enough a new accelerator tube has been mounted to the machine and theresult confirmed that the main problem is the shielding for secondary electron.

关键词： PROGRESS ON NUCLEAR DATA MEASUREMENT IN PEKING UNIVERSITY IN 1991 high

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

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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 cation. 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

The Influence of Gravity on Single Crystallization.in Large Volume Drops

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Journal of Crystallization.Process and Technology 2014年第4期4卷 206-211页

作者： ion.Sandu Iuliana Iordache Claudiu Teodor Fleaca Florian Dumitrache Ana Maria Niculescu Nation.l Institute for Lasers Plasma and Radiation Physics Laser Department Laser Photochemistry Laboratory Bucharest Romania

The chemical, physical, and biological properties of more than two million. of proteins which follow to be synthesized by Pharmaceutical Industry, can be anticipated (by using their XRD diffrac-tograms) if they will be grown from aqueous drops as high quality, large volume single-crystals. This is not a simple task and usually the growing process is seen as art rather than a science. The growing is expensive, time consuming, and finally an amorphous aggregate may result instead one single-crystal. In this article, we show for the first time how one single crystal can be grown in large volume hanging drops through their fast evaporation. The single nucleation.is determined by choosing the proper sense of gravitation.l force relative to the drop triple line contact. In a special configuration. single-crystals of glycine and threonine were rapidly grown.

关键词： Single Nucleation Drop Evaporation Protein Crystallization Triple Line Contact Interface Gravity

Formation.of substitution.l metallofullerenes by laser ablation.of externally doped fullerenes C_(60)M_x(M=Sm,Pt,Ni and Rh)

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Chinese Science Bulletin 2002年第4期47卷 284-291页

作者： KONG Qingyu, SHEN Yifeng, ZHUANG Jun, ZHAO Li, QIAN Shixion., LI Yufen, LI Xu, LIN Yanghui & CAI RuifangDepartment of Physics, Fudan University, Shanghai 200433, China State Key Joint Laboratory for Materials Modification.by Laser, ion.and Electro Department of Physics Fudan University Shanghai China State Key Joint Laboratory for Materials Modification.by Laser Ion and Electron Beams Fudan University Shanghai China Department of Chemistry Fudan University Shanghai China

Photofragmentation.study of metal fullerides C60Mx (M=Sm, Pt, Ni and Rh) by excimer laser ablation.TOF mass spectrometry shows that metallofullerenes C2nM and C2n+1M formed in both the positive and negative ion.c modes. The isotopic distribution. of the metallofullerenes C2nM and C2n+1M are consistent with the calculated spectra based on the natural abundance of isotopes of C and M, confirming the formation.of metallofullerenes. The metal atom is sup-posed to be incorporated into the network of the fullerene cage to replace one carbon atom of the cage forming substi-tution.l metallofullerene. Odd-numbered high carbon clusters are observed in our laser ablation.study of all the metal fullerides in the negative ion.channel. Evolution.of mass spectrum with irradiation.laser shots shows that the formation.of the substitution.lly doped fullerenes is closely related to the production.of metal carbide (MC). The structures, as well as formation.mechanism, of metallofullerenes C2n+1M and C2nM with even and odd

关键词： TOF-MS laser ablation substitution.l metallofullerenes odd-numbered high carbon clusters.

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

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生物物理学报 2009年第S1期25卷 444-444页

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

Background: It is important to understand the mechanisms of bio-effects in low-energy ion.irradiated plant seeds. Recently, the increasing data have been accumulated concerning

关键词： Medicago truncatula ion.beam ROS