期刊：
Journal of environmental radioactivity,2010年101(6):504-508 ISSN：0265-931X
通讯作者：
Wang, JS
作者机构：
[Liu, Yun-guo; Hu, Xin-jiang] College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;[Xie, Shui-bo; Bao, Zheng-lei; Wang, Jing-song; Hu, Xin-jiang] School of Urban Construction, University of South China, 28 West Changsheng Road, Hengyang, Hunan 421001, China;[Xie, Shui-bo; Wang, Jing-song] Hunan Key Laboratory of Pollution Control and Resource Reuse, University of South China, Henyang, Hunan 421001, China
通讯机构：
[Wang, Jing-song] Univ S China, Sch Urban Construct, 28 W Changsheng Rd, Hengyang 421001, Hunan, Peoples R China.
会议名称：
9th International Conference on Biogeochemistry of Trace Elements
会议时间：
JUL, 2007
会议地点：
Beijing, PEOPLES R CHINA
会议主办单位：
[Wang, Jing-song;Hu, Xin-jiang;Xie, Shui-bo;Bao, Zheng-lei] Univ S China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.^[Wang, Jing-song;Xie, Shui-bo] Univ S China, Hunan Key Lab Pollut Control & Resource Reuse, Henyang 421001, Hunan, Peoples R China.^[Hu, Xin-jiang;Liu, Yun-guo] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
关键词：
Adsorption capacities - Adsorption process - Aspergillus fumigatus - Batch systems - Biosorbents - Contact time - Dynamic adsorption - Immobilized beads - Isothermal adsorption - Pseudo second order - Pseudo-second order model - Solution pH
摘要：
Biosorption of uranium (VI) ions by immobilized Aspergillus fumigatus beads was investigated in a batch system. The influences of solution pH, biosorbent dose, U (VI) concentration, and contact time on U (VI) biosorption were studied. The results indicated that the adsorption capacity was strongly affected by the solution pH, the biosorbent dose and initial U (VI) concentration. Optimum biosorption was observed at pH 5.0, biosrobent dose (w/v) 2.5%, initial U (VI) concentration 60 mg L(-1). Biosorption equilibrium was established in 120 min. The adsorption process conformed to the Freunlich and Temkin isothermal adsorption models. The dynamic adsorption model conformed to pseudo-second order model. (C) 2010 Elsevier Ltd. All rights reserved.
摘要：
In this paper, we consider a mathematical model for HIV-1 infection with intracellular delay and cell-mediated immune response. A novel feature is that both cytotoxic T lymphocytes (CTLs) and the intracellular delay are incorporated into the model. We obtain a necessary and sufficient condition for the global stability of the infection-free equilibrium and give sufficient conditions for the local stability of the two infection equilibria: one without CTLs being activated and the other with. We also perform some numerical simulations which support the obtained theoretical results. These results show that larger intracellular delay may help eradicate the virus, while the activation of CTLs can only help reduce the virus load and increase the healthy CD(4)(+) cells population in the long term sense.
作者机构：
[Chen, Xiao-Ming; Zhang, Jie-Peng; Zhang, Yue-Biao; Wang, Xiao-Feng] Sun Yat Sen Univ, Sch Chem & Chem Engn, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China.;[Wang, Xiao-Feng] Univ S China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.;[Huang, Hong] Sun Yat Sen Univ, Instrumental Anal & Res Ctr, Guangzhou 510275, Guangdong, Peoples R China.
通讯机构：
[Zhang, Jie-Peng] Sun Yat Sen Univ, Sch Chem & Chem Engn, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China.
会议名称：
12th International Conference on Crystalization of Biological Macromolecules
会议时间：
MAY 06-08, 2008
会议地点：
Cancun, MEXICO
会议主办单位：
[Wang, Xiao-Feng;Zhang, Yue-Biao;Zhang, Jie-Peng;Chen, Xiao-Ming] Sun Yat Sen Univ, Sch Chem & Chem Engn, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China.^[Wang, Xiao-Feng] Univ S China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.^[Huang, Hong] Sun Yat Sen Univ, Instrumental Anal & Res Ctr, Guangzhou 510275, Guangdong, Peoples R China.
摘要：
By treating Cu(NO(3))(2)center dot 3H(2)O with a V-shaped ligand 4,4'-oxydibenzoic acid (H(2)oba), a dynamic metal-carboxylate framework [Cu(2)(oba)(2)(DMF)(2)]center dot 5.25DMF (MCF-23) was synthesized, which features a wavelike layer with rhombic grids based on the paddle-wheel secondary building units. These layers stack via strong offset pi-pi stacking of the phenyl groups of oba ligands to give three-dimensional porosity. MCF-23 synthesized by conventional solvothermal methods always contains considerable and intractable impurities. In contrast, a microwave-assisted solvothermal method was proven to be a faster and greener approach to synthesize phase-pure MCF-23 in high yield. More interestingly, larger crystals suitable for single-crystal diffraction could be obtained by the multistep microwave heating mode. A powder X-ray diffraction study of MCF-23 reveals the dynamic structural transformation accompanying the release and reabsorption of the guest molecules. The N(2) (77 K) and CO(2) (195 K) gas sorption isotherms of the guest-free phase MCF-23a were measured.
摘要：
Ni/gamma-Al2O3 catalyst had been prepared by atmospheric pressure glow discharge (APGD) plasma jet. Such plasma-prepared catalyst exhibited an improved low-temperature activity in CO2 reforming of CH4, compared to that of the catalyst prepared by conventional method. Characteristics of catalysts were analyzed by means of X-ray powder diffraction (XRD), temperature programmed desorption (TPD) experiment with H-2 or CO2 probe, Brunauer-Emmett-Teller (BET) procedure, transmission electron microscopy (TEM) and thermogravimetric analysis (TGA). The XRD and TEM characterization showed that this novel plasma-assisted preparation induced Ni nano-particles as small as 5 nm. The results of XRD, H-2-TPD and TEM confirmed that, the nickel dispersion of the Ni/gamma-Al2O3 catalyst by APGD was enhanced greatly. The improved anti-coke deposition performance was illustrated from the results of TGA, CO2-TPD and the stability test experiments. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
摘要：
Lung cancer is a leading cause of death in human. Cancer stem cells have been regarded as basis for failure of current therapeutic options. Salinomycin was shown to kill these cancer stem cells in some types of cancer such as breast cancer and leukemia. The in vitro anticancer activities of salinomycin have been validated against the lung cancer cell line A549 via sulforhodamine B and colony formation assay. Salinomycin has been demonstrated to significantly rupture the in vitro lung cancer tumorospheres from ALDH positive A549 lung cells using flow cytometry. Expression of stem cell markers OCT-4, NANOG and SOX2 in ALDH positive A549 lung cells was decreased significantly by real-time RT-PCR analysis after 24 hour salinomycin treatment. Taken together, salinomycin may provide a promising approach for lung cancer chemotherapy.
期刊：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2010年10(8):4868-4874 ISSN：1533-4880
通讯作者：
Yuan, YL
作者机构：
[Ding, Jianqiang] Zhenhai Center for Disease Control and Prevention, Ningbo 315200, China;[Xu, Jinsheng] Department of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China;[Deng, Jian; Yuan, Yali] School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China;[Guo, Jianbo] School of Public Health, University of South China, Hengyang 421001, China
通讯机构：
[Yuan, Yali] Univ S China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
会议主办单位：
(1) School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China; (2) Zhenhai Center for Disease Control and Prevention, Ningbo 315200, China; (3) Department of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China; (4) School of Public Health, University of South China, Hengyang 421001, China
期刊：
Science in China Series A: Mathematics,2008年51(8):1537-1548 ISSN：1006-9283
通讯作者：
Shu, S
作者机构：
[Sun Dudu] Chinese Acad Sci, Grad Univ, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing 100190, Peoples R China.;[Shu Shi; Zhong LiuQiang] Xiangtan Univ, Sch Math & Computat Sci, Xiangtan 411105, Peoples R China.;[Shu Shi; Zhong LiuQiang] Hunan Key Lab Computat & Simulat Sci & Engn, Xiangtan 411105, Peoples R China.;[Tan Lin] Nanhua Univ, Dept Math Phys, Hengyang 421001, Peoples R China.
通讯机构：
[Shu Shi] Xiangtan Univ, Sch Math & Computat Sci, Xiangtan 411105, Peoples R China.
会议名称：
8th National Conference on Computational Mathematics
会议时间：
OCT 25-29, 2007
会议地点：
Sichuan Univ, Sichuan, PEOPLES R CHINA
会议主办单位：
[Zhong LiuQiang;Shu Shi] Xiangtan Univ, Sch Math & Computat Sci, Xiangtan 411105, Peoples R China.^[Zhong LiuQiang;Shu Shi] Hunan Key Lab Computat & Simulat Sci & Engn, Xiangtan 411105, Peoples R China.^[Sun Dudu] Chinese Acad Sci, Grad Univ, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing 100190, Peoples R China.^[Tan Lin] Nanhua Univ, Dept Math Phys, Hengyang 421001, Peoples R China.
关键词：
preconditioner;higher order edge finite element;stable decomposition
摘要：
In this paper, we are concerned with the fast solvers for higher order edge finite element discretizations of Maxwell’s equations. We present the preconditioners for the first family and second family of higher order Nédélec element equations, respectively. By combining the stable decompositions of two kinds of edge finite element spaces with the abstract theory of auxiliary space preconditioning, we prove that the corresponding condition numbers of our preconditioners are uniformly bounded on quasi-uniform grids. We also present some numerical experiments to demonstrate the theoretical results.
期刊：
Analytical and Bioanalytical Chemistry,2009年393(8):2075-2080 ISSN：1618-2642
通讯作者：
Xie, HL
作者机构：
[Fu, Liang] College of Chemistry and Chemical Engineering, Nanhua University, Hengyang 410001, China;[Xie, Hualin; Huang, Kelong] School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;[Nie, Xidu; Liu, Jinchun] Department of Chemistry, Hunan Institute of Technology, Hengyang 421008, China
通讯机构：
[Xie, Hualin] School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
会议名称：
15th Biennial Conference on Applied Surface Analysis
会议名称：
3rd International Conference on Impulsive Dynamical Systems and Applications
会议时间：
JUL 21-23, 2006
会议地点：
Qingdao, PEOPLES R CHINA
会议主办单位：
Guangxi Univ, Coll Comp & Elect Informat, Nanning 530004, Peoples R China.^Nanhua Univ, Sch Math & Phys, Hunan 420003, Peoples R China.
摘要：
In this paper, the basic definitions of inner-product and outer-product of Vague set are introduced. Based on that, some characters of them are brought forward and the particular proof are presented afterward.
作者机构：
[Zhao, Guodong; Zhang, Yan; Yang, Zhu; Liu, Yong; Lou, Yalong] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Zhao, Guodong; Zhang, Yan; Yang, Zhu; Liu, Yong; Peng, Guowen; Lou, Yalong] Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.;[Peng, Guowen] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
3rd International Conference on Environmental Science and Material Application (ESMA)
会议时间：
NOV 25-26, 2017
会议地点：
Chongqing, PEOPLES R CHINA
会议主办单位：
[Lou, Yalong;Liu, Yong;Zhao, Guodong;Zhang, Yan;Yang, Zhu] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.^[Lou, Yalong;Liu, Yong;Peng, Guowen;Zhao, Guodong;Zhang, Yan;Yang, Zhu] Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.^[Peng, Guowen] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
A year-long monitoring of gamma radiation effective dose rate and radon concentration had been done in the reservoir area of one uranium tailings pond in Hunan province (The monitoring area included indoor and outdoor area of residential buildings and workshops, tailings dam slope). Afterwards, the annual effective radiation dose of the people in that radiation environment had been calculated based on the results of monitoring, as well as a radiation risk assessment. According to the assessment, gamma radiation effective dose rate and radon concentration in the monitoring area were low, and the annual effective radiation dose was far below the international standard (30mSv), which showed that the radiation would not put the people's health at risk. However, the annual effective radiation dose of gamma was far above that of radon in the area of uranium tailings pond; therefore, it's advisable to take quarantine measures in in the area of uranium tailings pond to keep the surrounding residents away from unnecessary ionizing radiation.
期刊：
The Journal of Sex Research,2003年40(3):230-236 ISSN：0022-4499
通讯作者：
Bullough, VL
作者机构：
[Vern L. Bullough] State University of New York, Distinguished Professor Emeritus in history and sociology ;[Vern L. Bullough] Professor Emeritus, California State University , Northridge;[Vern L. Bullough] Teaches sexology as an adjunct professor in the nursing school , University of Southern California ;[Vern L. Bullough] Fellow in the Medieval and Renaissance Center , UCLA ;[Vern L. Bullough] 3304 West Sierra Dr., Westlake Village, CA, 91362 E-mail: vbullough@adelphia.net
通讯机构：
[Bullough, VL] 3304 W Sierra Dr, Westlake Village, CA 91362 USA.
会议名称：
Meeting of the Eastern-Region of the Society-for-the-Scientific-Study-of-Sexuality
会议时间：
APR, 2003
会议地点：
BALTIMORE, MD
会议主办单位：
SUNY, New York, NY USA.^Univ So Calif, Northridge, CA 90089 USA.
摘要：
John Money has been a dominant voice in sexology in the last part of the 20th century, breaking new ground in a wide variety of areas. In the process, he has been cantankerous, outspoken, and ever willing to do battle, but also original and thought provoking. This paper begins with an examination of science in general, moves on to psychology and sexology, and then examines Money's contributions to sexology in some detail. The latter are many and varied, including the development of the concept of gender, his theory of gender identity based on his work with intersex individuals, the John‐Joan case, and his importance in establishing transsexualism as a diagnostic category and an academic discipline. Also important are his contributions to the development of the nomenclature of sexology, his importance to the sexology movement as a teacher, his significant research on a large variety of sexual topics, his ability to convince government agencies that sex was deserving of funding, and his association with the Erickson Educational Foundation. He also was a significant figure in the development of the Society for the Scientific Study of Sexuality (SSSS) and in raising the standard of its journal (The Journal of Sex Research), and therefore it is only fitting that an award be named after him. Though Money remains controversial, he has contributed significantly to the development of sexology as a discipline.
期刊：
Physica E: Low-Dimensional Systems and Nanostructures,2008年40(7):2400-2405 ISSN：1386-9477
通讯作者：
Peng, ZH
作者机构：
[Peng Jingcui; Ou Yangyu; Peng Zhihua] School of Physics and Microelectronics Science, Hunan University, Changsha, 410082, China;[Peng Yanfeng] College of Physics and Information Science, Hunan Normal University, Changsha, 410081, China;[Ning Yantao; Peng Zhihua] School of Mathematics and Physics, University of South China, Hengyang, 421001, China
通讯机构：
[Peng Zhihua] Univ S China, Sch Math & Phys, Hengyang 421001, Peoples R China.
会议名称：
Symposium on Electron Transport in Low-Dimensional Carbon Structures/Science and Technology of Nanotubes and Nanowires
会议时间：
MAY 28-JUN 01, 2007
会议地点：
Strasbourg, FRANCE
会议主办单位：
[Peng Zhihua;Ning Yantao] Univ S China, Sch Math & Phys, Hengyang 421001, Peoples R China.^[Peng Zhihua;Peng Jingcui;Ou Yangyu] Hunan Univ, Sch Phys & Microelect Sci, Changsha 410082, Peoples R China.^[Peng Yanfeng] Hunan Normal Univ, Coll Phys & Informat Sci, Changsha 410081, Peoples R China.
期刊：
JOURNAL OF BIOMEDICAL NANOTECHNOLOGY,2009年5(5):521-527 ISSN：1550-7033
通讯作者：
Yuan, YL
作者机构：
[Guo, Jianbo; Ding, Jianqiang] School of Public Health, University of South China, Hengyang 421001, China;[Xu, Jinsheng] Department of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China;[Deng, Jian; Yuan, Yali] School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
通讯机构：
[Yuan, Yali] Univ S China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
会议名称：
3rd International Symposium on Biomedical Engineering, Bioanalysis and Nanotechnology
会议时间：
JUN 08-10, 2008
会议地点：
Hunan Univ, Dept Sci & Technol, Hunan, PEOPLES R CHINA
会议主办单位：
[Yuan, Yali;Deng, Jian] Univ S China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.^[Ding, Jianqiang;Guo, Jianbo] Univ S China, Sch Publ Hlth, Hengyang 421001, Peoples R China.^[Xu, Jinsheng] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
会议名称：
4th Aegean Workshop on Complement Associated Diseases, Animal Models and Therapeutics
会议时间：
JUN 10-17, 2007
会议地点：
Porto Heli, GREECE
会议主办单位：
[Tuezuen, Erdem] Univ Istanbul, Dept Neurol, Istanbul, Turkey.^[Li, Jing;Yang, Huan] Cent S China Univ, Dept Neurol, Changsha, Hunan, Peoples R China.^[Saini, Shamsher S.;Christadoss, Premkumar] Univ Texas Galveston, Med Branch, Dept Microbiol & Immunol, Galveston, TX 77550 USA.
会议论文集名称：
Advances in Experimental Medicine and Biology
摘要：
Mice deficient for classical complement pathway (CCP) factor C4 are resistant to antibody and complement mediated experimental autoimmune myasthenia gravis (EAMG). Anti-C1q antibody administration before or following acetylcholine receptor immunization suppresses EAMG development by reducing lymph node cell IL-6 production and neuromuscular junction IgG, C3 and C56-C9 deposition. This effect is achieved by treating mice with 10 mu g of anti-C1q antibody, twice weekly for 4 weeks. Treatment with a higher amount of anti-C1q antibody gives rise to increased serum anti-acetylcholine receptor antibody, immune complex and C3 levels, facilitates kidney C3 and IgG deposits and thus reduces the treatment efficacy. C4 KO and anti-C1q antibody treated mice display normal immune system functions and intact antibody production capacity. Furthermore, CCP inhibition preserves alternative complement pathway activation, which is required for host defense against microorganisms. Therefore, CCP inhibition might constitute a specific treatment approach for not only myasthenia gravis but also other complement mediated autoimmune diseases.
作者机构：
[Xie, Yanshi; Zeng, Sheng; Liu, Yan; Tan, Kaixuan; Liu, Zehua] School of Nuclear Resource and Safety Engineering, University of South China, Hengyang, Hunan 421001, China;[Rieser, Uwe] School of Geography, Environment and Earth Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
通讯机构：
[Tan, Kaixuan] Univ S China, Sch Nucl Resource & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
12th International Conference on Luminescence and Electron Spin Resonance
会议时间：
SEP 18-22, 2008
会议地点：
Peking Univ, Beijing, PEOPLES R CHINA
会议主办单位：
[Tan, Kaixuan;Liu, Zehua;Zeng, Sheng;Liu, Yan;Xie, Yanshi] Univ S China, Sch Nucl Resource & Safety Engn, Hengyang 421001, Hunan, Peoples R China.^[Rieser, Uwe] Victoria Univ Wellington, Sch Geog Environm & Earth Sci, Wellington, New Zealand.
关键词：
Quartz;Thermoluminescence;3-D spectra;Altay orogenic belt
期刊：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2011年11(3):2389-2397 ISSN：1533-4880
通讯作者：
Chen, CY
作者机构：
[Ge, Cuicui; Li, Wei; Du, Jiangfeng; Qiu, Yang; Liu, Ying; Chen, Chunying; Li, Yufeng] CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, National Center for Nanoscience and Technology of China, Beijing 100190, China;[Ge, Cuicui; Li, Wei; Gao, Yuxi; Chai, Zhifang; Chen, Chunying; Li, Bai; Li, Yufeng] CAS Key Laboratory for Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China;[Du, Jiangfeng] School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
通讯机构：
[Chen, Chunying] Inst High Energy Phys, CAS Key Lab Biol Effects Nanomat & Nanosafety, Beijing 100190, Peoples R China.
会议主办单位：
(1) CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, National Center for Nanoscience and Technology of China, Beijing 100190, China; (2) CAS Key Laboratory for Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China; (3) School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
关键词：
Analytical results - Carbonaceous impurities - Catalyst residues - Catalyst-free - Clean up - Conventional acids - Impurity element - Large-scale production - Metal content - Metal impurities - Metallic impurity - Neutron activation - Physicochemical property - Post-fabrication - Post-production - Potential applications - Systematic analysis
期刊：
JOURNAL OF APPLIED PHYSICS,2012年111(11) ISSN：0021-8979
通讯作者：
Cao, Can
作者机构：
[Chen, Ling-Na; Cao, Can; Long, Meng-Qiu; Xu, Hui] School of Physics and Electronics, Central South University, Changsha 410083, China;[Huang, Wei-Rong] School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410004, China;[Chen, Ling-Na] School of Computer Science and Technology, University of South China, Hengyang 421001, China
通讯机构：
[Cao, Can] Cent S Univ, Sch Phys & Elect, Changsha 410083, Peoples R China.
会议主办单位：
(1) School of Physics and Electronics, Central South University, Changsha 410083, China; (2) School of Computer Science and Technology, University of South China, Hengyang 421001, China; (3) School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410004, China
关键词：
3d transition - Doping effects - Electronic transport properties - Graphene nanoribbons - Molecular junction - Nanospintronics - Non-equilibrium Green's function - Spin-down - Spin-up
摘要：
By using non-equilibrium Green's functions in combination with the density-functional theory, we investigate the spin transport properties of molecular junctions based on 3d transition terminated zigzag graphene nanoribbons. The results show that the electronic transport properties are strongly depending on the type of terminated atom at the edge of ribbon. The currents of spin-up and spin-down display different behaviors, and the spin-filter effects can be observed. These unconventional doping effects could be used to design novel nanospintronics devices. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4723832]
期刊：
Transactions of Nonferrous Metals Society of China,2008年18(6):1529-1532 ISSN：1003-6326
通讯作者：
WANG, Q.-l.(nhdxwql@yahoo.com)
作者机构：
[Run-lan YU; Qing-liang WANG; Guan-zhou QIU] School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China;[E-ming HU; De-xin DING; Qing-liang WANG] Key Discipline Laboratory of National Defence for Biotechnology in Uranium Mining and Hydrometallurg, University of South China, Hengyang, 421001, China
通讯机构：
[Wang Qing-liang] Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China.
会议名称：
24th International Mineral Processing Congress (IMPC)
会议时间：
SEP 24-28, 2008
会议地点：
Beijing, PEOPLES R CHINA
会议主办单位：
[Wang Qing-liang;Yu Run-lan;Qiu Guan-zhou] Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China.^[Wang Qing-liang;Ding De-xin;Hu E-ming] Univ S China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.
关键词：
sulfate reducing bacteria;in-situ leaching of uranium;radioactively contaminated groundwater;bioremediation
摘要：
In the case of in-situ leaching of uranium, the primitive geochemical environment for groundwater is changed since leachant is injected into the water bearing uranium deposit. This increases the concentration of SO_4~(2-), uranium and other heavy metal ions and results in the groundwater contamination. The effects of pH values of the simulated solution on the reduction of SO_4~(2-) and the removal of uranium and other heavy metal ions by sulfate reducing bacteria(SRB) were studied. The results show that, when the pH value of the simulated solution is about 8, the reduction rate of SO_4~(2-) by SRB and the removal rate of uranium, Mn~(2+), Zn~(2+), Pb~(2+) and Fe~(2+) will reach their highest values. A bioremediation technique for remediation of groundwater in in-situ leaching uranium mine can be developed.
会议名称：
International Mining Forum 2010: Mine Safety and Efficient Exploitation Facing Challenge of the 21st Century
会议时间：
SEP 19-22, 2010
会议地点：
Huainan, PEOPLES R CHINA
会议主办单位：
[Zeng Sheng;Tan Kai-xuan;Qu Hui-qiong] Univ S China, Sch Nucl Resources & Nucl Fuel Engn, Hengyang 421001, Peoples R China.
关键词：
in situ leaching uranium;green mining of ore deposits;structure of ore rock;fractal feature
摘要：
The in situ leaching uranium is environmentally friendly mining technique that contains mining, mineral processing and metallurgical technology, in which the leaching solution is directly injected into underground ore bed and the useful metal or compound is obtained through reaction between solutions and minerals. The ore-bearing strata pore structure feature and ore rock particle distribution directly affect the leaching rate of useful components. In order to study the ore-bearing strata ore rock structure feature and its effect on in situ leaching uranium, based on analysis of mercury penetration test data of a certain uranium deposit with rock samples, several relative parameters are determined including porous radius size and distribution, porosity distribution. Using fractal theory, porous structure characteristics and variation of this ore-bearing and strata was analyzed, fractal characteristics of porous structure was discussed, and pore structure characteristics of this ore-bearing strata was further studied with scanning electron microscope. The results show that fractal characteristics of porous structure is regional, the fractal dimension can quantitatively describe heterogeneity of pore structure, the more the fractal dimension, the stronger the heterogeneity of porosity distribution, the more complicated the pore structure, and the less the porosity of ore rock. This is harmful for uranium leaching.
