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The qanats of Xinjiang:historical development, characteristics and modern implications for environmental protection

Journal of Arid Land 2012年第2期4卷 211-220页

作者： WenJun HU1 ,2,JieBin ZHANG 3.YongQiang LIU 1 1Hohai University,Nanjing 210098,china 2The International Economic&Technical Cooperation and Exchange Center,Ministry of Water Resources,Beijing 100053. china 3.Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 83.011,china Hohai University Nanjing 210098 China The International Economic Technical Cooperation and Exchange Center Ministry of Water Resources Beijing 100053 China Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China

In china,qanats(kan’erjing/karez)exist only in Xinjiang Uygur autonomous region,being one form of traditional irrigation technology that made great contributions to oasis *** are different opinions on the origin and date of the qanats in Xinjiang due to a lack of adequate *** uncontrolled over-exploitation of groundwater by pumping wells,as well as the expansion of surface water interventions nowadays,has caused serious impacts on not only the qanats,but also local ecological *** exist long-time arguments on whether the qanats should be restored or *** study aimed to examine the historical development, geological conditions and characteristics,and modern implications of the qanats for oasis environmental protection, and to discuss the initiatives taken by local *** whole Xinjiang Uygur autonomous region was included as the study area,with a specific focus on Turpan *** materials and data were obtained from literature review and governmental *** on a systematic examination of three prevailing theories on the origination of Xinjiang’s qanats,it is suggested modern archaeological techniques could be good solutions to explore the origination in addition to historical records used *** qanats fail to fully meet today’s enormous water demands,their rich historical,cultural,ecological and environmental implications in arid areas should not be *** a cultural heritage and ecologically-friendly engineering creation,qanat systems shall be kept in good condition and function by a valuable *** initiatives to protect and restore target qanat systems in Xinjiang could provide positive examples for the practices in other regions of the world where the protection and restoration of qanats or similar technologies are desired.

关键词： arid areas qanat(kan’erjing/karez) groundwater environmental protection oasis Xinjiang

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INTERACTION　OF　AMINO　ACID　WITH　ION　EXCHANGERESIN　Ⅲ．FURTHER　INVESTIGATION　OF　SUPEREQUIVALENT　ADSORPTION　MECHANISM　OF　AMINO　ACID　ON　ION　EXCHANGE　RESIN

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Chinese Journal of Reactive Polymers 1994年第1期3卷 96-104页

作者： ZHANG Hui SHAO Tong SHENG Fenling TAO Zuyi (Department of modern physics and Centre of Analysis and Testing, {3. University,{3., 73.000, china)

The adsorption isotherms of glycine, alanine and oxidized glutathion on strong acid cation and strong base anion exchange resins from aqueous solutions were measured and the superequivalent adsorptions of glycine and alanine observed. The infrared spectra of glycine adsorbed on the canon and the anion exchange resins, 001 × 7 and 201 × 7. were measured. From these results, it is concluded that foe amino acid adsorption on the ion exchange resin proceeds not only through ion exchange and proton transfer mechanisms, but also through aminecarboxylate interaction between foe ads orbed amino acid molecules, and theformation of second layer of amino acid molecules is the mechanism of superequivalent adsorption of amino acid. the carboxylate or amine groups of the first layer of amino acid molecules on the ion exchange resin act as the exchange sites for the second layer of amino acid molecules.

关键词：氨基酸离子交换树脂相互作用等量吸附机理

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中能重离子碰撞过程中的同位旋分馏

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物理学进展 2004年第2期24卷 127-137页

作者：邢永忠郭文军刘建业兰州重离子加速器国家实验室原子核理论中心中国科学院近代物理研究所兰州730000

　本文主要在我们近几年来对中能重离子碰撞中同位旋分馏研究工作的基础上,结合国际上对这个问题研究的进展。对同位旋分馏动力学,产生同位旋分馏的机制,入射道效应,特别是建议将同位旋分馏强度作为提取同位旋相关平均场和建立同位旋不... 详细信息

　本文主要在我们近几年来对中能重离子碰撞中同位旋分馏研究工作的基础上,结合国际上对这个问题研究的进展。对同位旋分馏动力学,产生同位旋分馏的机制,入射道效应,特别是建议将同位旋分馏强度作为提取同位旋相关平均场和建立同位旋不对称核物质状态方程的可能性进行了讨论和分析。并进一步对该问题的深入研究进行了讨论。

关键词：中能重离子碰撞同位旋分馏同位旋物理分馏强度同位旋不对称核物质状态方程

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New heavy neutron-rich isotope ^(23.)Th

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Nuclear Science and Techniques 1999年第2期10卷 65-68页

作者： XU Yanbing YUAN Shuanggui YANG Weifan LI Zongwei MA Taotao XIONG Bing HE Jianjun(Institute of modern physics, the Chinese Academy of Sciences, lanzhou 73.000) Institute of modern physics Chinese Academy of Sciences Lanzhou 730000 China

A new nuclide (23.)Th has been produced via multinucleon transferreaction by 60 MeV/u 18O ion irradiation of the natural uranium. The thorium wasradiochemically separated from the fixture of uranium and reaction products. Theactivity of thorium was measured by using an HPGe detector and a planar HPGedetector. The 23.Th has been identified for the first time by measuring the growthand decay of the 7-rays from its daughter 23.Pa. The half-life of 23.Th was determinedto be 9.4f2.0 min. In addition, a new 7-ray of 89.010.3.keV with TI/2=8.911.5minwas found in the 7 spectrum gated with X-rays of Pa and assigned to 23.Th P-- decaybased on measurements of transition energy and half life.

关键词：富中子同位素 ^23.Th 多核子迁移反应

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Activation Cross Section Measurements for 93.b（n,2n）92gNb Reaction Induced by 14 MeV Neutron

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中国核科技报告 1999年第S1期 12-16页

作者： Li Gongping Kong Xiangzhong Yang Jingkang (Department of modern physics, {3. University, {3., 73.000)

The cross section for the93.b（n,2n）92gNb reaction is measured by activation method. The experimental result is 13.5±149 mb at the neutron energy of 14.6±0.3.MeV. And the excitation curve of93.b（n,2n）92gNb reacti... 详细信息

关键词： Activation Cross Section Measurements for Nb Reaction Induced by 14 MeV Neutron n,2n Nb

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原子核多体关联动力学——量子多体理论的一种非微扰途径

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物理学进展 1996年第1期16卷 99-138页

作者：王顺金左维郭华兰州大学现代物理系中国科学院近代物理研究所北京大学物理系

本文从原子核物理学的实验事实和理论经验出发，阐述了原子核及量子多体关联动力学的基本物理思想与理论方法，介绍了它的主要的理论结论和重要的应用成果。文章侧重于物理思想深入浅出的陈述和理论结果的诠释，包含了量子场的关联动力... 详细信息

本文从原子核物理学的实验事实和理论经验出发，阐述了原子核及量子多体关联动力学的基本物理思想与理论方法，介绍了它的主要的理论结论和重要的应用成果。文章侧重于物理思想深入浅出的陈述和理论结果的诠释，包含了量子场的关联动力学的最新结果和对量子关联动力学应用前景的展望。

关键词：原子核量子多体动力学关联动力学

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Geochemical characteristics of organic matter-rich strata of lower Cambrian in Tarim Basin and its origin

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Science china Earth Sciences 2004年第Z2期47卷 125-132页

作者： CHEN Jianfa1, SUN Shengli2, LIU Wenhui3.& ZHENG Jianjing3.1. Petroleum University, Beijing 102249, china 2. Zhanjiang Ocean University, Zhanjiang 524025, china 3. lanzhou Institute of Geology, Chinese Academy of Sciences, {3., china Petroleum University Beijing 102249 China Zhanjiang Ocean University Zhanjiang 524025 China lanzhou Institute of Geology Chinese Academy of Sciences Lanzhou 730000 China

The organic matter-rich strata of the Yurtusi Formation of Lower Cambrian are wildly spread and steady in the Tarim Basin, in which cherts are developed, companied with phos-phorite. Al/(Al+Fe+Mn) ratio and Si/(Si+Al+Fe) ratio of cherts range from 0.0023.to 0.0046 and 0.965 to 0.98, respectively, suggesting that cherts are formed in submarine hydrothermal activity and far away from terrestrial. Trace elements, such as As, Hg, Pb, Zn, Cu, Co, P, V, Ba, etc., are markedly rich in organic matter-rich sedimentary rocks of which Ba/Sr ratios are between 21.2 and 158.1. Compared with modern hydrothermal sediments, their Ba/Sr ratios are similar, it in-dicates that the organic matter-rich strata have the geochemical feature of submarine hydro-thermal sediments. The total content of rare earth elements (SREE) in cherts is from 8.81 to 56.682 mg/g, on average 3..41 mg/g and the SREE of cherts is between continental margin cherts and abyssal cherts. The LREE/HREE ratio of cherts varies from 1.01 to 3.56, which re-veals the characteristics of hydrothermal sediments. There is positive correlation between the total organic content (TOC) and Ba/Sr ratio which is geochemical index of submarine hydro-thermal activity, which indicates that the submarine hydrothermal activity obviously influences the richness of organic matter in the Yurtusi Formation.

关键词： Tarim Basin, Yurtusi Formation, organic matter-rich strata, submarine hydrothermal activity.

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THE　EFFECTIVE　CHARGE　EFFECT　OF　PARTIALLY　STRIPPED　Oq+ION　IN　COLLISION　WITH　HELIUM

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原子与分子物理学报 1997年第1期 16-21页

作者： Cai Xiaohon a,b Liu Zhaoyuan b Chen Ximeng b Shen Ziyong b Ma Xinwen a Liu Huiping a Hou Mingdong a aInstitute of modern physics, Academia Sinica, P.O. Box 3., lanzhou 73.000 P.R.{3. bDepartment of modern physics, Lanz

ＡＢＳＴＲＡＣＴＴｏｉｎｖｅｓｔｉｇａｔｅｔｈｅｅｆｅｃｔｉｖｅｃｈａｒｇｅｅｆｅｃｔｉｎｐａｒｔｉａｌｙｓｔｒｉｐｐｅｄｉｏｎｈｅｌｉｕｍｃｏｌｉｓｉｏｎｓｎｅｗｍｅａｓｕｒｅｍｅｎｔｓｏｆｔｈｅｄｏｕｂｌｅａｎ... 详细信息

ＡＢＳＴＲＡＣＴＴｏｉｎｖｅｓｔｉｇａｔｅｔｈｅｅｆｅｃｔｉｖｅｃｈａｒｇｅｅｆｅｃｔｉｎｐａｒｔｉａｌｙｓｔｒｉｐｐｅｄｉｏｎｈｅｌｉｕｍｃｏｌｉｓｉｏｎｓｎｅｗｍｅａｓｕｒｅｍｅｎｔｓｏｆｔｈｅｄｏｕｂｌｅａｎｄｓｉｎｇｌｅｉｏｎｉｚａｔｉｏｎｃｒｏｓｓｅｃｔｉｏｎｒａｔｉｏｓｏｆｈｅｌｉｕｍｂｙｐａｒｔｉａｌｙｓｔｒｉｐｐｅｄｏｘｙｇｅｎｉｏｎｓｈａｖｅｂｅｅｎｍａｄｅｆｏｒｐｒｏｊｅｃｔｉｌｅｃｈａｒｇｅｓｔａｔｅｓｒａｎｇｉｎｇｆｏｒｍ＋１ｔｏ＋４，ｉｍｐａｃｔｅｎｅｒｇｉｅｓｆｒｏｍ１．５ＭｅＶｔｏ７．５ＭｅＶ．Ｉｔｉｓｆｏｕｎｄｔｈａｔｔｈｅｅｆｅｃｔｉｖｅｃｈａｒｇｅｑｅｆｆｉｎｃｒｅａｓｅｓａｓｔｈｅｉｍｐｉｎｇｉｎｇｅｎｅｒｇｙｉｎｃｒｅａｓｅｓａｎｄｑｅｆｆｓｈｏｗｓａｍｏｄｅｓｔｄｅｐｅｎｄｅｎｃｅｕｐｏｎｔｈｅｐｒｏｊｅｃｔｉｌｅｃｈａｒｇｅｓｔａｔｅｉｎｔｈｅｐｒｅｓｅｎｔｅｎｅｒｇｙｒａｎｇｅ．Ｔｈｅｐｒｏｊｅｃｔｉｌｅｃｈａｒｇｅｓｔａｔｅ，ｐｒｏｊｅｃｔｉｌｅａｎｄｔａｒｇｅｔｅｌｅｃｔｒｏｎｉｃｓｔａｔｅｄｅｐｅｎｄｅｎｃｅｓｏｆｔｈｅｅｆｅｃｔｉｖｅｃｈａｒｇｅｅｆｅ

关键词： COLLISION WITH HELIUM EFFECT CHARGE

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Discovery of seep carbonate nodules as new evidence for gas venting on the northern continental slope of South china Sea

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Chinese Science Bulletin 2006年第10期51卷 1228-1237页

作者： CHEN Zhong1,2,3. YAN Wen1,2,3. CHEN Muhong1,3. WANG Shuhong1,2,3. LU Jun1,3. ZHANG Fan1,3. XIANG Rong1,3. XIAO Shangbin1,3. YAN Pin1,2,3.& GU Senchang1,2,3.1. South china Sea Institute of Oceanology, Chinese Academy of Sci-ences, Guangzhou 5103.1, china 2. Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 5103.1, china 3. Key Laboratory of Marginal Sea Geology, South china Sea Institute of Oceanology and Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 5103.1, china South china Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou China Guangzhou Center for Gas Hydrate Research Chinese Academy of Sciences Guangzhou China Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology and Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China

Seep carbonate nodules were firstlycollected from the southwestern Dongsha area onnorthern continental slope of South china Sea formineralogical and geochemical studies. The resultsof X-ray diffraction show that carbonate nodules arecomposed of Fe-rich domolite,siderite and a few cal-cite and aragonite, as well as a small quantity ofnon-carbonate minerals such as goethite, quartz andclay minerals. Fe-rich dolomite and siderite charac-terized by euhedral microcrystalline structure weredirectly precipitated at cold seeps. The δ 13. valuesfor Fe-rich dolomite and siderite in the bulk nodulesvary from ?18.24‰ to ?3..07‰, and the δ 18O valuesrange from 0.42 to 2.76‰. Their moderate depleted13. reflects that carbon origin is possibly thermoge- netic gas or mixed gas, which is evidence of gasventings in the seafloor. Moreover, massive wormtube fossils related to cold seeps were found on thesurfaces of carbonate nodules, and the conduitsand/or channels in semi-solidified nodules whichwere not filled by carbonate or sediment were alsoobserved. A preliminary conclusion is that activemicro gas venting with a conduit/channel diameterrange from 200 μm to 600 μm possibly exists inmodern seafloor of the carbonate nodule area.

关键词：渗出碳酸盐节碳氧同位素甲烷渗漏天然气水化物

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Solutions of Non-Autonomous Quantum Systems with Symplectic Algebraic Structure

Solutions of Non-Autonomous Quantum Systems with Symplectic ...

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中国数学力学物理学高新技术交叉研究会第9届学术研讨会

作者： Jie Quanlin~1 Wang Shunjin~(1,2,3. (1.Institute of modern physics,Southwest Jiaotong University Chengdu 61003. china 2.D{3. of modem physics,lanzhou University lanzhou 73.000 china 3.Center of Theoretical physics,CCAST(World Laboratory)Beijing china.)

＜正＞Based on the structure of sub-algebraic chain of sp（2N）Lie algebra,we obtain solutions of a non-autonomous quantum system with Hamiltonian that can be treated as a linear function of generators of an sp（2N）symplectic *** Hamiltonian is transformed into a function of commutable Cartan operators by a set of gauge *** solutions of the equations of motion are obtained from the inverse gauge transformations. An sp（4）model describing a charged particle in a Paul trap interacting with a single mode of electromagnetic field serves as an illustration.

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