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Science china Earth sciences 2006年第5期49卷 554-560页

作者： FAN Ke1,2.3 & wang Huijun2.1. Nansen-Zhu International Research Center, institute of Atmospheric Physics, {2. academy of sciences, Beijing 10002., china 2. Department of Atmospheric Science, Yunnan University, Kunming 650091, china 3. Graduate University of the {2. academy of sciences, Beijing 100049, china 1. Nansen-Zhu International Research Center Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China 2. Department of Atmospheric Science Yunnan University Kunming 650091 China 3. Graduate University of the chinese academy of {2. Beijing 100049 China

The interannual variability of Antarctic Oscillation (AAO) and its influence on East Asian climate during both boreal winter and spring are addressed. The results show that the positive AAO anomaly decreases the cold activity over East Asia during both boreal winter and spring. AAO-related barotropic meridional teleconnection from Antarctic to Arctic is found through analysis of mean me- ridional circulations. This meridional teleconnection is remarkable over Eurasia during boreal winter and over the Pacific Ocean during boreal spring. The results also show that zonal mean zonal wind at high latitudes in Southern Hemisphere has well positive correlation with that of Eurasia during boreal winter and has negative correlation with Pacific North American teleconnection (PNA) during boreal spring, which again display the meridional teleconnection. Thus, local meridional teleconnection is a possible linkage for interaction of circulations at mid-high latitudes between both hemispheres.

关键词： Antarctic Oscillation, Eurasian west wind, meridional teleconnection, mean meridional circulation.

Photoresponsive organogel and organized nanostructures of cholesterol imide derivatives with azobenzene substituent groups

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Progress in Natural Science:Materials International 2012年第1期22卷 64-70页

作者： Tifeng Jiao a,b,c,Yujin wang a,Fengqing Gao a,Jingxin Zhou a,Faming Gao a a Hebei key {2. of Applied Chemistry,College of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao 066004,china b College of Chemistry & Materials Engineering,Wenzhou University,Wenzhou 32.02.,china c State key {2. of Solid Lubrication,lanzhou institute of Chemical Physics,chinese academy of sciences,lanzhou 73.000,china [a] Hebei key laboratory of Applied Chemistry College of Environmental and Chemical Engineering Yanshan University Qinhuangdao 066004 China [b] College of Chemistry & Materials Engineering Wenzhou University Wenzhou 325027 China [c] State key laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China

Two new cholesterol imide derivatives with azobenzene substituent groups have been *** compounds possess headgroups of hydrogen or methyl units,*** gelation test revealed that a subtle change in the headgroup of azobenzene segment produced a dramatic change in the gelation behavior of both *** compound with headgroups of hydrogen units only gelated N,N-Dimethylformamide(DMF),while the other compound with headgroups of methyl units cannot gelate any solvent tested *** DMF gel and solution of the gelator,the reversible photoisomerization transitions by irradiation with ultraviolet(UV) and visible light are investigated by UV-vis absorption spectra,Fourier transform infrared spectrometer,scanning electron microscope,atomic force microscope,and X-ray diffraction *** UV irradiation of the gel,trans-cis photoisomerization of the azobenzene groups occurs,the change in molecular polarity leads to the breaking of van der Waals interactions,resulting in the gel-sol *** gel can be recovered by the reverse cis-trans photoisomerization after exposure to visible *** and spectral studies reveal that the gelator molecules selfassemble into one-dimensional fibers,which further crossed-linked to form regular *** results afford useful information for the development of new versatile low molecular mass gelators and soft matter.

关键词： Organogel Cholesterol Azobenzene Photoisomerization Soft material

Genetic differentiation of Wolffia globosa in china

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Journal of Systematics and Evolution 2011年第6期49卷 509-517页

作者： 1,2.un-Xia YUAN 1Jin PAN 1Bao-Sheng wang 1Da-Ming ZHANG 1(State key {2. of Systematic and Evolutionary Botany,institute of Botany,chinese academy of sciences,Beijing 100093,china) 2.Graduate University of chinese academy of sciences,Beijing 100049,china) (State key laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China) (Graduate University of chinese academy of {2. Beijing 100049 China) *Correspondence: Da-Ming ZHANG *Correspondence: E-mail: zhangdm@*** Tel.: 86-10-62.36492 Fax: 86-10-62.90843.

Wolffia Horkel ex Schleid.(Lemnaceae) includes the world’s smallest ***,their bodies are extremely simplified,making classification difficult and *** reports about the genetic structure of these clonal-dominant aquatic plants have been published until *** this study,of 2.7 samples from 42.populations spanning representative locations in china,two chloroplast haplotypes(glo-cp and un-cp) and 66 amplified fragment length polymorphism genotypes were *** on wide sampling,cpDNA haplotypes,and amplified fragment length polymorphism profiles,we found that there are two genetic lineages(glo-and unlineages) of Wolffia species in *** and genetic diversity of Wolffia species are high compared with other clonal plants(Simpson’s index,D = 0.97;Nei’s diversity,H = 0.1835).Different spatial structure patterns were detected between glo-and *** autocorrelation at short distances(1500 km) were detected within the glo-lineage,but no significant spatial genetic structure was detected beyond 100 km within the ***,spatial genetic analysis of *** revealed significant autocorrelation within short distances,indicating that restricted gene flow might be one of the most important factors in shaping genetic structure.

关键词： AFLP chloroplast DNA genetic differentiation spatial genetic structure Wolffia.

Sulfur isotope geochemistry of the Lemachang independent Ag deposit, northeastern Yunnan——A concurrent discussion on the mechanism of sulfur isotope equilibrium between barite and freibergite below 300℃

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chinese Science Bulletin 1999年第S2期44卷 227-230页

作者： DENG Hailin~1, LI Chaoyang~1, ZHOU Yunman~2.and wang Congwu~2.1. Open laboratory of Ore Deposit {2., institute of {2., chinese academy of sciences, Guiyang 550002. china 2. No.3 Braneh of No.1 geology Party, Yunnan Bureau of geology and Mineral Resources, Xundian 6552.5, china Open laboratory of Ore Deposit geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China No. 3 Branch No. 1 Geology Party Yunnan Bureau of Geology and Mineral Resources Xundian 655205 China

IN the study of hydrothermal deposits sulfur isotopes bear much information about the source of sulfur,ore-forming temperature, the evolution of ore-forming fluids and the mechanism of metallogenesis. Todetermine whether sulfur isotopes reach equilibrium between fluids and sulfur-bearing minerals precipitated from the former and among the sulfur-bearing minerals is the key to the application of sulfur isotopegeochemistry to geological problems. As it has been commonly accepted that sulfur isotopic equilibrium could not be reached between sulfate and sulfide below 350℃, little attention has been paid to thepossible mechanism of sulfur isotope equilibrium between sulfate and sulfide below 300℃. However, this note presents an example to show sulfur isotope equilibrium between barite and sulfate

关键词： sulfur isotope Lemachang independent Ag deposit barite freibergite sulfur isotope equilibrium below 300℃.

Organic single crystals or crystalline micro/nanostructures: Preparation and field-effect transistor applications

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Science china Chemistry 2010年第6期53卷 1225-1234页

作者： FU XiaoLong,wang ChengLiang,LI RongJin,DONG HuanLi & HU WenPing Beijing National laboratory for Molecular {2.,key laboratory of Organic Solids,institute of Chemistry,chinese academy of {2.,Beijing 100190,china 1. Beijing National laboratory for Molecular sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Organic single crystals hold great promise for the development of organic semiconductor materials,because they could reveal the intrinsic electronic properties of these materials,providing high-performance electronic devices and probing the structureproperty *** article reviews the preparation methods for organic single crystals or crystalline micro/nanostructures,including vapor phase growth methods and solution-processed methods,and summarizes a few methods employed in the fabrication of field-effect transistors along with dozens of examples concerning both small molecules and polymers with high field-effect performance.

关键词： organic single crystal physical vapor transport (PVT) solution-processed technique field-effect transistors (FETs) micro/nanostructures

DNA barcoding:species delimitation in tree peonies

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Science china(Life sciences) 2009年第6期52卷 568-578页

作者： ZHANG JinMei1,2.wang JianXiu1,2.XIA Tao1,2.& ZHOU ShiLiang1 1State key {2. of Systematic and Evolutionary Botany,institute of Botany,the chinese academy of sciences,Beijing 100093,china 2.raduate School of the chinese academy of sciences,Beijing 100039,china 1. State key laboratory of Systematic and Evolutionary Botany Institute of Botany the Chinese Academy of Sciences Beijing 100093 China 2. Graduate School of the chinese academy of {2. Beijing 100039 China

Delimitations of species are crucial for correct and precise identification of *** "spe-cies" is more a subjective than an objective concept in taxonomic practice due to difficulties in revealing patterns of infra-or inter-specific *** phylogenetic studies at the population level solve this problem and lay a sound foundation for DNA *** this paper we exemplify the necessity of adopting a phylogenetic concept of species in DNA barcoding for tree peonies(Paeonia ***).We used 40 samples representing all known populations of rare and endangered species and several populations of widely distributed tree *** currently recognized species and major variants have been included in this *** chloroplast gene fragments,***,rps16-trnQ,trnL-F and trnS-G(a total of 5040 characters,96 variable and 69 parsimony-informative characters) and one variable and single-copy nuclear GPAT gene fragment(2.93?2.97 bp,2.9 variable and 148 parsi-mony-informative characters) were used to construct phylogenetic relationships among the *** evolutionary lineages revealed by the nuclear gene and the chloroplast genes are inconsistent with the current circumscriptions of ***,***,***,and *** based on *** inconsistencies come from(1) significant chloroplast gene divergence but little nuclear GPAT gene divergence among population systems of *** + ***,and(2. well-diverged nuclear GPAT gene but little chloroplast gene divergence between *** and *** incongruence of the phylogenies based on the chloroplast genes and the nuclear GPAT gene is probably due to the chloro-plast capture event in evolutionary history,as no reproductive barriers exist to prevent inter-specific *** also evaluated the suitability of these genes for use as DNA barcodes for tree *** variability of chloroplast genes among well-defined species or population systems of a specie

关键词： DNA barcoding evolution Paeonia phylogeny species concept

Validation of three infiltration models on purple soil under simulated rainfall

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Progress in Natural Science:Materials International 2007年第9期17卷 1059-1066页

作者： wang Yukuan1,2.Fu Bin1,3,Xu Pei1,2.wang Daojie1,2.wang Xiantuo1,3 and wang Yongqiang1,3(1.key laboratory of Mountain Surface Process and Hazards,chinese academy of Seiences,Chengdu 610041,china 2.institute of Mountain Hazards and Environment,chinese academy of {12.,Chengdu 610041,china 3.Graduate University of the chinese academy of {12.,Beijing 100049,china) key laboratory of Mountain Surface Process and Hazards Chinese Academy of Seiences Chengdu 610041 China institute of Mountain Hazards and Environment， chinese {2. of sciences， Chengdu 610041 China Graduate University of the chinese academy of {2. Beijing 100049 China

So as to find models suitable for the prediction of water infiltration in purple soil,infiltration rates simulated by three popular empirical infiltration models,Horton model,Kostiakov model,and the modified Kostiakov model,were compared by using those observed results on slope in purple soil under rainfall simulation.2. sets of infiltration data were divided into two parts for parameter estimation and validation *** performance of the three infiltration models was evaluated with the Nash and Sutcliffe efficiency *** results show that the percent for Nash and Sutcliffe efficiency greater than 0.7 is about 69.7% for the Horton model,and 48.48%,and 54.55% for the Kostiakov model and the modified Kostiakov model,*** model is better than Kostiakov model and the modified Kostiakov model in most rain events in the ***,Kostiakov model is still suitable for reasonable prediction of the infiltration in purple soil sloping farmland because fewer parameters are ***,rainfall intensity has significant effects on the parameter values used in the simulation *** simulation results can be improved by choosing suitable parameters according to the rainfall intensity.

关键词： infiltration model sloping farmland purple soil rainfall simulation

The seasonal and daily CO_2.concentration variance in karst meadow soil profile with depth in Central Guizhou, china

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chinese Science Bulletin 1999年第S2期44卷 93-94页

作者： ZHENG Leping~(1,2., LI Tingyu~2. WAN Guojiang~2. wang Shijie~2.and OUYANG Ziyuan~2.1. Department of Environmental Science and Engineering, Shanghai University, Shanghai 2.0072. china 2. State {2. laboratory of Environmental geochemistry, institute of geochemistry, chinese academy of sciences, Guiyang 550002. china Department of Environmental Science and Engineering Shanghai University Shanghai 200072 China State key laboratory of Environmental {2. Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

THE seasonal variance of soil CO2.concentration with depth in soil profile was widely studied. Few similarresearches on this topic have been done in karst area which comprises 15% global terrestrial area. In thisnote,... 详细信息

THE seasonal variance of soil CO2./sub> concentration with depth in soil profile was widely studied. Few similarresearches on this topic have been done in karst area which comprises 15% global terrestrial area. In thisnote, the research results about the seasonal and daily soil CO2./sub> concentration variance in karst area arereported. The soil gases were collected respectively by the sampling device at 2.0, 5,0, -5, -10,-15, -2., -35 and -45 cm from the land surface in meadow soil profile described by Zheng andlocated in the Hongfeng lake area in the central Guizhou Plateau which lies in the central East-Asia karstarea. Sampling time is in the morning, midday and at night in April, August and November, 1998 aswell as in January, 1999, respectively. Concentrations （volume percent） of CO2./sub> in soil gas samples

关键词： soil CO2 concentration karst area Guizhou Province.

Mineralization episode of porphyry copper deposits in the Jinshajiang-Red River mineralization belt: Re-Os dating

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Science china Earth sciences 2005年第2期48卷 192-198页

作者： wang Denghong, QU Wenjun, LI Zhiwei, YIN Hanlong4 & CHEN Yuchuan institute of Mineral Resources, {2. academy of Geological sciences, Beijing 100037, china National Center of Rock and Mineral Analysis, {2. academy of Geological sciences, Beijing 100037, china Resource Assessment Center of Yunnan, Kunming 650011, china institute of {12. and Geophysics, {2. academy of sciences, Beijing 100101, china {2. academy of Geological sciences, Beijing 100037, china 1. institute of Mineral Resources Chinese Academy of Geological Sciences 100037 Beijing China 2. National Center of Rock and Mineral Analysis Chinese Academy of Geological Sciences 100037 Beijing China 3. Resource Assessment Center of Yunnan 650011 Kunming China 4. institute of geology and Geophysics Chinese Academy of Sciences 100101 Beijing China 5. chinese academy of Geological {2. 100037 Beijing China

Re-Os isotopic dating for the molybdenites from the porphyry copper deposits of the Jinshajiang-Red River mineralization belt in Yunnan Province yields isochron ages of 33.9±1.1 Ma for the Machangqing deposit and 34.4±0.5 Ma for the Tongchang deposit. This result shows that both the Machangqing and the Tongchang porphyry Cu-Mo deposits from two different ore-fields formed simultaneously. This new data and the published Re-Os model ages of molybdenite (35.4 Ma, 35.9 Ma, 36.2.Ma) of the Yulong porphyry copper deposit in Tibet, which is located in the same Jinshajiang-Red River mineralization belt as the Machangqing deposit and the Tongchang deposit, suggest that these three Cenozoic porphyry copper deposits in the Jinshajiang-Red River mineralization belt were contemporary for their mineralization episode. That is to say, even their present locality is far away and nearly iso-distantly distributed, these three porphyry Cu(Mo) deposits belong to the same mineralization episode at the end of Eocene.

关键词： Re-Os isotopic dating, porphyry Cu deposits, Cenozoic, mineralization episode.

Zircon LA-ICPMS study and petrogenesis simulation of Dahuabei pluton in the Wulashan area,Inner Mongolia

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Progress in Natural Science:Materials International 2009年第12期19卷 1727-1737页

作者： Dapeng Li~(a,b),Yuelong Chen~(a,*),Liemeng Chen~c,Zhong wang~d,Jinbao Liu~d a School of Earth sciences and Resources,{2. University of Geosciences(Beijing),Beijing 100083,{2. b State key laboratory of Geological Process and Mineral Resources,{2. University of Geosciences,Wuhan 430074,{2. c State key laboratory of Ore Deposit {12.,institute of {12.,chinese academy of sciences,Guiyang 550002.{2. d Geological Survey institute of Inner Mongolia,Hohhot 010010,{2. [a]School of Earth sciences and Resources China University of Geosciences (Beijing) Beijing 100083 China [b]State key laboratory of Geological Process and Mineral Resources China University of Geosciences Wuhan 430074 China [c]State key laboratory of Ore Deposit {2. Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China [d]Geological Survey institute of Inner Mongolia Hohhot 010010 China

Dahuabei pluton in the Wulashan area,Inner Mongolia,is an alkaline and peraluminous granitic ***-ICPMS U-Pb dating of zircons indicates that this pluton crystallized at 330±10 *** pluton did not experience apparent zircon *** consistent temperatures between Zr saturation(765℃) and the average zircon-rutile Ti equilibrium(780℃),together with zircon ages and their CL images,indicated that there were no inherited zircons in this *** the simulation of the dry-system crystallization process of magma cooling at 2.0 MPa and 1100-709℃,the phase diagram and composition evolution tendency of different phases were *** magma reached its liquidus at 1069℃.Sanidine was the first crystallized phase;at 709℃the residual magma was less than 4%,and the range of 1069-719℃should be the most suitable approach to the real *** is shown that at least some part of the pluton underwent such isobaric equilibrium crystallization processes during its crystallization.

关键词： Dahuabei pluton Petrogenesis simulation geochemistry Zircon LA-ICPMS