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| 1 | The high-resolution climate recorded in the δ^(18)O of Porites lutea from the Nansha Islands of China显示文摘A Porites lutea core from Yongshu Reef of Nansha Islands covering 50 years growth history was ana-ly/ed for oxygen isotopic composition with monthly and seasonally resolution. The calibration of the δ18O with the instrumental temperature indicated that the coral δ18O is a good indicator for sea surface temperature (SST) and air temperature (t). It can be used to reconstruct the SST and air temperature of the Yongshu Reef sea area. In addition, the coral δ18O provides signatures for the intensity of the East Asia monsoon and it is a record for the activities of El Nino events. With the calibrated SST and air temperature formulas, the most recent fifty years SST and air temperature were reconstructed based on the coral δ18O, thus back up the understanding of the climate of Nansha Islands to 1950. far beyond the limit of the instrumental recording since September 1988. It was found that, in general, increasing 1℃ air temperature results in 0.24‰decrease in skeletal δ18O. | YU Kefu, CHEN Tegu, HUANG Dingcheng, ZHAO Huanting, ZHONG Jinliang & LIU Dongsheng (LIU Tungsheng)South China Sea Institute of Oceanoiogy, Chinese Academy of Sciences. Guangzhou 510301, China:Geology and Geophysics Institute. Chinese Academy of Sciences, Beijing 100029, China | 2001 | Chinese Science Bulletin2001，46，24： | 10 |
| 2 | Research progress of desert science in China显示文摘Research of desert science in China began in the 1930s, when Chen Zongqi et al. first made apreliminary investigation in several deserts. Shortly after the founding of the People’s Republic ofChina a few studies were carried out to meet the demand for the establishment of windbreak andsandbreak forests, for example, the studies of moving sand dunes in Yulin. Jingbian and Dingbianregions of Shaanxi Province. However, the comprehensive study of desert science in China | XIA Xuncheng & FAN ShengyueXinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China Cold and Arid Region Environment and Engineering Research Institute. Chinese Academy of Sciences, Lanzhou 730000. China | 2000 | Chinese Science Bulletin2000，45，24： | 6 |
| 3 | AN EXTERNAL STANDARD METHOD OF QUANTITATIVE PHASE ANALYSIS OF THE SAMPLE CONTAINING AN AMORPHOUS PHASE BY X—RAY DIFFRACTION显示文摘A new method of the quantitative phase analysis of sample containing an amorphous phase or a standardless phase br X-ray diffration is proposed in the paper.The addtion of a reference phase or some analvtical phase to the analvzed sample is not required in this method and the experimintal results are satis factory.. | CHU Gang, SUI QinFushun Petroleum Institute. Fushun. China | 1994 | Acta Metallurgica Sinica(English Letters)1994，7，3： | 5 |
| 4 | CONSTRUCTION OF A GENOMIC DNA LIBRARY WITH ATA VECTOR AND ITS APPLICATION IN CLONING OF THE PHYTOENE SYNTHASE GENE FROM THE CYANOBACTERIUM SPIRULINA PLATENSIS M-135显示文摘An efficient and simple method for constructing a genomic DNA library using a TAcloning vector is presented. It is based on the sonicative cleavage of genomic DNA and modification offragment ends with Taq DNA polymerase, followed by ligation using a TA vector. This method was ap-plied for cloning of the phytoene synthase gene crtB from Spirulina platensis. This method is useful whengenomic DNA cannot be efficiently digested with restriction enzymes, a problem often encountered duringthe construction of a genomic DNA library of cyanobacteria. | Yoshikazu Kawata Shin-ichi Yano Hiroyuki Kojima(Osaka Mational Research Institute. Agency of Industrial Science and Technology, Ikeda, Osaka 563, Japan) | 1998 | Chinese Journal of Oceanology and Limnology1998，16，S1： | 5 |
| 5 | Synthesis and Crystal Structure of Bis(S-methyl-β-N- (4-dimethylaminophenyl)methlenedithiocarbazate) Nickel (Ⅱ)显示文摘Reaction of nickel (Ⅱ) acetate with S-methyl-β-N-(4 dimethy-laminophenyl) methlenedithiocarbazate gave a mononuclear complex [Ni (C11H14N3S2)2]. Crystal of the title compound belongs to monoclinic systern,space group C2/cwith cell parameters a= 18. 785 (1), b= 17. 274 (1 ), c= 8. 344 (1 ) A, β= 108. 64(2)°, V= 2565(1 ) A3, Z=4, Mr= 563. 36, Dc= 1. 459 g/cm3; μ=10. 05 cm-1 andF(000) = 1176. The final refinement with 2179 observed reflections is converged withR= 0. 044 and R.= 0. 069. X-ray crystal structure analysis revealed that the coordina-tion geometry of Ni (Ⅱ) is a square-planar with two equivalent Ni -N and Ni - Sbonds. The Schiff-base ligand loses a proton from its tautomeric thiol form and is coor-dinated to the nickel atom via the mercapto sulphur and the β-nitiogen. | BIAN Zheng-Wei(Chemistry Department, Jiangsu Educational Institute. Nanjing, 210013)DUAN Chun-Ying THOMAS C. W. Mak(Coordination Chemistry Institute and State Key Laboratory ofCoordination Chemistry, Nanjing University, Nanjing 210093) | 1997 | Chinese Journal of Structural Chemistry1997，16，4： | 2 |
| 6 | 黄、东海鳀鱼及其他经济鱼类资源声学评估的调查研究——“北斗”号1984年11月至1989年1月调查研究报告 第一章 基本情况显示文摘 | FISHERIES INVESTIGATIONS BY R/V “BEI DOU”Edited by Zhu De-Shah and Svein A.IversenYellow Sea rishcrics Research Institute. QingdaoInstitute r f Marine Research Bergen | 1990 | 海洋水产研究1990，，11： | 1 |
| 7 | In Situ Acquisition of Equivalent Circuit Parameters of Crystal Resonance during Copper Deposition and Dissolution in Acidic Solution by Electrochemical Quartz Crystal Impedance System显示文摘Thequartzcrystalimpedancetechniqueisapowerfulmethodtocharacterizecrystalresonancesincemultipleinformationaboutcrystalresonanceincludingtheresonantfrequencyandchangesinsomephysicaland/orchemicalpropertiesofthetestsystemcanFigure1.Equivalentelectricalc... | Qing Ji XIE Xiao Lian SUN Xiao Lan GU Hong Wei LIU You Yu ZHANG Shou Zhuo YAO(Chemical Research Institute. Hunan Normal University,Changsha 410081)(Chemistry Department,Hunan Normal University, Changsha 410081) | 1999 | Chinese Chemical Letters1999，10，1： | 1 |
| 8 | A method for improving the performance of MVDR beamforming显示文摘Minimum Variance Distortionless signal Response (MVDR) beamforming can be used as a wavenumber spectrum (bearing) estimation, whose precision or resolution is deter mined primarily by signal-to-noise ratio. This paper presents a method for improving MVDR beamforming bearing resolution by using an enhancement factor in its weight vector design for emulating a high signal-to-noise ratio condition which is known to be a principal factor in res olution improvement. This method can providc improved rcsolution not at the expense of sig nal-to noise plus interference ratio gain. Some of computer simulation results are also given. | ZHU Shimeng SONG Mingkai and GONG Xianyi (Hangzhou Applied Acoustics Research Institute. Hangzhou 311400) | 1995 | Chinese Journal of Acoustics1995，14，1： | 1 |
| 9 | Studies on thermal stabilities of coordination compounds by gas chromatography——ⅩⅧ. Activation and hydrogenation of coordinated CN~-显示文摘 | NIU Jun-Ning XIN Xin-Quan DAI An-Bang (A. P. Tai) Coordination Chemistry Institute. Nanjing University Nanjing | 1986 | Acta Chimica Sinica(English Edition)1986，，04： | 1 |
| 10 | 黄、东海鳀鱼及其他经济鱼类资源声学评估的调查研究——“北斗”号1984年11月至1989年1月调查研究报告 第一章 基本情况显示文摘 | FISHERIES INVESTIGATIONS BY R/V “BEI DOU”Edited by Zhu De-Shah and Svein A.IversenYellow Sea rishcrics Research Institute. QingdaoInstitute r f Marine Research Bergen | 1990 | 海洋水产研究1990，，11： | 1 |
| 11 | THE SYNTHESIS AND CRYSTAL STRUCTURE OF B-(32) MODEL COMPOUND: 1-C_4H_9Co(salen)(Py)显示文摘The title complex i-C4H9Co(salen)(Py) (Py=pyridine. salen=dianion of disalicylideneethylenediamine) has been first synthesized. Its crystal structure has been determined by X-ray diffraction method. The crystsis are monoclinic with space group P21/ C. The unit cell parametes are presented. The structure has been refined to a final R of 0.038. | Hui Lan CHEN~* De Yan HAN Qing Yuan WU Wen Xia TANG Department of Chemistry and Coordination Chemistry Institute. Nanjing University. Nanjing 210008 Yao YANG Hua Qin WANG Centre of Material Analysis. Nanjing University, Nanjing 210008 | 1992 | Chinese Chemical Letters1992，3，7： | 0 |
| 12 | Europe's 'Division' and Its Implications显示文摘Just as France and Germany took an increasingly divergent stand with the United States over the Iraq issue, on January 3rd, 2003, eight countries including Britain, Italy, Spain, Portugal, Denmark, Poland, Czech Republic and Hungary made a joint statement in the British Times, appealing to Europe to act in concert with U. S. over the issue of using force against Iraq. This statement had it that it | Sun Keqin Shen Bilian~* Sun Keqin is an Associate Professor and Deputy Director at Division for European Studies in CICIR and Shen Bilian is an Assistant Professor at the Division for North and Latin American Studies in the same institute. | 2003 | Contemporary International Relations2003，13，4： | 0 |
| 13 | A Novel Example of Hetero Diels-Alder Reaction显示文摘2,3,3a,4,5,9b-hexahydro-8(N-methylsulfamylmethyl)-4-phenylfuro[3,2-c]quinoline was obtained when the alkylation of compound 1 was carried out with THF as solvent. The structure of the product was detendned and the mechanism of the reaction was studied and proved by the idritation reaction. | Yan ZHANG Yun Zhen JIANG Xiao Tian LIANG (Institute. of Chemistry, The Chinese Academy of Sciences, Beijing 100080)(Institute. of Materia Medica, Peking Union Medical College,The Chinese Academy of Medical Sciences, Beijing 100050) | 1998 | Chinese Chemical Letters1998，9，8： | 0 |
| 14 | PRODUCTION OF THE PLATINUM ELECTRODE OF TANTALUM CLAD SILVER显示文摘This paper summarizes the production of the platinum electrode of tantalum clad silver. Ta(Ag). It clarifies the determination of the design parameters for the composite electrode, the technological process, the tensile test of the composite Ta(Ag) wire, the spotwelding of the electrode seal. the examination for leakage of the electrode. the prcess for winding the platinum foil and spotwelding, and the process parameter for obtaining high-quality electrodes during the production of 1,000 and more electrodes. The electrode produced satisfied the needs of the engineering design. It was demonstrated that the electrode had a long life-span and property stability, and fulfilled the norms for saving electricity and increasing production. | Zhuang, Xianglin Yu, Wenchuang Zhen, Tianma Liang, Hanzhong Jing, Qiusheng Yu, Qiuyun Shanghai Nonferrous Metals Research Institute. Shanghai 201600, China | 1993 | 中国有色金属学会会刊:英文版1993，3，1： | 0 |
| 15 | VAPORIZATION HEAT AT NORMAL BOILING POINT AND MOLECULAR TOPOLOGY FOR PARAFFINS显示文摘VAPORIZATION HEAT AT NORMAL BOILING POINT AND MOLECULAR TOPOLOGY FOR PARAFFINSVAPORIZATIONHEATATNORMALBOILINGPOINTANDMOLECULA... | Deng Gao JIANG Cai Rong ZHOU Fu An WANG (Department of Chemical Engineering, Zhengzhou, Institute. of Technology, Zhengzhou. 450002) | 1994 | Chinese Chemical Letters1994，5，6： | 0 |
| 16 | Energy Storage Capacity of Reservoirs is an Important Parameter for Hydropower Planning显示文摘The article presents that in the hydropower planning, the regulation capacity of reservoirs should be measured by their energy storage capacity. By calculating the energy storage capacity of the large reservoirs in China and abroad, it shows that the energy storage capacity of the Longyangxia Reser-voir on the upper Yellow River is one of the largest. Enormous benefit can be obtained through compensation regulation of the cascade hydropower projects on the upper Yellow River and the nearby interbasin hydropower projects by the aid of the energy storage capacity of the Longyangxia Reservoir. | Lu Qinkan , Wan Jingwen and Xiang Shiwu Consultant, Information Research Institute of Electric Power, MEP, Beijing, China.Senior Engineer, Northwest China Hydropower Investigation & Design Institute. Xi’an, China. | 1996 | Electricity1996，，2： | 0 |
| 17 | Elevated temperature strain softening characteristics of 12Cr1MoV steel friction welding pipe joints显示文摘Elevatedtemperaturestrainsofteningcharacteristicsof12Cr1MoVsteelfrictionweldingpipejointsYANGDexin;ZHAOXiujuan;LIUZhiquan;CHE... | YANG Dexin ZHAO Xiujuan LIU Zhiquan CHEN Chunhuan and LUO Yu (Welding Department of Dalian Railway Institute. Dalian. 116028.) | 1996 | China Welding1996，5，1： | 0 |
| 18 | A Study on Adsorption of Electrogenerated Cystine Precipitate onto An Electrode using Electrochemical Quartz Crystal Impedance System显示文摘An electrochemical quartz crystal impedance system has been applied to monitorgeneration of precipitate and adsorption of the precipitate onto An electrode during electrochmicaloxidation and Fe(CN)6,3-/Fe(CN),6 4- electrochemical catalytic oxidation of L-cysteine in phosphateaqueous buffer (pH 7.4). Significant decreases in the resonant frequency and increases in themotional resistance and the static capacitance were found during the precipitate adsorption, and thefrequency shift found in solution was ca. 2 times that in air. Similar responses of quartz crystalimpedance and a white precipitate were obtained during redox titration of L-cysteine solutionusing K3Fe(CN)6 solution. FT-IR analysis indicated that the white precipitate is cystine. Theelectrode collection efficiency of the electrogenerated cystine was estimated. | You Yu ZHANG Qing Ji XIE Yang Hui GUO Xiang Jun WANG Shou Zhuo YAO(Chemical Research Institute. Hunan Normal University, Changsha 410081) | 1999 | Chinese Chemical Letters1999，10，12： | 0 |
| 19 | Studies on the properties of flow-induced oscillation and sound radiation in streamlined protuberant special cavities显示文摘In this paper, it is studicd the characteristics of flow-induced oscillation and sound radiation of streamlined protuberant special cavities. From which three important conclusions are drawn. The first, in water and in casc of low Mach number, there exist two oscillating modes in the cavity: natural oscillation and hydrodynamic oscillation of the cavity. The second, the cquation between Strouhal number and Mach number of hydrodynamic oscillation is put forward.The third, in water and in case of low Mach number, the equation of the incre ment of general sound level of flow-induced oscillation in direct proportion to square of flow rate is given. | WANG Yusheng and LIU Zhenjiang (Harbin Shipbuiling Engineering Institute. Harbin 150001 ) | 1994 | Chinese Journal of Acoustics1994，13，3： | 0 |
| 20 | A study on wheeze models显示文摘In this paper, the finite differenee schemes for the linear and nonlinear models of wheezes are given. The waveform of wheczes is analysed. It is shown that the numerical results of the lincar model of wheezes and Grotberg’s theorehcal results coincide well. The numerical results of the nonlincar model of wheczes are in qualita tive agreement with our expcrimental observations. It is suggested that the nonlinear elastance coefficient (β) causes damping, and is closely related to the flow limitation and the airway collapse. Wheezes result from the interachon between the fluid forces and the wall forces and the airway wall flutter is a forced-vibration, rather than a self vibration. | XU Jingping CHEN Qimin MIN Yijian ZANG Xiaofei and LU Bainian (Applied Acoustits Institute. Shaanxi Normal University. Xi’ an 710062) | 1994 | Chinese Journal of Acoustics1994，13，3： | 0 |
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