共搜索到22058条信息,每页显示10条信息,共2206页。用时:0小时0分0秒316毫秒
Geochemical Characteristics of Rare Earth Elements in Sewage Discharge Channels of Tianjin 王秀丽1,李国胜2,丁力强3,王立军2,梁涛2,张朝生4,闫欣1 (1.Institute of Geology, CAS, Beijing 100029, China;2.Institute... Institute, National University of Ireland, Galway, Ireland) Abstract:The geochemical features of rare earth elements (REEs) in the North and South sewage discharge channels of Tianjin were studied......
Rare earth elements in tropical surface water, soil and sediments of the Terengganu River Basin, Malaysia Noor Azhar Shazili1,Khawar Sultan1 (1.Institute of Oceanography,University Malaysia... (Eu-Gd-Tb). The dissolved ∑REE concentrations increased systematically in surface waters with distance from the upstream ( Key words:rare earth elements; fiver/lake water; soil; sediment; Malaysia......
Geochemical Implication of Rare Earth Elements in Process of Soil Development 龚子同1,黄成敏2 (1.Institute of Soil Science, Chinese Academy of Sciences,;2.College of Environmental Science and Engineering, Sichuan University,) Abstract:The geochemical characteristics and behavior of rare earth elements (REE) in soils developed on the basalts in the northern part of Hainan Island erupted in different......
Effect of Rare Earth Elements on Quenching Crack Resistance of Steel 9Cr2Mo 张兰萍1,杨庆祥2,郭铁波3,李慧2 (1.Development of Machinery and Electron, Jixi University,;2.College of Materials Science Engineering, Yanshan University,;3.College of Industry Technology, Harbin Science and Technology University,) Abstract:The effect of rare earth elements on quenching crack resistance of steel 9Cr2Mo......
Modification Mechanism of Rare Earth Elements in ZA27 Casting Alloys 李荣德1,刘贵立1 (1.College of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110023, China) Abstract... by computer programming. Electronic structures of phase with rare earth elements dissolved and of phase-liquid interfaces with rare earth elements enrichment in ZA27 casting alloys were investigated by using......
; impregnated resin; heavy rare earth elements; adsorption-extraction mechanism  ..., YANG Shao-hua, WANG Chun-xiao. The separation technology of the rare earth elements [J]. Hebei Chemical Engineering and Industry, 2003(4): 13-15. (in Chinese) [3] LI Hong-gui. Hydrometallurgy [M......
Effect of Rare Earth Elements on Quantity Growth of Crops 汪成胜1,李瑞1,常江1,韩修明1,柴绍明1,张自立1 (1.Department of Soil & Agrichemistry, Anhui Agricultural Univers oty, Hefei 230036,China) Abstract:The effects of rare earth on the growth of rice, rape and soybean in three kinds of soils were studied with the method supposed by Economic Co-operation and De velopment organization (OECD), and the EC50(median......
......
Accumulation and Fractionation of Rare Earth Elements in Soil-Rice Systems Liang Tao1,Yan Xin2,Zhang Chaosheng3,Wang Lijun1,Hu Aitang4,Ding Shiming1 (1.Institute of Geographical Sciences... of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China) Abstract:Accumulation and fractionation of rare earth elements (REEs) were studied through applications......
Fluoride solid electrolytes containing rare earth elementsViera Trnovcová,Pavel P. Fedorov,Ivan Furár1摘 要:Relations between the structure, ionic conductivity and dielectric properties of fluoride systems of different structures containing rare earth elements were presented. Superionic conductivities, by fluoride ions, of fluorite-structured (MF2-REF3, M......