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The Syntheses,Characterization and Crystal Structure of Extraction Complexes of Rare Earths徐光宪,黄春辉摘 要:<正> The syntheses,characterization and crystal structure of rare earth coordination compounds of five typicalextraction systems commonly used in the separation technology were reported.They are:(1)carboxylic acidsystem,(2)organophosphorous acid......
ELECTRONIC STRUCTURE AND BOND CHARACTER OF COMPLEXES OF RARE EARTH CHLORIDES WITH CROWN ETHERS李振祥,周清廉,胡宁海,倪嘉缵,任镜清,黎乐民,赵井泉,徐光宪摘 要:<正> A series of lanthanide complexes LnCl3·L(Ln=La,Pr,Nd;L=15-C-5 or 18-C-6)have beensynthesized and their molecular configuration,electronic structure and bond character have been studied byXPS and quantum chemical......
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; synchronization and coordination 在工业生产现场,桥式起重机的运行环境较恶劣,工作任务较繁重,而各结构件的稳定性和可靠性较差.同时,桥式起重机跨度大,水平刚度低,安装精度也难以保证,且在作业过程中可能会遇到比较复杂的工况,为此,桥式起重机大车在行走时会产生不同程度的跑偏现象,导致作业效率低,严重时甚至发生安全事故[1-3].对桥式起重机大车进行纠偏控制,可改善其在运行时的平稳性和安全性,降低... coordination correction control system bridge crane 2.2 自适应控制器设计 利用神经网络模型来进行控制器设计,其原理框图如图3所示[16]. 图3 自适应PID控制原理框图 Fig. 3 Principle diagram of adaptive PID control 本系统利用1个三输入神经网络模型[17].该模......
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dimethylsulfoxides forming a distorted square antiprism coordination polyhedron,while the BPh-4 anion is charge-equilibrium ion. Key words:rare earths; neodymium; sulfoxide; crystal structure; tetraphenylboron...Synthesis and Crystal Structure of a Neodymium Ionic Associate [Nd(dmso)7Cl][Bph4]2 WANG Han-zhang1,ZHANG Dao2,GUO Song-shan1,YU Kai-bei3 (1.Department of Chemistry, Suzhou University, Suzhou......
Synthesis, Characterization and Crystal Structure of Quaternary Complex of Gadolinium (Ⅲ) 北川进1,朱龙观2,蔡国强2,王国平2,正冈重行1 (1.Department of Synthetic Chemistry and Biological Chemistry, Faculty... different from the U spectrum. The coordination number of Gd3+ is nine with a monocapped square antiprism geometry. And the stacking effect was observed in the complex. The crystal of the complex......
) and (LiF4) tetrahedra are basicalstructure units of glass network and the coordina-tion number of Li is 4. The coordination number ofP is 4. The glass random network structure model isgiven. The study...STUDY ON THE STRUCTURE OF IONIC CONDUCTOR FOR LiH-LiF-P2O5 GLASS SYSTEM崔万秋,徐庆,丁彦摘 要:<正> The system of LiH-LiF-P2O5 ionic conductorglass is prepared......
Thermochemical Study on Coordination Complex of Neodymium Trichloroacetic Acid with 8-Hydroxyquinoline 刘义1,李强国2,屈松生1 (1.College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072...; 8-hydroxyquinoline coordination complex; thermochemistry; [全文内容正在添加中] ......
The Study on 400 MPa Class Plain Carbon Structure Steel DU Lin-xiu1,WANG Guo-dong1,LI Wei-juan2,ZHANG Hong-mei2,LI Sheng-li2 (1.State Key Lab of Rolling and Automatic, Northeastern University, Shenyang 110006, P.R. China;2.Anshan science and technology university, Anshan 114044) 摘要:New generation of structure steel has been developed to meet the uninterruptedly increasing needs of the economic......