共搜索到22024条信息,每页显示10条信息,共2203页。用时:0小时0分0秒408毫秒
用VB实现托利多电子秤与计算机的串口通讯谢勤,舒绪琪,陈军摘 要:介绍了在磅房秤重系统中采用VB编制程序成功实现8142系列电子秤与计算机之间的数据通讯.关键词:VB编制程序;8142电子秤;计算机;数据通讯;......
, University of Windsor, Windsor, Ont., Canada N9B 3P4) Abstract: Maximum solid solubility (Cmax) of different transition metals in metal solvent can be described by a semi-empirical equation using function...], there is a relation between the Cmax of transition metals dissolved in a given solvent metal and the function Zf. lnCmax=Zf(1) and the function Zf is defined as Zf=a0+a1(ΔX)2+a2δ2+a3n2/3(2) where ΔX=X0-X......
dried at 353 K was a zirconyl carbonate compound.When the precursor was calcined at 673 K for 150min,highly crystallization ZrO2 with tetragonal structure (space group P42/nmc (137)) was obtained with a crystallite size of 24 nm.However,when the precursor was calcined at 1023 K for 150min,highly crystallization ZrO2 with monoclinic structure (space group P21/c (14)) was obtained with a crystallite......
from 5.41 g/cm3 to 5.24 g/cm3. With this base, the influence of varistor capacitance and high voltage gradient were scrutinized and it led an improved transition speed of the varistor assembly from non-conduction to conduction mode during intruding nanosecond transients. Key words: capacitance; metal oxide varistor; nanosecond transient; rare earth oxide; transition delay; ytterbium oxide Cite......
, Changsha 410083, China; 2. Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China) Abstract: The physicochemical characteristics of manganese residue from two ore one-step process were analyzed. The thermal phase transition behavior was detected by using TG-DTA and XRD. And manganese leaching toxicity was determined. The results show......
琼. 固态还原铁捕集法回收铂族金属二次资源[J]. 中国有色金属学报, 2014, 24(10): 2692-2697. DONG Hai-gang, ZHAO Jia-chun, CHEN Jia-lin, FAN Xing-xiang, FU Guang-qiang, YANG Hai-qiong. Recovery of platinum group metal secondary... the appropriate conditions by practical experimental verification. Key words: platinum group metal; copper trapping method; spent auto catalyst; recovery Foundation item: Project(51504106) supported......
......
behavior. It is suggested that solvents can be designed to preferentially extract one metal oxide with respect to another. The majority of the more ionic transition metal oxides were found to be soluble... methods include a metal ion-ligating functional group in structure of one of the ions named Task Specific ionic liquids, which plays dual roles of both hydrophobic solvents and extractants. VISSER et al......
Structural transition and magnetic properties of evaporated Fe/Gd multilayersYANG Peiyong, SONG Cheng, ZENG Fei, and PAN Feng Laboratory of Advanced Materials, Department of Materials Science... of 0.01-0.03 nm/s in an ultra-high-vacuum electron-gun evaporation system. The effects of the constituent metal layer thickness on the microstructures and magnetic properties of the films were investigated......
......