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Effect of Zn doping on the hydrogenolysis of glycerol over ZnNiAl catalyst 期刊论文  OAI收割
journal of molecular catalysis a-chemical, 2014, 卷号: 395, 页码: 1-6
Li, Xiaoru; Zhang, Chao; Cheng, Haiyang; He,Limin; Lin,Weiwei; Yu,Yancun; Zhao,Fengyu
收藏  |  浏览/下载:90/0  |  提交时间:2015/10/20
Nickel based catalyst is of interest in the industrial catalytic processes  and it is always modified by doping a second element to improve its catalytic properties. Understanding the role of dopant is extremely helpful in tailoring the active centers. In this work  Zn could induce a significant improvement of the catalytic performance of NiAl for the hydrogenolysis of glycerol. The Zn doped ZnNiAl catalysts exhibited high activity and the improved selectivity to 1  2-propanediol  it was about 2 times higher than the original ones. The ZnNi alloy formed in ZnNiAl was responsible for the noticeable catalytic performance. They preferred to coordinate with the end hydroxyl group of glycerol  promoted the cleavage of C-O bond in glycerol  and resulted in the dominant formation of 1  2-propanediol. The findings described here will provide a useful knowledge for rational design of nickel-based catalysts  as well as reveal a new reaction model for the hydrogenolysis of glycerol. (C) 2014 Elsevier B.V. All rights reserved.  
Grayscale control algorithm based on optokinetic nystagmus (EI CONFERENCE) 会议论文  OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
Chen Y.-S.; Gao H.-B.; Su W.-X.; Wang M.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
In order to reduce trailing phenomenon for moving image in FPD (Flat Panel Display)  Then  Finally  grayscale control algorithm is proposed that simulates CRT (Cathode Ray Tube) grayscale rendition process. First  based on algorithm derivation  implemented main program with VHDL (Very-High-Speed Integrated Circuit Hardware Description Language) is presented and specific rendition process is described. Experimental results indicate image quality is evidently improved and proposed algorithm reduces trailing phenomenon nearly 90%  after the reason of trailing phenomenon for moving image is introduced  algorithm realization steps and compared experiment results of traditional and proposed FPD grayscale control algorithm are discussed  when FPD displays moving image  work processes of human eyes are illuminated and grayscale rendition of a pixel is obtained  according with eyes reflection mechanism and programs can correctly implement on circuit board. 2010 IEEE.  when seeing moving image on CRT and FPD  
电子束蒸发镀膜速率控制 期刊论文  OAI收割
中国激光, 2008, 卷号: 35, 期号: 10, 页码: 1591, 1594
王善成; 方明; 易葵; 邵淑英; 范正修
收藏  |  浏览/下载:1022/208  |  提交时间:2009/09/22