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J. Cent. South Univ. Technol. (2009) 16: 0513-0519 DOI: 10.1007/s11771-009-0085-4 Selective catalytic reduction of NO with NH3 over sol-gel-derived CuO-CeO2-MnOx/γ-Al2O3 catalysts ZHAO Qing-sen... CuO-CeO2-MnOx/γ-Al2O3 catalysts were synthesized by the sol-gel method. The performance of the CuO-CeO2-MnOx/γ-Al2O3 catalysts for the selective catalytic reduction (SCR) was studied in a fixed bed......
DOI: 10.11817/j.issn.1672-7207.2020.10.010 (1) 2.3 不同初始板形铝箔卷取过程横向屈曲分析 2.3.1 无浪形缺陷铝箔卷取过程横向屈曲研究 为分析无浪形缺陷铝箔在卷取过程中的横向屈曲情况,仿真研究了铝卷凸度为2.5 mm,不同卷取张力时无浪形铝箔的横向屈曲情况.铝箔波浪度与卷取张力关系曲线如图6(a)所示,可见波浪度随卷取张力增大而增大,但其绝对值很小;波浪度最大时铝箔横向屈曲情况如图6(b)所示,此时铝箔并未产生屈曲.由此可知,无浪形铝箔卷取时仅发生横向起皱,不产生横向屈曲缺陷.值得注意的是,图6(b)中有限元模型仿真的起皱条纹与图1(b)中......
Cleaning IF molten steel with dispersed in-situ heterophases induced by the composite sphere explosive reaction in RH ladlesFu-ping Tang, Zhen Li, Xiao-feng Wang, Ben-wen Chen, and Peng Fei Anshan Iron & steel Group Company, Anshan 114014, China摘 要:A novel fine inclusion removal technology was put forward with dispersed in-situ heterophases induced......
; 文献标识码:A Dissimilatory reduction process of vanadium(V) in metallurgical wastewater by Rhodoferax ferrireducens LI Hao-ran1, FENG Ya-li2, ZOU Xiao-yan2, LUO Xiao-bing2 (1. State Key... and Technology Beijing, Beijing 100083, China) Abstract: The process of Rhodoferax ferrireducens (R.f ) dissimilatory reduction of V5+ in waste water was studied by the means of microbial fuel cell......
the saponification value of the additive is, the faster speed the absorption saturation achieves. The effect of the large saponification value of additives on the aluminum annealing cleaning after rolling is small. Key words: aluminum alloy oils; additive; saponification value; tribological properties; anneal cleaning 采用工艺润滑可以有效地降低铝板材轧制过程中的轧制压力,减小摩擦因数,改善轧件的表面质量[1-2].轧制油通常由基础油和添加剂组成[3],其中基础油为主要组成部分.添加剂一般为受热挥......
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Gas-solid reduction kinetic model of MgO-fluxed pelletsQiang-jian Gao,Feng-man Shen,Xin Jiang,Guo Wei,Hai-yan ZhengSchool of Materials and Metallurgy,Northeastern University摘 要:The reduction process of MgO-fluxed pellets was investigated and compared with traditional acidic pellets in this paper.Based on the piston flow concept and experimental data......
Reduction of SO_2 to elemental sulfur over rare earth-iron catalysts DENG Gengfeng1,LIAO Chunfa1,JIANG Kun1,CAO Xia2 (1.School of Materials and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China;2.Nanchang Engineering and Research Institute of Nonferrous Metals, Nanchang 330000, China) Abstract:With coal gas as a reducing agent, the catalytic reduction......
XFAST方法的自适应捕获方法,结合非相关累加的性质进行自适应组合,对P码信号进行直接捕获.研究结果表明:此自适应捕获方法仍然可以保留XFAST计算量较小的优点,同时可以克服XFAST无法捕获到较弱信号的不足,对实际GPS P码直接捕获接收机的设计以及我国自主北斗长码直接捕获接收机的发展均具有一定的参考价值.关键词:P码;直接捕获;XFASTAdaptive direct acquisition... 411201, China; 2. School of Information Engineering, Chang’an University, Xi’an 710064, China)Abstract:Based on the fact that XFAST method causes additional SNR loss, an adaptive direct acquisition......
Article ID: 1003-6326(2005)02-0395-05 Noise reduction of punch press mechanical clutch engagement CHEN Wei(陈 威)1, 2, 3, SUN Chang-qing(孙长青)1, LI Yun-liang(李运良)1 (1. Department... added to the spline bush keyways and the clutch running noise reduction has reached 10.7dB(A). Considering such factors as the running characteristics of the punch press clutch, the demand......