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outperforms the conventional pulsed D flip-flop by 17.2% in delay and 30.1% in power-delay-product (PDP) and the proposed pulsed JK flip-flop has low power and small PDP compared with pulsed D pulsed flip-flops, confirming that the proposed structure and design technique are simple and practical. Key words: flip-flop; pulse-triggered; transmission voltage-switch theory; low power 1 Introduction......
, medium temperature fatigue properties and low temperature cracking resisting properties of all bituminous binders in the linear viscoelasticity areas by temperature sweep tests and frequency sweep tests.... Generally, compared with the original bitumen, the TPS and SBS modified bituminous binders show higher complex modulus at the low angular frequency end and lower complex modulus at the high angular......
The experiment was performed from low to high sweep frequency at a constant strain of 7.5. It can be observed from Fig.3 that viscous modulus G″ exceeds elastic modulus G′ in the entire frequency.... The relationship between the complex viscosity and the constant frequency were determined. As the volume fraction increases, flow exponent N shows a rapid increase, and it increases dramatically when......
frequency-drift method for islanding detection with low harmonics distortion[J]. Transactions of China Electrotechnical Society, 2009, 24(4): 219-223. [16] IEEE Std 929-2000, IEEE Recommended practice...率偏移法 中图分类号:TM92 文献标志码:A 文章编号:1672-7207(2013)12-4887-07 Novel active frequency drifting islanding......
University of Shabestar, Shabestar, Iran Received 27 May 2017; accepted 28 September 2017 Abstract: The nonlinear properties and frequency characteristics of ZnO-polypyrrole composites were investigated at 200 Hz-5 MHz frequency interval with different zinc oxide contents. Samples were prepared using hot press method at 130 °C. Results show an optimum point for breakdown voltage at ZnO content of 70......
Optimization design of electromagnetism induction heating technical parameters in high frequency induction brazingHE PENG(何 鹏), FENG Ji-cai(冯吉才), LIU Hui-jie(刘会杰),HAN Jie-cai(韩杰才), LIU Le-chang(刘乐昌... frequency induction brazing; objective function; ‘T’ pipe joint......
Preparation of aluminide coatings at relatively low temperatures
ZHAN Zhao-lin(詹肇麟)1,2, HE Ye-dong(何业东)1, WANG De-ren(王德仁)1, GAO Wei(高 维)3
1. Beijing Key Laboratory for Corrosion, Erosion... with great energy and time savings.
Key words: low-temperature pack aluminizing; aluminide coating; ball impact; oxidation resistance
Separation efficiency of alumina particles in Al melt under high frequency magnetic field
GUO Qing-tao(郭庆涛)1, CAO Zhi-qiang(曹志强)2, ZHANG Zhong-tao(张忠涛)2,
LI Ting-ju(李廷举)2, JIN Jun-ze(金俊泽)2, HONG... frequency magnetic field; separation efficiency
......Separation efficiency of alumina particles in Al melt under high frequency magnetic field
来源： 《中国有色金属学报(英文版)2010年第1期》——郭庆涛 曹志强 张忠涛 李廷举 金俊泽 HONG Chun-pyo
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Hydration mechanism of low quality fly ash in cement-based materialsLIU Shu-hua(刘数华)1, 2, KONG Ya-ning(孔亚宁)1, WANG Lu(王露)1(1. State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University, Wuhan 430072, China;2. Department of Civil, Environmental and Geomatic Engineering,University College London, London, WC1E 6BT, UK)Abstract:The hydration mechanism of low quality......
