共搜索到16565条信息,每页显示10条信息,共1657页。用时:0小时0分0秒541毫秒
J. Cent. South Univ. Technol. (2011) 18: 1240-1247 DOI: 10.1007/s11771-011-0828-x Calculation of earth pressure based on disturbed state concept theory ZHU Jian-feng(朱剑锋)1, 2, XU Ri-qing(徐日庆)2... and different wall-movement modes are not taken into consideration. The disturbance of backfill is considered to be related to the wall movement under translation mode. On the basis of disturbed state concept......
New algorithm of mine slope reliability based on limiting state hyper-plane and its engineering applicationLIU Zhi-xiang(刘志祥), TANG Zhi-xiang(唐志祥), WANG Wei-hua(王卫华), SUN Jing-jing(孙晶晶), PENG Kang(彭... reliability based on limiting state hyper-plane is proposed. It is shown that by using this new reliability algorithm the calculation of partial derivative of performance function is avoided......
Retraction control of motorized seat belt system with linear state observerLee Kang-seok, Choi Chin-chul, Lee Woo-taik(Department of Control and Instrumentation Engineering, Changwon National University, Changwon 641-773, Korea)Abstract:a design and verification of linear state observers which estimate state information such as angular velocity and load torque for retraction control......
with titanium alloy, the steady state of aluminum alloy pre-occurs. The temperature distribution and dynamic distortions of two alloys at different positions are shown in Fig.6. It can be seen from Fig.6... alloy and aluminum alloy occur at 115 s and 80 s, respectively. The steady state of aluminum alloy pre-occurs. With welding heat input increasing, the time of two alloys reaching steady state also......
evaluation of steady-state characteristic of 316L stainless steel passive film grown in acidic solution [J]. Electrochemistry Communications,2013,26(3): 10-12. (Edited by YANG Bing) Foundation item... observation, in which solid solution and the as-aged state of each alloy were compared to discuss the influence mechanism of lead and aluminium on the electrochemical properties of alloys. The X-ray......
......
Microstructural evolution of NiFe2O4-10NiO powder prepared by high temperature solid state reaction ZHANG Lei(张 雷), ZHOU Ke-chao(周科朝), LI Zhi-you(李志友), YANG Wen-jie(杨文杰) State Key Laboratory... was prepared by high temperature solid state reaction. The microstructural evolution from the raw materials NiO and Fe2O3 to the NiFe2O4-10NiO powder was studied by SEM. The results show that the domain......
to see that Eq. (1) is a fourth order nonliear state equation. Assume that the converters work in the quiescent point Q. In this steady condition, the duty ratios of the point are D1 and D2, the dc input.... During quiescent operation, the following steady-state conditions are satisfied: (2) where Draw a tiny perturbation at the quiescent point Q of the state variables......
J. Cent. South Univ. Technol. (2009) 16: 0154-0159 DOI: 10.1007/s11771-009-0026-2 Application of empirical mode decomposition based energy ratio to vortex flowmeter state diagnosis SUN Zhi-qiang...; Abstract: To improve the measurement performance, a method for diagnosing the state of vortex flowmeter under various flow conditions was presented. The raw sensor signal of the vortex flowmeter......
J. Cent. South Univ. Technol. (2008) 15: 34-38 DOI: 10.1007/s11771-008-0008-9 Coating of LiNi1/3Mn1/3Co1/3O2 cathode materials with alumina by solid state reaction at room...; Abstract: Alumina coated LiNi1/3Mn1/3Co1/3O2 particles were obtained by a simple method of solid state reaction at room temperature. The reaction mechanism of solid state reaction at room temperature......