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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 发表日期：2014     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 An EMD threshold-based de-noising method for roller bearing fault vibration signal analysis 期刊论文 Journal of Computational Information Systems, 2014, 卷号: 10, 期号: 17, 页码: 7645-7652 作者:  Bao, Guangqing;  Chang, Yong;  He, Ting 收藏  |  浏览/下载：7/0  |  提交时间：2020/11/14 Bearings (machine parts)  Feature extraction  Roller bearings  Rollers (machine components)  Signal analysis  Signal processing  Signal to noise ratio  Vibration analysis  Wavelet decomposition  Empirical Mode Decomposition  Fault feature extractions  Intrinsic Mode functions  Rolling bearings  Signaltonoise ratio (SNR)  Vibration signal  Vibration signal analysis  Wavelet thresholding   Regeneration and Tree Species Diversity of Sitakund Botanical Garden and Eco-Park; Chittagong; Bangladesh 期刊论文 Journal of Mountain Science, 2014, 卷号: 11, 期号: 4, 页码: 950-958 Rajasree NANDI; Harald VACIK 收藏  |  浏览/下载：18/0  |  提交时间：2014/07/08 Human influence  Species diversity  Vegetation structure  Regeneration  Disturbance index   Optimal pole disposal and random vibration analysis of structures with supplemental viscous damping 期刊论文 Zhendong yu Chongji/Journal of Vibration and Shock, 2014, 卷号: 33, 期号: 11, 页码: 114-118+135 作者:  Du, Yong-Feng;  Li, Chun-Feng;  Li, Hui 收藏  |  浏览/下载：22/0  |  提交时间：2020/11/14 Damping  Earthquakes  Poles  State feedback  Stiffness  Stiffness matrix  Displacement components  External disturbances  Pseudo excitation methods  Random vibration analysis  State feedback gain  Structural stiffness  Supplemental viscous damping  Viscous damping   Detecting Rotating Stall Precursors in Axial Compressors via Perturbations Part 2: Experiments 期刊论文 journal of propulsion and power, 2014 Dong, Wanjing; Wang, Yong 收藏  |  浏览/下载：12/0  |  提交时间：2015/11/13 CIRCUMFERENTIAL FLOW DISTORTION  INLET-DISTORTION  INSTABILITY  SYSTEMS   A bit-allocation scheme for feedback control under information constraints 期刊论文 ICIC Express Letters, 2014, 卷号: 8, 期号: 11, 页码: 3121-3126 作者:  Liu QQ(刘庆泉);  Xiu, Yang;  Cao, Zhen 收藏  |  浏览/下载：19/0  |  提交时间：2015/01/09 Bandwidth  Digital communication systems  Discrete time control systems  Feedback control  Linear control systems  Stabilization   Robust extended Kalman filter for attitude estimation with multiplicative noises and unknown external disturbances 期刊论文 IET CONTROL THEORY AND APPLICATIONS, 2014, 卷号: 8, 页码: 1523-1536 作者:  Qian Hua-ming;  Huang Wei;  Qian Lin-chen;  Shen Chen 收藏  |  浏览/下载：7/0  |  提交时间：2020/01/06 nonlinear filters  Kalman filters  nonlinear systems  random processes  state estimation  covariance matrices  noise  attitude estimation  multiplicative noises  unknown external disturbances  robust extended Kalman filtering problem  nonlinear attitude estimation systems  random variables  bounded variance  bounded set  optimised upper bound  state estimation error variance  REKF  stochastic stability theory  covariance matrices