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浏览/检索结果: 共5条，第1-5条 帮助 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 Noise reduction of a safety valve pressure relief signal based on an improved wavelet threshold function 期刊论文 Zhendong yu Chongji/Journal of Vibration and Shock, 2021, 卷号: 40, 期号: 12, 页码: 143-150 作者:  Li, Shuxun;  Wang, Zhihui;  Kang, Yunxing;  Hou, Jianjun 收藏  |  浏览/下载：10/0  |  提交时间：2022/02/17 Butterworth filters  Exponential functions  Safety valves  Wavelet decomposition  Adaptive wavelet thresholds  Adjustment factors  Attenuation characteristics  Mechanical systems  Noise reduction effect  Noise reduction methods  Simulated signals  Threshold functions   Leakage source locating of safety valve based on improved KDE algorithm 期刊论文 Zhendong yu Chongji/Journal of Vibration and Shock, 2021, 卷号: 40, 期号: 11, 页码: 277-284 作者:  Li, Shuxun;  Hou, Jianjun;  Kang, Yunxing;  Wang, Zhihui 收藏  |  浏览/下载：9/0  |  提交时间：2022/02/17 Acoustic noise  Location  MATLAB  Safety testing  Safety valves  Signal to noise ratio  Spectrographs  Environmental noise  Frequency division  High frequency HF  Kernel Density Estimation  Kernel density function  Simulation computing  Source locating  Working pressures   Study on Aerodynamic Noise Numerical Simulation and Characteristics of Safety Valve Based on Dipole and Quadrupole 期刊论文 Acoustics Australia, 2020, 卷号: 48, 期号: 3, 页码: 441-454 作者:  Li, Shuxun;  Hou, Jianjun;  Pan, Weiliang;  Wang, Zhihui;  Kang, Yunxing 收藏  |  浏览/下载：8/0  |  提交时间：2022/02/17 Acoustic fields  Acoustic generators  Acoustic variables measurement  Acoustic wave transmission  Aerodynamics  Forecasting  Numerical methods  Numerical models  Safety valves  Turbulence  Aerodynamic noise  Different operating conditions  Exhaust pressure  Numerical simulation method  Prediction accuracy  Sound pressure level  Steady-state flow field  Unsteady disturbance   Flow-induced noise of a high pressure drop control valve 期刊论文 Zhendong yu Chongji/Journal of Vibration and Shock, 2020, 卷号: 39, 期号: 14, 页码: 116-121 作者:  Li, Shuxun;  Kang, Yunxing;  Meng, Lingqi;  Pan, Weiliang;  Zhang, Wannian 收藏  |  浏览/下载：5/0  |  提交时间：2020/11/14 Safety valves  Flow induced noise  Operation process  Parameter control  Parametric design  Pressure pulsation  Sound pressure level  Spectrum characteristic  Structure parameter   论农村留守与非留守妇女之间“围城心理” 期刊论文 河北学刊, 2013, 期号: 3, 页码: 5-6 作者:  申康达;  杨光宇;  辛允星 收藏  |  浏览/下载：3/0  |  提交时间：2014/11/12 留守妇女  非留守妇女  围城心理  两难选择