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Qiang Cheng, Yong Cao, Zhifeng Liu, Lingli Cui, Tao Zhang and Lei Xu
The computer numerically controlled (CNC) system is the key functional component of CNC machine tool control systems, and the servo drive system is an important part of CNC systems. The complex working environment will lead to frequent failure of servo d...
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Tao Zhang, Xiaojun Wang, Zhifeng Jin, Shamsuddin Shahid and Bo Bi
In this paper, the quantitative effects of climatic factor changes on irrigation water use were analyzed in Jiangsu Province from 2004 to 2020 using the Empirical Mode Decomposition (EMD) time-series analysis method. In general, the irrigation water use,...
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Mai Xin, Zhifeng Ye, Tong Zhang and Xiong Pan
After many years of development, the technology of analyzing the working condition of power units based on vibration signals has received relatively stable applications, but the accuracy and the degree of automation and intelligence for fault diagnosis a...
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Zhifeng Zhou, Zhichao Zhang, Zhenxun Gao, Ke Xu and Chun-Hian Lee
Numerical simulations of hypersonic magnetohydrodynamics (MHD) flow over a typical sphere?cone blunt body are carried out based on the assumption of a low magnetic Reynolds number. The effects of an external dipole magnetic field on the surface heat flux...
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Zhifeng Wan, Junsheng Luo, Xiaolu Yang, Wei Zhang, Jinqiang Liang, Lihua Zuo and Yuefeng Sun
Mud volcanoes and other fluid seepage pathways usually transport sufficient gas for the formation of gas reservoirs and are beneficial to the accumulation of gas hydrate. On the other hand, the fluid thermal effects of mud volcanoes can constrain the occ...
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Zhifeng Hu, Zhinong Li, Liying Ge, Qinghua Mao and Xuhui Zhang
The problems of the synchroextracting transform method being unable to handle FM signals and being prone to time?frequency feature discontinuity in a strong noise environment are addressed by the construction of a novel rotation synchroextracting chirple...
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Mengmeng Liu, Zhifeng Liu, Junmin Chen, Liang Jiang, Caixia Zhang and Xianyong Li
A low friction coefficient and high bearing capacity can improve the service life of implants in the human body. In this study, we firstly investigate the mechanical properties of inorganic thermal oxide coatings on titanium alloy (Ti6Al4V). Tribological...
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Feng Zhang, Zhifeng Zhang, Sa Xiao, Kai Xie, Jiawei Ni, Haolun Gu, Yong Wu, Yang Ning and Qingchao Xia
The subsea observation network has become an indispensable means of ocean exploration worldwide. However, the scale of the subsea observation network is limited by the power supply voltage and power level. Hence, to promote the development of a subsea ob...
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Pengcheng Yin, Jiyi Zhang, Xiying Sun, Di Hu, Zhifeng Shi and Chengyan Wu
Vertex concavity-convexity detection for spatial objects is a basic algorithm of computer graphics, as well as the foundation for the implementation of other graphics algorithms. In recent years, the importance of the vertex concavity-convexity detection...
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Pengfei Zhang, Zhifeng Tang, Fuzai Lv and Keji Yang
Ultrasonic guided waves (UGWs) have attracted attention in the nondestructive testing and structural health monitoring (SHM) of multi-wire cables. They offer such advantages as a single measurement, wide coverage of the acoustic field, and long-range pro...
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