Search Results - "Ma, Chaoyong"

Feature extraction method based on adaptive and concise empirical wavelet transform and its applications in bearing fault diagnosis by Zhang, Kun, Ma, Chaoyong, Xu, Yonggang, Chen, Peng, Du, Jianxi

“…•Adaptive and concise empirical wavelet transform was proposed to process the signal.•The spectral segmentation method was optimized by power spectral…”
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Sparsity-guided multi-scale empirical wavelet transform and its application in fault diagnosis of rolling bearings by Zhang, Kun, Tian, Weikang, Chen, Peng, Ma, Chaoyong, Xu, Yonggang

“…Empirical wavelet transform (EWT) is a signal decomposition method that distinguishes signals from the frequency domain. When processing non-stationary and…”
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An Improved Empirical Wavelet Transform and Its Applications in Rolling Bearing Fault Diagnosis by Xu, Yonggang, Zhang, Kun, Ma, Chaoyong, Li, Xiaoqing, Zhang, Jianyu

“…As essential but easily damaged parts of rotating machinery, rolling bearings have been deeply researched and widely used in mechanical processes. The…”
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Nickel oxide thin film electrode synthesized by pneumatic spray pyrolysis with different NiCl2 concentration by Tang, Zhiyong, Ou, Yun, Ma, Chaoyong, Yao, Chenqi, Liu, Longfei, Cheng, Juanjuan

“…NiO has attracted much attention because of its environmental friendliness, high natural abundance, and theoretical specific capacity. The preparation of thin…”
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An Adaptive Spectrum Segmentation Method to Optimize Empirical Wavelet Transform for Rolling Bearings Fault Diagnosis by Xu, Yonggang, Zhang, Kun, Ma, Chaoyong, Sheng, Zhipeng, Shen, Hongchen

“…Bearings play an important role in the industrial system. Among all kinds of diagnosis methods, empirical wavelet transform has been widely used for its…”
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Negentropy Spectrum Decomposition and Its Application in Compound Fault Diagnosis of Rolling Bearing by Xu, Yonggang, Chen, Junran, Ma, Chaoyong, Zhang, Kun, Cao, Jinxin

“…The rolling bearings often suffer from compound fault in practice. Compared with single fault, compound fault contains multiple fault features that are coupled…”
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Fe3O4-PVDF Composite Network for Dendrite-Free Lithium Metal Batteries by Ou, Yun, Ma, Chaoyong, Tang, Zhiyong, Yao, Chenqi, Zhao, Yunzhuo, Cheng, Juanjuan

“…Dendrite growth has been the main trouble preventing the practical application of Li metal anodes. Herein, we present how an Fe3O4-PVDF composite network…”
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A Novel Method for Extracting Maximum Kurtosis Component and Its Applications in Rolling Bearing Fault Diagnosis by Ma, Chaoyong, Zhang, Kun, Fan, Zeyu, Xu, Yonggang

“…Rolling bearing plays an important role in the overall operation of the mechanical system; therefore, it is necessary to monitor and diagnose the bearings…”
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Adaptive Kurtogram and its applications in rolling bearing fault diagnosis by Xu, Yonggang, Zhang, Kun, Ma, Chaoyong, Cui, Lingli, Tian, Weikang

“…•Adaptive Kurtogram is proposed to diagnose bearing faults.•The envelope of spectrum is calculated by order statistics filter.•The minimum values of this…”
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The segment polarity gene hedgehog is required for progression of the morphogenetic furrow in the developing Drosophila eye by Ma, C, Zhou, Y, Beachy, P A, Moses, K

“…Cell-type specification in the Drosophila compound eye begins at the morphogenetic furrow. The furrow sweeps across the developing eye epithelium and is…”
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A Novel Rolling Bearing Fault Diagnosis Method Based on Empirical Wavelet Transform and Spectral Trend by Xu, Yonggang, Deng, Yunjie, Zhao, Jiyuan, Tian, Weikang, Ma, Chaoyong

“…Empirical wavelet transform (EWT) is a new adaptive signal decomposition method based on wavelet theory, the main idea is to establish an appropriate set of…”
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The Enfigram: A robust method for extracting repetitive transients in rolling bearing fault diagnosis by Xu, Yonggang, Deng, Yunjie, Ma, Chaoyong, Zhang, Kun

“…•Enfigram is insensitive to accidental shocks or the rotation frequency interference.•The local minimum is used to divide the boundaries in spectrum trend.•The…”
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A Unique Pattern of Photoreceptor Degeneration in cyclin D1 mutant mice by Ma, Chaoyong, Papermaster, David, Cepko, Constance L.

“…Cyclin D1-deficient mice have small eyes with thin retinas. We observed that there was a lower level of retinal cell proliferation and a unique pattern of…”
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A novel time-frequency slice extraction method for target recognition and local enhancement of non-stationary signal features by Ma, Chaoyong, Liang, Chen, Jiang, Zuhua, Zhang, Kun, Xu, Yonggang

“…Blind deconvolution can remove the effects of complex paths and extraneous disturbances, thus recovering simple features of the original fault source, and is…”
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The CTIgram: A Novel Optimal Demodulation Band Selection Method and Its Applications in Condition Monitoring of Rotating Machinery by Sui, Jifeng, Ma, Chaoyong, Jiang, Zuhua, Zhang, Kun, Xu, Yonggang

“…Theil index is an indicator proposed in the field of economics, developed from the concept of information entropy, used to measure the degree of difference in…”
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Quaternion empirical wavelet transform and its applications in rolling bearing fault diagnosis by Zhang, Kun, Deng, Yunjie, Chen, Peng, Ma, Chaoyong, Xu, Yonggang

“…•Quaternion empirical wavelet transform (QEWT) is proposed to process multi-channel signals.•The minimum values of the spectrum trend are used to divide the…”
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Periodic detection mode decomposition and its application in bearing fault diagnosis by Ma, Chaoyong, Yang, Zhiqiang, Xu, Yonggang, Hu, Aijun, Zhang, Kun

“…In the complex background noise, it is difficult to extract the periodic pulse of the rolling bearing fault signal. In this paper, a new modal decomposition…”
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A bifunctional double-layer Fe3O4-Polyvinylidene fluoride(PVDF)/PVDF separator with enhanced thermal stability for Li-S batteries by Ma, Chaoyong, Su, Jianhui, Zhang, Yanying, Guo, Qianli, Li, Bingming, Wang, JingWen

“…Li-S batteries, utilizing sulfur as the active material, have garnered significant attention due to their impressive theoretical specific capacity of…”
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Copper Activation Enabling Reversible Aqueous Cu−ZnS Battery Chemistry by Yao, Chenqi, Cheng, Juanjuan, Ma, Chaoyong, Tang, Zhiyong, Ou, Yun, Liu, Longfei

“…The aqueous metal‐sulfide batteries (AMSBs) have attracted research interest due to their high capacity, environmentally friendly qualities, and the…”
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Lithium–sulfur battery cathode design:Sulfur-infiltrated PVDF nanofiber-based Fe3O4 network for polysulfide adsorption and volume expansion suppression by Ma, Chaoyong, Yao, Chenqi, Tang, Zhiyong, Wang, Yan, Ou, Yun, Liu, Longfei, Song, Hongjia, Wang, Fang, Cheng, Juanjuan

“…A sustainable polymer/nanomagnetic (PVDF/Fe3O4) composite nanofiber membrane is prepared on the Al current collector using electrospinning to serve as matrix…”
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