Cheng, Xuezhen, Chuannuo Xu, Hanlin Sun, and Jiming Li. 2025. “Fault Feature Extraction in Rolling Bearings Using Time-Frequency Analysis and Optimized Variational Mode Decomposition”. Computing and Informatics 44 (4). http://147.213.75.17/ojs/index.php/cai/article/view/7469.