Self-Powered Wireless Sensor Node for Smart Railway Axle Box Bearing via a Variable Reluctance Energy Harvesting System. - Yun Gong; Sijia Wang; Zhengqiu Xie; Tao Zhang 083; Wenqiang Chen; Xingjie Lu; Qiang Zeng; Yuhan Gao; Wenbin Huang 002 (IEEE Trans. Instrum. Meas., 2021)