Transformer Oil Acid Value Prediction Method Based on Infrared Spectroscopy and Deep Neural Network. - Fang, Linjie; Zong, Chuanshuai; Pang, Zhenguo; Tian, Ye; Huang, Xuezeng; Zhang, Yining; Wang, Xiaolong; Zhang, Shiji (Energies (19961073), 2025)