Comparison of valley-to-valley and peak-to-peak intervals from photoplethysmographic signals to obtain heart rate variability in the sitting position. - Xiang Chen; Tianjun Chen; Feifei Luo; Jin Li 027 (BMEI, 2013)

Analysis of typical operation scenarios of Hunan power system based on improved K-means method. - Binkun Xu; Tianjun Chen; Jing Liao 012; Yang Li 217; Chengqing Gui; Yuxin Zhang (AIBDF, 2023)