In memory of academician Ye Minghan

After completing my doctoral studies at the University of Tsukuba, Japan, in 1994, I returned to China that same year to commence my research career at the Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS). During that time, I was privileged to receive extensive guidance and hands-on support from Prof. Ye Minghan at a pivotal moment for the development of positron science and the cultivation of talent in the field. Words cannot fully convey my deep gratitude, and I have penned this paper in his memory.