Yi Yang earned a PhD at Nanjing University of Science and Technology, Nanjing, China, in 2008. She worked for five years at the Astronaut Research and Training Center, Beijing, China, and was involved in postdoctoral research at the School of Reliability and Systems Engineering, Beihang University (BUAA), Beijing, China, where she is currently an associate professor. She was a visiting scholar at the School of Computing and Mathematics, University of Western Sydney, Parramatta, Australia, for one year. Her main research interests include reliability analysis and design, repairable systems, control science, and engineering. Her recent research work includes instantaneous availability modeling methods, fluctuations analysis, and control.
Yong-Li Yu was born in 1964. He earned a BS at Shijiazhuang Mechanical Engineering College, Shijiazhuang, China, in 1982, and MS and PhD degrees at the College of East China Technology, Nanjing, China, in 1987 and 1990, respectively. Now he is
