**About the Editors**

#### **Guoqing Zhang**

Prof. Dr. Zhang Guoqing is currently a Research Professor in the College of Mechatronics and Control Engineering at Shenzhen University. He achieved his Bachelor's degree in Mechanical Engineering at Northeast Petroleum University, China, in 2005. In 2009, he achieved his Master's degree in Mechanical Engineering at Harbin Institute of Technology, China. Additionally, he achieved his Ph.D. degree at The Hong Kong Polytechnic University in 2014. He has been selected for the Shenzhen Peacock Program for Overseas/Professional High-Level Talents. He serves as a Deputy Director of Guangdong Key Laboratory of Electromagnetic Control and Intelligent Robots; Deputy Director of Shenzhen Key Laboratory of High Performance Nontraditional Manufacturing; Committee Member of the Chinese Mechanical Engineering Society Design Branch; and a Member of Advanced Optical Manufacturing Young Expert Committee of Chinese Optical Engineering Society. His research interests include ultra-precision machining technology and equipment, robots and intelligent equipment, etc. To date, he has hosted more than 10 research projects including 3 National Natural Science Foundation of China (NSFC) projects; he has published more than 80 peer-reviewed papers; he has been granted 14 US patents and 28 CN patents; and he has co-edited 2 books. He is now served as an Academic Editor for the international journal *Shock and Vibration*, and contributes as a reviewer for more than 10 other international journals. He has won more than five prizes, including the China Industry-University-Research Cooperation Promotion Award (individual) and a second prize in innovation achievement.

#### **Zejia Zhao**

Dr. Zhao Zejia is currently an Assistant Professor in the College of Mechatronics and Control Engineering at Shenzhen University. His research interests mainly include ultra-precision machining, the cutting of difficult-to-cut and brittle materials, and numerical modeling. As a principal investigator, he has taken charge of several projects, such as those organized by the National Natural Science Foundation of China (NSFC), the Department of Education of Guangdong Province, and Shenzhen Stable Support. Dr. Zhao is also a Member of the Advanced Optical Manufacturing Youth Expert Committee. He has been awarded as a talent of the Shenzhen Peacock Project.

#### **Wai Sze YIP**

Dr. Yip Wai Sze is currently a Research Assistant Professor at the Department of Industrial and Systems Engineering of The Hong Kong Polytechnic University. She achieved her Ph.D. degree in Ultra-Precision Machining at The Hong Kong Polytechnic University in 2018. She achieved a double degree of a BBA in Marketing and a BEng in Industrial and Systems Engineering at The Hong Kong Polytechnic University in 2014, and a BEng degree in Electronic and Communication Engineering at City University of Hong Kong in 2006. Before joining the ISE of PolyU, Dr Yip worked as a Research Fellow at the National University of Singapore. Her research focuses on the ultra-precision machining of difficult-to-cut materials, sustainable precision machining, and the sustainability development of precision manufacturing. Dr Yip has published research in top-tier SCI journals such as *Energy*, the *Journal of Cleaner Production*, the *Journal of Alloy and Compounds*, and *IEEE Access*. In 2018, one of her papers in *Scientific Reports* was recognized as being one of the top 100 papers in materials science. In 2019, she received the Excellent Thesis Award, 9th Hiwin Doctoral Dissertation, by the Chinese Mechanical Engineering Society.
