Suet To Editor

Prof. Sandy, Suet To is a Professor of the Department of Industrial and Systems Engineering of The Hong Kong Polytechnic University, Associate Director of State Key Laboratory of Ultra-precision Machining Technology. Prof. To was graduated from Kunming University of Science and Technology with Bachelor Degree in Mechanical Engineering and obtained her MPhil degree in Materials Science from Brunel University in UK and PhD in Ultra-precision Machining Technology from The Hong Kong Polytechnic University. She started her academic career as Assistant Professor in 2005 and promoted to Associate Professor and Professor in 2010 and 2018 respectively. Since 1994, she began to engage in the fundamental and applied researches in ultra-precision machining, micro/nanostructured surface, difficult-to-cut materials, advanced optical manufacturing, precision injection molding technology and material engineering. Her main research directions include the mechanism of ultra-precision machining, design and machining of micro-nanostructures, the influence of materials in ultra-precision machining, the processing mechanism of brittle materials and other materials, the machining strategy of multi-axis ultra-precision machining, the tool path generation, the online inspection of cutting tool and error compensation, and precision mold for plastic injection molding technology. Prof. To has successfully received grants from more than 20 research projects including General Research Fund from Hong Kong Research Grants Council, Innovation and Technology Fund of the Hong Kong Innovation and Technology Commission, National Natural Science Foundation of China, and the research projects jointly organized by the European Commission/Hong Kong Research Grants Council, etc. She has published four books, and more than 280 international journals (SCI) and 150 international conference papers. She has been invited to deliver Keynotes and invited talks at international conferences for many times. According to Web of Science, the academic papers published by Prof. To with ranking first in the fields of ultra-precision machining. In addition, she successfully obtained 13 granted patents as the first inventor. Prof. To's achievements in research and professional studies have been widely recognized locally and internationally. She has received the Second Class Technology Progress Award from China's Ministry of Education in 2009 and the Second Class in Natural Science Award from China's Ministry of Education in 2011 respectively. The developed project entitled "High Power LED Street Lighting System with a Modular Lamp Holder" beat 1,000 invention projects around the world and won three awards at the 36th Geneva International Invention and Innovative Technology and Products Exhibition in Switzerland, which include the Grand International Press Prize, the Gold Award, and the Award of High Scientific and Technological Level of Invention from the Romania Ministry of Education, Research and Youth at the 36th International Exhibition of Inventions, New Techniques & Products. The research project entitled "Micro-Nano Structure Surface by Rapid Prototyping Technology for Anti-counterfeiting" won the Gold Award and the Outstanding Ultra-Precision Technology Invention Award in the Asia International Innovation and Invention Award in 2019. Prof. To holds various honorary positions in professional bodies including Board Member of the Asian Society for Precision Engineering and Nanotechnology (ASPEN), Committee Member of the Production Engineering Division of the Chinese Society for Mechanical Engineers (CSME) and Associate Member of the International Academy for Production Engineering (CIRP). She also serves as Associate Editor for Journal of Materials Processing Technology and Editorial Board member in several international journals, such as Journal of Manufacturing and Materials Processing, Journal of Applied Optics, Journal of Nano-manufacturing and Metrology, International Journal of Extreme Manufacturing and Chinese Journal of Mechanical Engineering.

Dr. Grace, Sujuan Wang is an Associate professor of School of Electromechanical Engineering in Guangdong University of Technology. Dr. Wang obtained her Bachelor Degree in Mechanical Engineering from Harbin University of Science Technology, and MPhil degree in Mechanical Engineering from Harbin Institute of Technology and PhD degree in Ultra-precision Machining Technology from The Hong Kong Polytechnic University. Dr. Wang is one of core members of Guangdong Innovative Research team, Communication Review Expert of National Natural Science Foundation of China (NSFC) and Senior Member of China Society of Mechanical Engineering. Her major research areas include the ultra-precision machining, advanced optics manufacturing technology and development of ultra-precision machine tools. She has published over 60 research papers in international journals and conferences, as well as obtained morethan 10 patents in China. She has secured 5 NSFC projects and over 10 projects from Guangdong province and Guangzhou City.