Prof. Jun CAI. He received his Ph. D of Engineering from School of Mechanical Engineering and Automation (SMEA), Beihang University in Year 2004, then he worked as a senior research engineer at GE global Research Center for 3 years, after which he joined SMEA, Beihang University as an Asso. Prof in 2008, and was promoted to be Professor in Year 2014. Jun’s research interests involve using bio-prototype as templates to fabricate complex micro/nano/multi-scale particles/ structures/ composites. He has published over 70 papers in peer reviewed journals and proceedings, including over 40 papers were indexed by SCIE.