1. Design Engineer, Tony Gee and Partners LLP, Hardy House, 140 High Street, Esher, Surrey KT10 9QJ, U.K.; formerly, Dept. of Engineering, Univ. of Cambridge, Trumpington St., Cambridge CB2 1PZ, U.K.
2. University Senior Lecturer, Dept. of Engineering, Univ. of Cambridge, Trumpington St., Cambridge CB2 1PZ, U.K.