Zhu Ziqiang, one of the world’s leading experts in electric motor engineering, has left his four-decade career in Britain to take up a full-time position at Hong Kong Polytechnic University.In his new role as chair professor of electrical machines and control systems, Zhu will continue his long-standing work on high-efficiency permanent magnet motors, according to his faculty page on the PolyU website.Zhu spent 38 years at the University of Sheffield, where he eventually established what was...