PERRY XIAO, PHD, is an Associate Professor and Course Director of London South Bank University. He teaches undergraduate and postgraduate students in the areas of electronics, software programming, and computer networks. Dr. Xiao has designed and taught several modules focused on Java programming. He is also a director and cofounder of Biox Systems Ltd, a university spin-out company that designs and manufactures the AquaFlux and Epsilon Permittivity Imaging systems.