Jean-Paul Marage is currently retired from his main activities as an electronic engineer. He has formerly held positions as a CNAM electronic engineer; an Ecole Supérieure d’Electricité engineer for SUPELEC Paris; and was Manager, for 25 years, of the Research and development laboratory at Thales Underwater Systems, Sophia Antipolis, France. He also worked as an acoustic and electronic sonar system expert for 5 years and a CNAM (Conservatoire National des Arts et Métiers) teacher in electronics for 25 years.

Yvon Mori, although retired from his main activities as an electronic engineer, is still Chairman of the SEE French Riviera (Société de l’Electricité, de l’Electronique et des Technologies de l’Information et de la Communication) and the IEEE in France. He is also a COFRAC Auditor for programme 38 and trains engineers in mechanical vibration, shock analysis and electromagnetic compatibility for major companies. Before retirement he was, for 37 years, the manager of the environmental test and evaluation laboratory at Thales Underwater Systems in Sophia Antipolis, France.