JOE H. CHOW (周祖康), PHD, FIEEE, NAE, is Institute Professor of Electrical, Computer, and Systems Engineering at Rensselaer Polytechnic Institute, Troy, NY, USA.
JUAN J. SANCHEZ-GASCA, PHD, FIEEE, is a Technical Director at GE Energy Consulting, Schenectady, NY, USA.
