1. Niksa Energy Associates, 1745 Terrace Drive, Belmont, California 94002
2. Department of Chemical Engineering, University of Connecticut, 191 Auditorium Road, Unit 3222, Storrs, Connecticut 06269-3222
3. Coal Research Laboratory, Idemitsu-Kosan Corp., Ltd, 3-1, Nakasode, Sodegaura, Chiba 299-0267, Japan