Y.K. Cheung (Hong Kong),
   e-mail: hreccyk@hkucc.hku.hk

C.K. Choi (Korea),
   e-mail: cck@kaist.ac.kr

Mutsuto Kawahara (Japan),
   e-mail: kawa@civil.chuo-u.ac.jp

Tadahiko Kawai (Japan),

Somasundaram Valliappan (Australia),
   e-mail: somaval@bigpond.net.au

W.X. Zhong (China),
   e-mail: wxzhong@dlut.edu.cn