1. Deputy Director, Technical Research Institute, Mitsui Construction Co., Nagareyama-City, Japan.
2. Senior Structural Engineer, Civil Engineering Division, Mitsui Construction Co., Makuhari, Japan.
3. Senior Plant Engineer, Plant Engineering Division, Mitsui Construction Co., Makuhari, Japan.
4. V. & M. Jones Professor of Civil Engineering, Univ. of Missouri-Rolla, Rolla, MO.