1. Senior Engineer, Singapore Offshore Technology Center, ABS Pacific, 438 Alexandra Rd. #10-00, Singapore 119958; formerly, Assistant Professor, School of Civil and Environmental Engineering, Nanyang Technological Univ., Singapore (corresponding author). E-mail: wgho@eagle.org
2. Project Engineer, Sonsub Division, Saipem UK Ltd., Tern Place, Denmore Rd., Bridge of Don, Aberdeen AB23 8JX, U.K.; formerly, Research Scholar, School of Civil and Environmental Engineering, Nanyang Technological Univ., Singapore.