Please remove my name from the mailing list. Thank you. -- Wei-Chau Xie, Ph.D. Associate Professor and Associate Chair for Undergraduate Studies Department of Civil Engineering Faculty of Engineering University of Waterloo Waterloo, Ontario, Canada N2L 3G1 Phone: (519)888-4567, ext.3988 Fax: (519)888-6197 E-mail: xie@uwaterloo.ca Homepage: http://sunburn.uwaterloo.ca/~xie