1. Member, ASCE
2. Sr. Envir. Engr., Sun Microsystems, Inc., Menlo Park, CA 94025; formerly, Postdoctoral Res., Dept. of Mech. and Envir. Engrg., Univ. of California, Santa Barbara, CA 93106.
3. Prof. of Mech. and Envir. Engrg., Univ. of California, Santa Barbara, CA.