1. Members, ASCE
2. Postdoctoral Res. Fellow, Ctr. for Turbulence Research, Bldg. 500, Stanford Univ., Stanford, CA 94305-3030; formerly, Grad. Res. Asst., Iowa Inst. of Hydraulic Research and Dept. of Civ. and Envir. Engrg., Univ. of Iowa, Iowa City, IA 52242-1585.
3. Dir., Iowa Inst. of Hydraulic Research; Univ. of Iowa Found. Distinguished Prof., Dept. of Mech. Engrg., Univ. of Iowa, Iowa City, IA.