1. Assistant Professor, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Kansas, 1530 W. 15th St., 2150 Learned Hall, Lawrence, KS 66045.
2. Associate Professor, Dept. of Engineering Technology and Civil Engineering, Texas Tech Univ., Lubbock, TX 79409.
3. Senior Researcher, Dept. of Civil Engineering, Texas Tech Univ., Lubbock, TX 79409.