1. Professor, Dept. of Civil and Geomatics Engineering, California State Univ., Fresno, Fresno, CA.
2. Research Assistant, Dept. of Civil and Geomatics Engineering, California State Univ., Fresno, CA
3. Research Assistant (Volunteer), Clovis North Educational Center, Fresno, CA
4. Research Scientist, Center for Irrigation Technology, California State Univ., Fresno, CA
5. Dept. of Civil and Geomatics Engineering, California State Univ., Fresno, CA