1. Regents’ Professor, Center for Bio-mediated and Bio-inspired Geotechnics, Arizona State Univ., Tempe, AZ 85287-3005.
2. Graduate Research Assistant, Center for Bio-mediated and Bio-inspired Geotechnics, Arizona State Univ., Tempe, AZ 85287-3005.
3. Industry Liaison Officer, Center for Bio-mediated and Bio-inspired Geotechnics, Arizona State Univ., Tempe, AZ 85287-3005.