1. Dep. of Civil Engineering Indian Institute of Technology Guwahati Assam India
2. Dep. of Civil Engineering Techno India Univ. Kolkata 700091 India
3. Prairie Research Institute Univ. of Illinois Urbana‐Champaign Champaign IL USA
4. South West Univ. of Science and Technology Mianyang Sichuan China
5. Dep. of Biosciences and Bioengineering Indian Institute of Technology Guwahati Assam India