1. Professor, Dept. of Civil and Materials Engineering, Univ. of Illinois at Chicago, 842 West Taylor Street, Chicago, IL 60607.
2. Graduate Research Assistant, Dept. of Civil and Materials Engineering, Univ. of Illinois at Chicago, 842 West Taylor Street, Chicago, IL 60607.
3. Associate Professor, Dept. of Chemical Engineering, Univ. of Vigo, University Campus, Building Fundicion, 36310 Vigo, Spain (corresponding author).