1. Research Assistant, Laboratory for the Chemistry of Construction Materials (), Dept. of Civil and Environmental Engineering, Univ. of California, Los Angeles, CA 90095.
2. Research Scientist, Dept. of Materials Science and Engineering, Univ. of California, Los Angeles, CA 90095; and Technology Analyst, Institute for Technology Advancement, Univ. of California, Los Angeles, CA 90095.
3. Research Scientist, Laboratory for the Chemistry of Construction Materials (), Dept. of Civil and Environmental Engineering, Univ. of California, Los Angeles, CA 90095.
4. Application Development Manager and Deputy Industrial Team Leader, Yara Technology Center (YTC), Yara Industrial Nitrates, B-0213 Porsgrunn, Norway.
5. Assistant Professor and Rice Endowed Chair in Materials Science, Laboratory for the Chemistry of Construction Materials (), Dept. of Civil and Environmental Engineering, Univ. of California, Los Angeles, CA 90095; and Faculty Member, California Nanosystems Institute (CNSI), Univ. of California, Los Angeles, CA 90095 (corresponding author).