1. The John and Willie Leone Family Department of Energy and Mineral Engineering and the EMS Energy Institute, Penn State University, University Park, Pennsylvania 16802, United States
2. US Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Research Triangle Park, North Carolina 27711, United States
3. US Environmental Protection Agency, National Vehicle and Fuel Emissions Laboratory (NVFEL), Ann Arbor, Michigan 48105, United States
4. US Air Force, Arnold Engineering Development Complex (AEDC), Arnold Air Force Base, Tennessee 37389, United States
5. US Department of Energy, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
6. Artium Technologies Incorporated, Sunnyvale, California 94085, United States
7. Singularity Scientific Consulting Services, Limited Liability Company, Whitmore Lake, Michigan 48189, United States
8. Aerodyne Research Incorporated, Billerica, Massachusetts 01821, United States
9. Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States