1. Mechanical and Aerospace Engineering Department, Center for Alternative Fuels, Engines, and Emissions at West Virginia University, 151 ESB, 395 Evansdale Drive, Morgantown, WV 26505 (USA)
2. Mechanical and Aerospace Engineering Department, Center for Alternative Fuels, Engines, and Emissions at West Virginia University, 271 ESB Annex, 395 Evansdale Drive, Morgantown, WV 26505 (USA)