- Influence of fuel on engine performance and emissions
- Biodiesel
- JP-8
- Natural gas
- Ethanol
- Lean-burn
- Low temperature combustion
- Dual-fuel (diesel, natural gas)
- Plasma-assisted combustion (microwave, corona discharge)
- Transmission electron microscopy (TEM) imaging: primary particle size, fractal dimension, nano-structure analysis
- Thermogravimetric analysis (TGA) - soot composition
- Elemental analysis (EA): C,H,O,N,S