Coal liquefaction, Coal surface properties, Removal of heavy metals from wastewater with ion exchanging absorbents, Formulations of bio-mass absorbents for removal of heavy metals from wastewater, Formulations of metal oxide sorbents for desulfurization of hot coal gases, Infinitesimal interactions between probe compounds and solids with flow microcalorimetry or inverse liquid chromatography, High temperature and High pressure reactions, Non-Newtonian fluids, and Reaction kinetics and models.