kelvin kinetic keV pyroprocessing meter2 MeV kBT kJ KeV kilojoules kelvins poundal mJ megajoules cyclophanes epsilonQundk SdT kT TQundC mol Ediff reradiated temperature dGH GeV MPGe diphosphoglycerate oersted HQdgform PQflevkivi zettajoules HSPF TQunde thermostatically