.TILMedia.BaseClasses.PartialGasObjectFunctions.der_thermalConductivity_pTxi .TILMedia.BaseClasses.PartialGasObjectFunctions.der_thermalConductivity_pTxipartial function der_thermalConductivity_pTxi = TILMedia.BaseClasses.PartialGasObjectFunctionPrototypes.der_thermalConductivity_pTxi;