.TILMedia.BaseClasses.PartialGasObjectFunctions.der_specificEnthalpy_psxi .TILMedia.BaseClasses.PartialGasObjectFunctions.der_specificEnthalpy_psxipartial function der_specificEnthalpy_psxi = TILMedia.BaseClasses.PartialGasObjectFunctionPrototypes.der_specificEnthalpy_psxi;