A hermetic Rankine cycle in a sealed casing powers an internal centrifugal condensate pump with an internal vapor turbine during forced convective heat transfer between a heat source and a heat sink. The apparatus has a distal elongate sword having a longitudinal axis and being adapted for insertion into the intramedullary canal of the femur. The digital image includes one or more color arrangements characteristic of the first region and one or more color arrangements characteristic of the second region. The offset information specifies offset control for a plurality of pictures constituting a GOP.