Heating units, drug supply units and drug delivery articles capable of rapid heating are disclosed. The object is preferably packaging, a vehicle or a residential, commercial or industrial building or establishment. The ramp is coupled to the vessel in such a way as to permit one translational and three rotational degrees of freedom at the vessel-end of the ramp. The routing process uses this information to determine how the call should be routed. This method includes identifying pixel locations having pixel values matching characteristics of human skin and determining a bounding shape for each contiguous grouping of matching pixel locations. This process comprises a chemical treatment with an aqueous solution comprising a complexing agent combination of at least one oxidant, a subsequent rinsing and a subsequent treatment at elevated temperature in an oxygen-containing atmosphere.