A mounting enclosure and an improved mounting arrangement for apparatus used in metal melting, refining and processing, particularly those apparatus adapted for steel making in an electric arc furnace, such as burners, lances and the like with supersonic oxygen lancing capability and injectors or the like for the introduction of particulate matter. The surface comprises a nanolayer of a material that switches from a first conformation state to a second conformation state when an external stimulus is applied. The gas turbine engine also includes a turbine section coupled to the combustor. The rotatable selector can be offset or set at a tilt angle of up to \xb15\xb0 with respect to the length of the apparatus. In an exemplary embodiment, both synchrony measures and plausibility measures are employed. A first metal layer of the at least two metal layers has a power supply metal pattern and a heat transfer metal pattern that are formed electrically insulated from each other.