A device and method for conditioning andor volumetric heating fuel within an internal combustion engine in order to enhance fuel combustion and emission performance is provided. The kind of each of bills successively fed in is specified by bill checking means for identifying the kind of a bill, and reference thickness information regarding the sheet of a specified kind is read from a reference thickness table recording a bill kind and the thickness information of a bill full surface. A beam of electromagnetic radiation is projected onto at least a part of the SLM. The ball head softens the glove by physical contact as well as friction-induced heat. The apertures can be formed as axial or helical slits in the surface of the reinforcing tube, and the reinforcing tube can also be formed to be tapered at the point where the apertures are formed in the reinforcing tube to provide a heating catheter that is torqueable and pushable at the proximal end, yet soft and flexible at the distal end.