A direct-injection type diesel engine comprises a cylinder head with a fuel injection nozzle and a glow plug attached thereto. The PMN-PT compounds are characterized by the formula PbO3xPbTiO3 where x is about 0. This can then reduce voltage use in digital circuits. The drain collector collects drainage from the drains into the exhaust line. The base, strike, and top layers can be deposited using physical vapor deposition, evaporation, reactive sputtering, or metal organic chemical vapor deposition. In accordance with another embodiment of the present invention, the head assembly includes an hyperbolic reflector.