Abstract: This is a novel speaker design which introduces its own integrated bass-reflex. This design allows for improved cooling for the speaker's voice coil over existing designs and has acoustics that are more natural and of higher quality than known speakers.

Abstract: The invention is a two-stroke engine that incorporates advantages of both the two-stroke and four-stroke types of engines. The crankcase is sealed and uses an oil pump to lubricate the piston, connecting rod, and crankshaft. The combustion air does not flow through the crankcase. Instead, the engine uses two camshafts, one for the intake valve located on the cylinder head and the other for the exhaust valve located on the side of the cylinder. The engine has a compressor, powered by the engine battery to compress ambient air before it enters into the combustion chamber. Additionally, the engine has an exhaust powered turbine connected to an alternator, which provides additional power for the engine battery. The engine is equipped with one or plurality of fuel-injection nozzles. The piston is of the two step type, which reduces friction between the piston and the cylinder.

Abstract: This is a novel speaker design which introduces its own internal bass-reflex. This design improves over existing designs in that it leads to acoustics that are more natural and of higher quality and, that it also leads to much improved cooling for the speaker's voice coil.

Abstract: This is a novel two-stroke engine design which achieves the best properties of both the two and the four-stroke types of engine. The design has a simple and effective lubrication system, a clean exhaust system, and an increased power to displacement ratio.

Abstract: Systems and methods are disclosed for controlling, diagnosing and prognosing the health of a motorized system. The systems may comprise a diagnostics system, a prognostic system and a controller, wherein the diagnostics system and/or prognostic system employs a neural network, an expert system, and/or a data fusion component in order to assess and/or prognose the health of the motorized system according to one or more attributes associated therewith. The controller may operate the motorized system in accordance with a setpoint and/or a diagnostics signal from the diagnostics system and/or prognostic information.