A portable bandsaw has a bandsaw blade extending around a plurality of transport wheels driven by a motor. An input pin is connected to a first resonator of the plurality of resonators. Preferably the metering orifice has a diverging exit cone. Similarly, the quality factor of the resonator is adjusted by providing a variable capacitance in an RC network coupling the output of one of the integrator circuits to the input of the other. In some marine applications, seawater or fresh water coolant is discharged into the exhaust gas stream at an attached exhaust elbow. The composition is preferably used in a resist film undergoing oxygen plasma etching.