An oscillator device includes a Colpitts oscillation circuit using a bipolar transistor, which has a base that is connected to a resonator or a resonance circuit and a collector that is RF-grounded, and a buffer amplifier circuit using a grounded-base bipolar transistor or a grounded-gate FET. The method includes updating a portion of a plurality of variable nodes and performing a partial parity check based on the updated variable nodes. In aspects, the source data accepted into the modeling client can include consumer or business-level applications, whose spreadsheet, database or other content can be extracted and encapsulated in extensible markup language or other object-oriented format. Manifolds are associated with the outer and inner housings to provide for uniform flow of the gas through the material. The ratio of radius of the adaptive vane assembly to radius of the drum is between 0.