Coded data are inputted from a stream analyzing unit to an entropy decoding unit. In particular embodiments, and as but a few of the many possible design features, positioner actuators may be fluidicly linked in parallel and with the fluid compressor, the positioner actuators may each include a piston; and a plurality of positioners may each be responsive to at least one of the pistons. Thereafter or alternatively, an inert gas flow is established and maintained within the enclosure during operation of the laser. , alone or in association with extracts from other plants. The controller may also be configured to adjust the injector according to at least the first amount.