The system consisted of a fuel processor, an expander/compressor and the fuel cell stack. A Brayton-type engine consists of three components&colon; a compressor, a mixing chamber, and an expander. This process requires patients to turn the expansion screw themselves to widen the expander. This essentially involves expansion of the breast skin and muscle using a temporary tissue expander. The External keyboard was an add-on which plugged into the Sound Expander. I/O expander and keyboard controller, USB, and RS-232. They were generated on a modified ARP 2600 synthesizer with added Oberheim Expander Modules. Other expansion options are available including a bus expander which provides two Zorro-II slots. An expander increases the dynamic range of the audio signal. The same fitting can be used in reverse as an eccentric increaser/expander. It is also sometimes referred to as a spool, fleshy, earlet, expander, or eyelet. A noise gate is a type of expander. These are partly due to a construction of an expander graph. Use as a volume expander is not recommended. PVP was used as a plasma volume expander for trauma victims after the 1950s.