An imaging system includes a pixel that does not require a row select transistor. Suppressing a temperature of internal gas in the compressor when recirculating gas turbine exhaust gas at partial load operation time and then returning to the compressor so as to increase exhaust gas recirculation amount. The invention is also directed to pharmaceutical compositions and dosage forms that comprise therapeutically or prophylactically effective amounts of the compounds, optionally in combination with an additional pharmacologically active compound. This is advantageous as a volume velocity at the opening is essentially equal to a volume velocity at the second side of the membrane, apart from a minus sign. The bottle can be provided with a keying mechanism for engaging a corresponding key structure of the receptacle.