A circuit includes, in part, a multitude of magnetic random access memory cells, one or more column decoders, one or more row decoders, and a write driver circuit. A flow sleeve circumferentially surrounds the combustion chamber, and a plurality of fuel injectors are circumferentially arranged around the flow sleeve to provide fluid communication through the flow sleeve to the combustion chamber. The invention allows a decrease of the real dimensions of the accelerator structure, increase of the electromagnetic compatibility level, technology and user safety, and a simplification of structure. The histogram for each patch is then optionally averaged with the histograms associated with a prescribed number of neighboring image patches. One or more methods for operating memory cells includes determining age information for a portion of the memory cells and communicating a command set for the portion of the memory cells, the command set including the age information. The electrical connection shifting device is electrically connected with the PZT element for shifting an electrical connection position of the micro-actuator with a suspension of the HGA from the PZT element to the connection plate.