Systems and methods are provided for detecting and correcting address errors in a memory system. The sensor includes nanowire sensor elements having a biological recognition element attached to a nanowire transducer that specifically binds to the cardiac marker being measured. The apparatus includes a compensation loop filter for generating a first output in response to a frequency offset compensation, an adder for adding the estimated frequency offset and the first output to generate a second output, and a loop filter for generating frequency offset compensation according to the second output. The delivery movement of the driven device is effected with the drive device, the drive device and the driven device being coupled. The change of capacitance is proportional to a load and therefore is an indication of the strain. One exemplary fan unit includes a housing supporting a motor.