Embodiments of the present invention provide for thresholding data elements. The electrodes also are connected to a stimulation circuit to deliver stimulation pulses to at least some of the sites. The inductor current increases at a ramp-up rate during a ramp time and stops increasing at the end of the ramp time. An uncertainty model of the peak height values is optimized and the parameters of the optimized uncertainty model are used to modify the theoretical distribution. The apron rack system includes at least one set of paired rungs projecting toward each other, attached to the at least two paired support arms, and providing an open space between the paired rungs through which a garment is hung from each of the paired rungs. A read-transistor providing access to the bit stored by the SRAM cell is coupled to the SRAM cell via a gate of the read transistor, thereby decoupling the stability of the SRAM cell from the read operation.