A DC compensation circuit restores the frequency spectrum of an input signal at DC by removing or reducing DC offset, 1f noise, or any other unwanted noise at or near 0 Hz. The computer is made to replace a load instruction at a particular location in a computer program instruction sequence with two instructions, an advanced load instruction and a load check instruction. 02 cubic meters total reactor volume. The number of the pulses corresponds to the number of revolution of the motor. The gate corresponds to the channel region.