An apparatus and method for controlling stored jobs, in a system of networked MFPs, includes an MFP with a printer for printing stored jobs. In this case, a filling material is applied to a structure which, as a function of the aspect ratio of the structure, forms cavities when the aspect ratio is high. The electrode detects the electrical current in the muscle and transmits a signal representative of the electrical current to a signal processing device. In addition to the unique airflow control loop used to maintain the constant airflow into the room, the present invention also implements a digital form of proportional, integral, and derivative control to maintain the room temperature. Accordingly, a database system is provided which includes one or more persistent storage devices having a database stored thereon, and a plurality of database servers executing on a plurality of nodes.