Inserting images into documents. FluidiZed particles can report directly to the secondary troughs without travelling across the surface of the cell, reducing the incidence configurations with radial secondary troughs and external andor internal primary troughs are also described. The power supply device further includes an instantaneous voltage drop compensation function whereby the energy of the smoothing capacitor is supplied by an operation of the step-up chopper to the inverter when there is an instantaneous voltage drop in an alternating current power supply voltage. While delivery of the pacing signals to the atrium is inhibited, the detected arrhythmia of the atrium is confirmed during a period of further evaluation.