A smoothing circuit for realizing the miniaturization and the increase of integration scale of a circuit and for easily varying attack time and release time. The method may receive seismic data, preferably pre-stack seismic data comprising a plurality of traces, e. The second device is configured to receive the discover message from the first device and determine whether to switch the first device to a second upstream channel based on the capabilities information in the discover message. dewatering said CCA wet cake composition to form: a dewatered CCA wet cake composition having a second liquid level that is lower than the first liquid level or having no liquid level; and a second mother liquor stream; andC. The refrigerator prevents users sustaining injuries from inadvertently bumping into a dispenser or a tray when passing by the refrigerator. When air is exhaled into the proximal opening, the exhaled air passes through the internal passageway and builds pressure behind the projectile such that the projectile is forcefully ejectable from the distal opening.