Abstract: Techniques are disclosed for managing states at a networking device configured to track connections or bidirectional flows of a communication session in a software defined network (SDN). The networking device has an active processing engine and a passive processing engine. The connection record for an idle connection is maintained in the connection table stored at the passive processing engine, thereby allowing the passive processing engine to maintain connection state information for the idle connection and avoid storing connection state information for the idle connection at the active processing engine.

Abstract: Disclosed is a data center comprising a first row of equipment racks, a second row of equipment racks, a hot aisle defined by a space between the first row of equipment racks and the second row of equipment racks, and a track system above the hot aisle of the data center upon which cooling units may be mounted. Cooling units may be moved along the track system. The track system may include portions of track secured to the top sides of one or more cooling units. Also disclosed is a method for installing a cooling unit above a hot aisle of a data center including a plurality of equipment racks.

Abstract: Disclosed is an air containment cooling system for containing air between two rows of equipment racks. The air containment cooling system comprises a canopy assembly configured to enclose a hot aisle defined by two rows of equipment racks and a cooling system embedded within the canopy assembly, the cooling system being configured to cool air disposed within the hot aisle, the cooling system including a heat exchanger, a mounting plate coupled to the canopy assembly, and a fan assembly configured to move air to the heat exchanger, the fan assembly being releasably mounted on the mounting plate. The fan assembly may include a fan unit having a fan and a motor and a mounting ring configured to mount the fan unit thereon. The mounting ring may have at least one mounting post configured to pass through a key slot formed in the mounting plate.

Abstract: Disclosed is a data center comprising a first row of equipment racks, a second row of equipment racks, a hot aisle defined by a space between the first row of equipment racks and the second row of equipment racks, and a track system above the hot aisle of the data center upon which cooling units may be mounted. Cooling units may be moved along the track system. The track system may include portions of track secured to the top sides of one or more cooling units. Also disclosed is a method for installing a cooling unit above a hot aisle of a data center including a plurality of equipment racks.

Abstract: Disclosed is a data center comprising a first row of equipment racks, a second row of equipment racks, a hot aisle defined by a space between the first row of equipment racks and the second row of equipment racks, and a track system above the hot aisle of the data center upon which cooling units may be mounted. Cooling units may be moved along the track system. The track system may include portions of track secured to the top sides of one or more cooling units. Also disclosed is a method for installing a cooling unit above a hot aisle of a data center including a plurality of equipment racks.

Abstract: Disclosed is a data center comprising a first row of equipment racks, a second row of equipment racks, a hot aisle defined by a space between the first row of equipment racks and the second row of equipment racks, and a track system above the hot aisle of the data center upon which cooling units may be mounted. Cooling units may be moved along the track system. The track system may include portions of track secured to the top sides of one or more cooling units. Also disclosed is a method for installing a cooling unit above a hot aisle of a data center including a plurality of equipment racks.

Abstract: Disclosed is an air containment cooling system for containing air between two rows of equipment racks. The air containment cooling system comprises a canopy assembly configured to enclose a hot aisle defined by two rows of equipment racks and a cooling system embedded within the canopy assembly, the cooling system being configured to cool air disposed within the hot aisle, the cooling system including a heat exchanger, a mounting plate coupled to the canopy assembly, and a fan assembly configured to move air to the heat exchanger, the fan assembly being releasably mounted on the mounting plate. The fan assembly may include a fan unit having a fan and a motor and a mounting ring configured to mount the fan unit thereon. The mounting ring may have at least one mounting post configured to pass through a key slot formed in the mounting plate.

Abstract: A dental applicator of the present invention is provided for applying a dental compound to a tooth surface. The applicator includes an applicator body having a handle and a neck extending forwardly from the handle. The neck has a forwardly facing socket or socket is formed at the end of the neck to receive an absorbent sponge. The sponge is slidingly received in the socket so that its position in the socket can be selectively changed. The sponge, when prepared for insertion into the socket, has an overall cross-sectional dimension greater than the diameter of the socket. The sponge thus has to be compressed when it is inserted in the socket. Thus, when the sponge is inserted in the socket, the sponge forms an enlarged, ball-shaped or bulbous tip. By selectively altering the amount the sponge extends from the end of the neck, the enlarged sponge tip can be made larger or smaller, to hold larger or smaller amounts of liquid.