Abstract: An approach is provided for optimizing multi-datasource queries in a networked computing environment. A procedure that contains a set of queries designed to access a specific set of data from a plurality of datasources in a virtualized hybrid storage environment (e.g., a virtualized hybrid cloud) is obtained. A set of mapped store procedures is created for the set of datasources referenced in the procedure. Each mapped store procedure includes a subset of queries that are applicable to a corresponding datasource from the set of queries in the procedure. These mapped store procedures are forwarded to the corresponding datasource for storage on the corresponding datasource. In response to a running of the procedure, execution of the mapped store procedure is commenced on each of the corresponding datasources on which they are stored.

Abstract: A server includes a server module and an expansion module, the server module includes a first tray provided with a first connecting mechanism, a first circuit board mounted on the first tray, and a top cover covered on the first tray for enclosing the first circuit board between the first tray and the top cover; the expansion module includes a second tray provided with a second connecting mechanism matching with the first connecting mechanism and a second circuit board mounted on the second tray, the second circuit board is electrically connected to the first circuit board. A server system is also provided.

Abstract: A blank dummy structure adaptable for slide rails and absence of slide rails, the blank dummy structure includes a main plate, two buckles, two rotating members, and two fasteners. The buckle comprises a snap component, the snap component is connected with the main plate to slide between first and second positions on the main plate. The rotating member and the snap component are arranged on the same side of the main plate, the rotating member on the main plate, comprises a limiting component. the rotating member being rotatably connected with the main plate to rotate the rotating member between a limit position and an avoidance position. The fastener configured to cooperate with the rack when the rotating member is in the avoidance position. The buckle, the rotating member, and the fastener are mounted on the main plate. A rack is also disclosed.

Abstract: A heat pump system, a heat management method and a vehicle are provided. The heat pump system includes an integrated heat exchanger integrated with a superconducting liquid flow passage and a refrigerant flow passage. The refrigerant flow passage is provided inside an on-board refrigerant circulation loop and is used for cooling and/or heating to adjust the temperature within a passenger compartment of a vehicle. The superconducting liquid flow passage is in communication with a motor heat dissipating conduit, for absorbing the heat generated by an on board motor and transferring the heat to the integrated heat exchanger by means of phase change heat transfer. The heat pump system can increase the energy utilization rate for the vehicle and reduce the allowable ambient temperature of the heat pump system.

Abstract: A carrier assembly for installing a hard disk drive (HDD) rapidly without tools or screws or other fasteners disk includes a bracket and a carrier. The carrier is movably disposed within the bracket. The hard disk drive is disposed with the carrier. The bracket includes a side plate and a plurality of first protrusions arranged on the side plate along with electrical connectors. The side plate defines interconnecting slots, a vertical first slot and a horizontal second slot. The carrier includes a lateral plate, a rotating handle connected to the lateral plate, and second protrusions arranged on the lateral plate. When the rotating handle is manually rotated, the second protrusion becomes locked within the first slot or the second slot to fix the HDD in place.

Abstract: A stabilizing fixture to hold and stabilize a server contained within different sizes of server cabinets includes a base, a pressing component and an adjusting component. The pressing component is slidably coupled with the base in a first direction. A first pressing surface is defined on the pressing component for pressing a server. The adjusting component includes a screw and a nut. When the screw is rotated relative to the nut, the nut is driven to move in a second direction, and the nut acts on the pressing component to drive the pressing component in the first direction to press the server. As the pressing component moves along the first direction, the distance between the two pressing component changes to accommodate servers of different sizes.

Abstract: A carrier assembly for installing a hard disk drive (HDD) rapidly without tools or screws or other fasteners disk includes a bracket and a carrier. The carrier is movably disposed within the bracket. The hard disk drive is disposed with the carrier. The bracket includes a side plate and a plurality of first protrusions arranged on the side plate along with electrical connectors. The side plate defines interconnecting slots, a vertical first slot and a horizontal second slot. The carrier includes a lateral plate, a rotating handle connected to the lateral plate, and second protrusions arranged on the lateral plate. When the rotating handle is manually rotated, the second protrusion becomes locked within the first slot or the second slot to fix the HDD in place.

Abstract: A blank dummy structure adaptable for slide rails and absence of slide rails, the blank dummy structure includes a main plate, two buckles, two rotating members, and two fasteners. The buckle comprises a snap component, the snap component is connected with the main plate to slide between first and second positions on the main plate. The rotating member and the snap component are arranged on the same side of the main plate, the rotating member on the main plate, comprises a limiting component. the rotating member being rotatably connected with the main plate to rotate the rotating member between a limit position and an avoidance position. The fastener configured to cooperate with the rack when the rotating member is in the avoidance position. The buckle, the rotating member, and the fastener are mounted on the main plate. A rack is also disclosed.

Abstract: A heat pump system, a heat management method and a vehicle are provided. The heat pump system includes an integrated heat exchanger integrated with a superconducting liquid flow passage and a refrigerant flow passage. The refrigerant flow passage is provided inside an on-board refrigerant circulation loop and is used for cooling and/or heating to adjust the temperature within a passenger compartment of a vehicle. The superconducting liquid flow passage is in communication with a motor heat dissipating conduit, for absorbing the heat generated by an on board motor and transferring the heat to the integrated heat exchanger by means of phase change heat transfer. The heat pump system can increase the energy utilization rate for the vehicle and reduce the allowable ambient temperature of the heat pump system.