Abstract: A remote direct memory access (RDMA) data transmission system includes a first network device in a first host and a second network device in a second host. The first network device may create a shared send queue (SSQ) used by a plurality of processes run by the first host, obtain an RDMA data transmission message of a first process from the SSQ, and encapsulate a first identifier corresponding to the first process into a first packet in which the RDMA data transmission message is encapsulated. The second network device is configured to encapsulate the first identifier into a second packet in which a feedback message is encapsulated.

Abstract: A method, device, and system for controlling a data read/write command in an NVMe over fabric architecture. In the method provided in the embodiments of the present disclosure, a data processing unit receives a control command sent by a control device, the data processing unit divides a storage space of a buffer unit into at least two storage spaces according to the control command sent by the control device, and establishes a correspondence between the at least two storage spaces and command queues, and after receiving a first data read/write command that is in a first command queue and that is sent by the control device, the data processing unit buffers, in a storage space that is of the buffer unit and that is corresponding to the first command queue, data to be transmitted according to the first data read/write command.

Abstract: The present invention discloses a copper-zinc-aluminum-iron single crystal alloy material having an ultra-large grain structure of 5-50 cm grade, obtained by annealing an as-cast alloy having a polycrystalline structure through a single phase region of 800-960° C. for 2-105 h, where the as-cast alloy includes, by weight percentage, 62-82% of copper, 6-29% of zinc, 5-12% of aluminum, and 2-5% of iron. In the present invention, the alloy compositions have an essential difference and are a copper-zinc-aluminum-iron quaternary alloy, and the iron element is an indispensable alloying element. The preparation process of the present invention is extremely simple and very easy to implement and has a very good application prospect.

Abstract: A magnetic drive medical handpiece includes a handpiece housing (1), and a magnetic power output assembly (20) and a magnetic power input assembly (30), where the magnetic power output assembly (20) is configured to be in connected transmission with a cutting tool, the magnetic power input assembly (30) is in transmission fit with a power apparatus and is configured to drive, by using magnetic force, the magnetic power output assembly (20) to rotate, and a separation member (2) configured to form an axial static seal is disposed between the magnetic power output assembly (20) and the magnetic power input assembly (30).

Abstract: A control device for a non-volatile memory express (NVMe) over fabric architecture is provided. The control device comprises a network adapter and a processor coupled to the network adapter by a bus. Data is transmitted between the control device and a storage device in the NVMe over fabric architecture. The processor is configured to obtain an available storage space of the storage device, determine whether a storage space required by a first data to be transmitted according to a first data read/write command is equal to or less than the available storage space, and send the first data read/write command to the storage device if the storage space required by the first data is equal or less than to the available storage space and suspend sending of the first data read/write command if the storage space occupied by the first data is greater than the available storage space.

Abstract: A magnetic drive medical handpiece includes a handpiece housing (1), and a magnetic power output assembly (20) and a magnetic power input assembly (30), where the magnetic power output assembly (20) is configured to be in connected transmission with a cutting tool, the magnetic power input assembly (30) is in transmission fit with a power apparatus and is configured to drive, by using magnetic force, the magnetic power output assembly (20) to rotate, and a separation member (2) configured to form an axial static seal is disposed between the magnetic power output assembly (20) and the magnetic power input assembly (30).

Abstract: The present invention discloses a copper-zinc-aluminum-iron single crystal alloy material having an ultra-large grain structure of 5-50 cm grade, obtained by annealing an as-cast alloy having a polycrystalline structure through a single phase region of 800-960° C. for 2-105 h, where the as-cast alloy includes, by weight percentage, 62-82% of copper, 6-29% of zinc, 5-12% of aluminum, and 2-5% of iron. In the present invention, the alloy compositions have an essential difference and are a copper-zinc-aluminum-iron quaternary alloy, and the iron element is an indispensable alloying element. The preparation process of the present invention is extremely simple and very easy to implement and has a very good application prospect.

Abstract: A rotary cutting tool includes an outer cutter provided with a sampling groove at the front end, and an inner cutter sleeved inside the outer cutter; the cutting tool also comprises a rotating driven member slidably engaged with the inner cutter in the circumferential transmission axial direction and a translational driven member fitted to the inner cutter by means of a lead screw structure; a handle comprises a handle body and a drive component mounted on the handle body, the drive component comprising a rotating active member used for driving the rotation of the rotating driven member and a translational active member used for driving the translational driven member; the rotating driven member drives the rotation of the inner cutter and forms a rotating speed differential with the translational driven member, the rotating speed differential driving the inner cutter to move axially and thereby implement sampling of the sampling groove.

Abstract: A resource management method and apparatus are disclosed, providing monitoring, by a resource management apparatus, resource utilization of a first queue in the at least one input/output (I/O) queue pair. The resource utilization of the first queue is used to identify utilization of storage space allocated to the first queue, and the first queue includes any submission queue or any completion queue in the at least one I/O queue pair. Upon detecting that the resource utilization of the first queue satisfies a preset condition, the storage space occupied by the first queue is released.

Abstract: The present disclosure provides a heating assembly arranged below a carrier plate, including a first heating unit and a second heating unit arranged up and down; wherein the first heating unit includes a plurality of first heating elements arranged in parallel, the second heating unit includes a plurality of second heating elements arranged in parallel; the arrangement direction of the first heating elements is perpendicular to the arrangement direction of the second heating elements, and the projections of the first heating elements and the second heating elements on a heating surface of the carrier plate constitute several annular heating zones. The heating assembly is simple in structure and rational in design. The heating surface of the carrier plate is divided into a plurality of annular zones, which effectively improves the uniformity of heating temperature distribution and process results.

Abstract: A method, device, and system for controlling a data read/write command in an NVMe over fabric architecture. In the method provided in the embodiments of the present disclosure, a data processing unit receives a control command sent by a control device, the data processing unit divides a storage space of a buffer unit into at least two storage spaces according to the control command sent by the control device, and establishes a correspondence between the at least two storage spaces and command queues, and after receiving a first data read/write command that is in a first command queue and that is sent by the control device, the data processing unit buffers, in a storage space that is of the buffer unit and that is corresponding to the first command queue, data to be transmitted according to the first data read/write command.

Abstract: The present invention discloses a lateral grinding drill with continuously variable angle, including a tube body component and a grinding head arranged at the front end of the tube body component, the grinding head being configured to be driven to pitch and rotate on its own axis, the tail end of the grinding head is articulated to the inner tube body along the circumferential direction in a form of transmission, and a flexible transmission part is arranged at least on the front end of the inner tube body, which is configured to be articulated to the tail end of the grinding head and be able to transmit torque. The present invention adopts a direct articulated structure to transmit the transmission between the inner tube body and the grinding head, and can implement pitching motion. A flexible transmission structure is used to compensate the axis deviation caused by the pitching and driving.

Abstract: A data read/write command control method and system, and a device in an NVMe over Fabric architecture. According to the method provided in the embodiments of the present disclosure, a data processing unit allocates a first storage space from an available storage space of the cache unit according to a length, carried in the data read/write command, of the data that needs to be transmitted, where the first storage space is less than a storage space of the cache unit, and a first length is less than the length of the data that needs to be transmitted; and sequentially migrates the data that needs to be transmitted according to the data read/write command to a storage space corresponding to a destination address.

Abstract: A control device for a non-volatile memory express (NVMe) over fabric architecture is provided. The control device comprises a network adapter and a processor coupled to the network adapter by a bus. Data is transmitted between the control device and a storage device in the NVMe over fabric architecture. The processor is configured to obtain an available storage space of the storage device, determine whether a storage space required by a first data to be transmitted according to a first data read/write command is equal to or less than the available storage space, and send the first data read/write command to the storage device if the storage space required by the first data is equal or less than to the available storage space and suspend sending of the first data read/write command if the storage space occupied by the first data is greater than the available storage space.

Abstract: The present invention discloses a lateral grinding drill with continuously variable angle, including a tube body component and a grinding head arranged at the front end of the tube body component, the grinding head being configured to be driven to pitch and rotate on its own axis, the tail end of the grinding head is articulated to the inner tube body along the circumferential direction in a form of transmission, and a flexible transmission part is arranged at least on the front end of the inner tube body, which is configured to be articulated to the tail end of the grinding head and be able to transmit torque. The present invention adopts a direct articulated structure to transmit the transmission between the inner tube body and the grinding head, and can implement pitching motion. A flexible transmission structure is used to compensate the axis deviation caused by the pitching and driving.