摘要:
A carrying device for a side-scan sonar, including a suspension rod, a hanging rack, and a flange. The side-scan sonar is in fixed connection to the lower part of the hanging rack. The suspension rod includes a suspension unit, a universal joint, and a tension rod. The flange is disposed below the lower part of the tension rod. The hanging rack includes a Z-shaped main cross beam. Two U-shaped hooks are disposed at two ends of the Z-shaped main cross beam for supporting the side-scan sonar. A vertical drag hook is disposed in the inner side of each of the two U-shaped hooks for hanging the side-scan sonar. The flange is fixed in the center of the Z-shaped main cross beam.
摘要:
A device for launching fireworks, the device includes: a plastic plug and a locking base. The plastic plug includes: a resistance heating wire, a slot for accommodating the resistance heating wire, two metal conductors, two plate-like electrodes, and an upper clamping structure. The locking base includes: a lower clamping structure, two spring electrodes, and a circuit connecting socket. The top of the plastic plug is provided with the slot for accommodating the resistance heating wire. The resistance heating wire is fixed in the slot for accommodating the resistance heating wire and two ends of the resistance heating wire are electronically connected with one ends of the two metal conductors. The other ends of the two metal conductors are respectively electronically connected with the two plate-like electrodes and fixed at a bottom of the plastic plug. The bottom of the plastic plug is provided with the upper clamping structure.
摘要:
A method for preparing a Nd—Fe—B-based sintered magnet. The method includes: 1) providing a master alloy and an auxiliary alloy, the master alloy being a Nd—Fe—B alloy ingot or cast strip, the auxiliary alloy being a heavy rare earth alloy; 2) breaking up the master alloy using a hydrogen decrepitation process to yield a crude powder, conducting hydrogen absorption treatment on the auxiliary alloy and breaking up the hydrogenated auxiliary alloy to yield hydride particles; 3) uniformly mixing and stirring the crude powder of the master alloy and the hydride particles of the auxiliary alloy to yield a mixture; 4) milling the mixture obtained in step 3) to yield powders; 5) uniformly stirring the powders obtained in step 4) and conducting orientation forming treatment on the powders, to yield a raw body of a Nd—Fe—B based magnet; and 6) sintering the raw body of the Nd—Fe—B based magnet.
摘要:
A surgical stapler, including: an anvil assembly, a reload assembly, a movable handle, a fixed handle, a transmission assembly, a propulsion assembly, a safety apparatus, and an anti-triggering device. The anti-triggering device includes two rows of holes and clamp strips. The transmission assembly is disposed inside the fixed handle. The clamp strips are arranged in longitudinal symmetry on one side of the anti-triggering device. A row of counterbores and a clamp plate having a structure matching with the clamp strip of the anti-triggering device are arranged at an inner side of the casing of the fixed handle. The safety apparatus is fixed at one side of the propulsion assembly. The anti-triggering device is clamped inside the casing of the fixed handle and is attached to a side surface of the safety apparatus.
摘要:
A method for asymmetrically scheduling buffer cache of disk array. The method including: (1) detecting whether access from a upper layer is hit in a buffer cache, proceeding to (7) if yes, and proceeding to (2) if no; (2) detecting whether the buffer cache is full, proceeding to (3) if yes, and proceeding to (5) if no; (3) detecting whether the number of pages of a sacrificial disk is greater than a threshold, proceeding to (4) if yes, and proceeding to (6) if no; (4) selecting and replacing a cold page of the sacrificial disk; (5) buffering data requested by a user in a blank page in the buffer cache; (6) selecting and replacing all cold pages of the buffer cache; and (7) reading or writing the data, and changing positions or status thereof in pages of the buffer cache.
摘要:
A motor controller, including: a control box including an inner wall; a circuit board; a dissipater; an IGBT module; and an insulating piece. The circuit board is disposed inside the controller box. The dissipater is disposed on the inner wall of the control box. The IGBT module is disposed on the dissipater and is in electric connection with the circuit board. The insulating piece is disposed between the dissipater and the controller and prevents the dissipater from contacting with the control box.
摘要:
A coupling bioreactor in the form of a tower type seal structure filled with a suspended carrier. A water inlet pipe, an air inlet pipe, and a first microporous aerator are arranged at the bottom of the coupling reactor. The water inlet pipe is connected to a water distributor. The air inlet pipe is connected to the first microporous aerator. A gas inlet pipe and a second microporous aerator are arranged at the middle part of the coupling bioreactor and are connected with each other. An annular overflow weir is arranged at the upper part of the coupling bioreactor and is connected to a water outlet pipe. A gas outlet pipe is arranged at the top of the coupling bioreactor. The ratio of the height to the diameter of the coupling bioreactor is between 3 and 10.