8results about How to "Reduce recovery" patented technology

The invention discloses a medium and low voltage power distribution network fault recovery method based on a BWO algorithm, and the method comprises the steps: S101, obtaining a target power distribution network data set, and constructing a distributed power supply and load system model; s102, carrying out preliminary island division by taking the minimum important load loss after the fault as a target; s103, solving is carried out according to a BWO optimization algorithm, and the population is continuously iterated and updated until the number of iterations is reached or a termination condition is met; and S104, carrying out fault recovery according to a solving result.

The invention discloses a flotation method, particularly discloses a flotation method for vanadium titano-magnetite ilmenite, and belongs to the technical field of mineral separation processes in metallurgical production. The flotation method for the vanadium titano-magnetite ilmenite can effectively improve the titanium concentrate recovery rate and the titanium concentrate grade and reduce the reagent use cost. The flotation method comprises ilmenite direct flotation, and according to the flotation method, titanium concentrate obtained through ilmenite direct flotation serves as a working object to be sequentially subjected to at least one time of rotational flow classification desliming and at least one time of rotational flow concentration desliming. And finally, ilmenite direct flotation is conducted on the coarse grain part in the fine-grain low-grade titanium concentrate obtained through rotational flow concentration and desliming, fine-grain high-grade titanium concentrate is obtained, and beneficiation work of flotation of the titanium concentrate is completed, the working object of the rotational flow concentration desliming is the fine-fraction gangue-containing mineral overproof low-grade titanium concentrate discharged by the rotational flow classification equipment in an overflowing manner during each rotational flow classification desliming.

Embodiments of the present invention provide a power semiconductor device, a related circuit, a chip, an electronic device, and a preparation method. The semiconductor device optimizes a front structure of a diode region, and reduces carrier concentration in the diode region by reducing a thickness of a semiconductor layer used as a positive electrode region or a negative electrode region in the region. In this way, a reverse recovery charge amount is reduced, a reverse recovery loss Err of a diode is reduced, and switching efficiency of an RC-IGBT is finally improved.

The invention discloses an anti-alkylation reaction process capable of reducing energy consumption of a benzene tower, which comprises the following steps: in an anti-alkylation reaction system, diisopropylbenzene and triisopropylbenzene generated in an alkylation reactor are subjected to an anti-alkylation reaction with benzene in the anti-alkylation reactor to generate isopropylbenzene, and the feeding weight ratio of the benzene to polyisopropylbenzene introduced into the anti-alkylation reactor is adjusted to 1.14: 1-1.18: 1; benzene and polyisopropylbenzene form a mixed solution, the mixed solution in the anti-alkylation reactor is heated to 179-181 DEG C, the back pressure of an outlet of the anti-alkylation reactor is controlled to be 2.0 MPa, and the weight ratio of benzene in an outlet material of the anti-alkylation reactor is controlled to be 35-38%. According to the anti-alkylation reaction process disclosed by the invention, the energy consumption of the benzene tower can be greatly reduced; meanwhile, the extraction of heavy aromatics is also reduced.

The invention discloses an automatic material receiving frame for numerical control machining production, and relates to the technical field of numerical control machining, the automatic material receiving frame comprises a fixing frame, a console is fixedly mounted in the fixing frame, a driving material receiving mechanism is arranged on the surface of the fixing frame, and the material receiving mechanism comprises a driving motor and a driving roller; the driving motor fixedly penetrates through the inner wall and the outer wall of the fixing frame, the driving roller is fixedly installed at the output end of the driving motor, a winding drum is arranged on the circumferential face of the driving roller, a loading plate fixedly penetrates through the inner wall and the outer wall of the fixing frame, a transmission roller is rotatably installed on the inner wall of the loading plate, and a sliding groove is formed in the surface of the loading plate. A clamping groove is formed in the inner wall of the loading plate, the rolling wheel is used for correcting the material-strip-shaped product in the rolling process, abrasion generated in the contact process is effectively reduced, it can be guaranteed that the material-strip-shaped product keeps moving linearly, and the material-strip-shaped product is prevented from deviating in the moving process.

Provided in the present invention is a super-junction MOSFET device, the device comprising a plurality of cellular structures. Each of the cellular structures comprises a drain terminal electrode, an N-type drain electrode layer, an N-type buffer layer, an N-type field stop region, a first P-type body region, a second P-type body region, a first P pillar, a second P pillar, an N pillar, a first N-type source region, a second N-type source region, a first P-type body contact region, a second P-type body contact region, a gate structure and a source terminal electrode, wherein the N-type field stop region is located in the N-type buffer layer; the vertical projection of the N-type field stop region on the N-type drain electrode layer is provided with a spacing region; and the doping concentration of the N-type field stop region is higher than the doping concentration of the N-type buffer layer. In the present invention, the N-type field stop region is introduced into the N-type buffer layer, and the vertical projection of the N-type field stop region on the N-type drain electrode layer is provided with the spacing region, such that not only can reverse recovery charges be reduced and a reverse recovery softness factor be improved, but the on-resistance of a device can also be reduced without increasing the leakage current of the device.

The invention provides a loudspeaker system and electronic equipment, and the loudspeaker system comprises a first housing which is internally provided with a first accommodation cavity; the first active vibrating diaphragm is arranged in the first accommodating cavity; the second shell is internally provided with a second accommodating cavity, and the second accommodating cavity is communicated with the first accommodating cavity to form a closed cavity; the first passive vibrating diaphragm is arranged on one side of the second shell and is driven by the first active vibrating diaphragm to vibrate; the at least one second passive vibrating diaphragm is arranged on one side, opposite to the first passive vibrating diaphragm, of the second shell, and the oscillation starting directions of the second passive vibrating diaphragm and the first passive vibrating diaphragm are opposite; and / or, the second passive vibrating diaphragm and the first passive vibrating diaphragm are arranged on the same side of the second shell, and the oscillation starting directions of the second passive vibrating diaphragm and the first passive vibrating diaphragm are the same. The displacement distance of the first passive diaphragm can be reduced, the low-frequency vibration sense of the loudspeaker system is weakened, and the low-frequency performance of the loudspeaker system is improved.

This invention belongs to the field of multi-live-room synchronous live streaming technology, specifically involving a method for multi-live-room synchronous live streaming based on AI digital humans. The method includes: deploying a system template; constructing audience profiles and script templates; rendering seeds and initializing a lightweight ledger; performing edge deterministic rendering during live streaming; employing distributed ledger recording and local perception optimization; performing playback verification based on the ledger and frame records; quantifying business effects and conducting offline training. This invention can reduce the cross-node consistency of visual and audio-visual aspects of digital humans in multiple live-streaming rooms, thereby reducing the perceptual latency on the viewing end and improving the real-time viewing experience for the audience.