17results about How to "Performance impact" patented technology

This invention provides a fast frequency closed-loop control method and system for an alkali metal atomic magnetometer laser, comprising: setting the laser current and laser temperature, calculating and obtaining the laser frequency closed-loop control signal SigX; and controlling the laser frequency based on the offset value of the frequency closed-loop control signal SigX and the correlation function f(I) = φ(I, SigX) between the current value and SigX. X The process involves calculating and obtaining the current adjustment value ΔI0, which is then directly applied to the laser current. The difference between the current adjustment value I1 and the set value I0 is calculated as ΔI1. Based on the correlation function f = φ(f(I), f(T)), the temperature change ΔT1 corresponding to the current change ΔI1 is calculated. This temperature adjustment ΔT1 is then applied to the laser temperature. By adjusting the laser temperature to T1, the laser current value is changed back from the adjustment value I1 to the initial set value I0. This invention addresses the problem in existing technologies where using laser current as a feedback signal for closed-loop control of laser frequency easily affects the laser's performance and consequently its lifespan.

The application provides a display panel and a display device. The display panel comprises: a substrate having a display area and a non-display area, the non-display area comprising a binding area located away from the display area; a protective adhesive layer arranged in the non-display area and covering at least the binding area; a polarizer located at least in the display area and extending at least to the edge of the protective adhesive layer; a first barrier structure arranged in the non-display area and located between the protective adhesive layer and the polarizer; and the polarizer covering at least part of the first barrier structure. The display panel can avoid forming a water vapor invasion path at the edge of the polarizer, effectively prevent water vapor penetration, and significantly improve the reliability and service life of the display panel.

The utility model relates to wire twisting mould technical field, concretely relates to high -precision very thin tungsten wire cable wire twisting mould structure, including support seat, the top fixed mounting of support seat has the water storage tank, the outside fixed mounting of water storage tank has the cooling mechanism, the top fixed mounting of water storage tank has the cooling plate, the inside installation of cooling plate has multiple groups installation mould cover, the inside fixed connection of multiple groups installation mould cover all has tungsten steel inner mould, the cooling mechanism includes the cooling box fixed mounting in the outside of water storage tank, the back of cooling box is linked with the inside of water storage tank, the inside fixed connection of cooling box has multiple groups radiating fins, the utility model discloses through optimizing the wear resistance, thermal stability and low friction design of tungsten steel inner mould, combines high -efficient circulating cooling system, has realized high -precision very thin tungsten wire cable's high -efficient, low loss, high -precision wire production, has improved product pass rate significantly and has prolonged the mould life.

The application discloses a repairing method for a bulk SiC f / SiC ceramic matrix composite component, which mainly comprises the steps of machining pretreatment, fiber preform repairing, fiber line reinforcing and CVI deposition repairing. In the machining pretreatment step, the damaged material is cut into dovetail type protrusions, and the thickness of the part is slightly reduced to leave space for fiber line winding. In the fiber preform repairing step, ceramic fibers are woven into a preform with the same thickness as the dovetail type protrusions in the form of 2.5D, an internal groove matched with the preform is processed, and the preform is spliced with the material to be repaired in the form of a mortise and tenon structure. In the fiber line reinforcing step, SiC fiber lines are cross-wound in perpendicular directions to reinforce the mortise and tenon connection part. In the CVI deposition repairing step, the fiber preform and the fiber lines are deposited by means of a CVI process, so that they become SiC f / SiC ceramic matrix composite, which is closely connected with the damaged part by the cooperation of the dovetail type part, the cross-winding of the fiber lines and the mortise and tenon structure, so that the damaged material is repaired.

This invention discloses a data integrity verification and tamper location method for autonomous vehicles, comprising the following steps: S1: Watermark embedding: Obtaining raw LiDAR point cloud data from a LiDAR sensor, and embedding a preset binary watermark sequence into the raw LiDAR point cloud data based on a three-dimensional quantization index modulation method to generate watermarked LiDAR point cloud data; S2: Data transmission: Transmitting the watermarked LiDAR point cloud data to an advanced driver assistance system in the vehicle network; S3: Parallel processing; S4: Tampering determination and location: Based on the comparison results of the integrity verification process, determining whether the LiDAR point cloud data has been tampered with. If it is determined to have been tampered with, the tampered LiDAR point cloud data area is located based on the data point positions where the watermark information does not match. This invention can accurately locate tampering, controllable distortion, avoid decryption delays in encryption methods, meet the real-time requirements of autonomous driving, has broad application prospects, and is conducive to widespread application.

This invention discloses a method for preparing carbon fiber epoxy composite materials that combine high mechanical properties and a low coefficient of thermal expansion. Belonging to the field of composite materials, it addresses the technical challenge of simultaneously improving the mechanical properties and reducing the coefficient of thermal expansion of composite materials using existing carbon fiber processing methods. By non-covalently modifying carbon nanotubes with ionic liquids, unlike traditional covalent modification methods, the intrinsic strength of carbon nanotubes is preserved, constructing a multi-mechanism synergistic interface reinforcement system. This specifically addresses the key problems of traditional sizing agents having a single interfacial effect and hindered stress transmission. In this invention, flexible polyimide acts as a bridge at the interface, while rigid carbon nanotubes construct an effective armor on the fiber surface. The two form a rigid-flexible composite structure at the interface, which effectively alleviates interfacial stress concentration, significantly improves interfacial stress transmission efficiency, achieves uniform dispersion of external loads, and ultimately improves the mechanical properties of the carbon fiber epoxy composite material.

The application relates to a fuel cell anode water distributor and a fuel cell system, wherein the fuel cell anode water distributor comprises an upper shell and a lower shell, a plurality of water baffles are detachably connected to the upper shell and the lower shell respectively, the water baffles are arranged in an alternating manner at different heights between the upper shell and the lower shell, a water baffle is arranged between the upper shell and the lower shell, and a water leakage hole is arranged on the water baffle. The water distribution performance can be adjusted according to the power demand of the fuel cell system, the water distributor is suitable for fuel cell systems of various power levels, and the reliability, water distribution efficiency and adaptability of the system are improved.

This application provides a reinforcement learning method, device, storage medium, and computer program product for a robotic arm, relating to the field of reinforcement learning technology for robotic arms. It involves acquiring first multimodal observation information when the robotic arm autonomously performs interactive tasks in a real physical environment; acquiring second multimodal observation information when the robotic arm responds to remote control by a human in the real physical environment; and constructing empirical data based on the first and second multimodal observation information, and performing reinforcement learning on the robotic arm in the real physical environment based on the empirical data. Using this application can avoid performance degradation of the robotic arm model caused by differences in migration from the simulation environment to the real environment.

The application discloses a built-in treatment device charging combination and control method for a clothes treatment device, the built-in treatment device charging combination comprises a built-in treatment device with a containing cavity and a charging seat, first charging contacts of the built-in treatment device are arranged on the built-in treatment device and extend out of the containing cavity, and second charging contacts are correspondingly arranged on the charging seat; a magnetic body / magnetic attraction assembly is arranged on the built-in treatment device, and a magnetic attraction assembly / magnetic body is arranged on the charging seat; the magnetic body and the magnetic attraction assembly can be attracted to each other, the first charging contacts are in contact with the second charging contacts, and the built-in treatment device is charged. In the application, the first charging contacts are in stable contact with the second charging contacts through the mutual attraction of the magnetic attraction assembly and the magnetic body, the built-in treatment device is stably matched with the charging seat, the matching of the magnetic body and the magnetic attraction assembly can also play a positioning role, and the accurate butt joint of the first charging contacts and the second charging contacts is more easily realized.

The embodiment of the present application provides an endoscope connector and an endoscope, which comprise an insulating shell and a plurality of electric contact pins. The insulating shell comprises an insulating base. The insulating base has a mating surface and a mounting surface which are opposite to each other along a mating direction. The mounting surface is provided with a glue groove which is recessed inward. The plurality of electric contact pins are fixed to the insulating base and located in the glue groove, and the electric contact pins comprise contact ends and connecting ends located at two ends. The contact ends extend to the mating surface and are exposed to the mating surface; the connecting ends extend to the outside of the mounting surface, and the insulating base is injection molded on the plurality of electric contact pins. The glue groove is filled with sealing glue, and the thickness of the sealing glue is not more than the depth of the glue groove. The insulating base is injection molded around the electric contact pins, so that the electric contact pins are tightly combined with the insulating base, the precision of all the electric contact pins on the endoscope connector is high, and the consistency is good. The waterproofness, heat resistance and chemical resistance of the components are ensured by arranging the glue groove on the mounting surface and filling the sealing glue.

The utility model discloses a tunnel lining vault belt mould grouting device, including the car body, pulp preparation mechanism, grouting mechanism, the car body horizontal setting, pulp preparation mechanism includes storage subassembly, mixing subassembly, first stirring subassembly, second stirring subassembly, variable speed component, the storage subassembly is located at the right side of car body top, and its lateral wall is fixedly connected with the car body, the mixing subassembly is located above storage subassembly, and its lateral wall is fixedly connected with storage subassembly, and the bottom surface is open with storage subassembly, first stirring subassembly is located in storage subassembly, second stirring subassembly is located in mixing subassembly, and its top is connected with first stirring subassembly through variable speed component, and grouting mechanism is located at the left side of car body top, and is connected with mixing subassembly pipeline, the utility model discloses can realize the quick pulp preparation of while, avoids the influence to the slurry performance of storage.

The adjustable multi-aperture laser communication receiving system belongs to the technical field of visible light communication, in order to solve the problems existing in the prior art, the system comprises a plurality of receiving telescopes corresponding to a plurality of motors respectively arranged in a receiving telescope array, the plurality of motors are connected to a connecting rod, a plurality of narrowband optical filters are respectively arranged at the exit ends of the plurality of receiving telescopes, and the target surfaces of a plurality of photodetectors are respectively located at the focal plane positions of the plurality of receiving telescopes; the plurality of photodetectors are connected with a merging circuit module, the merging circuit module is connected with a digital-to-analog conversion module, the digital-to-analog conversion module is connected with a demodulation module, and the demodulation module is connected with a host computer; the host computer is connected with a controller and a radar respectively, and the controller is connected with the plurality of motors; the host computer drives the plurality of motors to change the relative position, the pitch angle and the left-right angle of each receiving telescope and the connecting rod through the controller. When the laser communication across the air-sea interface is carried out, the communication performance of the receiving system is improved.

This invention relates to a catalyst, its preparation method, and a treatment apparatus and method for cyanide-containing wastewater. The catalyst preparation steps include: mixing a source M, carbon materials, and a hard template agent, followed by drying to obtain a precursor; the precursor is then subjected to microwave pretreatment, pyrolysis, and acid washing to obtain the catalyst; the source M includes organometallic framework compounds containing M and / or organometallic complexes containing M; M includes any one or a combination of at least two of cobalt, iron, copper, or manganese; the hard template agent includes magnesium chloride, calcium carbonate, or silicon dioxide. The catalyst provided by this invention can achieve single-atom dispersion of M. When used in the treatment of cyanide-containing wastewater, it can synergistically work with anaerobic ammonia oxidation to achieve efficient denitrification, and the treatment method can form a closed loop of pollutant self-disposal through "waste-to-waste" treatment.

This invention belongs to the field of polymer materials technology, specifically relating to a method for preparing bio-based polyester polyols and their application in polyurethane materials. The invention first involves an esterification reaction between a bio-based diacid and a bio-based diol under the action of a bio-enzyme catalyst, generating polyester oligomers and water. Then, TiO2@porous starch catalyst is added, and the reaction is further carried out by heating. The remaining diacid and diol are further esterified to form longer-chain polyester molecules. After the main esterification reaction is completed, 1,4-butanediol and pentaerythritol allyl ether are added to react with the carboxyl or hydroxyl groups on the polyester molecular chains, causing further chain growth. Finally, utilizing the special properties of supercritical CO2, small molecule impurities and residual catalysts in the reaction products are extracted. The large-molecule polyester polyol is separated by ultrafiltration membrane. The adsorption of activated carbon and molecular sieves further removes small molecule impurities and residual catalysts, yielding high-purity bio-based polyester polyols.

The utility model relates to the technical field of circuit board, concretely relates to a multilayer circuit board capable of preventing circuit board displacement, including frame main part, both sides of the top of frame main part are all seted up with side groove, the top of frame main part is provided with the limiting component, the limiting component includes screw rod, rudder and the card set structure of setting in the middle part of screw rod, and the transmission fixed one end of screw rod, screw rod sets up in the outside of side groove, and the card set structure includes upper swing arm, lower swing arm and the sleeve shaft of setting between the two, and the tail end of upper swing arm and lower swing arm all are fixed with the pin shaft, the bottom of pin shaft all is fixedly connected with the top of clamping block, the rudder drive screw rod rotates, utilize the opposite screw thread of the clamping block in the tail end of upper swing arm and lower swing arm, make two groups of clamping block along side groove relative or face each other and move, can tightly hold multilayer circuit board of different size, effectively avoid the displacement of circuit board in the process of use because of vibration, external force etc, guarantee the stability of circuit connection.