23results about How to "Pollution suppression" patented technology

The invention discloses an underwater target detection method based on differential attention. The method comprises the following steps: acquiring an underwater image to be detected; based on the underwater image data set, constructing a lightweight underwater target detection network model based on a differential attention mechanism; constructing a joint loss function, and performing end-to-end training on the lightweight underwater target detection network model to obtain a trained lightweight underwater target detection network model; performing mathematical equivalence fusion on the lightweight underwater target detection network model to generate a lightweight reasoning model; and inputting the obtained underwater image to be detected into the lightweight reasoning model to realize target detection of the underwater image. According to the method, a differential attention feature interaction mechanism is introduced, common-mode noise is stripped through differential calculation, and the detection precision and real-time performance of an underwater fuzzy scene and a tiny target are remarkably improved in combination with a feature pyramid network integrating dynamic scale perception and semantic gating.

This invention discloses a method for preparing fermented Chinese medicine wine, comprising the following steps: S1: Preparing brewing grains by weight, soaking, steaming, and treating with saccharifying enzymes to obtain saccharified grains; S2: Treating Chinese medicinal materials with compound enzymes to obtain enzymatically hydrolyzed Chinese medicinal materials; S3: Mixing the saccharified grains and enzymatically hydrolyzed Chinese medicinal materials, adding yeast for anaerobic fermentation to obtain fermented material; S4: Distilling and aging the fermented material to obtain fermented Chinese medicine wine. The advantages of this invention compared to existing technologies are: providing a method for preparing fermented Chinese medicine wine that achieves efficient release and full conversion of the effective components of Chinese medicinal materials, ensuring a mellow flavor and stable quality.

The application belongs to the technical field of robot environment perception and three-dimensional reconstruction, and discloses a quadruped robot multi-source information fusion mapping method and device based on factor graph optimization. The foot end odometer of the quadruped robot is introduced into the factor graph optimization framework as an independent constraint factor, and in the environment with missing or degenerated laser point cloud features, the motion constraint is provided, and the robustness of the system is fundamentally improved. An adaptive noise model based on the foot end contact state is designed, the confidence of the foot end odometer factor can be dynamically adjusted according to the contact quality, strong constraints are provided during normal walking, the weight is automatically reduced when slipping, and the pollution of the system caused by the false information is effectively inhibited. The tight coupling optimization of the laser radar, the IMU and the foot end kinematics information is realized, instead of loose coupling or post-fusion, so that the multi-source sensor information is deeply complementary at the state estimation level, and the overall estimation accuracy under complex terrain and dynamic motion is significantly improved.

The application provides a building fire-fighting early warning system and method, and belongs to the technical field of building fire-fighting safety. The application synchronously collects temperature, smoke concentration and carbon monoxide concentration data in each monitoring area of a building, calculates the deviation degree of sensor sliding window variance and baseline variance, evaluates the reliability index of each sensor in real time and generates adaptive fusion weight, simultaneously detects and isolates the fault sensor through time sequence deviation residual analysis, evaluates the consistency between sensors and generates a correction weight, relies on the dynamic update of the environment baseline based on the exponential weighted moving average, generates a graded early warning threshold for each area and triggers the corresponding response measures. The application effectively improves the robustness of the system under the condition of sensor failure, enhances the fusion accuracy in the multi-sensor conflict scene, realizes the early prediction of the fire spread situation, reduces the false alarm rate while maintaining a high fire detection sensitivity and a short detection response time.

The present application relates to atomization delivery device technical field, especially in pneumatic control's atomization guide device, including casing, liquid guide device, air pump, controller and injection mixing assembly, the casing is equipped with bottle mouth connection cavity, the bottle mouth connection cavity is used for with the bottle mouth of liquid storage bottle can be detached seal connection;The bottle mouth connection cavity is equipped with one-way air supplement valve, the one-way air supplement valve is communicated with the outside and the inside of the liquid storage bottle, in order to be supplemented to the liquid storage bottle air;The injection mixing assembly has gas inlet, suction inlet and mixing outlet, and includes the gas nozzle, throat and pressure recovery section that are communicated in turn, wherein, the gas inlet is communicated with the gas nozzle, the suction inlet is communicated with the low pressure area of the throat, and the mixing outlet is communicated with the pressure recovery section;Mixed gas-liquid two-phase mixed flow through the mixing outlet enters the liquid guide inlet and is atomized by the atomizing nozzle and is output, realizes the effect that spraying output is more continuous, atomization is more uniform.

The invention discloses a ceramic green surface bubble identification method based on machine vision, particularly relates to the field of image processing and surface defect detection, and is used for solving the problem of false detection caused by artifacts generated by bubble brightness overturning and mirror surface reflection of a green glaze surface under different illumination. A first illumination image and a second illumination image are collected, an alignment image group is established, local illumination normalization and peripheral texture compensation are executed to form a highlight texture removal image group, a symmetric residual image and an abnormal response are calculated to obtain a candidate region set, and the candidate region set establishes corresponding association in the alignment image group to obtain a highlight texture removal image group. Extracting a main reflection direction and calculating a slip normalization quantity of the main reflection direction and a slip normalization quantity of a vertical reflection direction, outputting bubble credibility through logistic regression, dividing a bubble region and a reflection artifact region, generating a bubble mask to update a reference texture, updating a highlight compensation model through the reflection artifact region, and performing consistency verification on a compensation result. And outputting a bubble recognition result.

This utility model discloses a silicon carbide substrate wafer annealing fixture, belonging to the field of semiconductor manufacturing equipment technology. The annealing barrel of this silicon carbide substrate wafer annealing fixture is formed by the joining of two symmetrically arranged annealing half-barrels. The side walls connecting the two annealing half-barrels are respectively provided with mutually cooperating protrusions and mating grooves for positioning and fitting, thus enclosing the two annealing half-barrels together to form a closed annealing cavity, the interior of which has a groove for supporting the silicon carbide wafer. A lifting shaft is connected to the annealing barrel through a fixing component, used to drive the closed annealing cavity to perform lifting and rotating movements. The lifting shaft drives the annealing barrel to perform lifting and rotating movements, significantly improving the heating uniformity of the wafer during high-temperature annealing. The dynamic adjustment function can alleviate thermal stress caused by differences in the thermal expansion coefficients of materials during heating and cooling, preventing wafer warping or cracking.

Provided is a surface protective film including an adhesive layer, the surface protective film exhibiting both excellent antistatic performance and suppression of contamination of an adherend. A surface protective film according to an embodiment of the present invention comprises an adhesive layer comprising a urethane-based adhesive comprising a urethane polymer, the urethane-based adhesive being formed from a urethane-based adhesive composition, the urethane-based adhesive composition contains a base polymer (A), a silicone-based compound (B), and an ionic compound (C), and has a glass plate surface resistance value of 5.0 * 1010 [Omega] or more.

The invention relates to the technical field of concrete recycling equipment, and discloses a bridge construction excess concrete recycling device which comprises a supporting frame, a crushing box is fixedly connected to the right side of the top of the supporting frame, a pre-crushing mechanism is arranged on the inner wall of the crushing box, and the pre-crushing mechanism is used for crushing large-particle substances of the excess concrete. A screen frame is rotatably connected to the right side of the inner wall of the supporting frame, a screening mechanism is arranged on the inner wall of the screen frame and used for screening impurities in concrete excess materials, a stirring box is fixedly connected to the right side of the inner wall of the supporting frame, and a spraying mechanism is arranged on the inner wall of the stirring box. A hydraulic cylinder drives a connecting rod and a connecting sleeve to move left and right, then an arc-shaped extrusion block is extruded, toothed plates are driven to move outwards along telescopic holes, the distance between every two adjacent toothed plates is adjusted, the device can adapt to crushing of concrete with different condensation degrees, the use range of the device is widened, and the service life of the device is prolonged.

The high-temperature-resistant brake pad material is prepared from the following raw materials in parts by weight: 18 to 22 parts of boron modified phenolic resin, 10 to 15 parts of modified carbon fiber, 4 to 7 parts of aramid fiber, 9 to 13 parts of ferrotitanium powder, 10 to 15 parts of potassium magnesium titanate lamellar crystal, 3 to 5 parts of nitrile rubber powder, 4 to 6 parts of natural graphite, 3 to 5 parts of petroleum coke, 5 to 8 parts of barite and 3 to 5 parts of aluminum oxide. According to the high-temperature-resistant brake pad material, boron-modified phenolic resin serves as a base body, functional components such as modified carbon fibers, aramid fibers, ferrotitanium powder and potassium magnesium titanate lamellar crystals are matched, and through the reasonable formula design and the forming technology, on the basis that it is guaranteed that a brake pad has the excellent friction and wear performance, the high-temperature-resistant brake pad material is obtained; the thermal stability and the interface bonding strength of the material under the high-temperature working condition are remarkably improved, and the problems that a traditional brake pad material is prone to heat fading and interface stripping under the high-temperature braking condition are solved.

The combine harvester includes: a harvesting device (H) for harvesting crops from the field; a conveying device (16) for conveying the crops harvested by the harvesting device (H); a threshing device (13) for threshing the crops supplied by the conveying device (16); and a sensing device (X) for sensing the situation of soil being acquired into the harvesting device (H).

A polyvinyl alcohol (PVA) film is provided that exhibits low leaching of PVA-based resin into water during polarization film manufacturing, suppressed contamination of the chemical bath during manufacturing, high productivity with few foreign defects, and excellent stretch processability during manufacturing. A PVA-based film is provided in which, on both surfaces of the PVA-based film, a region extending from the surface layer of each film surface to a depth of 1 μm satisfies the following formula (1), and the weight swelling degree is 185% or more and 210% or less. |K| ≥ 3.5 × 10 ‑5 ……(1). (Here, |K| is the absolute value of the ratio (slope) of the change in the magnitude of birefringence from the surface to a depth of 1μm.)

The utility model relates to a kind of phenolic wastewater treatment catalytic / filter coupling device, it relates to a kind of phenolic wastewater treatment device.The utility model is to solve the technical problems that the existing catalytic oxidation-membrane separation coupling process exists unit long, catalyst loss and membrane pollution.The utility model first couples sludge biochar catalytic oxidation and microfiltration membrane in same device, with integrated design significantly shorten process, reduce dead volume and energy consumption;Through the three-stage gradient interception structure of hierarchical aperture metal screen-PP cotton-microfiltration membrane, form the particle size barrier from bottom to top, synergistically inhibit the loss of sludge biochar and membrane pollution, so that sludge biochar maintains high activity in continuous operation, to ensure water quality while extending the stable operation period of system, provide new technical paradigm for the economic and efficient advanced treatment of phenol-containing wastewater.

The application discloses a sleep multi-parameter fusion modeling method based on sleep, relates to the technical field of sleep data processing, and is used for solving the problem of poor data fusion credibility; the sleep parameters of a wristband, a mattress and environment equipment are mapped to a unified time reference through time unification, adaptive time slices are generated based on a change indicator, pollution segments caused by missing data and link jitter are isolated, individualized parameter state descriptions are further mapped from the trend, fluctuation and periodic characteristics in each slice, parameter state units are constructed, co-occurrence, precedence and repulsion relationships are extracted based on a state association graph, state consistency constraints are generated by combining deep learning sequence modeling, constraint propagation and consistency determination are performed on candidate fusion states, a continuous and interpretable fusion state result is output, a prediction window residual anomaly detection backtracking correction is introduced, and the constraints and the model are adaptively updated according to updated sample entries, so that the stability of the fusion result is improved.

A positive electrode active material precursor for a lithium secondary battery according to an embodiment of the present invention may comprise: a first positive electrode active material precursor particle comprising a core part and a shell part, the core part and the shell part comprising a transition metal containing nickel; and a second positive electrode active material precursor particle containing a transition metal containing nickel. In the transition metal of the second positive electrode active material precursor particles, the molar fraction of nickel can be kept constant throughout the second positive electrode active material precursor particles. The average particle diameter (D50) of the core parts of the first positive electrode active material precursor particles may be larger than the average particle diameter (D50) of the second positive electrode active material precursor particles.

The application discloses a hydrogen storage recycling system of a fuel cell and relates to the technical field of hydrogen fuel cells.The hydrogen storage recycling system of the fuel cell comprises a battery box main body, a hydrogen storage tank and a fuel cell stack are fixedly installed in the inside of the battery box main body, and a recycling mechanism is arranged on one side of the fuel cell stack.When the hydrogen storage recycling system of the fuel cell is used to recycle hydrogen, the gas discharged from the fuel cell stack enters the inside of a gas collecting tank through a buffer tank and a connecting pipe, and then enters the inside of a filter cartridge through a gas outlet, the inlet end of the filter cartridge is conical, so that the speed of the gas entering the filter cartridge is improved, the gas is driven to rotate the rotating shaft through the spiral blade, the rotating shaft drives the filter holder to rotate, the hydrogen is rapidly filtered through the filter membrane under the centrifugal effect, the shear force generated by the rotation is utilized to inhibit the pollution of the filter membrane, and therefore the service life of the filter membrane is effectively prolonged and the replacement frequency of the filter membrane is reduced.

This invention discloses an etching method for a special passivation layer structure with high light transmittance (clear ratio, CR). The invention employs a customized "step-by-step etching" process: the first stage uses high-pressure, high-RF power physical bombardment in an argon (Ar)-rich gas environment to rapidly etch the passivation layer and most of the TiN through enhanced physical bombardment; the second stage uses low-pressure, low-RF power and adjusted gas ratios to uniformly etch the remaining TiN while minimizing damage to the substrate. This method simultaneously solves the problems of TiN residue, substrate over-etching damage, and surface defects, significantly improving product reliability and yield.

This invention provides a multi-channel ultrasonic flow measurement method and system for small-diameter clean pipelines, comprising: obtaining steady-state phase difference estimates for each acoustic channel; extracting three types of quality cues: phase stability, amplitude energy, and related peak morphology; constructing a diffuse microbubble disturbance index based on the quality cues to determine the phase domain deviation compensation amount, and correcting the steady-state phase difference estimates based on the phase domain deviation compensation amount to obtain multi-channel measurement results; performing weighted fusion output on the multi-channel measurement results through a reliability score; stopping the weighted fusion step when a masking disturbance is detected, and switching to a masking event detection and degraded velocity estimation mode, or entering fault-tolerant output when event velocity measurement is unavailable; and outputting flow results and quality indicators. This invention achieves continuous and interpretable flow output even under microbubble, solution disturbance, and short-term masking conditions.

The utility model discloses a fermentation machine for improving natto fermentation quality, and belongs to the technical field of fermentation containers. A top air channel, a left interlayer air channel, a right interlayer air channel, a top main heating source, two side auxiliary heating sources and a bottom heating source are arranged in a box body and matched with cooling fins and cooling fans to form circulating hot air flow, and it is guaranteed that the temperature in the box is balanced; the box body is of a wooden structure and is provided with a lower ventilation hole with air filter cotton, the rear part of the box body is provided with an exhaust device consisting of an upper exhaust outlet, a high-speed exhaust fan and an exhaust fan switch, and a box body door is provided with a double-layer PC glass observation window; a humidifying disc is additionally arranged at the bottom, and an ultraviolet lamp with an ozone function and negative ion energy stones are arranged inside; the box body is provided with an external controller and is connected with an internal electric appliance assembly through an aviation plug female seat and an aviation plug male head, and a 220V-to-24V low-voltage power adapter supplies power to the internal electric appliance assembly. Oxygen supply, cleanliness and humidity of a fermentation environment are improved, heat efficiency is high, electrical use is safe, the structure is reasonable, and practicability is high.

This invention discloses a method for preparing a wettability-controlled conductive composite membrane, belonging to the technical field of water treatment equipment. The method includes: preparing an oxidant solution; adding a nitrogen-containing heterocyclic compound to the oxidant solution under ice bath conditions to obtain a conductive solution; immersing a substrate support layer in the conductive solution to obtain a conductive polymer layer; preparing a hydrophilic modification solution by mixing dopamine hydrochloride and sodium alginate; immersing the conductive polymer layer in the hydrophilic modification solution, and statically impregnating it at room temperature to form a conductive composite membrane. This conductive composite membrane exhibits strong detergency, effectively inhibiting membrane fouling, including complex composite fouling, and also shows slow flux decay, simple and effective cleaning methods, and a high membrane flux recovery rate.

An electrolyte for a lithium secondary battery and a lithium secondary battery are provided. The electrolyte for the lithium secondary battery comprises a butyrolactone compound containing at least one alkenyl group and a lithium salt. The lithium secondary battery includes: an electrode assembly containing a positive electrode and a negative electrode; and the electrolyte for the lithium secondary battery.

The invention discloses a man-machine cooperation calibration method, system and device and a storage medium, and aims to solve the problem that noise data generated by manual recheck pollutes an artificial intelligence model. The method comprises the following steps: establishing a dynamic credibility model for a worker and calculating a current credibility score; when man-machine judgment generates difference, carrying out shunting processing on difference cases based on credibility scores, and distributing the difference cases to a direct adoption or arbitration path; carrying out weighted training on the artificial intelligence model according to the training weight mapped by the credibility score on the corrected data which are confirmed to be correct; and establishing a personal error semantic vector library by the correction cases of which the errors are confirmed, and performing similarity matching when a new task is processed so as to push an early warning in real time. According to the invention, noise data can be suppressed, the expert resource bottleneck can be relieved, and accurate real-time tutoring of personnel can be realized.

The application discloses a kind of zinc negative electrode PVA / porous carbon array protective layer femtosecond laser preparation method, zinc negative electrode material and its application, to solve zinc negative electrode dendrite growth, corrosion passivation, hydrogen evolution side reaction highlights and the problems such as existing protective layer preparation process is complex, structure regulation precision is low.The preparation method includes three steps: S1 PVA is mixed with deionized water, heated and stirred to form a semi-thick solution;S2 the solution is uniformly coated on the surface of zinc foil, and a PVA protective layer is formed after drying;S3 PVA protective layer is decomposed by femtosecond laser, and a porous PVA / porous carbon array composite protective layer is prepared.The composite protective layer enhances the interface stability through PVA, and the synergistic effect of porous carbon guiding zinc ion uniform deposition effectively inhibits dendrite growth and corrosion reaction.The application process is simple, raw materials are environmentally friendly and cost is relatively low, suitable for mass production, and provides key technical support for commercialization of aqueous zinc ion battery.