25results about How to "Resolve inhibition" patented technology

The invention belongs to the field of new energy automobile power batteries and the related field of laser welding, and discloses a technological parameter optimization method and system for spot ring light spot laser welding spatter suppression, and the method comprises the steps that the relation between the preheating temperature of an outer ring light beam to a weld joint and welding technological parameters is obtained; establishing optimization constraint conditions of the preheating temperature, and deducing optimization constraint conditions of process parameters; acquiring a preset range of the process parameters; and substituting the technological parameter values in the preset range into optimization constraint conditions of the technological parameters, and combining the technological parameters meeting the preheating temperature into optimized technological parameters. According to the method, by optimizing the preheating temperature of the annular light beam to the welding seam, regulation and control are directly carried out according to key factors for forming spatter, and generation of spatter is effectively restrained; by optimizing technological parameters, the stability of the welding process is improved, and therefore welding defects are reduced.

The invention discloses an application of an OsATS3 gene in regulation and control of rice flooding stress tolerance. According to the invention, an OsATS3 gene is constructed to edit a knockout vector, an agrobacterium tumefaciens-mediated method is adopted to transform rice calluses, and a knockout strain of the OsATS3 gene is obtained through screening, and the knockout strain of the OsATS3 gene shows a phenotype that after seeds germinate under a waterflooding condition, seedling root systems are developed, seedling growth of overground parts of seedlings is faster, the growth speed of first leaves is faster, and the seedling rate is high; the method has great significance in solving the problems of slow seedling growth, inhibited radicle development, low seedling rate and the like in the rice direct seeding process, and has a wide application prospect in plant breeding.

The invention relates to a method for efficiently purifying a high-salt nitrogen-containing water body. Mainly relates to a salt-tolerant heterotrophic nitrification-aerobic denitrification bacterium Halomonas ramblica 5505 with the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.30683. The strain is mainly used for removing ammonia nitrogen, nitrate nitrogen and nitrite nitrogen in water through assimilation, and the assimilation rates respectively reach 62.68%, 51.08% and 52.66%; meanwhile, part of inorganic nitrogen can be dissimilated into nitrogen-containing gas, and the final nitrogen removal efficiency reaches 100%, 100% and 74.4% respectively. The removal rate of the strain on ammonia nitrogen and nitrate nitrogen within 12 hours in simulated nitrogen-containing wastewater reaches 90% or above, and accumulated nitrite nitrogen can be completely removed by increasing the carbon-nitrogen ratio. The strain can effectively solve the problem of inhibition of high-salt nitrogen-containing wastewater on biological nitrogen removal function microorganisms, the nitrogen removal process is green and efficient, energy consumption is low, and the strain can be applied to ecological management and restoration of high-salt nitrogen polluted water.

The invention provides a composite preservative for fecal microorganisms and metabolites thereof and a same-tube multi-omics joint inspection integrated technology. The composite preservative comprises the following main components: cetyltrimethylammonium bromide (CTAB), ammonium chloride (NH4Cl) and phosphate buffer salt (PBS), the stability of microorganisms and metabolites thereof in the excrement sample in the room-temperature storage and transportation process can be kept, and the extraction efficiency of deoxyribonucleic acid (DNA) of the microorganisms in the excrement sample is guaranteed. In addition, by adding a treatment reagent, the influence of the preservative component on metabolite detection is eliminated, and the response and ionization efficiency of the excrement sample metabolite in the mass spectrum are remarkably improved, so that the sensitivity and accuracy of a detection result are improved. The method not only solves the problem of timeliness of excrement sampling, but also provides a technical basis and thought for feasibility research of the same-tube multi-omics of excrement samples, and has wide scientific research and clinical application prospects.

This utility model discloses a spiral-grooved vibration-damping tapered shank cutting tool, relating to the technical field of BT-type tapered shank cutting tools. Specifically, it is a spiral-grooved vibration-damping tapered shank cutting tool, comprising a flange and a BT-type tapered shank. The surface of the BT-type tapered shank is provided with spiral grooves, which are filled with elastic damping material. This spiral-grooved vibration-damping tapered shank cutting tool, by designing spiral grooves in the BT-type tapered shank and filling them with elastic damping material, utilizes the multi-head spiral structure of the spiral grooves to disperse vibration energy in multiple directions. At the same time, the elastic damping material absorbs high-frequency vibrations through shear deformation. This "rigid-flexible composite" structural design solves the contradiction between vibration suppression and structural strength in BT-type tapered shank cutting tools, and also provides high structural reliability without affecting the original strength of the BT-type tapered shank. It offers a BT-type tapered shank cutting tool that combines high rigidity, good vibration reduction performance, and low manufacturing cost.

The invention relates to the technical field of five-degree-of-freedom overhead crane systems, and in particular to a five-degree-of-freedom overhead crane auto-disturbance rejection sliding mode control method and system based on data-driven. The method comprises the following steps: establishing a state space model of the five-degree-of-freedom overhead crane system; designing a tracking differentiator for extracting the displacement of a reference trajectory and its differential signal, while expanding the parameter setting range and suppressing differential signal noise; constructing an extended state observer for real-time estimation of the overhead crane displacement and swing angle and their total disturbance signal; designing a sliding mode controller based on a generalized coupling error signal, combining a differentiator and an observer to form a composite auto-disturbance rejection sliding mode controller to achieve disturbance compensation; repeatedly iteratively correcting control inputs through a data-driven robust iterative learning controller to improve control accuracy and improve system robustness; positioning and anti-sway control of the five-degree-of-freedom overhead crane system based on the data-driven auto-disturbance rejection sliding mode controller, thereby improving the robustness of the overhead crane system and having broad application prospects.

The application discloses a fair and sequential model predictive control multi-objective optimization method for a parallel T-type three-level rectifier, and aims at solving the problems of power distribution, midpoint voltage balance, circulating current suppression, DC voltage stability and grid current tracking in a parallel T-type three-level rectifier system in a high-power rectifier occasion. The application adopts double closed-loop control, the outer ring adopts adaptive droop control with voltage feedforward, realizes the stability of DC voltage and load power distribution, the inner ring adopts fair and sequential model predictive control, through the fair priority order, not only the advantage that the sequential model predictive control does not need to select a weight factor is reserved, but also the problem that the optimal solution cannot be selected due to the fixed priority order of the sequential model predictive control is solved, the balance of the midpoint voltage, the circulating current suppression and the tracking of the grid current are realized, and the overall scheme realizes the multi-objective optimization control of the parallel system.

The present invention belongs to the field of high-voltage protection of power systems, and discloses a circuit for suppressing circuit breaker opening, restrike and capacitor switching overvoltage and overcurrent, including an AC power supply, a circuit breaker S1, a protection circuit and a capacitor C1, wherein the protection circuit includes a switch device control module, a transformer, a variable resistor R1, a resistor R2, a resistor R3, a resistor R4, a switch device K1, a switch device K2, a switch device K3, a switch device K4, an auxiliary circuit breaker S2, a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a diode D6, a reactor L1 and a DC power supply DC. The protection circuit proposed in the present invention can suppress the closing inrush current and closing overvoltage in the process of switching capacitors by the circuit breaker, suppress the opening overvoltage and circuit breaker reignition in the opening process, and replace the discharge coil to discharge the parallel capacitor after the opening, so as to realize the full process protection of the circuit breaker switching parallel capacitor.

The invention belongs to the field of high-voltage protection of a power system, and discloses a circuit breaker opening reignition and capacitor switching overvoltage and overcurrent suppression circuit, which comprises an alternating current power supply, a circuit breaker S1, a protection circuit and a capacitor C1, the protection circuit comprises a switching device control module, a transformer, a variable resistor R1, a resistor R2, a resistor R3, a resistor R4, a switching device K1, a switching device K2, a switching device K3, a switching device K4, an auxiliary circuit breaker S2, a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a diode D6, an electric reactor L1 and a direct-current power supply DC. The protection circuit provided by the invention can restrain closing inrush current and closing overvoltage in the process of switching the capacitor by the circuit breaker, restrain opening overvoltage and reignition of the circuit breaker in the opening process, and replace a discharge coil to discharge the parallel capacitor after opening, so that the protection of the whole process of switching the parallel capacitor by the circuit breaker is realized.

This invention relates to a method and system for extracting wafer defect detection signals, comprising the following steps: circuit gain calibration; system dark noise calibration; PMT gain curve calibration; adaptive scanning parameter calibration; and wafer defect detection signal extraction. This invention solves the problems of system noise suppression and effective signal extraction in wafer defect detection systems, thereby improving defect detection sensitivity.

The application relates to the technical field of cement materials, and particularly discloses a high ore fused stone ferrite aluminate cement material and a preparation method thereof. The cement material is prepared by jointly grinding and treating high belite ferrite aluminate cement clinker and a modifier. The modifier is composed of succinyl phosphonate, a quaternary ammonium salt and an aluminum source. The molecular formula of the succinyl phosphonate is HOOC-CH2-CH2-CO(PO3H2). The modifier composed of succinyl phosphonate, a quaternary ammonium salt and an aluminum source is used to perform mechanochemical coupling modification on the belite ferrite aluminate cement clinker, multi-level interface interaction occurs under the induction of mechanical force, directional poisoning and growth inhibition of calcium aluminate crystal nuclei are realized, the early strength of the cement is maintained, and the volume stability of the cement material is significantly improved.

The present application relates to a kind of space light regulation dynamic laser interference suppression and target tracking method, obtain overexposed image under laser interference, obtain laser interference position and intensity information by overexposed region segmentation combined with Gaussian fitting;Based on laser interference position and intensity information, generate the space light regulation interference suppression template adapted to current laser interference parameter, obtain image after laser interference suppression;Based on image after laser interference suppression, output residual interference position information and residual interference degree information, fuse target template and the multiscale feature of search area and model boundary blur, complete anti-interference target tracking;According to interference target motion trajectory information, predict future frame laser interference position by Kalman filtering algorithm, and then generate the space light regulation interference suppression template adapted to future frame laser interference parameter, obtain the corresponding image after laser interference suppression of future frame.It solves the problem of interference suppression and target stable tracking under dynamic laser interference scene.

The application provides a wind turbine power smoothing method based on hybrid weighted filtering and self-disturbance variable pitch, and belongs to the technical field of wind power generation control. The technical problems of wind turbine output power fluctuation under high wind speed turbulence and wind speed sudden drop turbulence conditions are solved. The technical scheme comprises the following steps: step S1: establishing a nonlinear mathematical model of a permanent magnet direct drive wind power generation system; step S2: generating a smooth power reference instruction; step S3: calculating a corresponding smooth reference speed instruction; step S4: adopting a linear self-disturbance variable pitch control algorithm based on Lyapunov stability; and step S5: realizing comprehensive power smoothing of the wind turbine under complex turbulence conditions. The application overcomes the insufficient adaptability of the fixed bandwidth controller under time-varying conditions, and significantly improves the power smoothing effect and operation reliability of the wind turbine under complex turbulence.

The application provides a composite preservative for fecal microorganisms and metabolites thereof and a same-tube multi-omics joint detection integrated technology. The composite preservative contains main components of cetyltrimethylammonium bromide (CTAB), ammonium chloride (NH4Cl) and phosphate buffered saline (PBS), can keep the stability of microorganisms and metabolites thereof in a fecal sample during storage and transportation at room temperature, and guarantees the extraction efficiency of deoxyribonucleic acid (DNA) of the microorganisms in the fecal sample. The application also eliminates the influence of the preservative components on metabolite detection by adding a treatment reagent, significantly improves the response and ionization efficiency of the fecal sample metabolites in mass spectrometry, and thus improves the sensitivity and accuracy of the detection results. The application not only solves the timeliness problem of fecal sampling, but also provides a technical basis and idea for the feasibility study of the same-tube multi-omics of the fecal sample, and has a broad research and clinical application prospect.

The invention relates to a semi-coke wastewater double-carbon-source biochemical treatment system and process, and the process comprises the following steps: pretreated semi-coke wastewater enters a front anoxic tank for denitrification reaction to remove COD and total nitrogen; effluent of the front anoxic tank enters an aerobic tank to be subjected to carbonization and nitration reaction, organic matters are removed, and ammonia nitrogen is converted into nitrite nitrogen and nitrate nitrogen; effluent of the aerobic tank enters a rear anoxic pretreatment tank for endogenous denitrification reaction; the mixed liquid in the rear anoxic pretreatment tank flows back to the front anoxic tank, and the reflux ratio is 400%-800%; and effluent of the post-anoxic pretreatment tank is subjected to mud-water separation and post-treatment to reach the standard and then is recycled. Mixed liquid backflow is carried out at the tail end of the rear anoxic pretreatment tank, the device has the advantages of being resistant to toxicity and impact, simple in technological process and low in operation cost, meanwhile, a large backflow ratio is adopted, nitrate nitrogen is removed, and meanwhile impact of biotoxicity on a biochemical system and inhibition of the biotoxicity on microorganisms are reduced.

A method for in-situ enhancement of total nitrogen removal of an anaerobic ammonia oxidation system by directly using excess sludge as a carbon source comprises the following steps: in an anaerobic environment, setting and operating a reactor, inoculating sludge into the reactor, controlling the concentrations of NH4 < + >-N and NO2 <->-N in inlet water of the reactor and hydraulic retention time, and meanwhile, recycling generated nitrogen through a gas circulating pump, when the denitrification performance of the reactor is stable, a certain amount of excess sludge is regularly added into the reactor at proper temperature and pH. The in-situ slow release of microbial products in the excess sludge well solves the inhibition problem of high-concentration organic matters on the activity of anaerobic ammonium oxidation bacteria, promotes the reaction rate of anaerobic ammonium oxidation and denitrification, improves the removal of NO3 <-> in an anaerobic ammonium oxidation system, reduces the accumulation of by-product nitrate in the anaerobic ammonium oxidation process, and improves the denitrification efficiency. Therefore, the comprehensive denitrification performance of the system is improved.

This invention discloses an audio enhancement system and method for underground broadcasting systems, relating to the field of audio enhancement technology. The system acquires noise signals and original audio signals from a mine roadway, processes them through standardization, encodes and transmits them, and then decodes them to obtain a standardized noise signal. The standardized noise signal undergoes frequency band amplitude shaping and time delay compensation, followed by a phase inversion operation to generate a reverse noise signal. Based on the original audio signal and a roadway sound reflection model, the reverberation component within the roadway is predicted. After phase inversion, a reverse reverberation signal is generated, and a reverberation gating coefficient is introduced for weighted control to obtain the actual reverse reverberation signal. The original audio signal, the reverse noise signal, and the actual reverse reverberation signal are then superimposed to obtain the final audio signal. Utilizing the principle of destructive interference, the system effectively reduces the impact of environmental noise and reverberation.

The present invention relates to a cutting part dust suppression structure, including a first and a second dust suppression structure, wherein the first dust suppression structure includes a front spray device of an arm and a rear spray device of a drum, wherein the rear spray device of the drum is fixed to the rear end of the drum blade, wherein the spray direction of the nozzle is designed to be along the tangent direction of the corresponding circle on the rear end surface of the drum where the corresponding nozzle is located, and is opposite to the rotation direction of the drum, wherein the front spray device of the arm is fixed to the top of the arm, the left side or the right side of the drum near the front end surface of the arm, wherein the spray coverage area of ​​the nozzle is designed to be in front of the corresponding nozzle, and the second dust suppression structure includes a rear spray device of the arm, wherein the rear spray device of the arm is fixed to the cylindrical surface of the arm near the rear end surface of the arm, wherein the nozzle is arranged at intervals in the left-right direction, and the spray coverage area is designed to be in front of and above the corresponding nozzle. The present invention has a significant dust suppression effect, can make up for the deficiency of dust suppression inside the drum, and at the same time minimize the influence of spray water on the grade of mineral materials.

The invention discloses a digital holographic microscopic imaging coherent noise suppression network model and method based on deep learning. The network model adopts a double-branch encoder-single decoder structure, and a double-branch encoder extracts local details and global noise features of an image in parallel; the innovative double-branch intensive attention fusion module fuses multi-scale features through an adaptive weighting and enhancement mechanism; and the decoder integrates information through jump connection and reconstructs a clear image. The training method generates a high-fidelity data set based on a physical simulation system. According to the method, speckle noise and parasitic fringes can be efficiently suppressed, the phase details of the object are effectively reserved while the peak signal-to-noise ratio and the structural similarity index are remarkably improved, and the method has excellent generalization ability and calculation efficiency and is suitable for real-time high-quality imaging of a digital holographic microscopy system.

This invention belongs to the field of coffee extract processing and purification technology, and discloses a method for inhibiting white spots in coffee concentrate. The method includes: first, diluting a pre-prepared coffee concentrate with deionized water to a soluble fixed content of 10-15°Brix and a natural pH of 5.0-5.8; then, taking a certain amount of the diluted coffee concentrate and preheating it to 40-55°C, while simultaneously adding hemicellulase, pectinase, neutral protease, and acid lipase, and performing enzymatic hydrolysis at a reaction temperature of 45-50°C for 2-3 hours, with a stirring speed of 50-80 rpm during the hydrolysis; then, raising the temperature of the hydrolyzed system to 90°C and maintaining it for 8-10 minutes to completely inactivate all enzyme activities; finally, concentrating the inactivated material at a concentration temperature ≤60°C using low-temperature vacuum to the target concentration and filling it to obtain the final product. This invention, based on existing equipment, adds a dilution step and an acid lipase to target the hydrolysis of triglycerides, while extending the hydrolysis time, effectively inhibiting the formation of white spots and doubling the shelf life.

The application discloses a high-resolution remote sensing image semantic segmentation method and device, equipment and medium, including: using an encoder and decoder architecture to establish a remote sensing image semantic segmentation model; the encoder in the model includes two encoding branches, which are respectively used for processing radar image data and optical image data; collecting remote sensing image data corresponding to a preset area, constructing a training set according to the remote sensing image data, and using the training set to iteratively train the remote sensing image semantic segmentation model; obtaining target remote sensing image data corresponding to a target area, inputting the target remote sensing image data into the trained remote sensing image semantic segmentation model, and outputting corresponding semantic segmentation results through the remote sensing image semantic segmentation model. The technical scheme of the embodiment of the application can fuse image information of radar and optical images of two different modalities, and improve the accuracy of the remote sensing image semantic segmentation result.

The application provides a coal quality detection method, a model construction method and a detection system. The method comprises the following steps: S1, acquiring LIBS spectrum and NIRS spectrum of a coal sample, and a standard measured value of a coal quality index of each sample; S2, extracting a characteristic peak area of the LIBS spectrum based on a plurality of preset elements to obtain a LIBS characteristic peak area matrix; performing noise reduction and normalization on the NIRS spectrum to obtain a NIRS spectrum matrix; S3, respectively constructing a kernel function with an independent bandwidth parameter for the LIBS characteristic peak area matrix and the NIRS spectrum matrix; S4, weighting and fusing the two kernel functions based on a weight factor of adaptive learning to construct a hybrid kernel function; S5, taking the hybrid kernel function as a kernel function of any regression model, and optimizing a parameter vector by using a parameter optimization algorithm to obtain an optimal value of the parameter vector; the parameter vector comprises a weight factor, a regularization parameter of the regression model and a bandwidth parameter; and S6, inputting the optimal value of the parameter vector into the regression model to perform coal quality detection.

The invention relates to the technical field of cement materials, and particularly discloses a high-ore-melting-stone iron aluminate cement material and a preparation method thereof. The cement material is prepared by grinding high belite sulfur iron aluminate cement clinker and a modifier together. The modifier is composed of succinyl phosphonate, quaternary ammonium salt and an aluminum source. The molecular formula of the succinyl phosphonate ester is HOOC-CH2-CH2-CO (PO3H2). According to the invention, a modifier composed of succinyl phosphonate, quaternary ammonium salt and an aluminum source is used for carrying out mechanochemical coupling modification on belite pyrite aluminate cement clinker, and multi-level interface interaction occurs under the induction of mechanical force, so that directional poisoning and growth inhibition of ettringite crystal nucleus are realized; and the volume stability of the cement material is remarkably improved while the early strength of the cement is maintained.

The present application relates to a kind of high-efficiency purification high-salt nitrogen-containing water body method.It is mainly related to salt-tolerant heterotrophic nitrification-aerobic denitrification bacteria Halomonas ramblicola 5505, preservation number:CGMCC No.30683.The strain is mainly removed ammonia nitrogen, nitrate nitrogen and nitrite nitrogen in water through assimilation, and assimilation rate reaches 62.68%, 51.08% and 52.66% respectively;Part of inorganic nitrogen can be isomerized into nitrogen-containing gas by the strain, and the final nitrogen removal efficiency is 100%, 100% and 74.4% respectively.In simulated nitrogen-containing wastewater, the strain can remove more than 90% of ammonia nitrogen and nitrate nitrogen within 12h, and the accumulated nitrite nitrogen can be completely removed by increasing the carbon-nitrogen ratio.The strain can effectively solve the problem of inhibition of high-salt nitrogen-containing wastewater on biological denitrification functional microorganisms, and the nitrogen removal process is green and efficient with low energy consumption, which can be applied to ecological management and restoration of high-salt nitrogen-polluted water body.

The utility model relates to the technical field of composite permanent magnet motors, and discloses a multi-rotor magnetic gear composite permanent magnet motor with magnetism adjusted by a magnetism adjusting ring, which is characterized in that a permanent magnet stator is arranged on the inner surface of a motor shell; components in the permanent magnet rotor comprise a surface-mounted permanent magnet rotor and an embedded permanent magnet rotor. When current passes through the permanent magnet rotor assembly, electromagnetic force is generated through the current, so that the magnetic flux of the motor is changed. And the surface-mounted permanent magnet rotor assembly is of an independent structure and complements each other. The adjuster can adjust parameters of the magnetic gear through the magnetic adjusting ring, and the magnetic adjusting ring is of a half-crescent structure. According to the multi-rotor magnetic gear, the multi-rotor structure is simple and convenient, the torque pulsation is reduced, the magnetism adjusting performance is improved, and the defects that a common single magnetic gear is poor in torque restraining effect and inaccurate in magnetism adjusting are overcome.