14results about How to "Resolve inhibition" patented technology

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 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.

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.

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 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 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.