14results about How to "Low variability" patented technology

The invention relates to the technical field of retina image quality evaluation, and particularly discloses a retina image quality evaluation method based on double-path frequency domain cross attention fusion, comprising the following steps: step S1, acquiring an RGB image; s2, preprocessing the quality of the BGR image through a contrast limit adaptive histogram equalization algorithm to obtain a CLAHE image; s3, inputting the RGB image and the CLAHE image into a dual-path frequency domain DenseNet121 network, and extracting features of the RGB image and the CLAHE image through a frequency domain attention mechanism algorithm; s4, refining the extracted features through a double cross attention algorithm, and obtaining integration of the BGR image and the CLAHE image; and S5, obtaining a quality evaluation result through a linear classifier. According to the method, important retina image structure details are reserved, and the adaptability of the model to different illumination conditions is also improved.

The invention relates to the technical field of hot melt adhesives, in particular to an EVA hot melt adhesive production monitoring method and system.The method comprises the steps that firstly, environmental condition data and production process parameter data of an EVA hot melt adhesive production site are collected and processed, and EVA hot melt adhesive production data are obtained; then, carrying out relation learning on historical production data and EVA hot melt adhesive quality data, and constructing an EVA hot melt adhesive production stability monitoring model; thirdly, inputting EVA hot melt adhesive real-time production data into the stability monitoring model, and obtaining an EVA hot melt adhesive quality data prediction result through feature extraction and fusion; and finally, judging whether the current production condition is stable or not according to a prediction result, and monitoring and reminding. According to the method, a plurality of influence factors in the EVA hot melt adhesive preparation and processing link are comprehensively collected and analyzed, so that the stability of the EVA hot melt adhesive preparation and processing flow is improved, and the quality and consistency of the EVA hot melt adhesive product are further improved.

The invention discloses a preparation method of a semi-solid metal elastomer, which comprises the following steps: (1) adding liquid metal into water, and carrying out ultrasonic mixing to obtain an aqueous solution of suspended particles of liquid metal droplets; (2) adding solid metal particles into the aqueous solution in the step (1), and performing ultrasonic mixing to obtain a mixed suspension aqueous solution of the solid metal particles and the liquid metal droplets; (3) adding an acidic solution into the mixed suspension aqueous solution in the step (2) to obtain a solid precipitate, namely semi-solid metal SSM; and (4) grinding the semi-solid metal and the elastomer precursor solution, and curing to obtain the semi-solid metal elastomer SSME. The prepared semi-solid metal elastomer has better mechanical performance and conductivity, and the resistance change under strain is not obvious.

The invention discloses a multi-channel small animal inhalation anesthesia induction box, and relates to the field of anesthetics animal research. In the prior art, a test cavity of a transparent induction box is divided into a plurality of experiment cavities by partition plates, and adjacent experiment cavities are communicated, so that only a single-concentration anesthesia experiment can be carried out. The invention provides a multi-channel small animal inhalation anesthesia induction box. An anesthesia induction area, an adjuster and an experiment area are arranged in an induction box main body. In the anesthesia induction area, the size of an anesthesia box is controlled through a curved induction channel, an adjuster and an anesthesia injection cavity, use of anesthetic gas is reduced, the concentration of the anesthetic gas is monitored and adjusted in real time through an anesthetic gas adjusting and monitoring assembly and a waste gas treatment mechanism, meanwhile, waste gas obtained after an experiment is subjected to harmless treatment, and the environment is protected. The safety performance of the experimental device is improved, and the experimental result is more intuitive and accurate through real-time experimental data comparison of a plurality of same experimental devices in the experimental area.

The invention discloses an application of a compound 5928-0054 in preparation of anti-staphylococcus aureus hemolysin medicines, and belongs to the field of microbial infectious diseases and medicines. The invention finds that the compound 5928-0054 can neutralize the toxicity of staphylococcus aureus hemolysin, has a protection effect on mice infected by MRSA staphylococcus aureus USA300, and has the application of preparing the anti-staphylococcus aureus hemolysin medicine and the medicine for preventing or treating staphylococcus aureus infection. The new medicinal value of the compound 5928-0054 is found, and a new medicine for preventing and treating staphylococcus aureus infection is provided; the compound 5928-0054 can neutralize the main virulence factor of staphylococcus aureus, namely hemolysin, so that inflammatory injury is relieved.

The invention discloses a software project cost prediction method and system based on artificial intelligence. The method comprises project data collection, data optimization, project management cost prediction, project technology cost prediction and software project cost comprehensive prediction. The invention relates to the technical field of software project cost, in particular to a software project cost prediction method and system based on artificial intelligence. According to the scheme, prediction of two routes of project management and project technology is adopted, and weighted summation of the two predicted routes is adopted to predict the cost of a software project. A specific reference for software project cost prediction is provided more sufficiently and more clearly; by adopting a prediction method combining linear regression, convolution and an artificial neural network, the feasibility and accuracy of software project management prediction are improved; a prediction method based on the recurrent neural network is used for software project cost prediction, and a good data basis is provided for subsequent comprehensive prediction.

The invention relates to the technical field of plant polyploidy breeding, and provides a method for inducing dandelion chromosome doubling by colchicine, which comprises the following steps: sowing and germinating to obtain seedlings, and coating plant growing points of the seedlings with a colchicine solution for induction treatment to obtain dandelion with doubled chromosomes. According to the technical scheme, the problems that traditional breeding of the alkaline land dandelions is difficult, novel breeding technologies are deficient, good varieties are few, biomass of some high-quality varieties is small, and industrial development of the alkaline land dandelions is affected in the prior art are solved.

A mold (300) for manufacturing a gas turbine fan casing made of composite material, comprising: a core mold (331), on which a fiber preform (310) of the fan casing is intended to be wound, the core mold comprising an annular wall and two side mold plates (330), the contour of the outer surface of the annular wall corresponding to the contour of the inner surface of the casing to be manufactured, and the contour of the side mold plates corresponding to the contour of the outer flange of the casing to be manufactured; a plurality of angled counter-mold sectors (321), which are assembled on the core mold in a sealed manner and are intended to close the mold and compact the fiber preform wound on the core mold; and at least one compacting wedge (320), which is placed between the fiber preform wound on the core mold and the associated angled counter-mold sectors, characterized in that the compacting wedge is carried on one of the side mold plates of the core mold and is intended to cover the top (312) of one of the outer flanges (311) of the casing to be manufactured.

There is described a device (100) for planning a transfer line (26) of an analysis device (10), the device (100) comprising a holding element (110) for holding the transfer line (26), and a coupling element (120) for magnetically coupling with the holding element (110) and to the analysis device (10). In addition, analysis devices and methods are described.

This invention discloses a visual detection method for part contours based on local tracking path planning. The method is as follows: 1. Establish the measurement coordinate system required for visual measurement. 2. Obtain the coarse measurement panoramic contour. Take the circumscribed rectangle of the coarse measurement panoramic contour in the image as the detection area. 3. Preprocessing of the tiled intersection path. 4. Perform local measurement path planning using the A-GSAA algorithm. 5. The probe device performs local tracking measurement according to the optimal measurement path, obtaining n local images; the n local images are stitched together using overlapping parts to extract the contour, obtaining the fine measurement contour. This invention uses A-GSAA to plan the measurement path for the local image shooting points extracted by tiled intersection, and adopts adaptive crossover probability and mutation probability. In the early stage of iteration, the crossover probability and mutation probability are maintained at a high level to promote the generation of new individuals, and the crossover probability and mutation probability are reduced in the later stage of iteration to avoid destroying good individuals.

The present application relates to a method and system for adjusting a direct fuel injector, and a method and system for reducing direct injector fueling errors caused by injection variability in a transition region of a direct injector map are disclosed. Fuel injection can be scheduled based on engine operating conditions including engine temperature and driver demand, and the fuel injection includes using one or more direct injection fuel pulses and port injection fuel pulses. In response to any pulse of the direct injection fuel pulse having a pulse width located in a high variability transition region of the direct injector, the fuel injection can be adjusted by adjusting the number of injections and / or the split ratio so as not to operate in the transition region.

The invention discloses an application of a compound 3546847 in preparation of anti-staphylococcus aureus hemolysin medicines, and belongs to the field of microbial infectious diseases and medicines. The invention finds that the compound 3546847 can neutralize the toxicity of staphylococcus aureus hemolysin, and has a protective effect on MRSA staphylococcus aureus USA300 infected mice. The compound 3546847 can be applied to preparation of anti-staphylococcus aureus hemolysin medicines and medicines for preventing or treating staphylococcus aureus infection. The new medicinal value of the compound 3546847 is found, and a new medicine for preventing and treating staphylococcus aureus infection is provided; the compound 3546847 can neutralize the main virulence factor of staphylococcus aureus, namely hemolysin, so as to relieve inflammatory injury.

The invention discloses a method for inducing a direct organ generation type regeneration path of blackberries by using leaves as explants, which belongs to the technical field of plant biologication.The method comprises the steps of obtaining of sterile materials, regeneration culture of the leaves, subculture of regenerated buds, rooting culture of regenerated seedlings and acclimatization and transplantation. According to the method, after the tender stem explants are collected from a field and induced to obtain the sterile blackberry seedlings, the adventitious buds are subjected to direct organ generation type regeneration induction by using the leaves of the sterile seedlings, and finally the complete plants are obtained, so that a new explant source is provided for blackberry tissue culture, and a construction method of a direct organ generation type regeneration way is established; and a foundation is laid for somatic cell mutagenesis polyploid breeding and exogenous gene transformation of improved varieties.