16results about How to "Efficiently obtained" patented technology

The invention discloses a method for rapidly and efficiently preparing a series of novel ester group facaplysin derivatives by combining EDCI and HOBT to react with carboxyl facaplysin and directly carrying out ester exchange reaction on an active ester intermediate and alcohol without separation. The invention also discloses application of the derivatives in resisting methicillin-resistant staphylococcus aureus and escherichia coli. The preparation method comprises the following steps that EDCI and HOBT are combined to activate carboxyl facaplysin for reaction, an activated ester intermediate is generated, the activated ester intermediate and alcohol are directly subjected to esterification reaction without separation, and a series of ester-based facaplysin derivatives are obtained. According to the preparation method, ester-based Fascaplysin derivatives with different structures can be rapidly and efficiently constructed, and compared with a traditional method that ester-based carboline derivatives are firstly synthesized and then high-temperature intramolecular cyclization is performed, the time and the raw material cost are greatly saved, the synthesis efficiency is improved, the reaction process is observable and controllable, and the yield is stable. And the synthesized ester group facaplysin derivative has excellent antibacterial activity on methicillin-resistant staphylococcus aureus and escherichia coli.

The application belongs to the field of sludge recovery, and particularly relates to a method for recovering calcium fluoride from calcium fluoride sludge, wherein the calcium fluoride sludge is pretreated under ultrasonic waves, the power of the ultrasonic waves is above 20 KHz; a flotation reagent is added to the system after ultrasonic treatment for rough selection, and calcium fluoride rough selection material is collected; the flotation reagent comprises an inhibitor and a collector, the collector comprises formula 1 and formula 2 in a weight ratio of 1:1-2, the pH of the slurry in the flotation stage is 3-5.5; the acid for regulating the pH of the slurry is at least one of hydrochloric acid and nitric acid. The application innovatively adopts an ultrasonic process to pretreat the calcium fluoride sludge, and then cooperates with combined collectors in subsequent flotation and joint control of the pH of the flotation process, so that synergy can be achieved, and high-grade calcium fluoride can be efficiently and greenly obtained based on simple processes and means.

This invention relates to the field of intelligent rail transit technology, providing a track detection method, apparatus, electronic device, and storage medium. The track detection method includes: obtaining target image data representing a track region from image data acquired by a camera; obtaining target point cloud data representing the track region from point cloud data acquired by a lidar based on the camera parameter matrix and the target image data; extracting a transformation matrix from the lidar coordinate system to the track plane coordinate system based on the target point cloud data; obtaining target track data generated by projecting the target image data onto the track plane based on the camera parameter matrix and the transformation matrix; and fitting a target track equation based on the target track data. This invention's track detection scheme combines the sensing capabilities of lidar with the motion-distortion-free and pixel-dense characteristics of camera imaging, improving track detection accuracy, increasing track detection distance, and efficiently and accurately obtaining track detection results.

This invention relates to the field of sliding bearing simulation and optimization technology, and more specifically to a high-precision simulation and optimization design method for hydrostatic thrust sliding bearings. It establishes an efficient decoupling model of the fluid-solid-thermal three-physics field of the hydrostatic thrust sliding bearing, decomposing the overall thermodynamic field into two subfields, which are coupled with the fluid force field and the solid force field, respectively. Then, it constructs a gap oil film flow / thermal field model and a friction pair deformation solid / thermal field model, achieving equivalent coupling through data transfer. The oil film control equations are iteratively solved to obtain oil film pressure, temperature, and flow velocity; the friction pair equations, including elastic constitutive and thermal strain equations, are solved to obtain their elastic and thermal deformations, with bidirectional data transfer achieving coupled iteration. Based on the above method, simulations are performed, establishing sub-models of oil film flow and friction pair deformation, using local interpolation and dynamic meshing to process the interface; the oil cavity is optimized based on the simulation results, parametric analysis is used to establish the mapping between structural parameters and lubrication performance, the objective function and constraints are defined, and the optimal oil cavity structure is obtained through algorithms.

The present invention relates to a method for manufacturing a solid electrolyte layer and a method for manufacturing a secondary battery. The method for manufacturing a solid electrolyte layer includes a step of preparing a solid electrolyte slurry by mixing a solid electrolyte, a conductive additive, a binder, and a solvent; a step of obtaining a parameter of the solid electrolyte slurry using a dynamic viscoelasticity measuring device; a step of determining a quality of a coating film based on the parameter; and a step of applying the solid electrolyte slurry that has been determined to be acceptable in the step of determining a quality of a coating film.

Provided is a method for efficiently obtaining a solution containing nickel and / or cobalt from alloys containing nickel and / or cobalt and copper, such as waste lithium-ion batteries. The present invention pertains to an alloy treatment method for obtaining a solution containing nickel and / or cobalt from alloys containing nickel and / or cobalt and copper, the method comprising: a leaching step S1 in which an acid solution is added to the alloys in the presence of a sulfurizing agent to perform a leaching treatment and obtain a leachate and a leaching residue; and a cementation step S2 in which a reducing agent and a sulfurizing agent are added to the resulting leachate to perform a copper-removal treatment for sulfurizing at least copper contained in the leachate and obtain a post-copper removal solution and a copper-removed residue, wherein the copper-removed residue obtained through the copper-removal treatment in the cementation step S2 is repeatedly subjected to the leaching step S1 and subjected to a leaching treatment together with the alloys.

The invention relates to the technical field of biochemical detection, in particular to a sample pretreatment method, a method for detecting the ratio of 5-methylcytosine to cytosine and a kit. The sample pretreatment method comprises the following steps: providing a sample containing substances to be detected, wherein the substances to be detected comprise 5-methylcytosine and cytosine; the method comprises the following steps: mixing magnetic beads containing sulfonic acid groups with a sample, carrying out adsorption treatment, and then carrying out leaching treatment by using an alcoholic solution to obtain a to-be-detected substance-magnetic bead compound; eluting the to-be-detected substance-magnetic bead compound by using the eluent to obtain a to-be-detected sample; the eluent comprises at least one of a formic acid-alcohol solution and an ammonia water-alcohol solution. The sample pretreatment method is simple in process and low in cost, the to-be-detected sample containing the 5-methylcytosine and the cytosine can be efficiently obtained, the ratio of the 5-methylcytosine to the cytosine can be accurately quantified in a high-sensitivity mode on the basis of the electrospray high-efficiency ion mobility spectrometry technology subsequently, and the method has good application prospects.

An image processing method and device, a computer readable storage medium and a terminal, the method comprising: acquiring F frames of first images, F being an integer greater than 1; inputting the F frames of first images into a neural network model trained in advance to obtain fusion parameters output by the neural network model, the fusion parameters comprising enhancement parameters and weight parameters, wherein the enhancement parameters comprise a mapping vector corresponding to each pixel point of each frame of first image, and the weight parameters comprise a weight value corresponding to each pixel point of each frame of first image; performing enhancement processing on the F frames of first images according to at least the enhancement parameters to obtain F frames of second images; and performing fusion processing on the F frames of second images according to the weight parameters to obtain a target image. Through the scheme provided in the present application, multiple frames of images can be fused efficiently to obtain a high-quality image.

The application discloses a heterogeneous oxidation reaction system, comprising the following units: an oxidation gas preparation unit, an oxidation reaction unit, a regeneration unit and a tail gas treatment unit. The application further discloses an application method of the high-concentration ozone water preparation system.

The application discloses a kind of based on the complex product module division method of multiple component correlation analysis.The steps of the present application are as follows: first, the final comprehensive correlation strength matrix of component is established from the perspective of product life cycle;Then, through the core component screening method based on the point weight ordering of undirected weighted network, multiple core components are screened out;Then, through the stable overlapping community discovery algorithm based on the shapley value determination in community, the complex product module division is realized, and multiple module division preliminary schemes are generated;If there are overlapping components between each module in the scheme, then assign these overlapping components to the most suitable module through genetic algorithm, and determine the final module division scheme by comparing the modularization measurement value Q of each module division candidate scheme.The present application is suitable for the module division of complex product with a large number of components, and can quickly generate the final scheme of complex product module division.

The invention relates to a medical ray protection preparation for relieving radiodermatitis, and belongs to the technical field of biomedical skin treatment. The preparation is composed of a preparation A and a preparation B. The preparation A is composed of the following components in percentage by weight: 0.01-0.03% of superoxide dismutase, 0.005-0.05% of trehalose and the balance of ultrapure water. The preparation B is prepared from the following components in percentage by weight: 0.01 to 0.04 percent of chlorogenic acid, 2.5 percent of potassium sorbate, 15 percent of sorbitol, 1 percent of hyaluronic acid, 2.5 percent of carboxymethyl chitosan and the balance of purified water. The superoxide dismutase, the trehalose, the chlorogenic acid and other active ingredients are utilized to relieve radiodermatitis from multiple aspects of removing active oxygen at a wound part, resisting inflammation, inhibiting bacteria and promoting skin barrier repair, and by utilizing the moisturizing and antibacterial effects of carboxymethyl chitosan and the functions of promoting collagen production and tissue repair of hyaluronic acid, the wound healing effect is improved, and the wound healing effect is improved. The radiodermatitis is comprehensively treated.

The application discloses a method for constructing an ultra-high performance concrete knowledge graph and machine explanation based on graph retrieval enhanced generation, and belongs to the technical field of ultra-high performance concrete knowledge graph construction and mechanism cognition, and comprises the following steps: obtaining a plurality of literatures related to ultra-high performance concrete; constructing an ultra-high performance concrete knowledge graph based on the plurality of literatures related to ultra-high performance concrete; performing retrieval of an adaptive length path on a target start and end node based on the ultra-high performance concrete knowledge graph, and obtaining at least one first candidate evidence chain corresponding to the target start and end node; inputting a target instruction and each first candidate evidence chain into a generation model to obtain corresponding machine explanation text. The method can efficiently obtain machine explanation of ultra-high performance concrete knowledge with high credibility.

This invention discloses a method for preparing 4N ammonium permanganate from low-concentration rhenium-containing waste acid, which is divided into a crude refining stage and a refining stage. The crude refining stage includes a rhenium precipitation process, a leaching process, a hydrolysis process, an acidification process, an extraction process, a back-extraction process, and a crystallization process. The refining stage includes a crude ammonium permanganate dissolution process, an ion exchange process, an extraction process, a back-extraction process, a crystallization process, and a nitration-recrystallization process, ultimately obtaining ammonium permanganate with a purity of 99.99%. In the crude refining stage, this invention first prepares 4N ammonium permanganate from low-concentration rhenium-containing waste acid. Rhenium is efficiently and selectively enriched in concentrated waste acid to obtain a 1% grade rhenium precipitate. Then, a weak oxidation leaching process is used to remove impurities from the precipitate, followed by calcium hydroxide hydrolysis, acidification, high-efficiency extraction, back-extraction, and crystallization to obtain a crude ammonium perrhenate product with a grade of ≥99%. In the refining stage, the crude ammonium perrhenate is dissolved a second time, and a resin ion exchange, extraction, back-extraction, and crystallization process is used to obtain a refined ammonium perrhenate with a grade of ≥99.9%. Finally, a nitration-recrystallization process is used to remove impurities from the refined ammonium perrhenate to achieve a 4N grade quality.

The invention discloses a water supply pipe network optimization scheduling method considering a water age nonlinear target, and the method comprises the steps: removing pipelines with small influence on water age, namely pipelines with small pipe diameter, small water flow and low water age sensitivity before iterative optimization, improving the iterative optimization efficiency of subsequent training, and efficiently obtaining a scheduling scheme of a water supply pipe network. According to the method, the upper limit and the lower limit of the set water age and the upper limit and the lower limit of the pressure are used for constructing an optimization objective function, so that an optimization result is prevented from deviating to a minimum or maximum water age node in a model training process, and the average water age and the water age deviation of the whole network can be remarkably reduced.

The application discloses a method for inducing the mycelial phase of Leucomycicella bicuspidata based on carbon quantum dots and application thereof, and the method comprises the following steps: preparing carbon quantum dots by a hydrothermal method, inducing culture of the mycelial phase, and morphological observation and confirmation. The carbon quantum dots are prepared by hydrothermal reaction of citric acid and urea at 230 DEG C for 15 hours, and the particle size is 2-8 nm; the carbon quantum dots are added into a Sabouraud glucose culture medium, the final concentration is 0.5 mg / mL, and the Leucomycicella bicuspidata is cultured at 28 DEG C for 24-28 hours, so that the mycelial phase of the Leucomycicella bicuspidata can be significantly induced; in combination with microscopic observation and PCR molecular confirmation, the mycelial formation rate can reach more than 85%. The method provides stable and reliable experimental materials for the study of the pathogenic mechanism and the prevention and control technology of the Leucomycicella bicuspidata.

The application discloses a method for efficiently obtaining callus of aquatic plant Sagittaria trifolia, and comprises the following steps: (1) obtaining and screening explants; (2) screening disinfectants for the explants; (3) exploring disinfection time of the explants; (4) exploring callus induction conditions; (5) exploring callus proliferation conditions; and obtaining callus; wherein the induction medium comprises 4.74 g / L MS medium, 6-BA with a concentration of 0.5-3 mg / L, 2,4-D with a concentration of 0.5-3 mg / L, IBA with a concentration of 0.5 mg / L, TDZ with a concentration of 0.5 mg / L, 30 g / L sucrose and 3 g / L plant gel. The application screens the most suitable explants, optimizes and adjusts the concentration ratio of the induction and proliferation medium, and improves the induction rate of the callus of Sagittaria trifolia. The method has the advantages of simple culture, large proliferation amount, short cycle and the like; and the callus of Sagittaria trifolia can be successfully induced by the method, and the method provides a method basis for the researches on the genetic transformation system of Sagittaria trifolia, the preservation of germplasm resources and the rapid propagation production and the like.