39results about How to "Break through performance bottlenecks" patented technology

This invention discloses a method for enhancing and controlling the radiation of an LPP-EUV light source based on dual-pulse spatiotemporal co-constraint, belonging to the field of semiconductor manufacturing technology. This invention obtains a spatiotemporal reference by real-time monitoring of a liquid metal droplet, uses a pre-pulse laser to induce target material deformation into a fogged target cloud, and combines high-speed imaging and a hydrodynamic model to predict the time and coordinates of the target cloud's energy absorption peak. It dynamically adjusts the delay time and optical axis direction of the main pulse laser to achieve dual-pulse spatiotemporal co-constraint, and constructs a closed-loop control system through a recursive least squares algorithm with a dynamic forgetting factor. This invention effectively improves the extreme ultraviolet light conversion efficiency, controls the power fluctuation of the light source within ±0.5%, and extends the maintenance cycle of optical components by 2 times. It can be widely applied to next-generation high-power extreme ultraviolet lithography light source systems, meeting the application requirements of semiconductor miniaturization processes.

The application discloses high-strength composite cement blanket and belongs to the technical field of civil engineering composite materials. The application improves the three-dimensional fabric structure: a three-dimensional weaving is adopted to form a top layer, a middle layer and a bottom layer, wherein the middle layer is formed by a honeycomb three-dimensional structure formed by interweaving vertical fiber filaments and horizontal oblique fiber filaments which are arranged obliquely relative to the vertical fiber filaments; the vertical fiber filaments connect the top layer and the bottom layer; and the horizontal oblique fiber filaments pass through the vertical fiber filaments in an S-shaped wiring mode multiple times to form limiting knots which are distributed in the top layer, the middle layer and the bottom layer to form an overall tensile strength reinforcing structure. The three-dimensional fabric can be combined with a "two cloth and one film" protective layer and a solidifiable composite material containing gold steel sand. The application realizes isotropic reinforcement through the honeycomb structure and builds a mechanical occlusal interface through the S-shaped limiting structure, thereby significantly improving the bending strength, interface adhesion and waterproof durability of the cement blanket, and the application is suitable for slope protection, trench lining and temporary road paving engineering and the like.

The invention relates to the technical field of petroleum drill rods, in particular to a drill rod joint gradient coating and a preparation method and a coating method thereof. The gradient coating of the drill rod joint comprises a bottom layer, a middle layer and a surface layer, the bottom layer, the middle layer and the surface layer are sequentially stacked on the surface of a drill rod connector base body which is subjected to plasma electrolytic polishing-micro-arc oxidation composite pretreatment and silanization bridging. According to the invention, the whole process optimization of anchor pattern pretreatment-coating coating-curing molding of the drill rod thread is realized, through unique composition design and a spraying process, the comprehensive properties of lubrication, wear resistance and rust prevention of the coating are improved, continuous protection and performance recovery of the thread surface under dynamic load are realized, and the service life of the thread is prolonged. The service life of the drill rod is effectively prolonged, the maintenance cost is reduced, the problem that shackling cannot be conducted in the using process can be effectively solved, and heavy metal pollutants cannot be generated in the technological process.

This invention relates to the field of metal material processing technology. It discloses a synergistic composite forming process for metal wire electroforming and drawing, comprising the following steps: first, surface cleaning and activation treatment of the base metal wire to remove oxide layers, oil stains, and impurities; then, feeding the pretreated wire into an electroforming device to deposit a metal plating layer, obtaining an initial electroformed composite wire; subsequently, direct online radial high-pressure drawing to achieve a dense bond between the electroformed layer and the base metal; followed by annealing of the composite wire; repeating the electroforming, drawing, and annealing steps at least once to complete multiple synergistic cycles; finally, testing the dimensional accuracy, mechanical properties, and interlayer bonding force of the composite wire, and cutting it into finished products after passing the tests. This invention employs an online tandem synergistic process of electroforming and drawing, avoiding plating oxidation and interface contamination. Radial high-pressure drawing can compact the plating layer, eliminate porosity, and improve bonding density.

The invention discloses a temperature control method for processing graphite by using double plasma sources, and relates to the technical field of plasma material processing, in particular to a temperature control method for processing graphite by using double plasma sources, which comprises the following steps: adopting a cylindrical reactor, and arranging a plasma source I and a plasma source II up and down along the axial direction on two sides of the cylindrical reactor, and an outlet of the powder feeding mechanism directly faces a core high-temperature area of the plasma source I, so that graphite powder directly enters a heating area. The two sources are connected in series up and down to construct a continuous relay type high-temperature path. The center distance between the powder feeding port and the source I is limited not to exceed half of the outlet diameter of the reactor, the center distance between the two sources is 1-2.5 times of the outlet diameter, and the center distance between the source II and the outlet is larger than 5 times of the diameter; the flow of the second source is 1.2-1.8 times that of the first source, the temperature of the core area is maintained to be 8000-10000 K by adjusting the flow ratio, and the total power does not exceed 100 kilowatts. The total retention time of the graphite powder in a two-source high-temperature area is longer than 0.2 second, the diameter of an outlet of the reactor is 100-400 mm, the reactor is made of high-temperature-resistant stainless steel or graphite, and accurate control over the graphite treatment temperature is achieved.

The invention belongs to the technical field of biochemical engineering, and particularly relates to application of a P450 enzyme mutant and engineering bacteria thereof in synthesis of calcifediol, and the mutant is obtained by mutating one or more sites in an amino acid sequence based on a wild type P450 enzyme Vdh; the amino acid sequence of the wild type P450 enzyme Vdh corresponds to the accession number of GenBank, namely CP069288.1. Through systematic molecular dynamics simulation, conservative analysis and substrate binding pocket engineering on the Vdh enzyme, a plurality of key mutation sites are successfully screened and obtained. The constructed combined mutant (such as I144R / N173M / Q310R, Vdh-M3) shows extremely high hydroxylation activity, the pure enzyme activity of the combined mutant can reach 9.8 times that of a wild type enzyme, and the conversion rate from vitamin D3 to calcifediol is greatly increased.

This invention discloses a self-healing, anti-corrosion, and cooling coating and its preparation method. The preparation method includes: TiO2 surface activation treatment; in-situ construction of a mesoporous silica shell and loading of a corrosion inhibitor; surface silane modification; and coating and curing after blending the obtained filler with resin and curing agent. The coating consists of a polymer resin matrix and a multifunctional core-shell nanocomposite material uniformly dispersed therein; the composite material has a three-level structure of core-shell-interface layer: titanium dioxide as the core, mesoporous silica loaded with corrosion inhibitor as the functional shell, and a silane coupling agent as the interfacial compatibility layer. Through multi-level structural design, this invention enables a single filler to simultaneously achieve high solar reflectance, high infrared emission, and intelligent release of corrosion inhibitors. The coating combines a physical barrier, active corrosion prevention, and radiation cooling triple protection mechanism, and can be widely used for long-term protection of outdoor metal or non-metal substrates.

The application relates to the technical field of CAE preprocessing and cloud cooperation, and discloses a lightweight CAE geometry engine and a cloud real-time cooperation method and system. A cloud server acquires an original CAE geometry model, performs topological simplification and data compression on the original CAE geometry model, and generates a lightweight geometry data file containing multiple resolution levels; the cloud server pushes the received difference data packet to other online cooperation terminals; the other cooperation terminals parse the unique version number carried by the difference data packet through a locally loaded WebAssembly geometry engine module, and perform operation replay updating on the local geometry model according to the differential data contained in the difference data packet. According to the scheme, the original CAE model data volume is reduced by 90%-95%, the WebAssembly engine realizes a 100,000-face model rendering frame rate of 30-60 fps, and the operation response delay is less than or equal to 100 ms, thereby breaking through the performance bottleneck of browser-side geometry processing.

This disclosure provides a coordination-regulated, high-stability aqueous organic flow battery adapted for frequency regulation in thermal power energy storage and its preparation method. The preparation method includes: adding deoxygenated deionized water to organic anode active material and anode coordination regulator, introducing an inert gas, stirring, and adding a pH adjuster to adjust the solution pH, followed by stirring to form an anode electrolyte; adding deoxygenated deionized water to organic cathode active material and cathode coordination regulator, introducing an inert gas, stirring, and adding a supporting electrolyte, followed by stirring to form a cathode electrolyte; immersing an ion exchange membrane in a modification solution and stirring to obtain a modified membrane; immersing the modified membrane in an alkali metal solution to activate ion exchange sites; immersing the electrode in a doping solution for dispersion treatment and drying to obtain a doped electrode; using this doped electrode as the working electrode, a platinum sheet as the counter electrode, and a saturated calomel electrode as the reference electrode, and performing cyclic voltammetric activation in H2SO4 solution.

The application belongs to the technical field of biomass catalytic conversion, and specifically discloses a gallium-modified dealuminized H-ZSM-5 catalyst, a preparation method and application thereof, and the method comprises the following steps: ion exchange is performed on Na-ZSM-5 molecular sieve and an ammonium salt solution; selective dealuminization is performed on NH4-ZSM-5 molecular sieve and an ammonium hexafluorosilicate solution; and the impregnation method is used to load a gallium salt solution to the dealuminized molecular sieve carrier DeAl-H-ZSM-5, so as to obtain the gallium-modified dealuminized H-ZSM-5 catalyst. The application adopts the above-mentioned gallium-modified dealuminized H-ZSM-5 catalyst, the preparation method and application thereof, and the method is characterized in that the composite strategy of purifying the base by selectively dealuminizing first and then precisely loading Ga to regulate the acidity is adopted, the prepared catalyst can efficiently catalyze the preparation of furfural from pentose in a γ-valerolactone / water system, and high conversion rate and high selectivity are realized.

This application relates to the field of functional materials preparation technology, specifically to a dysprosium-based magnetoelectric compound with magneto-controlled electrical behavior constructed using chiral proline as a ligand, its preparation method, and its application. This dysprosium-based magnetoelectric compound allows for the modulation of its electrical properties using a magnetic field. This dysprosium-based magnetoelectric compound addresses the limitations of molecular-based magnetoelectric coupling materials and their demanding preparation conditions. It is an eight-coordinate dysprosium-based molecular magnetoelectric material that simultaneously exhibits slow magnetic relaxation behavior and magnetic field-controlled electrical properties. The resulting magnetoelectric properties can significantly improve the information storage density of non-volatile memories and contribute to improving the performance of molecular spintronic devices. Its unique performance advantages not only help overcome the performance bottlenecks of traditional silicon-based electronic devices but also provide a new breakthrough for the fundamental research and application development of magnetoelectric materials.

The application relates to a compiled graph fusion optimization method, device, equipment, storage medium and computer program product. The method comprises the following steps: acquiring breakpoint information corresponding to a plurality of operation logic segments generated in a front-end tracking process of a computation graph compilation, the breakpoint information comprising operation information triggering a breakpoint, context tensor attributes and a dependency relationship, the dependency relationship being an association relationship between the operation triggering the breakpoint and the context tensor; based on the operation information triggering the breakpoint, the context tensor attributes and the dependency relationship, performing fusion reconstruction on the plurality of operation logic segments to obtain at least one fused logic segment; and performing back-end compilation based on the at least one fused logic segment to obtain compilation information of the computation graph. The method can reduce graph breakpoints.

The application discloses an IP bridging method and system based on star flash SLE, belongs to the technical field of short-distance wireless communication and Internet of Things, and aims at the problems of complex multi-connection management, high deployment cost of heterogeneous network intercommunication of the existing low-power wireless IP scheme.The center device is configured as an access point role, the mapping relationship between terminal MAC addresses and connection identifiers is maintained through a connection management list, a unique SLE virtual network interface is created in an IP protocol stack, bidirectional data forwarding of a single interface to multiple SLE connections is realized, a data link layer bridging channel of SLE and WiFi can be further established, and two-layer transparent forwarding is realized.The application can simplify multi-device access management logic, reduce networking complexity, and improve the efficiency and compatibility of low-power terminal IP access.

This invention discloses a nonwoven floor mat and its manufacturing process, belonging to the technical field of floor protection materials. The mat comprises, from top to bottom, a PE film layer, a nonwoven fabric layer, a self-adhesive layer, and a release paper layer. The PE film layer is a cast PE film, anchored to the nonwoven fabric layer by solvent-free hot pressing. The nonwoven fabric layer is a three-dimensional interconnected porous structure formed by pre-needling and reverse main needle punching of chemical fibers, with an air permeability ≥300mm / s and a saturated moisture absorption rate ≥15%. The self-adhesive layer is a grid-like water-based acrylic pressure-sensitive adhesive layer, and the width and length ratio of the PE film to the nonwoven fabric is 1:1. The manufacturing process includes four main steps: nonwoven fabric preparation, self-adhesive coating, nonwoven fabric-PE film lamination, and finished product post-processing. This invention, through synergistic optimization of structure and process, simultaneously achieves the core properties of waterproofing, anti-slip, self-adhesive, breathability, residue-free application, and moisture absorption and mildew prevention, making it widely adaptable to the surface protection needs of various scenarios such as construction, decoration, maintenance, painting, and warehousing.

This invention provides a method for preparing and applying a long-lasting photocatalytic antifouling coating material, belonging to the field of marine antifouling coating technology. This invention uses an improved wet chemical reduction method to prepare an Ag@CuGaO heterojunction photocatalytic antifouling agent. This material is a nanocubic structure of CuGaO modified with Ag nanoparticles, with a silver loading of 0.5~10wt%. It combines the small size effect of Ga doping with the surface plasmon properties of Ag, which can broaden the light absorption range and improve carrier separation efficiency. 1~5 parts by weight of this antifouling agent are compounded with 100 parts by weight of organosilicon resin, and an organosilicon antifouling coating is prepared after substrate pretreatment, ultrasonic dispersion, curing and degassing, and spin coating curing. The coating of this invention achieves integrated antifouling and antibacterial properties, with an immediate bactericidal rate of 99% against Staphylococcus aureus and Pseudomonas aeruginosa, and an antibacterial rate of >90% after 60 days in a simulated marine environment. It effectively solves the problems of photocorrosion, short antifouling cycle, and poor mechanical properties of traditional photocatalytic materials, and is suitable for preventing biofouling on metal surfaces of marine facilities. The process is green and economical.

The application relates to a radio frequency fingerprint identification method and system for SAT-AIS, and relates to the technical field of radio frequency fingerprint identification, wherein the method comprises the following steps: S1, I / Q data about a ship is received by using a SAT-AIS device, and the I / Q data is preprocessed; S2, a radio frequency fingerprint identification network is constructed, the radio frequency fingerprint identification network comprises a feature extraction module and a classification module, wherein the feature extraction module is used for extracting features, and the classification module is used for identifying the features extracted by the feature extraction module; and S3, radio frequency fingerprint identification is performed on the preprocessed I / Q data through the radio frequency fingerprint identification network, so that the probability that the I / Q data belongs to different ships is obtained. The application can effectively perform radio frequency fingerprint identification on I / Q data from a SAT-AIS device.

The application discloses a negative electrode interface layer for a zinc ion battery and a preparation method thereof, and a zinc ion battery, relates to the technical field of energy storage batteries, and the negative electrode interface layer for the zinc ion battery is formed by in-situ polymerization of natural raw lacquer on the surface of a zinc negative electrode and has a molecular sieving effect; the negative electrode interface layer for the zinc ion battery is configured to screen zinc ions through phenolic hydroxyl functional groups to realize uniform flux of the zinc ions, and repel corrosive anions and active water molecules in an aqueous electrolyte through a hydrophobic long carbon chain, so as to guide zinc to deposit along a (002) crystal face and inhibit dendrite growth.

The invention discloses heat-resistant glucose dehydrogenase and application thereof in an enzyme fuel cell, and belongs to the crossing field of bioelectrochemistry and new energy technologies. According to the invention, firstly, a heat-resistant glucose dehydrogenase TeGDH is screened, and the heat-resistant glucose dehydrogenase TeGDH is subjected to heterologous expression in escherichia coli BL21 (DE3) and shows good heat stability and catalytic activity; teGDH is dissolved in an anolyte containing an electron mediator anthraquinone-2, 6-disulfonic acid disodium salt, and the heat-resistant high-energy enzyme fuel cell is prepared by adopting a non-immobilized system; the maximum power density of the battery at 50 DEG C reaches 1.74 mW / cm, and the battery has good thermal stability and long-term operation performance; the invention combines big data mining, enzyme engineering and electrochemical technologies, provides a novel enzyme fuel cell solution with high activity, high stability and low cost, and has a good application prospect.

The present application relates to the technical field of computer network, and especially relates to a fast forwarding method and system of network data packet of zero-patch kernel integration. The method comprises the following steps: registering a hook function at a key node of data packet processing, obtaining a registration custom processing function, expanding a connection tracking structure in a Linux kernel connection tracking system, and adding a custom field to store a fast forwarding state; constructing a fast NAT connection table; when the data packet reaches the registration custom processing function, calculating a hash value of the data packet, searching for a corresponding connection node in the fast NAT connection table through the hash value; if the valid connection node is found, updating header information of the data packet and sending the data packet to a target interface; otherwise, marking connection tracking information and making the data packet go through a regular Netfilter processing flow. The present application can solve the performance bottleneck problem caused by the dependence of the Netfilter complete flow in the traditional Linux kernel network forwarding scheme.

The invention relates to a carbon fiber and potassium titanate whisker synergistically enhanced wear-resistant thermotropic liquid crystal polymer composite material and a preparation method thereof, and belongs to the technical field of material preparation. The composite material is formed by compounding a lubricant, carbon fibers (CF), potassium titanate whiskers (PTW) and a thermotropic liquid crystal polymer (TLCP), wherein the total addition amount of the CF and the PTW is 25wt% of the TLCP; and the lubricant is PTFE and graphite. The method comprises the following steps: 1) preparing a thermotropic liquid crystal polymer by a one-pot method; (2) carrying out surface modification on the potassium titanate whiskers by utilizing a silane coupling agent; and 3) dispersing the carbon fiber, the potassium titanate whisker / modified potassium titanate whisker and a lubricant in the thermotropic liquid crystal polymer to form a uniform carbon fiber / potassium titanate whisker / thermotropic liquid crystal polymer dispersion system. According to the invention, the dispersibility and compatibility of the potassium titanate whisker in a matrix can be obviously improved, the mechanical property and wear resistance of the thermotropic liquid crystal polymer are enhanced, the preparation process is simple, the production cost is low, the reaction condition is mild, batch production can be realized, and the special requirements of multiple fields such as aerospace and civil industry on resin materials can be met.

The invention discloses a manufacturing method of an extreme environment resistant steel rail, and belongs to the technical field of steel rail production. According to the method, Cr-V-Cu composite microalloying U63MnCrCuV serves as a target steel grade, and performance breakthrough is achieved through coordinated regulation and control of the four-stage whole-process technology of precise steelmaking quality control, optimized rolling shaping, constant-air-pressure heat treatment strength and surface heat treatment efficiency improvement. The method aims at solving the technical problems that the steel rail is insufficient in low-temperature toughness, corrosion resistance and wear resistance synergism in an extreme environment, and the production stability is poor in a low-temperature season. The method is suitable for laying in extreme environments such as Sichuan-Tibet railways, and significantly prolongs the service life of steel rails.

The application discloses a PLA copolymer polycarbonate biaxial stretching film and a preparation method thereof, and belongs to the technical field of high polymer materials. The film is prepared from 100 parts of PLA copolymer polycarbonate, 0.3-0.6 parts of a chain extender, 0.5-1.0 parts of an anti-hydrolysis agent, 0.1-0.2 parts of a lubricant, 0.1-0.3 parts of a primary antioxidant and 0.2-0.4 parts of a secondary antioxidant through melt extrusion, biaxial stretching and heat setting. The film has high heat resistance, high light transmittance, low haze and excellent processing stability through unique molecular structure design, synergistic system of additives and fine biaxial stretching process, the tensile strength retention rate of the film at 80 DEG C is greater than or equal to 80%, and the film can be used in the fields of optics, high-barrier packaging and industry.

The invention discloses a two-dimensional material-doped PbSe heterojunction-based photoelectric detector and a preparation method thereof, and belongs to the technical field of semiconductor photoelectric detection, and the preparation method comprises the following steps: S1, preparing a bottom electrode on a substrate; s2, forming a two-dimensional material channel layer on the bottom electrode; s3, a MoCl5-doped PbSe thin film is deposited on the two-dimensional material channel layer, an absorption layer is formed, the doping proportion of MoCl5 is controlled to range from 0.5 mol% to 2 mol%, and the proportion of Mo atoms to Cl atoms in the PbSe-doped absorption layer is controlled to range from 1: 1 to 1: 2; s4, depositing an intrinsic high-resistance PbSe thin film on the doped PbSe absorption layer to form a barrier layer; and S5, preparing a top electrode on the barrier layer. The high-mobility two-dimensional material channel, the precisely doped PbSe absorption layer and the intrinsic PbSe barrier layer are integrated into the sandwich type BIB structure, and efficient separation and transportation of photon-generated carriers and effective suppression of dark current are achieved at the same time through the synergistic effect of the heterojunction built-in electric field and the barrier layer.

The invention relates to an underwater sound audio denoising method based on a Conformer model. The method comprises the following steps: collecting and processing data; according to the collected and processed data, constructing a codec model based on a conformer, and training the codec model; and inputting the processed data into the trained codec model based on the conformer to obtain a de-noised clean underwater sound audio, aiming at the complex characteristic that the broadband and narrow-band noise in the underwater sound signal is interleaved, the convolution and attention are creatively applied to the noise reduction of the underwater sound signal, the Conformer in the voice recognition field is migrated to the underwater sound field, and the noise reduction of the underwater sound signal is realized. The algorithm provided by the invention greatly improves signals with different signal-to-noise ratios, can still maintain stable noise reduction performance in a low signal-to-noise ratio scene, and breaks through the performance bottleneck of a traditional method in the low signal-to-noise ratio scene.

The invention relates to a storage and calculation integrated neural network processor based on three-dimensional integration and substrate interconnection and a control method thereof, and the processor comprises an off-chip volatile storage chip which is connected with a logic chip and is used for carrying out information interaction with the logic chip; the off-chip nonvolatile storage chip is connected with the logic chip and is used for carrying out information interaction with the logic chip; the logic chip is configured to realize any combination of the following functions: executing a calculation task, performing data caching and realizing information interaction; the off-chip nonvolatile memory chip and the logic chip are integrated to form a three-dimensional integrated module by applying a three-dimensional stacking technology, and the three-dimensional integrated module and the off-chip volatile memory chip are integrated through a substrate interconnection technology; in the vertical direction, the logic chip is located below the off-chip nonvolatile storage chip, and the logic chip is bonded with the off-chip nonvolatile storage chip through the back face, so that the high heat dissipation requirements of the off-chip nonvolatile storage chip and the logic chip are met.

The invention belongs to the technical field of nuclear magnetic resonance logging, and discloses a nuclear magnetic resonance logging instrument probe. Comprising a center support, a magnet assembly, a magnet protection shell, a magnetic core assembly and a magnetic core protection shell. The central support is provided with a mounting shaft and radial limiting parts at two ends. The magnet assembly is mounted on the mounting shaft, is positioned between the two limiting parts, comprises a first semi-cylinder group formed by splicing a plurality of small magnets on the upper side and a second semi-cylinder group formed by splicing a plurality of large magnets on the lower side, and is used for generating a radially enhanced static magnetic field. And the magnet protection shell is formed by buckling an upper shell and a lower shell which respectively cover the first semi-cylinder group and the second semi-cylinder group. The arc-shaped magnetic core assembly is attached to the periphery of the upper shell to guide a magnetic circuit and enhance a radio frequency magnetic field, and the outer side of the arc-shaped magnetic core assembly is coated with a magnetic core protection shell connected with the magnet protection shell. The magnetizing directions of the large and small magnets are tangentially arranged along the circumference of the probe; and the lower shell is made of a magnetic conductive material to form a magnetic shielding structure for shielding a stray magnetic field at the bottom. The probe can significantly increase the detection distance.

The invention provides a vhost controller management method, device and equipment and a readable storage medium, and the method comprises the steps: responding to a vhost target process starting event, creating a plurality of reactor threads, and binding each reactor thread to a different calculation unit; the method comprises the following steps of: configuring a schedulable working thread of each reactor thread, and respectively configuring an independent storage engine client instance for each working thread; according to virtual annular queues vRing which are configured in a virtual machine in advance and correspond to the number of the working threads, different vRing is configured for each working thread; and respectively creating a polling task on each working thread. Through the technical scheme of the specification, a plurality of reactor threads and corresponding working threads are created for a single vHost controller, and a plurality of vRings of a virtual machine are respectively bound to different working threads, so that full utilization of a plurality of computing unit cores by the single controller is realized.

This invention relates to the field of passivation solution technology, and particularly to a low-temperature, fast-curing, self-healing chromium-free passivation solution, its preparation method, and its application. The passivation solution comprises 48%-58% modified waterborne acrylic resin emulsion, 1.8%-2.5% silane coupling agent, 7%-11% double-modified nano-SiO2, 1.2%-1.5% ammonium zirconium carbonate, 0.3%-0.5% phosphomolybdic acid, 0.2%-0.4% imidazole accelerator, 0.2%-0.4% wetting and dispersing agent, 0.1%-0.3% defoamer, and deionized water to bring the total to 100%. The modified waterborne acrylic resin emulsion contains diacetyl groups, phosphonic acid groups, and hydrazide groups. By rationally selecting and compounding the passivation components, the passivation solution achieves rapid curing into a film at low temperatures, exhibiting dynamic self-healing function, excellent corrosion resistance, and adhesion. Furthermore, the preparation process is simple, and the production cost is controllable.

The present application belongs to the technical field of computer vision and remote sensing image processing, and provides a kind of aerial point target detection method and system based on high-frequency perception and dynamic scaling loss, comprising: receiving aerial image, extracting multi-scale spatial features containing high-frequency details using high-resolution Mamba backbone network;The multi-scale spatial features are fused by PANet neck network to generate a multi-scale fusion feature map;The multi-scale fusion feature map is enhanced using a high-frequency refocusing module HFRM;The enhanced multi-scale fusion feature map is used as input to predict the position and category of the target through decoupling detection head;In the model training stage, dynamic scaling loss function is used for model optimization, and the loss function dynamically adjusts the weights of classification loss and regression loss according to the target real area area.The present application effectively solves the detection problem of point targets in aerial images caused by semantic collapse, high-frequency information loss and unstable training.

The invention relates to the technical field of network communication, in particular to a software-defined networking method and device based on agency, the initiative of connection is transferred to an agency node closer to a switch, the path and time of connection establishment are shortened, the method and device are especially suitable for scenes with a large number of switches and topology dynamic changes, and the efficiency is improved. According to the method, the security genes of the master and slave control channels are inherited and lightweight adaptation is carried out, and the performance bottleneck and security shortages of the traditional SDN southbound channel are fundamentally solved through the original design of intelligent event filtering, multi-path processing and the like, so that a solid end guarantee is provided for stable and efficient operation of the whole hierarchical control architecture.