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29results about How to "Realize precise control" patented technology

Network construction type energy storage converter control method and device and related products

PendingCN122000997AAccurately matches dynamic operating characteristicsStable grid-connected operationSingle network parallel feeding arrangementsAc network load balancingVirtual synchronous generatorLoop control
The invention relates to the technical field of electric power systems, and discloses a network construction type energy storage converter control method and device and a related product. The method comprises the following steps: constructing a corresponding MPC controller based on a pre-constructed discrete state space equation of a to-be-controlled network-building type energy storage converter; the MPC controller comprises a cost function and a constraint condition; the cost function comprises a state error term; performing optimization solution on the MPC controller by adopting a preset optimization algorithm to obtain an active power reference value and a reactive power reference value when the cost function reaches the minimum; and utilizing a virtual synchronous generator module and a voltage and current double closed-loop control module to generate a pulse width modulation signal based on the active power reference value and the reactive power reference value so as to control the target network-building type energy storage converter. According to the invention, the problems of current impact, power angle instability and the like which are easy to occur in the grid-forming type energy storage converter during voltage drop can be effectively solved, and stable grid-connected operation of the grid-forming type energy storage converter under the working condition of power grid voltage drop is ensured.
Owner:SHENYANG UNIVERSITY OF TECHNOLOGY

Household electrical appliance

The invention discloses a household appliance, which comprises a shell, a motor and a controller, and is characterized in that the motor is arranged in the shell and is used for operating according to alternating current input voltage; the controller is configured to detect motor parameters of the motor in real time when the motor operates; determining a q-axis voltage compensation value of the motor based on the motor parameters of the motor; adjusting the q-axis voltage value of the motor according to the q-axis voltage compensation value to adjust the voltage value of the motor to the target voltage value, thereby reducing the low-frequency pulsation of the motor, achieving the precise regulation and control of the motor, facilitating the improvement of the stability of the motor, prolonging the service life of the motor, and improving the overall performance of the electric equipment and the user experience.
Owner:HISENSE (SHANDONG) AIR CONDITIONING CO LTD

Reinforcement learning intelligent traffic signal control method and system based on state-driven retrieval enhancement

The invention discloses a reinforcement learning intelligent traffic signal control method and system based on state-driven retrieval enhancement. The method comprises the steps of collecting real-time traffic flow state information of a traffic environment and constructing a global traffic state vector, retrieving a knowledge base to obtain related knowledge fragments and performing weighted aggregation to obtain a comprehensive knowledge representation vector, and constructing a fusion decision model fusing retrieval enhancement and a Markov decision mechanism, training convergence of the strategy network is completed after the enhanced state vector is generated, traffic signal control is achieved based on the converged strategy network, the generalization adaptation capacity, the anti-interference capacity and the operation stability of the signal control strategy to various traffic scenes are improved, random fluctuation of traffic flow and sudden traffic conditions can be effectively coped with, and the traffic signal control method is suitable for being popularized and applied. Through knowledge retrieval and prior knowledge fusion, traceability and interpretability of a control decision are realized, the efficiency of traffic signal control is effectively improved, the occurrence rate of intersection traffic delay and congestion is reduced, and reliable support is provided for intelligent collaborative management and control of a road network.
Owner:CENT SOUTH UNIV

A self-supporting, high-efficiency OER Mo / Ru-Ni / NF electrocatalyst and its preparation method

PendingCN122303941AInnovation in synthetic methodsSimple processPtru catalystElectrolysis
This invention discloses a self-supporting, high-efficiency OER Mo / Ru-Ni / NF electrocatalyst and its preparation method, belonging to the field of electrocatalytic materials technology. Addressing the problems of insufficient exposure of active sites, poor conductivity, and high interfacial resistance due to the need for binders in existing catalysts, this invention uses nickel foam as a substrate and employs a two-step electrodeposition method combined with a calcination process to prepare a composite catalyst with a cauliflower-like porous structure. This material optimizes the electronic structure and oxygen intermediate adsorption energy by introducing strongly electron-deficient Mo centers to modify the Ru-Ni heterojunction interface; the unique self-supporting porous structure increases the active area, promoting mass transfer and electron transport. This catalyst requires no binder, exhibits low overpotential, a small Tafel slope, and excellent long-term stability, significantly improving the catalytic performance of the oxygen evolution reaction (OER) and making it suitable for high-efficiency water electrolysis for hydrogen production.
Owner:LIAOCHENG UNIV

Parallel alternating operation method of reverse osmosis water purification system and water purification equipment

PendingCN122520180AAvoid rapid decayavoid wasting
The application provides a kind of parallel alternate operation method of reverse osmosis water purification system and water purification equipment, and relates to water treatment technical field, comprising: according to each initial single water production flow calculation can satisfy target water production flow the minimum number of reverse osmosis membrane module as current operation number;Control each branch reverse osmosis membrane module of current operation number forms each operation combination alternately to carry out water supply, in water supply process, real-time detection reverse osmosis system real-time total water production flow, in current operation number is not equal to the total number of reverse osmosis membrane module and real-time total water production flow is lower than the first total water production flow threshold value, current operation number is added one, and in current operation number is not equal to the total number and real-time total water production flow continues to be lower than the second total water production flow threshold value, give reverse osmosis membrane module replacement prompt.The beneficial effect is to fully exploit the remaining use potential of each reverse osmosis membrane, effectively prolongs the actual service cycle of single reverse osmosis membrane module.
Owner:ZHEJIANG QINYUAN WATER TREATMENT S T

Silicon-copper co-oxide catalyst for enhancing CO2 electroreduction as well as preparation and application of silicon-copper co-oxide catalyst

The invention relates to a silicon-copper co-oxide catalyst for strengthening CO2 electroreduction and preparation and application of the silicon-copper co-oxide catalyst for strengthening CO2 electroreduction, and the preparation method comprises the following steps: dissolving soluble copper salt and tetraethoxysilane in ethanol to form a uniformly mixed precursor solution; the precursor solution is conveyed to a spraying nozzle through a sample injection pump, the spraying nozzle atomizes the precursor solution into aerosol through atomization gas and sprays the aerosol into a combustion chamber, the aerosol is combusted under the high-temperature condition of the combustion chamber, evaporation, pyrolysis and oxidation reactions are generated, and nano-particles are generated; and putting the nano particles into a quenching device, and rapidly cooling to obtain a nano Si-Cu-Ox co-oxide, namely the catalyst. When the catalyst is applied to the process of preparing ethylene through CO2 electroreduction, Cu < + > active species generated in the electroreduction process can be stabilized and prevented from being reduced, so that C-C coupling of an intermediate product is strengthened, and the selectivity of an ethylene product is remarkably improved.
Owner:SOUTHEAST UNIV

Photo-thermal activated epoxy shape memory polymer as well as preparation method and application thereof

The invention provides a photo-thermal activated epoxy shape memory polymer and a preparation method thereof, and belongs to the technical field of functional materials. The preparation method comprises the following steps: uniformly dispersing carboxylated multi-walled carbon nanotubes in a system containing epoxy resin and an organic solvent according to a certain addition ratio, adding a curing agent, mixing, pouring, and curing to obtain the shape memory polymer. The polymer has high glass transition temperature, high tensile strength and good toughness, and can realize rapid shape recovery under the irradiation of near-infrared light. The invention also provides a method for driving the shape memory polymer to recover the shape, and the shape of the deformed shape memory polymer can be recovered only in 30-100 seconds under the action of a thermal activation mode or an infrared light irradiation activation mode. The problems that a traditional epoxy shape memory polymer is single in driving mode, and mechanical performance and driving performance are difficult to consider at the same time are solved, and the method has wide application prospects in the fields of intelligent driving and precise control.
Owner:WUHAN RES INST OF MATERIALS PROTECTION

A comprehensive automatic control system for a boiler

The application discloses a boiler comprehensive automatic control system, which comprises a monitoring unit for monitoring water vapor pressure, water vapor flow, fuel concentration and oxygen concentration in a boiler; a fuel quantity adjusting unit for adjusting the fuel quantity entering into the boiler according to the water vapor pressure in the boiler; an air quantity adjusting unit for adjusting the air quantity entering into the boiler according to the oxygen concentration entering into the boiler; a water level adjusting unit for adjusting the water level in the boiler according to the water vapor flow in the boiler; and a control unit for automatically controlling the working states of the fuel quantity adjusting unit, the air quantity adjusting unit and the water level adjusting unit according to the data detected by the monitoring unit. The application realizes accurate regulation and control of multiple units by real-time monitoring of various parameter conditions in the boiler through the monitoring unit and accurate control of the working of each unit through the control unit, so that the combustion efficiency of the boiler is greatly improved, and safe, stable, environment-friendly and economic operation of the boiler is ensured.
Owner:HUANENG CHAOHU POWER GENERATION CO LTD

Low-cost high-strength aluminum-lithium alloy for space cabin and preparation method thereof

PendingCN122256773AExcellent strength-plasticity matchingbreak dependenciesCeriumLanthanum
The application discloses a low-cost high-strength aluminum-lithium alloy for a space cabin body and a preparation method thereof, and belongs to the technical field of aluminum-lithium alloys.The aluminum-lithium alloy comprises the following components in mass fraction: 91.5-94.5 parts of aluminum, 3.9-4.2 parts of copper, 1.0-1.5 parts of lithium, 0.2-1.0 parts of magnesium, 0.2-0.4 parts of silver, 0.3-0.8 parts of zinc, 0.10-0.12 parts of zirconium and 0.15-0.25 parts of mixed rare earth; the mixed rare earth is a mixed rare earth of cerium and lanthanum, and the mass ratio of cerium to lanthanum is (1.5-2.5):1; the total mass of metal impurities in the aluminum-lithium alloy is not more than 0.15 parts, and the single metal impurity is not more than 0.05 parts; through multi-component micro-alloying design and a precise controllable thermal mechanical treatment process, the application solves the technical problems that the existing aluminum-lithium alloy is high in cost due to the dependence on high-content noble metals and is anisotropic in mechanical properties due to strong deformation texture, and provides an ideal material which is excellent in comprehensive performance and economically feasible for a space cabin structure.
Owner:GUIZHOU UNIV

Potato-tower-shaped nanofiber as well as preparation method and application thereof

PendingCN121760088Afully exposedRegulating growth orientationComponent separationFibre typesFiberPolymer science
The invention provides a potato-tower-shaped nanofiber as well as a preparation method and application thereof, and belongs to the technical field of solid-phase microextraction. The preparation method of the potato-tower-shaped nanofiber comprises the following steps: mixing and dissolving a fiber-forming polymer, an amino precursor, a spinning aid and a solvent I to prepare an electrostatic spinning solution; preparing nanofibers by using an electrostatic spinning technology; the preparation method comprises the following steps: soaking nanofibers in water, and washing and drying after soaking; dissolving an aldehyde group precursor and a template agent into a solvent II to obtain a mixed solution, dipping the nanofiber into the mixed solution, adding a catalyst, and then performing solvothermal reaction to obtain the potato-tower-shaped nanofiber. A large number of uniformly-distributed and orderly-arranged sheet structures are inlaid on the surface of the nanofiber, and the whole fiber is in a potato tower shape; the potato-tower-shaped nanofiber has excellent extraction performance on a micro-plastic loaded plasticizer. The potato-tower-shaped nanofiber disclosed by the invention shows good application potential in the fields of sample pretreatment and solid-phase microextraction.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY

Microfluidic microcarrier preparation device, microcarrier surface modification method and application of microcarrier surface modification method in stem cell large-scale amplification and stemness maintenance

PendingCN121950505AImplement programmableRealize precise controlAnimal cellsBioreactor/fermenter combinationsUV curingCapillary Tubing
The invention belongs to the field of biological materials and cell manufacturing, and relates to a micro-fluidic micro-carrier preparation device, a micro-carrier surface modification method and application of the micro-fluidic micro-carrier preparation device in stem cell large-scale amplification and stemness maintenance. The device comprises a dispersed phase injector for injecting a dispersed phase solution; the continuous phase injector is used for injecting a continuous phase solution; the micro-fluidic chip comprises a bottom plate, a micro-channel, an upstream capillary tube, a downstream capillary tube, a micro-carrier collector and a UV curing lamp; the upstream capillary tube is embedded at the front end of the micro-channel and is connected with the dispersed phase injector and the continuous phase injector; a needle head of the continuous phase injector is fixed at a joint of the upstream capillary tube and the micro-channel; the downstream capillary tube is embedded at the tail end of the micro-channel, and a liquid inlet of the downstream capillary tube and a liquid outlet of the upstream capillary tube are oppositely arranged and located on the same central axis; and the microcarrier collector is connected with the tail end of the downstream capillary tube through a connecting tube. According to the invention, through a unique microfluidic flow control focusing structure, the precise and controllable production of the microcarrier size is realized.
Owner:XI AN JIAOTONG UNIV

Mechanical finger, control method, device and equipment of mechanical finger, and medium

ActiveCN116922420BImplement post-positioningRealize precise controlGripping headsProximal phalanxDistal phalange
The application discloses a mechanical finger, a control method, device and equipment of the mechanical finger and a medium, and relates to the field of robots.The mechanical finger 100 comprises a proximal phalanx 10, a distal phalanx 20 and a base 30; the bottom of the proximal phalanx 10 is movably connected with the top of the base 30, and the bottom of the distal phalanx 20 is movably sleeved on the top of the proximal phalanx 10; a proximal phalanx motor 11 and a distal phalanx motor 21 are fixedly arranged in the base 30, the proximal phalanx 10 is in transmission connection with the proximal phalanx motor 11, and the distal phalanx 20 is in transmission connection with the distal phalanx motor 21.In this embodiment, the proximal phalanx motor 11 and the distal phalanx motor 21 are arranged in the base 30, so that the sizes of the proximal phalanx 10 and the distal phalanx 20 tend to the actual sizes of a human hand, and thus the precise control of the mechanical finger 100 is realized.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Virtual item interaction method and device, equipment, medium and product

PendingCN121846682ARealize precise controlIncrease transaction costsVideo gamesSoftware engineeringFinancial transaction
The invention relates to the technical field of computers, and discloses a virtual item interaction method and device, equipment, a medium and a product, and the method comprises the steps: determining a first resource amount corresponding to a first virtual item in response to a transaction registration operation of the first virtual character for the to-be-transacted first virtual item; in response to a first transaction event between the first virtual character and the second virtual character for the first virtual item, determining a second resource quantity corresponding to the first transaction event; the second resource quantity is the residual resource quantity obtained by subtracting the additional resource quantity determined based on the target proportion from the first resource quantity; the target proportion is a proportion determined based on a game contribution index of the first virtual character and / or the second virtual character; and executing the first transaction event. According to the application, additional resources additionally needed in the transaction process can be dynamically adjusted, and accurate regulation and control of transaction results of different virtual roles are realized.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

Image generation method, apparatus, device, medium, and product

PendingCN122597573ASolve the outputsolve needs
The present application provides an image generation method, device, equipment, medium and product, and relates to the technical field of computer processing. The method comprises the following steps: obtaining second content based on a data unit and first content, wherein the first content is used at least for indicating first planning layout information of a first media element, and the second content is used for representing spatial position information of the first media element; and obtaining third content based on the second content, wherein the third content is provided by a first machine learning model and is used for indicating an output image corresponding to the first content. The method solves the problem that the output result of the machine learning model is not adapted to the demand when an image is generated or edited, and improves the accuracy of image generation or image editing.
Owner:BEIJING ZITIAO NETWORK TECH CO LTD +1

Bacillus licheniformis SXZY-02 and application thereof

PendingCN122256169AGood effectFacilitate directed degradationTobacco preparationBacteriaBiotechnologyBacillus licheniformis
The application belongs to the technical field of biological fermentation, and relates to a bacillus licheniformis SXZY-02 and application thereof, and comprises the following steps: a bacillus licheniformis (Bacillus licheniformis) SXZY-02 is separated from the surface of tobacco leaves, Lysinibacillus macroides ) and the strain preservation number is CCTCC NO:M 2025152; the bacillus licheniformis SXZY-02 is fermented to obtain a biological agent containing the bacillus licheniformis SXZY-02, and after fermentation optimization, the lipase activity is 8.99 U / mL; the biological agent containing the bacillus licheniformis SXZY-02 is applied to tobacco shred fermentation, fat is decomposed into free fatty acid, tobacco aroma quality and alcohol degree are effectively improved, and irritation is reduced. The technology provides a green and environment-friendly solution for tobacco quality upgrading, and meets the high-quality development direction of the industry.
Owner:CHINA TOBACCO SHAANXI IND

Spinning thread processing equipment

ActiveCN224199537UAffects temperatureAffect humidityHollow filament manufactureWet spinning methodsYarnThermodynamics
The utility model discloses spinning thread processing equipment, which relates to the technical field of spinning thread processing, and comprises a coagulating basin, an air section, a water inlet pipe, a water outlet pipe and a water outlet pipe, the air inlet pipeline is used for conveying air with set temperature and humidity to the air section; the spinning nozzle is arranged at the upper end part of the coagulating basin; the output end of the circulating pump is connected with the upper end part of the coagulating tank, and the input end of the circulating pump is connected with the lower end part of the coagulating tank and the water injection pipeline. The spinning yarn processing equipment solves the technical problems that the temperature and humidity of the air section are difficult to control, so that a phase separation structure of a hollow fiber membrane yarn primary body is not uniform, and the performance of the hollow fiber membrane yarn is unstable, and the temperature and humidity of the air section are always kept stable by inputting gas with set temperature and humidity into the air section, so that the performance of the hollow fiber membrane yarn is improved. And it is ensured that phase separation of the hollow fiber membrane filament primary body starts in the solidification liquid, it is ensured that the radial humidity and temperature of the hollow fiber membrane filaments are uniform, and the forming quality of the hollow fiber membrane filaments is improved.
Owner:HUNAN KANPUR ENVIRONMENTAL PROTECTION TECH CO LTD

Planning design verification method for electrolytic manganese hydrogen production-chlor-alkali chemical coupling system

PendingCN121811992AAccurately reflect statusAccurate reflection of qualityPhotography auxillary processesElectrolysis componentsHydrogen puritySystem verification
The invention relates to the technical field of chemical engineering system optimization, and discloses a planning design verification method for an electrolytic manganese hydrogen production-chlor-alkali chemical engineering coupling system. The method comprises the following steps: acquiring first real-time operation parameters such as current density and cell pressure of an electrolytic manganese hydrogen production unit, and second real-time operation parameters such as alkali liquor concentration and hydrogen purity of a chlor-alkali chemical unit; screening a matching operation section matched with the current hydrogen production fluctuation characteristic from the historical coupling operation data; analyzing the bath pressure change on the time sequence of the matched operation section to determine a coupling response action point, and calculating the coupling delay amount from the starting point to the action point; then comparing the current density before and after the coupling response action point with the change trend of the hydrogen purity data sequence, and determining a parameter matching degree; determining a coupling weight coefficient by combining the coupling delay amount, the parameter matching degree and the fluctuation characteristic difference; and inputting the generated dynamic efficiency coefficient and the first real-time operation parameter into a system verification controller, and outputting a system adjustment instruction, so that accurate planning verification of the coupling system can be realized.
Owner:WUYI UNIV

Planting method of orchid plants

The invention relates to the technical field of cymbidium plant cultivation, in particular to a cymbidium plant planting method, which comprises the following steps of: acquiring an explant, analyzing an initial projection area and an average gray value of the explant through an image, dividing the explant into a superior body, a potential body, an active body and a lagging body by using a median, and analyzing an optimal physical stimulation scheme of each category after verifying a classification effect, the method comprises the following steps: carrying out preliminary cultivation based on a scheme, monitoring an area growth rate and a gray level change rate, and dynamically adjusting parameters; transplanting tissue culture seedlings to a matrix; evaluating maturity by calculating a plumpness index of a pseudobulb; calculating the index based on a maximum diameter, a height and a hardness value and comparing the index with a threshold value; according to the method, vernalization environment effect values are calculated day by day, vernalization induction is completed after an accumulated value reaches a threshold value, finally, temperature-returning flower forcing treatment is conducted, the temperature-returning flower forcing treatment comprises gradual temperature rising and high-phosphorus potassium fertilizer application, through scientific classification and personalized management, the protocorm induction efficiency and the flowering rate are improved, and efficient and stable cultivation of orchid plants is achieved.
Owner:VEGETABLE RES INST OF TIBET ACADEMY OF AGRI & ANIMAL HUSBANDRY SCI

Modified structure regulator and application

PendingCN121930201AFinely tuned stabilityFinely tuned selectivityOrganic chemistryPolymer scienceButadiene Dioxide
The invention belongs to the technical field of high polymer materials, and particularly relates to a modified structure regulator and application. The structural formula of the modified structure regulator is as shown in formula (I), the modified structure regulator is applied to preparation of solution polymerized styrene-butadiene rubber to realize accurate regulation and control of a microstructure, and on the basis of the total mass of a structural unit from a conjugated diene monomer in a single molecular chain, the content of a vinyl structure is 25-40%, the content of trans-1, 4-butadienyl is 35-45%, and the content of cis-1, 4-butadienyl is 35-45%. And the content of 1, 4-butadienyl is 15-40%, so that the rolling resistance of the rubber is obviously reduced on the premise of not sacrificing or even improving the wet skid resistance and wear resistance.
Owner:WANHUA CHEM GRP CO LTD

A K-band wave-to-wave conversion structure

ActiveCN224367108UReduce Impedance MismatchChanging multi-section impedance converter modeWaveguide type devices
The utility model discloses a K waveband wave same conversion structure relates to microwave communication and radar technical field. The K waveband wave same conversion structure includes integrated metal - dielectric composite cavity, and the cavity has the top cover plate, the intermediate layer and the bottom plate, the top cover plate inlay ceramic sheet array of dielectric constant gradient, the intermediate layer includes the metal grid of suspension gradient, and the grid density is increasing along the propagation direction, and the bottom plate is provided as the metal reflection plate of the bellowed convex projection. The K waveband wave same conversion structure provided by the utility model is used for solving the narrow bandwidth, high loss and volume limit problem in the prior art.
Owner:NANJING RUIDA ELECTRONIC TECH CO LTD

Method and system for continuous playing of short videos based on multi-modal data

The application discloses a kind of short video continuous playing method and system based on multi-modal data, and the application relates to the technical field of short video, corresponding multi-modal data is constructed according to visual flow, audio stream and text flow, and key video segment is determined in the matching process of hobby watching feature and multi-modal data, corresponding emotional characteristics are determined based on each key video segment and corresponding user viewing behavior, corresponding continuous playing instruction is determined according to emotional characteristics, key video segment corresponding short video and the preset playing order of multiple short videos, the accuracy of continuous playing instruction is improved, different dimensions are fully considered, and the primary operation instruction is determined according to the multi-dimensional behavior characteristics;In the same time dimension, the playing picture of the continuous playing event of the primary operation instruction and short video is matched, to determine the corresponding matching level, the final operation instruction is determined according to the matching level and the viewing history of user, and the accurate regulation of short video is realized.
Owner:SHANGHAI FULEIDE INFORMATION TECH CO LTD +1

Quantitative coal mining control system for preventing gas overrun in coal mine

ActiveCN116677378BReal-time forecast of outflowEnsure concentration safety conditionsMining devicesSlitting machinesMining engineeringControl system
This invention discloses a quantitative coal mining control system for preventing excessive gas levels in coal mines, including a gas volume fraction monitoring probe, a safety early warning and monitoring module, and a gas exceeding limit quantitative control module. The gas volume fraction monitoring probe includes a monitoring probe T1 located at the end of the transport roadway near the coal mining face, a monitoring probe T2 located at the coal mining face, a monitoring probe T3 located at the end of the return airway near the coal mining face, a monitoring probe T4 located at the end of the return airway away from the coal mining face, and monitoring probes T1, T2, T3, and T4 are respectively connected to the safety early warning and monitoring module and the gas exceeding limit quantitative control module.
Owner:ZHENGZHOU PUZE ENERGY TECH CO LTD

Multiphysics Simulation Method and System for Pump Bridge Perforation Operation

PendingCN122088369AEnable safe pumpingRealize dynamic quantitative correctionDesign optimisation/simulation3D modellingAnalogue computationMechanical models
This invention provides a multiphysics simulation method and system for pump-bridge perforation operations, relating to the field of data processing technology. The method includes: Step 1, establishing a three-dimensional wellbore trajectory model including the geometric parameters of the casing deformation section, a mechanical model of the tubing string / tool ​​string, and a hydrodynamic model based on the target well's logging and completion data; Step 2, setting the initial pumping displacement, cable lowering speed, wellhead pressure, wellbore temperature distribution, and tubing string-wellwall friction contact boundary conditions according to the operation design parameters; Step 3, performing a global multiphysics coupled transient simulation calculation based on the initial multiphysics model and boundary conditions to obtain the global transient simulation results including the tubing string's motion trajectory. This invention improves the accuracy of multiphysics simulation in pump-bridge perforation operations, optimizes operation parameters, provides guidance for construction, and enables quantitative classification and early warning of construction risks, thereby reducing operational risks and ensuring safe and efficient operation.
Owner:XIAN MOKO XINGYE PETROLEUM ENG TECH CO LTD

Safety control method and device for source file copying

PendingCN121859364ARealize precise controlRealize full-process safety managementDigital data protectionInternal/peripheral component protectionInformation repositoryData pack
The invention discloses a security control method and device for source file copying, and the method comprises the steps: receiving a copying request data packet from a terminal, and obtaining the historical copying behavior feature data of a user; calculating a behavior deviation degree based on the attribute information, the timestamp, the hardware identifier and the historical copy behavior feature data; retrieving in a security risk information base based on the hardware identifier; checking whether the target USB flash disk has a security risk or not based on the retrieval result; when the target USB flash disk does not have the security risk, analyzing the attribute information of the source file to be copied to obtain the type feature of the source file to be copied; matching the type characteristics with a predefined file risk rule base, and outputting a file risk analysis result; according to the behavior deviation degree and the file risk analysis result, generating a comprehensive security index by adopting a weighted fusion algorithm; and selecting a file copying action according to the comprehensive security index. According to the method and the system, accurate control and whole-process safety management of copying behaviors are realized.
Owner:CHINA CONSTRUCTION BANK +1

Adaptive anti-disturbance floating wind power foundation structure type and intelligent construction method

The application discloses an adaptive anti-interference floating wind power foundation structure type and an intelligent construction method, and comprises the following steps: collecting multi-dimensional parameters such as wind, wave, flow load, structure geometry and mass distribution through an extreme sea state construction simulation platform; analyzing structure stress transmission and deformation characteristics by using a floating foundation multi-body coupling dynamic model, real-time regulating and controlling the space posture of a machine cabin, a blade and a tower by using a wind turbine unit posture anti-interference control model, and calculating and predicting construction errors such as positioning and docking by using an intelligent construction error compensation prediction algorithm; pre-rehearsing a construction process and optimizing parameters through the simulation platform, and completing the installation of the floating foundation, the hoisting of the wind turbine unit and the docking of the structure according to the optimized scheme. The application forms a collaborative regulation and control system of 'parameter collection-model analysis-error prediction-scheme optimization-construction execution', improves the construction accuracy and stability, and provides reliable technical support for deep-sea wind power structure construction.
Owner:环球海洋工程(天津)有限公司 +3

Cold heading forming method of titanium alloy high-pressure oil pipe joint

ActiveCN122274065Bquality improvementRealize precise control
The present application relates to the technical field of titanium forging manufacturing, and particularly relates to a cold upsetting forming method of a titanium alloy high-pressure oil pipe joint, wherein the cold upsetting forming stability of a round corner forming limiting area of a wire rod is determined by determining the round corner forming limiting area of the wire rod to be formed, coating the round corner forming limiting area with a fluorescent substance, obtaining a gray scale change clustering distribution graph of the round corner forming limiting area coated with the fluorescent substance before and after forming, determining a plurality of gray scale change labels, determining whether the cold upsetting forming stability of the round corner forming limiting area is qualified according to the distribution fluctuation of the corresponding sub-area of each gray scale change label, and determining the optimization forming parameters of pulse forging of the round corner forming limiting area of the wire rod according to the curve trend of the distribution representation curve of the corresponding sub-area of each gray scale change label. Furthermore, a quantitative evaluation system and a self-adaptive regulation and control method of the round corner forming process of the oil pipe joint are established, and the quality of the high-quality hydraulic connection component is improved and efficient production is realized.
Owner:TIANJIN SHENGYUANMAO TECH CO LTD

Digital light processing 3D printing light-cured resin composition and printing method and application thereof

PendingCN122277793Asimple recipeavoid oxygen3d printPolymer science
This invention discloses a digital light-processing 3D printing photocurable resin composition, its printing method, and its applications. The digital light-processing 3D printing photocurable resin composition includes a crosslinking agent, a monomer, a chain transfer agent, and a photoacid. By introducing a thioacetal compound as a chain transfer agent, this invention constructs a photoinitiated cationic degenerate chain transfer polymerization system under the action of a photoacid catalyst, achieving active / controllable regulation of the polymerization process. The photocurable resin composition provided by this invention has a simple composition, requires no complex synthetic reagents, and can fundamentally eliminate oxygen inhibition, achieving rapid and high-precision 3D printing with a maximum printing resolution of 57 μm.
Owner:SUZHOU UNIV

Gas-liquid-solid three-state gel soil as well as preparation method and application thereof

PendingCN121844921ASolve the problem of water retentionSolve ventilation contradictionsGrowth substratesCulture mediaPhysical chemistryNutrient solution
The invention discloses gas-liquid-solid three-state gel soil as well as a preparation method and application thereof. The gas-liquid-solid three-state gel soil comprises a solid state, a liquid state and a gas phase which are mutually interwoven to form a three-dimensional continuous structure; the solid phase takes a hydrophilic polymer cross-linked network and hydrophobic porous particles as a solid phase skeleton, the hydrophilic polymer cross-linked network forms a three-dimensional continuous liquid phase channel through a chemical or physical cross-linking effect, and the hydrophobic porous particles are dispersed and anchored in the hydrophilic polymer cross-linked network; the liquid phase is composed of a nutrient solution; the gas phase is composed of internal pores of hydrophobic porous particles and intergranular gaps formed by mutual contact and stacking of the hydrophobic porous particles, and a three-dimensional continuous gas diffusion channel penetrating through the whole soil is formed. The gel soil with an intrinsic gas-liquid-solid three-state continuous structure is provided by constructing a continuous gas phase and continuous liquid phase double-network structure, and the problem that the water-retaining property and the air permeability in a soilless culture substrate cannot be synergistically optimized is fundamentally solved.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Cold heading forming method of titanium alloy high-pressure oil pipe joint

PendingCN122274065Aquality improvementRealize precise controlWire rodManufacturing technology
This invention relates to the field of titanium forging manufacturing technology, and more particularly to a cold heading method for titanium alloy high-pressure oil pipe joints. The invention involves determining the rounded corner forming restriction area of ​​the wire to be formed, coating this area with a fluorescent material; obtaining a cluster distribution map of the grayscale changes of the coated rounded corner forming restriction area before and after forming to identify several types of grayscale change labels; determining the cold heading stability of the rounded corner forming restriction area based on the distribution fluctuations of the sub-regions corresponding to each type of grayscale change label; and determining the optimized forming parameters for pulse forging of the rounded corner forming restriction area of ​​the wire by analyzing the curve trends of the distribution characterization curves of the sub-regions corresponding to each type of grayscale change label. Furthermore, a quantitative evaluation system and adaptive control method for the rounded corner forming process of the oil pipe joint are established, achieving quality improvement and efficient production of high-quality hydraulic connection components.
Owner:TIANJIN SHENGYUANMAO TECH CO LTD