25results about How to "Excellent stability" patented technology

This invention belongs to the technical field of aircraft manufacturing engineering and intelligent scheduling optimization. It discloses an aircraft final assembly scheduling method and equipment based on an improved genetic algorithm. The steps are as follows: (1) Construct a scheduling model based on process and worker data with the optimization objectives of minimizing the final assembly completion time and minimizing the number of workers involved; (2) Encode the process priority and worker skill slots obtained from the scheduling model using an improved genetic algorithm in the encoding stage, and use the encoding as chromosomes to form an initial population; (3) Perform event-driven decoding on the individuals in the initial population to obtain an initial scheduling scheme; (4) Calculate the fitness value of each chromosome according to the total completion time and the number of workers involved corresponding to the initial scheduling scheme, and screen all chromosomes according to the fitness value to obtain a new population, and then finally obtain the aircraft final assembly scheduling scheme. This invention realizes the collaborative optimization of completion time and the number of workers involved.

The invention discloses a 3D speaking face generation method of emotion controllable VQ-VAE based on hierarchical decoupling. The method specifically comprises the steps of 1, preprocessing a data set; 2, constructing a first-stage model, setting a loss function and training the model; 3, constructing a second-stage model, setting a loss function and training the model; and step 4, constructing a generative model, and generating a 3D speaking face video. According to the method, through the condition decoupling based on VQ-VAE, facial expressions and actions generated by the 3D speaking face generation model based on condition guidance are more accurate and real, and accurate and stable 3D speaking face generation is realized.

The application belongs to the field of cosmetics and specifically discloses a green beryl tea composition with antioxidant and anti-wrinkle effects, a cosmetic and a preparation method thereof.A green beryl tea extract composition with antioxidant and anti-wrinkle effects comprises the following components in parts by weight: green beryl tea extract 2.5-10 parts, aconitum leaf cowpea seed extract 0.75-3.5 parts, and palmitoyl tetrapeptide-7 0.005-0.1 part.In the application, the composition of the green beryl tea extract, the aconitum leaf cowpea seed extract and the palmitoyl tetrapeptide-7 can greatly improve the antioxidant capacity, anti-wrinkle capacity and anti-photoaging capacity of the skin.

This invention discloses a modified bentonite drilling mud, its preparation method, and its application, belonging to the technical field of drilling mud and geotechnical engineering materials. The modified bentonite drilling mud disclosed in this invention, by mass parts, comprises: 100 parts sodium-based bentonite, 0.5 parts anhydrous sodium carbonate, 1-5 parts gum arabic, 0.1-2 parts xanthan gum, and 1000 parts water. The modified bentonite drilling mud disclosed in this invention solves the technical problem that existing drilling muds are unable to simultaneously meet engineering performance requirements, be environmentally friendly, and possess good salt resistance.

The invention discloses an AI (artificial intelligence)-based college book child English applet and a production process thereof, relates to the technical field of education, and particularly relates to an AI-based college book child English applet and a production process thereof. Four functional modules of basic English learning (such as textbook synchronous word retrieval and pronunciation training), professional English learning (such as term library query and specification image recognition and interpretation), auxiliary learning (personalized recommendation) and social learning (learning report sharing, discussion area and group collaboration) are integrated. The manufacturing process sequentially comprises six stages of demand analysis and planning, system architecture design, core module development, technology integration and debugging, system test and optimization, and deployment online and iterative maintenance. The system adopts a cross-platform front-end and micro-service back-end layered architecture, the quality is guaranteed through multi-dimensional testing, stable deployment and continuous iteration are realized through a gray release strategy, and the multi-learning-section personalized English learning requirement is met.

The invention relates to an order process merging workshop scheduling method and system based on operation level constraints. The method comprises the steps of obtaining production data; establishing a mixed integer programming scheduling model taking the minimization of the maximum completion time and the minimization of the assembly time as targets; order combination constraints, process combination constraints and operation level constraints are integrated in the mixed integer programming scheduling model; and an improved grey wolf optimization algorithm is established to solve the mixed integer programming scheduling model, an optimal scheduling scheme is output, the improved grey wolf optimization algorithm combines a double-layer coding scheme of three constraints, a mixed initialization population strategy and an improved hunting mechanism, and a variable neighborhood search and simulated annealing dynamic acceptance mechanism is integrated, so that the optimal scheduling scheme of the hybrid integer programming scheduling model is obtained. Global exploration and local development capabilities are enhanced, so that an optimal scheduling scheme is obtained; and finally outputting the dispatching Gantt chart and issuing and executing. The scheduling problem caused by a complex assembly relation and too long preparation time in multi-variety small-batch production is effectively solved, and the production period is remarkably shortened.

The utility model discloses a kind of power generation systems based on water floating island, belong to wave energy generation field, including floating island, power conversion component, storage tank, impeller and generator set. Power conversion component is installed to floating island, can adopt "rocker arm-connecting rod-piston cylinder" or "push arm-piston cylinder" structure, through inverted conical platform shape floating ball capture wave reciprocating motion conversion into high-pressure fluid;Storage tank is equipped with discharge pressure control valve to realize pressure stabilization, discharge outlet spouts fluid and drives impeller rotation, and then drives generator set to generate electricity. The system can maximize the use of platform space by optimizing the layout of storage tank. The electricity generated meets the needs of floating island, and the surplus electricity can also be transmitted to land. The floating island is a detachable wave floating island with a wave-releasing chamfer at the bottom, and has strong stability. The system is suitable for different wave conditions, with efficient energy conversion, stable power supply, low cost per kilowatt-hour, and no dependence on external power grid. It is suitable for multiple scene applications and has significant practical value and economic benefits.

This application relates to the field of metal material processing technology, and discloses a titanium-steel composite plate, its preparation method, and a ship. The titanium-steel composite plate includes a steel substrate layer, a pure titanium cladding layer, and an alloy layer, wherein the alloy layer is disposed between the steel substrate layer and the pure titanium cladding layer; wherein the alloy layer includes a Fe-intermediate element-Ti ternary alloy layer, and the Fe-intermediate element-Ti ternary alloy layer satisfies the following conditions along the direction from the steel substrate layer to the pure titanium cladding layer: the Fe content gradually decreases, the Ti content gradually increases, and the content of the intermediate element first gradually increases and then gradually decreases; the intermediate element is a transition element in the Fe-Ti system. This composite plate exhibits excellent interface quality, as well as excellent structural stability and corrosion resistance.

This invention proposes an electropolymerized polymer electrolyte, its preparation method, and a lithium battery. The preparation method includes the following steps: S1, mixing an alkali metal salt, an electrolyte solvent, a positive electrode additive, and a polymer monomer to obtain an electrolyte precursor; S2, injecting the electrolyte precursor between the positive and negative electrodes to assemble a battery; S3, subjecting the battery to a pre-cycling process of "constant current charging-constant voltage charging-constant current discharging" to obtain the polymer electrolyte; wherein the polymer monomer includes electropolymerizable cyclosiloxane compounds, and the constant voltage charging voltage is 4.5~4.7V. This invention utilizes electropolymerizable cyclosiloxane compounds to undergo ring-opening polymerization at high voltage, synergistically with positive electrode additives such as lithium difluorooxalate borate, to achieve in-situ construction of a dense and stable polymer electrolyte layer at the high-voltage positive electrode interface. This significantly suppresses solvent oxidation and electrode side reactions, improving the battery's excellent cycle stability and safety even at high voltages.

The invention belongs to the field of pharmaceutical preparations, and particularly relates to a diphenhydramine hydrochloride composition and a preparation method thereof. According to the diphenhydramine hydrochloride injection disclosed by the invention, the pH of the diphenhydramine hydrochloride solution is adjusted by adopting carbon dioxide, and terminal sterilization is performed on the diphenhydramine hydrochloride solution, so that the sterile guarantee level of the diphenhydramine hydrochloride injection is improved, and the clinical use safety is greatly improved.

The invention provides a software-defined low earth orbit satellite network service function chain deployment method, and belongs to the technical field of communication networks. Constructing a low earth orbit satellite network model and a service function chain request model; each service function chain request is defined as one agent; each agent comprises a strategy network, a first value network and a second value network; the strategy network outputs a virtual network function deployment action and a route selection action in stages, and the intelligent agent executes the virtual network function deployment action and the route selection action to perform service function chain deployment; action rewards are calculated according to deployment cost and service delay optimization; action rewards and observation information are stored in an experience playback buffer; and randomly extracting a batch of data from the experience return visit cache to update the value network and the strategy network. The high dynamic topology of the low earth orbit satellite network is effectively processed through time expansion graph modeling. And the reward function and the optimization target associate the deployment cost and the end-to-end delay to realize collaborative optimization of the two.

The application discloses a method and system for improving the power response speed of a laser, which comprises the following steps: receiving a laser control signal sent by an upper computer; splitting the laser control signal into a segment index and an address index, locating a preset basic compensation sub-table according to the segment index, reading a basic code value corresponding to an address in the basic compensation sub-table according to the address index, and correcting the basic code value by using a dynamically updated segmented dynamic correction factor to obtain a laser control voltage code value; converting the laser control voltage code value from a digital control signal into an analog voltage signal, and converting the analog voltage signal into a driving current to control the laser to output a corresponding power.

This disclosure relates to a device debugging method, apparatus, and storage medium. The device debugging method, applied to a first device, includes: establishing a radio frequency communication connection with a second device; sending network configuration information to the second device based on the radio frequency communication connection; the network configuration information being used by the second device to join the local area network (LAN) where the first device is located and triggering the activation of the debugging function; and performing debugging on the second device within the LAN. This method improves device debugging efficiency and operational convenience.

The application discloses a programmable drug release anti-infection and bone formation promoting multifunctional orthopedic internal implant device and a preparation method thereof. The implant is prepared according to the following steps: 1) introducing a titanium nanotube (TNT) structure on the surface of a titanium alloy base by using an anodic oxidation method; 2) sequentially loading an anti-infection component, a bone formation promoting factor and a blood vessel formation promoting factor into the TNT tube by using a vacuum sequential loading process; and 3) finally, coating a poly-tannic acid (PTA) coating on the surface of the material base by using a tannic acid (TA) in-situ self-polymerization technology. The multifunctional bone implant device can sequentially release the anti-infection drug, the blood vessel formation promoting factor and the bone formation promoting factor in the order of the vacuum drug loading, and the modified surface of the device has good drug release and oxidation resistance, so that the bone infection can be efficiently prevented and treated, and the bone repair efficiency is improved.

The invention provides a reciprocating stepping printing control method for eliminating lead screw damping influences, and belongs to the technical field of printing control. The reciprocating stepping printing control method comprises the steps that 1, a lead screw damping characteristic model of a 3D printer is established; 2, the controller collects motion state parameters of the 3D printer in real time; 3, the controller calculates the position deviation and the damping compensation amount of the 3D printer; 4, the controller dynamically adjusts a driving pulse signal of the stepping motor; and 5, the controller conducts self-adaptive correction on the reciprocating motion of the execution component. By introducing a real-time position detection and damping self-adaptive compensation mechanism, precise control over displacement of the execution component is achieved, and the 3D printing precision is improved.

This invention discloses an automatic ignition moxibustion pen, relating to the field of moxibustion operation technology. It includes a first mounting cavity within a main housing; a handle connected to the upper part of the main housing, with a second mounting cavity within the handle; feeding components mounted on both sides of the medicated strip; a magnesium rod ignition component mounted within the second mounting cavity, the second mounting cavity being inclined, the magnesium rod ignition component comprising a long magnesium rod, a scraper cover, and a driving component; an inclined surface within the second mounting cavity, adapted to press the scraper cover against the long magnesium rod during scraper cover movement; a third mounting cavity located at the inner bottom of the main housing, suitable for igniting the medicated strip; a cutting component mounted on the outer bottom of the main housing, suitable for cutting the medicated strip; and a temperature sensing element including a detection module one, installed within the third mounting cavity. This invention solves the problems of existing technologies where the ignition position is difficult to ignite and requires end grinding, increasing the risk of injury.

This invention discloses a BN@EVA composite pour point depressant and its preparation method, belonging to the petrochemical field. The invention improves the compatibility of nano-hexagonal boron nitride (BN) with ethylene-vinyl acetate copolymer (EVA) by hydroxylation and amination, and then uses a solvent blending method to composite BN-NH2 and EVA in xylene to prepare the BN@EVA pour point depressant. The mass fraction of BN in the composite pour point depressant is 1-3 wt%, with an optimal value of 2 wt%. When the addition amount is 500 mg / kg, the pour point of crude oil can be significantly reduced from 19℃ to -7℃, a reduction of 26℃. FT-IR and SEM characterization confirmed that BN was successfully modified and uniformly dispersed in the EVA matrix; DSC curves showed a decrease in crystallization temperature and a bimodal synergistic effect; microscopic observation showed that the wax crystal morphology changed from a dense network to a dispersed spherical shape, effectively improving low-temperature fluidity. This invention has the advantages of good pour point depressant effect, simple process, and low cost, and is suitable for the extraction and pipeline transportation of high-wax crude oil.

The application discloses a kind of solid wood board hot-pressing drying method, belong to timber processing technical field.Solid wood board hot-pressing drying method includes the following steps: solid wood board is placed on hot press;Hot press includes the upper pressing plate and lower pressing plate oppositely arranged along vertical direction, and left side pressing plate and right side pressing plate arranged along horizontal direction;Solid wood board is preheated;Upper pressing plate and lower pressing plate are heated to hot-pressing temperature;After upper pressing plate and lower pressing plate reach hot-pressing temperature, control upper pressing plate and lower pressing plate to exert radial pressure on solid wood board, left side pressing plate and right side pressing plate exert chordal pressure on solid wood board;When the moisture content of solid wood board reduces to below moisture content threshold, pressure is released and dried solid wood board is taken out.The application simultaneously exerts radial and chordal pressure during drying process, combined with the synergistic control of pressure and temperature, effectively controls wood deformation and stress during drying process, thereby inhibiting wood shrinkage, cracking and deformation problems.

The utility model discloses a spliced LED display screen support structure relates to LED display support field, including with the display screen connecting frame of LED display screen connection and install on the wall body wall body connecting frame, the display screen connecting frame is provided with the assembly spare that is connected with wall body connecting frame, be equipped with two working ends among the assembly spare, wall body connecting frame is provided with the installation clamping groove that is adapted to assembly spare, the installation clamping groove has two, respectively symmetrical in the both sides of wall body connecting frame, and every installation clamping groove all with one working end in assembly spare corresponds, and every installation clamping groove can limit one working end in assembly spare in wall body connecting frame, and the application has effectively solved the problem that the traditional support adopts bolt fixation when disassembling difficult, has greatly promoted the convenience of maintenance.

The invention discloses a liquid crystal polymer material and a preparation method and application thereof, and belongs to the technical field of high polymer materials, the liquid crystal polymer material comprises the following components by weight: 100 parts of a liquid crystal polymer, 30-100 parts of syndiotactic polystyrene, 10-100 parts of glass fiber, and 10-100 parts of hollow glass beads. Glass fibers and hollow glass beads are added into liquid crystal polymer matrix resin to serve as compound filler, syndiotactic polystyrene is introduced to serve as compound resin, the dielectric property, especially the dielectric property in a damp and hot environment, of a product can be effectively improved, meanwhile, the processing property of the product is excellent, and the service life of the product is prolonged. And under the thin-wall design, good injection molding machinability and thin-wall size stability are achieved, and various special machining requirements are met.

The invention belongs to the technical field of active noise control, and particularly relates to a selective fixed filter active noise control method based on a naive Bayes classifier and application of the method in MRI noise suppression. The method comprises the following steps: in an offline pre-training stage, designing multiple groups of fixed filter parameters for different MRI pulse sequence noises, and constructing a fixed filter database; in the online control section, noise features are extracted in real time, and optimal filter parameters are matched through a naive Bayes classifier. According to the method, the pre-training filter library is combined with the online classification decision, so that quick response and steady-state noise reduction of the non-stationary MRI noise are realized, the problems of slow convergence and large noise reduction performance fluctuation of a traditional adaptive algorithm are solved, and the comfort and hearing safety of a patient in the MRI examination process are improved.

The invention discloses a lift fan matrix vertical lifting high-altitude rocket launching platform and a using method, and belongs to the technical field of aerospace. The launching platform comprises at least two platform modules, electric ducted lift fans, a battery pack, a rocket docking clamping lock, a high-pressure push rod push-away system, a platform module docking locking mechanism and a flight control system, wherein the platform modules can be separated and docked, and the electric ducted lift fans are installed in the platform modules in a distributed mode. During use, the platform vertically ascends and descends to carry the rocket to a preset high altitude, the rocket is safely separated from the platform in a mode of pushing away first and then separating / descending, and then the rocket is ignited and launched. The electric lift fan matrix is adopted for providing power, the rocket launching platform has the advantages of being high in loading capacity, high in platform stability, capable of being repeatedly used, low in launching cost and the like, and the rocket launching efficiency can be effectively improved.

The application relates to the field of space intelligence, and provides a cross-scene space intelligent semantic topology generation method and system. In the process of constructing a cross-scene space semantic topology, a transition region modeling mechanism with a transition node as a core is introduced, regions where mutations in geometric structures, semantic attributes and topological scales simultaneously occur between different space scenes are identified, expanded and processed as independent objects, and the problem of semantic rupture, topological distortion and space incoherence caused by simple splicing at the scene boundary level in the prior art is avoided. The transition node is structurally expanded based on a topological connection relationship, a transition region reflecting the connectivity of different space scenes is constructed, and semantic transition consistency constraints and topological structure deformation compensation are implemented in the transition region. In addition, the application combines a multi-scale topological self-adaptive adjustment mechanism, so that the cross-scene semantic topology can dynamically adjust node granularity and topological levels under different space scales.

This invention discloses a large-model-driven multi-objective photovoltaic-storage distribution network control method under extreme weather conditions, belonging to the field of distribution network control technology. The method includes: collecting real-time electrical data and extreme weather data from the distribution network; identifying topology change events and generating structured natural language scene descriptions; generating a dynamic reward function with four objectives—voltage stability, frequency recovery, etc.—adapted to the scenario using a lightweight large-language model fine-tuned with power sector corpora; extracting global high-dimensional features using a topology and feature dual-attention graph convolutional network; using a vector concatenated from features and reward weights as state input, generating multi-device collaborative control instructions through a near-end policy optimization algorithm, and outputting the instructions after verification. This invention achieves dynamic perception of the distribution network topology, dynamic adaptation of control objectives, and collaborative optimization control of multiple devices under extreme weather conditions, comprehensively improving the operational resilience and renewable energy utilization efficiency of high-proportion renewable energy distribution networks under extreme weather conditions.

This utility model relates to the field of ball-serving machine technology, specifically a ball-serving machine. The ball-serving machine includes a ball-serving device and a support frame. The ball-serving device is located on top of the support frame and includes a ball-serving tube and a driver. A ball wheel housing is provided on the bottom side of the ball-serving tube. A ball wheel is provided at the output end of the driver. The ball wheel is rotatably mounted inside the ball wheel housing, and its top extends into the ball-serving tube. A conversion plate for adapting to ball size is provided inside the ball-serving tube above the ball wheel. A connector is provided between the ball-serving device and the support frame. The angle between the ball-serving device and the connector is adjustable, and the angle between the connector and the support frame is also adjustable. The support frame allows for horizontal angle adjustment of the ball-serving device. This utility model has a reasonable structure. Through its modular structure, multi-level angle adjustment, and adaptive ball design, it significantly outperforms traditional single-function ball-serving machines in terms of versatility, stability, and operability, and has high market promotion value.