42results about How to "Consider performance" patented technology

The invention discloses a platinum-based high-entropy alloy self-supporting catalyst as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: S1, dissolving a platinum source, an iron source, a cobalt source, a molybdenum source and a manganese source in a solvent according to the molar ratio of platinum to iron to molybdenum to cobalt to manganese being 1: 1: 1: 1: 1 to obtain a precursor solution; s2, dipping the carbon felt in a polyvinyl alcohol solution, and drying to obtain a substrate; and S3, dipping the substrate in the precursor solution, drying, and carrying out Joule heat flash evaporation to obtain the catalyst. According to the invention, five metals are added according to an equal molar ratio, the catalytic efficiency of the water electrolysis catalyst is improved by utilizing a high-entropy effect, the production cost of the catalyst is reduced, meanwhile, the long-time stability of the catalyst is improved by adding a self-supporting material, and an efficient and stable water electrolysis process in an acidic electrolysis environment is realized.

The application relates to the field of power systems and artificial intelligence security, and discloses a simulation attack and defense method of a power grid load frequency control system adopting a DRL controller, which comprises the following steps of: simulation attack: identifying system state variables most critical to DRL decision; setting an attack target and calculating an initial disturbance amount of the critical state variables, limiting the generation of a final disturbance amount; deducing disturbance amounts of the remaining dependent state variables to obtain an adversarial disturbance vector, which is superimposed to the DRL controller to implement the attack. Simulation defense: applied to a hybrid system containing DRL and a backup PID controller: real-time monitoring of the Q value sequence output by the DRL evaluation network to detect whether it is continuously lower than the normal benchmark; once the statistical quantity exceeds the threshold, it is determined that an attack is suffered, and the control right is immediately switched from the DRL to the PID controller to maintain the stability of the system. The method can generate a hidden and physically regular adversarial attack to evaluate the vulnerability of the system, and provide a fast and low-cost active defense mechanism to improve the security and resilience of the LFC system in the adversarial environment.

The invention relates to the technical field of data transmission, and particularly provides a streaming Token double-path transmission method, system and device and a storage medium, and the method comprises the steps: responding to a streaming request, completing the initialization of a system and a session, building a bypass channel from a model to a client, and creating a session context in a control flow engine; identifying the type of each Token generated by the model, and shunting according to the type: data Token routing to a bypass channel and control Token routing to a control flow path processed by a control flow engine; data bypass transmission and control flow service processing are executed in parallel, and the states of the data bypass transmission and the control flow service processing are ensured to be consistent through a state synchronization mechanism; and the dual-path operation state is continuously monitored, and dynamic path adjustment or abnormity recovery is carried out when abnormity is detected. According to the method, the data flow and the control flow are decoupled, so that the transmission delay of the streaming Token is remarkably reduced while the state consistency is ensured.

This application relates to the field of mobile communication technology, and in particular to a message polling resending method, apparatus, server, and storage medium. The method includes: obtaining a message report push table and a client status table; identifying service messages in the message report push table that have been pushed to the target client but not received by the target client, and identifying the client status of the target client in the client status table; and when the client status is online, polling and resending service messages to the target client at first preset intervals. This solves the problems in related technologies, such as the inability to balance server performance and timeliness, leading to excessive server load, degraded client performance, and the inability of the server to monitor the real-time status of the client, which can easily result in incorrect concatenation of interface request results.

The utility model relates to the field of automobile, concretely relates to a hybrid car front end cooling module. Specifically include big low temperature radiator, small low temperature radiator, connecting hose, condenser, high temperature radiator and electronic fan, big low temperature radiator is arranged in the first row of cooling module, and is in the front of condenser, small low temperature radiator is arranged in the front of condenser, and small low temperature radiator and big low temperature radiator are connected through connecting hose and are connected in series with two radiators, and low temperature radiating loop cooling liquid first flows through small low temperature radiator and then flows through big low temperature radiator, and high temperature radiator is arranged in the third row position, and the electronic fan arranged in the last end provides the air intake power for whole cooling module. The utility model can effectively solve the problem that hybrid car is under high temperature environment, and the water temperature of electric drive system is high and the temperature of engine intake is high, and the performance and energy consumption of air conditioning system are considered simultaneously.

This invention discloses a low surface energy active-passive synergistic antifouling coating and its preparation method, belonging to the field of marine antifouling materials technology. The preparation method of the antifouling coating includes the following steps: S1, mixing acetone and xylene and stirring under a nitrogen atmosphere to form a mixed solvent; S2, adding vinyl-terminated silicone resin and acrylic resin to the mixed solvent, stirring and heating to obtain a coating base liquid; S3, adding an initiator to the coating base liquid and continuously stirring and heating to react; S4, after the reaction is complete and the coating base liquid cools, adding functional fillers to form a coating liquid; S5, coating the coating liquid and drying to obtain a low surface energy active-passive synergistic antifouling coating. The low surface energy active-passive synergistic antifouling coating prepared by this invention solves the problem in existing marine antifouling technologies where the single antifouling mechanism prevents the simultaneous consideration of environmental friendliness and long-term effectiveness, and has broad application prospects in the field of marine antifouling materials technology.

The invention relates to a dual-module intercooler type fuel cell cathode inlet temperature and humidity cooperative control method. The method comprises the steps that fuel cell cathode air inlet real-time state parameters and operation parameters are obtained, a multivariable coupling prediction model is constructed after preprocessing, and a temperature and humidity reference and an oxygen stoichiometric ratio target reference are set in combination with heat exchange characteristics of a dual-module intercooler; then the core body heat exchange distribution proportion is regulated and controlled, humidification adjustment is matched, and the core body heat exchange distribution proportion and the humidification adjustment intensity are dynamically adjusted according to the real-time working condition; comparing the deviation between the adjusted actual temperature and humidity and the target temperature and humidity reference, and correcting the heat exchange distribution proportion and the humidifying adjustment parameter through a dynamic constraint correction model; cooperative regulation and control of cathode inlet temperature and humidity are realized, dynamic change of working conditions is adapted, and stable operation of the fuel cell is guaranteed.

The invention belongs to the technical field of electrode paste preparation, and particularly relates to an efficient and environment-friendly electrode paste production process. A composite binder and a corncob powder-lignin composite carbonized precursor are prepared, hexamethylenetetramine-melamine resin is used as a composite cross-linking agent, the rigidity and thermal stability of boron modified phenolic resin in the composite binder are enhanced through a B-O bond, a phenolic hydroxyl group of the boron modified phenolic resin and plant pitch form a hydrogen bond, and the plant pitch is subjected to heat preservation and heat preservation. A hydrogen bond-covalent bond cross-linked network is formed under the action of the cross-linking agent, so that the high-temperature structure stability is guaranteed; the corncob powder fixes lignin through a porous framework, multistage pore channels are formed after carbonization, interface gaps are filled, the lignin is pyrolyzed at a high temperature to generate a carbon nano-whisker reinforced framework, thermal stress can be dispersed, interface bonding can be enhanced, and therefore the compactness and high-temperature stability of the electrode paste are improved. In addition, the bio-based composite binder is adopted to replace traditional petroleum-based asphalt, so that the emission of harmful substances is reduced from the source, and the environmental protection benefit and the high performance of the product are both considered.

The utility model discloses a kind of laser devices convenient to patch package, including support, laser chip, metal pipe cap, the support includes concave table, metallized pad and annular step part, metal heat sink is fixedly embedded in the concave table, the laser chip is fixed on the metal heat sink upper surface by eutectic solder, the metal pipe cap is the tubular structure of one end opening one end airtight, the edge of the opening end of the metal pipe cap is sealed and fixed with the annular step part, the problems such as high cost, low production efficiency, poor fault tolerance, heavy weight of traditional TO packaging equipment are solved by structural innovation, under the premise of guaranteeing the performance of laser device, production economy and process adaptability are significantly improved.

The invention belongs to the technical field of road and bridge paving materials, and discloses an anti-rutting epoxy asphalt toughening additive. The formula comprises the following components in parts by weight: 40 parts of solid epoxy resin, 35 parts of a latent polyester curing agent, 5 parts of an ultra-high molecular weight epoxy toughening agent, 20 parts of a water damage resistant improver, 100 parts of hard asphalt particles, 2 parts of an antioxidant, 5.5 parts of a silane coupling agent, 6 parts of nano silicon dioxide, 0.1 part of a curing accelerator, 0.5 part of a light stabilizer and 1 part of a lubricating separant. In the formula, solid epoxy reacts with a latent polyester curing agent to form a three-dimensional rigid structure, and the three-dimensional rigid structure is matched with oxidized asphalt particles and nano silicon dioxide, so that the high-temperature stability and the pressure resistance are remarkably improved, and ruts are inhibited from the source; the ultra-high molecular weight epoxy flexibilizer can prolong the molecular chain segment of a cross-linking point, and is combined with the curing accelerator to regulate and control the reaction rate, so that the low-temperature crack resistance and fatigue resistance are enhanced while the strength is ensured.

This invention discloses a three-axis rotation assistive device for VR, belonging to the category of VR motion-sensing simulation devices. The device includes a support frame, a three-axis rotation mechanism, and a seat assembly. The three-axis rotation mechanism is composed of nested horizontal rotation, left-right rotation, and pitch rotation mechanisms. The horizontal rotation mechanism uses a conical bearing assembly, combining rotational transmission and vertical support to achieve 360° rotation. The left-right and pitch rotation mechanisms employ a modular drive system using arc-shaped tracks, gear racks, and rollers, eliminating the need for a gearbox. The maximum swing angle for both left-right and pitch rotation is 30°. This invention designs the range of motion based on human posture recognition, avoiding the risk of inversion, reducing torque and power requirements, resulting in a compact and lightweight structure, precise control, convenient maintenance, and improved safety and comfort, making it suitable for home VR motion-sensing scenarios.

Embodiments of the present specification disclose an application processing method and device, a storage medium and an electronic device, wherein the method comprises: obtaining a target file hash value of a target application file for first-level deduplication detection processing to obtain a first deduplication detection result; if the target application file is of the same type, performing deduplication filtering processing; if the target application file is of different types, determining file metadata features of the target application file, performing multi-level deduplication detection processing based on the file metadata features to obtain a multi-level deduplication detection result, and executing an application file detection process on the target application file based on the multi-level deduplication detection result.

The invention discloses a method for batch production of thick DC03 cold-rolled steel strips on a silicon steel production line. The method comprises the steps of converter smelting, vacuum treatment, continuous casting, hot rolling, acid rolling and continuous annealing. A unique annealing and stepped controlled cooling process is adopted; the DC03 comprises the following chemical components in percentage by mass: less than or equal to 0.0030% of C, less than or equal to 0.030% of Si, 0.15%-0.25% of Mn, 0.020%-0.055% of Alt, 0.050%-0.065% of Ti and the balance of Fe and inevitable impurities. On the premise of ensuring the mechanical properties (especially elongation and r value) of the product, the actual temperature of the strip steel at the outlet of the furnace area and in the subsequent process is greatly reduced, the problem of scalding of the rubber roller is fundamentally avoided, and stable and batch production of the thick DC03 (1.0-1.2 mm) on a silicon steel production line is realized.

The application relates to the field of packaging heat dissipation technology, and provides a three-dimensional integrated active heat dissipation structure, which comprises an upper cover plate layer, an air inlet hole is arranged on the upper cover plate layer; a fan and pump layer is arranged below the upper cover plate layer; at least one liquid cooling flow channel layer is arranged below the fan and pump layer; a high-power device layer is arranged below the at least one liquid cooling flow channel layer; at least one vapor chamber layer is arranged on at least one surface of the high-power device layer; at least one heat conduction material layer is arranged between the high-power device layer and the vapor chamber layer; and a lower cover plate layer is arranged at the bottom of the whole structure. The structure can be combined by selecting and matching the air cooling layer, the single and double liquid cooling layers and the vapor chamber layer according to different high, medium and low power devices, and three-dimensional integration and synergic coupling of the air cooling, liquid cooling and solid heat conduction structure are achieved, so that three-dimensional heat management is realized.

This disclosure relates to a rotor, an electric motor, and a compressor. The rotor includes a rotor core, a plurality of rare-earth permanent magnets, and a plurality of ferrite permanent magnets. The rotor core includes a plurality of core units arranged sequentially along the circumference of the rotor core. Each core unit has two first mounting slots and one second mounting slot arranged circumferentially at intervals. The first mounting slots have openings located on the outer circumferential surface of the core unit. The second mounting slots are located between the two first mounting slots and opposite to the side of the first mounting slots away from the opening. The plurality of rare-earth permanent magnets are fixed one-to-one in all the first mounting slots; the plurality of ferrite permanent magnets are fixed one-to-one in all the second mounting slots. This disclosure can improve motor performance by increasing the amount of inexpensive ferrite permanent magnets while reducing the amount of rare-earth materials used, thereby balancing motor performance and cost.

This invention relates to the field of robotic arm control technology, specifically disclosing an active vibration suppression system for a hydraulic robotic arm. The active vibration suppression system for a hydraulic robotic arm includes the following steps: Step 1, acquiring the driving force of the hydraulic cylinder of the hydraulic robotic arm as a vibration signal; Step 2, performing multi-window function filtering on the vibration signal to extract the overall trend of the vibration signal; Step 3, using a narrow time window function to identify the maximum and minimum values ​​of all signals within a wide time window function, and sliding point by point around the test point to further capture the detailed changes within the narrow time window function. If the point is the maximum or minimum value within the narrow time window function, then that point is output; Step 4, calculating the vibration index characterizing the system vibration; Step 5, calculating the joint angles of the hydraulic cylinder based on the actual stroke, subtracting the joint angle θ from the desired angle, deriving the vibration joint angle information that should be compensated, and performing compensation.

The utility model discloses an on-chip integrated collimation optical device, comprising a wafer, the surface of which is provided with a plurality of light-emitting areas arranged periodically; the adhesive layer covers the surface of the wafer, optical structures in one-to-one correspondence with the light-emitting areas are distributed on the outer side of the adhesive layer, the optical structures are used for collimating or collecting light beams emitted by the light-emitting areas, and the thickness T of the adhesive layer between the optical structures and the light-emitting areas is 10-500 microns; according to the on-chip integrated collimation optical device, through the innovative on-chip integrated design, the technical bottlenecks that a traditional collimation device is large in size, complex in alignment, high in cost and the like are solved, and remarkable breakthrough is achieved in the aspects of optical performance, production efficiency, application scenes and the like.

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.

This invention discloses a high-stability sodium battery cathode and its preparation method, comprising 3-15% PEDOT:PSS, 5-8% carbon nanotubes, 3-12% fluororubber, 0.5-5% nano-alumina, and the balance being cathode active material. The preparation method includes the following steps: S1. Carbon nanotubes and PEDOT:PSS are added sequentially to NMP and mixed to obtain a first dispersion; fluororubber powder is added to NMP at 80-100°C and dissolved to obtain a second dispersion; S2. The cathode active material and the first dispersion are mixed, then the second dispersion is added, and finally nano-alumina is added to obtain a cathode slurry; S3. The cathode slurry is coated onto the surface of an aluminum foil and then rolled to obtain the high-stability sodium battery cathode.

This invention relates to the field of medical information security technology, and discloses a blockchain-based method and system for auditing and detecting unauthorized access to medical data. The method includes: structurally modeling medical data access behavior to construct access behavior feature vectors; performing multi-source fusion risk assessment based on an access control policy model and a behavior learning model to obtain a comprehensive risk value; executing a graded processing strategy according to the risk level and generating corresponding audit logs; structurally organizing the audit logs and constructing a Merkle tree to generate data fingerprints; writing the data fingerprints and summary information into the main chain, storing the complete audit logs in a side chain or off-chain storage, and achieving consistency verification through Merkle proofs; using smart contracts to verify the audit data and automatically execute access control responses, while simultaneously feeding back the audit results for model updates. This invention enables real-time detection, graded processing, and trusted auditing of medical data access behavior.

The utility model discloses a motorcycle front magnetorheological damper and motorcycle, including working cylinder, guider assembly, piston assembly, floating piston assembly, magnetorheological fluid, outer tube support assembly, ECU control unit and sensor, guider assembly, piston assembly and floating piston assembly are located in the inside of working cylinder, and piston assembly includes built -in solenoid and damping passage, and damping passage penetrates the upper and lower end of piston assembly, and magnetorheological fluid fills the working cavity between guider assembly and floating piston assembly, and, outer tube support assembly is at least partially coated in the outside of working cylinder, and is connected with guider assembly, and ECU control unit and solenoid electric connection are used for the signal adjustment input to solenoid's current according to sensor, like this through solenoid and the combination of magnetorheological fluid, ECU control unit can real -time regulation magnetic field intensity, change the viscosity of magnetorheological fluid to dynamic control damping force.

The application relates to the technical field of information security, in particular to a trusted execution environment reinforcement system based on a post-quantum cryptography, which further comprises a selector module and a post-quantum cryptography algorithm library arranged in a security world of a trusted execution environment; the selector module is used for receiving encrypted data instruction information forwarded by an application module in the security world of the normal world of the trusted execution environment, determining corresponding final encryption algorithms in an inherent cryptography library of the trusted execution environment and / or the post-quantum cryptography algorithm library based on the encrypted data instruction information by adopting a pre-set selection strategy, and encrypting to-be-encrypted data existing in a shared memory based on the final encryption algorithms to obtain corresponding encryption results; the cryptography library comprises a plurality of traditional encryption algorithms arranged in a pre-set first order; and the post-quantum cryptography algorithm library comprises a plurality of post-quantum encryption algorithms arranged in a pre-set second order.

This utility model relates to dishwashers, specifically providing a water cup assembly and a dishwasher, aiming to solve the problem of insufficient water intake in existing dishwasher water pump inlet structures, which leads to air or foam easily entering the water pump, causing cavitation and affecting the stability and reliability of the system operation. To this end, the water cup assembly of this utility model includes: a water cup with a downwardly recessed first groove; an insert disposed within the first groove to restrict the water flow path within the first groove; the insert has a notch, allowing water in the first groove to flow along the notch. The notch in this utility model increases the water intake in the first groove, helping to form a stable water seal layer in the water tank, effectively preventing air from entering the washing pump and preventing cavitation, thereby improving the operational stability and reliability of the washing system. Simultaneously, the notch structure of the insert reduces material usage while meeting functional requirements.

This invention provides a method and apparatus for material selection optimization based on heterogeneous graph neural networks, relating to the field of computer technology. It enables low-cost and high-reliability material selection for entities through hybrid optimization and global optimization of discrete material selection variables and continuous proportioning variables. The method includes: acquiring material configuration schemes for an entity and test results of performance indicators for each scheme; each material configuration scheme includes: an identifier for at least one selected material and proportioning data for each selected material; training a material scheme performance evaluation model using the material configuration schemes and test results; the material scheme performance evaluation model includes a graph neural network and a performance prediction model, the graph neural network including multiple heterogeneous graph models; and using the trained material scheme performance evaluation model as the fitness function of a genetic algorithm model to determine a target material configuration scheme based on performance indicators according to the genetic algorithm model.

This invention relates to the field of information technology, specifically to a FaaS distributed computing system, method, and storage medium based on a sidecar mode. The system includes a function gateway, a middleware service layer, and computing nodes. A business function access interface receives business function call requests. The middleware service layer provides database services, caching services, message queue services, and file storage services to the function gateway and computing nodes. The database service includes a business function query service. After receiving a business function call request, the function gateway uses the sidecar mode to call the middleware service layer's business function query service to obtain business function information. The function gateway submits the business function information to the computing nodes for execution. When the computing nodes execute the business function information, they call the middleware service layer using the sidecar mode. The computing nodes then feed back the business function execution results to the function gateway. The beneficial technical effects of this invention include: balancing ease of use, performance, security, and completeness.

This application provides a battery cell and an electrical device. The battery cell includes a positive electrode sheet, which includes a positive current collector and a positive electrode film layer. The positive electrode film layer includes a positive active material, which includes a lithium phosphate-containing material. It also includes a negative electrode sheet, which includes a negative current collector and a negative electrode film layer. The negative electrode film layer includes a negative active material, which includes at least one of a carbon material or lithium titanate. A separator includes a substrate and an elastic coating, which includes an elastic material. The substrate is located between the elastic coating and the negative electrode sheet. The compressibility of the elastic material is 50%-90%, and the areal density D1 of the elastic material satisfies 0.4 g / m³. 2 ≤D1≤1g / m 2 The thickness D2 of the negative electrode active material satisfies: 80μm≤D2≤150μm. The technical solution of this application can improve the reliability and safety of the battery.

This invention discloses a method, device, medium, and system for recommending scientific and technological achievements based on business behavior chains, belonging to the field of scientific and technological achievement recommendation technology. The steps include: profiling the organization and constructing an internal business behavior chain; upon receiving a recommendation request, reading the profiling data, performing multi-path hybrid recall, with the recall ratio of each path dynamically adjusted according to the scenario, and merging the multi-path recall results into a recall candidate set; using shared embedding hybrid dual-tower coarse ranking to score and re-rank the recall candidate set, forming a coarse-ranked candidate set; constructing prompt word templates for the coarse-ranked candidate set, inputting the prompt words into a large language model to jointly generate a matching score and a natural language recommendation reason. This invention can achieve high-precision, high-efficiency, and interpretable scientific and technological achievement recommendation in large-scale organizational internal scientific and technological collaboration scenarios.

Embodiments of the present application provide a cluster token acquisition method, device, equipment and storage medium, the present application can acquire the rate of loss of flow limitation, so that the application server can determine its token request strategy based on the acceptable token loss ratio in the cluster environment, thereby providing the basis for subsequent token quantity determination; by meeting the token request condition, the number of tokens required is calculated according to the rate of loss of flow limitation, and then the calculated token quantity is requested to the token server, which reduces the network overhead and token server pressure caused by frequent requests, ensures the accuracy of flow limitation, so that the cluster can balance performance and stability in high concurrency scenarios, and realizes the balance between flow limitation accuracy and system throughput.

The invention relates to the technical field of optical lenses, and particularly discloses a long-focal-length short-wave infrared imaging lens group, which sequentially comprises a first positive lens, a second positive lens, a first negative lens, a diaphragm, a third positive lens, a second negative lens, a fourth positive lens and an optical filter along an optical axis, wherein the first positive lens is a biconvex lens, the second positive lens is a meniscus positive lens, the first negative lens is a meniscus negative lens, the third positive lens is a meniscus positive lens, the second negative lens is a meniscus negative lens, and the fourth positive lens is a biconvex lens. The achromatism of the broadband of 900 nm to 1700 nm is realized; by combining the matching design of thermal expansion coefficients, passive athermalization of a wide temperature zone from-40 DEG C to + 60 DEG C is realized, the long focal length of 200mm, the F2.0 large aperture and the compact volume are realized, and the wide-temperature-zone passive athermalization lens has the remarkable advantages of high light flux, stable high and low temperature imaging, low cost, easiness in processing and mass production and the like.