Patents
Literature
34results about How to "Avoid performance fluctuations" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Multi-sensor fusion system simultaneous positioning and mapping method and related device
PendingCN121932988ARealize intelligent integrationImplement weight self-adjustmentNavigational calculation instrumentsNavigation by speed/acceleration measurementsPattern recognitionSimultaneous localization and mapping
The invention belongs to the field of multi-sensor fusion systems, and discloses a multi-sensor fusion system simultaneous positioning and mapping method and a related device, and the method comprises the steps: obtaining an environment image, a laser point cloud and IMU data; scene semantic information is extracted through a multi-modal large model; dynamically generating a weight matrix of vision and laser radar relative to an IMU (Inertial Measurement Unit) by utilizing a vision and point cloud condition deep neural network in combination with scene information and IMU observation; and performing local and global optimization by combining each sensor speedometer factor, an IMU pre-integration factor and the weight matrix, and finally outputting robot state estimation and map point coordinates. Through semantic understanding and a self-adaptive weight mechanism driven by a conditional deep neural network model, a fusion strategy can be intelligently adjusted before environment change or sensor degradation, the robustness, precision and consistency of a system in an unstructured scene are improved, and the problems of positioning drift and map failure caused by fixed weight in a traditional method are solved.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI
An inorganic silicon crystal fire-resistant and heat-insulating material for fireproof air ducts and its preparation method
This invention relates to the field of thermal insulation materials, specifically to an inorganic silicon crystal fire-resistant thermal insulation material for fireproof air ducts and its preparation method. The material comprises inorganic silicon crystal powder, hollow microspheres, composite binders, reinforcing fibers, surface modifiers, nano-antibacterial agents, crack-resistant agents, flame-retardant synergists, and intumescent flame-retardant microcapsules. The inorganic silicon crystal powder is activated by calcination, the microspheres are pretreated with coupling agents and coated with silica sol, the binder is a compound type, the fibers are grafted, the antibacterial agent is loaded onto a carrier, and the flame-retardant microcapsules have a specific core and shell. All components work synergistically to ensure performance. This invention improves the material's fire resistance, thermal insulation, and mechanical properties, integrates antibacterial and flame-retardant functions, optimizes the process to ensure stable performance, reduces fire risk, and meets the high-performance and high-stability requirements of high-end building fireproof air ducts.
Owner:湖南中安智科科技集团有限公司
Lithium iron phosphate slurry preparation device
This utility model discloses a lithium iron phosphate slurry preparation device, including multiple grinding mechanisms connected in series. Each grinding mechanism includes grinding components and screening components. The grinding precision of the multiple grinding components gradually increases along the series direction. The screening component has a feed inlet, a return inlet, and a discharge outlet. The feed inlet is connected to the discharge end of the grinding component. The return inlet and discharge outlet are used to discharge materials with particle sizes larger than and smaller than a set value, respectively. The return inlet is connected to the feed end of the grinding component, and the discharge outlet is connected to the feed end of the grinding component in the next grinding mechanism in the series. By connecting the grinding mechanisms in series, continuous production of lithium iron phosphate slurry is achieved, avoiding performance fluctuations between batches. Furthermore, by setting a screening component in each grinding mechanism, the grinding precision of each stage can be controlled, allowing for precise control of the abrasive particle size.
Owner:FUAN QINGMEI ENERGY MATERIALS CO LTD
Low-thermal-conductivity high-stability composite insulating coated sand and preparation method thereof
The application belongs to the technical field of coated sand for casting, and discloses a composite heat-insulating coated sand with low heat conduction and high stability and a preparation method thereof.The coated sand comprises raw sand, phenolic resin, boron-silicon hybrid porous ceramic microshell modifier, heat-triggered boron-silicon-benzoxazine interface bridging microcapsule modifier, curing agent and lubricant.During preparation, the boron-silicon hybrid porous ceramic microshell modifier is mixed with preheated raw sand, and then the first part of phenolic resin, the heat-triggered interface bridging microcapsule modifier, the second part of phenolic resin, the curing agent and the lubricant are sequentially added to obtain the composite heat-insulating coated sand.The coated sand forms a layered structure of a raw sand core, a boron-silicon microshell heat-insulating inner layer, a benzoxazine bridging interface layer and a phenolic resin outer sealing layer, forms an interface bridging network in the core-making heating stage, and thus reduces heat conduction and improves thermal strength and storage stability.
Owner:南阳仁创再生资源有限公司
Scooter and scooter frame
ActiveCN224277428Uincrease capacitybig spaceFoldable cyclesAxle suspensionsVehicle frameControl cell
The utility model relates to the technical field of scooters, and discloses a scooter and a scooter frame, the scooter comprises the scooter frame, the left side of the scooter frame is fixedly connected with a girder, the inner wall of the girder is rotatably connected with a scooter rod base, the top of the scooter rod base is fixedly connected with a threaded rod, and the outer wall of the threaded rod is rotatably connected with a scooter rod head. A lock sleeve is arranged on the outer wall of the vehicle rod head, a screw is in threaded connection with the inner wall of the lock sleeve, a rotating shaft is rotationally connected to the front end of the screw, a rotating handle is fixedly connected to the outer wall of the rotating shaft, and a cushioning mechanism is fixedly connected to the right side of the vehicle frame. According to the utility model, the design of the frame enables the space of the mounting cavity to be enlarged, the capacity of the electricity storage piece to be improved, the control unit is placed in the heat dissipation cavities on the two sides of the mounting cavity, the guide plates can guide external airflow to enter the heat dissipation cavities, and heat generated when the control unit works can be taken away in time; therefore, the performance stability of the whole product in long-time operation is ensured.
Owner:NINGBO XINGYE TECHNOLOGY CO LTD
Heat conduction and heat dissipation integrated circuit board of mining machine
ActiveCN224218568UImproved operating temperature stabilityShorten delivery hierarchyPrinted circuit detailsCooling/ventilation/heating modificationsThermodynamicsSilicone grease
The utility model relates to the field of circuit boards, in particular to a mining machine heat conduction and heat dissipation integrated circuit board which comprises a heat conduction board. The lower end of the heat conduction plate is fixedly connected with uniformly distributed heat dissipation blocks, and the upper end of the heat conduction plate is fixedly connected with a first high heat conduction insulating layer. According to the utility model, an aluminum substrate and a heat-conducting silicone grease layer are removed, and the high-heat-conducting insulating layer is adopted to directly bridge the chip to be connected with the heat-conducting plate, so that the heat transfer level is greatly shortened, the interface thermal resistance is remarkably reduced, the heat is rapidly and directionally conducted, and the working temperature stability of the chip is improved; performance fluctuation caused by heat attenuation of multiple layers of media of a traditional structure is effectively avoided, through collaborative design of the T-shaped heat dissipation grooves and the columnar heat conduction columns, a three-dimensional heat dissipation channel is constructed, the air convection efficiency is enhanced, the heat conduction plates made of high-heat-conduction materials are combined, the overall heat dissipation capacity is remarkably improved, continuous and stable operation of the chip under the high-load working condition is ensured, and the service life of the chip is prolonged. The compact structure design breaks through the space limitation of a traditional heat dissipation system.
Owner:DONGGUAN KANGNA ELECTRONIC TECH CO LTD
PFM-nanocellulose-hydroxyapatite synergistically reinforced biodegradable materials and applications
The application relates to the technical field of biodegradable toy materials, and discloses a PFM-nanocellulose-hydroxyapatite synergistically reinforced biodegradable material and application, which is prepared from components such as polylactic acid, polybutylene adipate terephthalate, polypropylene carbonate, polybutylene succinate, hydrophobic pore-keeping modified plant fiber micro powder, antibacterial microcapsules, nanocellulose paste and grafting compatibilizer. In the preparation process, quaternary resin is premixed and melted, nanocellulose paste is injected laterally, and a high-vacuum in-situ devolatilization process is combined, so that liquid medium is removed in real time and in-situ dispersion of nanocellulose is realized. According to the scheme, a physical interwoven space reinforcing structure is constructed in the matrix, the toughness and the mechanical modulus of the material are synergistically improved, long-acting bacteriostasis is realized by relying on controlled release of the microcapsules, the problems of reinforcing phase agglomeration and short bacteriostasis time are solved, and the application is suitable for production of high-performance long-acting antibacterial biodegradable toys.
Owner:SHOUKANG MEDICAL SCI & TECH (SHANDONG) CO LTD
A soil carbon-increasing and fertilizing method based on carbon-nitrogen ratio phased regulation of microbial community and application thereof in rice planting
PendingCN122581075AOvercome technical bottlenecks that are difficult to balanceAchieve high level enrichment
The application discloses a kind of based on carbon-nitrogen ratio phased regulation and control of soil carbon-increasing fertilization method of flora and its application in rice planting.The method carries out pre-rotting to rice straw and pig manure under the condition of phased carbon-nitrogen ratio, controls carbon-nitrogen ratio to be (25-28):1 in the first stage to promote carbon-fixing flora proliferation, adjusts carbon-nitrogen ratio to be (30-32):1 in the second stage to promote nitrifying bacteria group activation, and the obtained pre-rotted material is applied as base fertilizer into paddy field, and is based on the abundance monitoring result of soil carbon-fixing flora and nitrifying bacteria group during the rice growth period to carry out topdressing regulation and control.The application realizes the synergistic enrichment of paddy field carbon-fixing flora and nitrifying bacteria group by phased carbon-nitrogen ratio regulation and control, significantly improves soil organic carbon content while effectively reducing greenhouse gas emissions, improves rice yield and nitrogen utilization rate, and establishes a feedback control mechanism based on flora monitoring, to ensure the sustained and stable fertilization effect.
Owner:SICHUAN AGRI UNIV
Database transaction management method and device, equipment, storage medium and program product
PendingCN121979620AAvoid performance fluctuationsGuaranteed uptimeMultiprogramming arrangementsDatabase design/maintainanceEngineeringTerm memory
The invention relates to a database transaction management method and device, equipment, a storage medium and a program product. The method comprises the steps that when it is detected that truncation operation needs to be conducted on a transaction submission log, a rollback file in a memory is traversed, and a target transaction identifier in the rollback file is found; the identifier value of the target transaction identifier is the minimum value of a to-be-recycled transaction identifier in the rollback file, and the transaction corresponding to the target transaction identifier is in a rollback state, a to-be-rollback state or a submitted state; the rollback file comprises a plurality of transaction identifiers, the state of each transaction and the information storage address of each transaction; the transaction identifier is coded by adopting 64 bits; and performing truncation operation on all transactions smaller than the target transaction identifier in the transaction submission log. By setting the rollback file in the memory to store the transaction information, the target transaction identifier can be quickly determined when the transaction submission log is cut off, and the transactions smaller than the target transaction identifier are directly judged to be visible, so that the performance fluctuation of the database is avoided.
Owner:CHINA TELECOM CLOUD TECH CO LTD
Modulation signal identification method based on convolution attention and multi-dimensional feature fusion
PendingCN121997249AEliminate amplitude biasFast convergenceBiological modelsComputation complexityFeature fusion
The invention discloses a modulation signal identification method based on convolution attention and multi-dimensional feature fusion, and solves the problems that in the prior art, different signals in the same signal family always show similar features under the condition of a low signal-to-noise ratio, so that a model is difficult to distinguish effectively, the identification accuracy is reduced, and the identification accuracy is low. The modulation signal identification under a low signal-to-noise ratio is realized, the identification precision is higher, and the calculation complexity is lower; the method comprises the following steps: acquiring an original complex signal, normalizing the original complex signal to obtain an IQ sequence, and obtaining an AP sequence through the IQ sequence; then, a pre-trained signal identification network is used for identification; a preprocessing module converts the input IQ and AP sequences into IQ and AP feature maps; the feature extraction module extracts local and global features to form a path feature map; the WAFF module performs weighted fusion on the two paths of features; and finally, the classification head outputs a classification result according to the fusion features.
Owner:XIDIAN UNIV
Fuzzy Adaptive Intelligent Wiper Motor Control System and Method Based on Noise Assessment
PendingCN122137298AReduce running noiseensure accuracy andAC motor accelaration/decelaration controlVehicle cleaningControl systemControl engineering
This invention discloses a fuzzy adaptive intelligent wiper motor control method and system based on noise evaluation. It includes an initial speed curve design module for generating an initial angular velocity curve based on the wiper operating frequency and wiping angle; an adaptive algorithm optimization module that processes real-time wiper operating data through a fuzzy logic controller, outputting speed and acceleration adjustment values; a neural network optimization module that uses a multi-layer feedforward neural network to optimize the fuzzy logic controller parameters to minimize the objective function; and a motor control module that adjusts the motor setpoint in real time based on the optimized adjustment values. This invention solves the problem of abnormal noise from automotive wipers, which is caused by excessive noise or insufficient wiping efficiency due to improper speed control. It significantly reduces operating noise, ensures that the wiping frequency meets regulatory requirements, and improves the adaptability and stability of the control system.
Owner:DONGFENG MOTOR GRP
A model training method, device, equipment, medium and program product
PendingCN122657638AImprove recognition accuracyavoid performance fluctuationsFeature extractionEngineering
Embodiments of the present application provide a model training method and device, equipment, medium and program product, which are used to improve the recognition accuracy, stability and adaptability of the model. It can be applied to the fields of artificial intelligence and image recognition. It includes: obtaining initial training images and the same first model and second model trained based on feature distillation; performing degradation processing on the initial training images to obtain first training images; calling the two models to perform feature extraction on the initial training images and the first training images respectively to obtain first features and second features; training the second model based on the first features and the second features to obtain a third model; performing degradation processing on the first training images to obtain second training images; calling the two models to perform feature extraction on the first training images and the second training images respectively to obtain third features and fourth features; training the second model based on the third features and the fourth features to obtain a fourth model; and iterating in this way until a target model is output.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD
A functional asparagus powder with high saponin content and its preparation method
PendingCN122074628AWith temperature response characteristicsReduce thermo-oxidative degradationDough treatmentModified nutritive productsBiotechnologyCellulose
This invention relates to the field of functional food processing technology, specifically disclosing a functional asparagus powder with high saponin content and its preparation method. The method includes the following steps: asparagus is sliced and microwaved to deactivate enzyme activity; after pulping, a composite regulator aqueous dispersion is added; the pH is adjusted and a cellulose complex enzyme is added for enzymatic hydrolysis; then, it is pre-frozen and vacuum freeze-dried; finally, it is pulverized, sieved, and packaged under a nitrogen atmosphere. The composite regulator can dynamically stabilize and protect saponin molecules through temperature-responsive behavior during processing, significantly reducing thermal degradation. The resulting asparagus powder has a saponin content of 72-85 mg / g and is rich in flavonoids, phenols, and soluble dietary fiber. This product can be used in functional foods that improve sleep. When added at a 4% level to bread, noodles, or meal replacement porridge, animal experiments have verified that it can significantly prolong sleep time and increase the incidence of sleep in mice, exhibiting high nutrient retention and good stability.
Owner:SICHUAN QILIKANG BIOTECHNOLOGY CO LTD
A method for preparing nano-boehmite and its application in lithium-ion battery separators.
ActiveCN121627035Bhigh purityreduce agglomerationAluminium compoundsSecondary cellsElectrolytic agentPolyolefin
This invention discloses a method for preparing nano-boehmite and its application in lithium-ion battery separators, belonging to the field of inorganic nanomaterial preparation technology. The method includes five steps: raw material calcination and activation, preparation of precursor slurry, hydrothermal synthesis reaction, washing and filtration, and drying and depolymerization. Calcination is carried out in a dynamic calcination furnace, whose exhaust mechanism can promptly remove water vapor. During discharge, the switching mechanism automatically opens the discharge cover, achieving continuous production with no material sticking to the wall and no residue. The obtained nano-boehmite is characterized by low sodium content, uniform particle size, and good dispersibility. This material can be formulated with binders and other agents to form a ceramic coating slurry. After coating and drying, a robust nano-ceramic coating is formed on the surface of a polyolefin-based membrane. This coating significantly improves the thermal stability, electrolyte wettability, and puncture resistance of the separator, thereby improving the battery's safety performance and cycle life.
Owner:XINKE ZHONGLIAN NEW MATERIAL (SHANDONG) CO LTD
Accurate proportioning and mixing equipment for rubber sealing ring material
ActiveCN224060182UImprove quality consistencyavoid performance fluctuationsSolenoid valveControl engineering
The utility model relates to the technical field of rubber processing equipment, in particular to rubber sealing ring material accurate proportioning and mixing equipment which comprises a support frame, a mixing barrel, a storage barrel, a mixing device, a batching device, a discharging device, a conveying device and an opening and closing device, the mixing barrel is rotatably mounted in the support frame, the mixing device is mounted in the mixing barrel, and the discharging device is mounted in the storage barrel. The discharging device is installed on the side wall of the supporting frame, materials in the material storage barrel are conveyed into the feeding hopper, the weight of the raw materials in the feeding hopper is monitored in real time through the weighing sensor, when a set value is reached, feeding is stopped, the weighing sensor monitors the weight of each raw material in real time, and the discharging device is used for discharging the raw materials. Required raw materials are proportioned in the feeding hopper in an accumulative weighing mode, the consistency of product quality is remarkably improved, after proportioning is completed, the electromagnetic valve on the discharging pipe is opened, meanwhile, the sealing plate is opened through the opening and closing device, and the materials in the feeding hopper enter the feeding frame below through the discharging pipe.
Owner:JIANGSU MINGKE PRECISION RUBBER & PLASTIC TECH CO LTD
Regenerated material anti-error system using RFID card reader and RFID card
ActiveCN224176975Uavoid performance fluctuationsavoid scrappingPlastic recyclingCo-operative working arrangementsMolding machineControl engineering
The utility model discloses a regenerated material anti-error system using an RFID card reader and an RFID card. The regenerated material anti-error system comprises a crushing controller, a forming controller, a first RFID reader-writer, a second RFID reader-writer, an RFID tag and a main controller, the RFID tag carries model information corresponding to the regenerated material, the first RFID reader-writer is arranged at a feeding port of the pulverizer, and the second RFID reader-writer is arranged at a water gap waste recovery port of the forming machine. The first RFID reader-writer and the second RFID reader-writer are respectively arranged at the feeding port of the crusher and the recovery port of the forming machine to read the RFID tag bound with the model information of the regenerated material, so that the model of the regenerated material received from the recovery port of the forming machine is consistent with that of the regenerated material fed into the crusher; and if the read model is not matched with the model information of the regenerated material which is being processed by the forming machine or the crusher, starting and stopping signals are output to the crushing controller or the forming controller to interrupt the operation of the equipment, so that performance fluctuation or scrapping caused by material mixing is effectively prevented.
Owner:GUANGZHOU DENSO
A method and system for monitoring and early warning of debris flow ground motion
PendingCN122085357AImprove robustnessImprove generalization abilityBiological modelsAlarmsDisaster monitoringTransformer
This invention discloses a method and system for monitoring and early warning of debris flow ground motion, belonging to the field of geological disaster monitoring and early warning technology. The method includes: synchronously slicing continuous seismic records according to a unified absolute time axis, using waveform pairs from multiple stations as basic input units; independently encoding the signals from each station using a time-frequency hybrid encoder (STFT+LSTM-Transformer); constructing a spatiotemporal cost volume using a Lag-UNet module to achieve soft alignment of cross-station feature spaces; modeling four sets of feature interaction quantities using a causal TCN and outputting the probability of debris flow occurrence through attention pooling; and continuously sampling negative samples with replacement from a large-scale noise pool during the training phase using a dynamic sampling strategy.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
A secondary design method for mix proportion of hybrid steel fiber self-compacting concrete based on solid phase surface filling layer customization
ActiveCN115831269Bavoid performance fluctuationsOptimize work performance controlSolid waste managementDesign optimisation/simulationFiber diameterMechanical engineering
This invention discloses a secondary design method for the mix proportion of hybrid steel fiber self-compacting concrete based on a customized solid-phase surface filling layer. Starting with a basic mix proportion of fiberless self-compacting concrete, steel fibers are introduced, and a secondary mix proportion design is performed using a secondary design envelope curve to obtain the final mix proportion of the steel fiber self-compacting concrete. This design method can encompass material variations such as different fiber diameters and aggregate systems, and can achieve the mixed incorporation of fibers. This reduces fluctuations in the workability of the mixture caused by material and fiber content, significantly improves stability, optimizes the workability control of fresh self-compacting concrete, greatly reduces the number of mix proportion adjustments, and enables rapid mixing of self-compacting fiber concrete. It provides guidance for the application of fiber concrete and the targeted customization of mix proportions in practical engineering.
Owner:CENT SOUTH UNIV
Method, apparatus, device, medium and product for flow control based on storage array
The application provides a storage array-based traffic control method, device, equipment, medium and product. The method comprises: obtaining target characteristic data of a target path, the target path comprising a path between a host and a storage array and / or a path between a takeover storage array and a heterogeneous storage array; predicting, by using a preset delay prediction model, a transmission delay of the target path in a future target time period according to the target characteristic data of the target path, and outputting a target delay time, so as to predict the transmission delay time of the target path in the future target time period, and determine a target input / output parameter of the target path in the future target time period based on the target delay time, so that the system can pre-configure the target input / output parameter to adapt to an upcoming load change according to the target delay time, effectively avoiding performance fluctuations and service interruptions caused by remediation after input / output congestion occurs, and reducing the average input / output delay of the system.
Owner:DAWNING INFORMATION IND (BEIJING) CO LTD +2
Lightweight model cooperative distillation and updating system for edge computing
The application discloses a lightweight model cooperative distillation and updating system for edge computing and relates to the technical fields of edge computing and machine learning. The system comprises an edge computing device and a cloud center server. The edge computing device stores a lightweight model, a version number and a to-be-updated layer index table, acquires an image frame and extracts first feature data, first confidence and quality tensor. When a weighted product is lower than a trigger threshold, a cooperative request package is packaged and sent to the cloud. The cloud center server extracts second feature data from the image frame, calls a parameter matrix from a projection matrix library, generates aligned feature data, calculates a residual error with the second feature data and chainwise derives to generate a decoupling gradient vector which is fed back to the edge device. The edge device checks a version number time sequence deviation, executes parameter coverage and updates the version number. The application realizes lightweight model distillation and updating of cloud-edge cooperation, reduces edge computing cost while ensuring model performance.
Owner:NORTHEAST FORESTRY UNIV
High-heat-capacity low-corrosivity carbonate molten salt heat transfer and storage medium, method and application
The invention discloses a high-heat-capacity and low-corrosivity carbonate molten salt heat transfer and storage medium, a method and application, and belongs to the technical field of molten salt heat storage. The high-heat-capacity and low-corrosivity carbonate molten salt heat transfer and storage medium is prepared from K2CO3, Li2CO3, Na2CO3, AlCl3 and Al powder in percentage by mass, the Al powder and the AlCl3 powder are introduced into carbonate molten salt, the application target that the heat storage performance is excellent at the temperature of 600-850 DEG C can be achieved, and the heat transfer and storage efficiency of the carbonate molten salt is improved. And meanwhile, [Al] with considerable activity is generated by virtue of potential regulation capability of dissolved metal ions and gaseous chloride products by virtue of physical adsorption and chemical adsorption acting forces, so that the aim of reducing corrosion is fulfilled. The high-heat-capacity and low-corrosivity carbonate molten salt heat transfer and storage medium disclosed by the invention realizes the application goals of excellent heat storage performance and low corrosivity, is high in stability, simple in preparation process and easy for large-scale production, and can be applied to photo-thermal power generation and molten salt energy storage.
Owner:XIAN THERMAL POWER RES INST CO LTD
An isolating transformer and safety barrier
The application discloses an isolation transformer and a safety barrier. The isolation transformer integrates multiple transformer units, and the transformer comprises a multilayer printed circuit board, multiple primary winding groups, multiple secondary winding groups, multiple magnetic cores and multiple metal shielding structures. Multiple through holes are formed in the multilayer printed circuit board and penetrate the multilayer printed circuit board; the primary winding groups and the secondary winding groups are annular copper foil windings formed on the multilayer printed circuit board; the magnetic cores are embedded in the through holes and used for forming a closed magnetic circuit to realize magnetic-electric coupling between the primary winding groups and the secondary winding groups in the transformer units; the metal shielding structures are metal shielding frames formed on the periphery of the multilayer printed circuit board and used for shielding electromagnetic interference; one primary winding group, one secondary winding group, one magnetic core and one metal shielding structure constitute one transformer unit. The application is beneficial to integrated multiple transformer units, improves the insulation reliability and electromagnetic compatibility performance of the isolation transformer, and reduces the production cost of the isolation transformer.
Owner:SHANGHAI CHENZHU INSTR CO LTD
A method for synergistic control of residual stress and microstructure in a pulsed current-assisted metal additive manufacturing process
PendingCN122077031AImprove uniformityreduced stress stateAdditive manufacturing apparatusArc welding apparatusHeat-affected zoneManufacturing technology
This invention discloses a method for synergistic control of residual stress and microstructure in a pulsed current-assisted metal additive manufacturing process, belonging to the field of metal material additive manufacturing technology. The method includes the following steps: S1, setting the process parameters for metal additive manufacturing and planning the area and timing for synchronously applying pulsed current; S2, during the layer-by-layer deposition process of the component, when a high-energy laser beam, electron beam, or electric arc acts on the deposition area to form a molten pool, a pulsed power supply is triggered by a synchronous control unit to apply a pulsed current with preset parameters to the molten pool and the heat-affected zone; S3, through the synergistic effect of the electroplasticity and Joule heating of the pulsed current, thermal stress relaxation, grain refinement, and microstructure homogenization are simultaneously achieved during the manufacturing process. This invention, by employing the above method and precisely controlling the electrical pulse parameters, simultaneously achieves stress relaxation and solidification microstructure optimization during the manufacturing process, significantly improving the dimensional stability, fatigue life, and mechanical properties of the formed component.
Owner:NANJING TECH UNIV
Method for preparing melamine polyphosphate at low temperature
ActiveCN121949232Aavoid decompositionThe process is simple and easy to controlOrganic chemistryMelamine phosphatePolyphosphate
The invention provides a method for preparing melamine polyphosphate at low temperature, and relates to the field of melamine polyphosphate. The method for preparing melamine polyphosphate at low temperature comprises the following steps: dispersing polyphosphoric acid, reacting at low temperature and post-treating. The method for preparing melamine polyphosphate at low temperature can solve the problems of high intermediate dehydration temperature, complex process, high production cost and energy consumption, poor product chromaticity and stability, difficult solvent recovery and prominent safety and environmental protection risks in the existing production process; the melamine polyphosphate with good chromaticity and stability can be prepared in one step on the premise that high-temperature dehydration and solvent recovery are not needed, the process is simple and controllable, the production cost is low and the equipment requirement is low.
Owner:SHANDONG BROTHERS FLAME RETARDANT NEW MATERIALS CO LTD
An end-cloud collaborative speculative decoding acceleration method based on credit inertia
ActiveCN121835936BReliably generate text resultsAvoid invalid transfersNatural language data processingInference methodsSimulationCollaborative computing
The application discloses an end-cloud collaborative speculative decoding acceleration method based on credit inertia, and belongs to the field of edge-cloud collaborative computing. The method improves the efficiency and stability of end-cloud collaborative generation through credit inertia perception, adaptive threshold prediction and asynchronous parallel scheduling. Firstly, the Jensen-Shannon divergence is used to measure the distribution difference between the draft model and the cloud target model, and a robust distribution-level verification criterion is constructed. Then, the "credit inertia" feature of the historical window is extracted through the exponential weighted moving average, and the acceptance threshold and the draft window length are adaptively adjusted through a lightweight threshold prediction network. Finally, the gradual preview and concurrent mechanism is introduced, and the draft generation, cloud pre-trial and full trial are decoupled into an asynchronous pipeline, thereby significantly reducing the end-to-end delay, reducing invalid rollback, and improving the effective token throughput rate under the premise of ensuring the generation quality, and being suitable for high real-time applications such as mobile album, multi-modal retrieval and description generation.
Owner:HUAZHONG UNIV OF SCI & TECH
A silicone sealant production device
The utility model discloses a silicone sealant production device relates to sealant production technical field, including the reation kettle, the inlet of reation kettle is respectively through pipeline communication to have silica rubber jar, white carbon black jar, calcium carbonate jar, anti -settling agent jar, plasticizing agent jar, crosslinking agent jar and catalyst jar, the outlet of reation kettle is through pipeline communication to have double screw extruder, the outlet of double screw extruder is through pipeline communication to have product jar. Through adding anti -settling agent (such as organic bentonite) to reation kettle, with silica rubber, filler (white carbon black, calcium carbonate), plasticizing agent synchronous mixing, anti -settling agent can form three -dimensional net structure, prevent filler and settle in the subsequent storage and construction process, and the uniformity of silicone sealant is good, and the product quality is high.
Owner:SHANDONG SANZE SILICONE CO LTD
Composite production equipment and production method of powdery accelerator for sprayed concrete based on modification
PendingCN121775729AHigh precisionimprove continuityTransportation and packagingMixer accessoriesShotcreteMechanical engineering
Owner:TAIAN CITY TAIXIN BUILDING MATERIAL TECH
Spiral injection flow-aiding device for feeding
PendingCN121799966Aavoid cloggingAvoid accumulation problems in conveyor pathsLarge containersLoading/unloadingIron powderElectric machine
The invention relates to the technical field of material conveying, in particular to a feeding screw blowing flow aiding device which comprises a stock bin, a feeding screw, a driving motor and a vibration motor, and a plurality of air pipe nozzles are arranged on a discharge port of the stock bin and a shell of the feeding screw at intervals in the material conveying direction; all the air pipe nozzles are connected to the same air source through a pipeline and are uniformly controlled by an electromagnetic valve to be opened and closed; and the electromagnetic valve is electrically connected with a driving motor of the feeding screw or is in linkage control with the driving motor, so that when the feeding screw is started, the air pipe nozzle synchronously sprays air flow. The blowing points are arranged at the positions prone to blockage and agglomeration, iron powder and other powder prone to agglomeration are effectively prevented from blocking a material opening or agglomerating and caking in the conveying process through airflow, and therefore the situation that a feeding spiral motor alarms and stops due to the fact that the load is too large is avoided, the conveying efficiency and the system reliability are improved, and the maintenance cost is reduced.
Owner:LINZHOU GUANGYUAN NEW MATERIAL TECH
Modularized micro-reaction system for synthesizing polycarboxylate superplasticizer
PendingCN121847028AHigh Molecular Weight DistributionImprove performance consistencyProcess control/regulationChemical/physical/physico-chemical microreactorsAcid waterModular design
The invention discloses a modular micro-reaction system for synthesis of a polycarboxylate superplasticizer, and relates to the technical field of synthesis of polycarboxylate superplasticizers, the system comprises the following components: a raw material supply module, a raw material mixing module, a molecular weight regulation and control module, a reaction curing module and a product storage module; according to the invention, modularized splitting and collaborative linkage of the whole synthesis process of the polycarboxylate superplasticizer are realized, all links are accurately controlled and efficiently linked, and the raw materials are stably and flexibly fed and efficiently mixed; molecular weight regulation and control are real-time and dynamic, performance consistency is improved, and intelligent upgrading is promoted; reaction curing and product storage are optimized, the product quality and production continuity are guaranteed, and the maintenance cost is reduced; the universality and the expandability are enhanced through the overall modular design, different requirements can be flexibly met, and technical support is provided for large-scale and high-quality production.
Owner:GUANGXI NEW GUANGJIAN NEW MATERIAL CO LTD +1
Support structure of opposite vertical type SSR optocoupler
ActiveCN224205070UAvoid the risk of overflow to the photosensitive thyristor chiplow costElectronic switchingSilicon-controlled rectifierEngineering physics
The utility model relates to the technical field of SSR optocouplers, in particular to a support structure of a vertical SSR optocoupler. Through the symmetrical design of the PT support and the IR support and the opposite distribution of the PT base island and the IR base island, the direct light path alignment of the light emitting diode and the bidirectional photosensitive silicon controlled rectifier is realized, the light transmission efficiency is obviously improved, the L-shaped output pin extends to the end part of the adjacent pin, and the PT base island is arranged, so that the bidirectional silicon controlled rectifier and the photosensitive silicon controlled rectifier are respectively arranged on different base islands, and the light transmission efficiency is improved. The risk that insulating glue overflows to the photosensitive silicon controlled rectifier chip is avoided, the short circuit probability is reduced, meanwhile, the discrete base island layout optimizes a conductive path, the number of conductive wires is reduced to the minimum, the gold wire material cost and quality hidden dangers such as wire collapse and wire breakage in the wire welding process are reduced, and the production yield and the product reliability are improved; the technical problems that after an existing SSR optocoupler support structure is packaged into an SSR optocoupler, the light transmission efficiency is low, glue is prone to overflowing to form a short circuit, and the number of electric leads is large are solved.
Owner:苏州泓冠半导体有限公司