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27results about How to "Suppress overflow" patented technology

A water-based high-lubricity cutting fluid and preparation method thereof

The present invention relates to the technical field of cutting fluids, and in particular to a water-based high-lubricity cutting fluid and a preparation method thereof, comprising triethanolamine, an oily corrosion inhibitor, a lubricating additive, benzotriazole, a surfactant, a potassium hydroxide solution, a pH regulator and deionized water. The water-based high-lubricity cutting fluid in the present invention is compounded by lubricating additives, triethanolamine, an oily corrosion inhibitor, benzotriazole, a surfactant and the like, wherein the sulfide fatty acid ester embedded in the lubricating additive is thrown out from the pores under the action of centrifugal force when subjected to a high centrifugal speed, and adheres to the metal surface to form a dense sulfide film, which plays a lubricating role, can effectively reduce shear stress, reduce friction and power consumption, reduce the temperature of the friction part between the tool and the workpiece and the tool wear, improve the cutting performance of the workpiece material, and improve the lubrication performance of the cutting fluid, so that it has the characteristics of small usage and high cutting quality.
Owner:DONGGUAN QINZHEN LUBRICATION TECH CO LTD

High-rate-performance sodium ion battery positive electrode material as well as preparation method and application thereof

The invention discloses a high-rate-performance sodium ion battery positive electrode material and a preparation method and application thereof.The preparation method comprises the steps that a Na source, a Ni source, a Mn source, a Sn source, a Li source and a Ti source are mixed to be uniform, and a first substance is obtained; and sintering the first substance in an air atmosphere at 900-1000 DEG C for 1-12 hours, and cooling along with a furnace to obtain the high-rate-performance sodium ion battery positive electrode material. The high-rate-performance sodium-ion battery positive electrode material is a Li and Ti co-doped nickel-manganese-tin layered oxide positive electrode material, and the rate performance and the cycling stability of the sodium-ion battery are remarkably improved through the Li and Ti co-doping synergistic effect. The sodium-ion battery prepared from the high-rate-performance sodium-ion battery positive electrode material has high rate performance and high cycle stability, and has potential application value in sodium-ion batteries, especially fast-charging solid-state sodium-ion batteries.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Double-blade suction and discharge structure of centrifugal fan

ActiveCN224396755Usuppress overflowImprove axial air suction capacityPump componentsPumpsElectric machineryCentrifugal fan
The application discloses a double-fan-leaf suction-discharge structure of a centrifugal fan, and belongs to the technical field of centrifugal fans. The double-fan-leaf suction-discharge structure comprises an impeller, a volute, an air inlet, an air outlet, a motor, a connecting shaft, a bearing and a flow guide channel. The impeller is designed in a double-fan-leaf mode and comprises centrifugal blades and axial-flow blades. The impeller is located in the interior of the volute, and the interior of the volute is further provided with the flow guide channel. The application has novel design and ingenious device. The double-fan-leaf suction-discharge structure is arranged in the interior of the impeller shell and comprises centrifugal blades and axial-flow blades. The external gas is guided to enter the gap between the centrifugal blades in an orderly manner, the axial air suction capacity is improved, the phenomenon that the air pushed by the centrifugal blades overflows along the axial direction is inhibited, and thus the generation of backflow is reduced. The flow guide channel is arranged, the main channel changes from narrow to wide from the air inlet to the air outlet, the entering gas can be stably transported from the air inlet to the air outlet under the action of the main channel, the gas discharge efficiency is improved, and the discharge capacity is increased.
Owner:GREEN INTELLIGENCE ELECTRICAL EQUIP CO LTD NANHAI DISTRICT FOSHAN CITY

Manufacturing method of semiconductor module and semiconductor module

PendingCN119626922ASuppression of scatteringsuppress overflowSemiconductor/solid-state device manufacturingRough surfaceSemiconductor chip
The invention provides a semiconductor module and a method of manufacturing the same, which can discharge a solvent in a short time and suppress scattering and overflow of sintered metal even if a semiconductor chip is disposed on a sintered metal slurry in which the solvent remains and heated to discharge a solvent component and sinter-bonded to the semiconductor chip. A method for manufacturing a semiconductor module in which a semiconductor chip is sintered and bonded on a wiring layer includes: a rough surface forming step of forming a continuous rough surface in at least a partial region of a wiring layer surface; a slurry preparation step for preparing a sintered metal slurry containing metal particles and a solvent so as to overlap a part of the continuous rough surface; a semiconductor chip arrangement step in which a semiconductor chip is arranged on the sintered metal paste in which the solvent remains; and a sintering step for sintering and bonding the semiconductor chip while discharging the solvent component by heating, the wiring layer being a hydrophilic surface with respect to the solvent, and the continuous rough surface inside the region where the sintered metal paste is disposed being connected to the continuous rough surface outside the region.
Owner:HITACHI POWER SEMICON DEVICE LTD

Furnace end smoke treatment device of tamping coke oven

The utility model relates to the technical field of coke oven production equipment, and discloses a tamping coke oven furnace end smoke treatment device which comprises a coke oven, a dust collection device and a dust suppression spraying device, a plurality of groups of oven doors are arranged on the front side of the coke oven, and the dust collection device is arranged at the top of the coke oven through a support and comprises a dust collection main pipe and a plurality of groups of dust collection pipes. One end of the dust collecting pipe is connected with the dust collecting main pipe, the other end of the dust collecting pipe penetrates through the support to be arranged above the furnace door, the dust suppression spraying device comprises a plurality of nozzles and a plurality of spraying pipes, water inlets of the nozzles are connected with the spraying pipes, and the nozzles are arranged on the outer side walls of the dust collecting pipes. According to the utility model, furnace end smoke can be treated by combining various dust removal and suppression modes, smoke diffusion can be inhibited, smoke overflow is reduced, the treatment effect of the furnace end smoke is effectively improved, and the air quality is improved.
Owner:LUBAN TECH (SHANXI) CO LTD

Battery pack

PendingCN122315221Asuppress overflowElectrical batteryAdhesive
This invention provides a battery pack capable of preventing adhesive spillage between a battery module formed by stacking multiple battery cells and a constraint member constraining the multiple battery cells, thus preventing contact between the adhesive and the terminals of the battery cells. A battery pack includes: a battery module formed by stacking multiple battery cells with terminals disposed on their upper surfaces in the thickness direction; a constraint member constraining the multiple battery cells in the thickness direction; an adhesive disposed between a side of the battery cell facing a direction orthogonal to the thickness direction when viewed from above and the constraint member; and an insulating member, at least a portion of which is disposed between the constraint member and the side of the battery cell on a side further upward than the adhesive.
Owner:TOYOTA JIDOSHA KK

Cationic disordered lithium-rich rock salt positive electrode material and preparation method thereof, positive electrode sheet and lithium battery

The present application relates to the field of lithium batteries, and discloses a cationic disordered lithium-rich rock salt positive electrode material and a preparation method thereof, as well as a positive electrode sheet and a lithium battery. The positive electrode material described in the present application includes a core layer material and an epitaxial coherent surface layer material; the core layer material is a cationic disordered lithium-rich rock salt structure material, and the chemical formula is Li a Mn 0.4 M b O2, the M represents a transition metal, 1.1≤a≤1.3, b=(2.8‑a) / m, m is the valence of the transition metal M; the epitaxial coherent surface material covers the core material, and the chemical formula is Li a‑ 2x Mn 0.4 M b O 2‑x , 0<x<0.1. The cathode material described in the present application uses aluminum salt to modify the surface of the cationic disordered lithium-rich rock salt structure material, and forms a gradient lithium-poor layer in situ on its surface, which effectively inhibits the generation and overflow of surface molecular oxygen and significantly enhances the stability of the material structure.
Owner:SUZHOU UNIV

Panel furniture quick-mounting concealed conductive system

The application discloses a kind of fast installation type hidden conductive systems of panel furniture, it is related to the field of household, including: cabinet, conductive rail, power supply terminal, adapter terminal, power terminal, power transformer, by flexible change the installation position of conductive rail to realize specific power supply path trend;By embedding power terminal in layer board to realize cabinet power supply full coverage, conductive rail is embedded into installation slot, realizes hidden conduction and effectively suppresses harmful substance overflow in panel;Cabinet side plate vertical power transmission, roof and bottom plate transverse power transmission, can concentrate power supply position, according to the required power to select high-power power supply;Strip light and wiring groove are set in layer board, realize the illumination demand of specific part in cabinet and hide wiring;Conductive component is embedded into panel by point contact power supply, realizes the hiding of spare part;Setting multiple layer boards, increase side plate and back plate, realize the individualization of user's customization, flexibly set conductive component, realize the full hiding and full coverage of cabinet conductive path.
Owner:博洛尼智能科技(青岛)有限公司

Deodorizing and urine scale removing foaming agent as well as preparation method and application thereof

The invention discloses a deodorizing and urine scale removing foaming agent as well as a preparation method and application thereof. The foaming agent comprises the following components: 10%-20% of fatty alcohol polyoxyethylene ether sodium sulfate, 1%-5% of an auxiliary agent, 1%-4% of organic acid, 2%-6% of metal salt, 0.1%-0.5% of a reducing agent and 68%-77% of water. Physical deodorization is changed into chemical reaction deodorization, odor molecules are directly decomposed, the foam layer is used for inhibiting odor gas from overflowing, the solubility of the odor molecules in water is increased, the reaction time of deodorization components and the odor molecules is prolonged, and the deodorization efficiency is improved; after the odor molecules react with the deodorization components, precipitates or soluble salts are generated and discharged along with flushing water; due to the addition of deodorization and urine scale removal components, the foamability of the foaming agent is not influenced, the reaction is carried out in water, the reaction speed is high, the deodorization speed is high, and the pleasure of a user during use is improved.
Owner:FOSHAN LEHUA HENGYE KITCHEN & BATHROOM CO LTD +1

Adhesive composition, and adhesive sheet, laminate, and printed wiring board containing same

Provided are: an adhesive composition which has excellent adhesiveness and solder heat resistance, exhibits excellent adhesiveness even after being exposed to a high-temperature environment for a long period of time, has good circuit embedding properties, and is capable of suppressing excess resin overflow; and an adhesive sheet, a laminate, and a printed wiring board which contain the adhesive composition. An adhesive composition containing a polyester resin (A) and an epoxy resin (B), the epoxy resin (B) containing at least two epoxy resins (b) having a nitrogen atom, one of the two epoxy resins being (b1) or less and the other being (b2) or less. (b1) a trifunctional or less resin; and (b2) 4 or more functional resins.
Owner:东洋纺艾睦希株式会社

Improved chemical small-scale test stirring device

The utility model belongs to the technical field of chemical equipment, and discloses an improved chemical small-scale test stirring device. The improved chemical small-scale test stirring device comprises a stirring mechanism and a reaction container, the stirring mechanism is detachably installed on the reaction container, raw materials to be stirred can be contained in the reaction container, and the stirring mechanism can stir the raw materials to be stirred in the reaction container. According to the utility model, through the modularized design, the rapid installation and disassembly can be realized, the operation can be completed by only one person, the disadvantage that the cooperation of multiple persons is needed in the prior art is solved, and the experiment efficiency is greatly improved. Through modular arrangement, all parts in the device can be replaced and cleaned in time, and the influence of residual substances on the device on subsequent experiments is avoided.
Owner:TIANJIN FENGCHUAN CHEM REAGENT TECH CO LTD

Sectional material machining equipment for seat framework

The utility model relates to the technical field of seat production and processing, and discloses a seat framework profile processing device which comprises a machine table, a material guide groove used for receiving materials is fixedly installed on the side wall of the machine table, a guide assembly used for decelerating profiles is installed at the top of the material guide groove, and the guide assembly comprises an outer rotating body, a storage body, a rotating shaft and a paddle board. The paddle plate is connected with the outer rotating body through the rotating shaft, friction force between the profile and the outer rotating body can push the outer rotating body to drive the rotating shaft to rotate, the rotating shaft drives the paddle plate to rotate and stir liquid in the storage body cavity, the liquid can be non-Newtonian liquid, the rotating shaft and the outer rotating body are limited to rotate too fast through the liquid, and then the sliding profile is decelerated. By means of the guide chute, the profile can slowly slide through the top face of the inclined guide chute at a constant speed, impact damage caused by the fact that the initial speed of the formed profile is too high after the profile slides off the guide chute is reduced, the better protection effect on the profile is achieved, the structure is simplified, and installation is easy and convenient.
Owner:JILIN CRAFTSMAN ELECTROMECHANICAL EQUIP CO LTD

Traffic signal control method based on generalization TUC and maximum pressure strategy of cv data

The invention discloses a traffic signal control method based on a generalized TUC and a maximum pressure strategy of cv data, and the method comprises the steps: taking a #-shaped road network as a control region, carrying out the traffic signal control periodically, and carrying out the traffic signal control of all intersections in the control region through employing the maximum pressure strategy in a first period; starting from a second period, determining a supersaturated intersection based on video data collected by cv equipment arranged at each intersection and each entrance in the control area in the previous period, and determining an associated intersection of the supersaturated intersection; then, traffic signal control is carried out on all the supersaturated intersections and the associated intersections thereof by adopting a TUC strategy by adopting the associated intersections of all the supersaturated intersections in the current period, and traffic signal control is carried out on other intersections by adopting a maximum pressure strategy; the method has the advantages of being high in calculation speed, high in real-time performance, high in control performance under the supersaturated traffic condition and high in control precision.
Owner:NINGBO UNIV

Matting method, matting model training method and related device

This application relates to the field of image processing, and provides a matting method, a matting model training method, and related equipment. By training a matting model, the method performs matting processing on the image to be matted to obtain a foreground image. The matting model then performs overflow suppression processing on the foreground image to obtain the target foreground image. This method reduces the difficulty of matting and improves its efficiency and effectiveness.
Owner:SHENZHEN ZEGO TECH CO LTD +1

Algalnp red light micro-led chip with high al component polarization induced barrier layer and preparation method

PendingCN122294659AInhibit lateral diffusionsuppress overflowValence bandQuantum efficiency
This application discloses an AlGaInP red micro-LED chip with a high Al composition polarization-induced barrier layer and its fabrication method. The core innovation lies in the use of an Al composition in the barrier layer of the quantum well structure. x2 Ga 1‑x2 ) y2 InP gradually changes to Al 0.5 In 0.5 The high Al composition structure of P elevates the valence band level to 250-320 meV, significantly enhancing carrier confinement capability. Simultaneously, the barrier layer employs low-concentration p-type doping, inducing the formation of a three-dimensional hole gas through the polarization effect of the gradual Al composition change, allowing the hole concentration to break through the doping limit and avoiding the luminescence quenching problem caused by high doping. This solves the core problems of insufficient carrier confinement, low hole injection efficiency, and poor high-temperature stability in existing red Micro-LED chips. The device's external quantum efficiency, high-temperature retention rate, and long-term reliability are all significantly improved. The fabrication process is compatible with existing production lines and is applicable to multiple fields.
Owner:WEIJIU (SUZHOU) OPTOELECTRONICS TECHNOLOGY CO LTD

Crushing device for metallurgical waste residue treatment

The utility model discloses a smashing device for metallurgical waste residue treatment, and relates to the technical field of smashing devices. The device comprises a crusher, a crushing roller is rotatably connected in the crusher, a crushing cylinder is arranged at the bottom end of the crusher, a filter cylinder is fixedly connected in the crushing cylinder, and a rotating rod is rotatably connected in the crushing cylinder; a crushing roller is driven by a servo motor to rotate, waste residues are primarily crushed, the waste residues subjected to primary crushing fall into a crushing cylinder through a feeding pipe, the servo motor drives a driving wheel to rotate, meanwhile, the outer sides of the driving wheel and a driven wheel are in transmission connection through a transmission belt, and meanwhile the driven wheel is driven to rotate; and therefore, the rotating rod, the crushing cutter and the bolt blade are driven to rotate, the waste residues are conveyed into the filter cylinder, the crushing cutter is used for performing secondary crushing on the waste residues, the crushed waste residues meeting the particle size requirement are discharged through gaps of the filter cylinder, and the crushing effect is further improved.
Owner:XIAN YANSHI METALLURGY TECH

High-water-stability sodium-ion battery positive electrode material as well as preparation method and application thereof

The invention discloses a sodium ion battery positive electrode material with high water stability and a preparation method and application thereof, the preparation method comprises the following steps: uniformly mixing a sodium source, a nickel source, a manganese source, a tin source, a lithium source and a titanium source to obtain a first substance; and sintering the first substance in an air atmosphere at 900-1000 DEG C for 1-12 hours, and cooling along with a furnace to obtain the sodium-ion battery positive electrode material with high water stability. The sodium-ion battery positive electrode material with high water stability is a Li, Ti and Sn co-doped nickel-manganese-tin-based layered oxide positive electrode material, and the water stability of the nickel-manganese-tin-based layered oxide positive electrode material is remarkably improved through the co-doping synergistic effect of Li, Ti and Sn; the electrochemical performance of the composite material is not changed after the composite material is stored in air with the relative humidity of 45% for 2 months and even soaked in water for 1 week, and the original specific discharge capacity and cycle stability are still kept.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Low-melting-point alloy composite heat-conducting fin as well as preparation method and application thereof

PendingCN119392035AImprove thermal uniformitysuppress overflowHeat managementAlloy composite
The invention relates to the field of heat management, in particular to a low-melting-point alloy composite heat-conducting fin and a preparation method and application thereof. The preparation method of the low-melting-point alloy composite heat-conducting fin comprises the following steps: 1) heating and stirring a low-melting-point alloy and graphene to obtain a pasty mixture; (2) cooling the pasty mixture, and then solidifying and forming; 3, the block-shaped mixture obtained through solidification forming is pressed into sheets, and the low-melting-point alloy composite heat-conducting fin is obtained.According to the preparation method, the viscosity of molten alloy is effectively improved, metal precipitation is inhibited, meanwhile, the temperature uniformity of the heat-conducting fin is improved after the heat-conducting fin is heated through the super-strong heat-conducting property of graphene, and therefore the performance of the heat-conducting fin is better exerted.
Owner:YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD

A method for preparing a quantum dot light emitting diode with a double electron transport layer

PendingCN122719335Asuppress overflowReduce leakage current
This invention relates to the field of optoelectronic materials and devices, and specifically to a method for fabricating a quantum dot light-emitting diode with a dual electron transport layer. The method includes fabricating a first electron transport layer on a first electrode disposed on a substrate, the first electron transport layer comprising nanoparticles; fabricating a second electron transport layer on the first electron transport layer, the second electron transport layer comprising ZnO nanoparticles; wherein the deposition amount per unit area of ​​the second electron transport layer is less than that of the first electron transport layer, and / or the thickness of the second electron transport layer is less than the thickness of the first electron transport layer; fabricating a quantum dot light-emitting layer on the second electron transport layer; and sequentially fabricating a hole transport layer, a hole injection layer, and a second electrode on the quantum dot light-emitting layer. This invention improves the film morphology, compensates for insufficient electron transport, and suppresses excessive electron injection caused by ZnO, thereby achieving a more reasonable electron-hole ratio within the quantum dot light-emitting layer.
Owner:TAIYUAN INST OF TECH

Preparation method of aluminum alloy matte sand surface oxidation film layer

The invention relates to a preparation method of an aluminum alloy matte sand surface oxidation film layer, belongs to the technical field of metal surface treatment, and solves the problems that in the prior art, an oxidation film layer is insufficient in wear resistance and corrosion resistance, large in color difference and high in reflection, light pollution is easily caused, and an adopted acid polishing process is high in cost and easily causes environmental pollution. The invention provides a preparation method of an aluminum alloy matte sand surface oxidation film layer. A part with the aluminum alloy matte sand surface oxidation film layer is obtained after sand blasting pretreatment, alkaline chemical polishing, anodic oxidation, dyeing and sealing treatment. A polishing solution adopted in alkaline chemical polishing contains sodium hydroxide, sodium nitrate, copper sulfate pentahydrate and triethanolamine. The preparation method is simple in process, green, environment-friendly and low in cost; and the prepared oxidation film layer has good alcohol resistance and corrosion resistance. The color is high in quality and uniform, the frosted texture is good, light pollution is not generated, and the method can be widely applied to optical systems and instruments in aerospace, field scientific investigation and other scenes.
Owner:HENAN PINGYUAN OPTO ELECTRONICS CO LTD

Photovoltaic edge seal film and photovoltaic module

ActiveCN224394800UInhibition of mobilitysuppress overflowFilm/foil adhesivesThermodynamicsAdhesive
The present disclosure relates to the field of photovoltaic technology, and particularly relates to a photovoltaic edge sealing adhesive film and a photovoltaic module. The photovoltaic edge sealing adhesive film provided by the present disclosure comprises a water-blocking layer, a heat-shrinkable layer and a functional adhesive layer arranged in layers, the heat-shrinkable layer is arranged between the water-blocking layer and the functional adhesive layer, and the functional adhesive layer is used for connecting with a laminated part. The heat-shrinkable layer will shrink by heat, and directional shrinkage will be generated under temperature triggering. Through the inward mechanical restraint force, the flow and overflow of the encapsulation adhesive film to the edges of the module are effectively inhibited, and the adhesive film amount of the four edges of the photovoltaic module tends to be consistent with the central region.
Owner:RISEN ENERGY CO LTD

Device, timepiece, and method for manufacturing device

The invention provides a device, a timepiece, and a method for manufacturing the device, which can inhibit the overflow of an adhesive. A timepiece (1), which is a device according to an embodiment of the present invention, is provided with: a case (11) having a housing section (15); and a cover (13) which is disposed in the housing part (15) of the housing (11), in which a first recess (21h) is formed in either a bottom surface part in the housing part (15) of the housing (11) or a surface of the cover (13) facing the bottom surface part, and a second recess (13f) is formed in the outer peripheral surface of the cover (13), and which has an adhesive release structure.
Owner:CASIO COMPUTER CO LTD

Laundry treating apparatus

ActiveCN113502642Bsuppress overflowinhibit ventilationOther washing machinesTextiles and paperProcess engineeringLaundry
Provided is a laundry treating apparatus which, in a configuration in which a tank is provided with a replenishing port and a lid, can suppress overflow of a laundry treating agent in the tank from between the lid and the replenishing port, and solidification of the laundry treating agent in the tank due to aeration through a gap between the lid and the replenishing port. The laundry treating apparatus of the present embodiment includes a laundry treating tub that houses laundry; a tank that stores a laundry treating agent that treats the laundry; and an automatic feeding portion that feeds the laundry treating agent stored in the tank into the laundry treating tub, the tank including a replenishing port for replenishing the laundry treating agent into the interior, a lid that opens and closes the replenishing port, and a seal member that seals between the lid and the replenishing port in a closed state in which the lid occludes the replenishing port.
Owner:MIDEA GROUP CO LTD

High-risk pollution source management and control method for irregular refuse landfill

The invention provides an irregular refuse landfill high-risk pollution source management and control method which comprises the following steps: determining a high-risk pollution source, and delimiting an anti-seepage project area; grouting holes are formed in the anti-seepage engineering area, grouting pipes are arranged in the grouting holes, the grouting pipes penetrate through the landfill layer and enter the anti-seepage target layer, a stop-grouting plug is arranged on each grouting pipe, a grouting section is arranged between each stop-grouting plug and the bottom end of the corresponding grouting pipe, and a grout outlet hole is formed in each grouting section; grouting is conducted in the grouting pipe in a static pressure grouting mode, a waterproof top plate is formed at the lower end of the landfill layer, grouting needs to be conducted 3-4 times before final setting of the grout, and the concentration and the grouting pressure of the initial grout are both smaller than those of the re-grouting grout; and interval grouting is conducted on the grouting pipes. The static pressure grouting technology is adopted to construct and restore the weak area of the waterproof roof of the confined aquifer at the bottom of the high-risk pollution source, grout can be effectively restrained from overflowing upwards, the grout enters an anti-seepage target layer as much as possible, the grout is saved, and the grouting anti-seepage effect is improved.
Owner:HENAN PROVINCIAL GEOLOGICAL BUREAU GEOLOGICAL DISASTER PREVENTION & CONTROL CENT

Vision detection method and system based on adaptive light and exposure cooperative control

PendingCN122730817AEliminate phase lagEliminate overshoot problems
The application discloses a visual detection method and system based on adaptive light and exposure collaborative control, the method comprising: acquiring a type label of a detected workpiece product, acquiring a rough image with extremely short exposure in a pre-check mode, identifying the reflectivity distribution, roughness level and transmission coefficient of the workpiece through a lightweight neural network; generating a future ambient light prediction sequence through a time series prediction model by using historical multispectral data of an ambient light sensor array; dynamically constructing a weighted multi-index joint objective function according to the material characteristics of the workpiece; taking adjustable light source parameters and camera exposure gain as state variables, taking predicted ambient light as disturbance, and solving the joint optimal control sequence of the light source and the camera by the model prediction control module; and switching to the formal detection mode to collect images and feedback the objective function value to realize rolling optimization. Through the active regulation of prediction compensation, material adaptive weight and light source aging compensation, the imaging stability and detection reliability of multiple types of workpieces under ambient light changes are improved.
Owner:DONG GUAN SHI LING DIAN CE KONG JI SHU YOU XIAN GONG SI

A method, system, device, and medium for ultra-large scale graph matrix factorization

This application relates to a method, system, device, and medium for decomposing ultra-large-scale graph matrices. The method adaptively determines the upper limit of the spectral interval by extracting the degree distribution and community structure of the graph, and constructs a Chebyshev filter accordingly to filter the initial vector to amplify the target feature gap. Using the filtered vector as the starting block, block Lanczos iteration is performed to obtain Ritz values ​​and approximate eigenvectors. Convergence is determined based on the Ritz value gap and residuals. When stagnation occurs, the spectral interval is dynamically corrected based on the Ritz value distribution, and the filter is reconstructed. The approximate eigenvectors are then filtered again to restart the process, forming an estimation-filtering-convergence closed loop. Thus, the online spectral interval estimation, Chebyshev acceleration, and deep block Lanczos work together to suppress spectral radius overflow and eigenvector pseudo-alignment caused by extreme eigenvalues, overcoming convergence stagnation and achieving stable and efficient large-scale graph decomposition.
Owner:XIJING UNIV