Patents
Literature
44results about How to "Avoid separability" 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
Clamping device for thin-wall whole pipe fatigue test and test method
PendingCN121783684Aguarantee authenticityGuaranteed accuracyNuclear energy generationMaterial strength using repeated/pulsating forcesStress concentrationAdhesive belt
The invention provides a clamping device for a thin-wall whole pipe fatigue test and a test method, and belongs to the technical field of clamping devices. The device comprises clamping cushion blocks which are fixedly connected to two ends of a thin-wall whole tube sample main body and are used for transmitting test force; the high polymer material film adhesive tape is wound on a transition area of the clamping cushion block and the thin-wall whole pipe sample main body; the chock plugs are used for being plugged into the two ends of the thin-wall whole-tube sample main body, and packing paper is installed between the chock plugs and the inner wall of the thin-wall whole-tube sample main body and used for supporting the inner wall of the sample and evenly transmitting test force. The clamping cushion blocks are fixedly connected to the two ends of the sample and matched with the high polymer material film adhesive tape to reduce friction, the chock plugs are wound around the packing paper to support the inner wall, a stable clamping structure is formed, and it is ensured that fatigue fracture occurs in the working section. The problems of clamping stress concentration and fracture of a non-working section can be effectively avoided, the accuracy of a fatigue life evaluation result of the whole thin-wall pipe is improved, and the method can be widely applied to high-cycle and low-cycle fatigue performance tests under different conditions.
Owner:NCS TESTING TECHNOLOGY CO LTD
Thermal decomposition preparation process of hafnium carbide precursor
PendingCN122079161Aevenly dispersedImprove uniformityMaterial nanotechnologyCarbon compoundsMethacrylateAcrylonitrile
This invention relates to the field of hafnium carbide technology and discloses a thermal decomposition preparation process for hafnium carbide precursors. The process includes: dissolving hafnium tetrachloride in anhydrous ethanol, adding propylene oxide dropwise for neutralization and acid removal to obtain a neutral ethanol-hafnium precursor solution; adding ethyl acetoacetate methacrylate and heating for coordination to obtain a hafnium coordination monomer solution; adding acrylonitrile and an initiator and heating for polymerization; when the viscosity of the reaction solution increases, injecting a dimethyl sulfoxide hot solution of melamine as a locking liquid; precipitating, separating, and drying to obtain the hafnium carbide precursor; and after oxidative crosslinking treatment, calcining at high temperature under an inert atmosphere to undergo carbothermic reduction to obtain hafnium carbide powder. This invention achieves molecular-level dispersion of precursor components through liquid-phase coordination and in-situ network locking, effectively reducing the reaction temperature and inhibiting grain agglomeration, thus producing high-purity, ultrafine hafnium carbide powder.
Owner:FORSMAN TECH (BEIJING) CO LTD
A health-care patch for treating neck-shoulder-lumbar-leg pain and a preparation method thereof
PendingCN122251505Areduce polarityavoid separabilityAnthropod material medical ingredientsAntipyreticNeck shoulderPharmaceutical drug
The present application relates to the technical field of external use patch, disclose a kind of neck shoulder waist leg pain health care patch and its preparation method, the health care patch includes backing layer, ointment layer and anti-adhesion release layer;Ointment layer raw material includes: traditional Chinese medicine extract flow leaching paste, L- (+) -tartaric acid, PVP K30, PEG-400, ternary eutectic solvent, polyacrylate pressure sensitive adhesive matrix and ultrafine medicinal powder.Preparation, after flow leaching paste, tartaric acid etc. are mixed, gel precursor is formed by vacuum dewatering and dealcoholization, swelling is added again with eutectic solvent, and then mixed with pressure sensitive adhesive matrix and medicinal powder high shear, finally coating solidification.The present application constructs physical crosslinking gel network in colloid interior and promotes effective component acid-base salt formation, effectively avoids polar component crystallization precipitation, reduces the skin irritation caused by drug burst release, simultaneously improves the cohesion of ointment, realizes long-acting smooth drug release.
Owner:HENAN RUNLING PHARM CO LTD
Degradable food packaging bag and preparation process thereof
ActiveCN121224270BAddress degradabilitySolve the mechanical propertiesFlexible coversWrappersPolymer sciencePolybutylene
The application relates to the technical field of food packaging, in particular to a degradable food packaging bag and a preparation process thereof. The packaging bag comprises two base films and a functional adhesive layer which is compounded between the two base films. The base film is made of raw materials including the following components in parts by mass: polybutylene adipate terephthalate 50-70 parts; polylactic acid 20-35 parts; corn starch 10-25 parts; and a compatilizer 2-6 parts. The functional adhesive layer is made of raw materials including the following components in parts by mass: water-based polyurethane emulsion 100 parts; hydrophobic silicon dioxide particles 3-15 parts; chitosan derivative modified micron zinc oxide 5-20 parts; and a plasticizer 1-5 parts. The application provides a method which considers the degradation, antibacterial property and mechanical property, and has the effects of being safer and more reliable.
Owner:ZHEJIANG SUPER STAR PACKAGING MATERIAL CO LTD
Method, device, equipment, storage medium and program product for communication message
The disclosure provides a method, device, equipment, storage medium and program product of communication message, which are applied to a server and a client, and relate to the technical fields of artificial intelligence such as streaming media technology, data communication, communication protocol control and the like. A specific embodiment of the method applied to the server comprises: in response to receiving communication invitation information sent by the client, assigning a first processing instance to the client from candidate processing instances; generating communication response information based on indication information for the first processing instance; returning the communication response information to the client; and in response to receiving a STUN message associated with the indication information sent by the client, providing the STUN message to the first processing instance. Thus, the state of the session of the same client at the processing instance level can be ensured to be consistent, so as to realize more effective utilization of computing resources.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD
Modified photocurable oligomers and methods of making the same and photocurable 3d printing resins
This application provides a modified photocurable oligomer, its preparation method, and a photocurable 3D printing resin. The preparation method of the modified photocurable oligomer includes the following steps: providing an acrylic monomer, a triblock thermoplastic elastomer, a coupling agent, and a polyurethane acrylate; dissolving the triblock thermoplastic elastomer in the acrylic monomer to obtain a block copolymer mixed solution; adding the coupling agent to the block copolymer mixed solution to obtain a modified block copolymer mixed solution; adding the polyurethane acrylate to the modified block copolymer mixed solution, and mixing to obtain the modified photocurable oligomer. The modified photocurable oligomer, its preparation method, and the photocurable 3D printing resin provided in this application use a triblock thermoplastic elastomer as a toughening reinforcing phase, and chemically modify its surface using a coupling agent, enabling it to form a strong chemical bond interface with the polyurethane acrylate after pre-dispersion in the acrylic monomer.
Intrinsic fluorescent polyester elastomer and method for preparing the same
This invention relates to an intrinsically fluorescent polyester elastomer and its preparation method. The elastomer is copolymerized from vanillin-based aldehyde monomers with small-molecule cyano monomers and cyano-terminated polyethers or polyester diols via a Knoevenagel polycondensation reaction. By adjusting the molar fraction of the soft segment, a continuous transition from rigid fluorescent plastics to highly elastic fluorescent polyester elastomers can be achieved. The resulting material exhibits both high fluorescence quantum yield and high elongation at break, and can be applied in fields such as melt spinning, fluorescent anti-counterfeiting, and flexible optoelectronic devices.
Owner:SICHUAN UNIV
Preparation method and application of aluminum nitride powder
The application discloses a preparation method and application of aluminum nitride powder, and the preparation method comprises the following steps: S1: coating organic matter on the surface of aluminum oxide and carbonizing to obtain a carbon-coated precursor; S2: mixing and grinding the carbon-coated precursor with carbon material, and then sintering in a nitrogen atmosphere to obtain a sintered product; and S3: mixing the sintered product with a separation liquid, and separating to obtain the aluminum nitride powder; the separation liquid comprises solvent A and solvent B, the polarity of the solvent A is greater than that of the solvent B, the density of the solvent A is greater than that of the solvent B, and the polarity difference between the solvent A and the solvent B is greater than 5. The preparation method of the application can promote complete nitriding, avoid agglomeration between aluminum nitride particles, and thus prepare the aluminum nitride powder with a higher specific surface area, low oxygen content and low carbon impurity content by closely contacting the organic matter with the aluminum oxide particles and carbonizing, and then grinding and sintering with the carbon material.
Owner:NANCHONG THREE CIRCLE ELECTRONICS +2
A tilting duct with an asymmetric structure and an aircraft
PendingCN122078616AOffset loadIncrease the load-to-weight ratioPropellersRotocraftFlight vehicleClassical mechanics
This invention provides an asymmetrical tilting duct, belonging to the field of aircraft technology, including a duct shell. The duct shell is a non-closed arc structure along the circumferential direction, and the duct shell has a non-closed opening section on its circumference. The cross-section of the opening section is an airfoil with inverted upper and lower arcs. By designing the duct shell as a non-closed arc structure and setting a non-closed opening section with an inverted airfoil cross-section on its circumference, this invention breaks the symmetrical distribution of circumferential air pressure in the duct, forming a circumferential pressure difference that cannot be completely offset. This allows the duct to generate additional radial lift along the vertical direction of the fuselage while providing axial thrust, effectively offsetting part of the wing load and improving the aircraft's payload ratio.
Owner:HARBIN ENG UNIV
A two-phase solid-state electrolyte powder and a method of preparing the same
This invention relates to the field of solid-state battery technology and discloses a dual-phase solid electrolyte powder and its preparation method. The dual-phase solid electrolyte powder is a uniform composite of LATP (lithium aluminum titanium phosphate) and LLZTO (lithium lanthanum zirconium tantalum oxide), with a LATP to LLZTO weight ratio of 1:2 to 2:1, a particle size of 1 to 3 μm, and an ionic conductivity ≥2.3 × 10⁻⁶. ‑ ³S / cm. Its preparation method includes LATP precursor solution preparation, slurry preparation, spray pyrolysis, and high-temperature calcination steps. This invention, through the synergistic effect of a two-phase structure, combines the high bulk ionic conductivity of LATP with the good interfacial stability of LLZTO, effectively reducing interfacial impedance and suppressing Ti in LATP. 4+ The reduction reaction improves lithium-ion transport efficiency and cycle stability. Batteries using this electrolyte can achieve an initial discharge capacity of over 176 mAh / g, retain ≥88% capacity after 200 cycles, and exhibit excellent safety performance, making it widely applicable to various solid-state lithium-ion batteries.
Owner:KUNSHAN BLACK ROCK NEW MATERIAL TECH CO LTD
Current collector based on conductive polyimide film and application thereof
PendingCN121964652AImprove conductivitylight in massElectrode carriers/collectorsSecondary cellsEvaporation (deposition)Sputtering
The invention provides a current collector based on a conductive polyimide film and application thereof, and the current collector is obtained by mixing water-based polyamide acid or water-based polyimide with a conductive filler and then directly coating and curing to form a film or coating two side surfaces of a carrier film and then curing to form a film. According to the current collector based on the conductive polyimide film and the application of the current collector, the conductive polyimide film or the whole carrier film coated with the conductive polyimide film is directly used as the current collector, and the current collector has high heat resistance, low density and high conductivity of polyimide at the same time; and on the premise that the conductive metal film does not need to be deposited through expensive treatment such as evaporation, sputtering and the like, higher cycling stability can be shown.
Owner:ZHEJIANG OCAS NEW MATERIALS CO LTD
Wing plate structure for inhibiting secondary flow in pump guide vane body and hydraulic mechanical device
PendingCN121952905AImprove flow adhesionsuppression of secondary flowGeometric CADPump componentsImpellerAxial-flow pump
The invention provides a wing plate structure for inhibiting secondary flow in a pump guide vane body and a hydraulic mechanical device, and belongs to the technical field of fluid machinery. Comprising a main shaft, an impeller, a guide vane body and a wing plate, the wing plate is fixedly arranged in a runner between adjacent vanes of the guide vane body and obliquely arranged in the main flow direction, and the two ends of the wing plate are fixedly connected with the inner wall of the guide vane. Key geometric parameters such as the radial position, the circumferential deflection angle, the axial position, the wing type wrap angle, the inlet and outlet angle and the thickness of the wing plate are limited in a specific numerical value range, so that the wing plate forms a secondary flow guide face in a guide vane flow channel, fluid is guided to flow close to the wall, and transverse secondary flow and flow separation of a hub area is effectively weakened. The structure is simple and compact, flow field distribution in the guide vane can be remarkably improved, hydraulic loss is reduced, the hydraulic efficiency of the pump is improved, and the guide vane is suitable for a mixed-flow pump, an axial-flow pump and various fluid machines containing the guide vane.
Owner:JIANGSU UNIV
A method for preparing silver powder for ultrafine line printing
This application relates to the field of metal powder preparation technology, and in particular to a method for preparing silver powder for ultrafine line printing, comprising the following steps: preparing a silver ammonia solution and adding a dispersant, stirring to dissolve, adding a reducing agent solution, and aging to obtain nano-silver sol; forming a mixture of an initiator and deionized water, preparing aqueous solutions of acrylic acid and acrylamide separately, and adding them to the mixture for reaction, cooling and filtering to obtain an acrylic acid-acrylamide copolymer; weighing silver nitrate and deionized water, stirring to obtain solution A; weighing a reducing agent and deionized water, adjusting the pH to 1-2, and then adding the nano-silver sol and acrylic acid-acrylamide copolymer to obtain solution B; rapidly adding solution A to solution B, adding a surface modifier after the reaction is complete, aging, centrifuging, washing, and drying. The silver powder prepared by this application has the advantages of small average particle size, good overall uniformity, and small surface area, making it suitable for the field of ultrafine line printing.
Owner:SUZHOU YINRUI PHOTOELECTRIC MATERIAL TECH CO LTD
Regenerated polyester material based on Diels-Alder dynamic covalent network and preparation method thereof
The invention relates to the technical field of high polymer materials, in particular to a regenerated polyester material based on a Diels-Alder dynamic covalent network and a preparation method thereof, and the preparation method comprises the following steps: S1, preparing maleic anhydride grafted regenerated polyethylene glycol terephthalate marked as RPET-MA; the RPET-MA and furfuryl amine are subjected to a reaction, and RPET-F is obtained; s2, the RPET-F and bismaleimide are subjected to a reaction, and the regenerated polyester material is obtained. The method disclosed by the invention has the beneficial effects that a thermally reversible Diels-Alder dynamic covalent network is successfully constructed in regenerated polyester through a two-step method of firstly grafting a furan group and then cross-linking with BMI. The problem of performance degradation caused by thermal mechanical degradation of RPET is solved, and the material has reprocessing and self-repairing capabilities while maintaining mechanical properties.
Owner:SOUTHWEAT UNIV OF SCI & TECH
Labeling and coding all-in-one machine convenient to adjust
ActiveCN224184715Ueasy to separateavoid separabilityLabelling short rigid containersLabelling machinesMotor driveTransmission belt
The utility model relates to the technical field of labeling and coding all-in-one machines, and discloses a labeling and coding all-in-one machine convenient to adjust, which comprises a winding bracket and a transmission belt, the key point is that stable separation of a label layer and a backing paper layer is realized through a cooperative structure of a turning roller and a rough roller; a backing paper layer of a label roll is wound on the turning roller in a U shape, the thick roller is driven by a servo motor, and the outer wall of the thick roller adsorbs the label layer through negative pressure, so that the label layer is separated from the backing paper layer and turns to one side of the transmission belt. Two pressing rollers on the other side of the transmission belt are connected with a double-rod air cylinder through a movable frame, the round bottles can be extruded to the outer wall of a rough roller, and label layers are precisely attached to the peripheries of the round bottles through glue; the label height adjusting platform arranged below the material rolling support comprises a fixing plate, a lifting plate and a rhombic lifting frame, a distance adjusting screw rod is driven by a double-head motor to achieve electric adjustment of the height of the material rolling support, and the label height adjusting platform can be rapidly matched with round bottles of different heights.
Owner:JIANGSU WUZHONG NATURE BIOTECH CO LTD
A type of warm down comforter
ActiveCN224307096Uavoid accumulationIncrease warmthBlanketBed linenStructural engineeringMechanical engineering
Owner:HANGZHOU JOYCE HOUSEHOLD TEXTILES CO LTD
A pyridine-imine type metal complex, its preparation method and application
PendingCN122080087Aavoid separabilityAvoid purification stepsSilicon organic compoundsOrganic-compounds/hydrides/coordination-complexes catalystsCombinatorial chemistryHydrosilylation
This invention relates to a pyridine-imine type metal complex, its preparation method, and its applications. The pyridine-imine type metal complex is an NNN-pyridine-imine type metal complex or an NN-pyridine-imine type metal complex; its structural formula is shown in Formulas 1-4. The pyridine-imine type metal complex and its preparation method described in this invention, as well as its application in hydrosilylation and silanization reactions, allow for the one-pot synthesis of the desired metal complex. The preparation method is simple and low-cost, eliminating the cumbersome separation steps in traditional two-step methods, significantly reducing reaction time, increasing the maximum yield to over 95%, and exhibiting high catalytic activity and selectivity in hydrosilylation and silanization reactions.
Owner:SHIHEZI UNIVERSITY +2
Dynamic static pressure measuring device for high-temperature airflow
ActiveCN224202630UImprove cooling efficiencyHigh structural reliabilityGas-turbine engine testingFluid pressure measurementTurbineScrew thread
The utility model belongs to the technical field of high-temperature pressure testing, and discloses a dynamic static pressure measuring device for high-temperature airflow, which is suitable for dynamic static pressure measurement of turbine inlets, turbine outlets and interstage wall surfaces. Comprising a cylindrical supporting rod, a pressure sensing hole, a dynamic pressure sensor, a pressure measuring channel, a water inlet channel, a water outlet channel, a partition plate, a cavity, a multifunctional positioning block, a fixing thread and a cable. The axis of the pressure sensing hole coincides with the axis of the supporting rod and communicates with the dynamic pressure sensor through the pressure measuring channel. The supporting rod is of a double-layer coaxial structure, the inner layer and the outer layer are divided by a vertically-arranged partition plate to form a water inlet channel and a water drainage channel, the sections of a water inlet and a water outlet are smoothly transited from a cashew nut shape to a round shape, and the flow area is constant. The lower end of the supporting rod is provided with a fixing thread and is matched with a multifunctional positioning block for positioning and fixing with the wall surface of the casing, thereby realizing dynamic static pressure measurement of the wall surface in a 2000K environment.
Owner:BEIHANG UNIV
A scroll compressor nozzle
This invention discloses a vortex nozzle based on the boundary layer effect. It includes an inlet structure, a vortex assembly, and an outlet structure. The vortex assembly consists of at least two coaxial vortexes stacked together, each with a central hole that forms an axial jet channel. The wavy surfaces of adjacent vortexes form a curved channel that converges towards the central hole, with the curved surfaces forming troughs at the edge of the central hole. The axial spacing h is less than the diameter D of the central hole. Water enters the curved channel tangentially from the outer edge, smoothly changes direction due to the boundary layer effect, and forms a vortex at the central hole, resulting in an axial jet that achieves a near 90° turn. When used for rotary drive, at least two circumferentially distributed nozzles spray in opposite directions along the tangent, forming a force couple. This invention features low energy loss, concentrated jet, and strong reaction force.
Owner:许昌禾下梦农业科技有限公司
A weather-resistant one-coat paint and a method for preparing the same
ActiveCN121537838BGood antibacterial effectImprove flame retardant performanceGroup 4/14 element organic compoundsFireproof paintsWeather resistanceOrganic solvent
The present application relates to the technical field of paint, and especially relates to a weather-resistant one-coat paint and a preparation method thereof. The paint comprises component A and component B; the mass ratio of the component A to the component B is (25-30):3; according to weight parts, the component A comprises the following raw materials: 20-30 parts of hydroxyl acrylic acid resin, 10-20 parts of organic solvent, 25-35 parts of pigment, 5-15 parts of flame retardant, 1-5 parts of modified graphene and 1-4 parts of additive; and the component B is a solution of aliphatic polyisocyanate. The paint has excellent bacteriostasis, flame retardation, weather resistance and corrosion resistance.
Owner:HUNAN ZIXIAN NEW MATERIAL CO LTD
Forging cooling device
The utility model relates to a forging cooling device, including cooling box and the net frame of placing, the top of net frame of placing is equipped with the removal part, the removal part is used for driving net frame of placing to move to the vertical axial movement of cooling box, both sides of net frame of placing are equipped with the back shape drying frame, two groups back shape drying frame can move towards net frame of placing or move away, the inboard of back shape drying frame evenly installs several nozzles, the outside of back shape drying frame installs the hot -blast machine, the air outlet end of hot -blast machine is linked together with back shape drying frame through the pipeline, sets up solenoid valve on the pipeline, can be injected airflow to forging from multi -angle through the utility model, cooperate the airflow circulation design of air hole, ensure that forging cooling and drying are even, reduce the deformation or performance difference because of the temperature uneven.
Owner:ANHUI LINHONG HEAVY IND TECH CO LTD
Gel granule sludge-based algal-bacterial symbiotic sequencing batch reactor and application thereof
The invention provides a bacteria-algae symbiotic sequencing batch reactor based on gel granular sludge and application of the bacteria-algae symbiotic sequencing batch reactor, and belongs to the technical field of biological sewage treatment and microbial immobilization. According to the reactor, gel granular sludge is used as a microbial immobilization carrier, nitrification sludge and denitrification sludge are jointly immobilized in a polyvinyl alcohol-sodium alginate composite gel matrix to form a granular structure, and an internal pore structure is regulated and controlled to improve mass transfer performance. Microalgae exist in a sequencing batch reactor system in a suspended state, dissolved oxygen is provided through photosynthesis under the condition of no additional aeration, the dissolved oxygen and nitrification and denitrification processes of microorganisms in the gel granule sludge form a synergistic effect, and efficient and stable biological denitrification treatment of nitrogen-containing wastewater is achieved.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Reinforced connection structure for automobile warning indicator
ActiveCN224232991UImprove connection strengthavoid separabilityCoupling device detailsStructural engineeringInjection moulding
Owner:SHANGHAI FEIXIN PLASTIC MOULD FORMING CO LTD
Degradable rubber composition and preparation process thereof
The invention discloses a degradable rubber composition and a preparation process thereof, and belongs to the technical field of rubber materials. The degradable rubber composition comprises 100 parts of emulsion polymerized styrene-butadiene rubber, 20-50 parts of a chemical crosslinking integrated composite filler, 2-4 parts of a vulcanization system, 6-8 parts of an activator and 1-2 parts of an anti-aging agent. The core-shell structure chemical crosslinking integrated composite filler constructed by directional covalent bonds is designed and adopted, amination modified corn-based charcoal is used as a rigid nuclear phase, mixed raw powder of soybean defatted raw powder and corn bran raw powder is used as a flexible shell phase, and the amination modified corn-based charcoal and the mixed raw powder form a stable integrated structure through an epoxy crosslinking agent. The composition disclosed by the invention can replace petroleum-based carbon black in a high proportion, has excellent mechanical properties, processability and degradability, and solves the industrial pain points of poor compatibility, insufficient reinforcement and water absorption degradation of the existing biomass filler; the preparation process is compatible with the existing rubber industrial production line, green, low in cost and suitable for large-scale popularization.
Owner:XIAMEN ZHONGCHENYUAN TECH CO LTD
Integrated micro permanent magnet direct drive generator
This invention relates to the field of micro-power generation technology, and more particularly to an integrated micro permanent magnet direct-drive generator. The generator includes: a duct housing, a turbine, a permanent magnet power generation unit, a flow field monitoring module, and a control unit. This invention designs the inner wall of the duct as a composite curved surface with a specific helical waveform and axial contraction, precisely matching its key shape parameters with the aerodynamic design point of the turbine. This allows the airflow to be accelerated by the Venturi effect as it passes through the duct, and further endowed with tangential momentum consistent with the turbine's rotation direction by a controllable helical bulge structure. Simultaneously, based on real-time monitoring of the outlet swirl intensity and load closed-loop control, the optimal aerodynamic matching state is dynamically maintained. Furthermore, monitoring of characteristic pressure distribution enables early warning of duct performance degradation, effectively solving the problem of reduced power generation efficiency caused by mutual interference of airflows due to the use of multiple parallel independent flow guiding mechanisms.
Owner:BEIDOU ROAD AIRLINES (BEIJING) TECHNOLOGY CO LTD
A method for detecting line corridor anomalies in frigid regions based on cross-scale gradient field sensing operators
PendingCN122135214AImprove the accuracy of abnormal movement recognitionimprove accuracyCharacter and pattern recognitionAnomaly detectionComputer vision
This invention relates to a method for detecting line corridor anomalies in frigid regions based on a cross-scale gradient field sensing operator, and pertains to the field of line corridor anomaly detection technology. The invention aims to address the problem of low accuracy in existing line corridor anomaly detection methods. The invention includes: acquiring a multi-band remote sensing image to be tested; invoking a gradient field convergence characteristic operator and an anomaly sensing model to obtain an anomaly sensing map of the multi-band remote sensing image; the anomaly sensing model is obtained through the following method: inputting a sample table; invoking the gradient field convergence characteristic operator to obtain the gradient field convergence characteristic vector of the sample; and training a support vector machine classification model using the gradient field convergence characteristic vector and the sample state to obtain the anomaly sensing model. This invention is used to detect whether anomalies have occurred in a line corridor.
Owner:CHANGCHUN INST OF TECH
Camera decoration assembly, processing method thereof and electronic equipment
The invention relates to a camera decoration assembly, a processing method thereof and electronic equipment, and the processing method of the camera decoration assembly comprises the steps that a decoration component is provided, the decoration component comprises a ceramic decoration part and a plastic decoration part which are combined, and the ceramic decoration part comprises a first surface and a second surface which are opposite to each other; the plastic decorative part is connected with the first surface; the decoration component is subjected to pre-vacuumizing treatment; and forming an effect appearance layer on the second surface of the ceramic decoration part to obtain the camera decoration assembly. In the process of forming the effect appearance layer on the second surface of the ceramic decoration part, miscellaneous gas or impurities released from the plastic decoration part are prevented from being attached to the first surface, so that the binding force between the effect appearance layer and the ceramic decoration part is effectively improved, and the effect appearance layer is prevented from being separated from or falling off from the ceramic decoration part; the yield of the camera decoration assembly is improved, and the reliability of the electronic equipment is improved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD
Centrifugal fan and electronic device
PendingCN122083006Aincrease air volumeeasy accessPump componentsRadial flow pumpsFan bladeElectric devices
This application provides a centrifugal fan and electronic device, relating to the field of fan technology. The centrifugal fan provided by this application includes: a volute housing, including an air inlet surface along its own axial direction; fan blades disposed within the volute housing; a first air outlet located on a first sidewall in the radial direction of the volute housing; and an air inlet located on the air inlet surface and directly opposite the fan blades. The edge of the air inlet is constructed as an annular inclined surface formed by splicing multiple arc-shaped inclined surfaces. At least two of the multiple arc-shaped inclined surfaces have different inclination angles. The multiple arc-shaped inclined surfaces include a first arc-shaped inclined surface, which corresponds to the first air outlet along the radial direction of the fan blades. The inclination angle of the first arc-shaped inclined surface is greater than or equal to 120° and less than or equal to 130°, and the inclination angle is the angle between the arc-shaped inclined surface and the air inlet surface. This application provides a centrifugal fan and electronic device that can improve air intake efficiency and reduce noise.
Owner:XIAN YIPU COMM TECH
Preparation method and application of magnesium-based bone implant surface pH-responsive bioactive composite coating
PendingCN122665192Aavoid separabilityAvoid solid migration
This invention discloses a method for preparing and applying a pH-responsive bioactive composite coating on the surface of magnesium-based bone implants. The method includes: micro-arc oxidation treatment of a magnesium alloy substrate to form a porous ceramic layer; followed by alkaline hydroxylation treatment; encapsulating etidronate disodium in alkali lignin nanoparticles through acid precipitation self-assembly; uniformly dispersing the drug-loaded nanoparticles in a 3-aminopropyltrimethoxysilane hydrolysate, coating them onto the hydroxylated substrate surface, and curing to obtain the composite coating. This coating utilizes the local pH increase generated by the degradation of magnesium alloy in the physiological environment as an endogenous trigger signal to cause the alkali lignin nanoparticle structure to dissociate and release etidronate disodium, achieving active protection in response to the corrosive microenvironment. At the same time, etidronate disodium has both corrosion inhibition and osteopromoting functions. This invention achieves adaptive regulation of the degradation behavior of magnesium-based bone implants, combining corrosion resistance, pH-responsive drug release, and bioactivity.
Owner:XUCHANG VOCATIONAL & TECHNICAL COLLEGE
A method for manufacturing high far-infrared emission therapy glasses
This invention relates to the field of polymer materials technology and discloses a method for manufacturing high far-infrared emission therapeutic glasses. The method includes: performing double-layer surface modification on far-infrared negative ion functional powder to obtain modified functional powder compatible with a polymer matrix; pre-dispersing and melt-blending the modified functional powder with a polymer matrix material in steps to obtain a blend; forming a functional powder enrichment region on the surface of the glasses by injection molding and applying a segmented electric field; polarizing the region based on the thickness of the enrichment region using a formula to determine the polarization electric field strength; and simultaneously performing radiation crosslinking treatment to anchor the crosslinked network to an oriented structure. This invention solves the technical problems of uneven functional powder dispersion and poor electret stability, achieving a synergistic effect of surface functional enrichment and long-lasting electret effect. The prepared glasses have durable and stable far-infrared emission and negative ion therapeutic functions.
Owner:GUANGZHOU BASTO GLASSES CO LTD