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38results about How to "Suitable for large-scale applications" patented technology

Photovoltaic power generation intelligent insulation detection system

PendingCN121966451ASuitable for large-scale applicationsRealize digital managementPhotovoltaic monitoringResistance/reactance/impedenceControl engineeringReliability engineering
The invention is mainly used in the technical field of photovoltaic power generation. The invention discloses a photovoltaic power generation intelligent insulation detection system which comprises a host and a plurality of subsystems. Each subsystem comprises an extension set, a photovoltaic direct current assembly composed of a plurality of photovoltaic strings, and a detection device; the extension set is respectively connected with each photovoltaic string in the photovoltaic direct current assembly and is used for controlling each photovoltaic string to be in an on state or an off state and sending a detection instruction aiming at a target photovoltaic string to the detection device; the detection device is used for performing insulation resistance detection on the target photovoltaic string when receiving the detection instruction and feeding back a detection result to the corresponding extension set; and the host is in communication connection with each extension set and is used for acquiring the insulation detection results and the operation data of all the photovoltaic group strings in each subsystem and carrying out data analysis. According to the invention, the safety and reliability, the operation and maintenance efficiency and the digital management level of a large-scale photovoltaic system can be improved.
Owner:MERCER (GUANGDONG) NEW ENERGY TECH CO LTD

Method for treating antibiotic wastewater by using graphite diacetylene / iron sulfide indium nanocomposite activated persulfate

The application discloses a method for treating antibiotic wastewater by using a graphdiyne / ferrous indium sulfide nanocomposite to activate persulfate, and the method is characterized by using the graphdiyne / ferrous indium sulfide nanocomposite as a catalyst to activate persulfate for degrading and treating antibiotic wastewater, wherein the graphdiyne / ferrous indium sulfide nanocomposite comprises ferrous indium sulfide nanoparticles, and the nanoparticles are loaded with graphdiyne nanosheets. The method for treating antibiotic wastewater by using the graphdiyne / ferrous indium sulfide nanocomposite to activate persulfate uses the graphdiyne / ferrous indium sulfide nanocomposite as a catalyst, wherein the nanocomposite has many reactive sites, high catalytic activity and good stability, can efficiently activate persulfate with a smaller amount of catalyst, can efficiently remove antibiotics in wastewater, and has the advantages of low cost, high treatment efficiency, good removal effect, green environmental protection and the like, and therefore, the method has important significance for effectively purifying antibiotic wastewater, has high use value and good application prospect.
Owner:ZHEJIANG NORMAL UNIV

Efficient dehydration method for energetic aqueous waste HTPB propellant

This invention provides a highly efficient dehydration method for energetic and water-containing waste HTPB propellant, comprising: Step 1, barrier coupling sheet preparation: Under low temperature conditions of 5-10℃, the energetic and water-containing waste HTPB propellant is placed inside a barrier, protected by an inert gas, and pressed into propellant sheets with a thickness ≤1mm using a two-roller press; Step 2, fiber-like capillary adsorption: The propellant sheets obtained in Step 1 are spread flat on the surface of a multi-level porous fiber-like capillary matrix, and allowed to adsorb statically. Through capillary effect, free water on the surface of the propellant sheets is driven to migrate along the porous channels of the matrix and be captured, removing the surface free water; The fiber-like capillary matrix is ​​composed of a cellulose skeleton phase, a silica aerogel porous control phase, a hydroxylated nanocellulose interface functional phase, and a polyurethane substrate supporting and stabilizing phase; Step 3, negative pressure physical dehydration; Step 4, chemical selective dehydration; Step 5, safe recycling. This invention has high dehydration efficiency, retains thermal stability, is safe and controllable, and has low cost.
Owner:RONGTONG RESOURCES ANHUI CO LTD +1

Copper-indium-silver catalyst, preparation method thereof and method for preparing synthesis gas with adjustable ratio of carbon monoxide to hydrogen through electrocatalysis of carbon dioxide

The invention relates to a copper-indium-silver catalyst, a preparation method thereof and a method for preparing synthesis gas with an adjustable ratio of carbon monoxide to hydrogen through electrocatalysis of carbon dioxide. The preparation method comprises the following steps: dispersing a multi-walled carbon nanotube in water to obtain a dispersion liquid A; dispersing copper nitrate trihydrate, indium nitrate hydrate and silver nitrate in water to obtain dispersion liquid B; mixing the dispersion liquid A and the dispersion liquid B to obtain dispersion liquid C; adding alkali into the dispersion liquid C to obtain a mixed solution D; and filtering and drying the mixed solution to obtain the copper-indium-silver electrocatalyst. The invention also provides the copper-indium-silver catalyst prepared by the method and a method for preparing synthesis gas with an adjustable ratio of carbon monoxide to hydrogen by electrocatalysis of carbon dioxide. According to the copper-indium-silver electrocatalyst provided by the invention, an electron-rich Cu site is formed by utilizing the synergistic effect of three metals, CO2 adsorption and CO desorption are promoted, and HER is inhibited, so that CO2RR and HER are balanced, and the selectivity of carbon monoxide synthesis gas is effectively improved.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Water supply plant sedimentation tank floc recycling system and method and composite carrier material

The invention discloses a water supply plant sedimentation tank floc recycling system and method and a composite carrier material, and belongs to the technical field of water supply plant water treatment. The system comprises a monitoring regulation and control module which is used for collecting floc state data of a sedimentation tank in real time and outputting a control signal according to the floc state data; the composite carrier material supply module is used for adding a composite carrier material into the floc activation reactor according to the control signal; the floc backflow mechanism is used for adjusting recycled floc entering the floc activation reactor according to the control signal; and the floc activation reactor is used for receiving the composite carrier material and the recycled floc and carrying out three-stage activation treatment under the action of an internal flow field to obtain regenerated floc. Solid waste recycling is achieved through floc recycling, and the sludge discharge amount is reduced; and the monitoring regulation and control module combines fuzzy PID with an LSTM model, accurately matches processing requirements, and improves operation stability. According to the invention, the technical problem of floc recycling and reusing is solved.
Owner:ZHENGZHOU KAIRUN MUNICIPAL ENG DESIGN CO LTD

Fluorescent particle induced transmittance radiation cooling film, preparation method and application thereof

PendingCN122145849AExcellent radiation cooling effectSimple preparation processMaterials sciencePhotochemistry
The application discloses a fluorescent particle induced ultra-transmittance radiation refrigeration film and a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing DCPDA monomers, graphene quantum dot dispersion liquid and an ultraviolet curing agent to obtain a mixed solution; concentrating the mixed solution to obtain a casting solution; coating the casting solution on the surface of a substrate to obtain a wet film; and curing the wet film to obtain the fluorescent particle induced ultra-transmittance radiation refrigeration film. By introducing the fluorescent particles into a polymer matrix and adding the ultraviolet curing agent, the fluorescent particle induced ultra-transmittance radiation refrigeration film is formed, the high transmittance of sunlight and the high infrared emissivity are realized, the radiation refrigeration performance of the fluorescent particle induced ultra-transmittance radiation refrigeration film is excellent, and the fluorescent particle induced ultra-transmittance radiation refrigeration film is suitable for building energy saving, photovoltaic cell cooling and cold chain transportation and the like. The preparation process is simple and suitable for large-scale application.
Owner:CHINA THREE GORGES UNIV

A method and apparatus for landslide crack identification based on neighborhood-wide perception hierarchical convolution.

This invention discloses a method and apparatus for identifying landslide cracks based on neighborhood-wide perceptual hierarchical convolution. First, the invention calculates the deep spatial features of each point based on the 3D data of the landslide point cloud. Then, these features and the point cloud data are used as input to the network. Next, the network is used to find the descriptive points with the best detailed structural representation within the neighborhood of the landslide crack and divides them into sub-neighborhoods. Then, by using the sub-neighborhoods corresponding to the determined descriptive points and combining them with the spatial features of the point cloud data in each sub-neighborhood, the fine local features of the landslide cracks are extracted. Finally, based on the extracted fine local features, the landslide cracks can be identified. Therefore, this invention, through spatial features and sub-neighborhood division, extracts local features, focusing on the overall structural morphology of the landslide cracks. This reduces misjudgments and omissions caused by complex terrain variations, thereby improving the accuracy of landslide crack identification.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Correction prompt-based goods accompanying bill photographing and warehousing method and device, and storage medium

ActiveCN121998978Aavoid wastingRealize shooting correction guidance functionImage enhancementImage analysisComputer graphics (images)Imaging quality
The invention discloses a goods accompanying sheet photographing and warehousing method and device based on correction prompt, and a storage medium, and the method achieves the quality evaluation of a target goods accompanying sheet image through an image quality evaluation model, and outputs image photographing correction guide prompt information when the quality does not meet a preset condition, so as to prompt a user to carry out the correction photographing. Therefore, a shooting correction guiding function is realized; meanwhile, after the image quality of the obtained target accompanying sheet image meets the preset condition, a difference image used for representing the difference part between the target accompanying sheet image and the reference accompanying sheet image is extracted, only the difference image is uploaded, and finally, the target accompanying sheet image and the reference accompanying sheet image are obtained. And the difference image and the reference accompanying sheet image are used to restore and obtain a target accompanying sheet image at the cloud end, and warehousing of the accompanying sheet can be completed. Therefore, only the difference part between the current image and the reference image is transmitted, compared with the traditional technology, the real-time performance is improved, the invalid background is reduced, and the problem of resource waste is avoided.
Owner:CHENGDU ZIJIELIU TECH CO LTD

Method for purifying and dewatering sea silicon sand by high-speed centrifugal water injection

This invention discloses a high-speed centrifugal water injection purification and dewatering method for marine silica sand. This invention relates to the field of silica sand purification technology and includes the following steps: activating the silica sand; sieving the activated silica sand to remove impurities; mechanically grinding the sieved silica sand; treating the ground silica sand with centrifugal water injection, using centrifugal force combined with water injection to remove chloride ions and harmful substances from the silica sand; and dewatering the treated silica sand to obtain finished silica sand. By combining activation treatment, mechanical grinding, and centrifugal water injection purification, chloride ions and impurities such as shells and mud can be effectively removed from the silica sand. This process adopts a step-by-step treatment method: first, activation loosens the colloids on the surface of the silica sand; then, mechanical grinding breaks down the colloidal layer structure; and finally, centrifugal force combined with water injection separates the soluble salts from the silica sand, achieving deep purification of the silica sand.
Owner:XIAMEN YUANLIDA FOOD IMP & EXP CO LTD

An intelligent pillow system with multi-zone airbag adjustment

The present invention discloses an intelligent pillow system with multi-zone airbag adjustment. The present invention precisely senses the head position and sleeping posture through a high-density fiber pressure sensor array, and based on this information, drives an innovative "single air pump + multiple electronic control valves" and "integral airbag + partitioned air conduction" structure, achieving remarkable beneficial effects: First, by immediately triggering the overall descent protection when the head is tilted up / down, it can actively prevent hyperextension and hyperflexion of the cervical vertebra, effectively reducing the risk of neck pain and discomfort. Second, the sensor without protrusions embedded and the PWM smooth adjustment of the airbag ensure a comfortable experience; the system adopts a single power unit and logical partition design, greatly simplifying the air circuit, significantly reducing the hardware cost, power consumption, and the failure rate of easy leakage in multi-chambers, and improving the reliability. In addition, the interaction mode combining user-set instructions and automatic recognition takes into account both convenience and personalization, and the self-learning module enables the pillow to continuously adapt to the user's habits, achieving long-term precise personalized support.
Owner:王镜馨

Ternary positive electrode material and preparation method and application thereof

The invention provides a ternary positive electrode material and a preparation method and application thereof, the ternary positive electrode material comprises a mixture of LiNi < x > Co < y > Mn < z > O < 2 > particles coated with LiF, LiF particles and MgO particles, x is greater than 0, y is greater than 0, z is greater than 0, and x + y + z = 1. According to the ternary positive electrode material provided by the invention, direct contact between the positive electrode material and an electrolyte can be reduced through LiF coating, side reaction is reduced, LiF particles and MgO particles can gradually release F <-> and Mg < 2 + > in the working process of a battery, and in-situ doping of a material bulk phase is realized to stabilize the structure, so that the cycling stability of the battery is effectively improved; in addition, the preparation method provided by the invention is simple and suitable for large-scale application.
Owner:SUZHOU DURAPOWER TECH

A method for constructing individualized multiple myeloma organoids based on stiffness gradient regulation and application

PendingCN122081228AStrong bortezomib resistancePredict individualized treatment responseMicrobiological testing/measurementArtificial cell constructsHydrogel scaffoldBlood plasma
This invention discloses a method and application for constructing personalized organoids for multiple myeloma based on stiffness gradient regulation, belonging to the field of biomedical technology. The method includes the following steps: S1: mixing patient bone marrow plasma with a calcium-containing crosslinking agent to form a gelatable precursor; S2: combining the gelatable precursor with a three-dimensional gelatin scaffold having a stiffness gradient (Young's modulus of 25-50 kPa) to construct a three-dimensional microenvironment simulating the stiffness gradient of bone marrow; S3: gelling the precursor to form a hydrogel-scaffold composite system encapsulating target cells; S4: seeding vascular endothelial cells onto the surface of the composite system to simulate a vascular niche structure. The organoid model for multiple myeloma constructed by this invention, based on the patient's autologous bone marrow plasma and possessing stiffness gradient characteristics, can effectively simulate the bone marrow mechanical microenvironment and preserve key components of the tumor microenvironment, supporting the long-term growth of primary tumor cells and improving the accuracy of drug sensitivity prediction.
Owner:SICHUAN ACADEMY OF MEDICAL SCI SICHUAN PROVINCIAL PEOPLES HOSPITAL

Energy self-sufficiency system in process of capturing carbon dioxide from tail gas of gas turbine

The utility model relates to an energy self-sufficiency system in a process of capturing carbon dioxide from tail gas of a gas turbine. The system comprises a high-grade energy recovery heating medium-tail gas heat exchanger, a middle-grade energy recovery amine liquid-tail gas heat exchanger and a low-grade energy recovery lean and rich amine liquid heat exchanger. By the adoption of the three-stage energy recovery system, energy in tail gas of the gas turbine can be recovered in a stepped mode, and self-sufficiency of carbon dioxide capture energy in the tail gas is achieved. The application of the technology not only greatly reduces the energy consumption in the carbon dioxide trapping process, but also has important significance for promoting sustainable utilization of energy and reducing industrial carbon emission. Through the efficient energy recovery technology, carbon dioxide capture can be completed without depending on external energy supply, development and application of the environmental protection technology are further promoted, and the method is suitable for large-scale marketization application.
Owner:BEIJING ENCRYO ENG

CdSe / ZnS quantum dot based on multiple binding sites and stable ligand, preparation method of CdSe / ZnS quantum dot and carrier-injection-free LED device

The invention provides a stable-ligand CdSe / ZnS quantum dot based on multiple binding sites, a preparation method of the stable-ligand CdSe / ZnS quantum dot and a carrier-injection-free LED device. According to the scheme, the alanine modified long-chain alkylamine ligand is used, alanine endows the ligand with more sites which are mutually combined with the surfaces of the quantum dots, on one hand, more binding sites can passivate surface defects of the CdSe / ZnS quantum dots and improve the luminous efficiency, and on the other hand, the stability of the quantum dots can be improved; the prepared modified quantum dots can be applied to injection-free electroluminescent devices driven by a high-frequency alternating-current electric field.
Owner:TIANJIN UNIV

A high-strength weldable 6xxx series aluminum alloy profile, its manufacturing method and application

This invention relates to the field of hot extrusion manufacturing technology, specifically to a high-strength weldable 6xxx series aluminum alloy profile, its manufacturing method, and its application. The aluminum alloy profile is composed of the following weight percentages: Si: 0.80%~1.2%, Fe≤0.20%, Cu: 0.40%~0.80%, Mn: 0.30%~0.70%, Mg: 0.70%~1.1%, Cr≤0.25%, Zn≤0.10%, Ti≤0.10%, Zr: 0.05%-0.20%, Pb<0.01%, with the balance being Al and unavoidable impurities. The profile meets the following performance requirements: tensile properties, R... m ≥420MPa, R p0.2 ≥330MPa, A 50mm ≥8.0%; Fatigue performance: at r=0.1, N=1×10 7 Under the same conditions, the fatigue strength σ of the smooth sample is ≥145MPa, realizing the lightweight manufacturing of high-speed trains.
Owner:SHANDONG YANCON LIGHT ALLOY CO LTD

Screening method and application of Asian human NMOSD high-pathogenicity antibody

PendingCN121949541AIdentifying correlates of treatment resistanceSuitable for large-scale applicationsSerum immunoglobulinsImmunoglobulins against animals/humansAutoimmune conditionGlucocorticoid
The invention discloses a screening method and application of an Asian human NMOSD high-pathogenicity antibody, and belongs to the technical field of autoimmune disease diagnosis and treatment. The screening method comprises the following steps: screening an Asian human NMOSD patient with poor glucocorticoid treatment prognosis, extracting serum AQP4-IgG, carrying out specific capture through M23 type AQP4 transfection cells, combining with primary astrocyte C3 inducibility verification, and screening to obtain the high-pathogenicity antibody. The antibody can mediate construction of a glucocorticoid treatment resistant NMOSD animal model, and is applied to disease pathogenic mechanism research and targeted drug screening. The antibody is screened on the basis of clinical prognosis phenotype and functional characteristics, sequence identification is not needed, the technical blank of Asian human NMOSD high-pathogenicity antibody screening is filled, and the application value is remarkable.
Owner:THE 980TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

A low-thermal-conductivity, high-temperature-resistant, structurally ordered nanolayered calcium niobate thermal barrier coating and a preparation method thereof

The application provides a low-thermal-conductivity, high-temperature-resistant, structure-ordered nanometer-layered calcium niobate heat-insulating coating, which has the advantages of low thermal conductivity and good thermal stability, and is suitable for being applied to a substrate with a heat-resistant temperature higher than 500 DEG C. Meanwhile, the application also provides a preparation method of the heat-insulating coating, which has the advantages of simple process, easy operation and high efficiency, and is suitable for large-scale application.
Owner:ZHENGZHOU UNIV

A lithium iron phosphate cleaning wastewater recycling treatment system and recycling treatment method

The application provides a lithium iron phosphate cleaning wastewater recycling treatment system, characterized by comprising: a reaction tank, which is used for receiving lithium iron phosphate cleaning wastewater and performing a pretreatment reaction to obtain a pretreatment mixed solution; a dewatering device, which is used for receiving the pretreatment mixed solution and performing mud-water separation to obtain a pretreatment intermediate solution; a precision filter, which is used for receiving the pretreatment intermediate solution and performing precision filtration to obtain a pretreatment solution; an ultrafiltration device, which is used for receiving the pretreatment solution and performing ultrafiltration to obtain a reverse osmosis treatment solution; a first reverse osmosis device, which is used for receiving the reverse osmosis treatment solution and performing desalination treatment to obtain a first reverse osmosis clear solution; and a second reverse osmosis device, which is used for receiving the first reverse osmosis clear solution and performing desalination treatment to obtain recycled water, wherein the system has a high wastewater recycling ratio, low energy consumption and is suitable for large-scale industrial application. The application also provides a lithium iron phosphate cleaning wastewater recycling treatment method.
Owner:HUBEI RT ADVANCED MATERIALS CO LTD

A chryseobacterium strain and its application in improving stability of mushroom residue substrate

ActiveCN122128187AImprove physical structural stabilitylight weightBiocideAgriculture tools and machinesMicroorganismEngineering
This invention belongs to the field of agricultural microbial technology, and discloses a strain of *Chlorella vulgaris* and its application in improving the stability of mushroom residue substrate. The *Chlorella vulgaris* strain is *Chlorella vulgaris* (…). Chryseobacterium The strain JYT19 (sp.) was deposited on February 2, 2026, with accession number CGMCC No. 37640. It is a new strain isolated from coconut coir material. Inoculating this strain into mushroom substrate significantly improves the physical structural stability of the substrate, delays collapse and compaction, and extends its service life. Simultaneously, it has beneficial effects on plant growth and quality improvement. This invention provides an environmentally friendly and efficient microbial technology solution to address the problems of rapid degradation and poor stability of mushroom substrate, and has significant application value in the fields of soilless cultivation in facility agriculture and resource utilization of organic waste.
Owner:NANJING AGRICULTURAL UNIVERSITY

A label separating structure applied to a labeling machine

The utility model relates to label separation technical field provides a label separation structure for being applied to labeler, including base, the base top fixedly connected label installation part, the label installation part is equipped with the conduction component with base middle part position, the conduction component adjacent place is equipped with the push -plate, and the base below is equipped with the label separation structure, including passageway, the passageway left and right sides are equipped with the protrusion, and the protrusion left and right sides form separation passageway, one end of passageway is equipped with the separation plate, and the conduction component includes a plurality of conduction wheels, through specific structure design, realize the efficient separation to soft label. The utility model simple structure, low in cost is applicable to the separation of soft label, has the remarkable practical value.
Owner:SHAANXI CAIHANG PACKAGING & DECORATION CO LTD

A Machine Vision-Based Method and System for Detecting Temperature Changes in Two-Wheeled Electric Vehicle Batteries

This invention discloses a method and system for detecting battery temperature changes in two-wheeled electric vehicles based on machine vision. The invention performs image enhancement processing by dividing the battery's infrared image into a base image layer and a detail image layer. First, salient and insignificant features in the base image layer are used to highlight the target and suppress the background, thereby enhancing the contrast of the base image layer. For the detail image layer, detail enhancement is directly performed to obtain the enhanced base image layer. Then, the two are fused to obtain the enhanced infrared image, and image recognition is performed to obtain the current battery temperature detection result. Finally, the current temperature is compared with historical temperatures to obtain the battery temperature change result. Therefore, this invention effectively optimizes the detailed areas of the image while improving image contrast, thereby improving the infrared image enhancement effect and the accuracy of battery temperature recognition.
Owner:BEIJING TEDA ZHIYUAN ENG TECH CO LTD

Water-phase CdSe-ZnS quantum dot suitable for carrier-injection-free light-emitting diode, preparation method of water-phase CdSe-ZnS quantum dot and carrier-injection-free light-emitting diode

PendingCN121991683AImproving injection electroluminescence performanceSpread evenlyMaterial nanotechnologyNanoopticsQuantum dotLight-emitting diode
The embodiment of the invention discloses a water-phase CdSe-ZnS quantum dot suitable for a carrier-injection-free light-emitting diode, a preparation method of the water-phase CdSe-ZnS quantum dot and the carrier-injection-free light-emitting diode. According to the method, a water-soluble glutathione ligand is introduced as a surface modifier, a water-oil two-phase mixed binary system is constructed on the basis of the oil-soluble CdSe-ZnS quantum dots, amino and sulfydryl of the glutathione ligand have a good coordination effect, so that the oil-soluble CdSe-ZnS quantum dots can be converted into water-soluble CdSe-ZnS quantum dots, and the water-soluble CdSe-ZnS quantum dots can be used for preparing the CdSe-ZnS quantum dots. Due to the affinity of the water-phase quantum dot light-emitting layer and the insulating layer, the performance of the carrier-free injection type light-emitting diode device is expected to be further improved.
Owner:TIANJIN UNIV

Retractable dividing strip

ActiveCN224187058UThere will be no shrinkage offset, etc.stable supportRoof covering using sealantsElastic componentProtection layer
The utility model discloses a retractable dividing strip, relates to the technical field of roof concrete protective layer dividing strips, and solves the problems that the existing roof dividing strip is not firmly fixed, a stress counteracting structure is easy to damage to cause leakage or failure, and the bearing capacity of a vertical supporting structure is limited. The utility model provides a retractable dividing strip which comprises an upper strip body, a vertical supporting structure, an elastic component and a lower strip body. The vertical supporting structure comprises two vertical strip bodies, the two vertical strip bodies are arranged in parallel, and the vertical strip bodies are fixedly connected between the upper strip body and the lower strip body and are of a symmetrical structure; and the elastic part is filled between the two vertical bar bodies. The upper strip body, the vertical strip body and the lower strip body are all made of aluminum alloy materials, and the elastic component is made of PE foam cotton. The telescopic structure designed by the utility model can counteract stress and enhance the supporting force and the fixing effect of the dividing strip, and the structural design is attractive and practical.
Owner:中庆建设有限责任公司

Preparation method of anthraquinone hydrogenation fluidized bed catalyst doped with black phosphorus

The invention discloses a preparation method of an anthraquinone hydrogenation fluidized bed catalyst doped with black phosphorus, relates to the field of catalysts and carriers, and mainly solves the problem of loss of active components of an existing hydrogenation catalyst. The preparation method comprises the following specific steps: step 1, dissolving pseudo-boehmite or boehmite with an acid solution, stirring to prepare glue, mixing the prepared glue with acid, activated aluminum oxide powder and water, stirring, and adding a proper amount of auxiliary materials and dispersing agents to obtain a mixture; 2, granulating the mixture prepared in the step 1 by using a spray centrifugal dryer to obtain a carrier precursor, and roasting to obtain a fluidized bed catalyst carrier; and 3, modifying the fluidized bed catalyst carrier obtained in the step 2 by using black phosphorus, then loading an active component, and finally drying and roasting to obtain the anthraquinone hydrogenation fluidized bed catalyst. The anthraquinone hydrogenation fluidized bed catalyst prepared by the preparation method retains the advantage of high hydrogen efficiency of a fluidized bed catalyst, more importantly, active components are not easy to lose after the catalyst is used, the service life is prolonged, and the anthraquinone hydrogenation fluidized bed catalyst is beneficial to recycling. In addition, the preparation method is simple and suitable for large-scale production.
Owner:HUBEI XINGFA CHEM GRP CO LTD

PMMA glue with viscosity regulated and controlled by glacial acetic acid and preparation method of PMMA glue

The invention belongs to the field of adhesives, and provides PMMA (polymethyl methacrylate) glue with viscosity regulated and controlled by glacial acetic acid and a preparation method of the PMMA glue. According to the invention, a dual design of synergistic viscosity reduction of a PMMA matrix and free glacial acetic acid and slow release regulation and control of the PMMA-coated glacial acetic acid microcapsule is adopted, accurate regulation and control of the viscosity in a range of 500-50000 mPa.s are realized by controlling the dosage of glacial acetic acid in a range of 2-15 parts by mass, and meanwhile, the microcapsule component gradually releases glacial acetic acid in a glue drying process, so that the viscosity of the microcapsule is reduced, and the viscosity of the microcapsule is reduced. The viscosity rise caused by solvent volatilization is compensated, low viscosity, easy construction and high cohesion strength after drying are guaranteed, the problems that the construction performance and curing strength of traditional PMMA glue are difficult to balance, a high-solid-content system is difficult to defoam, and the storage viscosity stability is poor are solved, and the PMMA glue has wide industrial application value.
Owner:DONGGUANYUEFENG DISPLAY PROD CO LTD

Intelligent vital sign monitoring method, system and device based on transfer learning mechanism and UWB radar

The invention discloses an intelligent vital sign monitoring method, system and device based on a transfer learning mechanism and a UWB radar, and relates to the technical field of radar signal processing and medical health monitoring. Learning the basic characteristics of the vital sign signals; and then a small amount of collected real UWB radar data is utilized to carry out fine tuning on the pre-training model, so that knowledge of the pre-training model is migrated and adapted to a current specific scene and a current individual, and the effect of training a large amount of data is achieved by using a small amount of real data. According to the non-contact vital sign monitoring system and method, the defects of real data are complemented by utilizing simulation data, the model is enabled to quickly adapt to a new monitoring environment and a target individual through a transfer learning mechanism, and finally non-contact vital sign monitoring with high precision, high stability and high practicability is achieved.
Owner:SOUTHWEST UNIV

Radio frequency identification miniaturized narrow-beam antenna based on edge inductive loading

PendingCN121863048AReduce operating frequencyBreaking through physical size limitationsAntenna supports/mountingsRadiating elements structural formsDielectric plateDielectric substrate
The invention relates to the technical field of antennas, in particular to a marginal inductive loading-based radio frequency identification miniaturized narrow-beam antenna, which comprises a top dielectric substrate and a bottom dielectric substrate, the lower surface of the bottom dielectric plate is provided with a reflection copper-clad grounding plate, and the upper surface is provided with a feed network. The upper surface of the top layer dielectric substrate is provided with a rhombus metal patch with two feeding points, and four corners of the rhombus metal patch are respectively located at the midpoint positions of four edges of the top layer dielectric substrate; the four corners of the top layer dielectric substrate are respectively provided with a triangular parasitic patch, and each triangular parasitic patch is connected with the reflection copper-clad grounding plate on the lower surface of the bottom layer dielectric substrate through a short circuit screw. The top layer dielectric substrate and the bottom layer dielectric substrate are kept at an interval of a specific height through the short circuit screws, so that an air layer is formed; and two feed points of the rhombic metal patch are respectively connected with a feed network on the upper surface of the bottom dielectric substrate through a metal probe which vertically penetrates through the air layer.
Owner:GUANGDONG UNIV OF TECH +1

A device for monitoring the deposition rate of microplastics in mangrove areas

This invention discloses a device for monitoring the microplastic deposition rate in mangrove areas. The device includes an open-topped outer cylinder, a collection chamber, and a funnel. The collection chamber is open at the top and located inside the outer cylinder. The edge of the funnel's funnel portion is joined to the inner wall of the outer cylinder, and the funnel's outlet is located above the collection chamber. The edge of the funnel's funnel portion is lower than the upper edge of the outer cylinder. This device can monitor the microplastic deposition rate over long periods in mangrove environments with different habitats, and has the advantages of simple structure and convenient operation. Simultaneously monitoring the microplastic deposition rate, the device can indirectly calculate the resuspension rate of microplastic particles by adding a funnel.
Owner:GUANGDONG OCEAN UNIVERSITY