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242results about How to "Promote generation" patented technology

Image generation method and device, electronic equipment and storage medium

The invention discloses an image generation method and device, electronic equipment and a storage medium, and belongs to the technical field of electronic equipment.The method comprises the steps that a motion vector field is calculated based on a video sequence; wherein the motion vector field comprises pixel-level motion information of each image frame in the video sequence; generating a dynamic region mask based on the amplitude information of the motion vector field; wherein the dynamic region mask is used for identifying dynamic pixels and static pixels in the video sequence; determining a static background and at least one dynamic element from the video sequence based on the dynamic region mask; and performing synthesis processing on the dynamic element and the static background to generate a dynamic low-light image.
Owner:VIVO MOBILE COMM CO LTD

Carbon-confined nickel-based schottky heterojunction nanoporous composite antifouling agent and preparation method thereof

PendingCN122648767AImprove light-to-heat conversion efficiencyHigh photodynamic capabilityMarine equipmentAnti bacteria
The application discloses a kind of carbon confinement nickel-based schottky heterojunction nanoporous composite antifouling agent and preparation method thereof.The antifouling agent material mainly includes nickel-based schottky heterojunction, metal oxide and nitrogen-doped carbon confinement structure, by reasonably controlling metal component, oxide type, carbon shell thickness and porous structure, excellent photothermal, photodynamic and antibacterial properties are obtained.The material is synthesized by "precipitation-annealing coordination" method, which can effectively improve the stability of the antifouling agent in the tropical South China Sea marine environment, prolong the antifouling period, and show significant antibiofouling ability under seawater corrosion, high temperature, high salt and high ultraviolet conditions.The application has lower cost, good environmental friendliness, and can be widely used in marine facilities, ships and other marine equipment antifouling coating.
Owner:HAINAN UNIV

A benzothiadiazole modified single-atom zirconium-doped copper electrode material, a preparation method therefor, and an application thereof

ActiveCN120505663BHighly selective electroreductionEffectively regulate electronic structureElectrolytic organic productionElectrodesPtru catalystCopper electrode
The application relates to the development and technical field of electrocatalysts, and discloses a benzothiadiazole modified single-atom zirconium-doped metal copper electrode material and a preparation method and application thereof. The preparation method comprises the following steps: dissolving inorganic copper salt and inorganic zirconium salt, adding the inorganic copper salt and the inorganic zirconium salt into an alkaline solution, and performing hydrothermal reaction to obtain a single-atom zirconium-doped copper oxide precursor; dissolving benzothiadiazole, adding the benzothiadiazole into a dispersion solution of the single-atom zirconium-doped copper oxide precursor to obtain a mixed solution; spraying the mixed solution on a polytetrafluoroethylene film substrate loaded with copper nanoparticles to obtain a benzothiadiazole modified single-atom zirconium-doped copper oxide precursor electrode material; and performing electrochemical reduction treatment on the benzothiadiazole modified single-atom zirconium-doped copper oxide precursor electrode material to obtain a benzothiadiazole modified single-atom zirconium-doped metal copper electrode material. The electrode material is applied to an electro-reduction carbon dioxide reaction as a working electrode, exhibits excellent electro-reduction CO2 performance in an acidic environment, and realizes high-value-added C 2+ product with high selectivity.
Owner:ZHEJIANG UNIV

Preparation and application of molybdenum and indium co-modified cobalt-based catalyst for carbon dioxide hydrogenation to lower alcohols

The application relates to a preparation and application of a molybdenum and indium co-modified cobalt-based catalyst for carbon dioxide hydrogenation synthesis of low-carbon alcohol, belonging to the field of catalysis. Co is used as an active component, In and Mo components are introduced, an alkali metal K additive is introduced, an In and Mo co-modified Co-based oxide precursor is created by adopting a sol-gel method, the precursor is reduced by hydrogen, and is further activated by CO2+H2, so that the In and Mo co-modified Co2C catalyst is obtained; the catalyst is used in a reaction of carbon dioxide hydrogenation for preparing low-carbon alcohol, under the condition that the reaction temperature is 340 DEG C and the reaction pressure is 3 MPa, the carbon dioxide conversion rate is more than 35%, and the low-carbon alcohol selectivity is close to 20%.
Owner:BEIJING UNIV OF TECH

Lattice distortion induced catalyst for catalytic oxidation of acetone and preparation method thereof

The invention relates to the technical field of preparation of integral foam metal catalysts, in particular to a lattice distortion induced catalyst for catalytic oxidation of acetone and a preparation method thereof, and the preparation method comprises the following steps: step 1, selecting and cutting raw materials; step two, acid pretreatment and cleaning; 3, preparing a solution; step 4, hydro-thermal synthesis; 5, washing and drying the catalyst; and 6, performing electrothermal induction on the catalyst. The lattice distortion induced monolithic catalyst for electrothermal concerted catalytic oxidation of acetone is prepared in a hydrothermal synthesis manner, active component loading and electronic structure regulation are synchronously realized, energy consumption is remarkably reduced in catalytic oxidation of acetone, the problems of catalyst sintering and active center inactivation are relieved, and the method is suitable for industrial production. And the activity at low temperature is improved.
Owner:UNIV OF SCI & TECH BEIJING

A proton sponge modified fluorine atom doped copper electrode material and a preparation method and application thereof

ActiveCN120485862BHighly selective electroreductioninhibit migrationElectrolytic organic productionElectrodesPtru catalystCopper fluoride
The application relates to the development and technical field of electrocatalysts, and discloses a preparation method and application of a proton sponge modified fluorine atom doped metal copper electrode material, which comprises the following steps: adding a dispersion solution of a proton sponge into a dispersion solution of a hydroxyl copper fluoride precursor to obtain a mixed solution; uniformly spraying the mixed solution on a polytetrafluoroethylene film substrate loaded with copper nanoparticles to obtain a proton sponge modified hydroxyl copper fluoride precursor electrode material; and then electrochemically reducing the proton sponge modified hydroxyl copper fluoride precursor electrode material to obtain the proton sponge modified fluorine atom doped metal copper electrode material. The application further discloses the proton sponge modified fluorine atom doped metal copper electrode material obtained by the above preparation method and application of the proton sponge modified fluorine atom doped metal copper electrode material to an electro-reduction carbon dioxide reaction as a working electrode. The electrode material provided by the application exhibits excellent electro-reduction CO2 performance in an acidic environment, and realizes the preparation of high-value C 2+ products with high selectivity under an industrial-grade current density.
Owner:ZHEJIANG UNIV

Application of plateau safflower flavonoids in preparation of products for improving senile cognitive dysfunction

PendingCN122582229AOvercome side effectsInhibit peripheral inflammation
This invention relates to the field of biomedical technology, and in particular to the application of plateau cattail pollen flavonoids in the preparation of products that improve age-related cognitive dysfunction. This invention provides plateau cattail pollen flavonoids derived from the Lalu Wetland National Nature Reserve in Tibet. These plateau cattail pollen flavonoids can achieve safe and efficient relief of age-related cognitive dysfunction through multi-target synergistic effects, including "regulating gut microbiota to reshape microecological balance, repairing the intestinal barrier to inhibit peripheral inflammation, and crossing the blood-brain barrier to directly inhibit acetylcholinesterase activity." This overcomes the shortcomings of existing technologies, such as the large side effects and poor long-term tolerance of synthetic drugs, and the single target and difficulty in effectively regulating the "microbe-gut-brain axis" of ordinary natural products.
Owner:TIBET ACAD OF AGRI & ANIMAL HUSBANDRY SCI

Polysilicon and organosilicon high-boiling pyrolysis reactor system promoting gas-solid-liquid three-phase mass transfer

The utility model discloses polycrystalline silicon and organic silicon high boiling pyrolysis reactor system of promoting gas solid liquid three -phase mass transfer relates to chemical industry technical field. The polycrystalline silicon and organic silicon high boiling pyrolysis reactor system of promoting gas solid liquid three -phase mass transfer, including reactor main part, catalyst stacking unit, liquid distributor main part and gas distribution unit. The polycrystalline silicon and organic silicon high boiling pyrolysis reactor system of promoting gas solid liquid three -phase mass transfer, gas catalyst passes into the exhaust pipe through the communication groove, and then gas catalyst is evenly sprayed into the catalytic filler of loading net cylinder through the spray head, and the liquid raw material is evenly flowed through the catalytic filler of loading net cylinder through the liquid distribution port, so that the gas and solid catalyst are mixed in the loading net cylinder, the reaction rate is improved, and the uniformity of mixing is ensured, the mixing effect of liquid raw material and gas is improved, and the reaction and product generation are accelerated.
Owner:NINGXIA SHENGLAN CHEM ENVIRONMENTAL PROT TECH CO LTD

Solid waste-based self-compacting super-waterproof backfill material and preparation method thereof

The application discloses a solid waste-based self-compacting super-waterproof backfill material and a preparation method thereof, and the solid waste-based self-compacting super-waterproof backfill material is formed by mixing and stirring slag and a solid waste-based high-impervious curing agent and water; the solid waste-based high-impervious curing agent comprises steel slag powder, granulated blast furnace slag, fly ash, red mud, industrial by-product gypsum, hydrophobic organic acid salt, alkali metal lactate, high-performance polycarboxylate water reducer and dispersant. Physical-chemical reactions occur in the mixing and stirring, a large amount of cementing bodies are generated in the curing process, the inter-particle pores of soil are filled, the structure is compacted, the strength is high, and the imperviousness is good; the application focuses on the solid waste resource utilization demand, has the advantages of high solid waste utilization rate, low economic cost, high fluidity, good waterproof performance and the like; and the application changes the need of adding cement clinker in traditional backfill materials, and is more economical and environment-friendly.
Owner:CHANGZHOU ARCHITECTUAL RES INST GRP CO LTD

A method for preparing modified phosphogypsum base material for road engineering

PendingCN122079517ARealize network reconstructionImprove water stabilityHydration reactionEtching
This application relates to the field of road engineering materials technology, and discloses a method for preparing modified phosphogypsum base material for road engineering, comprising the following steps: mixing aged phosphogypsum with ferrous sulfate heptahydrate, sodium fluorosilicate, and manganese sulfate monohydrate, utilizing the inherent moisture of the phosphogypsum to dissolve the salts and form an acidic slurry; adding heat-curing dry powder and high-speed shearing, utilizing the heat of hydration to raise the temperature to 65℃-85℃ to create a high-temperature strong alkaline environment, initiating manganese catalytic oxidation and slag thermal etching; subsequently, high-pressure injection of a rapid cooling conditioning liquid, utilizing the latent heat of vaporization to rapidly cool to below 45℃ to complete rapid cooling quenching and slow setting locking; unloading and aging to obtain the modified phosphogypsum base material. This invention, through the release of chemical energy by quicklime hydration to construct a high-temperature strong alkaline reaction field, achieves deep mineralization of impurities and reconstruction of the cementitious material network, significantly improving the water stability and mechanical properties of the base material.
Owner:ZHANJIANG CHANGHE ENVIRONMENTAL PROTECTION TECH CO LTD

Sequential slow-release hydrogen sulfide nerve repair conduit and preparation method thereof

The invention provides a sequential slow-release hydrogen sulfide nerve repair conduit and a preparation method thereof, and belongs to the technical field of biological materials. The sequential slow-release hydrogen sulfide nerve repair conduit comprises degradable temperature-sensitive polyethylene glycol monomethyl ether-poly (cysteine-glycolic acid) hydrogel and a pH response hydrogen sulfide donor, wherein the degradable polymer conduit is filled with the degradable temperature-sensitive polyethylene glycol monomethyl ether-poly (cysteine-glycolic acid) hydrogel, and the pH response hydrogen sulfide donor is loaded on the hydrogel. In the application, the pH response donor can respond to an acidic microenvironment of degradation of polyethylene glycol monomethyl ether-poly (cysteine-glycolic acid) hydrogel, release hydrogen sulfide and relieve the acidic environment generated by degradation of the hydrogel at the same time, and form a dual supply mechanism with cysteine (endogenous hydrogen sulfide precursor) obtained by degradation of the hydrogel; nerve regeneration and angiogenesis are synergistically promoted, and oxidative stress is regulated; and the hydrogel is accelerated to degrade during excessive oxidative stress, so that hydrogen sulfide is released as required, and the core problems of insufficient blood supply, unbalanced acidic microenvironment and slow nerve regeneration are synchronously solved.
Owner:湖北江夏实验室 +1

Circulating fluidized bed ash-based road base cementing material and preparation method thereof

PendingCN122079568AReduced hydrationlow costShrinkage crackingSlag
This invention belongs to the field of industrial solid waste resource utilization technology, and relates to a circulating fluidized bed ash-based cementitious material for road base courses and its preparation method. The raw materials for the road base course cementitious material are composed of the following mass parts: 29-43 parts of circulating fluidized bed ash, 16-27 parts of ground blast furnace slag, 3-6 parts of silica fume, 7-15 parts of P.O42.5 silicate cement, 0.1-0.4 parts of activator, and 27-30 parts of water. The circulating fluidized bed ash is prepared by mixing circulating fluidized bed fly ash and slag in a mass ratio of (2-5):(5-10). This invention effectively alleviates the problems of fast setting time and shrinkage cracking of traditional road base course cementitious materials by utilizing the characteristics of micro-expansion and long hydration time of circulating fluidized bed ash. The advantage of this invention is that it promotes the large-scale utilization of circulating fluidized bed ash and contributes to carbon emission reduction in the road sector.
Owner:SHANXI UNIV

A recovery treatment system for pyrroloquinoline quinone salted mother liquor and crystallized mother liquor

The utility model relates to a pyrrole quinolinone production technical field especially relates to a kind of recovery treatment system for pyrrole quinolinone salting-out mother liquor and crystallization mother liquor, including pyrrole quinolinone salting-out mother liquor conveying pipeline and pyrrole quinolinone crystallization mother liquor conveying pipeline, pyrrole quinolinone salting-out mother liquor conveying pipeline, first concentration kettle, first crystallization, first drying device, sodium chloride storage tank and series connection;Pyrrole quinolinone crystallization mother liquor conveying pipeline, second concentration kettle, dilution kettle, decoloring kettle, first resin column, first pH adjusting kettle, second resin column, second pH adjusting kettle, second crystallization kettle, second drying device, pyrrole quinolinone storage tank are connected in series in proper order.The above-mentioned recovery treatment system design is reasonable, can recycle and utilize sodium chloride in salting-out mother liquor and pyrrole quinolinone in crystallization mother liquor, avoids resource waste.
Owner:ZHUCHENG HAOTIAN PHARMA CO LTD

Time sequence slow-release temperature-sensitive hydrogel as well as preparation method and application thereof

PendingCN121971700ARealize synergyAchieve sustained releaseProsthesisWhite blood cellSodium phosphates
The invention relates to the technical field of biomedical materials and tissue engineering, and discloses sequential slow-release temperature-sensitive hydrogel and a preparation method and application thereof.The preparation method comprises the following steps that a blood sample is subjected to programmed centrifugation, and a gel layer of leukocyte-rich platelet-rich fibrin L-PRF and a gel layer of improved platelet-rich fibrin A-PRF are obtained respectively; and the gel layer is cut into pieces, pre-frozen, freeze-dried, ground and sieved, so that L-PRF freeze-dried powder and A-PRF freeze-dried powder are obtained respectively, and the methacrylic acid gelatin microspheres entrapped with the L-PRF freeze-dried powder are prepared. The microspheres and A-PRF freeze-dried powder are loaded into a temperature-sensitive hydrogel system composed of chitosan, polygalacturonic acid and sodium beta-glycerophosphate, so that the growth factors can be effectively entrapped in the hydrogel structure, and continuous release is realized; the system has good mechanical strength and structural stability, the retention time of the material in vivo is prolonged, and stable three-dimensional network support is provided.
Owner:JILIN UNIVERSITY

Gonococci with single knockout of bfrA gene or double knockout of bfrA gene and bfrB gene and application thereof

This invention provides bfrA Single gene knockout or bfrA Genes and bfrB Double gene knockout of Neisseria gonorrhoeae and its applications involve the field of biotechnology. Research has found that... bfrA Single gene knockout and bfrA and bfrB Double gene knockout of Neisseria gonorrhoeae resulted in increased formation of vesicles on the outer membrane, disruption of the cell wall and cell membrane, reduced adhesion and invasion abilities, decreased bacterial activity, decreased ATP levels, and weakened ability to infect mice. Therefore, knocking out Neisseria gonorrhoeae... bfrA Gene or bfrA and bfrB The dual-gene assay can be used to prepare products for the production of gonococcal outer membrane vesicles and to construct low-pathogenic gonococcal models.
Owner:DERMATOLOGY HOSPITAL SOUTHERN MEDICAL UNIV (GUANGDONG PROVINCIAL DERMATOLOGY HOSPITAL GUANGDONG PROVINCIAL CENT FOR STI & SKIN DISEASES CONTROL & PREVENTION RES CENT FOR LEPROSY CONTROL & PREVENTION CHINA)

Lipid nanoparticle taking zinc phosphate as core, preparation method of lipid nanoparticle and medicine for treating aortic aneurysm

The invention provides lipid nanoparticles taking zinc phosphate as an inner core, a preparation method of the lipid nanoparticles and a medicine for treating aortic aneurysm, and relates to the technical field of biological medicines. The lipid nanoparticles provided by the invention comprise zinc phosphate nanoparticles, DOPA (Dioctyl-Phthalate Polyamide), ionizable cationic lipid, cholesterol and PEG (Polyethylene Glycol) lipid, the zinc phosphate nano-particles are inner cores of the lipid nano-particles. The lipid nanoparticles have excellent biocompatibility and safety and stable structure, and can improve the stability and delivery efficiency of nucleic acid (such as FBN1mRNA) as a carrier, thereby realizing effective treatment of diseases. According to the medicine for treating the aortic aneurysm, provided by the invention, accurate delivery of FBN1mRNA and expression in FBN1 cells can be realized, and angiogenesis and repair are promoted, so that accurate treatment of the aortic aneurysm is realized.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL

A low-dose CT image denoising method

This invention discloses a low-dose CT image denoising method, comprising the following steps: S1: establishing a dataset, defining a set of noisy LDCT images x, and a set of high-quality NDCT images y corresponding to the LDCT image set x; S2: constructing a denoising model with parameter θ. Use templates to build Mapping; S3: Training the denoising model using hybrid loss Set the learning rate and momentum parameters, and use error backpropagation to train the denoising model. S4: Image denoising; After preprocessing the LDCT images in the test set, the images are input into the trained denoising model to obtain the corresponding denoised images. The denoising method proposed in this application takes into account the denoising difficulty of different regions of the image, and adaptively balances them by adding weights. It also promotes the generation of image texture details by losing high-frequency information, thus avoiding the denoised image from becoming overly smooth.
Owner:YANGTZE DELTA REGION INST (QUZHOU) UNIV OF ELECTRONIC SCI & TECH OF CHINA

A catalytic system and its application, and a preparation method of ester compounds

PendingCN122499839Apromote generationstable rearrangement transition state
This invention belongs to the field of catalytic materials technology, specifically relating to a catalytic system and its application, and a method for preparing ester compounds. The catalytic system provided by this invention includes a main catalyst and a co-catalyst; the main catalyst has the structure shown in formula (I), and the co-catalyst has the structure shown in formula (II) or (III). This invention uses an aromatic aldehyde with an ortho-Lewis acid center as the main catalyst and an organic hydrogen bond donor as the co-catalyst to jointly form the catalytic system. The main catalyst promotes the formation of the key Criegee intermediate through Lewis acid interaction; the co-catalyst stabilizes the rearrangement transition state of this intermediate through non-covalent hydrogen bond interactions. This synergistic effect significantly improves the overall reaction rate, achieving high selectivity and high yield synthesis of ester compounds at room temperature and low pressure when using oxygen as the oxidant.
Owner:ZHEJIANG SAINON CHEM

Device for treating organic wastewater through electro-catalysis

The invention relates to the technical field of wastewater treatment, in particular to an electrocatalytic organic wastewater treatment device which comprises a tank body, an outer barrel and an inner barrel, the outer barrel and the inner barrel are arranged in the tank body, the inner barrel is arranged in the outer barrel, a first reaction area is arranged in the inner barrel, a second reaction area is formed between the inner barrel and the outer barrel, and a third reaction area is formed between the outer barrel and the tank body. A communicating hole is formed in the inner barrel and is communicated with the first reaction area and the second reaction area, and an overflow hole is formed in the outer barrel; a feeding assembly is arranged in the first reaction area, polytetrafluoroethylene balls are arranged in the second reaction area, and a waste treatment assembly is arranged in the third reaction area. Meanwhile, non-free-radical active species such as singlet oxygen generated by air on the surfaces of an electric field, ultrasonic waves and a polytetrafluoroethylene material are combined to form a double-effect oxidation system under the combined action of free radicals and non-free radicals, so that the degradation efficiency of organic pollutants is remarkably improved, and the application range of the organic pollutants is remarkably widened.
Owner:CHANGZHOU UNIV

AR-based embroidery method, system, ar glasses, and storage medium

The application belongs to the technical field of embroidery and discloses an AR-based embroidery method, system, AR glasses and storage medium, which comprises the following steps: inputting an embroidery sketch into a cycle generative adversarial network to obtain an embroidery pattern, wherein the cycle generative adversarial network is used for feature fusion of line structures of the embroidery sketch and embroidery patterns and generation of the embroidery pattern; embroidering according to the embroidery pattern by using AR glasses; in the embroidery process, in response to collected eye movement data and brain wave data, inputting the eye movement data and the brain wave data into an emotion model to obtain an emotion quantitative index, searching for the emotion quantitative index in a preset color-emotion association library to obtain a recommended color combination and displaying the recommended color combination. The application can realize convenient and efficient personalized embroidery work creation assistance.
Owner:SOUTH CHINA NORMAL UNIV

A cement-free magnesia castable and a method of using the same

This invention relates to the field of refractory materials technology, and more particularly to a cementless magnesia castable and its application method. The castable consists of aggregate, matrix material, and a water-reducing agent; the aggregate is 60-80 parts of magnesia particles; the matrix material is: fine magnesia powder, active α-Al₂O₃ micro powder, sintered corundum powder, silica micro powder, and aluminum-based metal microcapsules. The application method of the cementless magnesia castable is as follows: the water-reducing agent and matrix material are mixed evenly to obtain a premixed matrix material; the aggregate and premixed matrix material are stirred evenly, water is added and wet-mixed to obtain a slurry; the evenly mixed slurry is poured into a mold, vibrated to form the slurry, and then cured. This cementless magnesia castable exhibits certain initial strength, excellent high-temperature performance, excellent resistance to slag erosion and thermal shock, and a long service life, making it widely applicable in tundishes and ladles.
Owner:WUHAN UNIV OF SCI & TECH +1

Sulfur-oxidizing bacteria-mediated carbon-free autotrophic denitrification water treatment method

ActiveCN122079354Bimprove performanceStrengthen elemental sulfur utilization capabilities
The application provides a sulfur-oxidizing bacteria-mediated carbon-free autotrophic denitrification water treatment method, and the high-performance sulfur-oxidizing bacteria with a polysulfide yield of 35%-42% is prepared through the dual-stress gradient domestication of the mass proportion of elemental sulfur in the sulfur source and the pH of the system; the high-activity bacterial suspension is prepared through centrifugal washing and buffer resuspension; the partitioned fluidized bed reactor is used, the compound sulfur source of elemental sulfur and sodium sulfide with nine waters is proportionally controlled in stages, and under the condition of no organic carbon source, the efficient autotrophic denitrification of the nitrogen-containing wastewater is realized. The denitrification efficiency is high, the operation stability is strong, no organic carbon source needs to be added, the simultaneous removal of multiple pollutants such as total phosphorus and suspended solids can be realized, the effluent quality can stably meet the high-standard discharge requirements, and the application is suitable for the advanced denitrification treatment of tail water of urban sewage treatment plants and industrial low-carbon-nitrogen-ratio wastewater.
Owner:ENG CONSTR MANAGEMENT BRANCH OF NINGBO WATER ENVIRONMENT GRP CO LTD

Cd-polluted soil ecological remediation material based on FeCl3 modified biochar coupled with humus loaded SRB composite bacterial ball and preparation method and application thereof

The present application belongs to the technical field of environmental remediation and soil ecological engineering, and particularly relates to a modified iron biochar-humus-sulfate-reducing bacteria (SRB) composite system for realizing efficient immobilization and ecological remediation of cadmium (Cd 2+ ) in heavy metal contaminated soil. The system can enhance the stability of microbial colonies and has the characteristics of physical and biological synergistic passivation, thereby realizing long-term stabilization and ecological remediation of heavy metals.
Owner:NORTHWEST UNIV

Cu nano-particle / acidified carbon nano-tube catalyst as well as preparation method and application thereof

The invention belongs to the technical field of electro-catalysis, and particularly discloses a Cu nanoparticle / acidified carbon nanotube catalyst and a preparation method and application thereof.According to the preparation method, acidified pretreated carbon nanotubes with good conductivity and high specific surface area are selected as a substrate, CuO nanoparticles are evenly loaded through a hydrothermal method, and the Cu nanoparticle / acidified carbon nanotube catalyst is obtained; and growing a zeolite imidazate framework material-8 (ZIF-8) on the surface of the CuO nanoparticle-loaded carbon nanotube in situ, and regulating the thickness of an ultrathin nitrogen-carbon layer on the surface and coordination of Cu-N by regulating the calcining temperature and time. According to the Cu nanoparticle / acidified carbon nanotube catalyst as well as the preparation method and the application thereof, the Cu nanoparticles are encapsulated in a confined manner, so that long-service-life electrically-driven CO2 is converted into a high-added-value C2 + product, catalytic active sites of the Cu nanoparticles are fully exposed, the charge transfer rate is increased, and the intrinsic activity of the Cu active sites is improved.
Owner:ZHEJIANG UNIV

Viscosity modified material for maintaining homogeneity of self-compacting concrete, preparation method and application

The invention discloses a viscosity modified material for keeping the homogeneity of self-compacting concrete, a preparation method and application. The material comprises the following components in parts by mass: fly ash, slag powder, metakaolin, cellulose ether, limestone powder, zeolite powder, an air entraining agent, a functional component A and a functional component B, wherein the functional component A is prepared by compounding and drying nano silica fume, modified carbon nanotubes subjected to ultrasonic dispersion by sodium dodecyl benzene sulfonate / absolute ethyl alcohol and tungsten disulfide subjected to activation-silanization-polycarboxylic acid modification treatment, and the functional component B is prepared by shearing and uniformly mixing magnesium oxide and a calcium expanding agent at a high speed. The material can improve the viscosity, delay segregation and bleeding and reduce the water use sensitivity under the condition that the yield stress is not obviously improved, meanwhile, the early strength development is promoted, the volume stability is improved, and the durability such as chloride ion permeation resistance is improved, so that the homogeneity and quality consistency of a component in the pouring process and after hardening are guaranteed.
Owner:SHANDONG HI SPEED COMPANY +1

A composite extract of hibiscus flowers, its preparation method and application

The present application discloses a kind of hibiscus compound extract, its preparation method and application.The composite extract includes hibiscus exosome, hibiscus traditional active ingredient, snowbank flower extract and microalgae extracellular polysaccharide, wherein the hibiscus exosome and hibiscus traditional active ingredient are simultaneously extracted from hibiscus raw materials by integrated extraction process.The preparation method includes raw material pretreatment, integrated extraction, separation and purification, synergistic compounding and post-processing, and two types of active substances are efficiently and synchronously obtained by optimizing solvent, temperature, time and purification parameters.The composite extract exhibits excellent anti-aging, anti-inflammatory and moisturizing effects in cosmetics, and has excellent effects of regulating intestinal flora and enhancing immunity in functional foods.The process produces significant synergistic effect by combining specific synergistic components, and the effect is much better than single component or simple mixture, realizing the maximization of plant resources and the synergistic promotion of efficacy.
Owner:JIANGSU RUNJIE BIOTECHNOLOGY CO LTD

Animation generation method and device, electronic equipment and storage medium

The invention provides an animation generation method and device, electronic equipment and a storage medium. The method comprises the following steps: communicating with a first thread in an animation generation process to determine the processing capability of a first processor on a to-be-drawn layer set in a current frame; determining an original layer set used for generating the animation in the to-be-drawn layer set, and calling a sub-thread to perform superposition synthesis processing on the original layer set to obtain a reference layer; and after the processing capability is determined, an animation layer corresponding to the current frame is determined based on a second processor according to the processing capability and the reference layer, and the first processor and the second processor are both used for processing the layers.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Silk fibroin composition for injection and preparation method thereof

The invention provides a silk fibroin composition for injection and a preparation method thereof, and belongs to the technical field of medical cosmetology. The silk fibroin composition is prepared from the following components in percentage by mass: 0.1 to 0.7 weight percent of hyaluronic acid or salt thereof, 0.1 to 10 weight percent of silk fibroin and the balance of phosphate buffer solution. The silk fibroin composition is used for water-light injection, can promote collagen production and inhibit collagen fibrosis, does not have adverse reactions such as skin allergy, hardening and the like, and has the effects of quickly improving the dry state of skin, fading fine wrinkles or wrinkles, replenishing water, preserving moisture and tightening the skin.
Owner:SHENZHEN SILKINSIDE MEDICAL TECHNOLOGY CO LTD

Video generation method, apparatus, device, and storage medium

The present disclosure provides a video generation method and device, equipment and a storage medium, relates to the technical field of computers, in particular to the technical field of artificial intelligence, specifically to the technical field of deep learning, natural language processing, computer vision and the like. The specific implementation scheme is: obtaining description information; determining a target 3D scene matched with the description information; determining sub-scenes matched with each description segment in the description information; determining a camera operation mode of each sub-scene based on a semantic analysis result of each description segment; determining a shot switching mode between the sub-scenes based on a semantic analysis result of adjacent description segments; generating a 3D video description file based on the ordering of each sub-scene, the camera operation mode of each sub-scene, the shot switching mode between the sub-scenes and the description information; and processing the 3D video description file based on a 3D rendering engine to generate a video corresponding to the description information. The embodiment of the present disclosure can automatically match the content of the description information based on the understanding of the description information to generate a high-quality video.
Owner:BAIDU COM TIMES TECH (BEIJING) CO LTD +1