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Training method and training model for image enhancement network, and image enhancement method
InactiveCN109255769AImprove approximationAchieve enhanced effectImage enhancementImage analysisPattern recognitionImage pair
The invention discloses a training method and a training model of an image enhancement network, and an image enhancement method. The training method of the image enhancement network comprises the following steps: acquiring a plurality of training image pairs; Inputting a first image in a training image pair to a pre-trained image generation network, outputting the image after a plurality of convolution processes, and calculating a first loss value of the output image relative to a corresponding second image in the training image pair according to the first loss function; Inputting an output image to a pre-trained image discrimination network, outputting a discrimination value after a plurality of convolution processes, and calculating a second loss value of the discrimination value relative to a preset tag value according to a second loss function; updating the network parameters of the image generation network and the image discrimination network in combination with the first and second loss values until the sum of the first loss value and the second loss value satisfies a predetermined condition, and the training is completed to obtain the trained image generation network as thetrained image enhancement network.
Owner:XIAMEN MEITUZHIJIA TECH
Polysaccharide/calcium orthophosphate composite bone cement and preparation method thereof
InactiveCN101496909AGood biocompatibilityNo adverse reactionBone implantCalcium biphosphateBiocompatibility Testing
The invention discloses a polysaccharide / autosolidification calcium phosphate composite bone cement composition, which comprises the following components in percentage by weight: 10 to 95 weight percent of autosolidification calcium phosphate bone cement and 5 to 90 weight percent of polysaccharide. The bone cement composition can obtain bone cement with high strength, good toughness, strong plasticity, quick solidification, and good biocompatibility and degradability, thereby overcoming the defects of inadequate toughness and slow degradation in human bodies existing in the prior calcium phosphate bone cement materials and the defects existing in a plurality of enhancement methods in the prior art, and better meeting the requirement of operation use.
Owner:EAST CHINA UNIV OF SCI & TECH
BERT-FLAT-based Chinese named entity recognition method
PendingCN112270193AResolve ambiguityStrong semantic expression abilitySemantic analysisCharacter and pattern recognitionPart of speechSemantic representation
The invention relates to the field of natural language processing, in particular to a BERT-FLAT-based Chinese named entity recognition method, which comprises the steps of inputting any Chinese sentence into a trained entity recognition model, and outputting a part-of-speech tagging result of each sentence in a training set to obtain a named entity recognition result. Based on an entity recognition model of BERT-Flat-Lattice-CRF, a BERT pre-training language model and a FlatLatte structure, the BERT pre-training language model learned from a large-scale corpus can calculate vector representation of words through context, ambiguity of the words can be represented, and semantic representation of sentences is enhanced; and according to the method, vocabulary information is introduced into theFlatLatte structure, potential hidden information in the text is fully mined, the vocabulary enhancement effect is achieved, and the Chinese named entity recognition accuracy is remarkably improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
Preparation method for cement auxiliary-grinding strengthener of polyethylene glycol amine ester carboxylic acid system
The invention belongs to the technical field of cement auxiliary-grinding agents, and in particular to a preparation method for a cement auxiliary-grinding strengthener of a polyethylene glycol amine ester carboxylic acid system. The preparation method comprises the following steps: (1) performing esterification reaction on alcohol amines and unsaturated carboxylate in a molar mass ratio to obtain esterification monomers which contain polar groups, such as hydroxyl and carboxyl; (2) adding unsaturated large monomers and water into a reaction container, stirring, heating and dissolving, respectively adding an initiator, the esterification monomers and a chain transfer agent dropwise, preserving the heat after the reaction is performed for a certain period of time, and adjusting the pH of a solution to be neutral after the reaction is completed so as to prepare the cement auxiliary-grinding strengthener of the polyethylene glycol amine ester carboxylic acid system. The cement auxiliary-grinding strengthener fully plays the action mechanism of the polar functional groups, such as the hydroxyl and the carboxyl, on cement; when the using amount is 0.01 to 0.1 percent of the mass of the cement, the yield each grinding machine per hour is improved by 12 to 25 percent, the 3-day strength of the cement can be increased by 2 to 5 MPa, the 28-day strength of the cement can be increased by 4 to 8 MPa, and the aims of stable performance and remarkable effects of auxiliary grinding and strengthening are fulfilled.
Owner:KZJ NEW MATERIALS GROUP CO LTD
Graphene-enhanced Al-based composite solder auxiliary soldering method
InactiveCN105382440AHigh thermal conductivityLow densityWelding/cutting media/materialsSoldering mediaReduction treatmentGas phase
The invention relates to a solder auxiliary soldering method, in particular to a graphene-enhanced Al-based composite solder auxiliary soldering method. The method solves the problems that existing graphene is poor in aluminum base enhancing effect and poor in dispersibility. The method comprises the steps that an oxidized graphene suspension and an aluminum solder suspension are mixed, dried and then placed into a plasma enhanced chemical vapor deposition vacuum device for reduction treatment, then, the mixture is pressed into foils, the graphene / aluminum-based solder foils are placed between to-be-soldered faces of metal to be soldered for vacuum soldering, and the graphene-enhanced Al-based composite solder auxiliary soldering method is completed. The method is used for graphene-enhanced Al-based composite solder auxiliary soldering.
Owner:HARBIN INST OF TECH
Electronic endoscope image enhancement method and device
ActiveCN104103053AReduce performanceImprove performanceImage enhancementGeometric image transformationEndoscopeElectron
The invention provides an electronic endoscope image enhancement method and device. According to the method, by changing the light source output illumination brightness when adjacent two frame images of a camera are imaging, and then, synthesizing the two frame images, endoscope high-dynamic-range image enhancement is realized, and moving object fuzzy imaging due to increase of exposure time is avoided. According to the method, the electronic endoscope device for dynamic-range image enhancement is provided.
Owner:BEIJING HUACO HEALTHCARE TECH CO LTD
Preparation method of carbon nanotube-alumina composite reinforced magnesium-based composite material
InactiveCN102206793AHighlight substantive featuresEvenly dispersedCatalytic pyrolysisMagnesium matrix composite
The invention discloses a preparation method of a carbon nanotube-alumina composite reinforced magnesium-based composite material, which relates to the manufacture of magnesium-based alloy by using a casting method. The preparation method comprises the steps of: step 1, calcining and reducing raw materials of ferric nitrate nonahydrate and alumina in the ratio of (0.07-1.00):1 to obtain an iron / alumina composite catalyst, and finally, performing catalytic pyrolysis reaction by using the mixed gas of nitrogen gas and ethylene in the volume ratio of (6-12):1 for uniformly dispersing carbon nanotubes on the surface of the alumina, so as to prepare a carbon nanotube-alumina composite reinforced phase; and step 2, adding the carbon nanotube-alumina composite reinforced phase to a molten magnesium base material, and stirring and casting to prepare the carbon nanotube-alumina composite reinforced magnesium-based composite material, wherein the added carbon nanotube-alumina composite reinforced phase accounts for 1-15% of the molten magnesium base material by mass percentage. According to the invention, the defect of a magnesium-based alloy texture in the magnesium-based composite material produced in the prior art is overcome, the excellent enhancing effect of the carbon nanotubes in a magnesium matrix can be brought into full play, and the comprehensive performance of the magnesium-based composite material is ensured to be enhanced.
Owner:HEBEI UNIV OF TECH +1
Method for preparing warm composite woven fabric
InactiveCN102181986AElasticIncreased warmth and bulkinessMulti-ply fabricsSwivel-woven fabricsYarnSurface layer
The invention relates to a method for preparing warm composite woven fabric. The warm composite woven fabric is prepared by interweaving a group of warp yarns (1) and three groups of filling yarns in an overlapped way, wherein the three groups of filling yarns are respectively face weft (2), intermediate weft (2') and back weft (2''), the face weft (2), the intermediate weft (2') and the back weft (2'') are arranged according to the proportion of 1:1:1, the warp yarn (1) and the face weft (2) are woven into satin weave which has 8 lines and 5 step weft faces and serves as a surface layer according to a mode of an upper needle and seven lower needles and 5 weft step numbers, the warp yarn (1) and the back weft (2'') are woven into satin weave which has 8 lines and 5 step weft faces and serves as a lining according to a mode of an upper needle and seven lower needles and 5 weft step numbers, the warp yarn (1) and the intermediate weft (2') take honeycomb weave as an intermediate layer in terms of Rj equal to Rw and equal to 8, and the Rj and the Rw are respectively the circulated yarn numbers of warp weave and weft weave. The warm composite woven fabric prepared by the method integrates the characteristics of light weight, super warm property, softness, comfortableness, moisture absorption, air permeability, bacterial resistance and bacterial restraint, and the production is simple and easy to implement.
Owner:江苏保丹服饰有限公司
Image enhancement method based on adaptive immunity genetic algorithm
InactiveCN104123706AIncrease contrastEnhance detailsImage enhancementGenetic modelsPattern recognitionVaccination
The invention discloses an image enhancement method based on an adaptive immunity genetic algorithm. The image enhancement method based on the adaptive immunity genetic algorithm includes steps that S1, normalizing an image pixel gray level f(x, y) to obtain n(x, y); S2, coding parameters (alpha, beta) to be optimized, randomly generating a group of initial individuals to form an initial population, and inputting a control parameter crossover probability p<c>, a mutation probability p<m>, a population size N, a maximum running algebra G and the like; S3, judging whether an evolution algebra t is equal to G, if so, ending the algorithm, and outputting the optimal solution of (alpha, beta), otherwise, turning to the next step; S4, using a roulette strategy to select M individuals, and carrying out crossover and mutation operations on the individuals according to crossover and mutation methods in genetic operation; S5, selecting two vaccines, the individuals to be vaccinated and a vaccination point number to perform immunization, making a immunization choice after the vaccination, and using the optimal individual retention strategy for the vaccinated population; S6, obtaining the corresponding nonlinear transformation function F(u) of each group of (alpha, beta), and using the nonlinear transformation function to perform an image gray level transformation to obtain an output image g(x, y).
Owner:XUZHOU UNIV OF TECH
Color-enhanced sun lenses, sun glasses and equipment, and manufacturing method thereof
InactiveCN106646917AImprove color perceptionIncreased Saturation and PurityOptical partsOptical elementsPhysicsTransmittance
The invention discloses color-enhanced sun lenses, sun glasses and equipment, and a manufacturing method thereof. A full-dielectric multi-layer membrane stack with two selective transmission cut-off belt characteristics is deposited on the front side of a lens body of each solar lens; the lens body is a lens with a neutral attenuation function; and the solar lens needs to meet: the transmittance of 420nm to 465nm waveband is 10 to 60 percent, the transmittance of 475nm to 505nm waveband is less than or equal to 3 percent, the transmittance of 510nm to 575nm waveband is 10 to 60 percent, the transmittance of 580nm to 610nm waveband is less than or equal to 3 percent, and the transmittance of 615nm to 670nm waveband is 10 to 60 percent. A proper high and low refractive index membrane layer is selected, so that cut-off transmission is conducted at the specific waveband, red, green and blue visible light wavebands are specifically attenuated and transmitted, all the environment representational information, bright and dark information and enhanced color information are acquired, the anomalopia problem is weakened, and the outdoor activity quality and the satisfaction degree of the group are improved.
Owner:杨陈楹 +1
Fluorine oxidized graphene/polyimide composite material, preparation method and application thereof
ActiveCN108484909AHigh tensile strengthReduce coefficient of frictionPolymer sciencePolymer composites
The invention discloses a fluorine oxidized graphene / polyimide composite material, a preparation method and application thereof. Active groups are contained in the surface of fluorine oxidized graphene, compared with graphene, an agglomeration phenomenon is unlikely to occur, the dispersibility inside a polymer is preferable, a relatively high mutual effect can be formed directly on the interfaceof the polymer, and the reinforced effect of the fluorine oxidized graphene inside the polymer composite material is realized; the fluorine oxidized graphene can be used for preparing the fluorine oxidized graphene / polyimide composite material; and the fluorine oxidized graphene / polyimide composite material has the characteristics of high tensile strength, low friction coefficient, low volume abrasion rate, corona resistance and the like. The fluorine oxidized graphene can be mixed with dianhydride monomers and diamine monomers, and through the steps of ultrasonic treatment, stirring, warmingand the like, the fluorine oxidized graphene / polyimide composite material is prepared and obtained. The fluorine oxidized graphene / polyimide composite material is simple and practical in preparation technology, convenient in operation and high in universality.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Hydrolysis-resistant nylon composite material and preparation method thereof
The invention discloses a hydrolysis-resistant nylon composite material and a preparation method thereof. The material comprises the following components in percentage by weight: 45-75 percent of nylon resin, 0.1-1 percent of hydrolysis resisting agent, 0.1-1 percent of heat stabilizer, 0.1-1 percent of antioxidant, 0.1-1 percent of coupling agent, 0.1-5 percent of lubricant and 20-50 percent of hydrolysis-resistant glass fiber. The hydrolysis-resistant nylon composite material solves the difficulties of the water assistance technique, improves the heat resisting temperature and the hydrolysis resistance of nylon, and maintains higher mechanical performance at the same time of obtaining high-temperature resistance and hydrolysis resistance.
Owner:ANHUI KEJU NEW MATERIALS
Front-end portrait encryption and recognition method for biological characteristic privacy protection
ActiveCN111737706AAchieve denoising effectAchieve enhanced effectImage enhancementImage analysisVideo streamingPrivacy protection
The invention discloses a front-end portrait encryption and recognition method for biological characteristic privacy protection. The method comprises the steps: portrait data collection: photographinga video stream with portrait biological characteristics through a front-end camera; portrait preprocessing: attenuating the image noise of different intensities to different extents by using an adaptive fractional order integral algorithm to realize the adaptive denoising effect of the image, and detecting the dynamic portrait position of the video by using a portrait positioning algorithm; portrait encryption: gray scrambling and diffusion are performed on portraits by using a pseudo-random sequence generated by a chaotic system, so that encrypted portraits can be obtained, and an encryptedportrait library can be established; and encrypted portrait recognition: taking the encrypted portrait library as a training set to train a portrait recognition model, and directly recognizing the encrypted to-be-detected portrait. According to the invention, image encryption is applied to portrait recognition, and an encrypted portrait recognition method is utilized, so that the risk of privacy leakage in the decryption process is avoided, and the problem of personal privacy leakage caused when a portrait recognition product is used is avoided.
Owner:SOUTH CHINA UNIV OF TECH
Estimation method for video image illumination distribution
The invention discloses an illumination distribution evaluation method of a video image, comprising the steps as follows: by gradient screening, the gradient vector influence on a part where a gradient magnitude is larger than a gradient threshold value or on edges is eliminated; and an illumination image reconstruction is carried out to a gradient vector image after screening so as to obtain an illumination image, thereby effectively eliminating the influence on the statistics of image illumination distribution, which is caused by the serious change of reflectivity of a scene surface, and accurately evaluating the characteristics and distribution change of light source illumination in a video collecting scene. The illumination distribution evaluation method can be combined with subsequent image enhancement processing such as histogram equalization, gamut mapping, gamma correction and the like, thereby achieving the effect of enhancing the video image quality.
Owner:SICHUAN PANOVASIC TECH
Method for in-situ reinforcement of performance of paper-based material by aramid nanofibers
ActiveCN111304955AImprove retentionDoes not affect operationReinforcing agents additionPaper/cardboardNanofiberUltimate tensile strength
The invention discloses a method for in-situ reinforcement of performance of paper-based material by aramid nanofibers. Aramid fiber dissolving solutions with different concentrations are used for treating different aramid fiber paper-based composite materials. According to the method, the strength performance and the breakdown performance of the paper-based composite material can be improved to agreat extent, the satisfactory effect can be achieved on improvement of the performance of the paper-based composite material, operation is convenient and easy, glue-free reinforcement is achieved, the material can be used under complex conditions, and the method is high in applicability and has good application prospects.
Owner:SHAANXI UNIV OF SCI & TECH
Method for preparing high-pressure-resistance alumina grinding medium through roll forming
ActiveCN105924140AAvoid layeringAchieve enhanced effectOther chemical processesWork in processHigh pressure
The invention discloses a method for preparing a high-pressure-resistance alumina grinding medium through roll forming. The method is especially suitable for preparing 13 mm-30 mm dry grinding balls used in the dry grinding field. The method includes the steps that firstly, spray drying is carried out, and conventional alumina granulation powder is directly obtained and serves as granulation powder A; superfine collected dust powder collected from a dust collector in preparation of the conventional granulation powder A serves as granulation powder B; a large amount of PVA is added, the spray drying temperature is increased, and granulation powder C is obtained; the granulation powder A, the granulation powder B and the granulation powder C are rolled in a coater according to a certain proportion and then screened, and semi-finished ball blanks with the diameter of 10-20 mm are obtained; the semi-finished ball blanks are rolled with a grinding material A till a 13-30 mm target semi-finished product is formed; finally, drying and firing are carried out, and the finished product is obtained. According to the method, the ball blanks similar to those prepared through isostatic forming are obtained by compounding the granulation powder with different characteristics, so that the ball blanks contain certain air holes, cracks caused by heat shock in the firing and cooling processes are reduced, and the reinforcing and toughening effects are achieved.
Owner:山东谊星新材料有限公司
Negative ion pulse intensifier
The invention relates to a negative ion pulse intensifier which comprises a high-voltage insulating square housing, an inner housing, a negative-ion generator incoming end and a negative ion accelerator releasing end, the negative ion pulse intensifier is characterized in that: an accelerating inner barrel of which section is hyperbolic is arranged in the inner housing, two ends of the accelerating inner barrel and two ends of the inner housing are connected in matching and sealing manner, natural mineral powders doped with nanographene powders are filled in the accelerating inner barrel, an electric conductor for accommodating negative ion emitting carbon fiber is arranged on the negative-ion generator incoming end and on the center of the accelerating inner barrel end, and the end face of the releasing end of a negative ion accelerator is externally connected with carbon nanofibres of a negative-ion emitter through wires. According to the invention, a good performance of guiding negative ion of nanographene particles and Venturi effect in fluid are applied to negative ion flowing, problems of small emitting spacial scale of the negative-ion emitter, low negative ion reactivity and slow migration rate are solved.
Owner:慈溪市香格电器有限公司
Energy-saving reinforced type liquid grinding aid for cement and preparation method thereof
The invention relates to an energy-saving reinforced type liquid grinding aid for cement, which comprises the following raw materials in percentage by weight: 5-15% of triethanol amine, 1-10% of sodium tripolyphosphate, 5-10% of aluminum sulfate solution, 3-10% of sodium dodecyl benzene sulfonate, 5-10% of diethylene glycol, 5-10% of sodium acetate and the balance of water. The liquid grinding aid is favorable for not only improving cement production efficiency and cement specific surface area, but also improving cement compression strength and increasing the addition of admixtures. Meanwhile, the invention further discloses a preparation method of the grinding aid.
Owner:兰州宏方新型建材科技有限公司
Graphene and metal conformal nanoprobe enhanced Raman infrared dual-spectrum device and preparation method
ActiveCN108254353ALarge specific surface areaGood biocompatibilityRaman scatteringColor/spectral properties measurementsParallel plateFermi level
The invention discloses a graphene and metal conformal nanoprobe enhanced Raman infrared dual-spectrum device. The graphene and metal conformal nanoprobe enhanced Raman infrared dual-spectrum device comprises a substrate, a metal nanoprobe, a dielectric layer, a graphene nanoprobe, a source electrode and a drain electrode. The metal nanoprobe and the graphene nanoprobe are the same in shape. Moreover, the metal nanoprobe serves as a grid electrode, and the dielectric layer is clamped between the metal nanoprobe and the graphene nanoprobe to form a structure similar to a parallel plate capacitor. External voltage is directly applied between the metal nanoprobe and the graphene nanoprobe, so that the Fermi energy of graphene can be adjusted. Under the radiation of visible light wave band laser, the local area surface plasmons of the metal nanoprobe are stimulated, and the Raman scattering signal of trace molecules can be enhanced; and under the radiation of infrared light wave, the localarea surface plasmons of the graphene nanoprobe are stimulated, and the infrared absorption spectrum signal of the trace molecules can be enhanced dynamically in a broadband range. The device has theadvantages that the enhanced wave band can be tuned by an external electric field, the detection sensitivity is high, the detection substance variety range is wide and the stability is high.
Owner:CHONGQING UNIV
Small sample face recognition method combining sparse representation and neural network
PendingCN111126307AAchieve enhanced effectPreserve featuresCharacter and pattern recognitionInternal combustion piston enginesCosine similarityNeural network nn
The invention discloses a small-sample face recognition method combining sparse representation and a convolutional neural network, and the method comprises the following steps: firstly carrying out the preprocessing of a face image, carrying out the face alignment and five-sense-organ positioning according to face key points, and cutting the face image into four local regions; extacting local features and overall features with higher discrimination by using a convolutional neural network, and constructing a block feature dictionary in combination with a sparse representation algorithm, so as to achieve the effect of sample enhancement; adding sparse representation constraints and cosine similarity to redefine a loss function of the convolutional neural network so as to reduce the intra-class distance between the features and expand the inter-class distance; and finally, carrying out face recognition by adopting enhanced sparse representation classification. The method is high in recognition performance, and has certain robustness for shielding changes in a small sample problem.
Owner:SOUTHEAST UNIV
Compound modified biomass fibrilia and preparation method thereof
The invention relates to a compound modified biomass fibrilia and a preparation method thereof and develops a rare earth compound modified fibrilia, which is characterized in that maleic anhydride grafted polypropylene is grafted and coated on the outer surface of natural fibrilia modified by rare earth. The preparation method comprises the following steps of: impregnating the natural fibrilia in a certain rare earth solution at normal temperature or low temperature for 1-2 hours, filtering and drying; and then coating the maleic anhydride grafted polypropylene on the fibrilia treated by the rare earth by adopting an extruding method to obtain the compound modified biomass fibrilia. The compound modified method can effectively eliminate the problems of surface structural defects and impurities, change the surface polarity and the hydrophily, greatly improve the interface bonding force of the fibrilia and a polymer matrix material, can be expected to be made into a fibrilia / polymer composite material with strong interface bonding capability and excellent mechanical property and ensures that the modified natural fibrilia and a composite material thereof can be more widely applied to the field of buildings, vehicle trimmers, office furniture and the like. The modified method has the advantages of simple operation, scale, no pollution and environment friendlessness.
Owner:HUNAN UNIV +1
Cable duct box device for rail transportation
ActiveCN104158133AReduce combustion heatWon't happenElectrical apparatusLow densityUltimate tensile strength
The invention provides a cable duct box device for rail transportation. The cable duct box device comprises a plurality of cable duct box units sequentially connected end to end and made of composite material, and sealing assemblies arranged at the joints of the cable duct box units. Each sealing assembly includes a sealing pressing strip (2) and a cushion block (1). Each cushion block (1) is arranged at the bottom of the corresponding joint of the cable duct box units, each sealing pressing strip (2) seals and presses the upper surface and the side faces of the corresponding joint of the cable duct box units, and each sealing pressing strip (2) and the corresponding cushion block (1) are detachably connected. The cable duct box device for rail transportation has the advantages of high flame retardancy, low smoke toxicity, high strength, low density, good aging-resistant performance, convenient installation, low cost, short production cycle, and the like.
Owner:NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
Millimeter wave passive image enhancement method based on target polarization radiation characteristics
ActiveCN106384341AAchieve enhanced effectEffective combinationImage enhancementImage analysisImaging processingMillimetre wave
Owner:NANJING UNIV OF SCI & TECH
High strength viscose and preparation method thereof
ActiveCN106012075AImprove compatibilitySimple processMonocomponent cellulose artificial filamentViscosePolymer science
The invention discloses high strength viscose and a preparation method thereof. The viscose satisfies the following conditions: the dry breaking strength is not less than 3.10cN / dtex; the wet breaking strength is not less than 1.6cN / dtex; the dry elongation at break is 14.0-19.0%. The preparation method comprises the following processes: synthesizing modified melamine formaldehyde resin as a reinforcing agent, then rapidly blending the modified melamine formaldehyde resin with a viscose solution and adopting conventional spinning technology to prepare the high strength viscose. The preparation method of the high strength viscose, which is provided by the invention, is simple in process operation and has the effect of solving the problem of poor compatibility of the melamine formaldehyde resin and the viscose. The viscose prepared by the method has greatly improved strength than common viscose and has a good application prospect.
Owner:TIANJIN POLYTECHNIC UNIV
High-strength modified synthetic fiber reinforced reactive powder concrete
PendingCN111233383AHigh tensile strengthIncrease elasticityMonocomponent polyolefin artificial filamentMonocomponent polyesters artificial filamentSynthetic resinSynthetic fiber
The invention discloses high-strength modified synthetic fiber reinforced reactive powder concrete. High-strength modified synthetic fibers are doped into the reactive powder concrete, wherein the content of the high-strength modified synthetic fibers in the reactive powder concrete is 0.1-100 kg / m3; the high-strength modified synthetic fiber is obtained by modifying synthetic resin or synthetic fiber with a modifier, wherein the active powder concrete is produced by taking cement, mineral admixtures and other active powder materials, fine aggregate, additives and water as raw materials. Due to the fact that polar groups such as Si, Si-O, -OH and -COOH are grafted to the surface of the synthetic fiber through the modifier, so that the groups react with active powder minerals in the activepowder concrete, and the strength, dispersion and binding power with the concrete of the fiber are greatly improved.
Owner:殷石
Biological orthogonal Raman in-situ detection method for conformation changes of protein
InactiveCN106932375AQuick checkSensitive and efficient detectionRaman scatteringProtein targetProtein insertion
The invention relates to a biological orthogonal Raman in-situ detection method for conformation changes of protein, in particular to a method for detecting conformation changes of protein through a biological orthogonal Raman report group specificity marking. The method comprises the following steps that 1, unnatural amino acid with a biological orthogonal Raman report group is prepared; 2, the unnatural amino acid prepared in the step 1 is inserted into target protein through a gene extension technique to achieve biological orthogonal Raman report group marking on the target protein; 3, the protein obtained in the step 2 is detected through a biological orthogonal Raman technique. According to the method, the conformation changes of the protein with the biological orthogonal group under different environment conditions or activity conditions are sensitively and efficiently detected through a gene codon amplification technique and an SERS enhancement method, and a connection between an analysis solution and the protein conformation and function in a cell system is achieved.
Owner:PEKING UNIV +1
Resource reutilization method by utilization of copper-clad plate residue
The invention discloses a resource reutilization method by the utilization of copper-clad plate residue. The method comprises the following steps: immersing copper-clad plate residue in a sulfuric acid solution with the concentration of 0.1-1.0 wt% for 2-5 hours based on weight of the copper-clad plate residue, adding 0.5-1.5% of an organo-silicone peroxide coupling agent and 0.5-1.5% of a KH570 coupling agent, immersing for 0.5-2 hours, dehydrating the copper-clad plate residue, and drying at 100-120 DEG C for 1-2 hours to obtain pretreated copper-clad plate residue; and stirring and uniformly mixing 40-70 wt% of the pretreated copper-clad plate residue, 10-20 wt% of a calcium carbonate powder and 10-40 wt% of resin, molding, solidifying, cutting, and polishing to prepare a novel plate. According to the invention, comprehensive utilization of the copper-clad plate residue can be promoted so as to change a waste material into a valuable thing, and a novel plate with high bending strength can be prepared.
Owner:SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP +1
Partial color transferring method and transferring device based on color classification
InactiveCN103065317AAchieve color transferAccurate segmentationImage enhancementImage analysisStellar classificationImage area
The invention discloses a partial color transferring method and a transferring device based on color classification, wherein the method comprises the following steps: classifying pixels of an original image, segmenting an image target area with the color transferring, correcting boundaries of the image target area, and conducting the color transferring to pixels of the image target area with the boundaries corrected. According to the partial color transferring method and the transferring device based on color classification, precise image area segmentation can be achieved, the color transferring can be conducted to the image target area precisely according to expectation of a user, an image enhancing effect is effectively achieved, a natural image effect is achieved, and meanwhile consumption in a color transferring process is reduced.
Owner:SUN YAT SEN UNIV
Novel temperature-response inorganic pyrophosphatase conjugate synthesis and application of conjugate to enhanced polymerase chain reaction
ActiveCN104862288AIncrease temperatureImprove heat resistanceHydrolasesMicrobiological testing/measurementTemperature responseHeat stability
The invention relates to novel temperature-response inorganic pyrophosphatase conjugate synthesis and application of the conjugate to enhanced polymerase chain reaction, belongs to the field of polymer-protein coupling techniques and application of the polymer-protein coupling techniques to biology, and provides a strategy of enhancing PCR (polymerase chain reaction) efficiency. By the aid of the polymer-protein coupling techniques, temperature-response PNIPAM (polymer N-isopropylacrylamide) is modified in a site-directed manner near the active center of inorganic PPase (pyrophosphatase), heat stability of protein is enhanced to adapt to the condition of PCR high-temperature long-time circulation, and PCR is enhanced by the aid of the capacity of catalytic decomposition of pyrophosphoric acid.
Owner:SUZHOU UNIV
Highly durable super-hydrophilic coating
ActiveCN109401367AImprove high temperature and high humidity performanceReduce surface tensionAlkali metal silicate coatingsHydrophilic coatingSurface layer
Theinvention relates to a highly durable super-hydrophilic coating, comprising a base material, a surface layer and a bottom layer between the base material and the surface layer, wherein the bottom layer is an alcoholic super-hydrophilic silicone coating, and the surface layer is an inorganic water glass layer. The highly durable super-hydrophilic coating can greatly enhance the material bindingforce while retaining the super-hydrophilic surface, and can be used for a long time at normal temperature or high temperature and high humidity.
Owner:江苏先进无机材料研究院
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