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86results about How to "Strong binding" patented technology

Colloidal gold test strip for double-amplification system and preparation method thereof

The invention belongs to the field of medical clinical immediate tests, and relates to a colloidal gold test strip for a double-amplification system and a preparation method thereof. The colloidal gold test strip for the double-amplification system comprises a test strip bottom lining, and a sample pad, a polyester film coated with a gold-labeled antibody, a coating film and absorbent paper whichare lapped with and adhered to the test strip bottom lining in turn, wherein the middle part of the coating film is parallelly provided with a detection line coated with streptavidin and an F(ab)2 fragment of a monoclonal antibody of an antigen to be detected, and a control line coated with a rabbit anti-rat immunoglobulin G (IgG) antibody; the F(ab)2 fragment of the monoclonal antibody of the antigen to be detected and biotin are coated in the sample pad; and the gold-labeled antibody is colloidal gold labeled protein A and the monoclonal antibody of the antigen to be detected. The test strip has the advantages of high specificity, sensitivity and detection speed, has low cost, is easy to operate, can be widely applied to the detection of the antigen to be detected, and lays a foundationfor the timely discovery and prediction and effective detection of diseases, and an instrument and equipment are not required to be used.
Owner:GETEIN BIOTECH

Anti-pollution separation membrane and preparation method

The invention discloses an anti-pollution separation membrane and a preparation method, wherein aiming at the shortages of a preparation technology for the present anti-pollution PVDF (polyvinylidene fluoride) separation membrane, the invention provides a novel method for preparing an anti-microbial pollution PVDF separation membrane. The novel method provided by the invention comprises the following steps of: synthesising the random copolymer with a zwitterionic structure, of MMA (methl methacrylate), DMC (dimethyl carbonate) and AMPS (2-acrylamido-2-methylpropane sulfonic acid) via free radical polymerization at first, adding the copolymer and a porogenic agent, i.e., polyethylene glycol (PEG) in PVDF, and preparing the anti-pollution separation membrane by using N,N-dimethyl formamide (DMF) as a solvent and using water as a coagulating agent through a phase inversion method. Electropositive quaternary amine group and electronegative sulfonic group exist in the structure of the copolymer simultaneously, and have a binding capacity for water molecules which is much stronger than the binding capacity of traditional polyethylene glycol and the derivatives of the traditional polyethylene glycol, and the formed hydration layer is more stable; therefore, the prepared novel PVDF membrane is lasting in anti-pollution performance.
Owner:TIANJIN POLYTECHNIC UNIV

High-speed translational movement parallel mechanism with three degrees of freedom

ActiveCN103264386AImproved ability to resist side loadsStrong bindingProgramme-controlled manipulatorPhysicsTwo degrees of freedom
The invention discloses a high-speed translational movement parallel mechanism with three degrees of freedom. The high-speed translational movement parallel mechanism comprises a fixed platform, a moving platform and three moving branched chains with identical structures; the three moving branched chains are connected between the fixed platform and the moving platform in parallel, each moving branched chain comprises a driving arm and a composite secondary branched chain with two degrees of freedom, and each composite secondary branched chain with the two degrees of freedom can translate in three-dimensional space; and the fixed platform is connected with the driving arms by rotation pairs, lower ends of the composite secondary branched chains are directly fixed to the moving platform, and the driving arms are connected with the composite secondary branched chains by rotation pairs or hooke joints. The high-speed translational movement parallel mechanism with the three degrees of freedom has the advantages that the moving branched chains comprise the composite secondary branched chains, so that independent secondary assemblies can be formed, and the high-speed transitional movement parallel mechanism is high in moving platform gesture restraining capacity and is favorable for high-speed movement; and a spatial polyhedron can be formed on the moving platform by centers of tail-end hinges of the moving branched chains of the mechanism, so that the mechanism is high in lateral load resistance.
Owner:NANJING UNIV OF SCI & TECH

Tunnel excavation three-dimensional model experiment loading device

The invention relates to a tunnel excavation three-dimensional model experiment loading device. The device comprises a loading frame, a front baffle, a rear baffle and self-balancing reaction frames, wherein the loading frame comprises frame columns, a moving cross beam and an upper cross beam; a plurality of lateral hydraulic cylinders are symmetrically installed on the inner sides of the frame columns; a plurality of vertical hydraulic cylinders are installed at the bottom of the moving cross beam; a lifting device is installed on the upper cross beam; the front baffle comprises a transparent organic glass baffle and a steel channel baffle; a hole is cut in the organic glass baffle; the organic glass baffle is arranged on the inner side of the steel channel baffle; more than one self-balancing reaction frame is arranged outside each of the front and rear baffles respectively; a plurality of jacks are arranged between the self-balancing reaction frames and the front baffle; and jack base plates are arranged on the front baffle. The device can generate various rock and soil mass three-dimensional stress fields with different burial depths and geological conditions and can achieve the chamber excavation model experiments under complicated conditions, such as different clear distances, different sections, and the like under high and low unsymmetrical pressure conditions.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY +1

Method for synchronously achieving incineration fly ash detoxification and chromium slag reduction curing

The invention discloses a method for synchronously achieving incineration fly ash detoxification and chromium slag reduction curing. The method includes the following steps that (1), incineration flyash and tuff are weighed, mixed to be uniform and ground, and gelatinized powder is obtained; (2), sodium hydroxide and sodium silicate are weighed, mixed to be uniform and ground, and an alkali activator is obtained; (3), sodium persulfate and sodium oxalate are weighed, mixed to be uniform and ground, and a reductive detoxification inducer is obtained; (4), chromium slag, the gelatinized powder,the alkali activator and the reductive detoxification inducer are weighed, mixed to be uniform and ground, and fly ash and chromium slag powder is obtained; (5), the fly ash and chromium slag powderis weighed and dissolved in water, the materials are mixed to be uniform, and fly ash and chromium slag slurry is obtained; (6), the fly ash and chromium slag slurry is sealed, activated through microwaves, cooled and put in a die to be cured. The leaching concentrations of multiple heavy metals and dioxin in the fly ash and a chromium heavy metal in the chromium slag are all lower than the entrance limiting value of a municipal solid waste landfill. Treated cured bodies have high acid resistance and high constraint capacity for heavy metal inorganic pollutants and organic pollutants.
Owner:浙江中陶环保科技集团有限公司

Preparation method of superhydrophilic anti-pollution PVDF (polyvinylidene fluoride) separation membrane

The invention relates to a preparation method of a superhydrophilic anti-pollution PVDF (polyvinylidene fluoride) separation membrane. An alkaline solution is used to treat PVDF surface to generate double bonds; hyperbranched polyethyleneimine is crosslinked on the PVDF membrane surface via chemical bonds by means of amino-vinyl additive reaction and amino-epoxy ring-opening reaction; the hyperbranched polyethyleneimine on the membrane surface are subjected to amino-epoxy ring-opening reaction with glycidol to obtain the anti-pollution PVDF membrane. The modified PVDF membrane has massive amino groups, hydroxyl radicals and other active groups, so that the membrane surface hydrophilicity is greatly improved. The problem with high hydrophobicity of the PVDF membrane itself is solved; it isavoided that pollutants easily adsorb or deposit on membrane surface or in membrane pores during application; anti-pollution capacity of the membrane is improved; the service life of the membrane is extended. Modifying is carried out herein by chemical processes, the conditions are mild, operating is simple, expensive instruments are not required, and the preparation method is easy to popularize,the product is firm, has good anti-pollution performance and has potential great application value in the water treatment field.
Owner:TONGJI UNIV

Water-based soy protein-based supramolecular sulfur positive electrode binder and preparation method and application thereof

The invention discloses a water-based soy protein-based supramolecular sulfur positive electrode binder and a preparation method and application thereof. The binder is prepared from phosphorylated soybean protein, a lithium ion transmission promoter and a physical cross-linking agent through a physical blending method. The binder has a three-dimensional network cross-linked structure and the characteristics of the raw materials so that the binder has excellent mechanical properties, high ionic conductivity, strong lithium polysulfide adsorption capacity and certain biodegradability. When the binder is applied to the lithium-sulfur battery, the cycle life, the rate capability and the specific capacity of the battery can be effectively improved. A physical blending preparation method is used, a phosphorylated soybean protein aqueous solution, a lithium ion accelerant aqueous solution and a physical cross-linking agent aqueous solution are directly mixed to obtain the binder which is cross-linked by intermolecular hydrogen bonds and has a three-dimensional network structure, the process conditions are simple, efficient and convenient, and no pollution is caused to the environment whenwater is used as a solvent.
Owner:SOUTH CHINA UNIV OF TECH

Whole-cycle ambiguity single epoch determining method for Beidou system reference station

ActiveCN104898144AAvoid processing workEliminate the effects of ambiguity resolutionSatellite radio beaconingDouble differenceTroposphere
The invention provides a whole-cycle ambiguity single epoch determining method for a Beidou system reference station, which belongs to the technical field of satellite positioning systems and positioning measurement. According to the whole-cycle ambiguity single epoch determining method, the phase of a whole-constellation three-frequency carrier is sufficiently utilized for observing data. The method comprises the steps of establishing an integer linear relationship between the phase whole-cycle ambiguities of carriers B2 and B3 in which a satellite orbit error and a troposphere error are eliminated; establishing an equal-proportion integer linear relationship between the phase whole-cycle ambiguities of the carriers B2 and B3; performing single epoch determination for the phase whole-cycle ambiguities of the carriers B2 and B3; and through the integer linear relationship between the phase whole-cycle ambiguities of the three-frequency carriers of a Beidou system, realizing single epoch determination for the whole-cycle ambiguity of the phase observed value of the three-frequency carriers of a Beidou system reference station. According to the whole-cycle ambiguity single epoch determining method, whole-cycle ambiguity determination is performed on a single double-difference satellite; resolving for a Beidou system reference station net carrier phase observation equation set is not required, and calculation amount in determining the ambiguity is reduced.
Owner:开普勒卫星科技(武汉)有限公司

Anti-fouling separation membrane and preparation method thereof

The invention discloses an anti-pollution separation membrane and a preparation method, wherein aiming at the shortages of a preparation technology for the present anti-pollution PVDF (polyvinylidene fluoride) separation membrane, the invention provides a novel method for preparing an anti-microbial pollution PVDF separation membrane. The novel method provided by the invention comprises the following steps of: synthesising the random copolymer with a zwitterionic structure, of MMA (methl methacrylate), DMC (dimethyl carbonate) and AMPS (2-acrylamido-2-methylpropane sulfonic acid) via free radical polymerization at first, adding the copolymer and a porogenic agent, i.e., polyethylene glycol (PEG) in PVDF, and preparing the anti-pollution separation membrane by using N,N-dimethyl formamide (DMF) as a solvent and using water as a coagulating agent through a phase inversion method. Electropositive quaternary amine group and electronegative sulfonic group exist in the structure of the copolymer simultaneously, and have a binding capacity for water molecules which is much stronger than the binding capacity of traditional polyethylene glycol and the derivatives of the traditional polyethylene glycol, and the formed hydration layer is more stable; therefore, the prepared novel PVDF membrane is lasting in anti-pollution performance.
Owner:TIANJIN POLYTECHNIC UNIV

Deep neural network-based scattering medium penetrating target positioning and reconstruction method

The invention discloses a deep neural network-based scattering medium penetrating target positioning and reconstruction method, which is based on DINet and can be used for simultaneously predicting depth information and reconstructing a target image from a single speckle pattern. Image data of an experiment and a distance between an object and a scattering medium are collected by utilizing systemconfiguration; a speckle pattern statistical model system generated at different positions is configured to be used for collecting image data of an experiment and the distance between an object and ascattering medium; and the speckle pattern passes through the dual-channel network, generates a depth prediction value through the positioning channel network, and performs image restoration and reconstruction through the imaging channel network. According to the method, the multi-task challenge can be effectively solved, and multiple pieces of physical information can be obtained under the complex scattering condition. By utilizing a multi-task total loss function, the method has stronger constraint force on learning and training of the network, so that multi-task cooperative training has better performance in positioning tasks, and the positioning precision and the imaging quality are improved.
Owner:NANJING UNIV OF SCI & TECH

Small divergence angle ridge-type laser device and manufacturing method therefor

InactiveCN106911078AImprove impactDoes not limit output powerOptical wave guidanceDivergence angleWaveguide
The invention provides a small divergence angle ridge-type laser device and manufacturing method therefor. The laser device comprises an epitaxial structure and a ridge waveguide structure formed on the epitaxial structure, wherein the ridge waveguide structure comprises a parallel gain region and a light field mode expanding region that are orderly arranged along a light emitting direction, width of the light field mode expanding region gradually increases along the light emitting direction, a narrow end of the light field mode expanding region is connected with the parallel gain region, width of the narrow end of the light field mode expanding region equals width of the parallel gain region, the parallel gain region is 100 to 300 um in length, and the light field mode expanding region is 10 to 150 um in length. According to the small divergence angle ridge-type laser device and the manufacturing method therefor, no adjustment of the epitaxial structure is needed, no new epitaxial technology or technology process is needed, increase of a threshold current can be controlled in a restrained way, output power of a semiconductor laser device cannot be limited, output power can be improved by more than 10%, and main parameter performance during utilization can be improved to a certain extent.
Owner:WUHAN GUANGANLUN OPTOELECTRONICS TECH CO LTD

Composite rubber film used for complex shape surface multi-pas laser shock reinforcement

InactiveCN110105890AStrong anti-vaporization abilityStrong burst resistanceFilm/foil adhesivesEnergy absorbingPre treatment
The invention discloses a composite rubber film used for complex shape surface multi-pas laser shock reinforcement. The composite rubber film used for complex shape surface multi-pas laser shock reinforcement is composed of an energy absorbing layer and an energy restraint layer through connection; the energy absorbing layer and the energy restraint layer are arranged on a target material successively; the energy absorbing layer rubber film comprises two material layers, and is composed through connection of a black insulated rubber tape and a black double faced adhesive tape; the energy restraint layer is a transparent restraint layer, and is formed through blending of epoxy resin and a curing agent, and curing after adhesion onto the black double faced adhesive tape at half-cured state.A plurality of times of blast of a same point on the energy absorbing layer in a plurality of times of laser shock reinforcement is caused, and over gasification is avoided; a same point of the energyrestraint layer is capable of bearing a plurality of times of black without cracking; the composite rubber film is capable of bearing multi-pas laser shock reinforcement, reinforcement effect is improved, and laser shock reinforcement pre-treatment and post-treatment are simplified.
Owner:SOUTH CHINA UNIV OF TECH

A Combined Die for Making Carbon Fiber Reinforced Wrinkled Sandwich Cylindrical Shell

The invention provides a combined die for preparing a carbon-fiber-reinforced fold sandwich cylindrical shell. The combined die comprises a core forming die body, a panel forming die body and a solidification die body; the core forming die body comprises a male die and five female dies, the male die is one quarter of a round ring, the inner wall of the male die is provided with a plurality of equal quadrilateral units, five quadrilateral units are arranged in the axial direction of the male die, three quadrilateral units are arranged in the annular direction of the male die, the five female dies are arranged side by side, and the quadrilateral units on the female dies are in complete occlusion with the quadrilateral units on the male die; the panel forming die body comprises an inner die, a middle die and a base, and the middle die and the inner die are arranged in a concave arc in sequence from inside to outside; the solidification die body comprises an inner support and an outer support, the outer support is formed by buckling two same semi circular rings, and the radius of the outer support is the same as that of the concave arc; and the core forming die body, the panel forming die body and the solidification die body are arranged in sequence. The combined die is used for preparing the carbon-fiber-reinforced fold sandwich cylindrical shell.
Owner:HARBIN INST OF TECH
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