53results about How to "Strong "Affinity"" patented technology

An NOx emission system for diesel powered vehicles has a “Y” exhaust system with an NOx adsorber catalyst in each leg and an oxidation catalyst in the combined leg. One bank of cylinders sends exhaust gases to one of the “Y” legs while a second bank of cylinders send exhaust gases to the other “Y” leg. Composition of the exhaust gases in each leg is independently controlled by the engine's ECU so that exhaust gases in one leg are rich for regenerating the NOx adsorber catalyst in that leg while exhaust gas composition in the other leg is lean so that the combined gas stream is always lean and reductant slip is oxidized in the oxidation catalyst.

The invention relates to a waterproof non-woven heat-preservation material making method and a waterproof non-woven heat-preservation material produced by the method. The waterproof non-woven heat-preservation material making method is as follows: a fiber net is formed from a main-body fiber and an optional low melting point fiber by a nonwoven technology, a waterproof agent is sprayed on one or two surfaces of the fiber net in a ratio of 0.5-20 grams per square meter, and then the fiber net is heated at the temperature of 110-200 DEG C for 2-10 minutes. The waterproof non-woven heat-preservation material making method can fast and safely prepare the waterproof non-woven heat-preservation material in low cost, and the produced waterproof non-woven heat-preservation material has good water repellency, and has excellent heat preservation effect both in dry and wet conditions.

The invention provides a composite metal oxide adsorbent for fluoride removal and the preparation method thereof. Said composite metal oxide adsorbent for fluoride removal comprises: 0.05-0.15 molar parts of transition metal, 0.2-0.6 molar parts of Al and / or Mg, and 0.05-0.15 molar parts of rare earth metal. The composite metal oxide adsorbent for fluoride removal has a saturation adsorption capacity on fluorine in water of up to 229 mg / g, under a neutral condition.

The invention discloses a stretchable adhesive conductive structure color hydrogel film and a preparation method thereof. The method is based on a photonic crystal positive structure template, an inverse opal structure hydrogel film is prepared through a template sacrifice method, gaps of the inverse opal structure hydrogel film are filled with an adhesive conductive hydrogel precursor solution, the adhesive conductive structure color hydrogel film is obtained after curing, and the method is easy to operate, low in cost, capable of being repeatedly used, convenient to use and reliable. The conductive structure color hydrogel film prepared by the method has good conductivity, has firm adhesion and affinity to skin and has the characteristic of dual-signal response to mechanical movement andcan be used as a dual-signal sensor for human body activities and feeds back structural color sensing and electric signal sensing in real time according to the change of the human body activities.

The invention discloses an organic silicon modified styrene-acrylate microemulsion reinforcing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly adding acrylic acid, hydroxyl-containing vinyl monomer, acrylate, styrene and organic silicon functional monomer into a reactor; adding a water-soluble initiator into the reactor for polymerisation; then cooling to room temperature and adding alkali for neutralizing; finally, slowly adding water into the reactor while stirring at a high speed to disperse so as to obtain the organic silicon modified styrene-acrylate microemulsion reinforcing agent. The organic silicon modified styrene-acrylate microemulsion reinforcing agent disclosed by the invention has the advantages of high binding force with paper fibers, good film forming performance and good water resistance and is applied to paper coating. Compared with the common styrene-acrylate emulsion, the organic silicon modified styrene-acrylate microemulsion reinforcing agent disclosed by the invention has the following advantages: the surface strength, folding endurance and wet-and-dry strength of the paper can be obviously improved, no organic solvent or surfactant is added in the preparation process, and the organic silicon modified styrene-acrylate microemulsion reinforcing agent is a high-performance environment-friendly paper-making and printing surface coating reinforcement product.

The invention discloses a mume flower grafting rapid-breeding method through big apricot tree as stock, which comprises the following steps: disposing big apricot tree, selecting to scion at 4.5-5.5cm, cutting at 3cm position into 'horse ear shape' oblique plane, grafting at 16-28 deg.c in each April, picking core of mume flower.

The invention provides an inferior litchi tree top grafting method which comprises the following steps of scion and seedling tree stock selecting, stock grafting pre-managing, grafting, grafting method and grafting post-managing. A seedling litchi tree has an arbor root and has a developed root, and the survival rate of grafting is guaranteed. The seedling litchi tree and a superior litchi tree belong to the same family, a scion and a stock are strong in compatibility, the successful rate of grafting is greatly improved, and the growing speed of grafting seedlings after grafting is accelerated; the litchi tree has a strong drought and low temperature resistant ability, the survival rate of grafting can be guaranteed under a dry and low temperature condition, so that the litchi tree after grafting can blossom and yield fruits within a year and has the abilities of passing the winter in an open field and blossoming and yielding the fruits just in one year. The inferior litchi tree grafting method is simple, convenient and high in survival rate, the coverage of high quality litchi trees is improved, and the inferior litchi tree can be changed into the superior litchi tree.

The invention discloses a method for detecting a new coronavirus SARS-CoV-2 N protein by adopting a nucleic acid aptamer. The aptamer is N Aptamer 1, N Aptamer 2 or N Aptamer 3, can be specifically combined with SARS-CoV-2 virus N protein, and can also be used for specifically detecting N protein diluted in human serum and N protein in a protein electrophoresis sample. By means of the mode, nucleic acid extraction or antibody detection is not needed, meanwhile, the method has the advantages of being high in affinity with target molecules, high in specificity, easy to prepare, low in immunogenicity and toxicity, stable in chemical structure and the like, and conditions are created for early detection of 2019 SARS-CoV-2 pathogens.

The green reinforcing polymer material includes one component A and one component B. The component A consists of hydroxyl-terminated prepolymer of polyester or polyether type polyurethane 20-60 weight portions, hydroxyl-terminated polyester or polyether type polyol 5-20 weight portions, vegetable oil 5-20 weight portions, plasticizer 0-10 weight portions, stuffing 30-60 weight portions, catalyst 0.01-1 weight portion, and antioxidant 0.01-0.5 weight portion; and the component B is isocyanate as cross-linking agent in 10-20 weight portions. The present invention is used as reinforcing agent or concrete repairing agent, and has the advantages of no toxicity, no volatile organic solvent, high strength, high weather resistance, etc.

The present invention relates to whisker reinforced resin-base composite friction material and its preparation process. The whisker reinforced resin-base composite friction material is prepared with calcium carbonate whisker in 5-30 weight portions and polyether ether ketone in 70-95 weight portions; and the preparation process includes the following steps: drying calcium carbonate whisker and polyether ether ketone at 130-150 deg.c for 3-5 hr, mixing through high speed stirring in a stirrer for 8-10 min, melting the mixture in a hot die at 380-390 deg.c, pressurizing at 20 MPa to form, maintaining for 8-10 min, cooling inside the die to 100 deg.c, demolding, cooling to room temperature, and maintaining at 250 deg.c of 1 hr to obtain the product. The calcium carbonate whisker reinforced polyether ether ketone composite friction material has low friction coefficient, low wear rate, high bearing capacity, low cost and other advantages.

A method and apparatus for removing contaminants from an oily bilgewater. In the method the bilgewater is passed through a fluid-pervious filtration media which has been infused with an absorbtion composition comprising a homogeneous thermal reaction product of an oil component selected from the group consisting of glycerides, fatty acids, alkenes, and alkynes, and a methacrylate or acrylate polymer component. The contaminants are thereby immobilized at said media, and the purified bilgewater having passed through the filtration media is discharged, e.g. into a body of navigable water.

The invention discloses a fruit tree sterilization coating agent prepared from swill-cooked dirty oil and a preparation method of the coating agent. The coating agent specifically comprises the following components: 1-5% of active matters, 0.1-1% of salicylic acid, 0.05-0.1% of a growth regulating agent, 1-10% of a surfactant, 1-5% of an organic solvent, 0.1-1% of a stabilizing agent, 0.1-10% of biochemical fulvic acid, 0.1-1% of warning colouration and the balance of swill-cooked dirty oil. A composition, that is, the coating agent disclosed by the invention, is stable in property, is a coating agent for fruit tree rot, can prevent and treat bacterial or fungoid diseases such as fruit tree rot and canker and can eliminate fruit tree rot scab within a short period, new bark can grow, and the lasting period can be six months. A specific application method comprises the steps of directly coating the composition disclosed by the invention onto scab on trucks of fruit trees, or the composition can be diluted by swill-cooked dirty oil or other plant oil and is subsequently directly coated on the scab of fruit trees without scraping the scab with cutters, and meanwhile resource utilization of the swill-cooked dirty oil is achieved.

The invention provides a method for grafting chrysanthemum to Artemisia abaensis. The method comprises the following steps of selecting a scion and a stock; making grafting preparation; grafting; and performing management after grafting. The chrysanthemum is a famous ornamental flower and is one of four most famous flowers in China. But the chrysanthemum has defects of easy high growing speed and easy lodging. The ornamental value of the chrysanthemum is limited to a certain extent. The problems can be basically settled by means of Asteraceae Artemisia grafting technology. The Artemisia abaensis is an Asteraceae Artemisia plant and has advantages of straight and vertical main stem and multiple branches. The Artemisia abaensis is a perennial herb and has a developed root system. Through grafting chrysanthemum to the Artemisia abaensis, high survival rate of grafted seedlings can be ensured, and furthermore defects of easy high growing speed and easy lodging can be approximately settled. Furthermore the ornamental value of the chrysanthemum is greatly improved.

The invention relates to the technical field of cosmetic preparation, and discloses activating cream, prepared from the following raw materials in parts by weight: water, an orchidaceae plant extract,glycerin, squalane, cetearyl alcohol, polyglycerol-6 distearate, jojoba ester, polyglycerol-3 beeswax acid ester, butanediol, a centella asiatica extract, a polygonum cuspidatum root extract, a radixcutellariae extract, a tea extract, a glycyrrhiza glabra root extract, a matricaria recutita flower extract, a rosemary leaf extract, polyglycerol-10, saccharomycopsis fermentation product filtrate,an algae extract, a pomegranate peel extract, polydimethylsiloxane, avocado fruit fat and the like. According to the activating cream and a preparation process thereof, by adding the orchidaceae plantextract and squalane and adding the other natural plant extracts, the prepared cream has various effects, can promote the metabolism of skin cells, maintains moisture and elasticity of skin, and improve the competitiveness of the cream.

The invention relates to a polyamine-loaded opening material and a preparation method and application thereof. The opening material comprises an opening polymeric sponge and modified polydopamine loaded on the opening polymeric sponge, and the modified polydopamine is polyethylenimine modified polydopamine; during preparation, the polydopamine is loaded on the opening polymeric sponge, and then ismodified; and during application, the opening material is modified by carbon disulfide, amino in polyethylenimine is transformed into an aminodithioformic acid group which is used for adsorbing heavymetal ions in water, or precious metal nano-particles are loaded on the opening material, and is used for catalyzing chemical reaction. Compared with the prior art, the preparation method has the advantages that the polydopamine modified opening material is treated by the polyethylenimine, a polyamine functional platform can be introduced, furthermore, the opening material can be crosslinked withthe polydopamine, mechanical stability of the opening material is improved, and application is extensive.

The invention discloses a preparation method of a mouth mask chip for preventing PM2.5 and ozone. The method comprises the following steps: 1, nanometer silica and nanometer titanium dioxide are uniformly mixed, glycerin or polyethylene glycol is added in a dropwise dropping mode, the three materials are fully melted and placed in purified water, the mixture is stirred and suspended for standby; 2, sodium polyacrylate and guar gum are uniformly mixed, the materials are poured into the mixture in the step 1, and materials are fully dissolved for standby; 3, betaine and urea are taken and uniformly mixed, the materials are placed in 25-35 parts of purified water at 55-65 DEG C, and uniform stirring is carried out for standby; 4, the mixture in the step 2 and the mixture in the step 3 are mixed again with uniform stirring, homogenizing is carried out in order to prepare aqueous composite non-setting adhesive; 5, carbon fiber is used as a carrier, and the aqueous composite non-setting adhesive is smeared on carbon fiber. The method has the advantages of simple manufacture, standard technology, usage convenience, and easy promotion, and the method can be widely applied to the fields ofenvironmental protection, medicine, new materials, and the like.

A separator for an energy store. The separator may be used in a lithium-sulfur battery in particular. To achieve improved cycle stability, the separator has at least one first layer and at least one second layer, the at least one first layer containing a material having an affine property with respect to at least one active electrode material, and the at least one second layer containing a material having a repellent property with respect to at least one active electrode material. The at least one first layer and the at least one second layer may be situated directly adjacent to one another. Also described is an energy store including the separator.

The invention relates to a clenbuterol aptamer and an electrochemical biosensor of the aptamer for detecting clenbuterol, and a preparation method and a detection method of the sensor. The clenbuterol aptamer disclosed by the invention is a single-stranded deoxyribonucleic acid (DNA) probe, which contains a sequence GGATATTGG, and the length is 13-18 basic groups; and 3'-NH2-(CH2)7- is modified at the 3'terminal. By adopting the sensor, the sensitivity for detecting the clenbuterol is improved, 1.0pg / mL of clenbuterol can be detected to the lowest extent, the detection cost of the clenbuterol is greatly lowered, the operation is simple and convenient, and quick detection of the clenbuterol can be achieved.

The invention discloses a chemiluminescent microarray chip capable of simultaneously detecting several kinds of cardiac markers and a kit. A matrix array group that is formed by fixing capture antibodies of detection target objects on a chip carrier is formed in a reaction region of the chemiluminescent microarray chip; and the detection target objects are several kinds of cardiac markers. Besides, the kit includes the chemiluminescent microarray chip, a second antibody solution labeled with horseradish peroxidase or alkaline phosphatase, a chemiluminescent substrate sensitive to markers, anda standard detection target object solution. With the biochip or kit detecting the several kinds of cardiac markers simultaneously, the blank of the simultaneous quantitative detection technology of the cardiac markers at the existing stage can be filled; and the requirement of detecting the cardiac markers simultaneously and rapidly in case of emergency is met. The chemiluminescent microarray chip and the kit have characteristics of multiple targets, low cost, high automation degree, high sensitivity, short detection time and great easies in operation and the like.

The invention provides a high-temperature-resistant self-adhesive waterproof coiled material and a preparation method thereof, which relate to the field of building materials. It includes the following steps: uniformly mix butyl rubber and carbon black and heat it, and obtain a coarse rubber mixture after cooling; uniformly mix the crude rubber mixture and nitrile rubber, heat it, and assist it with ultrasonic waves, and after stirring, obtain a refined mixture Rubber mixing: Blend the refined rubber with light calcium carbonate, paraffin, stearic acid, filler oil, anti-ultraviolet agent, and antioxidant, put it into the extruder after blending, and the extruded product is calendered and drawn , After winding and forming, the base layer of the waterproof membrane is obtained; the refined rubber, rubber accelerator, paraffin, polyisobutylene, and talcum powder are blended to obtain the self-adhesive paste; the obtained self-adhesive paste is mixed with The base layer of the waterproof membrane is compounded, and an anti-adhesive film is set on the self-adhesive layer formed by the self-adhesive paste to obtain a high-temperature-resistant self-adhesive waterproof membrane. The invention can effectively prevent the self-adhesive layer from being detached from objects, and the self-adhesive layer and the base layer of the waterproof coiled material have strong affinity and are not easy to detach.

The invention relates to the technical field of biology, in particular to a kit for measuring concentration of free light chains Lambda and a preparation method. According to the technical scheme, thekit for measuring the concentration of the free light chains Lambda is characterized by containing a reagent R1 and a reagent R2, wherein biotin and streptavidin are added to the reagent R2, biotin binds with free light chain Lambda antibodies in a ratio of biotin to the free light chain Lambda antibodies being 2:1, and streptavidin binds with biotin-goat anti-human free light chain Lambda antibodies in a ratio of streptavidin to the biotin-goat anti-human free light chain Lambda antibodies being 1:1. The kit for measuring the concentration of the free light chains Lambda has the advantages as follows: a cascade amplification reaction is adopted, that is, the goat anti-human free light chain Lambda antibodies are linked with biotin in a ratio of the goat anti-human free light chain Lambdaantibodies to biotin being 1:2 and then subjected to a mixed reaction with streptavidin in a ratio of the biotin-goat anti-human free light chain Lambda antibodies to streptavidin being 1:1, repeatability and sensitivity can be obviously improved, and the linear range can reach 4-140 mg / L.

The invention relates to nickel-based composite powder for plasma spraying. The nickel-based composite powder is prepared from the following raw materials in parts by weight: 70-80 parts of nickel-based alloy powder, 1-2 parts of cerium dioxide powder, 2-5 parts of aluminum oxide powder and 5-10 parts of silicon carbide powder. The powder is treated by radio frequency induction plasma spheroidizing equipment and then is mechanically and uniformly mixed to obtain the nearly spherical nickel-based composite powder. The invention further discloses a method for manufacturing a cladding coating ofa hydraulic prop piston rod by plasma spraying. Through treatment of the radio frequency induction plasma spheroidizing equipment and optimization of plasma spraying process parameters, the bonding strength and hardness are high, the wear resistance and corrosion resistance are good, and the cracking sensitivity of the cladding coating is reduced; and the service life of the hydraulic prop pistonrod is prolonged. Meanwhile, the method can also be applied to protection of other parts.

The invention discloses a nucleic acid aptamer-quantum dot biosensor for detecting and killing salmonella and a preparation method and application thereof, and belongs to the technical field of detection and inactivation of food pathogenic bacteria. The biosensor disclosed by the invention is prepared by connecting a salmonella aptamer Aptamer C marked by quantum dots to the surfaces of Fe3O4 nanoparticles deposited with a polydopamine (PDA) coating; pairing a complementary chain Strand A modified with fluorescein with the Aptamer C, and pairing a complementary chain Strand A modified with fluorescein with the Aptamer C; using the Fe3O4 nano particles connected with the Aptamer C and the Srand A for detecting the salmonella. The detection sensitivity of the biosensor is 10 CFU / 100 g, the detection range is 10-10< 4 > CFU / 100 g, and the biosensor has good sensitivity and specificity; the sterilization degree reaches 95% or above, and the effect is remarkable.

The invention discloses a medium-frequency induction furnace which comprises a furnace shell, a furnace bottom and a furnace lining. The furnace bottom and the furnace lining are arranged inside the furnace shell. An induction ring is arranged on the outer wall of the furnace lining. A magnet yoke is arranged on the top of the induction ring. The furnace lining is made of aluminum-magnesium spinel materials. An air brick and a bottom leaky pipe are arranged at the bottom end of the furnace lining. A sealing ring is arranged at the upper end of the furnace lining. The sealing ring is composed of a heat insulation ring, a water-cooling ring and a metal sealing ring. The water-cooling ring and the metal sealing ring are both arranged inside the heat insulation ring. The water-cooling ring is located at the upper portion of the metal sealing ring. The heat insulation ring is made of electric fused white corundum materials. A vacuum cover is arranged at the upper portion of the sealing ring. The vacuum cover is connected with a vacuum pump. According to the medium-frequency induction furnace, vacuumization can be achieved, bottom argon blowing and stirring can also be achieved, the inner wall of the circumference of the upper portion of the furnace lining can be sealed through the sealing ring arranged at the upper portion of the furnace lining, the sealing performance of the medium-frequency induction furnace is enhanced, and therefore during the vacuumization, the vacuum degree can reach about 30KPa.

The invention discloses a rubber affinity-type aqueous polyurethane adhesive, and a preparation method thereof. According to the rubber affinity-type aqueous polyurethane adhesive, N-Br bonds in an alkanol-bromoisocyanuric acid structure of the rubber affinity-type aqueous polyurethane adhesive can be broke easily through heating, and stable imide negative ion structures and bromine positive ionsare formed; bromine positive ions are reacted with water to form hypobromous acid with excellent oxidation capacity, hypobromous acid and unsaturated bonds in rubber are subjected to addition reaction, so that rubber polarity is increased, and excellent affinity of rubber with an aqueous polyurethane dispersion system is achieved. Because of introduction of alkanol groups, the large e bond electron cloud density of alkanol-bromoisocyanuric acid is increased, the stability of imide negative ions is reduced, the activity of N-Br bonds at normal temperature is reduced, and system stability is ensured. No additive is needed by the rubber affinity-type aqueous polyurethane adhesive; the bonding strength on rubber is high; stability is high; the rubber affinity-type aqueous polyurethane adhesiveis capable of reducing shoe production technology steps, and shortening production period.

The invention discloses a method for increasing a grafting propagation survival rate of pinus bungeana variations. The method includes: grafting a scion to a rootstock according to a high-position inarching method to complete grafting and obtain a grafted plant, wherein the scion refers to a pinus bungeana variation or pinus bungeana, the pinus bungeana variation refers to Penxian pinus bungeana, and the rootstock refers to pinus tabuliformis or pinus bungeana. A process of grafting the scion to the rootstock according to the high-position inarching method includes: cutting the scion to obtain the scion with a cut, and cutting the rootstock at a position 2-5cm below a terminal bud of an upper branch or a main branch of the rootstock to obtain the rootstock with a cut; jointing the scion with the cut and the rootstock with the cut to finish grafting. The survival rate of pinus bungeana grafted according to the method is about 90% generally, and high affinity and quickness in growth are realized. In addition, the method can be applied to breeding of new pinus bungeana varieties, establishment of pinus bungeana genetic resource clone collection nurseries and breeding of pinus bungeana clones in production.

The invention discloses a modified activated carbon for removing sulfate radicals in water and a preparation method thereof. Characteristics of porous structure, large specific surface area and the like of activated carbon are utilized, and zirconia is loaded on inner surfaces and outer surfaces of activated carbon pores, so that adsorption effect of activated carbon to the sulfate is greatly improved, problems of high price, fine particles and serious zirconium loss of pure zirconia are also avoided. The prepared activated carbon has excellent stability and durability in water, high adsorption capacity for sulfate ions in water and high adsorption rate, can effectively remove SO42 ions in water, reduces harm to the environment and a human body, can be used for actual production and application, and has higher application and promotion in relevant fields of water treatment.

The invention discloses a preparation method of a modified organic montmorillonite / nylon 6 composite material. It utilizes carboxyl group-containing organic montmorillonite to react with amino group-containing cage silsesquioxane to improve the interaction between modified organic montmorillonite and nylon 6, thereby compounding with nylon 6 to prepare a high-performance composite material. The preparation process is to first react carboxyl-containing organically modified montmorillonite with thionyl chloride to activate the carboxyl group, and then react it with aminopropyl cage silsesquioxane (POSS) to generate POSS-modified organic montmorillonite Soil, and then melt-extrude it with nylon 6 to prepare montmorillonite / nylon 6 composites. The composite material obtained in the preparation method of the invention has excellent properties, easy-to-obtain raw materials, simple modification method, and is suitable for large-scale production.

The invention discloses a method for preparing a zeranol monoclonal antibody based on the cross reactivity of a structural analogue. The method comprises the steps of firstly preparing an artificial antigen ZAN-O-BSA by using a structural analogue ZAN of ZAL, immunizing animals by using the artificial antigen ZAN-O-BSA to generate antiserum; and by adopting the ZAL as a detection target object, screening out a hybridoma cell capable of secretion of an anti-ZAL monoclonal antibody by blocking ELISA screening and preparing the ZAL monoclonal antibody. Practice proves that the monoclonal antibody prepared through the method is high in sensitivity and high in affinity, IC50 is 577pg / mL, immunological detection methods, such as zeranol enzyme-linked immunosorbent assay, chemiluminiscence, time resolution and fluorescence polarization can be built by using the monoclonal antibody prepared through the method, and fast detection products, such as a zeranol colloidal gold test strip and a Raman-enhanced colloidal gold test strip, can be prepared.