50results about How to "Increase the amount of formation" patented technology

The invention relates to a ractopamine molecular-imprinting piezoelectric sensor and a preparation method thereof. The technical scheme is mainly technically characterized in that ractopamine is adopted as a template molecule, o-amino phenylthioalcohol is adopted as a functional monomer, an electropolymerization technology is adopted for synthesizing a poly-o-amino phenylthioalcohol film with high recognition selectivity to ractopamine on the surface of a quartz-crystal gold electrode self-assembled with gold nano particles, so that ractopamine can be quantitatively detected. The ractopamine molecular-imprinting piezoelectric sensor and the preparation method thereof have the beneficial effects that the characteristics such as high specific surface area of the gold nano particles, high selectivity of the molecular-imprinting polymer and high sensitivity of a quartz-crystal microbalance are effectively combined, the cost is low, the synthesis process is simple and the reaction conditions are easily controlled; and the prepared piezoelectric sensor has the advantages of high sensitivity, good reproducibility and long service life and the like, and can be applicable to determination of the content of the ractopamine in a feed sample.

The invention discloses a high-strength alloy nodular cast iron coarse roller and a production process thereof. The high-strength alloy nodular cast iron coarse roller comprises the following chemicalcomponents of, in percentage by mass, 3.0-3.5 of C, 1.2-1.8 of Si, 0.7-1.0 of Mn, less than or equal to 0.03 of P, less than or equal to 0.015 of S, 1.2-2.2 of Ni, 0.3-0.8 of Mo, 0.1-0.5 of V, 0.2-1.0 of Cr, 0.045-0.075 of Mg, 0.01-0.016 of Re, and the balance Fe and unavoidable impurities. According to the coarse roller and the production process thereof, the forming quantities of different types of carbides in a material are increased through the reasonable addition of alloy elements such as Cr, Mo and V, so that the wear resistance of the material is improved; proper quantities of the elements are dissolved in a substrate, so that the strength of the material is improved; and the combined action of Mg and Re reduces the cutting action, on the substrate, by graphite, so that the strength and toughness of the material are further improved.

The invention relates to a high-temperature-application-based composite active middle layer diffusion bonding method for implementing interstitial carbide or nitride ceramic seamless connection, which aims to solve the problem that a single-layer active metal middle layer can not form a homogeneous miscible connector. The method comprises the following steps: 1. surface cleaning; 2. active metal layer presetting; and 3. vacuum diffusion bonding. When the Ti / Zr / Ti composite active metal is used as a middle layer to connect the ZrC ceramic, the connector structure only contains ZrC and TiC solid solutions under the connection conditions of 1400 DEG C / 1 hour / 20 MPa, and the shear strength of the connector is 240 MPa; and compared with the connector obtained from the single-layer active metal middle layer, the strength of the connector obtained by the method provided by the invention is enhanced by 26%. Compared with the traditional method, the strength of the connector is enhanced by nearly 2.5 times. The method is applicable to the field of braze welding.

The invention provides a multipurpose plant growth promoter. The multipurpose plant growth promoter is characterized by comprising the following components in parts by weight: 36-44 parts of purifiedwater; 4.5 to 5.5 parts of aspartic acid; 9 to 11 parts of threonine; 9 to 11 parts of glycine; 4.5 to 5.5 parts of arginine; 4.5 to 5.5 parts of boric acid; 4.5 to 5.5 parts of selenium; 1.8 to 2.2 parts of titanium citricate; 0.9 to 1.1 parts of ammonium molybdate; 13.5 to 16.5 parts of EDTA zinc; 2.7 to 3.3 parts of vitamin C; 4.5 to 5.5 parts of vitamin B12; 4.5 to 5.5 parts of polyglutamic acid; 4.5 to 5.5 parts of EDTA calcium; 1.8 to 2.2 parts of chitin; 2.7 to 3.3 parts of chitosan oligosaccharide; 2.7 to 3.3 parts of Tween 80 (auxiliary agent); 4.5 to 5.5 parts of EDTA iron; 1.8 to 2.2 parts of EDTA manganese and 9 to 11 parts of erythritol; the preparation method of the multipurpose plant growth promoter comprises the following steps: randomly putting 141 parts of the raw materials into a stirring reaction kettle according to the ratio, stirring for 20-30 minutes, and then filling and storing in vacuum. The multipurpose plant growth promoter provided by the invention has theadvantages of promoting fruit maturation, prolonging the fresh-keeping period and improving the yield and disease resistance of rice and wheat thereof.

The invention relates to an ultra-thin section steel structure weather-resistant fireproof paint, and a preparation method thereof. The ultra-thin section steel structure weather-resistant fireproof paint is composed of, by weight, 20 to 35 parts of modified acrylic resin, 10 to 18 parts of a nonsaturated polyester, 5 to 15 parts of alkyd resin, 10 to 20 parts of melamine phosphate, 4 to 10 partsof hydrated zinc borate, 5 to 10 parts of nanometer calcium carbonate, 3 to 7 parts of vermiculite, 25 to 40 parts of a solvent, 1 to 10 parts of modified barium metaborate, 1.5 to 3.6 parts of bentonite, 1 to 3 parts of a plasticizer, 0.5 to 3 parts of a levelling agent, and 1 to 5 parts of an ultraviolet ray absorber. The preparation process is simple; energy consumption is low; production costis low; the ultra-thin section steel structure weather-resistant fireproof paint possesses excellent flame resistance, weather resistance, bonding performance, sealing performance, is friendly to theenvironment, is wide in application range, and shedding is not easily caused.

The invention discloses a preservation method for a gerbera jamesonii genetic resource. The preservation method comprises the six steps of gerbera jamesonii receptacle explant pretreatment, inoculation induction culture, transfer induction culture, germplasm separation preservation, recovery culture, and seedling acclimating and hardening. By means of the preservation method for the gerbera jamesonii genetic resource, the separation preservation time of the gerbera jamesonii genetic resource is remarkably prolonged, the separation preservation efficiency is remarkably improved, the preservation time of the gerbera jamesonii genetic resource is greatly prolonged, the gerbera jamesonii genetic resource can be preserved for a long time, and application prospects are achieved.

The invention discloses a novel pear tree simplifying and pruning method. The novel pear tree simplifying and pruning method comprises the following steps: keeping flowers and fruits on strong and prosperous developmental branches, thinning weak branches below the trunk; removing fruits on branch group by fruits on strong and prosperous branches; slowly releasing the development branches and not cutting off the kept development branches. According to the simplifying and pruning method disclosed by the invention, the development branches with strong growth trend are used to occupy space, the fruits on the strong and prosperous developmental branches are kept on the main and side branches and the side lateral branches, the excessive weak branches are removed, so that the nutrients are relatively concentrated, the kept development branches are converted into string-flower branches through growth, ineffective branch quantity is reduced, the concentrated nutrients are supplied for the growth of the development branches, the quantity and the quality of the flower buds are improved, the unit fruiting capacity is strengthened, the high yield and the excellent quality are achieved; meanwhile, the novel pear tree simplifying and pruning method is simple and convenient in operation technology, saves much labor power and improves labor efficiency.

The invention discloses a cultivation method of Gerbera detoxified seedlings. The cultivation method includes steps of receptacle explant pretreatment of Gerbera, inoculation and induced culture, transfer induced culture, seedling domestication and seedling hardening. By using the cultivation method, interference caused by virus and disease factors during cultivation is avoided, forming number and efficiency of callus are increased, culture period is short, and seedling qualification rate is increased; the cultivation method has wide application prospect in the field of Gerbera tissue culture.

The invention relates to a preparation method of a multi-layer polyamide composite reverse osmosis membrane, which comprises the following steps of: adding polyvinyl alcohol or polyvinylpyrrolidone into a polysulfone membrane, performing pressure filtration on a dopamine solution on the polysulfone membrane in a press-in manner, and reacting the dopamine solution to form a polydopamine layer on the surface of the membrane and in membrane holes, thereby obtaining the multi-layer polyamide composite reverse osmosis membrane. Then the base membrane with the polydopamine layer is sequentially immersed into a low-concentration water phase solution and an oil phase solution, due to the fact that the concentration of the water phase solution and the concentration of the oil phase solution are low, part of amido carried by the polydopamine layer exists on the surface of the membrane after the base membrane is immersed in the water phase, the amido can react with subsequent oil phase acyl chloride to generate amido bonds, and an interpenetrating structure is formed; and the connection between the polyamide layer and the polysulfone-based membrane layer can be enlarged. And a polydopamine layer and a polyamide structure are formed in the pores of the porous base membrane, so that the retention rate of the membrane is increased while the membrane flux is increased. Glutaraldehyde cross-linked chitosan complex silver is used as a polyamide protective layer, the chitosan surface has a plurality of hydroxyl groups and amino groups, so that the attack of chlorine can be defended, the chlorine resistance of the membrane is improved, and the antibacterial property of the membrane is improved due to the antibacterial property of silver.

The invention discloses a preparation method of a metal layer of a closestool seat, the closestool seat, and a production method of the closestool seat. The preparation method of the metal layer of the closestool seat comprises the following steps: carrying out punching on a metal material till the shape of the closestool seat is formed, wherein the upper and lower surfaces are arc-shaped surfaces, a flow guide groove and groove openings are formed in the upper surface of the metal material, and a reinforcing rib is formed on the lower surface of the metal layer; the groove openings are used for mounting sitting detection sensors or temperature sensors; the side, with the flow guide groove, of the metal material is subjected to roughening treatment through the acid etching or laser etchingprocess, and thus micron-scale or nano-scale holes are formed. The metal layer is high in heat conduction speed, the surface of the metal layer has relatively high specific surface area, the metal layer is compactly connected with resin or other materials with the heat conduction and insulation functions, so that a sitting surface layer seldom falls, thus the service life is prolonged, and the safety is improved. The closestool seat is high in heat conduction speed and simple in production process, and the sitting surface layer has the excellent heat conduction and insulation capacities, andseldom falls; during use of a user, the contact feeling, with the sitting surface layer, of the skin is comfortable, and the safety performance is high.

The invention discloses a method for adding polytetrafluoroethylene to improve the uniformity of composite materials prepared by friction stir processing, which is realized through the following steps: taking a certain proportion of PTFE powder and M alloy powder, mixing and storing them evenly; drilling a blind hole in the middle of a base plate , fill the uniformly mixed powder into the prepared base plate and compact it; perform friction stir processing on the powder filled area on the base plate, under the action of friction heat generation of the stirring head and rotation of the stirring pin, PTFE promotes the M alloy powder Fully react with Al to form Al-M intermetallic compounds and evenly distribute on the matrix, and finally obtain a uniform intermetallic compound-reinforced metal matrix composite. The invention has the following advantages: the invention solves the agglomeration phenomenon in the in-situ composite material synthesis process of pure alloy powder friction stir processing, and the intermetallic compound reinforcement phase is evenly distributed in the matrix by adding PTFE.

The invention belongs to the technical field of ferrite materials, and particularly relates to a ferrite material with a high dielectric constant, the ferrite material is a single-phase material, partof iron ions in the ferrite are replaced by titanium ions, cerium ions and zinc ions, the titanium ions exist in the form of positively charged Ti<4+> ions, the cerium ions exist in the form of positively charged Ce<4+> ions, the zinc ions exist in the form of positively charged Zn<2+> ions, and iron ions in the ferrite coexist in the form of Fe<3+> and Fe<2+> ions. The ferrite material is prepared by a sol-gel method, a specific preparation process is designed, the formation amount of Fe<2+> / Fe<3+> defect dipoles is increased on the basis of high magnetic performance, ferrite with extremelylow modulation voltage and high dielectric adjustable characteristics is obtained, and tests show that the dielectric constant epsilon is greater than or equal to 25, the ferromagnetic resonance linewidth [delta]H is less than or equal to 6 kA / m, and the dielectric loss tg[delta][epsilon] is less than or equal to 0.0005. The ferrite material has the characteristics of low cost anddielectric constant, and can be used for solving the problems of miniaturization and the like of microwave devices.

The invention discloses a foam separator for preprocessing produced water. The foam separator comprises an aeration pump, a separation barrel with the bottom being connected with the aeration pump, a communication pipe which is connected with the bottom of the separation barrel and a water outlet pump which is communicated with the communication pipe; more than two baffle plates are arranged in the separation barrel, and a conical foam concentrator for converging the foams is arranged on the top end inside the separation barrel; one side of the bottom end of the separation barrel is provided with a water inlet valve which is connected with the aeration pump, the other side of the bottom end of the separation barrel is provided with a water outlet valve which is connected with the communication pipe, and one side of the upper end of the separation barrel is provided with a foam liquid outlet; the separation barrel is also provided with a liquid level meter. By adopting the foam separator, the traditional Venturi jet pump is canceled, so that the stability and reliability of the device are improved; in addition, the baffle plates are arranged in the separation barrel, so that the stability of the foams is improved, the water content of the foams is reduced, and the separation efficiency is higher.

The invention discloses a method for adding rare earth oxides to improve the uniformity of composite materials prepared by friction stir processing. Fill the uniformly mixed powder into the prepared base pure aluminum plate and compact it; perform friction stir processing on the filled powder area on the base pure aluminum plate, under the action of shoulder friction heat generation and stirring needle rotation, REO promotes M alloy The powder fully reacts with Al to form Al-M intermetallic compounds and evenly distributes on the matrix, and finally obtains uniform intermetallic compound reinforced metal matrix composites. The invention has the following advantages: it solves the agglomeration phenomenon in the process of in-situ synthesis of composite materials during friction stirring processing of pure alloy powder, and the intermetallic compound reinforcement phase is evenly distributed in the matrix by adding REO.

The invention discloses cross-shape profiled-section polyester fiber multilayer quick-filtering nonwoven, prepared by: 1) adding 0.5 part of liquid ammonia and 59.5 parts of water into 40 parts of acrylic resin, and mixing well to obtain resin solution; 2) using cross-section polyester of 2D*51 mm as a raw material to discharge a cotton mesh; 3) using a cotton spreading machine to make the cottonmesh into a multilayer nonwoven cotton mesh having six layers of fiber; 4) introducing air bubbles into the resin solution; 5) mixing well the multilayer nonwoven cotton mesh and the bubbled resin solution; 6) drying. The problem is solved that profiled-section fiber has insufficient strength; the multi-groove cross-section fiber is made into filtering nonwoven of multilayer structure; filtering efficiency is effectively improved, and consumption of cross-flow filtering nonwoven is reduced; the advantage of deep filtering is also provided.

The invention relates to a desulfurization industrial waste water treatment method. Desulfurization industrial waste water treatment equipment is adopted in the treatment method. The equipment comprises a neutralizing tank, a precipitating-flocculating chamber, a mud discharging chamber, a plate-and-frame filter press, a sewage treatment chamber and a water storage tank. Through arrangement of thecomponents and the combination of a medicinal method with specific equipment, chemical treatment is combined with physical treatment, the waste water treatment efficiency is increased, and meanwhilethe general applicability of the method is enhanced.