42 results about "INDUCTION TREATMENT" patented technology

The invention discloses a plasma-enhanced nonlinear conductive coating and a preparation method and application thereof. The preparation method comprises the following steps: coating the surface of an insulating substrate with a composite coating, carrying out induction treatment under the action of an electric field, and curing to obtain the coating, the composite coating comprises a nonlinear conductive material and a coating matrix, wherein the nonlinear conductive material and / or the insulating base material are / is subjected to plasma treatment. According to the method, the nonlinear conductive material can have good nonlinear conductive characteristics under low doping amount through plasma treatment, and meanwhile, three combination effects of mechanical interlocking, physical adsorption and chemical bonding can be introduced on the surfaces of the coating and the insulating base material at the same time through the impact effect of plasma high-energy particles; and the adhesive force of the coating on the surface of the insulating base material is strengthened. The coating obtained by the invention can show remarkable nonlinear conductivity under the condition of low filler doping amount, and compared with a coating in the prior art, the coating has better surface charge regulation and control effect, higher surface flashover voltage and stronger basic adhesive force.

The invention discloses oyster-soybean compound protein gel constructed based on low-temperature synergy as well as a preparation method and application of the oyster-soybean compound protein gel, and belongs to the technical field of functional foods. The composite gel is formed by oyster protein and soybean protein isolate through low-temperature stabilization, medium-temperature construction and thermal induction treatment. The preparation method comprises the following steps: preparing an oyster protein suspension; preparing a soybean protein isolate suspension; the oyster protein suspension and the soybean protein isolate suspension are mixed, stirred and left to stand, a gel structure is preliminarily constructed and then subjected to thermal induction curing treatment, and after the thermal induction curing treatment is finished, the oyster-soybean compound protein gel is formed through storage at low temperature and can be used in the field of food processing. The oyster protein and the soybean protein isolate are combined, so that the composite gel has excellent gel strength, smooth texture and long-acting storage stability, no organic chemical reagent or food additive is used in the preparation process, the formula safety is ensured, the process is simple and convenient, and the composite gel shows huge application value and industrialization prospect.

The invention discloses a graphene-containing polyurethane composite material with a light-heat-electricity-heat conversion and hydrophobic surface structure as well as a preparation method and application of the graphene-containing polyurethane composite material. The composite material sequentially comprises a pure polyurethane layer, a graphene-polyurethane composite material layer and a hydrophobic surface with a rough micro-nano structure from bottom to top. The bottom of the composite material is a pure polyurethane layer, so that efficient heat collection, temperature rise and heat slow release can be realized. According to the preparation method disclosed by the invention, the graphene is directionally arranged in the process of printing the molten graphene-polyurethane composite material layer by utilizing an FDM 3D printing process, so that the obtained composite material layer has a high anisotropic heat conductivity ratio. According to the method, the surface of the composite material is subjected to laser induction treatment by using high-energy beam irradiation, so that hydrophobic chemical components and chemical bonds on the surface of the material are increased, and a rough micro-nano porous structure generated on the surface of the material under the action of laser is combined, so that the composite material has a hydrophobic characteristic and has extremely high application potential in the field of all-weather deicing / anti-icing application.

The invention provides a method for removing organic matters through crystallization adsorption, and relates to the technical field of aluminum oxide. The method comprises the following steps: S1, taking a secondary overflow liquid obtained by secondary decomposition as a mother liquid, and adding a seed crystal into the mother liquid to obtain a mixed liquid; s2, carrying out solid-liquid separation on the mixed liquid in the step S1 to obtain seed crystals and filtrate; s3, grinding and activating the seed crystal in the step S2; s4, feeding the ground seed crystal into an induction tank for induction treatment; s5, circulating the fine seed crystal obtained in the step S4 into the mixing section of the induction tank in the step S4; and S6, conveying the filtrate obtained in the step S2 to a causticizing tank for causticizing reaction. According to the method, the aluminum hydroxide seed crystal is ground, the specific surface area and activity of the seed crystal are increased, the seed crystal and the sodium aluminate mother liquor are mixed and react to accelerate the crystallization precipitation speed of oxalate, and then the fine seed crystal is separated and washed for cyclic utilization, so that the expenses of water, electricity, steam and the like and related investments are saved.

The invention belongs to the technical field of high polymer materials, and particularly discloses a polyvinylidene fluoride (PVDF) microporous filter membrane and a preparation method thereof. The PVDF microfiltration membrane comprises the following components: PVDF and has a spherical bouquet-shaped membrane structure; a two-step vapor induced phase separation (VIPS) method is adopted to induce film formation, and the two-step VIPS method comprises low-temperature and low-humidity induction and high-temperature and high-humidity induction treatment. According to the preparation method disclosed by the invention, the membrane forming process is controlled by controlling the formula of the membrane casting solution, adopting a two-step VIPS method to induce membrane forming and controlling key process conditions such as temperature, relative humidity and time in the membrane forming process, so that the PVDF microporous filter membrane with a special spherical bouquet-shaped membrane structure and relatively high flux is prepared; meanwhile, the membrane is simple in preparation process and easy to industrialize.

The invention provides a laser-induced surface metallized glass fiber reinforced polyether-ether-ketone modified material and a preparation method thereof. The laser-induced surface metallized glass fiber reinforced polyether-ether-ketone modified material is prepared from the following components in percentage by weight: 39%-69.5% of PEEK resin, 20%-40% of low-dielectric flat glass fiber, 5%-10% of low-dielectric filler, 5%-10% of Cu-Ni coordination compound and 0.5%-1% of antioxidant. According to the invention, the Cu-Ni coordination compound is added into the PEEK modified material, then the PEEK modified material is subjected to laser induction treatment with a specific wave band, reducing cuprous ions or nickel ions are obtained on the surface layer of the PEEK modified material, and then the reducing cuprous ions or nickel ions are catalytically reduced into metal atoms through an electroplating process, so that the metal layer is embedded into the PEEK base material, and the binding force between the metal coating and the PEEK base material is improved.

The invention provides organic silicon leather with a Janus structure and a preparation method of the organic silicon leather. The preparation method comprises the following steps: S1, mixing diphenylmethane diisocyanate, polytetrahydrofuran ether glycol and dibutyltin for a first reaction, then adding 4-DOPO-(((3-hydroxypropyl) imino) methyl) phenol into a reaction system for a second reaction, and finally adding 3-perfluorohexyl-2-hydroxypropyl acrylate for terminating, so as to obtain a prepolymer; the polyurethane macromolecules containing fluorine and double bonds at the end are obtained; and S2, coating the surface of base cloth with the polyurethane macromolecule containing fluorine and double bonds at the end to form a bottom coating, then coating the surface of the bottom coating with hydrogen-containing silicone oil, vinyl silicone oil and a platinum catalyst, and carrying out hydrosilylation reaction through thermal induction treatment to form the organic silicon leather. According to the method, the hydrosilylation reaction is triggered through thermal induction, and the PU-PSi composite coating with the Janus structure is formed in situ. According to the method, no organic solvent is needed, the process is environment-friendly, and the obtained organic silicon leather has high bonding strength and excellent wear resistance, flame retardance and hydrophobicity.

The invention discloses a whole-plant high-toughness plastic material as well as a preparation method and application thereof. Paper or a natural cellulose biomass material is used as a raw material, and a whole plant-based material with excellent strength and toughness is obtained through special process induction treatment. The high-plasticity material composed of the natural plant materials breaks through the bottleneck problem of processing of the natural materials, and is expected to adopt low-cost processing modes such as stamping and forging, so that the processing cost of the natural materials is greatly reduced, the application field of the natural materials is expanded, and a low-cost material is provided for sustainable development. Meanwhile, instruments needed for preparation are simple, large-scale production can be achieved, and good social and economic value is achieved.

The invention provides a method for inhibiting post-acidification of fermented food and retaining active probiotics. Comprising the following steps: fermenting food raw materials to obtain a fermented product; and carrying out induction treatment on the fermented product, so that the probiotics in the fermented product enter a viable and non-culturable state. The method can effectively inhibit post-acidification of the fermented food, prolong the shelf life of the fermented food, reserve the activity of probiotics in the fermented food, maintain or improve the nutritional value of the fermented food and improve the quality of the fermented food, and is wide in application prospect.

A condensate water induction processing mechanism of an electroplating bath comprises a condensate water induction processing mechanism body arranged on a bath body, the condensate water induction processing mechanism body comprises a first sectional material and a second sectional material, the first sectional material is embedded and fixed to the periphery of a notch, the second sectional material is arranged below the outer bottom of the bath body, and the condensate water induction processing mechanism body comprises a first V-shaped reinforcing rib, a second inverted-V-shaped reinforcing rib, an electrode bar and a tray. Small holes are formed in the bottoms of the first reinforcing ribs, the electrode bars are fixedly connected to the peripheries of the small holes in a sleeved mode, and a tray is further arranged below the tank body. Heating films are arranged in the first sectional material and the second sectional material, the electrode bar is arranged at the bottom of the first reinforcing rib, and a controller is further arranged on the groove body. According to the invention, the subsequent electroplating quality is improved while the structural reinforcement and heating of the tank body are realized, the condensate water is subjected to induction treatment, the accumulation of the condensate water is reduced, the electroplating influence on the condensate water is reduced, and the intelligent auxiliary electroplating process is further improved.

A plating tank and a condensation water induction treatment method thereof, comprising a condensation water induction treatment mechanism and a constant temperature mechanism provided on the tank body, the constant temperature mechanism comprising a profile 1 and a profile 2, the profile 1 being embedded and fixed on the periphery of the slot, the profile 2 being arranged under the outer bottom of the tank body, the condensation water induction treatment mechanism comprising a V-shaped reinforcing rib 1, an inverted V-shaped reinforcing rib 2, an electrode rod, and a tray, the bottom of the reinforcing rib 1 being provided with a small hole, the electrode rod being sleeved and fixed on the periphery of the small hole, and a tray being further arranged under the tank body; the profile 1 and the profile 2 both having a heating film built therein, the electrode rod being arranged at the bottom of the reinforcing rib 1, and the tank body being further provided with a controller and an ultrasonic transducer. The condensation water induction treatment mechanism is combined with the constant temperature mechanism to realize the reinforcement and heating of the tank body structure, while improving the subsequent electroplating quality, and also enabling the condensation water induction treatment, reducing the accumulation of condensation water, and the treatment of the influence of condensation water on electroplating, further improving the intelligent auxiliary electroplating process.

The invention discloses a large-size hemispherical glass composite strengthening method which comprises the following steps: (1) carrying out laser-induced crystallization treatment on an original inch hemispherical glass sheet, specifically, corroding the original glass sheet with hydrofluoric acid, coating a light absorption layer on the surface of the glass, and carrying out glass surface crystallization processing by adopting laser to obtain a crystallized glass sheet; finally, the glass is put into an annealing furnace for annealing treatment; and (2) cleaning the surface of the glass subjected to laser induction treatment, putting the glass into a vacuum or inert gas environment, scanning the surface of the glass by using a high-energy electron beam generated by an accelerator, and finally putting the glass into an annealing furnace for annealing treatment. The obtained large-size hemispherical tempered glass has the advantages of being excellent in mechanical performance, free of thermal deformation risk in the strengthening process, designable in crystal phase and the like, and in addition, the composite strengthening method has the advantages of being energy-saving and environment-friendly in process, safe, reliable and the like, and has good industrial application prospects.

The invention discloses a normal-temperature and normal-pressure preparation method of a carbon dioxide trapping material for solid waste derived direct air trapping, and relates to the technical field of preparation of carbon dioxide trapping materials. According to the method, industrial solid wastes (such as converter steel slag, nickel slag and copper slag) containing alkali metal or alkaline earth metal oxide components (such as MgO, CaO and FeO) are taken as raw materials, solid waste powder with the particle size of 100-800 microns is obtained through crushing and screening, and the solid waste powder and an interface regulating agent (such as silicate or aluminate compound) are subjected to dry mixing at normal temperature and normal pressure to form a surface interface regulating layer; then pre-carbonation induction treatment is carried out, so that a discontinuous carbonate reaction layer is formed on the surface layer of the powder, and the internal activity is kept; and finally, carrying out structure stabilization treatment to obtain the carbon dioxide trapping material. The whole preparation process does not need pressurization or high-temperature calcination, the cost is low, the energy consumption is low, the material realizes carbon dioxide capture through a reversible carbonation reaction under a direct air capture working condition, and the material has the advantages of stable structure and good cycle performance.

The invention discloses a method for regulating and controlling the quality of ready-to-eat poultry meat based on composite treatment of thermal ultrasound, a germinating agent and a licorice extract, and belongs to the technical field of food processing. The method comprises the following steps: performing germination induction treatment on meat products by adopting a germinating agent, then adding a licorice extract, mixing, performing thermal ultrasonic treatment, and finally performing vacuum packaging and storage. According to the method, the color stability of the instant chicken breast can be remarkably improved, the meat color is natural and bright, the sensory acceptance of the product is remarkably improved, the moisture distribution of the chicken breast can be effectively regulated and controlled, free water loss is reduced, the proportion of water not prone to flowing is increased, the water-retaining property of the product is enhanced, the phenomena that the meat is dry and tender are improved, and the eating juiciness and palatability are improved; characteristic flavor substances can be stably reserved, loss of key flavor components such as alcohols and esters is reduced, generation of putrefying peculiar smell is inhibited, the flavor of the product is purer, the flavor consistency in the shelf life is higher, and the problem that the flavor is seriously deteriorated in traditional high-temperature sterilization is solved.

The invention belongs to the technical field of food brewing, and provides a construction method and application of an artificial apple vinegar aging accelerating system based on multiple technologies. According to the construction method of the artificial aging accelerating system for the apple vinegar, a natural aging mechanism is systematically analyzed, multiple technologies such as slightly dissolved oxygen regulation and control, magnetic field induction treatment, cold and hot stress stimulation and ultrasonic intervention are innovatively integrated, and artificial aging accelerating optimization is carried out on the apple vinegar. A liquid chromatography-mass spectrometry (LC-MS) technology and a gas chromatography-mass spectrometry (GC-MS) technology are researched and combined, changes of nutritional ingredients and flavor substances of the aged product are comprehensively analyzed, and finally the optimal process combination is screened out. According to the process, the aging period is remarkably shortened, and three breakthroughs are realized at the same time: the total ester content is increased to 6.14 g / L from 3.464 g / L, the ester aroma component index is increased to 35.80% from 24.25%, and the flavor complexity and the product stability are remarkably improved.

The invention relates to the technical field of magnetic materials, and particularly discloses a high-frequency high-permeability nanocrystalline alloy and a preparation method thereof. The preparation method of the high-frequency high-permeability nanocrystalline alloy comprises the following steps that S1, iron powder is subjected to plasma immersion treatment to obtain enhanced iron powder, and terbium powder is subjected to laser induction treatment to obtain reconstructed terbium powder; s2, the enhanced iron powder, the reconstructed terbium powder, the silicon powder, the boron powder, the electrolytic copper powder, the niobium powder and the metal cobalt powder are added into a vacuum induction melting furnace to be smelted, and alloy liquid is obtained; s3, the smelted alloy liquid is sprayed to a copper roller rotating at a high speed at a high speed under the action of argon, and an alloy strip is prepared; and S4, the alloy strip is put into an annealing furnace with a magnetic field applying function, primary annealing and secondary annealing are carried out, and the high-frequency high-magnetic-conductivity nanocrystalline alloy can be obtained. By means of the preparation method, the magnetic conductivity and the magnetic flux density of the nanocrystalline alloy at the high frequency band are effectively improved.

The invention belongs to the technical field of neuromorphic calculation, and particularly relates to an in-situ oxidation two-dimensional heterojunction memristor and a preparation method and application thereof, and the memristor comprises a substrate, a dielectric layer, a two-dimensional heterojunction and a metal electrode which are sequentially arranged from bottom to top; the two-dimensional heterojunction is formed by constructing a p-type two-dimensional material layer and an n-type two-dimensional material layer on the surface of the dielectric layer; the surface of the two-dimensional heterojunction is subjected to oxygen plasma induction treatment and is used for regulating and controlling the defect state of the heterojunction; the two-dimensional heterojunction is a Van der Waals heterojunction; and the metal electrodes are arranged at two ends of the two-dimensional heterojunction. Compared with the prior art, the method solves the problems that in the prior art, a two-dimensional material is prone to natural oxidation in air, and the performance of a device is difficult to directionally regulate, control and optimize. According to the scheme, the two-dimensional PN-type heterojunction is processed through oxygen plasma functionalization, the PN region of the heterojunction is mildly oxidized, the defect state of the heterojunction is regulated and controlled, the hysteretic window of the memristor is further changed, and the memristive characteristic of the device is effectively regulated and controlled.

The invention belongs to the technical field of bio-based high polymer materials, and particularly relates to an antibacterial film and a preparation method thereof.According to the antibacterial film and the preparation method thereof, traditional lysozyme is replaced with fibrotic lysozyme, seville orange flower essential oil Pickering emulsion is added, and the flexibility and the antibacterial performance of the antibacterial film are remarkably improved. Specifically, the fibrotic lysozyme is a rigid fiber aggregate formed after acid heat induction treatment, not only maintains the original antibacterial activity, but also enhances the structural stability, so that the fibrotic lysozyme continuously plays an antibacterial role in a complex application environment. Besides, by adding the seville orange flower essential oil Pickering emulsion, the elongation at break of the antibacterial film is greatly improved, and the effect is unexpected by technicians in the field, so that the unexpected technical effect is reflected.

The invention discloses a preparation method of a PVDF (Polyvinylidene Fluoride) piezoelectric catalytic material with a hollow tubular structure, and particularly relates to the field of preparation of piezoelectric catalytic materials.The preparation method comprises the steps that drying, dispersing, shearing, degassing and viscosity adjusting treatment is performed on PVDF particle raw material data, forming preparation dispersion liquid data is constructed, and a basic material system is provided for the subsequent disturbance forming stage; a periodic disturbance field is applied on the basis of preliminary mold filling data, chain segment secondary orientation is dynamically induced, and dynamic disturbance maintaining data is generated and serves as an intermediate state formed by an inverse fatigue structure. Pressure-controlled and speed-controlled flow treatment and periodic disturbance field induction treatment are applied according to molding preparation dispersion liquid data, chain segment arrangement and local stress distribution are dynamically and synchronously regulated and controlled, and dynamic curing freezing and preparation path closed-loop optimization are combined. And stable construction of the inverse fatigue effect of the hollow tubular PVDF piezoelectric catalytic material in a periodic water pressure disturbance environment is realized.

The application discloses an oyster-soybean composite protein gel based on low-temperature cooperation construction and a preparation method and application thereof, and belongs to the technical field of functional food. The composite gel is formed by oyster protein and soybean protein isolate through low-temperature stabilization, medium-temperature construction and heat induction treatment, and the preparation method comprises the following steps: preparing an oyster protein suspension; preparing a soybean protein isolate suspension; mixing the oyster protein suspension and the soybean protein isolate suspension, stirring, standing, preliminarily constructing a gel structure, and then performing heat induction solidification treatment, and finally storing at low temperature to form the oyster-soybean composite protein gel, which can be used in the field of food processing. The oyster protein and the soybean protein isolate are combined, so that the composite gel has excellent gel strength, smooth texture and long-term storage stability, no organic chemical reagent and food additive is used in the preparation process, the formula safety is ensured, the process is simple, and great application value and industrialization prospect are shown.

The invention provides a preparation method and application of a biomass-based hard carbon negative electrode material with an adjustable pore-throat ratio. The preparation method comprises the following steps: carrying out hydrolysis induction treatment on a biomass-based precursor through a pore throat inducer to construct a controllable V-shaped open pore structure; and performing multi-section pyrolysis treatment to promote the opening to be closed, and forming a semi-closed pore structure with a specific pore throat / pore body ratio (pore throat ratio), thereby obtaining the hard carbon negative electrode material. According to the method, by regulating and controlling hydrolysis conditions and pyrolysis paths, the pore-throat ratio can be accurately adjusted, and the high pore body-narrow pore throat structural characteristics are constructed. The obtained hard carbon material not only inhibits the occurrence of irreversible side reaction and remarkably improves the initial coulombic efficiency (ICE), but also realizes the great improvement of platform capacity by optimizing an ion desolvation path and stabilizing an SEI structure.

The invention provides a preparation method of an asymmetric polyethersulfone microfiltration membrane, which comprises the following steps: dissolving polyethersulfone in a solvent, adding an additive and a pore-foaming agent, uniformly mixing to obtain a membrane casting solution, vacuumizing, scraping the membrane casting solution at high temperature, carrying out induction treatment by a low-temperature cold roller, and then conveying the membrane casting solution to a constant-temperature and constant-humidity environment for steam induction treatment to obtain the asymmetric polyethersulfone microfiltration membrane. Finally, performing water-bath curing to form a wet film; and soaking the wet membrane in an ethanol water solution, and drying to obtain the asymmetric polyethersulfone microfiltration membrane. According to the method, the temperature difference is formed through high-temperature film scraping and low-temperature cold roller induction, the relative viscosity of the film casting liquid is regulated and controlled through the temperature difference, the viscosity of the film casting liquid at the bottom of the film is increased, phase splitting is difficult, viscosity difference of the upper face and the lower face of the liquid film is caused, and the controllability of non-solvent movement is achieved by controlling the phase splitting rate of the liquid film in the steam induction stage; therefore, an integrated asymmetric microporous filter membrane structure is formed, the surface has high porosity, the pollutant holding capacity is increased, and the service life is prolonged.

The invention discloses a microcosmic high-curvature biomass carbon supported metal monatomic catalyst and a preparation method and application thereof, the catalyst is composed of a carrier and a monatomic metal active component, and the catalyst is obtained by supporting the monatomic metal active component on the carrier; the preparation method comprises the following steps: grinding chestnut shells into powder, adding the powder into an etching solution for treatment, and then adding nitrate for further carbon etching to obtain powder; carrying out carbonization induction treatment on the obtained powder, and washing to obtain the high-curvature biomass-based carbon material. The preparation method comprises the following steps: grinding and mixing a high-curvature biomass-based carbon material, a Fe precursor, NaCl and KCl, uniformly mixing, roasting, washing and drying to obtain a biomass carbon-loaded metal monatomic catalyst with a high-curvature microstructure; the microcosmic high-curvature biomass carbon-loaded metal monatomic catalyst is used for degradation reaction of organic pollutants, the preparation cost is low, and an oxidizing agent does not need to be added in the degradation process.

This invention discloses a method for preparing an alumina support, belonging to the field of catalyst support technology. Addressing the shortcomings of existing alumina supports, such as difficulty in synergistically improving pore volume and strength, and poor hydrothermal stability, this invention uses boehmite as raw material and silk fibroin as a biomimetic template. The process involves solution preparation, sol-gel, template addition, molding, drying, and segmented calcination to obtain the product. The core innovation lies in utilizing the dual-structure characteristics of β-sheet crystalline and amorphous regions of silk fibroin, combined with the synergistic effect of selective β-sheet induction treatment and segmented calcination, to construct a hierarchical pore structure and strengthen the support framework. The resulting support has a pore volume of 1.2-1.8 mL / g, a lateral compressive strength of 220-350 N / cm, and after aging in steam at 800℃ for 12 h, a specific surface area and pore volume retention rate of ≥80% and ≥85%, respectively, overcoming the limitations of traditional techniques. This method is simple, compatible with existing production lines, and the product is suitable for harsh conditions such as heavy oil hydrogenation, showing broad application prospects.

This application discloses a thin film and its preparation method, a light-emitting device and its preparation method, and an electronic device. The preparation method of the thin film includes the steps of: depositing a dispersion containing quantum dots and a crosslinking agent; performing a crosslinking induction treatment on the deposited dispersion; and performing a drying treatment on the dispersion after the crosslinking induction treatment to obtain a thin film. In this case, the surface of the quantum dots is connected with a plurality of first ligands, and the crosslinking agent contains at least two reactive groups. At least a portion of the first ligands can bond with the reactive groups of the crosslinking agent to form a second ligand, which can reduce the surface roughness of the thin film. Applying the preparation method of the thin film to the preparation of the light-emitting layer of a light-emitting device can improve the uniformity of the light-emitting layer, which is beneficial to improving the photoelectric performance and device lifespan of the light-emitting device.

The invention discloses a preparation method of mixed protein nanofibers, and belongs to the technical field of protein nanofibers. The preparation method comprises the following steps: compounding plasma protein and beta-lactoglobulin according to a specific mass ratio, dispersing in an ultrapure water medium, inducing protein conformation transformation under an acidic pH condition, obtaining a stable sol system by adopting a centrifugal clarification combined microfiltration membrane fine filtration technology, and finally implementing continuous thermal induction treatment in a constant-temperature dynamic incubation system, so as to obtain the high-purity beta-lactoglobulin. A system is controlled through magnetic stirring to maintain reaction uniformity, and exposure of protein functional groups and conformation recombination are promoted. The method can shorten the heating time of the protein nanofiber and improve the fiber yield and the fluorescence intensity, is green and efficient in process condition, high in operability, high in safety and suitable for industrial production, is used for development of high-value food, water treatment materials and bioplastics, recycles waste materials of the livestock and poultry slaughter industry, and has the advantages of environmental protection and environmental protection. Good application prospects and social and economic benefits are realized.

The application provides a preparation method for improving the gel performance of sturgeon myofibrillar protein, and belongs to the technical field of food processing.The preparation method for improving the gel performance of sturgeon myofibrillar protein provided by the application comprises the following steps: extracting myofibrillar protein in sturgeon meat to obtain a sturgeon myofibrillar protein solution; performing ultrasonic treatment and malondialdehyde induction treatment on the sturgeon myofibrillar protein solution to obtain a composite myofibrillar protein; performing dialysis on the composite myofibrillar protein to obtain a modified protein solution; and performing heat induction on the modified protein solution to obtain sturgeon myofibrillar protein gel.The preparation method can effectively improve the water retention and energy storage modulus of the sturgeon myofibrillar protein gel, so that the water retention capacity and deformation resistance of the gel are significantly enhanced, and the application of the sturgeon myofibrillar protein in gel-based products has an important role.

The invention aims to provide a superovulation inducing method for rats. According to the present invention, it is possible to provide a method for inducing superovulation, characterized in that an anti-statin antibody and a horse chorionic gonadotropin (eCG) are simultaneously administered to a female rat less than 6 weeks old, followed by a human chorionic gonadotropin (hCG). In addition, according to the present invention, an in vitro fertilization method using an ovum produced by the method of the present invention can be provided. The method can be used for rats of various strains.

The present invention provides a method for inducing red mango coloring by using UV-A / white light, wherein the UV-A light intensity is selected from 101.3 to 123.8 μW·cm ‑2 、198.3~242.3μW·cm ‑2 and 316.2~386.5μW·cm ‑2 , white light intensity 9000~11000Lux. The present invention aims at harvesting uncolored red mangoes at the green and ripe stage, adding three different light intensity gradients of low, medium and high UV-A to white light for induction treatment, and the temperature, humidity and light in the induction environment are all controllable. Continuous treatment for a period of time can effectively induce the accumulation of anthocyanins, promote coloring, and improve the appearance quality, nutritional quality and commercial quality of mangoes. The method of the present invention is reasonably designed, simple to operate, safe and effective, has low requirements on equipment, can be operated on a large scale, and can be demonstrated and promoted for commercial production.

The application provides a preparation method of an asymmetric polyether sulfone microporous filter membrane, polyether sulfone is dissolved in a solvent and an additive and a pore-forming agent are added, uniform mixing is carried out to obtain a casting solution, the casting solution is subjected to high-temperature blade casting after vacuum treatment, then is subjected to low-temperature cold roller induction treatment, and then is sent to a constant-temperature and constant-humidity environment for steam induction treatment, and finally is subjected to water bath solidification to form a wet membrane; the wet membrane is soaked in an ethanol aqueous solution and is dried to obtain the asymmetric polyether sulfone microporous filter membrane. In the method, a temperature difference is formed by high-temperature blade casting and low-temperature cold roller induction, the relative viscosity of the casting solution is regulated through the temperature difference, the viscosity of the casting solution at the bottom of the membrane is increased, phase separation is difficult, the viscosity of the upper and lower surfaces of the liquid membrane is different, the phase separation rate of the liquid membrane in the steam induction stage is controlled, the controllability of non-solvent movement is achieved, and thus an integrated asymmetric microporous filter membrane structure is formed, the surface has high porosity, the pollution capacity is increased, and the service life is increased.