19results about How to "Improve load effect" patented technology

The invention provides a preparation method of an acid-resistant and chlorine-corrosion-resistant porous composite electrode and a device constructed on the basis of the electrode and used for preparing hydrogen and chlorine by electrolyzing a sodium chloride solution, two cavities are provided, an acid or neutral saturated sodium chloride solution is filled in the cavities, the cavities are separated by a proton exchange membrane or a diaphragm, and the proton exchange membrane or the diaphragm is filled in the cavities. And in the electrolysis process, the cathode generates high-purity hydrogen, the anode generates high-purity chlorine, the chlorine is absorbed by sodium hydroxide in the gas collection bottle and generates sodium hypochlorite, or the chlorine is introduced into a sodium bromide / sodium iodide solution to replace bromine / iodine elementary substances, and the chlorine is discharged from the gas collection bottle. The sodium hypochlorite solution and the bromine / iodine water are used for disinfection and sterilization experiments. The corrosion-resistant porous composite electrode for electrolysis of an acidic or neutral saturated sodium chloride solution is prepared, the electrolysis voltage of the corrosion-resistant porous composite electrode is further reduced by loading a cathode / anode catalyst, and an acidic or neutral saturated sodium chloride solution electrolysis device constructed based on the electrode can be used for preparing high-purity hydrogen and chlorine.

The utility model provides a wind resistance balancing wing plate, which belongs to the technical field of balancing wing plates, and comprises a wing plate main body, the wing plate main body is divided into a front edge, a wing-shaped middle part and a rear edge along the spanwise direction, the wing plate main body is provided with a sawtooth structure, the sawtooth structure is continuously arranged triangular sawteeth, and the triangular sawteeth are arranged in the wing plate main body. The sawtooth structures are integrated on the edge of the wing plate body to form an integrated structure, the vertex of each sawtooth is located on the edge line of the wing plate body, gears of the sawtooth structures are arranged in a staggered mode, and the sawtooth structures are continuously distributed along at least one side edge of the wing plate body. The sawtooth structures are continuously distributed along the edge of at least one side of the wing plate body, preferably distributed on the edges of the two sides, so that the airflow optimization effect is maximized, turbulent flow of a traditional wind resistance balance wing plate is reduced, the smoothness of airflow is improved, and therefore wind resistance is reduced, and stability and efficiency are enhanced.

The invention discloses a variable-stiffness chain type lattice structure. When the lattice structure is controlled in the first direction and the second direction, the multiple first unit cells are arranged at intervals in the first direction and the second direction respectively, the two ends of the multiple second unit cells are arranged between every two adjacent first unit cells in a sleeving mode respectively, and projection parts of the second unit cells and the two adjacent first unit cells on the horizontal plane coincide. When the lattice structure is controlled in the first direction, the second unit cells are arranged in the first direction and the second direction, the second unit cells arranged in the first direction are arranged on the adjacent second unit cells in a sleeving mode, and the fourth connecting rings of the second unit cells and the fourth connecting rings of the adjacent second unit cells are in a horizontal arrangement state and a vertical arrangement state correspondingly; the driving parts penetrate through the second connecting holes of the second unit cells in the first direction. The variable-stiffness chain type lattice structure has the advantages of excellent load capacity, high response speed, high stability and simple structure.

The invention discloses a mesoporous silica ultrathin nanosheet and a preparation method thereof, and relates to the field of mesoporous materials.The method mainly comprises the following steps that silicon sources with different proportions are added into a prepared precursor solution in two times in a constant-temperature water bath kettle while stirring is conducted, the preparation method comprises the following steps: adding an aqueous hydrochloric acid solution with a certain concentration into the solution after reacting for a period of time, continuously stirring for a period of time, standing, carrying out hydrothermal treatment on the mixture, and washing, drying and calcining the product after hydrothermal treatment to finally obtain the mesoporous silica ultrathin nanosheet. The optimal thickness of the mesoporous silica ultrathin nanosheet can reach about 50nm, and compared with other mesoporous silica, the mesoporous silica ultrathin nanosheet has the advantages that the length of a mesoporous channel is greatly shortened, the specific surface area is increased, more active sites are provided, rapid transmission of a medium is further facilitated, and the mesoporous silica ultrathin nanosheet has a good application prospect. The possibility is provided for further improving the application value of the mesoporous silicon dioxide.

The invention discloses a composite membrane based on sodium carboxymethyl cellulose and a preparation method of the composite membrane, and belongs to the technical field of polymer composite membranes. According to the invention, sodium carboxymethyl cellulose is used as a basic membrane, then by optimizing formula components and adding starch, cellulose nanocrystals and tannic acid to generate interaction force, the cross-linking property of a system can be increased, a matrix structure is strengthened, the mechanical property of the composite membrane is further increased, and the smoothness of the surface of the composite membrane is increased under the assistance of the action of carnauba wax; the plasticizer can increase the flexibility of the composite membrane, antibacterial groups can be carried by adding antibacterial particles and high-molecular sodium carboxymethyl cellulose groups, the composite membrane is endowed with remarkable antibacterial performance, and modified diatomite loaded sodium dehydroacetate also has a certain antibacterial effect and a synergistic effect, so that the antibacterial performance is more excellent, and the modified diatomite loaded sodium dehydroacetate can be inserted into a system; when the composite film is applied to food packaging, the shelf life of food can be prolonged.

The invention discloses a visible light photocatalyst for in-situ synthesis of hydrogen peroxide and a preparation method and application thereof, belonging to the technical field of photocatalytic material preparation; the invention adopts a wet impregnation method to impregnate a covalent organic polymer with chloroauric acid so that the chloroauric acid is evenly distributed on the inner surface of the covalent organic polymer, thereby assisting sodium borohydride reduction to obtain gold nanoparticles and loading them on the covalent organic polymer to synthesize a gold-loaded covalent organic polymer (Au / COFs) visible light photocatalyst; the photocatalyst can significantly improve the absorption capacity of visible light, has good visible light photoresponse and excellent photocatalytic performance, and can efficiently reduce oxygen to synthesize hydrogen peroxide in situ under visible light; the photocatalyst can be applied to the environmental field of sustainable development and the field of clean production, sterilizes water bodies by combining with advanced oxidation technology, and the preparation method is simple, the synthesis efficiency is high, meets the actual production needs, and has high practical value and good environmental significance.

This invention discloses a method for preparing resveratrol-loaded whey protein amyloid fibers based on moderate electric field modification. The method involves pretreating whey protein using a moderate electric field non-thermal effect, forming amyloid fibers through acid-thermal treatment, and further constructing a resveratrol delivery system based on protein fibrils. The resulting whey protein fiber-resveratrol complex exhibits excellent loading performance, antioxidant activity, and bioavailability, providing an effective carrier construction strategy for the efficient delivery and stabilization of hydrophobic and environmentally sensitive active molecules. This invention reveals the regulatory mechanism of the moderate-intensity electric field non-thermal effect in the protein fibrillation process, providing new technical ideas and theoretical references for the precise design of protein fiber structures and the development of functional protein-based delivery carriers, and providing technical support for the green preparation of protein fibrils and their in-depth development in functional foods.

The application relates to the technical field of drug delivery, in particular to a ZIF-8 / PDA composite material and a preparation method and application thereof. The ZIF-8 / PDA composite material provided by the application has good feasibility in terms of loading and delivering curcumin. The ZIF-8 material is modified by polydopamine, and the loading effect of the ZIF-8 material as a carrier on drugs is improved. The characterization results show that the drug loading performance of ZIF-8@PDA is obviously improved. The in-vitro release experiment results show that CuR@ZIF-8@PDA has more significant pH response drug release characteristics, shows good inhibition on Staphylococcus aureus and Escherichia coli, the hemolysis rate is 3.1%, is within a safe range, the inhibition on HepG2 cells is stronger than that of CuR@ZIF-8, and more obvious oxidative stress reaction and cell apoptosis can be induced.

The invention discloses a method for preparing a plant-based composite peptide trace element chelate for feed processing, wherein rice bran is selected as a plant-based component, and rice bran protein is extracted therein, which is then degraded to produce small peptides, which are then further subjected to chelation reaction with an aqueous solution containing copper nitrate, cobalt nitrate, zinc nitrate and manganese nitrate. The chelate obtained by the invention can be used for feed processing, has a high trace element chelation rate, is comprehensive in nutrition, has very excellent efficacy in feeding livestock and poultry, and has broad market prospects.

The utility model discloses a transverse driving device suitable for a needle plate of a flat knitting machine. The transverse driving device comprises a motor, a rocker arm, a left sliding rod, a right sliding rod, at least one left limiting hole and at least one right limiting hole, an output shaft of the motor is connected with a first end of a rocker arm, the axial direction of the output shaft is perpendicular to the length direction of the rocker arm, a second end of the rocker arm is connected with a right sliding rod, the right sliding rod is connected with the right part of the needle plate, and the length directions of the right sliding rod and the rocker arm are parallel to the base plane of the needle plate; the right limiting hole is formed in the horizontal direction, the right sliding rod penetrates through the right limiting hole to be connected with the right portion of the needle plate, and the right sliding rod can only do transverse reciprocating motion in the width range of the right limiting hole in the vertical direction. The left limiting hole is formed in the horizontal direction, the left sliding rod penetrates through the left limiting hole to be connected with the left portion of the needle plate, the left sliding rod can only do transverse back-and-forth movement in the width range of the left limiting hole in the vertical direction, the working requirement for transverse high-speed back-and-forth movement of the needle plate is met, and stability is achieved. The utility model further discloses the flat knitting machine comprising the transverse driving device.

The present application belongs to the technical field of biomaterial surface modification, and particularly relates to a multi-level micro-nano structure mixed phase titanate hydrogen release coating and a preparation method and application thereof. Nanometer titanium oxide and calcium carbonate are used as raw materials, and the two are uniformly mixed through a mechanical ball milling method. PVA is added for bonding and granulation, grinding and sieving to obtain a powder that can be sprayed. First, an initial coating containing titanium / calcium is prepared on a pure titanium substrate through plasma spraying, and the prepared coating is subjected to alkaline hydrothermal treatment to in-situ grow a mixed phase titanate micro-nano sheet structure. On this basis, the coating is further subjected to wet steaming treatment to destroy and reduce the micro-nano sheet, and in-situ induce the growth of dense secondary nano particles on the surface of the micro-nano sheet, so that the coating has better ammonia borane loading capacity, realizes stable and long-acting hydrogen release for more than 15 days, can effectively eliminate oxidative stress in a complex environment, and has excellent biocompatibility.

The invention relates to modified graphene as well as a preparation method and application thereof. The preparation method of the modified graphene comprises the following steps: mixing a dispersing agent, organic acid and graphite in a first dispersion medium to obtain a first dispersion system, and performing liquid-phase stripping treatment on the first dispersion system to obtain a graphene suspension; removing graphite which is not stripped in the graphene suspension to obtain a graphene dispersion liquid; carrying out solid-liquid separation treatment on the graphene dispersion liquid to obtain a solid-phase graphene raw material; and mixing the solid-phase graphene raw material, an inorganic corrosion inhibitor and a surfactant in a second dispersion medium to obtain a second dispersion system, and carrying out heat preservation treatment on the second dispersion system. According to the preparation method of the modified graphene, the modified graphene which is relatively good in corrosion resistance, relatively good in dispersing performance and not easy to agglomerate can be prepared, so that the modified graphene can be used as an anti-corrosion filler with stable performance.

The invention discloses a method for repairing damage of high-dose gallic acid to the performance of myofibrillar protein gel based on a beta-cyclodextrin metal organic framework. Extracting myofibrillar protein; the preparation method comprises the following steps: preparing a beta-cyclodextrin metal organic framework by taking beta-cyclodextrin and potassium ions as raw materials; mixing the gallic acid solution with the beta-cyclodextrin metal organic framework solution to obtain a gallic acid / beta-cyclodextrin metal organic framework inclusion compound solution; then adding myofibrillar protein for homogenization, then adding a Fenton oxidation system, uniformly mixing and reacting; and heating the reacted myofibrillar protein in a water bath, and cooling to obtain the performance-repaired myofibrillar protein gel based on the beta-cyclodextrin metal organic framework encapsulated gallic acid. The gallic acid is encapsulated by the beta-cyclodextrin metal organic framework, so that excessive aggregation of myofibrillar protein caused by high-dose gallic acid is reduced, more proteins are promoted to participate in formation of an ordered gel network structure, and the myofibrillar protein gel with higher gel strength and water binding capacity is obtained.

The invention discloses a preparation method of an oxidized nano cellulose doped polyvinyl alcohol-based magnetic functional membrane for loading a natural antioxidant, and belongs to the technical field of textile chemistry. PVA is used as a matrix, magnetic nano iron oxide is used as an additive, and aldehyde group-containing oxidized nano cellulose is used as a reinforcing agent and a cross-linking agent, so that the magnetic functional membrane is prepared. And respectively preparing the nano-cellulose doped polyvinyl alcohol magnetic functional film loaded with the natural antioxidant through a film casting method. The preparation method overcomes the defects of low strength, poor oxidation resistance, poor air permeability and the like of the existing polyvinyl alcohol film, and can be used for preparing a flexible polymer functional film with conductive, anti-ultraviolet and anti-oxidation functions and high mechanical strength.

The present invention relates to the technical field of copper alloys, specifically to a high-strength and high-thermal-conductivity copper alloy prepared based on a metal powder injection molding process. The scheme uses copper powder, molybdenum powder, cobalt powder, stainless steel powder and silicon carbide powder as a mixed powder, and modifies the surface of the mixed powder. On the one hand, the compatibility between the mixed powder and the binder is improved, so that the binder can be evenly coated on the surface of the mixed powder. On the other hand, after the surface of the mixed powder is modified, the powders interact with each other, which can improve the fluidity and powder loading capacity of the feed. Then the scheme prepares the copper alloy through an injection molding process. The copper alloy has excellent mechanical properties and hardness, and the thermal conductivity of the product is also relatively excellent, and the wear resistance is good, which meets the actual application requirements.

The invention discloses a lipase mutant, an immobilized enzyme and application thereof, and belongs to the field of bioengineering. The specific activity of the SpL enzyme mutant K193R / I134V to 7-ACA is 1.6 times that before mutation, and the half-life period of the SpL enzyme mutant K193R / I134V at 45 DEG C, 50 DEG C and 55 DEG C is prolonged by 1.9 times, 2.6 times and 3.8 times. SpL enzyme with a his label is immobilized on the hydrophobically modified nickel-doped SBA-15 mesoporous molecular sieve, the activity of the enzyme is retained, the thermal stability and reutilization performance of the enzyme are improved, the immobilized enzyme is used for catalyzing to generate D-7-ACA, the D-7-ACA can be repeatedly used for at least 10 batches, and the conversion rate is kept to be 99% or above.

The utility model discloses a kind of elevators with horizontal conveying, it is related to elevator technical field, including mobile frame, lifting platform is equipped in mobile frame, the inside one side of mobile frame is fixed with the lifting drive mechanism for driving lifting platform lifting, lifting drive mechanism includes lifting support base, sliding slot is equipped in the both sides of lifting support base, lifting seat is slidably connected in sliding slot, lifting seat is fixedly arranged on lifting platform, screw rod is threadedly connected on lifting seat, conveying belt is equipped on lifting platform, first sliding support assembly and second sliding support assembly are equipped between the four corners of lifting platform and mobile frame.The utility model structure is light, conveniently layout on production line, adopt unique lifting frame, so that it has better load capacity, by setting multiple sliding support assembly makes it have better stability in lifting process, can improve the arrangement efficiency of elevator on production line and the conveying efficiency to product.

The application discloses a method for optimizing PIP stacked capacitors in an ETOX Flash, the PIP stacked capacitors are integrated in the Flash, and an active region of the PIP stacked capacitors is a plurality of comb-shaped strips arranged in a row; a first plate of the PIP stacked capacitors is formed by a floating gate polysilicon of a PIP stacked capacitor region, and an active region below an outgoing end of the first plate is kept in a block shape and is combined; the first plate of the PIP stacked capacitors formed by the floating gate polysilicon is arranged alternately with STIs and has a height difference, and a plurality of STIs isolate the floating gate polysilicon to form a plurality of parallel strip arrangements; a 3D appearance in a wave type fluctuation of a second dielectric layer serving as a capacitor dielectric layer increases a surface area of the second dielectric layer in a limited horizontal projection area, and increases a capacitance; above the second dielectric layer is a part of a second plate formed by a control gate polysilicon, which is connected with the active region of the PIP stacked capacitor region through an interconnection structure, and forms the second plate of the PIP stacked capacitors together; and the first dielectric layer is between the floating gate polysilicon of the PIP stacked capacitor region and the active region.

The invention belongs to the technical field of earphone shell production, and particularly relates to a forming mold for earphone shell production, a mold group can integrally rotate, so that a plurality of molds can perform different production stages such as injection molding, cooling and material taking within the same time, the production period is further shortened, and meanwhile, the production efficiency is improved due to the automatic design of the molds. For example, an injection system controlled by an electric telescopic rod, a contraction spring and an arc-shaped block automatically control opening and closing of the front mold and the rear mold and the like, the manual operation time is greatly shortened, the use safety of the mold is improved, meanwhile, the production efficiency is improved, and the production cost is reduced. Each connecting rod group comprises four connecting rods which are arranged in pairs in the front-back direction and are symmetrically distributed up and down, so that the four connecting rods jointly form two groups of structures similar to double-fork-arm structures up and down, and the contact surfaces of the front mold and the rear mold can always keep parallel operation when the front mold and the rear mold are opened and closed front and back, so that the precision of the mold is improved; and the quality of products produced by the die is ensured.