125results about How to "Fully combined" patented technology

The invention relates to the technical field of computers, and discloses a scientific research direction recommendation method based on student portraits and related equipment. The method comprises the following steps: acquiring multi-source heterogeneous data of students to be recommended, preprocessing the multi-source heterogeneous data, extracting and fusing multi-modal features of the preprocessed data to obtain comprehensive feature representation, and dynamically modeling student portraits of the students to be recommended to obtain student dynamic portraits; performing graph relation extraction on the obtained scientific research literature data and scientific research project data to obtain a scientific research direction knowledge graph; performing cross connection on the student dynamic portrait and the scientific research direction knowledge graph to obtain a recommendation candidate set, and performing multi-dimensional recommendation scoring and sorting on the recommendation candidate set to obtain a scientific research direction recommendation list; and performing interpretation generation and dynamic adjustment on the scientific research direction recommendation list to generate a recommendation scheme. Student data and related scientific research information are fully combined, and the accuracy of recommending scientific research directions to students is improved.

The invention discloses an image super-resolution enhancement method for image segmentation, which combines super-resolution enhancement and image semantic segmentation by constructing a task-driven joint training framework, trains a segmentation network and a super-resolution enhancement network at the same time, and optimizes the super-resolution enhancement network through mutual collaborative optimization. The segmentation result and the super-resolution enhancement result are enhanced mutually, and image segmentation is completed. The method is different from an existing single training method, the overall performance of super-resolution enhancement and semantic segmentation tasks can be remarkably improved, the quality and semantic consistency of the enhanced image are improved by optimizing the loss functions of super-resolution enhancement and semantic segmentation at the same time and fully combining detail information and semantic information of the image, and the image quality is improved. By introducing a targeted loss function, high-frequency details and context information of the image are effectively integrated, the precision of semantic segmentation is improved while image enhancement is ensured, the explanation ability of the model is improved, and the robustness and adaptability of the model in a complex scene are also remarkably enhanced.

The invention belongs to the technical field of material preparation, and aims to solve the problem that the comprehensive performance of a material is affected by non-uniform microstructure of the material due to the fact that the distribution and grain size of each phase in a metal ceramic matrix are difficult to accurately control in the conventional preparation process of the metal ceramic material. Therefore, the invention provides the preparation method of the fiber-reinforced metal ceramic material, and the preparation method comprises the following steps: pretreating silicon carbide fibers; mixing and grinding the titanium metal powder and the silicon carbide ceramic powder according to a preset proportion; adding silicon carbide fiber particles and putting the mixture into an ultrasonic mixer; adding a dispersing agent and a binding agent and mixing again; sequentially carrying out cold isostatic pressing molding and hot pressing molding on the mixture; and sequentially carrying out pre-sintering, high-temperature sintering, cutting and surface treatment on the obtained green body. The strength, toughness, hardness, high temperature resistance, wear resistance and corrosion resistance of the prepared metal ceramic material are remarkably improved, the high-performance requirement of the aviation field can be better met, and powerful support is provided for the aviation industry.

The invention provides a preparation method of an ADC foaming agent for improving foaming pore density, which comprises the following steps: step 1, mixing a modified inorganic nucleating agent with water according to a predetermined mass ratio, adding a dispersing agent, and uniformly mixing to prepare uniform and stable suspension slurry to prevent agglomeration of the nucleating agent; 2, when the conversion rate of the biurea reaches 80%-85%, adding the suspension slurry, so that the inorganic nucleating agent is uniformly attached to the surface of the ADC crystal; and 3, continuing the oxidation reaction until the biurea conversion rate reaches 92% or above, and then washing, centrifuging and drying to obtain the ADC foaming agent. The ADC foaming agent for improving the foaming pore density is prepared by the method. The inorganic nucleating agent is added in the stage of preparing the ADC foaming agent, and compared with the inorganic nucleating agent added in the subsequent foam material preparation process, the density of foaming pores can be remarkably improved.

The invention discloses a high-yield laminated mold, and relates to the technical field of molds, the high-yield laminated mold comprises a middle mold base, external mold bases are slidably connected to the two sides of the middle mold base, mold cavities are formed in the two sides of the middle mold base, and hot runners communicating with the mold cavities are installed in the middle mold base; a cavity is formed in the middle mold base, an ejector pin penetrating through the middle mold base and extending into the cavity is slidably connected into the middle mold base, a boss is fixedly installed in the ejector pin, a positioning column used for being connected with a nut in a sleeved mode is fixedly connected to the boss, and the sealing unit comprises a sleeve and a piston plate which are slidably connected into the positioning column. The larger the internal pressure of the first sealing ring is, the tighter the first sealing ring and the inner wall of the nut is, plastic in a molten state is prevented from entering threads of the nut under the pressure, after a material is cooled and shaped, the roller and the first sealing ring can automatically restore to the original shape, the force needed by demolding ejection of a product is reduced, and the ejector pin can eject the product perfectly and conveniently.

The invention belongs to the technical field of metal composite material preparation, and relates to an ultrasonic-assisted different-temperature aluminum / magnesium / aluminum three-layer composite plate rolling method which comprises the following steps: pretreating a magnesium plate and two pretreated aluminum strips; heating in an induction coil heating furnace to obtain a heated magnesium plate, and welding and sealing edges to obtain two coiled combined aluminum strips; preparing an aluminum / magnesium / aluminum three-layer plate blank; and ultrasonic waves are applied to the rollers, the aluminum / magnesium / aluminum three-layer plate blank is rolled through the upper roller and the lower roller, and the aluminum / magnesium / aluminum three-layer composite plate is obtained. The magnesium plate is heated through the induction coil, the aluminum strip is not heated, so that different-temperature rolling is achieved between the magnesium plate and the aluminum plate, the plasticity difference caused by performance difference of magnesium and aluminum materials can be reduced, an oxide layer on the surface of to-be-bonded metal is broken by applying ultrasonic waves to the roller, and the bonding quality of the to-be-bonded metal is improved. Therefore, dissimilar metals with large plasticity difference are fully combined, and the defects of holes, cracks and the like of the aluminum / magnesium / aluminum three-layer composite board on a composite interface are avoided.

The invention relates to a multifunctional magnesium alloy coating with high biocompatibility and a preparation method and application thereof. Comprising the following steps: (1) carrying out surface treatment on a magnesium alloy substrate; (2) micro-arc oxidation treatment; (3) after preparing a coating solution, carrying out double-sided ultrasonic atomization spraying; and (4) drying, soaking and cleaning. According to the preparation method, a micro-arc oxidation treatment technology and a double-sided ultrasonic atomization spraying technology are combined for the first time, pores and cracks of the MAO coating serve as binding sites, effective loads are provided for the silk fibroin / nano-hydroxyapatite particle coating, the MAO coating and the SF / nHAp coating are fully combined, and the composite coating is prepared. According to the coating, the MAO coating and the SF / nHAp coating are combined for the first time, the defect of rapid degradation when the magnesium alloy serves as an in-vivo implant is effectively overcome, the corrosion resistance of the magnesium alloy is remarkably improved, the release rate of hydrogen after implantation is reduced, and rising of the pH value around the implant is slowed down.

The invention provides an electronic device, a ceramic substrate and a preparation method thereof, and relates to the technical field of semiconductors. The ceramic substrate comprises a ceramic base body and a liquid channel layer, the liquid channel layer is arranged in the ceramic base body, the liquid channel layer and the ceramic base body are integrally sintered and formed, the liquid channel layer comprises a liquid channel, the liquid channel is used for containing a cooling medium, and the liquid channel extends in the ceramic base body along a three-dimensional space path. The preparation method of the ceramic substrate comprises the following steps: preparing slurry containing ceramic powder, preparing a sacrificial template matched with a target liquid channel in shape, pouring the slurry to coat the sacrificial template, filling a mold with the slurry to obtain a ceramic blank, removing the sacrificial template to form a hollow channel in the ceramic blank, and sintering to form the ceramic substrate with the liquid channel. The electronic device comprises the ceramic substrate, a component and a liquid cooling circulation system.

The invention discloses a preparation method of a triple detection kit for influenza A, influenza B and new coronavirus antigens, and belongs to the field of respiratory virus in-vitro detection. In the antibody labeling stage, the antigen and the antibody can be more sufficiently combined in a manner of adding the linking arm, so that the antigen detection sensitivity can be improved. In the metal spraying stage, a novel coronavirus monoclonal antibody, an influenza A virus monoclonal antibody and an influenza B virus monoclonal antibody marked by latex microspheres are sequentially subjected to multi-layer metal spraying at the same position by a metal spraying instrument, the two antibodies are isolated by a trehalose solution, and metal spraying of three layers of antibodies isolated from each other is completed. And the cross reaction between different antibodies of the conjugate pad in the storage process is avoided, so that non-specific binding is avoided, and the storage stability is improved. The detection kit prepared by the method can specifically detect the novel coronavirus, the influenza A virus and the influenza B virus, and has the advantages of high sensitivity, good repeatability and the like.

The invention provides a one-time forming diamond die for high-temperature drawing and a machining method. An upper outer ring die punch is arranged on the outer wall of a main pressing die punch in a sleeving mode, a sliding annular die punch is arranged in the main pressing die punch in a sleeving mode, an outer lower die is arranged in a female die, a positioning lower die is arranged in the outer lower die in a sleeving mode, and the upper end of the positioning lower die is of a conical structure; the conical structure protrudes out of the upper surface of the outer lower die. The bottom plate and the mold core are pressed into a whole and then sintered, manufacturing of the wire drawing mold is completed, the production efficiency is effectively improved, the production cost is reduced, the matching precision is high, and the manufacturing efficiency is high.

The invention provides a nucleic acid extraction method, and relates to the technical field of nucleic acid extraction, the nucleic acid extraction method comprises the following steps: putting a to-be-detected sample, a lysis solution and magnetic beads into a reaction container, and splitting the to-be-detected sample by the lysis solution to release nucleic acid; performing ultrasonic treatment on the solution in the reaction container for preset time, so that the magnetic beads are dispersed in the solution and are combined with the nucleic acid; focusing the magnetic beads on a moving rod; transferring the magnetic beads from the reaction container to a subsequent solution through a moving rod, and carrying out ultrasonic treatment on the subsequent solution, so that the magnetic beads are re-dispersed in the subsequent solution; and removing the magnetic beads from the subsequent solution to obtain the nucleic acid. The magnetic beads are dispersed in a solution in a non-contact manner through sound streams generated by ultrasonic waves and flow in a vortex shape, the specific surface area is greatly increased, the magnetic beads and nucleic acid can be fully combined without contact with the solution in an ultrasonic manner, the pollution problem caused by existing direct stirring is avoided, the probability of contact pollution is reduced, and the production efficiency is improved. The subsequent nucleic acid extraction purity is effectively improved.

The invention belongs to the field of aluminum electrolytic capacitors, and particularly relates to a sectional type sintering method of an aluminum electrolytic capacitor anode foil, which comprises the steps of slurry preparation, coating, drying and sintering, when the slurry is prepared, the slurry can be fully bonded by adding a very small amount of binder, the redundant binder can be easily removed in the first stage of sintering, and a large number of tiny holes are formed in the surface of an aluminum powder layer; the tiny holes are beneficial to absorbing deformation energy when the anode foil is bent, so that cracks are reduced, the bending performance of the sintered foil is greatly enhanced, and the formed anode foil has more excellent mechanical properties; in the second stage of sintering, sufficient combination of the aluminum powder and the aluminum foil substrate is guaranteed; and meanwhile, a good sintering neck is formed between the aluminum powder and the aluminum powder, so that the aluminum sintered foil has good bending resistance.

The invention relates to the technical field of melt-blown filter element production, and discloses a superfine fiber melt-blown filter element production device. The superfine fiber melt-blown filter element production device comprises a rack, the rack is provided with an installation frame with the position capable of being adjusted, the installation frame is provided with a conveying mechanism and a cutting machine, the conveying mechanism is provided with a center shaft, the rack is further provided with a fine fiber spray head and a coarse fiber spray head, and the fine fiber spray head and the coarse fiber spray head are arranged on the cutting machine. The fine fiber spray head is located above the central shaft, and the crude fiber spray head is located on one side below the central shaft, so that the thick fiber and the fine fiber are intersected and fused before being attached to the central shaft after being sprayed out. According to the superfine fiber melt-blown filter element production device provided by the invention, coarse and fine fibers sprayed by the coarse fiber spray head and the fine fiber spray head can be intersected and fused before being attached to the central shaft, so that the fibers can be combined more sufficiently and cannot be interfered by disturbing airflow, and the quality of the melt-blown filter element is ensured.

The invention discloses a method for purifying recombinant X VII type collagen expressed by pichia pastoris fermentation, and relates to the technical field of protein purification methods. The purification method comprises the following steps: centrifuging a recombinant X VII type collagen fermentation liquid fermented and expressed by pichia pastoris engineering bacteria, filtering the obtained centrifugate, then carrying out ultrafiltration concentration, cooling the obtained ultrafiltration concentrated liquid to 2-10 DEG C, then adding Triton X-114, maintaining the material liquid at 2-10 DEG C, carrying out chromatography, leaching and extraction, carrying out ultrafiltration concentration on the extraction liquid, and then carrying out freeze drying to obtain the recombinant X VII type collagen. The recombinant X VII type collagen freeze-dried powder is obtained. The purification method provided by the invention is simple and convenient in whole operation process, can effectively remove endotoxin, can prepare the high-purity recombinant X VII type collagen freeze-dried powder, and is convenient for industrial large-scale application.

A natural orifice synergistic dosing device comprises a slender hard rod-shaped body and a soft body wrapping the rod-shaped body, the rod-shaped body is provided with a rod-shaped body head portion entering a natural orifice opening during use, a rod-shaped body middle portion and a rod-shaped body tail portion located outside the natural orifice opening during use, and the dosing device is provided with a liquid injection opening, a liquid passage and a radial liquid outlet. The head area of the soft body is provided with a hollow flexible wrapping part and / or a suction cup part, the internal space of the flexible wrapping part can at least contain one part of the tail of the solid suppository, the solid suppository is firstly inserted into the flexible wrapping part and / or adsorbed on the suction cup part during use, and then the administration device is slowly inserted into the natural cavity through the opening of the natural cavity. And then a liquid medicament is injected through the liquid injection port, the dosing device is pulled out of the opening of the natural cavity, and the solid suppository is retained in the natural cavity.

The invention discloses a hawthorn medicine wastewater treatment device and a comprehensive treatment method thereof, and relates to the technical field of wastewater treatment.The hawthorn medicine wastewater treatment device comprises a wastewater treatment pond, and a flocculation impact mechanism is arranged at the top of the wastewater treatment pond; by arranging a flocculation impact mechanism and adopting an inclined and inclined lower columnar high-pressure spraying mode, when a large amount of flocculating agent is flushed into wastewater in a wastewater treatment tank, the wastewater is fully scattered and rapidly flows by utilizing high pressure, and meanwhile, the wastewater is rapidly diffused in a mode of flushing away from the center of the wastewater treatment tank to the periphery of the wastewater treatment tank; the waste water diffused to the periphery of the waste water treatment tank is turned over to the upper layer and flows back to the center of the waste water treatment tank through the upper layer, so that a flocculating agent is automatically sprayed, the mixing effect in the waste water treatment tank is completed, and the function of turning over and circulating is achieved through spraying in the inclined lower direction; the problem that part of wastewater dirt deposited at the bottom cannot be in full contact with the flocculating agent is effectively prevented.

The invention relates to medium carbon gear steel for an automobile synchronizer. The medium carbon gear steel comprises the following chemical components in percentage by weight: 0.35 to 0.40 percent of C, 0.10 to 0.35 percent of Si, 1.20 to 1.40 percent of Mn, 0.35 to 0.50 percent of Cr, 0.025 to 0.045 percent of S, less than or equal to 0.025 percent of P, less than or equal to 0.20 percent of Cu, less than or equal to 0.030 percent of Al, 0.03 to 0.06 percent of V, 0.0020 to 0.0060 percent of Ca and the balance of Fe and inevitable impurities. The mechanical properties of the controlled-rolling and controlled-rolling strip meet the conditions that Rm is larger than or equal to 850 MPa, Rel is larger than or equal to 700 MPa, A is larger than or equal to 12%, Z is larger than or equal to 50%, the surface hardness of the rolled strip is 180-240 HBW, the Ca / S ratio is controlled to reach a reasonable range, the sulfide form in the steel has the characteristics of being small, distributed in a dispersed mode, small in length-width ratio and the like, damage to metal continuity possibly caused by formation of thick sulfide is reduced, and the machinability of the steel is improved.

The utility model discloses a supergravity centrifugal wet dust removal device for an underground coal mine, which is a purification device for air containing respirable dust, comprises a negative pressure air inlet, an air outlet, a spraying system, a rotary filter cartridge, a pollution discharge box, a power mechanism and the like, and is a device for separating solid-liquid-gas substances. Specifically, dust-containing gas is sucked into a machine body through negative pressure generated by a negative pressure axial flow fan, when the dust passes through a spraying area, the dust is mixed with water mist, the distribution volume of dust particles is reduced, then the dust particles are sucked into a rotary filter cartridge, and the filter cartridge is a filter screen which is of a multi-layer porous structure, facilitates gas passing and has a blocking effect on a solid-liquid mixture; and the rotary filter cartridge is a water-gas separation device and is used for further separating liquid from gas. Through reasonable matching of the negative pressure of the axial flow fan, the resistance of the filter element and the rotating speed of the roller, gas and a solid-liquid mixture can be separated, and emission of purified gas, recycling of purified liquid and collection of solid particles are achieved.

The utility model relates to an ultra-high molecular weight polyethylene fiber coating device, which comprises a treatment box, an ultrasonic nebulizer, a conveying roller, an ultrasonic vibration rod and an extrusion roller, an inlet and an outlet are respectively arranged at the front end and the rear end of the treatment box, the conveying roller is arranged outside the treatment box, and the position close to the inlet is used for conveying ultra-high molecular weight polyethylene fibers; the extrusion roller is arranged outside the treatment box and close to the outlet, and the extrusion roller is used for extruding redundant coating liquid on the ultra-high molecular weight polyethylene fiber; the ultrasonic nebulizer is arranged above the treatment box, and a spraying head of the ultrasonic nebulizer faces the interior of the treatment box; and the ultrasonic vibration rod is arranged in the treatment box and is correspondingly arranged below the spray head of the ultrasonic atomizer. According to the utility model, by adopting the design of ultrasonic atomization spraying, the resource waste and the energy cost in the coating process are reduced; and secondly, the ultrasonic vibration rod is arranged, so that the ultra-high molecular weight polyethylene fiber is more favorable for being fully combined with the coating, and the coating effect of the coating is improved.

The invention relates to the technical field of fuels, and provides an aviation composite fuel and a preparation method thereof, and the aviation composite fuel comprises carbamide, glycerol, methanol, a surfactant and a kerosene fuel. The structure of the combustion chamber does not need to be changed, and the aviation composite fuel is improved, so that the nitrogen and carbon emission of combustion is effectively reduced.

The utility model discloses a spraying system of a spraying tower, which relates to the waste gas treatment technology, and adopts the technical scheme that the spraying system comprises a tower body, a spraying pipe and a nozzle, the spraying pipe comprises a main pipe and a branch pipe, the nozzle is rotatably connected to the branch pipe, a rotating piece is arranged in the nozzle, and the nozzle is provided with an atomizing opening and a liquid flow opening. The spray head starts to rotate under the action of the rotating part, the treatment liquid in the spray head is sprayed out from the atomization opening and the liquid flow opening under the action of liquid pressure, the treatment liquid sprayed out from the liquid flow opening is large in particle diameter and can effectively combine pollutants with large diameters in waste gas, the treatment liquid sprayed out from the atomization opening is small in particle diameter, and the pollutants can be effectively combined with the pollutants with large diameters in the waste gas. The spray tower is simple in structure, large in dispersion area and longer in hang time, and can be fully combined with pollutants with smaller diameters in waste gas, and meanwhile, as the rotation of the spray head can provide centrifugal force for the treatment liquid leaving the spray head, the treatment liquid sprayed out of the atomization port and the liquid flow port can have wider coverage area, and the working efficiency of the spray tower is improved.

The utility model discloses degradable straw rotten fertilizer preparation equipment, and relates to the technical field of rotten fertilizer preparation, the degradable straw rotten fertilizer preparation equipment comprises a base, the upper surface of the base is fixedly provided with two support frames, the surfaces of the two support frames are fixedly connected with a preparation barrel, and the top of the preparation barrel is provided with a turning mechanism; an electric heating pipe is fixedly arranged on the inner wall of the preparation barrel; the pile turning mechanism comprises a limiting sleeve fixedly embedded in the upper surface of the preparation barrel. The pile turning mechanism is arranged in the preparation barrel, the driving motor drives the stirring plate at the bottom of the rotary supporting pipe to rotate and stir the interior of the preparation barrel in a reciprocating mode, meanwhile, the stirring plate can be driven to move up and down when the preparation barrel rotates and stirs, and the stirring range is widened; the turning plate can be driven to turn the straws in the preparation barrel, so that the straws are heated more uniformly, the decomposition period of the straws is shortened, and the effect of reducing energy consumption is achieved.

The utility model relates to a device for manufacturing and displaying a soil layer specimen. The device comprises a display box (1), a liquid injection assembly (2) for injecting a transparent adhesive fixing agent into the display box, and a gas extraction and injection assembly (3) for extracting or injecting gas into the display box (1), a display soil body (4) is arranged in the display box (1), the liquid injection assembly (2) comprises a grouting pipeline (21) communicated with the interior of the display box (1) and a micro grouting pipeline (22) arranged in the display soil body (4), and the gas extraction and injection assembly (3) comprises a gas pipeline (31) communicated with the interior of the display box (1). Compared with the prior art, the device has the advantages that a soil layer does not need to be remolded, and an original soil sample is directly used for manufacturing and displaying.

The invention belongs to the field of green and intelligent food packaging, and particularly relates to a preparation method of an intelligent indication film with double functions of preservation and visualization. Chitosan, curdlan and lysozyme are selected to prepare a hydrophilic single-layer antibacterial film, and zein and alkannin are selected to prepare a hydrophobic color indication film. The lysozyme is added into a mixed suspension prepared from chitosan and curdlan, so that the problems of thermal stability, pH stability, storage stability and the like of the lysozyme are solved. By adopting a coaxial electrostatic spinning technology, the alkannin is encapsulated in a shell layer formed by zein, so that lasting color development of the alkannin can be realized. Under the condition of no instrument monitoring, a consumer can directly observe the change of the color indicator with naked eyes, so that the aim of monitoring the freshness of the chilled fresh meat in real time is fulfilled.

The utility model relates to the technical field of oral medical instruments, and discloses a porous piezoelectric ceramic implant, which comprises a neck part and a porous body part with a certain piezoelectric constant, the neck part is connected with the porous body part, the neck part is provided with connecting holes, the porous body part is provided with a plurality of pores, the pores are communicated with one another, and the porous body part is provided with an external thread part. The problem that the synostosis effect is not ideal after an existing dental implant is planted is solved.

The invention discloses a preparation process for plasma high-temperature spraying of enamel in an inner cavity of a valve, which is characterized by comprising the following steps of: (1) diluting enamel glaze into a mixed solution by using water, putting the mixed solution into a storage tank, and inputting the mixed solution into the valve by using an input pipeline to be butted with a water inlet end of the valve, so that the inner cavity of the valve is filled with the mixed solution; (2) a storage tank is communicated with a plasma spray gun through a pipeline, the plasma spray gun extends into the valve from a middle through hole of the valve, the plasma spray gun is aligned to the center of the liquid level, and the plasma spray gun is started to enable part of the mixed solution to be sucked into the plasma spray gun to form jet flow; and (3) opening the water outlet end of the valve, lowering the liquid level of the mixed solution, increasing the depth of the plasma spray gun entering the valve, and stopping spraying by the plasma spray gun until the mixed solution in the valve is completely discharged. The device has the beneficial effects that jet flow of plasma injection is utilized to stimulate liquid surface vibration and cavitation of a mixed solution, and the inner cavity of the valve is promoted to be fully combined with enamel glaze.

The invention provides a leather ion piezoelectric device and a preparation method and application thereof, and belongs to the technical field of new energy conversion, the leather ion piezoelectric device comprises a device body, and two sides of the bottom of the device body are respectively provided with a stress electrode and a reference electrode; the preparation method of the leather ion piezoelectric device comprises the steps that raw hide obtained after pickling is subjected to tanning, retanning and electrolyte treatment, ion leather is obtained, the ion leather is cut, a device body is manufactured, a stress electrode and a reference electrode are attached to the two sides of the bottom of the device body respectively, and the leather ion piezoelectric device is obtained. The leather ion piezoelectric device provided by the invention has excellent mechanical property, damp-heat-resistant stability, durability and corrosion resistance, and is convenient to transport, store and reuse; the ion piezoelectric device prepared through the preparation method is good in mechanical performance and durable temperature performance, suitable for mechanical energy collection and power generation in a more complex special environment and an actual scene bearing large pressure, and wide in application range.

The invention provides anti-oxidation coated SmFeN powder as well as a coating method and application thereof. The coating method comprises the steps of material taking, material adding, ball milling, material discharging and drying which are carried out in sequence, materials related to the material taking comprise SmFeN powder prepared by a reduction diffusion method, butylated hydroxytoluene and a zirconium coupling agent, and the SmFeN powder is prepared by the reduction diffusion method; the step of feeding comprises the step of adding SmFeN powder into a ball mill; the ball milling comprises the step of adding butylated hydroxytoluene and a zirconium coupling agent into a ball mill in batches, and the concentration of the butylated hydroxytoluene in the ball-milled material in each batch is less than or equal to 0.02 wt%. The coating method provided by the invention can be used for coating fine SmFeN powder, and on the premise of ensuring the performance of SmFeN, dangers in the production process are avoided, the preparation process is simplified, the production cost is reduced, and large-scale popularization and application are facilitated.

According to the invention, the problems of complex preparation process, low embedding transmission efficiency, poor dissolution and dispersibility of xanthophyll, low absorption and utilization rate and the like of the xanthophyll embedding carrier are solved. The preparation method of the Maillard reaction modified corn peptide loaded xanthophyll nanoparticles comprises the following steps: 1, preparing a chitosan oligosaccharide solution and a corn peptide solution; 2, adjusting the pH value of the solution; 3, preparing glycosylated corn peptide through Maillard reaction; 4, carrying out load combination on the glycosylated corn peptide and the xanthophyll; and 5, preparing the xanthophyll nanoparticles. The method has the advantages that 1, the embedding rate and the solubility of the lutein are effectively improved; 2, the stability and the dispersity of the xanthophyll nanoparticles are improved; the absorption and utilization rate is good, the nutritive value is high, and large-scale production is easy. The preparation method of the xanthophyll nanoparticles is simple in process and good in xanthophyll controlled release effect and has a targeted absorption function.

The invention relates to the field of chinlon fabrics, in particular to a washable and perspiration-resistant chinlon fabric and a preparation method thereof. The preparation method of the washing-resistant and perspiration-resistant chinlon fabric comprises the following steps: step 1, dyeing chinlon gray cloth by using cloth dyeing liquid to obtain dyed cloth; step 2, carrying out color fixing treatment on the dyed cloth by using a color fixing solution, namely step 2a, feeding water into a dye vat, and adding organic acid A under the condition of 75-85 DEG C; step 2b, adding a color fixing agent, a ginkgo biloba extract, a radix scutellariae extract and a lotus leaf extract into the material obtained in the step 2a to form a color fixing solution, and carrying out color fixing treatment; step 2c, cooling and draining; and step 3, loosening, drying and shaping the fabric to obtain the washable and perspiration-resistant chinlon fabric. According to the chinlon fabric provided by the invention, the color fastness of the chinlon fabric can be effectively improved, and the requirements of consumers on washing resistance and perspiration resistance of fluorescent yoga trousers are met.