28results about How to "Improvement ingredients" patented technology

The invention provides a lithium ion battery which comprises a negative electrode and an electrolyte, the negative electrode comprises a negative electrode active material, and the negative electrode active material comprises a silicon-carbon negative electrode material; the sphericity of the silicon-carbon negative electrode material is X1, and 0.5 < = X1 < = 1; the electrolyte comprises an additive, the mass content ratio of difluoroethylene carbonate to fluoroethylene carbonate in the additive is X2, and X2 is larger than or equal to 0.1 and smaller than or equal to 1. Wherein 0.5 < = X1 / X2 < = 5. The battery disclosed by the invention can maintain high electrochemical performance and has better compatibility with a silicon-carbon negative electrode, so that the safety and the reliability of the lithium ion battery with the silicon negative electrode are remarkably improved, and the rate capability and the cycle performance of the lithium ion battery are improved.

The invention relates to a device and method for preparing a magnesium / aluminum dissimilar metal joint, and relates to the technical field of welding metallurgy technology and material scientificity, the device comprises a welding table, a plate fixing assembly, a magnetic field assembly and a welding tool, a sealing plate is arranged on the welding table in a surrounding mode, and cooling water is poured into the sealing plate; the plate fixing assembly, the magnetic field assembly and a working head of the welding tool are all located below the liquid level. Trapezoid grooves are formed in the welding positions of the magnesium alloy and the aluminum alloy and filled with mixed powder of the magnesium alloy and the aluminum alloy according to a certain proportion, and component optimization is conducted on welding seams; the welding process is carried out underwater, a copper base plate is adopted, the temperature of a weld joint area in the welding process can be rapidly reduced and dispersed, a magnetic field is applied, under the stirring effect of electromagnetic force, molten plastic flowing metal has a better mass transfer effect on the microscale, element segregation is reduced, and therefore generation of magnesium-aluminum intermetallic compounds is restrained; and the cracking behavior in the welding process is reduced, so that the strength and the preparation efficiency of the magnesium / aluminum dissimilar metal joint are improved.

The application provides a phosphogypsum-based light high-strength steel pipe concrete and a preparation method thereof, and relates to the technical field of the steel pipe concrete.The steel pipe concrete comprises the following raw materials in parts by weight: 450-500 parts of a hydraulic cementitious material, 255-272 parts of phosphogypsum light aggregate, 480-610 parts of gravel with a particle size of 4.75-19.0 mm, 708-743 parts of medium-coarse sand, 3.24-5.85 parts of a water reducing agent and 150-156 parts of water; the hydraulic cementitious material is a gypsum-slag cement containing modified phosphogypsum.The application realizes the lightness, controllable micro-expansion property and good corrosion resistance of the steel pipe concrete on the basis of ensuring the strength of the steel pipe concrete, and controls the manufacturing cost of the steel pipe concrete.

The application discloses a preparation method and application of low-protein probiotic fermented feed, relates to the technical field of fermented feed and low-protein daily ration, and comprises the following steps: S1, preparing a low-protein fermented base material, wherein the low-protein fermented base material comprises, in mass parts, 45-70 parts of cereal raw materials, 6-22 parts of plant protein by-products, 8-28 parts of bran fiber raw materials, 1-6 parts of fermentable sugar sources, 0.2-2.0 parts of mineral buffer components and 0.15-2.50 parts of amino acid balancing components, and the crude protein content of the low-protein fermented base material is controlled to be 10.0-16.5 wt% on a dry basis; and S2, performing steam conditioning or wet heat curing treatment on the low-protein fermented base material after being crushed and mixed to obtain a pretreated base material. Through the combination of the low-protein base material design and the amino acid balancing components, the crude protein content of the product is stably controlled to be 10.0-16.5 wt%, and meanwhile, the limiting amino acids such as lysine, methionine, threonine, tryptophan, valine and isoleucine are supplemented, so that the problem of amino acid mode imbalance caused by the reduction of protein raw materials is avoided.

The invention discloses a 3D printing porous medical titanium alloy and a preparation process thereof, and relates to the technical field of medical titanium alloys, and the preparation process comprises the following operation steps: S1, cleaning a 3D printing porous titanium alloy sample piece to obtain a 3D printing porous titanium alloy prefabricated piece; s2, primary micro-arc oxidation is conducted, specifically, the 3D printing porous titanium alloy prefabricated part is placed in electrolyte to be subjected to primary micro-arc oxidation, and a 3D printing porous titanium alloy prefabricated part A is obtained; s3, the 3D printing porous titanium alloy is subjected to acid treatment, and a 3D printing porous titanium alloy prefabricated part B is obtained; s4, secondary micro-arc oxidation is conducted, specifically, the 3D printing porous titanium alloy prefabricated part B is placed in electrolyte to be subjected to secondary micro-arc oxidation, and a 3D printing porous titanium alloy prefabricated part C is obtained; s5, the 3D printing porous titanium alloy prefabricated part C is cleaned; transferring into a fibroin solution, and taking out; and irradiating for 8-15 minutes under an ultraviolet lamp, cleaning and drying to obtain a finished product.

This invention provides a self-supporting nickel-iron-based heterostructure catalyst, its preparation method, and its application, belonging to the field of hydrogen production technology. The preparation method of this catalyst includes the following steps: placing nickel foam and selenium powder in the same container, heating a tube furnace to 200–350°C under an inert atmosphere, and then holding at that temperature for selenization treatment. After cooling to room temperature, the mixture is rinsed clean to obtain self-supporting Ni. x Se nanofolds; then, the self-supporting Ni x Se nanofolds were placed in a nickel-iron deposition solution and subjected to constant potential deposition to obtain Ni. x Se / NiFe-LDH heterostructured nanosheet catalyst. The preparation method of this invention is simple, rapid, and inexpensive. The prepared catalyst exhibits excellent activity, stability, and kinetic performance at high current densities, making it suitable for urea oxidation reactions.

The present invention discloses a preparation and application of a CuS@NiCo‑LDHs hollow nano-octahedron heterojunction electrocatalyst. The preparation method comprises the following steps: using a Cu2O nano-octahedron as a hard template to undergo a precipitation conversion reaction with a soluble sulfide, growing a CuS shell layer on the surface of the Cu2O nano-octahedron, and obtaining a Cu2O@CuS nano-octahedron core-shell structure intermediate; etching the Cu2O@CuS nano-octahedron core-shell structure intermediate with an inorganic strong acid to remove the Cu2O core to obtain a CuS hollow nano-octahedron; heterogeneously growing a layer of NiCo‑LDHs nanosheets on the surface of the CuS hollow nano-octahedron to obtain the CuS@NiCo‑LDHs hollow nano-octahedron heterojunction electrocatalyst. The preparation method of the present invention is simple, the raw materials are abundant and easy to obtain, the time-consuming cycle is short, the product has high catalytic activity and good stability, and can be used for alkaline electrocatalytic oxygen evolution reaction.

The present invention discloses a machine learning method for mechanical properties of hot-rolled steel guided by physical metallurgy, which belongs to the intersection of steel plate production and data statistical modeling, including: collecting hot-rolled steel plate data and preprocessing the data; calculating physical metallurgical parameters based on steel plate data and physical metallurgy theory; optimizing mechanical properties calculation model parameters using particle swarm optimization algorithm, and constructing a mechanical properties prediction model. The present invention adopts the above-mentioned machine learning method for mechanical properties of hot-rolled steel guided by physical metallurgy, builds a high-quality data set, selects the optimal algorithm modeling to predict mechanical properties, and guides steel plate production.

The invention discloses an aluminum alloy surface high-hardness high-binding-force low-brittleness ceramic coating and a preparation method, and relates to the field of aerospace light metal material surface hard coatings, the preparation method comprises the steps that a Ti-Al transition layer and a Ti transition layer are sequentially deposited on the surface of an aluminum alloy matrix through physical vapor deposition, and an intermediate is obtained; and carrying out laser nitriding treatment on the intermediate to obtain a laser nitriding sample. A hardened layer with high hardness, high binding force and low brittleness can be formed on the surface of the aluminum alloy, the problems that the surface of an aluminum alloy base material is low in hardness, poor in wear resistance and the like can be remarkably solved, the coating has low surface roughness, and the application range of the aluminum alloy existing in light-weight precision components such as aerospace motion mechanisms is widened.

The invention belongs to the technical field of dairy product detection, and particularly relates to application of a biomarker detection reagent in preparation of a product for identifying authenticity of dairy products. The dairy product is sheep milk, goat milk and / or milk, and the biomarkers are APOH protein, ANPEP protein, A1BG protein, FGA protein, ANG1 protein and SERPING1 protein. The APOH protein and the ANPEP protein are biomarkers for identifying sheep milk, the A1BG protein and the FGA protein are biomarkers for identifying goat milk, and the ANG1 protein and the SERPING1 protein are biomarkers for identifying milk. The research of the invention is helpful for improving the understanding of consumers on the components and functions of various dairy products, and provides a significant theoretical basis for the high-quality development of professional dairy products. In addition, the method can promote establishment of a method for identifying adulteration of dairy products, so that a major challenge faced by the global dairy product industry is supported.

To improve the emission efficiency of ultraviolet light emitting diodes in the Far-UVC wavelength range, the ultraviolet light emitting diode 100A in the embodiment of the present disclosure has an AIGaN-based crystal or an InAIGaN-based crystal, and comprises an light emitting layer 134, a spacer layer 136A, an electron blocking layer 138 in this order along the electron flow, wherein the Al composition ratio in the spacer layer varies along the position in the thickness direction of the layers. Simultaneously or optionally, the ultraviolet light emitting diode of the embodiment of the present disclosure is provided with the emitting layer 134 comprising at least one barrier layer 13B and at least two quantum well layers 13W sandwiching the barrier layer, wherein the barrier layer is configured as a thinned layer.

This invention relates to the field of deep processing technology of white hyacinth bean, specifically to a method for preparing a compound spleen-strengthening and dampness-removing white hyacinth bean paste. This invention utilizes low-temperature roasting to pretreat a specific ratio of dampness-removing medicinal herbs, including licorice, poria cocos, coix seed, and bitter almond, and prepares a compound decoction rich in dampness-removing components. This decoction is then used as a biological stressor to promote the germination of white hyacinth beans, with its concentration controlled to encourage moderate germination and the production of substances that resist adverse conditions. Simultaneously, leveraging the plant's water absorption capacity during germination, the invention incorporates the dampness-removing components of the compound decoction. Stable solid-state fermentation with pure Rhizopus further enhances the dampness-removing components of the compound white hyacinth bean and fermented soybean. This not only increases the content of major dampness-removing components such as polyphenols, proteins, and polysaccharides in the white hyacinth bean and fermented soybean, but also increases the content of trace dampness-removing substances such as rutin, quercetin, kaempferol, luteolin, and picolinic acid. It also promotes the dissolution of dampness-removing amino acids—alanine and glycine. The dampness-removing compound white hyacinth bean and fermented soybean components are clearly defined, and the content of spleen-strengthening and dampness-removing substances is richer.

The invention discloses a friction coating high-temperature-resistant high-entropy alloy coating preparation device and method, and belongs to the technical field of high-entropy alloy coating preparation. The device comprises a coating friction coating part and a feeding part, the coating friction coating part comprises a discharging barrel, a coating head, a motor, a threaded conveying rod, a material plasticizing device and a cooling protection device, and the feeding part comprises a feeding hopper and a conveying pipe and is connected with the discharging barrel through the conveying pipe. Through integrated design, the device can be used for preparing the high-entropy alloy coating after the preparation steps of device connection inspection, operation stability inspection, feeding and the like. The device can be used for preparing a single high-entropy alloy coating, a component gradient high-entropy alloy coating and a composite high-entropy alloy coating.

The utility model relates to the technical field of feed processing, and discloses a concentrated feed ingredient scattering device which comprises a box body, and a scattering mechanism, a blocking mechanism and a screening mechanism are respectively arranged on the box body. Feed enters the scattering barrel through the feeding hopper, in the entering process, the feed is evenly scattered through the conical flow dividing block, the feed makes more sufficient contact with the scattering component, the motor is started to drive the rotating shaft to rotate, the two rows of scattering cutters and the multiple scattering plates on the rotating shaft cut, impact and stir the feed, and therefore the feed can be scattered more thoroughly. The scattering knife is responsible for chopping large feed particles, so that materials are crushed and scattered under the action of impact force, the scattering plate further stirs and disperses the feed, the contact area of the feed and the scattering component is increased, the scattering effect is improved, it is ensured that the feed is fully scattered, and subsequent batching and processing are facilitated.

The invention relates to a corrosion-resistant magnetically soft alloy, in particular to a high-chromium high-plasticity corrosion-resistant magnetically soft alloy and a preparation method of a bar of the high-chromium high-plasticity corrosion-resistant magnetically soft alloy. Comprising the following steps: proportioning: weighing 2.2-2.8% by weight of silicon and 0.3-0.6% by weight of manganese as alloying raw materials; the method comprises the following steps: weighing 0.005 to 0.008 percent of carbon and 0.8 to 1.2 percent of aluminum as a deoxidizing and desulfurizing agent; 19.0-21.0% of chromium and the balance iron are weighed to serve as smelting raw materials; and vacuum melting, molten steel deoxidation, desulfurization and alloying, primary forging, secondary forging and heat treatment are conducted, and the high-chromium high-plasticity corrosion-resistant magnetically soft alloy bar is manufactured after heat treatment is completed. By increasing the content of chromium in the corrosion-resistant magnetically soft alloy and introducing the aluminum element, the corrosion resistance, plasticity, resistivity and magnetic performance of the corrosion-resistant magnetically soft alloy are improved.

The invention relates to the technical field of diaphragms, in particular to a composite diaphragm as well as a preparation method and application thereof. According to the preparation method of the composite diaphragm, a glass fiber diaphragm is coated with a layer of aluminum through magnetron sputtering, then treatment is carried out in plasma through fluorine-containing gas, an aluminum-aluminum oxide-aluminum fluoride composite coating layer is formed on the glass fiber diaphragm, and the composite diaphragm is obtained. The AlF3 component is additionally introduced to the glass fiber diaphragm, so that the components of a potassium metal negative electrode interface SEI layer are improved, the ion transmission rate is increased, the ion concentration distribution is improved, dendritic crystal growth is inhibited, and long-acting stable circulation of the battery is realized.

The present invention belongs to the technical field of metal material processing, and specifically relates to a high-strength and high-conductivity Al-Mg-Si alloy containing AlFeCrCoCu and a preparation method. The composition of the alloy in terms of mass percentage is Mg: 0.4-0.8%, Si: 0.2-0.6%, high entropy alloy AlFeCrCoCu: 0.1-0.3%, and the rest is Al and inevitable impurity elements. The method for preparing the alloy is: casting-solid solution treatment-equal channel angular extrusion-low temperature rolling-aging treatment, and the obtained Al-Mg-Si alloy has high strength and good conductivity, which solves the problem that the strength and conductivity of aluminum alloys are contradictory and cannot be obtained at the same time. The Al-Mg-Si alloy prepared by the present invention has a tensile strength of up to 386MPa and a conductivity of 58.14%IACS, and has relatively excellent comprehensive performance.

The present invention relates to an aluminum alloy composite material for brazing, comprising: a core material layer, a first brazing layer, and a first intermediate layer, wherein the first intermediate layer is located between the core material layer and the first brazing layer. In the aluminum alloy composite material for brazing of the present invention, the raw material of the core material layer may contain more than 50% by weight of waste based on the weight of the raw material of the core material layer. The composite material of the present invention has high strength and corrosion resistance, and a large amount of post-consumer waste and process waste can be used in the preparation process, which can achieve green and sustainable development, can significantly reduce carbon emissions, and create conditions for achieving the dual carbon strategy.

Provided are a light-emitting device, a light-emitting module, and a method for manufacturing a light-emitting device, a light-emitting device with an increased light extraction amount, etc. The light-emitting device comprises: a light-transmitting adhesive component that continuously covers the second principal surface side and the third principal surface of the first side surface; a first light-reflecting component that covers the first side surface provided with the light-transmitting adhesive component and has a third side surface around it, the first light-reflecting component contains a first filler with light reflectivity, the distance between the third side surfaces on the cross section in the direction perpendicular to the second principal surface is smaller than the distance between the second side surfaces on the fourth principal surface side of the second side surface, a wavelength conversion component forms a first inclined surface inclined from the plane of the second side surface in an area close to the third principal surface of the second side surface, and the wavelength conversion component has light-reflecting particles attached to the surface of the first inclined surface that reflect light emitted by the light-emitting element.

The invention discloses a CrMnTi gear steel and a production method thereof, belonging to the field of gear steel bar steel. The gear steel comprises: C: 0.18%-0.22%, Si: 0.20%-0.30%, Mn: 0.90%-1.10%, S: 0.010%-0.020%, Cr: 1.00%-1.20%, Mo: 0.10%-0.20%, Ti: 0.040%-0.065%, Al: 0.020%-0.040%, B: 0.0020%-0.0040%, N: 0.010%-0.016%, Mg: 0.0035%-0.0065%, Ca: 0.0040%-0.0080%, and the balance is Fe and unavoidable impurities. The gear steel of the invention has good machinability.

The present application relates to a high-precision batching device for ceramsite raw materials, comprising a clay mixer and a feeding device, wherein the feeding device comprises a first feeding mechanism for conveying clay and sludge filter cakes, a second feeding mechanism for conveying sludge, a third feeding mechanism for conveying powder, and a fourth feeding mechanism for conveying water, wherein the second feeding mechanism and the fourth feeding mechanism are provided with flow meters, the third feeding mechanism is provided with a metering bucket, and the first feeding mechanism comprises a belt scale, which is inclined and has one end at a high position at a feed inlet of the clay mixer; thereby, automatic feeding of each raw material is realized, and at the same time, each raw material is quantitatively measured in a corresponding appropriate manner, so as to achieve convenient batching and effectively improve batching accuracy.

The invention provides a wild-imitating cultivation method for cremastra appendiculata, and belongs to the technical field of orchid plant cultivation. The method comprises the specific steps that wood blocks are treated and laid, and water numbness wood blocks are laid on ridge surfaces; seed treatment and sowing, wherein seeds and wet debregeasia edulis wood chips are mixed and then sown; spreading rotted leaves, namely spreading dried beancurd stick leaves after sowing; and field management. Wherein the cremastra appendiculata can be cultivated in a potting or land mode. According to the wild-imitating cultivation method for the cremastra appendiculata provided by the invention, the water numbness wood blocks and the dried beancurd stick leaves are provided to construct the bionic microhabitat, the water numbness wood blocks provide a natural host environment for symbiotic fungi, the dried beancurd stick leaves release rich organic matters after being decomposed and maintain soil humidity, and efficient planting is realized through the construction of the bionic microhabitat without additional associated fungus bags; the cultivation cost is obviously reduced.

The present application provides a peptide for cartilage regeneration and use thereof. The present application relates to a peptide having a cartilage regeneration effect and use thereof, and provides a peptide consisting of the amino acid sequence of SEQ ID NO: 1 or SEQ ID NO: 2, a composition for cartilage regeneration including the same, and a pharmaceutical composition for preventing or treating a cartilage disease, including the composition for cartilage regeneration as an effective ingredient.

The application discloses a method for simultaneously detecting caffeic acid and rosmarinic acid in prunella vulgaris or its glucoside extract and application thereof. The method simultaneously qualitatively identifies the caffeic acid and the rosmarinic acid in the prunella vulgaris or its glucoside extract by using a thin layer chromatography method; the caffeic acid and the rosmarinic acid are directly extracted by using a specific polar solvent extraction method, and then the content of the caffeic acid and the rosmarinic acid in the prunella vulgaris or its glucoside extract is simultaneously determined by using a high performance liquid chromatography method, with the mixed caffeic acid and rosmarinic acid reference substance as a control. The method has the advantages of high accuracy and precision, good stability and repeatability, and overcomes the complicated HPLC gradient elution method required for simultaneously detecting the caffeic acid and the rosmarinic acid in the prunella vulgaris in the past, and improves the accuracy and reproducibility of the determination. The application firstly finds that the content of the caffeic acid component with the glucoside effect in the preparation of the glucoside extract of the prunella vulgaris is significantly improved, and the corresponding prunella vulgaris conversion content is improved by more than one time.

The invention provides a composition for constipation and a preparation method and application thereof.The composition is prepared from 130-140 parts of pumpkin powder, 30-35 parts of poria cocos powder, 40-50 parts of tremella powder, 80-90 parts of aloe powder and 80-90 parts of prebiotics. The preparation method of the composition for constipation comprises the following steps that 1, the pumpkin powder is prepared; step 2, preparing poria cocos powder; step 3, preparing tremella powder; step 4, preparing aloe powder; step 5, preparing the composition for treating constipation; uniformly mixing the pumpkin powder, the poria cocos powder, the tremella powder, the aloe powder and the prebiotics prepared in the steps 1-5 to prepare capsules, so as to obtain the composition for treating constipation. Through advanced processes of supercritical extraction, vacuum freeze drying, superfine grinding and the like, effective components in raw materials such as pumpkins, poria cocos, tremella fuciformis and aloe can be extracted and reserved to the maximum extent, and the pumpkin-poria cocos-aloe powder is suitable for being eaten for a long time.

The invention discloses a high-strength and high-modulus rare earth aluminum alloy suitable for additive manufacturing and a preparation method of the high-strength and high-modulus rare earth aluminum alloy, and aims at high requirements on high strength and high modulus in the field of aerospace. According to the aluminum alloy, by reasonably designing the contents of Cu and Mg and microalloying elements Ce, La, Zr and Cr, the strength and modulus of the material are improved, the forming performance of additive manufacturing is improved, and the aluminum alloy is more suitable for additive manufacturing. Special powder suitable for additive manufacturing is prepared through vacuum melting and gas atomization, and the aluminum alloy is formed through the laser additive manufacturing technology. The result shows that the grain size of the alloy is obviously refined, the strength and modulus are greatly improved, and the development requirements of the aerospace field can be better met. The composition is reasonable in design, the preparation process is simple, the obtained product is excellent in performance, and large-scale industrial production and practical application are facilitated.

The application belongs to the field of plant culture, and specifically discloses a tobacco sterile seedling cultivation method, which comprises the following steps: placing dry compressed Jiffy-7 substrate blocks into transparent culture boxes, and adding newly prepared 1 / 2 modified LS nutrient solution into the culture boxes; transferring the prepared culture boxes into a transparent plastic incubator and sequentially placing the culture boxes; incompletely closing the cover of the incubator, and opening a circular hole with a diameter of 5-10 cm in the middle of the cover of the incubator, and sticking a filter membrane larger than the diameter of the circular hole on the cover, etc. Through the technical scheme of the application, the sterile tobacco seedling cultivation method is formed, and sterile tobacco seedlings are successfully cultivated, which can provide experimental conditions for revealing the mechanism of the interaction between tobacco and microbial communities in the research on the interaction between tobacco and microbial communities under greenhouse conditions.

This invention discloses a stepwise thermal control method for improving the process and performance of laser additive manufacturing of nickel-based superalloys. It is based on a dual-laser additive manufacturing process, which includes a first laser and a second laser beam. During the printing process, for each printed layer, the first laser beam is first applied at 20 J / mm². 3 -40 J / mm 3 A low-energy-density laser preheats and partially melts the alloy powder layer on the substrate to optimize its adhesion and improve its stability. A second laser beam at 70 J / mm² is then used. 3 -110 J / mm 3 The high unit volume laser energy density completely melts the alloy powder layer; the alloy powder layer uses nickel-based high-temperature alloy powder. Therefore, this invention can suppress the burn-off of key elements (such as Al, Cr, Nb, etc.) in the alloy powder layer during the melting stage, achieving precise control of component composition and improving surface quality and dimensional accuracy.