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2788results about How to "Easy to make" patented technology

Novel preparation method of solid electrolyte with high ionic conductivity

The invention belongs to the technical field of solid electrolyte materials, and particularly relates to a novel preparation method of a solid electrolyte with high ionic conductivity. The lithium source, the lanthanum source, the niobium source and the fluorine source are mixed, and the solid-phase dispersing agent is added in the mixing process, so that more uniform mixing is facilitated. According to the preparation method, precursor powder is obtained after mixing, then pure-phase LLNOF powder can be directly obtained through one-step sintering, the difficulty that in an existing reported preparation process scheme, a product obtained through two-step sintering has an impure phase is overcome, the preparation process is simple, and batch production and industrialization are facilitated.
Owner:NORTHEASTERN UNIV CHINA

CO2 thickening agent for supercritical CO2 oil displacement and preparation method thereof

The invention belongs to the technical field of oil and gas field development, and particularly relates to a CO2 thickening agent for supercritical CO2 oil displacement and a preparation method of the CO2 thickening agent. The preparation method of the CO2 thickening agent for supercritical CO2 oil displacement comprises the following steps: (1) mixing a maleic anhydride compound and a styrene compound, dissolving in water, introducing inert gas, and heating; (2) slowly dropwise adding a mixed solution of a vinyl acetate compound and an initiator, and cooling after the reaction is finished; and (3) filtering, washing a solid phase by using an anhydrous alcohol substance, drying, and grinding to obtain a thickening agent product. The supercritical CO2 thickened by the thickening agent prepared by the invention can effectively slow down the viscous fingering phenomenon in the displacement process and improve the CO2 sweep efficiency, thereby improving the crude oil recovery rate.
Owner:CHINA OILFIELD SERVICES LTD

CT system bulb tube position calibration method and device

The invention discloses a CT system bulb tube position calibration method and device, and relates to the technical field of CT system scanning, and the method comprises the steps: obtaining projection data of a shielding sheet projected on a detector when a rack rotates; calculating the projection gravity center of the shielding sheet window on the detector, and calculating the projection coordinate of the rotation center in the two-dimensional coordinate system of the detector through the projection gravity centers at different exposure angles; and establishing a conversion relation between a three-dimensional coordinate system of the shielding sheet and a two-dimensional coordinate system of the detector, solving a conversion relation parameter, namely a projection coordinate of a bulb tube focus in the two-dimensional coordinate system of the detector, through a corresponding relation between the size of the shielding sheet and projection data, and further solving a calibration amount for calibration. The model body is easy to manufacture, the calibration amount in the X direction and the calibration amount in the Z direction can be calculated at the same time through one-time scanning, the method is suitable for all rack-mounted CT systems, the limitation that the calibration process is tedious and multiple times of adjustment are needed is avoided, actual operation is easy to achieve, and cost is low.
Owner:BEIJING FUTONG KANGYING MEDICAL TECHNOLOGY CO LTD

Preparation method of biochar-loaded bimetallic MnFeO2 heterogeneous Fenton-like catalyst

The invention discloses a preparation method and application of a biochar-loaded bimetal MnFeO2 heterogeneous Fenton-like catalyst, the biochar-loaded bimetal MnFeO2 heterogeneous Fenton-like catalyst comprises a substrate biochar particle and a MnFeO2 catalyst loaded on the substrate, MnFeO2 in the biochar-particle-loaded MnFeO2 catalyst is a catalyst, the catalyst can effectively inhibit metal leaching toxicity through a bimetal synergistic effect, and the biochar-loaded bimetal MnFeO2 heterogeneous Fenton-like catalyst can effectively inhibit metal leaching toxicity. The electron transfer capacity of the catalyst is improved through combination of bimetal and biochar, so that the metal valence cycle speed is increased, and the material is good in stability, reusable, low in price and preparation cost, wide in applicable pH range and wide in application prospect in the field of water treatment.
Owner:QINGDAO AGRI UNIV

Self-assembled low-crystallization nano flower-shaped polyoxometallate catalyst as well as preparation method and application thereof

The invention relates to the technical field of energy materials, and discloses a self-assembled low-crystallization nanoflower-shaped polyoxometallate catalyst and a preparation method and application thereof.The preparation method comprises the steps that firstly, cobalt nitrate hexahydrate, iron nitrate nonahydrate, CH4N2O and Finke Co are used as raw materials, Finke Co and Fe < 3 + > are grown on nickel foam in situ, then the Finke Co and Fe < 3 + > react with ZIF-67 (Co), and a Finke Co-FeCoNi precursor with a stable structure is prepared; finally, the precursor is subjected to vulcanization, and the nano flower-shaped polyoxometallate catalyst Finke Co-FeCoNi / S is obtained. According to the preparation method, Finke Co is added, so that the crystallinity of the catalyst material is reduced, the catalyst material is assembled into a nanoflower-shaped structure, the low crystallinity can provide more coordinated unsaturated sites and improve the conductivity, and the nanoflower-shaped form exposes more defect sites, so that the reaction contact area is increased, and the catalytic activity is improved.
Owner:INNER MONGOLIA UNIVERSITY +1

Glucose response type insulin delivery system as well as preparation method and application thereof

The invention discloses a glucose response type insulin delivery system as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The glucose response type insulin delivery system provided by the invention comprises a delivery carrier and a bioactive component encapsulated in the carrier, the delivery carrier is a metal polyphenol network formed by carrying out coordination reaction on epigallocatechin gallate and metal ions; the bioactive components comprise glucose oxidase, catalase and insulin. The glucose response type insulin delivery system provided by the invention can adjust the release of insulin according to the concentration of glucose in the surrounding environment, so that the blood glucose is maintained at a normal level.
Owner:ZHEJIANG UNIV +1

Rimetirol 1, 4-dioxane solvent compound and preparation method thereof

The invention provides a solvent compound crystal which is formed by rosmeltirol and a 1, 4-dioxane solvent, and the molecular formula of the solvent compound crystal is C17H12Cl2N6O4.C4H8O2. The preparation process of the crystal form is simple, the operation is simple and convenient, the quality index of the obtained crystal form is basically kept unchanged in a stability acceleration experiment, the crystal form has good stability and is easy to store in the production circulation process, a good choice is provided for preparation of a medicinal preparation of the crystal form, and the crystal form has very important significance for medicine development.
Owner:HANGZHOU CHEMINSPIRE TECH CO LTD

Geopolymer regenerated fireproof mortar based on porous light filler and preparation method of geopolymer regenerated fireproof mortar

PendingCN119306435Alow thermal conductivityImprove initial strengthMicrosphereGeopolymer mortar
The invention discloses geopolymer regenerated fireproof mortar based on porous light filler and a preparation method of the geopolymer regenerated fireproof mortar. The fireproof mortar is prepared from the following raw materials: 460 to 520 parts of cementing material, 210 to 360 parts of porous light filler, 330 to 380 parts of alkali activator, 120 to 500 parts of regenerated fine aggregate and 180 to 280 parts of water, the porous light filler is preferably selected from fly ash hollow microspheres. The preparation method comprises the following steps: uniformly mixing the cementing material, the porous light filler and the recycled fine aggregate to obtain a dry mixture; and adding an alkali activator into the dry mixture to obtain the geopolymer regenerated fireproof mortar. And after the age is reached, demolding and curing are carried out. By utilizing the characteristics of high porosity, low heat conductivity coefficient and the like of the porous light filler, the heat preservation and heat insulation capabilities of the geopolymer regenerated mortar are improved, the fireproof performance of the geopolymer mortar is greatly improved, and meanwhile, the resource utilization of solid wastes is realized.
Owner:CHANGZHOU UNIV

Lignite-based supercapacitor active carbon electrode material and preparation method thereof

The invention provides a lignite-based supercapacitor activated carbon electrode material and a preparation method thereof, and belongs to the technical field of electrochemical power supply material preparation. The preparation method comprises the following steps: S1, performing hydrochloric acid pickling on lignite raw coal powder for X2 hours, performing hydrofluoric acid pickling for X2 hours, and heating a calcium phosphate solution for deoxidation to obtain pretreated lignite; s2, uniformly stirring and mixing the pretreated lignite, an alkaline activator and deionized water according to the mass ratio of 1: X4: (5-10) to obtain a mixture; s3, activation is conducted, the activation temperature is X1 DEG C, and the activation time is X3 h; cooling to obtain a roasted product; s4, acid pickling with diluted hydrochloric acid; the specific capacitance of the active carbon electrode material is Y F / g, wherein Y = a + b * X1 + c * X2 + d * X3 + e * X4-f * X1 * X2 + g * X1 * X3 + h * X1 * X4 + i * X2 * X3 + j * X2 * X4 + k * X3 * X4-l * X12-m * X22-n * X32-o * X42. The preparation method is simple, the cost is low, the process repeatability is good, the prepared porous carbon has a high specific surface area, and the power density and the cycling stability of the supercapacitor are improved.
Owner:NORTHEASTERN UNIV AT QINHUANGDAO

Preparation method of ceramic particle reinforced high-temperature alloy wear-resistant coating of boiler water-cooled tube

The invention discloses a preparation method of a ceramic particle reinforced high-temperature alloy wear-resistant coating of a boiler water-cooled tube. The preparation method comprises the following steps: carrying out roughening treatment on a matrix; the prepared NiCr powder and ZrB2 powder are subjected to high-energy ball milling and mixing, drying is conducted after treatment, and dried NiCr-based composite powder is obtained; niCr-based composite powder is sprayed through atmospheric plasma, and a composite coating with the thickness ranging from 200 micrometers to 300 micrometers is deposited on the roughened surface of the base body; the composite coating is subjected to remelting treatment, and a remelting coating is formed on the surface of the base body; wherein the matrix is 304 stainless steel, and the composition proportions of the NiCr powder and the ZrB2 powder are as follows: 80-99 wt% of NiCr and 1-20 wt% of ZrB2 respectively; by means of the method, the wear resistance of the coating is remarkably improved, and controllable deposition of the high-performance ceramic particle reinforced high-temperature alloy wear-resistant coating is achieved.
Owner:YANGZHOU UNIV

Brewing device of large-dose coffee machine

The utility model relates to a brewing device of a large-dose coffee machine, which is designed for solving the technical problems that the brewing device of the existing similar coffee machine product is not good enough in structural design, so that the production and the assembly are more inconvenient, the liquid pressing one-way powder pressing is less adopted, the volume of a brewing cavity is smaller, and the coffee brewing mode is more single. The brewing device is characterized in that a hydraulic combination of the brewing device is fixedly arranged in a screw rod, an external thread of the outer diameter of the screw rod is meshed with an internal thread of the inner diameter of a bevel gear, and at least one side of the outer diameter of the bevel gear extends out of an outer gear ring of the hydraulic combination to be meshed with a small gear at a motor shaft of a second motor; a hydraulic connecting hole is formed in the top of the liquid outlet channel of the sealing seat; a residue ejecting push rod is arranged in an end corner groove of a main body below the brewing cavity, a push rod head at one end of the residue ejecting push rod extends into the powder pressing combination and is inserted into a rod hole in the tail end of a rod part at one end of a brewing cavity push rod extending out of the bottom of the brewing cavity connected into the powder pressing combination, and the push rod spring is arranged on the outer diameter of the rod part at the end.
Owner:SHENZHEN SHANGKENINGJIA TECH CO LTD

Method for preparing pyroglutamic acid tigorasone

The invention discloses a method for preparing tegorasone pyroglutamate, and the prepared tegorasone pyroglutamate product has the advantages of reduced residual solvent content, good stability, and facilitation of the improvement of the product quality and the guarantee of the medication safety. The preparation method is simple and rapid in preparation process, beneficial to saving of production cost and suitable for industrial production.
Owner:SHANDONG LUOXIN PHARMA GRP CO LTD +2

Method for preparing anisotropic samarium-iron-nitrogen magnetic powder

The invention discloses a method for preparing anisotropic samarium-iron-nitrogen magnetic powder, and belongs to the technical field of magnetic materials, the method comprises the following steps: preparing Sm and Fe according to design components, and smelting to obtain samarium-iron alloy molten steel; casting the samarium-iron alloy molten steel onto a cooling roller to obtain an iron-samarium alloy sheet; the iron-samarium alloy sheet is placed in a vacuum heat treatment furnace to be subjected to homogenization treatment, the alloy sheet obtained after homogenization treatment is cooled to 200-300 DEG C, in the vacuum environment, hydrogen is introduced into the furnace, the absolute pressure of the hydrogen is controlled to be 0.05-0.1 MPa, and hydrogenation treatment is conducted for 2 h; after hydrogenation is completed, the temperature is increased to 400 DEG C, nitrogen is introduced to 0.5 MPa, the temperature is increased to 530 DEG C, then the furnace temperature is reduced to the room temperature, and the anisotropic samarium-iron-nitrogen magnetic powder is obtained.The preparation method of the samarium-iron-nitrogen magnetic powder has the advantages of being simple in preparation process, low in energy consumption, high in production efficiency, small in magnetic powder particle size, high in magnetic performance and good in magnetocrystalline anisotropy.
Owner:ANHUI UNIV +1

Lateral transceiving integrated optical fiber ultrasonic endoscope and preparation method

ActiveCN119587077Asmall sizeincrease sound pressureSurgeryEndoscopesFocus ultrasoundFiber
The invention discloses a lateral transceiving integrated optical fiber ultrasonic endoscope and a preparation method, and belongs to the field of ultrasonic endoscopic imaging. Comprising a double-clad optical fiber, an excitation film, a dielectric mirror and a sensing film. A part of the inner cladding of the optical fiber is etched into a concave spherical surface and coated with an excitation film, excitation light transmitted in the inner cladding is absorbed, and focused ultrasonic waves transmitted in the lateral direction are excited. A part of an inner cladding layer and a fiber core of the optical fiber are etched, and a Fabry-Perot (Fabry-Perot, F-P) cavity is prepared. When an ultrasonic signal laterally transmitted into the ultrasonic endoscope acts on the sensing film of the cavity, the effective refractive index and the F-P cavity length of the sensing film are changed, and the change is demodulated through signal light in the fiber core to complete ultrasonic detection. According to the lateral transmitting-receiving integrated optical fiber ultrasonic endoscope, the inner cladding is etched and coated with the excitation thin film to excite laterally focused ultrasonic waves, an F-P cavity is formed through lateral etching of the optical fiber to achieve lateral ultrasonic detection, and the lateral transmitting-receiving integrated optical fiber ultrasonic endoscope is formed.
Owner:SHENZHEN QIZHEN OPTOELECTRONICS TECHNOLOGY CO LTD

Bacterial surface modification method based on atom transfer radical polymerization reaction mediation, modified bacteria and application of modified bacteria

The invention discloses a bacteria surface modification method based on atom transfer radical polymerization reaction mediation, obtained bacteria and application. The modification method comprises the following steps: carrying out acryloylation on the surfaces of the bacteria by using N-hydroxysuccinimide acrylate, and introducing double bonds on the surfaces of the bacteria to obtain acryloylated bacteria; the method comprises the following steps: by taking acrylamide, N-(3-aminopropyl) methacrylamide hydrochloride and N, N '-methylene bisacrylamide as monomers, carrying out polymerization reaction on the surfaces of acrylated bacteria in the presence of an initiator and a catalyst; the mass ratio of the acrylamide to the N-(3-aminopropyl) methacrylamide hydrochloride to the N, N '-methylene bisacrylamide is (11.9 to 17.5) to (0.125 to 1) to (0.1 to 0.5). According to the method, bacteria can be camouflaged to reduce immunogenicity and pathogenicity of the bacteria, the safety of bacteria treatment is improved under the condition that the viability and multiplication capacity of the bacteria are not affected, the resistance of the bacteria to environmental threats is enhanced, and the bacteria are endowed with no exogenous functions.
Owner:ANHUI MEDICAL UNIV

Animal adipose tissue simulant prepared from soybean protein and application of animal adipose tissue simulant

The invention discloses a method for preparing an animal adipose tissue simulant by using soybean protein and application of the animal adipose tissue simulant, and belongs to the technical field of deep processing of vegetable protein. Soybean protein is used as a raw material, the soybean protein and polysaccharide are compounded and heated to form thermal induction gel, then microgel particles are obtained through mechanical shearing and crushing, and recombinant soybean protein emulsion gel, namely the animal adipose tissue simulant, is prepared through vegetable oil emulsification and glutamine transaminase covalent cross-linking. The fat-reducing sausage is used as a substitute of pig back fat and is applied to development of fat-reducing sausages. The animal adipose tissue simulant prepared by the invention has texture and melting characteristics similar to those of animal pig back fat. The invention provides the preparation method of the plant-based fat simulant, which meets the requirements of environmental protection and health and sustainable production, not only meets the requirements of texture and melting characteristics of solid fat, but also provides technical support for high-value application of soybean protein in the field of plant meat foods.
Owner:JIANGNAN UNIV

Polyvinylidene fluoride-based nanofiber yarn wave-absorbing fabric as well as preparation method and application thereof

The invention provides a polyvinylidene fluoride-based nanofiber yarn wave-absorbing fabric as well as a preparation method and application thereof, and belongs to the technical field of preparation of wave-absorbing composite materials. The preparation method comprises the following steps: preparing nanofiber yarns or nanofiber core-spun yarns by adopting a conjugate electrostatic spinning technology, directly adding a conductive substance into a spinning solution to form conductive nanofibers, and further coating the nanofiber yarns or the nanofiber core-spun yarns with a PDA shell layer to improve the wear resistance and reduce silver nanoparticles in situ; finally, the yarns are woven into fabric through a weaving or knitting technology, and the fabric is applied to the fields of buildings, electromagnetic protective clothing, flexible electronics and the like. Compared with an existing microwave absorbing material, the fabric-based material is light in weight and good in mechanical flexibility and processability. Fabrics formed of nanofiber yarns or nanofiber core spun yarns facilitate the induction of interfacial polarization and multiple reflections, and can deeply design material properties. The material provided by the invention has better wear resistance, wearability and microwave absorption performance, and is suitable for actual production and application.
Owner:DONGHUA UNIV

Route generation method and system based on multi-modal large model and storage medium

The invention relates to the technical field of intelligent route generation, in particular to a multi-modal large model-based route generation method and system and a storage medium, and the multi-modal large model-based route generation method provided by the invention comprises the following steps: extracting target information corresponding to an obtained webpage link; a target webpage corresponding to the webpage link comprises tourism information of at least two geographic points; determining description information and geographic information corresponding to all target geographic points in the target information based on a multi-modal large model; performing structured processing on the description information and the geographic information of all the target geographic points to obtain structured information; and automatically generating an editable route according to the structured information based on the multi-modal large model, and generating a route text representation and / or a route audio representation of the editable route. The webpage content corresponding to the webpage link is extracted and processed through the multi-modal large model, so that the tourism route of the place where the user wants to go is made by directly utilizing the tourism strategy on the platform.
Owner:DINGMAI (SHENZHEN) INFORMATION TECHNOLOGY CO LTD

Detachable reactor based on biochar

The detachable reactor comprises a water supply pipe, a communicating pipe and a plurality of barrel sets, each barrel set is formed by splicing a top cover, an upper barrel, an upper grating net, a main barrel, a lower grating net, a lower barrel and a bottom cover, and the bottom cover is connected with a water inlet pipe, a water drainage pipe and a series connection pipe through a first reversing valve; the top cover is provided with a water outlet pipe with a valve and flushing pipes, the water supply pipe is provided with a water supply pump and a box body, the box body is provided with a sewage pipe and a dosing mechanism, the communicating pipe is communicated with the series connection pipes and the flushing pipes and provided with a second reversing valve, inner cavities of the upper cylinder and the lower cylinder are filled with filter materials, and an inner cavity of the main cylinder is filled with catalytic filler. Sewage is filtered and catalytically decomposed by using the filter material and the catalytic filler in the cylinder group, the cylinder group is convenient to disassemble for cleaning and replacement, and series connection, parallel connection and backwashing work of the plurality of cylinder groups can be realized through cooperation of each pipeline and each valve, so that the sewage treatment effect is ensured, and the sewage treatment efficiency is improved.
Owner:长江三峡(海南)绿色发展投资有限公司

Silicon-containing composition for processing chlorine-containing polyolefin material and preparation method thereof

The invention relates to the technical field of material processing, and discloses a silicon-containing composition for processing a chlorine-containing polyolefin material and a preparation method, which are used for solving the problems of processing and extrusion of the chlorine-containing polyolefin composite material. The invention relates to a silicon-containing composition for processing a chlorine-containing polyolefin material. The silicon-containing composition comprises 5-95 parts of modified polysiloxane, 5-95 parts of hydrocarbon wax, 5-95 parts of fatty acid amide, 5-95 parts of metallic soap and 1-5 parts of other auxiliaries. The silicon-containing composition for processing the chlorine-containing polyolefin material is applied to processing and extrusion of the chlorine-containing polyolefin composite material, modified polysiloxane not only contains a plastic-loving part but also contains a filler-loving part, and meanwhile, the whole molecular structure takes organic silicon as a main chain, so that the special performance of the organic silicon is achieved; according to the present invention, the chlorine-containing polyolefin composite material is compounded with other lubricants so as to achieve efficient internal and external lubrication, high cost performance and no precipitation, can effectively delay the decomposition time of the chlorine-containing polyolefin, can weaken the adhesion effect between the chlorine-containing polyolefin and the metal, can substantially prolong the screw cleaning time during the processing of the chlorine-containing polyolefin composite material, and can improve the production efficiency.
Owner:CHENGDU SILIKE TECH

Fabricated concrete open-web sandwich plate hoisting device

The utility model discloses an assembly type concrete open-web sandwich plate hoisting device, an open-web sandwich plate is a #-shaped prefabricated part, the hoisting device comprises a hoisting tool, and the hoisting tool comprises an upper sling, an upper transverse hoisting beam, a lower sling, a lower transverse hoisting beam and an opening clamping device; the two upper transverse hanging beams are rotationally arranged in a mutually crossed manner, and the upper sling is connected to the crossed position of the two upper transverse hanging beams; the lower slings are arranged at the two ends of each upper transverse hanging beam respectively, the other end of each lower sling is connected with the corresponding lower transverse hanging beam, and an opening clamping device is arranged at the other end of each lower transverse hanging beam. By applying the hoisting device for the fabricated concrete open-web sandwich plate, the hoisting problem of the fabricated concrete open-web sandwich plate is effectively solved.
Owner:CHINA MCC17 GRP CO LTD

Method for synthesizing cyclic carbonate by catalyzing conversion of carbon dioxide with ZIF-8-coated In2O3 composite material

The invention provides a method for synthesizing cyclic carbonate by catalyzing conversion of carbon dioxide with a ZIF-8-coated In2O3 composite material, and belongs to the field of catalytic chemistry. According to the method, carbon dioxide and an epoxy compound are used as raw materials, a ZIF-8-coated In2O3 composite material is used as a catalyst, tetrabutylammonium bromide is used as a cocatalyst, cycloaddition of the epoxy compound and normal-pressure carbon dioxide is performed to synthesize cyclic carbonate, and the ZIF-8-coated In2O3 composite material is prepared by in-situ compounding of ZIF-8 and In2O3 of a hollow prism structure. The ZIF-8-coated In2O3 nano-composite catalyst provided by the invention is simple to prepare, the raw materials are cheap and easy to obtain, the catalytic performance is excellent, and high-selectivity synthesis of cyclic carbonate under mild conditions can be realized. In addition, the catalyst is stable in structure, easy to separate from a product and good in recycling performance, and belongs to an environment-friendly catalyst.
Owner:GUANGDONG CARBON LANGUAGE NEW MATERIAL CO LTD

Aqueous alkaline zinc-iodine battery and preparation method thereof

The invention relates to an aqueous alkaline zinc-iodine battery and a preparation method thereof, and belongs to the technical field of aqueous zinc-iodine batteries. The battery includes: a positive electrode; a negative electrode; and an aqueous alkaline electrolyte; wherein the positive electrode comprises a current collector, a positive electrode active material, a conductive agent and an adhesive, and the positive electrode active material is iodide; the aqueous alkaline electrolyte comprises a chlorine-containing additive, a zinc salt electrolyte, an alkaline inorganic salt and water. The aqueous alkaline zinc-iodine battery provided by the invention is low in cost and simple to manufacture. According to the aqueous alkaline zinc-iodine battery provided by the invention, the iodide is adopted as the positive electrode active material, so that instability and potential safety hazards caused by taking an iodine elementary substance as the positive electrode at present are avoided. The battery disclosed by the invention releases a high-potential discharge platform at 1.65-1.68 V, the discharge capacity reaches 372-385 mAh.g <-1 >, and the battery shows rapid oxidation-reduction kinetics and excellent long-acting cycle stability.
Owner:CHINA NAT PETROLEUM CORP

Ferulic acid derived binary acyl chloride compound, copolymerization modified para-aramid resin as well as preparation method and application of ferulic acid derived binary acyl chloride compound and copolymerization modified para-aramid resin

The invention discloses a ferulic acid-derived binary acyl chloride compound, a copolymerization modified para-aramid resin, and a preparation method and application of the ferulic acid-derived binary acyl chloride compound and the copolymerization modified para-aramid resin. The structural formula of the copolymerization modified para-aramid resin is as follows: # imgabs0 #, wherein m: n = (90-99): (10-1). According to the invention, an asymmetric third monomer ferulic acid derived binary acyl chloride is introduced into a traditional para-aramid fiber structure for modification, so that the dissolvability of the material is enhanced, and the flexibility of the material is improved while the relatively high mechanical strength of the original para-aramid fiber is maintained.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI

Triazine / heptazine homojunction structure carbon-doped carbon nitride photocatalyst as well as preparation method and application thereof

The invention provides a preparation method of a triazine / heptazine homojunction structure carbon-doped carbon nitride photocatalyst, which comprises the following specific steps: (1) placing mixed powder of melamine and 2, 4, 6-triaminopyrimidine in air, heating to 300-500 DEG C, and calcining for 2-6 hours to form a mixture of carbon-doped melamine and oligomer thereof; (2) placing the mixture obtained in the step (1) in water at 60-70 DEG C, performing ultrasonic dispersion, then slowly cooling to room temperature, oscillating for 12-36 hours, removing moisture through rotary evaporation, and further drying to obtain a solid supramolecular precursor; and (3) fully mixing the solid supramolecular precursor obtained in the step (2) with molten salt, calcining at 500-600 DEG C for 2-6 hours, cooling, fully washing with deionized water, removing mixed salt, separating solid residues, and drying to obtain the triazine / heptazine homojunction structure carbon-doped carbon nitride photocatalyst THCNx-t. The prepared carbon-doped carbon nitride photocatalyst is uniform in homojunction distribution, and has the characteristics of excellent photochemical properties, high photon-generated carrier separation efficiency and excellent photocatalytic benzyl alcohol selective oxidation performance.
Owner:CHINA PETROLEUM & CHEMICAL CORP

Feed for greater wax moths and preparation method of feed

The invention provides a greater wax moth feed and a preparation method thereof. The feed comprises 100 g of milk powder, 100 g of flour, 100 g of wheat bran, 100 g of yeast powder, 100 g of bean flour, 60 g of corn flour, 100 g of beeswax, 100 g of honey and 60 g of glycerin. The method comprises the following steps: weighing the components in proportion, and uniformly mixing. According to the method, the adaptability of greater wax moths to different foods can be evaluated by constructing a life table, and although the method is used for feeding the greater wax moths with honeycombs and artificial feed, although the method has different influences on the growth and development of the greater wax moths, the greater wax moths fed with the artificial feed show relatively good adaptability, and the method is suitable for constructing experimental stable populations of greater wax moths.
Owner:GUIYANG UNIV

Novel antibacterial peptide GG25 and application thereof

The invention is applicable to the technical field of polypeptides, and provides a novel antibacterial peptide GG25 and application thereof, and the amino acid sequence of the antibacterial peptide GG25 is as shown in SEQ ID No.1. The molecular weight of the novel antibacterial peptide GG25 is 2890.52 Da, and the novel antibacterial peptide GG25 has antibacterial activity on escherichia coli, klebsiella pneumoniae, pseudomonas aeruginosa, enterococcus faecalis, salmonella typhimurium, methicillin-resistant staphylococcus aureus, staphylococcus aureus, staphylococcus epidermidis, listeria monocytogenes and bacillus subtilis; the hemolytic activity is low, the cytotoxicity is small, and the escherichia coli and methicillin-resistant staphylococcus aureus are not easily induced to generate drug resistance; in addition, the gelatin chitosan food coating containing GG25 also has a good beef preservation effect, and can be applied to the fields of food, animal husbandry, medicine and the like.
Owner:JILIN UNIVERSITY

Upatinib oral solution as well as preparation method and application thereof

The invention relates to the technical field of pharmaceutical preparations, in particular to an upatinib oral solution as well as a preparation method and application thereof. The oral upatinib solution is prepared from the following components in percentage by weight: 0.1%-1.5% of upatinib, 1%-20% of hydroxypropyl beta-cyclodextrin, 0.5%-5% of a flavoring agent and the balance of water, wherein the oral upatinib solution is prepared from the following components in percentage by weight: 0.1%-1.5% of upatinib, 1%-20% of hydroxypropyl beta-cyclodextrin, 0.5%-5% of a flavoring agent and the balance of water; the degree of substitution of the hydroxypropyl beta-cyclodextrin is 4.0 to 5.5. The oral upatinib solution overcomes the problems of overlarge tablet diameter, poor oral compliance, low solubility in water and low bioavailability of upatinib tablets in the prior art, and has the advantages of simplicity in preparation and convenience in use.
Owner:杭州和康药业有限公司

Sturgeon roe peptide for preventing alcoholic liver injury as well as preparation method and application of sturgeon roe peptide

The invention discloses sturgeon roe peptide for preventing alcoholic liver injury as well as a preparation method and application of the sturgeon roe peptide. The peptide sequence is ILKPTDAGTL, ALPLDPK, LGGL, VNRDL, LLGQ, VFVLN or LAGL. The preparation method specifically comprises the following steps: (1) adding deionized water into the sturgeon roes, and homogenizing; (2) adjusting the pH value, adding alkaline protease, carrying out enzymolysis, carrying out enzyme inactivation, and cooling; and (3) performing centrifugal treatment, and taking supernate to obtain the traditional Chinese medicine composition. The sturgeon roe peptide disclosed by the invention has the efficacy of preventing or treating alcoholic liver injury, and is remarkable in hangover alleviating effect, simple to prepare and low in cost.
Owner:GUIZHOU QIANSTURGEON BIOTECHNOLOGY CO LTD

Nonlinear seepage flow velocity equivalent testing device and method for simulating fractured rock mass

The invention belongs to the field of experimental research of rock seepage, and provides a non-linear seepage flow velocity equivalent testing device for simulating fractured rock mass, which comprises a water storage container, a water supply part, a pressure measuring part, a pore matrix part and a through fracture, the output end of the water supply part is communicated with the water storage container, and the water storage container is communicated with the pressure measuring part and the pore matrix part; the pore matrix part is filled with a pore matrix, the pore matrix is of a hollow cylindrical structure, the hollow part of the pore matrix forms the through crack, and the through crack is blocked or partially filled; the pore matrix part is provided with a drainage chamber, and a water source in the water storage container enters the drainage chamber through the pore matrix; according to the method, the change condition of the flow velocity of the rock mass with the through cracks at the through cracks can be effectively measured, the seepage flow containing the through cracks can be accurately calculated, and the change rule of the non-linear seepage flow velocity is provided.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED +4