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63results about How to "Industrialized" patented technology
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Phosphoryl carboxylic acid propofol ester derivative and preparation method thereof
ActiveCN101633671AImprove bioavailabilityGood water solubilityOrganic active ingredientsAnaestheticsO-Phosphoric AcidPhosphate
The invention relates to a phosphoryl carboxylic acid propofol ester derivative which has the general formula (I). The method comprises the following steps: propofol reacts with 2-halogenated carboxylic acid and a derivative thereof by alkali to obtain corresponding ester and then the product reacts with phosphoric acid or thiophosphoric acid and the derivative thereof by dissolvent to obtain a water-soluble product or the propofol reacts with a 2-halogenated carboxylic acid phosphate ester derivative by the alkali to obtain the corresponding ester and then the ester is catalyzed, hydrogenated and salified to obtain the water-soluble product (I). The preparation method has mild reaction condition, high yield, simple operation and industrialized prospect, and a prepared oral preparation has the characteristics of high bioavailability, rapid absorption, high stability, and the like; and auxiliary materials with safety defects, such as a surface active agent, and the like can not be added into the prepared injection, thereby improving the stability of the preparation, reducing or removing injection pain, increasing the compliance of patients, overcoming the defects of propofol emulsion and having the advantage of obvious effect. The invention has the structural general formula (I).
Owner:HANGZHOU ADAMERCK PHARMLABS INC
Four-die stepless speed change series-parallel hybrid power driving system
ActiveCN102050001ATight structureEasy to Modular DesignGas pressure propulsion mountingPlural diverse prime-mover propulsion mountingClutchEnergy storage
The invention discloses a four-die stepless speed change series-parallel hybrid power driving system, belonging to the technical field of automobile hybrid driving. The system comprises an engine, a clutch, two motors, corresponding transmission chains of the two motors, a power transfer switching device, a planetary gear differential device, a deceleration differential device, an energy storage device and a motor control device. The system provided by the invention has the characteristics of better technical inheritance with existing vehicles, overall dynamic property, fuel economy and low emission, and has functions of four-die driving, stepless speed change and series-parallel system; the problems of insufficient driving power, lack in ramp starting ability, large system volume and high cost of the existing similar technologies and the problems that the stepless speed regulation of the engine cannot be realized and the batch industrialization is difficult as the electromechanical components are difficult to manufacture are solved, and organic combination of high performance, low development cost, low system cost and easy implementation of scale industrialization is realized.
Owner:SHANGHAI JIAO TONG UNIV
Method for preparing anode material of metal oxide nano-sheet lithium ion battery
ActiveCN101582500AIncrease capacityIncrease powerElectrode manufacturing processesNickel oxides/hydroxidesNickel saltManganese
A method for preparing an anode material of a metal oxide nano-sheet lithium ion battery relates to a metal oxide nano-sheet, in particular to a metal oxide nano-sheet applicable to the anode material of the lithium ion battery and a preparation method thereof. The invention provides a method for preparing the anode material of the metal oxide nano-sheet lithium ion battery, wherein the anode material has higher specific capability, better rate capability and longer cycle life. The method comprises the following steps of: preparing a solution A from soluble cobalt salt, soluble nickel salt or soluble manganese salt; dissolving a soluble lithium salt into water and adding a precipitant in the water, thus obtaining a solution B; adding the solution B in the solution A in a mixing state; subsequently adding an organic acid into the solution and stirring the solution, thus obtaining a mixture; stirring the mixture to be dry and obtaining a precursor powder; pre-calcining the obtained precursor powder; and taking out the pre-calcined precursor powder, grinding and sintering the pre-calcined precursor powder, thus obtaining the anode material of the metal oxide nano-sheet lithium ion battery.
Owner:XIAMEN UNIV
Multi-purpose adaptive second-gear multimode stepless speed changing electric transmission integrated power system
ActiveCN104494415AGood loadabilityReduce labor intensityHybrid vehiclesGas pressure propulsion mountingElectric power transmissionVehicle dynamics
The invention provides a multi-purpose adaptive second-gear multimode stepless speed changing electric transmission integrated power system. The multi-purpose adaptive second-gear multimode stepless speed changing electric transmission integrated power system comprises a first motor and the like; a planetary gear train comprises a gear ring, a planet carrier and a sun gear; the rotor of the first motor is connected with the gear ring of the planetary gear train; the rotor of the second motor is connected with the sun gear of the planetary gear train and the input end of a transmission chain, respectively; a gear shifting device is connected with the input end of a speed reducing differential mechanism and control on power transfer from the planet carrier of the planetary gear train and the output end of the transmission chain to the speed reducing differential mechanism is realized; the output end of the speed reducing differential mechanism is connected with two wheels by use of two half shafts; a motor control device is connected with an energy storage device to transfer electric energy; the motor control device is further connected with the first motor and the second motor, respectively, and outputs control instructions. The multi-purpose adaptive second-gear multimode stepless speed changing electric transmission integrated power system has the characteristics of better technical inheritance to the existing vehicles, whole vehicle dynamic property, fuel economy and low emission.
Owner:SHANGHAI JIAO TONG UNIV +1
Calcium-resistant soyabean protein and preparation method thereof
ActiveCN102429089AHigh yieldHigh recovery rateProtein composition from vegetable seedsProteins working-up by texturisingSodium CaseinateCentrifugation
The invention discloses a calcium-resistant soyabean protein and a preparation method thereof. The preparation method comprises the following steps of: firstly preprocessing low-temperature defatted soybean powder to obtain soybean powder slurry; then carrying out injection cooking on the soybean powder slurry in a continuous heat treatment device, controlling temperature to be 100-150 DEG C and time to be 10-100s to obtain heat-treated soybean powder slurry; and finally regulating pH value of the heat-treated soybean powder slurry, carrying centrifugal separation, regulating pH value of supernatant, precipitating after centrifugation and dissolving with water again, then regulating the pH value to be 6.5-7.5, and carrying out spray drying to obtain calcium-resistant soyabean protein powder. Protein content of the obtained calcium-resistant soyabean protein product is more than 80%, and content of binding sugar is not less than 70mg per g of the protein. The preparation method disclosed by the invention has low production cost, high yield, simple process and stable properties, and the calcium-resistant soyabean protein disclosed by the invention can partially or completely substitute sodium caseinate and can be applied to plain food or calcium supplement healthcare food and medical clinical nutriment.
Owner:SOUTH CHINA UNIV OF TECH
Method for preparing flexible MoS2/CNFs sodium ion battery negative electrode material by combining electrostatic spinning and hydrothermal method, and product
ActiveCN108878808AImprove sodium storage performanceLow priceMaterial nanotechnologyCell electrodesElectrospinningSulfur
The invention discloses a method for preparing a flexible MoS2 / CNFs sodium ion battery negative electrode material by combining electrostatic spinning and a hydrothermal method, and a product. The method comprises the following steps of 1) synthesizing carbon nanofibers by utilizing an electrostatic spinning technology; 2) taking the carbon nanofibers as a precursor, carrying out a hydrothermal reaction in an aqueous solution comprising a molybdenum source and a sulfur source to obtain a MoS2 / CNFs compound; and 3) performing high-temperature annealing treatment to obtain a MoS2 / CNFs compositematerial. The MoS2 / CNFs composite material is simple in preparation process, the cost is low, the processing is easy, and the method can be used for large-scale production. By virtue of the expanded layer spacing of the material and the stable three-dimensional conductive network, the electrochemical performance of the material is improved, the material can be used as a negative electrode materialof the sodium ion battery, and the transfer rate of electrons and sodium ions can be accelerated. The MoS2 / CNFs composite material is high in capacity, long in cycle life and excellent in rate performance, and has a high prospect in future commercial application.
Owner:SOUTH CHINA UNIV OF TECH
Method for hydrolyzing chitin and chitosan
The invention relates to a method for hydrolyzing chitin and chitosan, in particular to a method for jointly hydrolyzing chitin and chitosan through a physical method and a chemical method. The method for hydrolyzing chitin and chitosan comprises the following steps that: the chitin or chitosan is taken as a raw material, binary mixed ionic liquid is taken as a solvent for the chitin or chitosan,acid functionalized ionic liquid is taken as a catalyst for hydrolysis, a water and strong polar co-solvent is added, and hydrolysis reaction is performed under the microwave reaction condition; and the obtained product is analyzed through ion chromatography, gel permeation chromatography and infrared, and the content of total reducing sugar is measured by an Imoto method. The method for hydrolyzing chitin and chitosan has the advantages of high efficiency, environmental friendliness, and high yield.
Owner:苏州九一高科无纺设备有限公司
Stable phytosterol nanometer emulsion compounded by soy protein-stevioside, and preparation method and application thereof
ActiveCN108618146AGood resolubilityUniform particlesMilk preparationFood ingredientsProtein solutionOil phase
The invention discloses stable phytosterol nanometer emulsion compounded by soy protein-stevioside, and a preparation method and application thereof. The method comprises the steps of mixing a soy isolate protein solution and a stevioside solution to prepare a composite stable system; dissolving phytosterol into sunflower seed oil being 90 to 99 DEG C to obtain an oil phase; adding thw oil phase dissolved with the phytosterol into a water phase of soy protein-stevioside; controlling the mass ratio of the oil phase to the water phase to be 10:90-50:50; after the homogenizing, performing ultrasonic treatment or high-pressure micro jet flow treatment to obtain the stable phytosterol nanometer emulsion compounded by soy protein-stevioside. A powder product with high redissolving performance loaded with phytosterol can be prepared through spray drying treatment on the nanometer emulsion. The process conditions are simple and mild; the natural effect and safety are realized; the fast continuous production can be performed; products applied to food, medicine and cosmetics can be prepared through operating and controlling the process conditions; the industrialized and scaled application values are realized.
Owner:SOUTH CHINA UNIV OF TECH
Garbage pretreatment and efficient recycling technology matched with garbage combustion system
InactiveCN105149320APromote resource utilizationImprove resource utilization valueSolid waste disposalTransportation and packagingCombustion systemDecomposition
The invention discloses a garbage pretreatment and efficient recycling technology matched with a garbage combustion system. The garbage pretreatment and efficient recycling technology comprises the following steps: a, a garbage bag is broken open by a bag breaking machine; b, most leachate of household garbage subjected to bag breakage is drained by a leachate processing technology; c, after most leachate of household garbage is drained, the household garbage is screened and separated, and oversize products and undersize products are separated; d, the oversize products and the undersize products pass through a magnetic separation apparatus to separate and recycle ferromagnetic objects; e, the oversize products pass through a gravity winnowing apparatus to separate oversize heavy objects and oversize light objects; f, the oversize light objects pass through a waste and old plastic fine separation and recycling dry separator to separate waste plastics and oversize light impurities; g, the undersize products, the oversize heavy objects and the oversize light impurities are stirred, uniformly mixed and dried, and then enter an incinerator for incineration and power generation; and h, the separated waste plastics are processed by a splitting decomposition oil refining device. According to the garbage pretreatment and efficient recycling technology matched with a garbage combustion system, the household garbage incineration disposal has the characteristics of harmlessness, recycling, industrialization and the like.
Owner:BEIJING ZHENGSHI ENVIRONMENTAL PROTECTION ENG CO LTD
Method for extracting fresh ginger polyphenol from fresh ginger
The invention relates to a method for extracting fresh ginger polyphenol from fresh ginger, and specifically relates to a method for extracting fresh ginger polyphenol from fresh ginger by ultrasonic wave. The method comprises the following steps: crushing fresh ginger by a plant tissue breaking method; extracting by an ultrasonic wave method; purifying by macroporous resin; and concentrating and drying. The extraction rate and purity of fresh ginger polyphenol in fresh ginger are improved by the combined steps which are mild in treatment condition and less in loss on effective components, and the novel method is simple and convenient, easy to operate and low in cost, and is suitable for industrial production on a large scale.
Owner:NANJING ZELANG AGRI DEV
Method for preparing cyclopentanone
ActiveCN108863738APrevent adhesionHigh selectivityMetal/metal-oxides/metal-hydroxide catalystsPreparation from heterocyclic compoundsHydrogenReaction temperature
The invention provides a method for preparing cyclopentanone. The method comprises the following steps: enabling furfural to be subjected to hydroisomerization under the conditions of certain reactiontemperature and reaction pressure in presence of hydrogen, carbon dioxide and a catalyst so as to obtain the cyclopentanone. A mixture of water and an oxygen-containing heterocyclic compound is preferentially used as a solvent in a reaction. According to the method provided by the invention, the selectivity of the cyclopentanone is improved, the adhesion of the furfural and / or furfuryl alcohol tothe surface of the catalyst is avoided, and the service life of the catalyst is prolonged.
Owner:WANHUA CHEM GRP CO LTD
Method for extracting esculetin from herba violae
InactiveCN102060822AImprove adsorption capacityGood effectOrganic chemistryLapsana communisViola mirabilis
The invention relates to a method for extracting esculetin from herba violae. The method comprises the following steps: using herba violae as a raw material to grind, adding 7-15 times of 60-90% ethanol to perform backflow extraction for 2-3 times; filtering, recycling ethanol under reduced pressure, diluting the concentrated solution with hot water; adding macroporous resin for adsorption; washing resin column with water to ensure that the solution has no caramel colour; using 4-6 BV of 50-80% ethanol to elute the active ingredient, recycling ethanol from eluent; adjusting the acidity of the hot solution for precipitation, filtering out the precipitate, dissolving the precipitate with ethyl acetate through refluxing; adding the solution in an aluminum peroxide column, recycling the obtained solution in a small-column container, and standing for crystallization; dissolving the obtained crystals with ethanol to perform refluxing and recrystallization; and drying the obtained crystals to obtain the esculetin product. By adopting the method to produce esculetin, the technology is simple, is easy to operate, has low production cost and high product purity.
Owner:NANJING ZELANG MEDICAL TECH
Yellow phosphor, preparation method thereof and application thereof in light-emitting devices
InactiveCN106978176AStable physical and chemical propertiesRealize integrationLuminescent compositionsSemiconductor devicesPhosphorIntegrated design
The invention discloses yellow phosphor, a preparation method thereof and application thereof in LED lighting field, and belongs to the field of preparation and application of light-emitting materials. The composition expression of the yellow phosphor is Ba(CexSc1-x)2O4, with 0<x< / =0.5. The yellow phosphor is prepared by preparing Ba source, Ce source and Sc source compounds according to the molar ratio of Ba:C3:Sc=1:2x:(2-2x), mixing, briquetting, sintering initially, briquetting, sintering secondarily, and grinding. By combining a diode chip having emission wavelength of 430-460 nm and the above yellow phosphor, it is possible to prepare a white LED light-emitting device. The yellow phosphor and the manufacture process of its related light-emitting devices have the advantages that the manufacture process is simple and is easy to perform, integrated design of the devices is facilitated, and the yellow phosphor and the manufacture process have the potential of industrial and batch production.
Owner:UNIV OF JINAN
Method for inhibiting aggregation of proteins in aqueous solution and modifying physical property of proteins, product obtained therethrough and application of product
InactiveCN102499320AInhibit aggregation behaviorEffective property modificationFood preparationProtein foodstuffs working-upSolubilityFood additive
The invention discloses a method for inhibiting the aggregation of proteins in an aqueous solution and modifying the physical property of the proteins, a product obtained therethrough and an application of the product. A preparation method of the product comprises the following steps: 1, dissolving 1-10 parts by mass of the proteins in a buffer which is a buffer salt solution with the pH value of 6.0-8.0 and the concentration of 0.01-0.2M; 2, adding a macromolecular crowding reagent to the solution obtained in step 1, uniformly mixing, stirring for 4-30h in a 60-95DEG C constant temperature magnetic stirrer, and rapidly cooling to room temperature through ice-bath; 3, centrifuging the obtained product to remove insoluble substances; and 4, dialyzing the product obtained in step 3 to obtain the less aggregation protein physical property modification product. The preparation method which is simple and is easy to operate, and the product which can inhibit the protein aggregation and allows functional properties of the water solubility, the emulsibility, the foaming property, the thermal stability and the like of the proteins to be greatly improved can be applied to the modified protein preparation, food additives or the medicine industry.
Owner:SOUTH CHINA UNIV OF TECH
Technique for separating and preparing rapeseed protein cogenerating rapeseed polyoses from the low-temperature cold pressing rapeseed dregs film
InactiveCN101575369AGuaranteed purityGuaranteed yieldPeptide preparation methodsPlant peptidesInorganic saltsOrganic solvent
The invention discloses a technique for separating and preparing rapeseed protein cogenerating rapeseed polyoses by the low-temperature cold pressing of rapeseed dregs film, comprising the following steps: oil manufacture is carried out to rapeseed with the low-temperature cold pressing method (not more than 100 DEG C). Raffinate oil in the rapeseed dregs is leached with organic solvent in order, and ethanol is used to remove polysaccharide, address sugar, parts of pigment, and the like; then, ultrafiltration membrane concatenation is taken as the main separation technique to separate and purify rapeseed protein cogenerating rapeseed polyoses from low-temperature rapeseed dregs, and 500 kDa of ultrafiltration membrane are used to intercept rapeseed protein so as to obtain protein of which the defatted rapeseed quality is 75%; 3 to 5 kDa of ultrafiltration membrane are used to filter address sugar, pigment, inorganic salt and the like, so as to obtain rapeseed polyoses relative defatted rapeseed quality of which is 3.2%; at last, rapeseed protein and rapeseed polyoses solution are respectively dried into solid with a spray drying process and a vacuum drying process. The invention is favorable for environment protection, and the yield of rapeseed protein is above 75%; meanwhile, rapeseed polyoses relative defatted rapeseed quality of which is 3.2% is obtained.
Owner:HEFEI UNIV OF TECH
Cylindrical nickel-zinc cell and fabrication process thereof
ActiveCN101826638AAvoid deformationGrowth inhibitionFinal product manufactureAlkaline accumulators manufactureElectrical batteryZinc
The invention discloses a cylindrical nickel-zinc cell and a fabrication process thereof. By making development and improvement in the formula of the cathode, the matrix material of the cathode, the membrane and the structural design, the invention restrains the deformation of a zinc polar plate, the growth of a zinc dendrite, the dissolution and deactivation of the zinc and the formation of a corrosion cell. Furthermore, the invention effectively reduces the fabrication cost and lays a foundation for industrialization of cylindrical nickel-zinc cells.
Owner:SHENZHEN BETTERPOWER BATTERY
High-entropy alloy for hydrogen evolution catalysis and preparation method thereof
ActiveCN112626405AChoose low priceEfficient hydrogen evolution catalytic performancePlatinumIron powder
The invention provides a high-entropy alloy for hydrogen evolution catalysis and a preparation method thereof. The high-entropy alloy is prepared by taking iron, cobalt, nickel, tungsten and molybdenum as metal raw materials, the atomic number ratio of iron to tungsten to molybdenum in the metal raw materials is 1: 1: 1, the atomic number ratio of cobalt to nickel is 1: 1, and the atomic number of iron accounts for 9.5-12.5% of the total atomic number of the metal raw materials. The preparation method comprises the steps that cobalt powder, tungsten powder, iron powder, nickel powder and molybdenum powder are weighed according to the preparation proportion of the metal raw materials of the high-entropy alloy and are mixed, and mixed powder is obtained; ball milling is performed on the mixed powder; the mixed powder obtained after ball milling is pressed and formed, and a blank is obtained; and the blank is subjected to pressureless sintering, and the high-entropy alloy is obtained. According to the high-entropy alloy provided by the invention, non-noble metal with low price and rich reserves is selected as a raw material, so that the cost is greatly saved. The high-entropy alloy prepared through the method has efficient hydrogen evolution catalytic performance and can replace existing platinum series precious metal to be applied to the aspect of electrodes.
Owner:SOUTHWEST JIAOTONG UNIV
Feed for larvae of houseflies and preparation method thereof
The invention provides a feed for larvae of houseflies, which is prepared by using the following components by weight percent: 35% of nutrition source and 65% of water, wherein the nutrition source is a mixture of any two of pig manure, beer residues and straw powder. Agricultural and industrial byproducts and leftovers are taken as the raw materials of the feed for the larvae of houseflies provided by the invention; the source is wide; and the reutilization of resource is realized. Compared with the prior art, the feed has the advantages that the cost of the feed is greatly reduced and the total output and daily output of fresh maggot are obviously increased. Besides, during the process of feeding with the feed provided by the invention, the peculiar smell of the feed is gradually reduced till disappearing, so that the peculiar smell of the leftovers is eliminated, and the multiple effects of reusing biological resources, reducing environmental pollution and purifying environment are achieved.
Owner:SUN YAT SEN UNIV
Humidity-interference-resistant super-hydrophobic fabric-based pressure sensor and preparation method thereof
ActiveCN112726205AImprove sensing stabilityGuaranteed to be free from interferenceLiquid repellent fibresVegetal fibresConductive materialsStress sensors
The invention provides a humidity-interference-resistant super-hydrophobic fabric-based pressure sensor and a preparation method thereof. The preparation method comprises the following steps: dipping fabric in an alkaline solution to increase active groups on the surface of the fabric; then dipping the fabric in a conductive material solution to obtain conductive fabric; and dipping the conductive fabric in the super-hydrophobic nano metal oxide particle dispersion liquid to form a super-hydrophobic nano metal oxide layer on the surface of the conductive fabric, and connecting an electrode to the surface of the conductive fabric to obtain the super-hydrophobic fabric-based pressure sensor. Through the super-hydrophobic nanoscale metal oxide layer, the conductive layer of the fabric-based pressure sensor can be fully protected from humidity interference on the basis of not reducing the conductivity and the sensing sensitivity of the sensor, so that the sensing stability of the fabric-based pressure sensor in different use environments is improved.
Owner:WUHAN TEXTILE UNIV
Basket type cantilever scaffold
PendingCN109372239AImprove stabilityEasy constructionScaffold accessoriesBuilding support scaffoldsStress systemCable stayed
The invention discloses a basket type cantilever scaffold. The basket type cantilever scaffold comprises a set of steel profiles (1); one end of each steel profile is welded with a rear connecting plate (2); the rear connecting plates are connected with a lower building through beam (4) through bolt assembly (3); the other end of each steel profile is welded with a front connecting plate (5); thefront connecting plate is connected to a lower connecting plate (7) welded to the lower end of a lower basket rod (6) through a bolt assembly; the upper end of the lower basket rod is connected with the lower end of an upper basket rod (9) through a flower basket assembly (8); the upper end of the upper basket rod is welded with an upper connecting plate (10); and the upper connecting plate is connected with an upper building through beam (11) through a bolt assembly. The problems of waste of template opening, leakage of reserved holes in walls, difficulty of dismantling of I-beams, infirmnessof cable-stayed wire ropes and the like can be solved; and in addition, the stability and rationality of a stress system are improved, and the cantilever scaffold is of great significance on buildingsafety. Compared with traditional construction methods, the cantilever scaffold has the characteristics of standardization, industrialization, convenient construction, beautiful appearance and the like.
Owner:CHINA CONSTR FOURTH ENG DIV +1
Temperature-sensitive fluorescent powder and preparation method and application thereof
ActiveCN111139074ASolution rangeSolve the accuracy problemThermometers using physical/chemical changesEnergy efficient lightingLuminous intensityOptical property
The invention discloses temperature-sensitive fluorescent powder and a preparation method and application thereof. The chemical formula of the temperature-sensitive fluorescent powder is Sr (PrxRe1-x)2O4, wherein x is 0.0001-0.1, and Re is at least one of Lu, Gd and Y. The temperature-sensitive fluorescent powder has good optical characteristics and chemical and thermal stability, the luminous intensity is obviously influenced by temperature, and the temperature-sensitive fluorescent powder is suitable for high-precision and wide-range optical temperature sensors. The temperature-sensitive fluorescent powder is prepared by adopting a solid-phase sintering method, and the whole preparation process is simplified in process, short in production period, high in production efficiency and convenient for industrial production.
Owner:UNIV OF JINAN
Method for hydrolyzing chitin and chitosan
ActiveCN102134615BIndustrializedHigh yieldSugar derivativesOligosaccharidesIon chromatographyHydrolysis
The invention relates to a method for hydrolyzing chitin and chitosan, in particular to a method for jointly hydrolyzing chitin and chitosan through a physical method and a chemical method. The method for hydrolyzing chitin and chitosan comprises the following steps that: the chitin or chitosan is taken as a raw material, binary mixed ionic liquid is taken as a solvent for the chitin or chitosan,acid functionalized ionic liquid is taken as a catalyst for hydrolysis, a water and strong polar co-solvent is added, and hydrolysis reaction is performed under the microwave reaction condition; and the obtained product is analyzed through ion chromatography, gel permeation chromatography and infrared, and the content of total reducing sugar is measured by an Imoto method. The method for hydrolyzing chitin and chitosan has the advantages of high efficiency, environmental friendliness, and high yield.
Owner:苏州九一高科无纺设备有限公司
Complete culture medium for culturing hepatocytes
PendingCN109694844ATo promote metabolismMeet the basic nutritional requirements for growthCulture processVertebrate cellsMetabolic enzymesPortal vein
The invention provides a complete culture medium for culturing hepatocytes. Complete culture medium components comprise a basic culture medium and mixed serum, wherein the mixed serum is composed of portal vein serum and fetal bovine serum. The complete culture medium provided by the invention can be applied to culture of a hepatoma cell line HepG2, and can also enhance the expression of pigment metabolic enzymes in the hepatocytes. The gene expression level of metabolic enzymes in the hepatocytes is enhanced in the premise of ensuring the normal growth of the hepatocytes and the survival of the hepatocytes.
Owner:ZHUJIANG HOSPITAL SOUTHERN MEDICAL UNIV
Yellow light fluorescent powder for white light LED and preparation method thereof
InactiveCN108300472AAchieve lightingImprove luminous efficiencyLuminescent compositionsSemiconductor devicesFluorescenceLength wave
The invention discloses yellow light fluorescent powder for a white light LED and a preparation method thereof. A chemical formula is Ba3(CexRe<1-x>)4O9. A solid-phase sintering method is used for preparing the Ba3Re4O9:Ce yellow fluorescent powder; the whole preparation process technology is simplified; the production period is short; the production efficiency is high; the fluorescence emission wavelength of the yellow fluorescent powder covers 475 nm to 750 nm; high luminous efficiency is realized; in addition, the center emission wavelength is about 580 to 600 nm. Compared with Ce:YAG, Ce:TAG and Ce:GAG ( with the center emission wavelength being respectively about 534 nm, 552 nm and 564 nm), the Ba3Re4O9:Ce fluorescent powder can more effectively enhance and improve the corresponding red light waveband color development index (R9); the warm white LED illumination can be favorably realized.
Owner:UNIV OF JINAN
Extraction method of total flavonoids in bitter herbs
The invention relates to an extraction method of total flavonoids in bitter herbs and in particular relates to a method combining ultrasonic waves with ethanol extraction. The extraction method comprises the following processing steps: drying fresh wild bitter herbs, grinding the bitter herbs with a grinder, extracting the bitter herbs by an ultrasonic method, mixing filtrates, carrying out concentration at reduced pressure, extracting and drying. The extraction method is simple in process and high in extraction efficiency, saves energy, is low in cost and is suitable for large-scale industrial production.
Owner:NANJING BIAOKE BIO TECH
Prasugrel derivatives, preparation method thereof and application of medicinal composition
InactiveCN107266365AImprove bioavailabilityFast absorptionOrganic active ingredientsOrganic chemistryCerebral thrombosisMedicine
The invention discloses prasugrel derivatives, a preparation method thereof and an application of medicinal composition, and particularly relates to a compound as shown in a general formula (I) in the description, or a stereoisomer, hydrate, solvate, eutectic, pharmaceutically acceptable salt or prodrug thereof, the preparation method thereof, the medicinal composition containing the same, and the medical application of the compound or the medicinal composition. The invention particularly discloses the application of the medicinal composition in preventing or treating atherosclerosis, myocardial infarction, stroke, ischemic cerebral thrombosis, peripheral arterial disease, acute coronary syndrome or thrombosis after coronary intervention. The definition of each substituent in the general formula (I) is the same as the definition in the description.
Owner:HC SYNTHETIC PHARMA CO LTD
Multi-purpose adapted second-speed multi-mode continuously variable transmission power-by-wire integrated power system
ActiveCN104494415BGood loadabilityReduce labor intensityHybrid vehiclesGas pressure propulsion mountingVehicle dynamicsElectric machine
Owner:SHANGHAI JIAOTONG UNIV +1
Chitosan hydrolysis method
InactiveCN105063135ANo pollutionIndustrializedFermentationBulk chemical productionReaction temperatureCellulase
The invention discloses a chitosan hydrolysis method and belongs to the technical field of chitosan hydrolysis. In the chitosan hydrolysis method, non-specific cellulase is selected, and chitosan and fibrin are similar in property and structure, so that good hydrolysis effect can be realized due to selection of cellulase. The chitosan hydrolysis method includes: taking chitosan as a raw material; using binary mixed ion liquid as a solvent of chitosan and cellulase as a catalyst for hydrolysis, and performing hydrolysis reaction under a condition of constant-temeprature oscillation, wherein reaction temperature is 45-58 DEG C, a proportion of cellulase and chitosan is 0.05-10%, reaction time is 3-10h, and reaction pH value is 3.6-5.0. The chitosan hydrolysis method has the advantages of being high in efficiency, environment friendly and high yield and has industrialization prospect. The solvent adopted in the method is a green solvent, free of volatilization and recyclable.
Owner:CHONGQING TECH & BUSINESS UNIV
Preparation method of hydrophobic porous carbon material
ActiveCN112408360AAvoid wastingAvoid it happening againCarbon preparation/purificationPotassium persulfateOXALIC ACID DIHYDRATE
The invention relates to a preparation method of a hydrophobic porous carbon material, which belongs to the field of carbon materials, and is characterized by comprising the following steps: pre-emulsifying raw materials organic silicon, styrene, acrylate, an emulsifier and deionized water, dropwisely adding potassium peroxodisulfate to perform emulsion polymerization to obtain styrene-acrylic latex SSAL, and blending the SSAL with an oxalic acid solution to obtain a resin matrix PSO; and carbonizing PSO at high temperature to obtain a hydrophobic porous carbon material. According to the method, oxalic acid is used as an activating agent, and a specific adding step is matched, so that the pore-forming effect is guaranteed, and meanwhile, energy waste and waste liquid generation are avoided.
Owner:山东利特纳米技术有限公司
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