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82results about How to "Realize industrial preparation" patented technology
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Double safety and effectiveness inspection method of human lumbar bone and implant
InactiveCN102920537AEnsure safetyGuaranteed validityJoint implants3D modellingHuman bodyManufacturing cost reduction
The invention provides a double safety and effectiveness inspection method of human lumbar bone and implant, and belongs to the field of medicine. The method comprises the following steps: acquiring a 3D (three-dimensional) rendering model of lumbar body bone, lumbar disc and interspinous ligament by a 3D reconstruction technology; performing 3D grid division to the 3D rendering model, and giving attributes of a heterogeneous material to the 3D rendering model; performing 3D modeling to an implant; assembling the lumbar body bone, the lumbar disc, the interspinous ligament and the implant, and analyzing stress and strain of the assembly by adopting uniformly distributed nodal load through a finite element analysis method; simulating visible finite element analysis by a computer before the implant is implanted into a human body. Therefore, the verification requirement to bone and implant double safety and effectiveness can be fulfilled, the damage of the implant to original human lumbar bones can be prevented, double safety and effectiveness of the bones and implant can be guaranteed, the manufacture cost can be effectively reduced along with convenience and quickness, and individual and industrial manufacturing of a human lumbar bone implant can be realized. The method is applicable in the field of implant stress-strain analysis in the orthopedics department.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Jagged annular needleless static spinning device and application method thereof
ActiveCN105506758ARealize automatic supplyEasy to operateFilament/thread formingCollection systemElectrospinning
The invention relates to a jagged annular needleless static spinning device and an application method thereof. The device comprises a liquid supply system and a nanofiber collection system. The liquid supply system is in the structure of a communicating vessel composed of a liquid storage bottle and a jagged annular needleless sprayer. The jagged annular needleless sprayer is in the gap structure composed of an outer annular liquid groove and an inner annular liquid groove. The center of the bottom of the outer annular liquid groove is provided with a metal pipe. The center of the bottom of the liquid storage bottle is connected with one end of a liquid guide pipe, the other end of which is connected with the metal pipe. The liquid guide pipe is provided with a switch. By turning off the switch on the liquid guide pipe, a proper amount of polymer solutions is added into the liquid storage bottle. By turning on the switch, polymer solutions flow into the annular gap formed by the jagged outer annular liquid groove and the inner annular liquid groove. By adjusting the height of the liquid storage bottle, polymer solutions can overflow the annular gap. By turning on a motor, a metal cylinder is guaranteed to normally rotate at the certain speed. By turing on a high-voltage power supply, voltage is slowly increased. The jagged annular needleless static spinning device and the application method thereof help to achieve automatic supply of solutions to the sprayer and operation is performed conveniently.
Owner:DONGHUA UNIV
Double-circular-ring-shaped slit type electrostatic spinning device and method
InactiveCN105821497ARealize automatic and precise supplyRealize industrial preparationFilament/thread formingFiberCollection system
The invention discloses a double-circular-ring-shaped slit type electrostatic spinning device and method. The electrostatic spinning device comprises a liquid supply system, a double-circular-ring-shaped slit type nozzle system and a nano fiber collection system. The electrostatic spinning method comprises the following steps of: starting a microinjection pump to enable a solution to flow into a slit between an inner ring and an outer ring through a micro-channel in an inner core; adjusting the flow of the solution to enable a liquid surface of the solution to fully overflow in the slit, but not flow out; starting a speed regulating motor to enable a metal roller to rotate normally; starting a high-voltage electrostatic generator and slowly increasing voltage; when the voltage exceeds a certain value, forming a plurality of jet flows in the slit; in a process that the jet flows fly to the metal roller, volatilizing a solvent and curing a high polymer to form nano fibers which are deposited on the metal roller; and rotating the metal roller to collect the nano fibers. By adopting the microinjection pump and the liquid supply system, a high polymer solution can be automatically and accurately supplied, and the solution is sufficiently and efficiently utilized, so that the yield of the nano fibers is improved and continuous preparation of the nano fibers is realized.
Owner:DONGHUA UNIV
Flexible transparent conductive oxide nanofiber membrane and preparation method thereof
InactiveCN103924381AImprove conductivityHigh Visible Light TransmittanceHeating/cooling textile fabricsMonocomponent synthetic polymer artificial filamentSolventChemistry
The invention belongs to the technical field of photoelectric functional nano-materials, and particularly relates to a flexible transparent conductive oxide nanofiber membrane and a preparation method thereof. A precursor is composed of salt of a metallic oxide, salt of a doped element, an adhesive and a solvent, the precursor is sprayed on a substrate through electrospining equipment, and then high-temperature calcination is carried out to obtain the flexible transparent conductive oxide nanofiber membrane. The flexible transparent conductive oxide nanofiber membrane prepared with the method has flexibility, high conductivity and high visible-light permeability; no flexible substrate material is needed, and use of the flexible transparent conductive oxide nanofiber membrane is facilitated; the flexible transparent conductive oxide nanofiber membrane prepared with the electrostatic spinning method is controllable in size, high in repeatability, simple in process, high in efficiency and low in cost, and industrial preparation can be achieved.
Owner:BEIHANG UNIV
Preparation method of core-shell structural high-transparency low-radiation heat-insulating composite nanometer coating
InactiveCN103773223AHigh visible light transmittanceImprove stabilityCoatingsOrganic solventSpray coating
The invention belongs to the technical field of a functional nanometer material, and particularly relates to a preparation method of a core-shell structural high-transparency low-radiation heat-insulating composite nanometer coating. The method comprises the following steps: (1) adding and mixing a surface active agent and inorganic semiconductor particles in a solvent, and preparing core layer inorganic semiconductor nanometer particles by means of high-speed ball milling; (2) dispersing a modified core layer, a shell layer precursor and an ammonia water solution in an alcohol solvent, and performing high-speed ball milling to obtain a core-shell structural nanometer material powder body; (3) roasting to obtain a core-shell structural composite nanometer material; (4) dispersing the core-shell structural composite nanometer material in an organic solvent, and mechanically stirring to obtain a dispersion liquid of the composite nanometer material; (5) mixing the dispersion liquid with organic resin, a flatting agent and a defoaming agent, and mechanically stirring to obtain the high-transparency low-radiation heat-insulating composite nanometer coating. The high-transparency low-radiation heat-insulating composite nanometer coating can be used for coating glass and plastic surfaces by means of spray coating, brush coating, roller coating and the like, and has the effects of high transparency, low radiation and heat insulation.
Owner:BEIHANG UNIV
Elastomer thin film, preparation method thereof and flexible pressure sensor comprising elastomer thin film
ActiveCN109883583AGood linear relationshipRealize industrial preparationForce measurement using piezo-electric devicesElastomerSelective laser sintering
The invention relates to an elastomer thin film, a preparation method thereof and a flexible pressure sensor comprising the elastomer thin film, belongs to the technical field of pressure sensors, andaims at solving the technical problem that large-scale industrial production is difficult to realize as the flexible pressure sensors are narrow in linear response range and the flexible pressure sensor preparation methods are bad in repeatability in the prior art. According to the preparation method of the elastomer thin film, a three-dimensional model of a casting mould with a groove structureis established through three-dimensional modeling software; the casting mould in the step I is machined by adoption of a selective laser sintering technology; and finally, an elastomer fluid is pouredinto the groove of the casting mould obtained in the step II, and after curing is carried out, a thin film is stripped from the mould so as to obtain the elastomer thin film with a surface microstructure. The contact area and pressure intensity of the elastomer thin film present a favorable linear relationship in a range as high as 200 kPa, so that the wide linear response range and high sensitivity of the flexible pressure sensor can be realized.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Circular revolving brush electrostatic spinning device and use method of same
ActiveCN106757421ARealize automatic supplyEasy to controlFilament/thread formingTextile/flexible product manufactureElectrospinningGas cylinder
The invention relates to a circular revolving brush electrostatic spinning device comprising a liquid supplying system, a brush type spinning system and a nano-fiber collecting system. The brush type spinning system comprises a brush head, a brush shaft, a cylindrical seat and a metal annular sprayer; the brush head is installed on the tail end of the brush head; the cylindrical seat is mounted on the brush shaft; the metal annular sprayer is arranged in a place on the upper end of the cylindrical seat and corresponding to the brush head; a bearing is arranged on the lower end of the cylindrical seat and on the brush shaft; the bearing is connected with a motor via a belt; the liquid supplying system has an air bottle, a spinning liquid storage bottle and a liquid guiding pipeline; the liquid guiding pipeline is disposed in the brush shaft; the upper end of the liquid guiding pipeline is connected with the brush head and the lower end extends into the bottom of the spinning liquid storage bottle; and the spinning storage bottle is connected with the air bottle via an air pipe. High-polymer solution can be automatically fed and nano-fibers can be prepared in batches in a stable way; and meanwhile, problems of volatilization of solvent during the electrostatic spinning and uncontrollability of the nano-fiber structure can be solved.
Owner:DONGHUA UNIV
High-transparent flexible hollow metal nanofiber membrane and manufacturing method thereof
InactiveCN104372525AIncrease reflectionGood optical clarityHeating/cooling textile fabricsNon-woven fabricsFiberDecomposition
The invention belongs to the technical field of photoelectric functional nanometer materials, and particularly relates to a high-transparent flexible metal nanofiber membrane and a manufacturing method of the high-transparent flexible metal nanofiber membrane. The manufacturing method mainly comprises the steps that firstly, polymer nanofibers are prepared through electrostatic spinning to serve as a substrate; then, metallic compounds are deposited on the surfaces of the polymer nanofibers through the electrostatic spraying method, and organic matter fiber cores are removed through pyrogenic decomposition to obtain hollow inorganic metal nanofibers; finally, a reduction reaction is carried out to obtain the high-transparent flexible hollow metal nanofiber membrane. The metal nanofiber membrane manufactured through the method has the characteristics of flexibility, high conductivity, high visible light permeability and near-infrared ray reflectivity. The transparent flexible conductive metal nanofiber membrane manufactured through the electrostatic spinning method is controllable in size, high in repeatability, simple in process, high in efficiency, low in cost and suitable for industrialized preparation.
Owner:BEIHANG UNIV
One-way impulse type wave power generation device
ActiveCN108425788AImprove conversion efficiencySimple structureMachines/enginesEngine componentsWave power generationAlloy
The invention discloses a one-way impulse type wave power generation device which comprises a water absorbing cabin, an air cabin, a flotation tank, an inlet elbow, an outlet straight pipe, a first flange plate, an installation pipe, a one-way impulse type air turbine and a power generator. The air cabin and the water absorbing cabin are jointed through a bolt and are separated through a rotatablealuminum alloy cover plate; a fixing block and a first fixing ring are arranged in the air cabin; the aluminum alloy cover plate is provided with a movable rod arranged in the first fixing ring in apenetrating way and rotating around the first fixing ring; a first end of the inlet elbow is arranged in the water absorbing cabin under the aluminum alloy cover plate; a second end of the inlet elbowis arranged on the upper part of the flotation tank and is provided with a second fixing ring; a rubber sheet capable of clinging to or loosening the second fixing ring is arranged in the second endof the inlet elbow; and the outlet straight pipe is arranged on the upper part of the air cabin and is connected with the installation pipe and the one-way impulse type air turbine through the first flange plate. According to the one-way impulse type wave power generation device provided by the invention, high-efficient conversion from wave energy to air kinetic energy to electric energy is realized, and the energy conversion efficiency is high.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
3D model constructed in vitro by means of serum-free culture medium as well as construction method of 3D model
ActiveCN107326003AEnsure nutritional needsPromote growthEpidermal cells/skin cellsCulture processBiological materialsLiquid surfaces
The invention discloses a 3D model constructed in vitro by means of a serum-free culture medium as well as a construction method of the 3D model and relates to the technical field of biological materials in tissue engineering. Due to selection variety of seed cells and good in-vitro construction repeatability, industrial preparation of the 3D model can be realized. The model is an in-vitro model formed by primary corneal epithelial cells subjected to tissue isolation, limbal stem cells, immortalized corneal epithelial cells, primary oral epithelial cells or oral mucosa squamous cancer cell lines TR146 subjected to in-vitro amplification and stratified through the serum-free culture medium with an undersurface-gas-liquid surface staged culture method.
Owner:GUANGDONG BOXI BIO TECH CO LTD
Bionic moisture-permeable and sweat-discharge yarn and preparation device and method thereof
InactiveCN107254731ARealize industrial preparationHydrophobicContinuous wound-up machinesOpen-end spinning machinesDifferential effectsFiber
Owner:DONGHUA UNIV
Composite antiknocking material and its production
InactiveCN1940375ASolve the stiffness problemSolving Elasticity ProblemsConstructions elementsMetal layered productsBox modelUltimate tensile strength
The invention relates to an anti-seismic composite material and its manufacturing method. The material is a high-rigidity, high-strength and high-elasticoplastic material and it consists of steel member in a radial arrangement and members with the shock-absorbing performance. The number of two members can be same, or the number of the steel member is more than the number of the members. The method of manufacturing the anti-seismic composite material includes the following steps of preprocessing the steel members; welding the steel members to a box model; pouring melted material liquid with the shock-absorbing performance into the model by casting method and forming by cooling.
Owner:JILIN UNIV
Monatomic platinum doped nano porous metal compound catalyst and preparation method and application thereof
InactiveCN109967094AExcellent electrocatalytic hydrogen evolution performanceImprove electrochemical stabilityCatalyst activation/preparationElectrodesPlatinumHydrogen
The inventi relates to a monatomic platinum doped nano porous metal compound catalyst and a preparation method and application thereof. According to the micro-dissolution phenomena of platinum counterelectrodes under long-term hydrogen evolution conditions, a cyclic potential method is used for doping monatomic platinum into a nanoporous metal compound to obtain the monatomic platinum doped nanoporous metal compound catalyst. The monatomic platinum doped nano porous metal compound catalyst has the electrocatalytic hydrogen evolution performance comparable to or even surpassing that of a commercial Pt / C catalyst at full pH. The preparation process is simple and controllable, the cost is low, the catalyst is environmentally friendly, large-scale and industrialized product can be achieved,and it shows that the catalyst has a broad application prospect.
Owner:HUNAN UNIV
Method for simultaneously separating three main components of bovine milk casein
ActiveCN107840883ARealize industrial preparationSimple processPeptide preparation methodsAnimals/human peptidesBiotechnologyIon exchange
The invention discloses a method for simultaneously separating three main components of bovine milk casein, and aims to provide a method for separating the three main monomer components of casein, which adopts the bovine milk casein as a raw material, adopts a DEAE ion exchange column as separating equipment, and can simultaneously obtain alpha-casein, beta-casein and kappa-casein through one-timeseparation. According to the method provided by the invention, the three casein monomer components can be obtained through one-step separation, separation steps are less, a separation process is simple and easy to operate, a separation condition is mild and easy to implement, the separating equipment is simple and easy, the dosage of chemical reagents is less during a separation process, not onlyis the separation cost of the casein monomers reduced, but also the environment pollution is reduced, and the method meets a new concept on low carbon and environment protection; the average yield for separating the casein monomers is high, the average yield of the alpha-casein can reach 75 percent or more, the average yield of the beta-casein can reach 80 percent or more, and the average yield of the kappa-casein can reach 85 percent or more; the obtained three casein monomers have high purity which can reach to 95 percent or more; the method not only can meet the requirement on preparing the three high-purity casein monomer components in a laboratory, but also can be used for industrially preparing the main monomers of the casein, and is wide in application range.
Owner:GANSU AGRI UNIV
Preparation method of fluorine-doped lithium-rich manganese-based positive electrode material
ActiveCN112701273AImprove cycle performanceImprove doping uniformityCell electrodesSecondary cellsLithiumPhysical chemistry
The invention discloses a preparation method of a fluorine-doped lithium-rich manganese-based positive electrode material. The lithium-rich manganese-based positive electrode material has a chemical general formula of xLi2MnO3.(1-x) LiMO<2-y>F<2y>, wherein x is larger than or equal to 0.1 and smaller than or equal to 0.9, y is larger than 0 and smaller than or equal to 0.05, and M is one or more of Ni, Co, Mn, Cr, Fe, Ti, Mo, Ru, V, Nb, Zr and Sn. The preparation method comprises the following steps of: preparing a fluorine-doped lithium-rich manganese-based precursor through a precipitation reaction by adopting soluble metal salt, a precipitator, a soluble fluorine-containing compound and water; and uniformly mixing the fluorine-doped lithium-rich manganese-based precursor with a lithium salt, and carrying out presintering and high-temperature sintering to obtain the fluorine-doped lithium-rich manganese-based positive electrode material. According to the method, the soluble fluorine-containing compound is used as a fluorine source, fluorine doping is synchronously realized during coprecipitation of the lithium-rich manganese-based precursor, the doping uniformity is relatively good, and the cycle performance of the doped lithium-rich material is greatly improved.
Owner:CHINA AUTOMOTIVE BATTERY RES INST CO LTD
Preparation method of optically pure (-)-clausenamide compound
InactiveCN102249976AOxidation method is environmentally friendlyEasy post-processingOrganic chemistryKetonePhotochemistry
The invention discloses a preparation method of a (-)-clausenamide compound shown in formula (I), which comprises the following steps: catalyzing the asymmetric epoxidation reaction of trans-cinnamate by using fructose-derived chiral ketone or chiral ketone hydrate as a catalyst; and then, sequentially carrying out ester exchange reaction, oxidation reaction, cyclization reaction and reduction reaction to finally obtain the optically pure (-)-clausenamide compound shown in formula (I).
Owner:INST OF CHEM CHINESE ACAD OF SCI
Industrialized preparation method of tantalum-aluminum-codoped lithium-lanthanum zirconate solid-state electrolyte
InactiveCN109052473ASimple preparation processReduce instrument costTantalum compoundsSolid state electrolyteRepeatability
The invention discloses an industrialized preparation method of a tantalum-aluminum-codoped lithium-lanthanum zirconate solid-state electrolyte. The product has a structure expression of Li6.4-XLa3Zr2-XTaXAl0.2O12, wherein X is 0.2 to 0.5. According to the method, a normal-pressure solid-phase sintering method is adopted, the preparation process is simple, used instruments are low in cost and easyin operation, and industrial production is facilitated; although the sintering time is relatively long, the final obtained product is high in density, good in experimental repeatability and high in ionic conductivity. Tantalum of a proper amount and aluminum of a proper amount are codoped, Al plays a role in stabilizing cubical-phase lithium-lanthanum zirconate, and Ta is used for effectively improving the electric conductivity of the lithium-lanthanum zirconate.
Owner:淮安新能源材料技术研究院
Inorganic electrochromic charge storage electrode and preparation method thereof
InactiveCN107315299AIncreased charge storage capacityImprove transmittanceVacuum evaporation coatingSputtering coatingElectricityGas phase
The invention belongs to the technical field of electrochromism, and relates to an inorganic electrochromic charge storage electrode and a preparation method thereof. The method comprises the steps that firstly, a transparent conducting layer as a charge collection layer is deposited on a transparent substrate in a vacuum gas phase deposition mode; secondly, on this basis, a composite preformed film is prepared by using the method of FeO-MoO3-Li2O target material co-deposition, and an electrochromic film with the stoichiometric ratio of a charge storage layer being LiyFe2(MoO4)3(0<=y>=2) is obtained after annealing in an argon-oxygen atmosphere, wherein the electrochromic film as the charge storage layer is a cathodochromic material at the same time. A film electrode used for an electrochromic device is composed of the above three parts. The electrode can be changed between tawney and near achromatic color, the charge storage capacity is high, the transmittance in an oxidation state is high, the driving circuit is low, the performance is stable, and the cycle life is long. The preparation method is simple in process, low in raw material price and suitable for being industrialized, and the electrode is capable of being processed into a large-area intelligent window and other electrochromic devices.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS
Brown electrochromic charge storage electrode and preparation method
ActiveCN107315298AIncreased charge storage capacityIncrease storage capacityVacuum evaporation coatingSputtering coatingElectricityTransmittance
The invention relates to the technical field of electrochromic thin films, in particular to a brown electrochromic charge storage electrode and a preparation method. By means of a vacuum vapor deposition mode, a transparent conducting layer and a LiFe(WO4)2 electrochromic charge storage layer are deposited on a transparent substrate, crystallization is carried out after annealing treatment is carried out, and the electrochromic electrode with the charge storage function is successfully prepared. A LiFe(WO4)2 thin film serves as the electrode charge storage layer and is a cathode off-color material. The charge quantity storage capacity of the electrode is high, pre-lithiation is not needed, the oxidation state transmittance is high, the special adjustment function between brownness and the transparent state is achieved, and the advantages of being good in cycle performance, low in drive voltage, high in environmental suitability and the like are achieved.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS
Method for preparing polyimide-silicon dioxide composite nanofiber membrane with crosslinking morphology
ActiveCN105970487AHigh mechanical strengthGood dimensional stabilityElectro-spinningNon-woven fabricsFiberImide
The invention discloses a method for preparing a polyimide-silicon dioxide composite nanofiber membrane with crosslinking morphology. The method comprises the steps that firstly, a silicon dioxide precursor with a certain proportion is added into a polyimide precursor-polyamide acid, and a polyimide-silicon dioxide precursor composite nanofiber membrane is prepared through electrostatic spinning; secondly, heat treatment is conducted on the fiber membrane to enable part of the fiber membrane to be imidized, acidic vapor etching and hydrolyzing are conducted, high-temperature imidization treatment is conducted, and then the polyimide-silicon dioxide composite nanofiber membrane with the crosslinking morphology is prepared. The fiber membrane prepared through the method has the advantages of being significant in crosslinking structure, uniform in silicon dioxide coating and high in mechanical property; in addition, the crosslinking degree and the pore structure are adjustable and controllable, process organization of the preparation process is easy to achieve, and a good industrialized application prospect is achieved.
Owner:启鼎技术(北京)有限公司
Target exosome and preparation method and application thereof, drug delivery system and drug
PendingCN110227162AOvercome efficiencyOvercome the difficulty of large-scale preparation of secretory mother cells by transfection of genetically engineered plasmidsMacromolecular non-active ingredientsAntineoplastic agentsCross-linkGenetic engineering
The invention provides a preparation method and application of a target exosome which can effectively improve the modifying efficiency of an exosome so as to realize large-scale preparation, a drug delivery system and a drug. The preparation method of the target exosome comprises the following steps S1, performing sulfhydrylation treatment on a target antibody so as to obtain a sulfhydrylation target antibody; and S2, enabling the sulfhydrylation target antibody to be connected with the exosome through a protein cross-linking agent. The target antibody is subjected to sulfhydrylation modification, so that an amino on the antibody is converted into a sulfydryl; and then the exosome and the antibody are in cross-linking combination so that the target exosome is obtained. Compared with a method of obtaining the target exosome through modification in a plasmid transfection manner in the prior art, the preparation method provided by the invention has the advantages that the problems that the transfection efficiency is low in the plasmid process and large-scale preparation and secretion of mother cells through genetic engineering plasmid transfection are difficult to perform can be solved, industrialization preparation of the target exosome can be realized, and the preparation method has important significance in research and application of the exosome as a delivery carrier and a drug carrier.
Owner:TSINGHUA BERKELEY SHENZHEN INST
Method for producing colloidal silica
InactiveCN101547860AHigh viscosityImprove work efficiencySilicon compoundsColloidal silicaHigh concentration
The present invention discloses a method for producing a colloidal silica using silicon metal as a raw material, which enables to produce a colloidal silica having high concentration and low viscosity. Also disclosed a method for producing a colloidal silica using silicon metal as a raw material, which enables to produce a colloidal silica in short time with high yield without comprising a concentration step. Further disclosed is a method for producing a colloidal silica, which enables to easily control the particle size of silica contained in a colloidal silica. Specifically disclosed is a method for producing a colloidal silica comprising a step for obtaining a colloidal silica by reacting silicon metal (Si) with water in an aqueous solution containing an alkaline catalyst and a dispersing agent, wherein the dispersing agent is composed of one or more ionic substances selected from inorganic acids, organic acids and their salts. Also specifically disclosed is a method for producing a colloidal silica comprising a step for controlling the particle size of silica by adjusting the addition rate of silicon metal into an aqueous solution containing an alkaline catalyst and a dispersing agent.
Owner:FUSO CHEM
Industrial production method of Lanzhou hand-pulled beef noodles
InactiveCN105851863AHigh glutenGood flexibilityFood ingredient as taste affecting agentFood ingredient as mouthfeel improving agentFood additiveRefrigeration
The invention provides an industrial production method of Lanzhou hand-pulled beef noodles. The industrial production method comprises the following steps: (1) preparing materials: preparing the following dough mixing raw materials in parts by weight: 400-600 parts of flour, 80-120 parts of vital wheat gluten, 40-80 parts of rice flour, 40-80 parts of lotus root powder, 2-5 parts of salt and 0.5-2 parts of edible alkali; (2) mixing dough; (3) kneading dough; (4) pressing dough; (5) refrigeration: refrigerating wrappers obtained through pressing dough for 2-5 hours at 0-5 DEG C; and (6) molding: making the refrigerated wrappers into noodles with different thicknesses through a dough kneading machine or artificial stretching. According to the industrial production method, conventional pottasche and hand-pulled noodle additives are effectively replaced, the edible safety of the noodles is improved, meanwhile the noodles are smooth in appearance and high in nutritional values; the industrial production of the Lanzhou hand-pulled beef noodles is realized, the noodle making efficiency is greatly improved, the noodles are not sticky to a knife in the process of cutting and are non-sticky to each other, the cooked noodles are soft and glutinous in mouth feel and tough and chewy, and the edible taste is greatly improved.
Owner:LANZHOU MONITOR NIU FOOD & BEVERAGE MANAGEMENT
Method for preparing even and transparent conductive thin film by using electrostatic spinning
ActiveCN107385681ARealize industrial preparationImprove acceleration performanceElectroconductive/antistatic filament manufactureElectro-spinningYarnElectrospinning
The invention belongs to the field of conductive thin film and relates to a method for preparing an even and transparent conductive thin film by using electrostatic spinning. A spinning solution is prepared from 0.1-1.0% of silver nanometer yarn, 0.1-1.0% of surface charge regulator, 1.0-5.0% of polyoxyethylene and the balance water. The method for preparing the even and transparent conductive thin film comprises the steps that the prepared spinning solution is added to a needle cylinder of an electrostatic spinning device, a substrate is placed under a needle of the electrostatic spinning device, and an initial thin film is prepared by the electrostatic spinning device; the initial thin film is placed on a heating stage to be heated, and then immersed in heated ethyl alcohol and water in sequence; finally after the thin film is dried, an ultimate transparent conductive thin film is obtained. The method is easy and fast, the transparent conductive thin film can be prepared on a conventional flat substrate and can also be prepared on an uneven or curved substrate, and the prepared transparent conductive thin film by using the method is excellent in performance and can be widely applied to various electronic devices.
Owner:上海巨尔希电子科技有限公司
A kind of preparation method of seaweed-based activated carbon precursor for supercapacitor
ActiveCN108101051BDeveloped spatial network structureWell-developed pore structureCarbon compoundsHybrid capacitor electrodesCross linkerCell wall
Owner:SHANDONG UNIV
Preparation method of fried-free instant noodles through twice pasting
InactiveCN103976311ARealize industrial preparationAvoid the pitfalls of fryingFood preparationManufacturing technologyInstant noodle
The invention discloses a preparation method of fried-free instant noodles through twice pasting, belonging to the field of food manufacturing technology. The preparation method comprises the following steps: steaming raw noodles, freezing at below 8-below 12 DEG C for 10-12h, thawing, drying and packaging. With the adoption of the twice curing processes of steaming and freezing, the fried-free instant noodles have no oil frying defects, and starch in the noodles is pasted for multiple times, so that the noodle has good reconstitution property and is convenient to store and transport after drying, and the industrial production of the fried-free instant noodles is realized.
Owner:武明德
Production line of electrostatic spinning nanofiber membrane
InactiveCN109291601AEfficient productionContinuous productionLamination ancillary operationsLaminationProduction lineNanofiber
The invention provides a production line of an electrostatic spinning nanofiber membrane. The production line comprises a base fabric unwinding device, a vertical and horizontal tension regulating device, an electrostatic spinning box body, a drying device, a protective layer base fabric unwinding device and a winding device, wherein the base fabric unwinding device is used for unwinding non-wovenbase fabric and conveying the unwound non-woven base fabric to the electrostatic spinning box body, even unfolding of base fabric in the vertical and horizontal direction in a working area of the electrostatic spinning box body is ensured through the vertical and horizontal tension regulating device so as to collect the produced nanofiber membrane on the base fabric, and protective layer base fabric is covered on the surface of the nanofiber membrane through the protective layer base fabric unwinding device; and the drying device is used for evaporating residual solvents in the nanofiber membrane covered by the protective layer base fabric and shaping the nanofiber membrane, and the winding device is used for winding the dried nanofiber membrane. The system has a simple structure and convenient operation, and wide-width electrostatic spinning nanofiber membrane can be produced effectively, continuously and stably, so that industrial preparation of the electrostatic spinning nanofiberis achieved.
Owner:DONGHUA UNIV +1
Preparation technology of MC nylon active material
InactiveCN1718610ARealize industrial preparationRealize streamlined productionCarboxylic acid amide separation/purificationNylon materialEngineering
A process for preparing active nylon MC includes such steps as fusing the nylon monomer, loading in reactor, dewatering, adding catalyst, dewatering, examining specimen, loading in transfer container, proportionally loading in stirrer, adding cocatalyst and stirring.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +4
Gingival epithelium model and in-vitro building method thereof
InactiveCN107312743AGood repeatabilityReduced build timeCulture processEpidermal cells/skin cellsPhases of clinical researchStructure and function
The invention discloses a gingival epithelium model and an in-vitro building method thereof. The method is characterized by including following steps: step 1, primary culture and amplification of gingival epithelium cells; step 2, inoculation culture of gingival epithelium cell sap; step 3, proliferation and differentiation culture of a gingival epithelium model air-liquid face. Human-derived gingival epithelium cells are used, so that model structure and function are closer to normal human gingival epithelium tissue, and detection indexes can be reflected more really; in-vitro building is high in repeatability, and industrial preparation can be realized; an air-liquid face staged culture method ensures different nutritional needs of cells in different stages, shortens building time and lowers production cost; by adding factors into a culture medium, normal stratifying of the model is ensured, influence of this own structure and extracellular microenvironment can further improve a barrier function of the model, and a finally-built in-vitro gingival epithelium model is highly similar to human gingival epithelium tissue in structure and function.
Owner:GUANGDONG BOXI BIO TECH CO LTD
Electrolytic reaction device for preparing graphene
Owner:DEYANG CARBONENE TECH
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