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47results about How to "Suitable for commercial mass production" patented technology
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Method for preparing protein feed and protein feed additive by culturing fly maggots with defined medium
InactiveCN105707442AReduce processing difficultyAvoid wastingFood processingClimate change adaptationFiberAquatic animal
The invention discloses a method for preparing protein feed and a protein feed additive by culturing fly maggots with a defined medium. The fly maggot protein feed is prepared through the steps that the defined medium is inoculated with cyclorrhapha flyblows, culturing is performed for 2-6 days, and then drying is performed; the defined medium is prepared from wheat bran, corn flour, soybean meal and plant fiber powder. According to the method, the fly maggots cultured by the defined medium are adopted as raw materials for preparing the protein feed and the protein feed additive, and therefore continuous breeding all year round can be achieved; the raw materials of the medium are all selected from agricultural leftovers and are high in yield and low in cost, and therefore long-term breeding can be achieved; the defined medium used in the formula is comprehensive and balanced in nutrition and meets the all-aspect fly maggot growth requirements that carbohydrate and an appropriate amount of grease are supplied to fly maggot growth, and maggot protein obtained through culture is beneficial for digestion and absorption of livestock and aquatic animals.
Owner:ZHONGSHAN UNICARE NATURAL MEDICINE +1
Plastic non-chrome roughening treatment method and water-saving electroplating method thereof
ActiveCN108220959AStrong bonding between layersEmission reductionVacuum evaporation coatingSputtering coatingWater savingWastewater
The invention provides a plastic non-chrome roughening treatment method and a water-saving electroplating method thereof. A plastic workpiece is put into a non-chrome roughening solution to be treated; the surface of the treated plastic workpiece is coated with a binding force accelerant in a dipping manner; finally, the plastic workpiece is subject to plasma activation treatment. According to thetechnical scheme, the better interlayer binding force can be achieved between obtained plastic and a coating, the traditional electroplating process can be completely replaced, in the whole process that the surface of the plastic workpiece is electroplated with a chromium film, toxic chemicals of hexavalent chromium or trivalent chromium and the like are not used, the discharge amount of waste water can be 50% of or lower than the discharge amount of traditional electroplated water, the process is stable, commercial mass production is achieved, and the green surface treatment process with thewide prospect is provided.
Owner:蒙城繁枫真空科技有限公司
Refining method of crystal type A azilsartan
The invention relates to the field of medicine, and discloses a refining method of crystal type A azilsartan. The method comprises the following steps: S1, mixing ethyl acetate and absolute ethyl alcohol, heating, and then adding an azilsartan crude product, stirring to be completely dissolved, carrying out filter-pressing; S2, stirring the filtrate in the S1 at 20-25 DEG C to crystallize, filtering, granulating the filter residue through a 24-mesh sieve; drying the raw materials by use of a boiling drying and gradient warming way; drying for 50-70min at an ambient temperature condition, and then drying for 50-70min after warming 40+ / -2 DEG C, wherein the granularity control D (90) is 300-400 microns; drying for 2-3h after warming to 50+ / -2 DEG C, and the granularity control D (90) is 100-200 microns, cooling to obtain an azilsartan finished product. By use of the refining method disclosed by the invention, the dosage of a required organic solvent in refining is greatly reduced; and meanwhile, the stable crystal type A azilsartan is obtained since the raw materials are dried by use of the boiling drying and gradient warming way, the refining yield of 90% or above is acquired, the purity is 99.7% or above, the solvent residue (ethyl alcohol) is less than 0.3%, and the drying time is shortened to 3-6h.
Owner:湖南千金湘江药业股份有限公司
Wet etching-based preparation method for light trapping structure with Ag nanowires embedded into silicon surface
InactiveCN107302040AImprove light trappingIncrease contact areaFinal product manufacturePhotovoltaic energy generationEtchingNanowire
The invention relates to a wet etching-based preparation method for a light trapping structure with Ag nanowires embedded into a silicon surface. The preparation method comprises the following steps of effectively dispersing the Ag nanowires in an ethanol solution by a low-power ultrasonic dispersion means; uniformly coating the dispersed Ag nanowires on a surface of a silicon wafer by a spin-coating mode; and improving contact between the Ag nanowires and the silicon wafer by an annealing mode. By etching of an etching liquid, the Ag nanowires are embedded into the silicon surface to prepare a novel light trapping, resistance reduction and efficiency improving structure. By the structure, the contact area between the Ag nanowires and the silicon surface is remarkably expanded, and meanwhile, the light trapping capability of the Ag nanowires in silicon is greatly improved within a visible light spectral range. The design and the preparation process provide a novel technical means for improving the efficiency of a device such as a silicon thin film solar cell and an LED.
Owner:YANTAI NANSHAN UNIV
Metformin hydrochloride sustained-release tablet and preparation method thereof
ActiveCN111588701ASimple processGood reproducibilityOrganic active ingredientsMetabolism disorderHydroxypropylmethyl celluloseSodium carboxymethylcellulose
The invention discloses a metformin hydrochloride sustained-release tablet and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. The metformin hydrochloride sustained-release tablet comprises metformin hydrochloride, a sustained-release agent, an adhesive, filler, a flow aid, a lubricant and other components, wherein the sustained-release agent comprises sodium carboxymethyl cellulose and hydroxypropyl methyl cellulose K100M, the adhesive is hydroxypropyl methyl cellulose E5, and the ratio of the metformin hydrochloride to the sustained-release agent is 125:(80-120); and the ratio of the metformin hydrochloride to the adhesive is 125:(1.5-3.0), and the preparation process comprises the steps: spraying water, mixing the metformin hydrochloridewith sodium carboxymethyl cellulose, performing granulation so as to obtain particles, performing secondary water spraying, and adding hydroxypropyl methyl cellulose K100M at twice. The method is suitable for industrial production, the product quality is stable, and the obtained metformin hydrochloride sustained-release tablet has uniform and stable release.
Owner:恒昌(广州)新药研究有限公司
Radio frequency identification (RFID) anti-collision method for adaptive back-off mechanism
ActiveCN103020558ANo increase in complexityTake advantage ofSensing record carriersSelf adaptiveComputer science
The invention discloses a radio frequency identification (RFID) anti-collision method for an adaptive back-off mechanism. According to the method, different back-off factors are determined and selected according to collision position conditions in the process of identifying a reader, so that all the labels are efficiently and rapidly identified through the adaptive back-off mechanism. According to the method, the adaptive back-off mechanism can be performed, the identification efficiency is greatly improved, and the mechanism is simple and feasible in structure, short in searching time, low in energy consumption and suitable for an RFID application system with lots of strict label and energy consumption requirements.
Owner:GUANGDONG UNIV OF TECH
Abiraterone acetate pharmaceutical composition, preparation, preparation method and application thereof
ActiveCN113827602AIncrease dissolution ratePromote absorptionOrganic active ingredientsPill deliveryOrganic solventAbiraterone
The invention discloses an abiraterone acetate pharmaceutical composition, a preparation, a preparation method and application thereof. The abiraterone acetate pharmaceutical composition comprises matrix particles and abiraterone acetate, wherein the abiraterone acetate is coated on the surfaces of the matrix particles; and the matrix particles comprise a diluent, a disintegrating agent and an adhesive. The preparation method of the abiraterone acetate pharmaceutical composition comprises the following steps of (1) mixing the diluent, the disintegrating agent, the adhesive and a solvent, and granulating to obtain matrix particles; and (2) dissolving abiraterone acetate in an organic solvent to obtain an abiraterone acetate solution, coating the matrix particles with the abiraterone acetate solution, and drying. According to the abiraterone acetate pharmaceutical composition, the dissolution rate of active ingredients is obviously improved; the medicine absorption is enhanced; the bioavailability is improved; and the taking compliance and safety of a patient are effectively improved.
Owner:武汉九珑人福药业有限责任公司
Preparation method of high-conductivity solid-state battery electrolyte for energy storage charging system battery
PendingCN113161607AImprove ionic conductivityFit closelySolid electrolytesSecondary cellsSolid state electrolyteSolid-state battery
The invention provides a preparation method of a high-conductivity solid-state battery electrolyte for an energy storage charging system battery, which comprises the following steps of (1) weighing lithium oxide, lanthanum oxide (La2O3) and zirconium oxide (ZrO2) as raw materials according to the mass ratio of (7-7.8): 3: 2, mixing to obtain a mixture, and performing ball milling on the mixture by using a high-speed ball mill to obtain mixed powder A, (2) putting the mixed powder A obtained in the step (1) into a crucible, putting the crucible into an atmosphere furnace, sintering, naturally cooling to obtain garnet type electrolyte Li7La3Zr2O12 (LLZO) precursor powder, taking out the precursor powder, and carrying out high-speed ball milling at the same rotating speed and time as that in the step (1) to obtain powder B, and (3) pressing the powder B obtained in the step (2) into an electrolyte sheet by using a tablet press, then putting the electrolyte sheet into a crucible, carrying out landfill sintering by using mother powder, and cooling to room temperature through two-stage sintering to obtain the LLZO solid electrolyte, so that the technical problem of low conductivity of the battery electrolyte of the energy storage charging system can be solved.
Owner:GUANGXI UNIVERSITY OF TECHNOLOGY
Sildenafil citrate chewable tablet and preparation method thereof
ActiveCN112826802ASimple processSuitable for commercial mass productionOrganic active ingredientsOrganic non-active ingredientsPatient complianceDrugs preparations
The invention belongs to the technical field of pharmaceutical preparations, and particularly relates to a sildenafil citrate chewable tablet and a preparation method thereof. The sildenafil citrate chewable tablet is prepared from sildenafil citrate, a filling agent, an excipient, a sweetening agent, a lubricating agent and a compound flavoring agent. According to the invention, dry granulation is carried out for many times, so that the taste of sildenafil citrate is covered; the medicine can be taken without water, and the patient compliance is high; meanwhile, the storage stability of the sildenafil citrate chewable tablet can be effectively improved.
Owner:SHANGHAI PUKANG PHARMA
Fuel cell anode catalyst and preparation method and application thereof
ActiveCN111668501AHighly alkaline HOR activityImprove stabilityCell electrodesPtru catalystColloidal synthesis
The invention provides a fuel cell anode catalyst and a preparation method and application thereof. According to the preparation method, transition metal is used as a metal source, trioctylphosphine oxide is used as a reaction solvent, a reaction product is prepared through a colloid synthesis method, and then the reaction product and a carbon carrier are subjected to a load reaction to obtain theload type transition metal phosphide anode catalyst. The anode catalyst has high-alkalinity HOR activity and high stability, is relatively low in preparation cost, is suitable for commercial mass production, and has a huge application prospect in the field of fuel cells. Specifically, ruthenium acetylacetonate is used as a ruthenium source, trioctylphosphine oxide is used as a reaction solvent, and tri-n-octylphosphine is used as a phosphorus source. The anode catalyst Ru2P / C is prepared according to the preparation method. When the loading capacity of the anode catalyst Ru2P / C is 0.4mgcm<-2>, the peak power of 1.3Wcm<-2> (the current density is 3.0Acm<-2>) can be achieved under the conditions of 80 DEG C and the back pressure of 0.1Mpa. The mass ratio exchange current density (j<0, m>) of the anode catalyst Ru2P / C is 0.27mAmug<-1>, the area ratio exchange current density (j<0, s>) of the anode catalyst Ru2P / C is 0.37mAcm<-2>, and the mass ratio exchange current density and the area ratio exchange current density of the anode catalyst Ru2P / C respectively reach three times of those of the Ru / C.
Owner:SUZHOU INSTITUE OF WUHAN UNIV
Preparation method of candesartan cilexetil tablets
ActiveCN110354086ASimple processReduce processing operationsOrganic active ingredientsPill deliveryWater bathsCellulose
The invention relates to a preparation method of candesartan cilexetil tablets. The preparation method comprises the steps that candesartan cilexetil, lactose, corn starch, hydroxypropyl cellulose andcarboxymethyl cellulose calcium are weighed, pass through a 50-mesh sieve by using a shaking-type granulator and then are mixed for use, wherein the weight ratio of the candesartan cilexetil to polyethylene glycol 6000 is 4:1-4:2, and the weight ratio of the hydroxypropyl cellulose to the carboxymethyl cellulose calcium is 7:0.4-7:1; the polyethylene glycol 6000 is weighed and added to 95% ethanol, stirring is conducted, water-bath heating and dissolution are conducted by controlling the temperature at 50-60 DEG C, and a wetting agent is prepared for use, wherein the weight ratio of the polyethylene glycol 6000 to the 95% ethanol is 1:6.5-1:13; the sieved and mixed materials are placed in a horizontal wet mixing granulator for dry mixing, the prepared wetting agent is added at the liquidadding speed of 7-8 kg / min, granulation is conducted, discharging is conducted after wet mixing is conducted for 4-6 minutes, and wet granules are finished by a 24-mesh stainless steel sieve on the shaking-type granulator; the working procedures of drying, tabletting and the like are conducted.
Owner:HINYE PHARM CO LTD
293T cell culture medium for preparing retroviral vector and preparation method of 293T cell culture medium
InactiveCN110804579AStable proliferationHigh titerCulture processArtificial cell constructsCell culture mediaEssential amino acid
The invention discloses a 293T cell culture medium for preparing a retroviral vector. A DMEM culture medium is used as basic liquid, fetal bovine serum, GlutaMax-I, non-essential amino acids, sodium pyruvate, D-(+)-galactose and Hepes are added to prepare the retroviral vector. The invention further discloses a preparation method of the cell culture medium. The preparation method comprises the following steps of (1) adding the D-(+)-galactose to the DMEM culture medium; (2) enabling the D-(+)-galactose to dissolve completely, sequentially adding the fetal bovine serum, the sodium pyruvate, thenon-essential amino acids, the Hepes and the GlutaMax-I, and performing mixing and dissolving; (3) adding the DMEM culture medium to the mixed liquid prepared in the step (2) until the volume is 1L;and (4) performing filtering to obtain a sterile 293T cell culture medium. Compared with a conventional culture medium, the culture medium disclosed by the invention is favorable for realization of stable proliferation of cells, the packing efficiency of viruses is improved, the virus titer is high, the purity is good, and the 293T cell culture medium is suitable for business batch production.
Owner:无锡生基医药科技有限公司
Preparation method of heat-resistant high-strength Al-Li-Cu-Ce alloy plate
The invention relates to a preparation method of a heat-resistant high-strength Al-Li-Cu-Ce alloy plate. The preparation method improves the heat resistance (heat exposure and high-temperature stretching) of an Al-Li-Cu alloy and realizes the preparation of the heat-resistant high-strength Al-Li-Cu-Ce alloy plate through microalloying of Ce and effective control of the whole process of the preparation process. On the one hand, the precipitation ratio of a T1 (Al2CuLi) phase with heat-resistant potential in the alloy is increased by improving the synergistic effect of Cu / Li in the alloy and pre-deformation before aging, and meanwhile, by adding a trace amount of Ce, coarsening of the T1 (Al2CuLi) phase and refinement of Ce-containing intermetallic compounds can be effectively inhibited by inhibiting diffusion of a main element Cu in the alloy; and the thermal stability and the high-temperature deformation uniformity of the alloy are greatly improved. The method is simple in equipment requirement, high in repeatability and suitable for large-scale commercial production, can be used as a novel aircraft heat-resistant structural part material in the aerospace field, and has a practical application value.
Owner:YANTAI NANSHAN UNIV
Esomeprazole sodium freeze-dried preparation and preparation method thereof
ActiveCN103494778AImprove securityStable and controllable qualityPowder deliveryOrganic active ingredientsEsomeprazole SodiumEdetic Acid
The invention discloses an esomeprazole sodium freeze-dried preparation prepared by freeze-drying a liquid medicine which is prepared by dissolving esomeprazole sodium, alkaline amino acid and sodium hydroxide in water for injection, wherein the contents by mass volume ratio of the someprazole sodium, the alkaline amino acid and the sodium hydroxide are as follows: 20 mg / ml of the someprazole solidum, 0.5-5 mg / ml of the alkaline amino acid and the sodium hydroxide which adjusts the pH value of the liquid medicine within 11.0-12.0. As the alkaline amino acid is adopted as a stabilizing agent, amino bond existing in the alkaline amino acid can improve stability of the esomeprazole sodium in the processes of dissolution, freeze-drying, and storage. However, as alkaline amino acid is essential amino acid for a human body, the disclosed esomeprazole sodium freeze-dried preparation has higher safety in comparison with the existing esomeprazole sodium freeze-dried preparations which almost adopt edetic acid and salts of edetic acid as the stabilizing agent.
Owner:ZHEJIANG YATAI PHARMA
Positive electrode surface modification material and preparation method thereof
PendingCN114388723AEasy transferImprove cycle stabilityElectrode thermal treatmentPositive electrodesMaterials scienceSurface modification
The invention relates to the technical field of energy materials, in particular to a positive electrode surface modification material and a preparation method thereof. The positive electrode surface modified material comprises a positive electrode material part, a doping layer and a coating layer which are sequentially superposed; the positive electrode material part comprises a positive electrode material; the doping layer comprises a positive electrode material and a doping element doped in the positive electrode material. A part of the chemical inert layer is converted into surface doping, so that migration of lithium ions at an interface can be accelerated. Therefore, the synergistic effect of coating and doping can greatly improve the cycling stability and rate capability of the ternary material at the same time.
Owner:SHANGHAI TECH UNIV
Novel lithium-sulfur battery material applied to energy storage system
ActiveCN112993222AShorten the diffusion distanceImprove electrochemical performanceMaterial nanotechnologyCell electrodesTetraethyl orthosilicatePolypropylene
The invention provides a novel lithium-sulfur battery material applied to an energy storage system, a preparation method adopting nitrogen-doped porous carbon fiber composite sulfur as a positive electrode material and a positive electrode plate of the positive electrode material. The preparation method of the composite positive electrode material comprises the following steps: mixing a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, tetraethyl orthosilicate, ethanol, concentrated hydrochloric acid and cyanoguanidine according to a molar ratio of (0.001-0.01): (0.03-0.4): (0.6-1): (0.01-0.1): (0.01-0.5), and stirring until the raw materials are completely dissolved to obtain a solution N; evaporating the solution N to dryness, and heating to obtain a sample E; cooling the product E, adding the product E into an acid solution for etching, and performing suction filtration and evaporation to dryness to obtain nitrogen-doped porous carbon nanofibers; and mixing the nitrogen-doped porous carbon nanofiber with elemental sulfur to obtain the elemental sulfur loaded nitrogen-doped porous carbon nanofiber composite positive electrode material. The material can solve the technical problems of low conductivity of battery positive elemental sulfur and short charge-discharge cycle life of the battery caused by dissolution of polysulfide in electrolyte.
Owner:GUANGXI UNIVERSITY OF TECHNOLOGY
Coin sorting and classifying device
PendingCN108053542AThe structure of the separation device is simpleStrong operabilityCoin/currency accepting devicesElectrical and Electronics engineering
The invention discloses a coin sorting and classifying device. A note and coin sorting mechanism is arranged on the upper portion of a rack, a coin classifying mechanism is arranged on the lower portion of the rack, the note and coin sorting mechanism is located above the coin classifying mechanism, and a coil collection mechanism is laterally located below an output port of the coin classifying mechanism; the note and coin sorting mechanism is used for receiving mixed notes and coins from which the coins need to be separated out, the coin classifying mechanism classifies the coins, and the coin collection mechanism is used for storing the coins which are classified by the coin classifying mechanism. According to the coin sorting and classifying device, by using the characteristic that thecoins are smaller and lighter than the notes, the coins are separated through a screen mesh of the side surface of a box body, by using different diameters of the coins with different face values, the coins are classified according to the different track change conditions after the coins pass through a same baffle, note and coin separation and coin classification are achieved, and the classification precision and efficiency are high.
Owner:ZHEJIANG UNIV
A kind of preparation method of cefditoren pivoxil
ActiveCN103665002BHigh yieldSuitable for commercial mass productionOrganic chemistryCarboxylic acidEsterification reaction
Owner:CHENGDU YILUKANG MEDICAL TECH & SERVICE
Top-emitting qled device and method of making the same
ActiveCN106328824BImprove quantum efficiencyImprove the display effectSolid-state devicesSemiconductor/solid-state device manufacturingElectron holeHole injection layer
The invention provides a top-emitting QLED device, comprising a substrate, a patterned pixel electrode, an electron transport layer, a quantum dot light-emitting layer, a hole transport layer, a hole injection layer and an anode arranged in sequence, the electron transport layer and the A transport intermediate layer is stacked between the quantum dot light-emitting layers, an insulating layer with an array structure is provided between the pixel electrodes of the patterned pixel electrodes, and the insulating layer penetrates the electron transport layer and the transport intermediate layer connected, and the transmission intermediate layer and the insulating layer are both made of PMMA material; on the transmission intermediate layer and corresponding to the insulating layer, isolation columns for isolating quantum dot materials of different colors are provided.
Owner:TCL CORPORATION
A kind of recombinant Lawsonia intracellularis porcine hsp60 protein monoclonal antibody and its application
ActiveCN113444175BPreserve the correct secondary and tertiary structureHas natural biological activityImmunoglobulins against bacteriaGenetic engineeringDiagnosis laboratoryIntestino-intestinal
The invention discloses a recombinant Lawsonia intracellularis Hsp60 protein monoclonal antibody and its application. The heavy chain variable region of the monoclonal antibody includes HCDR1, HCDR2 and HCDR3, and its amino acid sequences are respectively shown in SEQ ID NO.1 , shown in SEQ ID NO.2 and SEQ ID NO.3; the light chain variable region of the monoclonal antibody includes LCDR1, LCDR2 and LCDR3, and its amino acid sequences are as shown in SEQ ID NO.4, SEQ ID NO.5 and Shown in SEQ ID NO.6. The recombinant Lawsonia intracellularis suis Hsp60 protein monoclonal antibody prepared by the present invention has high purity, good specificity and high sensitivity, and has no cross-reactivity with other intestinal pathogenic bacteria, can be used for ELISA and IFA detection, and is useful for clinical LI diagnosis It is of great significance to research and develop laboratory LI diagnostic technology.
Owner:NANJING AGRICULTURAL UNIVERSITY
Application of yeast-like fungus to inhibit downy mildew
ActiveCN106259467AReduce environmental pollutionFast growthBiocideFungicidesPathogenPseudozyma fusiformata
The invention discloses a new application of a yeast-like fungus pseudozyma fusiformata SF6 to inhibit downy mildew, particularly an application of a yeast-like fungus to inhibit a downy mildew disease, an application to prepare an inhibitor for a downy mildew disease, an application to inhibit a downy mildew pathogen, and an application to prepare an inhibitor for a downy mildew pathogen. The bioassay experimental results through a leaf disk assay show that the yeast-like fungus pseudozyma fusiformata SF6 can effectively inhibit the downy mildew of grapes. Through application of the yeast-like fungus pseudozyma fusiformata SF6 to inhibit the downy mildew of grapes or to prepare an inhibitor of the downy mildew disease of grapes, the environmental pollution brought by chemical agents can be reduced. The fungus is fast in growth speed and simple in nutrition, generates no toxin or antibiotics, and is relatively safe. The fungus generates no sensitizing spore, is suitable for commercial mass production, and is low in cost.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
Preparation method of upright Au nanocone with high adhesion to surface of substrate
ActiveCN112018213AImprove stabilityExtended service lifeFinal product manufactureRaman scatteringAdhesion forceAlloy
The invention relates to a preparation method of an upright Au nanocone with high adhesion to the surface of a substrate. The preparation method comprises the following steps: corroding a large numberof nanoscale corrosion holes in the surface of a silicon wafer; evaporating Au on the surface of the silicon wafer, and further forming a large-scale Au-Si binary alloy welding point at the Au-Si interface in the etching hole through annealing to serve as a nano-sized clamping end; and preparing the Au nanocone on the surfaces of the Au foil and Si through mechanical separation. According to thestructure, the binding force of the Au nanocone and the substrate is remarkably improved, and a new technical means is provided for improving the device stability and prolonging the service life of anSERS detector and a solar cell. The design and preparation process disclosed by the invention has no special condition requirements, is easy to operate and simple in equipment requirements, and is particularly suitable for commercial large-scale production.
Owner:YANTAI NANSHAN UNIV
A kind of vertical LED structure and manufacturing method thereof
ActiveCN104409585BReduce manufacturing costSolve the cooling problemSemiconductor devicesEngineeringContact layer
The invention provides a vertical LED structure and a manufacturing method thereof. The manufacturing method comprises the following steps: cutting an epitaxial layer into a plurality of insulated and separated independent light emitting semiconductor layers through the ion implantation technique to replace the traditional complex processes of firstly manufacturing an isolation groove and then filling an insulated material, forming an independent contact layer on each independent light emitting semiconductor layer, then forming a net-shaped-structure DBR reflection layer on each independent contact layer to replace a silver specular reflection layer, and then forming an independent metal function layer on the net-shaped-structure DBR reflection layer. According to the invention, the net-shaped-structure DBR reflection layer is arranged on the independent contact layer to replace the silver specular reflection layer, and the cheap independent metal function layer is arranged on the net-shaped-structure DBR reflection layer, the production cost of an LED is reduced while the problems of brightness improvement and heat dissipation are solved, and the manufacturing method is suitable for large-scale commercialized production.
Owner:HANGZHOU SILAN AZURE
Traditional Chinese medicine for treating infertility caused by impotence
InactiveCN104208241ALong durationDefinite curative effectSexual disorderPlant ingredientsSpermatorrheaEpimedium
The invention provides a traditional Chinese medicine for treating infertility caused by impotence. The traditional Chinese medicine is characterized by being prepared mainly from the following components: 30-40g of epimedium, 30-40g of semen cuscutae, 20-30g of cortex phellodendri, 40-45g of polygonum multiflorum, 10-15g of cornu cervi, 10-15g of angelica sinensis and 10-15g of astragalus membranaceus, wherein the concentration of crude drug is 0.1-1.0g / ml. The traditional Chinese medicine has the effects of reinforcing kidneys to replenish essence and promoting fertility, and is mainly used for treating impotence, spermatorrhea and infertility caused by impotence.
Owner:潘海楠
Preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc
ActiveCN112233702BImprove stabilityImprove efficiencyRecord information storageRecording/reproducing/erasing using optical interference patternsComposite filmTitanium oxide
A preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc relates to the field of information storage technology, and solves the problem of a preparation method for a storage medium with high information storage stability and high diffraction efficiency, including in Prepare a porous titanium dioxide film on a disc-shaped glass substrate; immerse in a carbon quantum dot solution to load the porous titanium dioxide film with carbon quantum dots to obtain a carbon quantum dot / titanium dioxide composite film; immerse in a silver nitrate solution and prepare by irradiating with an ultraviolet lamp Silver / carbon quantum dots / titanium dioxide composite film; a layer of hydrogel is attached by pulling dipping method. The preparation method of the present invention is convenient and reliable, low in cost, and suitable for commercial mass production, and the prepared optical disk has the performance advantages of high stability, high efficiency and high uniformity of information storage, which makes holographic optical storage stand out in the field of future data storage. Possibly, it can be well applied to the field of holographic data storage.
Owner:NORTHEAST NORMAL UNIVERSITY
High-uniformity and high-power laser epitaxial wafer and preparation method thereof
PendingCN114079226ALimit stressReduce stressOptical wave guidanceLaser detailsQuantum wellErbium lasers
The invention relates to a high-uniformity and high-power laser epitaxial wafer and a preparation method thereof. An upper waveguide layer and a lower waveguide layer between a GaAsP quantum well and a GaInP limiting layer are each composed of a GaAsP waveguide layer with gradually-changed P components and a GaAsP waveguide layer with fixed components. The GaAsP component gradient waveguide layer and the GaAsP fixed component waveguide layer not only can play a role in limiting electrons and light fields, but also can well eliminate redundant elements in the reaction chamber before and after the growth of the quantum well, thereby providing a clean environment for the growth of the quantum well, and avoiding the change of parameters such as wavelength, stress, uniformity and the like of an epitaxial wafer due to the influence of background doping. GaAsP is adopted as a quantum well material, the defects that an aluminum-containing active region is prone to oxidation and dark line defects are generated are overcome, the GaAsP quantum well can control the magnitude of tensile strain by controlling the proportion of As to P so as to reduce the threshold value, and TE single-mode output is achieved.
Owner:Shandong Huaguang Optoelectronics Co. Ltd.
A kind of sildenafil citrate chewable tablet and preparation method thereof
ActiveCN112826802BSimple processSuitable for commercial mass productionOrganic active ingredientsOrganic non-active ingredientsPharmaceutical formulationExcipient
Owner:SHANGHAI PUKANG PHARMA
A kind of preparation and modification method of digital pcr chip
ActiveCN110564602BDegree of reductionReduce processing costsBioreactor/fermenter combinationsBiological substance pretreatmentsPcr chipEngineering
Owner:宁波胤瑞生物医学仪器有限责任公司
A method for fabricating upright AU nanocones with high adhesion to substrate surfaces
ActiveCN112018213BImprove stabilityExtended service lifeFinal product manufactureRaman scatteringBinary alloySolar cell
The invention relates to a method for preparing an upright Au nanocone with high adhesion to the surface of a substrate. A large number of nanoscale corrosion holes are etched on the surface of a silicon wafer; Au is evaporated on the surface of a silicon wafer, and further annealed in the etching process. A large-scale Au-Si binary alloy welding point is formed at the Au-Si interface in the hole as the nano-sized clamping end; Au nanocones are prepared on the Au foil and the Si surface by mechanical separation. This structure significantly improves the binding force between the Au nanocones and the substrate, and provides a new technical means for improving the device stability and service life of SERS detectors and solar cells. The design and preparation process of the invention has no special requirements, easy operation and simple equipment requirements, and is especially suitable for commercial large-scale production.
Owner:YANTAI NANSHAN UNIV
Fabrication method of light-trapping structure embedded with ag nanowires on silicon surface based on wet etching
InactiveCN107302040BImprove light trappingIncrease contact areaFinal product manufacturePhotovoltaic energy generationNanowireEtching
The invention relates to a wet etching-based preparation method for a light trapping structure with Ag nanowires embedded into a silicon surface. The preparation method comprises the following steps of effectively dispersing the Ag nanowires in an ethanol solution by a low-power ultrasonic dispersion means; uniformly coating the dispersed Ag nanowires on a surface of a silicon wafer by a spin-coating mode; and improving contact between the Ag nanowires and the silicon wafer by an annealing mode. By etching of an etching liquid, the Ag nanowires are embedded into the silicon surface to prepare a novel light trapping, resistance reduction and efficiency improving structure. By the structure, the contact area between the Ag nanowires and the silicon surface is remarkably expanded, and meanwhile, the light trapping capability of the Ag nanowires in silicon is greatly improved within a visible light spectral range. The design and the preparation process provide a novel technical means for improving the efficiency of a device such as a silicon thin film solar cell and an LED.
Owner:YANTAI NANSHAN UNIV
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