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667results about How to "Strong maneuverability" patented technology

Method for recycling metal oxide from waste flue gas denitration catalyst

The invention discloses a method for recycling a metal oxide from a waste flue gas denitration catalyst, comprising the following steps of: crushing the waste flue gas denitration catalyst to carry out pre-roasting pretreatment at high temperature; adding Na2CO3 into the waste flue gas denitration catalyst according to the proportion, mixing, pulverizing and roasting at high temperature to obtain a sintering block; crushing the sintering block and putting the crushed sintering block into hot water, and stirring and lixiviating to obtain titanate; adding sulphuric acid into the titanate, filtering, water-washing and roasting to obtain TiO2; adding the sulphuric acid into the lixiviated filtering liquid to regulate a pH value to 8.0-9.0; adding excessive NH4Cl for vanadium precipitation; decomposing NH4VO3 obtained from filtering at high temperature to prepare a V2O5 product; adding hydrochloric acid into the filtering liquid subjected to the vanadium precipitation to regulate a pH value to 4.5-5.0; adding CaCl2 for molybdenum and tungsten precipitation; treating the CaM0O4 and CaWO4, obtained from filtering, with the hydrochloric acid and roasting to obtain MoO3 and WO3. The method of the invention has the advantages of simple process and apparatus, high recycling efficiency, good product technical data, large treatment capacity and the like.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

Method for realizing fast and automatic modeling of transformer substation IEC 61850 by adopting XML information recombination

The invention provides a method for realizing fast and automatic modeling of a transformer substation IEC 61850 by adopting XML information recombination, which is applied to IED modeling of space layers in a digital transformer substation and a traditional transformer substation by adopting IEC 61850 communication. The method comprises the following steps of: recombining the IED information by adopting XML, and providing an IED information standardization interface; editing and setting the standardized XML files; loading an embedded minimum model which accords to the IEC61850 standard; appointing an sAddr information format in advance, automatically adding sAddr information and leading out an ICD model file; analyzing the led-out ICD model file by the IED, and automatically extracting the sAddr information, and automatically mapping model leafage nodes to a real-time database according to the sAddr information; and enabling the information of the real-time database to normally communicate with station control layer equipment by the IED through adopting an IEC61850 protocol. The model collocation can be set by engineering personnel according to actual engineering. Therefore, the invention greatly shortens the time for generating the IEC61850 model, improves the efficiency of production and regulation and is convenient for 61850 engineered actualization and generalization.
Owner:BEIJING SIFANG JIBAO AUTOMATION +1

Method for producing low-temperature cold-pressed and refined tea seed oil

The invention discloses a method for producing low-temperature cold-pressed and refined tea seed oil, and belongs to the technical field of deep processing of agricultural products. The method for producing the cold-pressed and refined tea seed oil comprises the following main processes of: performing low-temperature storage on screened tea seeds, cleaning, grading, shelling, separating, drying, crushing, pressing at a low temperature, filtering, degumming, decolorizing, deodorizing, winterizing, and packing finished refined oil. By the new technology of low-temperature cold pressing and refining, overheating and excessive chemical treatment of the oil in the conventional processing are avoided, meanwhile, the residue of harmful substances produced in the conventional high-temperature processing is effectively reduced at the same time, the production cost is remarkably reduced, the purely natural property of the oil is kept, and physiological active substances in the oil are kept as much as possible. The tea oil produced by the method is light in color, low in acid value and peroxide value, low in phosphorus content, fragrant and rich in nutrition, and has a long storage period; and a feasible new path is provided for deep processing and utilization of the tea seed oil.
Owner:NANJING UNIV OF FINANCE & ECONOMICS +1

Fracturing fracture geological design method of horizontal well of dense gas field

The invention belongs to the field of gas field development and research and particularly relates to a fracturing fracture geological design method of a horizontal well of a dense gas field. The design method takes influences of factors, such as positions of fracturing fractures, arrangement modes of the fracturing fractures, lengths of the fracturing fractures, intervals of the fracturing fractures, and flow conductivity of the fracturing fractures, into account at the same time, a quantitative geological design model of the lengths of the fracturing fractures, the intervals of the fracturing fractures, the flow conductivity of the fracturing fractures is established based on the reservoir permeability, and the blank of the quantitative geological design of the fracturing fractures of the horizontal well is filled. The fracturing fracture geological design method of the horizontal well of the dense gas field is simple, strong in maneuverability, effective and practical when used for guiding fracturing fracture geological design of multistage fracturing horizontal wells of the dense gas field, and the fracturing fracture geological design method of the horizontal well of the dense gas field has good popularization and using value.
Owner:CHINA PETROLEUM & CHEM CORP +1

Deep convolutional neural network based SAR image sea ice sorting method

The invention relates to a deep convolutional neural network based SAR image sea ice sorting method. The method includes steps of S01, segmenting a prior sea ice SAR image; S02, performing data pre-treatment; S03, performing model training and establishing a model; S04, performing treatment on a to-be-sorted sea ice SAR image; S05, combining sorting results. The method is advantaged in that the deep convolutional neural network model constructed in the method can realize characteristic automatic extraction based on images and excessive manual intervention is not needed; the method is an end-to-end SAR image sea ice sorting method and can reach sea ice monitoring service level and meet requirements on real time performance for offshore workers; image characteristics can be extracted automatically depending on a large amount of mark samples by the model and reliance on specialist knowledge is not needed; convergence is accelerated by utilizing a random gradient descending method and model training condition can be judged according to a loss function and accuracy; problems of gradient vanish or gradient diffusion in network parameter optimization counter-propagation are solved by utilizing an normative approach.
Owner:SHANGHAI OCEAN UNIV

Purification process, comprehensive utilization method and application of ganoderma lucidum spores powder

The invention discloses a purification process of ganoderma lucidum spores powder. The process comprises the following steps: removing shells of shell-broken ganoderma lucidum spores powder; after immersing by a 20-95% ethanol solution in volume fraction and water, separating shells to obtain a shell-broken ganoderma lucidum spores powder filtrate and shells of ganoderma lucidum spores powder; concentrating and drying the filtrate to obtain purified ganoderma lucidum spores powder; preparing shell alcohol extract solid powder, dichloromethane extract solid powder, ethyl acetate extract solid powder, shell aqueous extract solid powder, normal butanol extract solid powder, water phase powder or chitosan from shells of ganoderma lucidum spores powder by virtue of a comprehensive recycling process. According to the invention, ineffective component (shells) of the spores powder is separated and effective components (polysaccharide, triterpene and the like) are enriched by breaking shells and purifying, so that the content of the effective components of the purified ganoderma lucidum spores powder is remarkably improved and the effect is remarkably enhanced. The shells are comprehensively utilized, so that the economic benefit is improved.
Owner:JINHUA SHOUXIANGU PHAMACEUTICAL CO LTD

In situ deposit-aqueous interface water-quality sampler and sampling method thereof

The invention relates to an in situ deposit-aqueous interface water-quality sampler and a sampling method thereof. The sampler adopts a group of sampling plates and a group of protecting plates to clamp osmosis membranes and fix the osmosis membranes together by screws; the sampling plate is divided into an interstitial water sampling section of deposit and an overlying water sampling section of an interface in longitudinal direction; a plurality of transverse grooves which have longitudinal intervals of 2mm to 3mm are arranged on the interstitial water sampling section of deposit and the overlying water sampling section of the interface; the volume of the groove is between 2000microlitre to 4000microlitre; an interfacial limiting plate is arranged between the interstitial water sampling section of deposit and the overlying water sampling section of the interface; the sampler realizes in situ collection of deposit-aqueous interface water-quality samples, adopts an interfacial limiting device, and can accurately determine the deposit-aqueous interface; the sampler is equipped with a weight drop and a retrieve rope, can be used in aquatic deeper lakes, and has operability, site throwing and convenient retrieving; and the volume of each layer of water-quality sampling room reaches to 4000microlitre and can complete more index analysis simultaneously.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Production method of large high chromium steel cold roll blank

A production method for the blank of large cold-rolling high-Cr steel roller includes smelting in arc furnace, refining outside the furnace, conveying hot steel ingot, heating in high-temp homogenizing mode, drawing by V-shaped stock, upsetting twice, and post treating. Its advantages are short productive period and low cost.
Owner:SHANGHAI IRON & STEEL CO LTD NO 5 BAOSHAN IRON & STEEL GRP

Loach fish fry artificial propagation method

The invention discloses a loach fish fry artificial propagation method. The loach fish fry artificial propagation method comprises the following steps: parent fish rearing and selecting; artificial induction; fertilization process; and fertilized egg hatching process. The loach fish fry artificial propagation method can excellently improve induction rate, fertilization rate and hatching rate, and especially improves post-natal survival rate of the parent fish. The loach fish fry artificial propagation method can achieve loach fish fry industrialized production, provides offspring seeds for large-scale farming, and acquires excellent economic efficiency, by using the loach fish fry artificial propagation method the post-natal survival rate of the parent fish is 90.87 percents, increasing by 40.87 percents; the induction rate is 91 percents, increasing by 11 percents; the fertilization rate is 96.67 percents, increasing by 1.67 percents; and the hatching rate is 91.07 percents, increasing by 11.07 percents.
Owner:SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI +1

Cathode diachylon used for power-type lead-acid storage battery and manufacture method thereof

The invention discloses cathode diachylon used for a power-type lead-acid storage battery, comprising the following components: 100kg of lead powder, 0.10-0.12kg of short fiber, 0.40-0.60kg of humic acid, 0.12-0.30kg of sodium lignin sulfonate, 1.00-2.00kg of acetylene black, 1.00-1.50kg of conduction graphite, 2.00-3.00kg of activated carbon, 0.60-1.00kg of barium sulphate, 15000-22000g of deionized water and 7200-6000ml of sulfuric acid with the concentration of 1.30-1.40g / cm<3>(25 DEG C). The cathode diachylon has the beneficial effect that the power-type battery produced by the cathode diachylon has the advantages of high specific energy and good large current discharging capability, the low-temperature volume and cycle life are obviously improved.
Owner:SHANDONG SACRED SUN POWER SOURCES

Preparation method of porous graphene

The invention discloses a preparation method of porous graphene. The preparation method comprises the following steps of: (1) mixing intercalated graphite with a polar solvent to ensure that the polar solvent is fully absorbed by the intercalated graphite; and (2) carrying out microwave radiation on the intercalated graphite with the polar solvent to ensure that the intercalated graphite is fully dissociated to form graphene and a plurality of holes are formed in the surface of the graphene, thereby obtaining perforated thin-layer graphene. Preferably, the preparation method also comprises the following steps of fully washing and drying the perforated thin-layer graphene to obtain the target product. The preparation method disclosed by the invention is simple in process, strong in operability and beneficial to preparing perforated thin-layer graphene powder at a low cost and on a large scale; and the obtained thin-layer graphene with a porous structure has the advantages of high specific surface area, permeability of the solvent and good application prospect.
Owner:苏州格瑞丰纳米科技有限公司

Method for cultivating asparaguses in North China

The invention discloses a method for cultivating asparaguses in North China. The method comprises the following steps: selecting soil conditions and seeds, growing seedlings, sowing, field planting, managing after field planting and controlling pests. Compared with the prior art, the method of the invention systematically provides a complete set of technological measures for cultivating asparaguses in a modeled manner, has strong operability and is convenient to use. The cultivating effect is stable and reliable, and the quality of the asparaguses is guaranteed, because the method is based on the related agricultural climate conditions and the characteristics of growth and development of the asparagus plant.
Owner:常熟市尚湖农业生态园有限公司

Construction method of bearing frame of corridor structure

The invention relates to a construction method of a bearing frame of a corridor structure. The construction method is realized by adopting a platform-type structural steel combination force bearing platform, and erecting full scaffolds on the platform for supporting a template. According to the construction method disclosed by the invention, corbels which are arranged on a shear wall and columns in design and are specially used as structural steel holding points are utilized for erecting full load bearing frames. A platform-type template bearing system is provided with four layers of frame bodies in total, is formed by combining a template supporting load bearing system built at the first two layers and an operation and protection platform built at the next two layers, and is a novel innovative template supporting load bearing system with strong operability, higher safety and shorter construction period.
Owner:ZHEJIANG CONSTR ENG GRP CO LTD

Sediment covered restoring method for eutrophic water

ActiveCN101200315AThe technical process is not complicatedStrong maneuverabilityWater/sewage treatmentStream regulationEutrophic waterAlgae
The invention relates to a sediment shielding and remediation method of eutrophic water body, which adopts the following steps: 1. the selection of shielding materials: the shielding material adopts clay; 2. the pretreatment of shielding material and additive: after smashed, all are sieved by 300 meshes, after then dried for 3h at 200 DEG C, and placed in drier for standby; 3. the pretreated shielding material is added with appropriate additive; 4. the shielding material in the step 3 is directly applied into the lake water body; 5. the shielding effect is tested; 6. according to the test result in the step 5, the amount of the shielding material is adjusted and the types or amounts of the additive is adjusted. Compared with the prior art, the invention has essential difference. In the invention suitable time is selected, the laterite and auxiliary materials are directly applied into the lake water body. Nitrogen, phosphor and other nutritious salts in the water body can be removed, simultaneously a layer of film is formed on the surface of the sediment so as to block the release of nitrogen, phosphor and other nutritious salts in the sediment and the floating and breeding of algae biology, thereby reaching the purpose of treatment.
Owner:常熟紫金知识产权服务有限公司

Multiple-interlayer salt cavern gas storage and building method of multiple-interlayer salt cavern gas storage

The invention belongs to the field of oil and gas resource development and particularly relates to a multiple-interlayer salt cavern gas storage and a building method of the multiple-interlayer salt cavern gas storage. The multiple-interlayer salt cavern gas storage comprises a salt cavern and a natural gas injection-production string system, wherein the natural gas injection-production string system is connected with the top of the salt cavern. Top mud rocks, multiple-interlayer salt rocks and bottom mud rocks are sequentially arranged downwards from the ground. The multiple-interlayer salt rocks are composed of salt rocks and interlayers which alternately appear. The multiple-interlayer salt cavern gas storage is characterized in that the salt cavern is positioned in the multiple-interlayer salt rocks; a first salt rock layer, the interlayer and a second salt rock layer are sequentially arranged from the bottom of the top mud rocks to the top of the salt cavern; and the top of the salt cavern is in the shape of circular plane. The building method of the multiple-interlayer salt cavern gas storage comprises the following steps of: selecting top structure, drilling a well, completing the well, installing the injection-production string, carrying out solution mining, and controlling the size of the top structure. According to the building method, the characteristics of the top structure of the multiple-interlayer salt cavern gas storage are mainly considered, the parameters of the size of the top structure are provided, the operability is strong, and the cost is not obviously increased. The building method is good in popularization.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

3D printing method of composite parts based on three-cylinder former

The invention discloses a 3D printing method of composite parts based on a three-cylinder former. The method includes the steps of designing a part model with 3D software; based on the 3D model, marking parts of different materials, applying same marks to parts of same material, and applying different marks to parts of different materials; slicing and layering the 3D model; pre-storing required powder material in each powder cylinder of a 3D printer, controlling a system of the 3D printer according to outlines of slices of the 3D model, controlling two feed cylinders to feed the powder to a forming cylinder, and laser-melting and sintering the powder to finish one layer; controlling to descend the forming cylinder by one layer thickness, repeating the step of powder spreading, stacking layer by layer, and completing 3D printing of composite once directly. The method has the advantages that part structures are lightened and structure attributes and function attributes are combined by making full use of excellent performances of metal materials and nonmetal materials.
Owner:SOUTH CHINA UNIV OF TECH

Method for preparing tungsten carbide nano-powder

The invention discloses a method for preparing tungsten carbide nano-powder. The method comprises the following steps of: dissolving ammonium paratungstate and citric acid in deionized water, and performing complexation in water bath; filtering and drying to obtain a precursor of tungsten oxide, and calcining under air atmosphere to obtain tungsten oxide powder; putting the obtained tungsten oxide powder in a tube furnace, introducing ammonia and nitriding to obtain tungsten nitride powder; mixing the obtained tungsten nitride powder and carbon black, performing ball milling, performing rotary evaporation drying and performing heat treatment under the air pressure of less than 200 Pa or inert atmosphere; or putting the obtained tungsten nitride powder in the tube furnace, and introducing the mixed gas of methane and hydrogen and carbonizing to obtain the tungsten carbide nano-powder. The preparation process of the method is simple, practical, and high in controllability and can easily realize large-scale production; the particle size of the prepared powder is small, the particle size distribution is uniform and the aggregation degree is low; and the method has high sintering activity, and densification can be realized by performing hot pressing sintering at the temperature of 1,700 DEG C.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI

Method for preventing drilling collapse of downhole coal bed

The invention discloses a method for preventing drilling collapse of a downhole coal bed and belongs to a method for preventing drilling collapse. During constructing a gas extraction hole of the coal bed, a drill bit retreats a certain distance after arriving a finished hole position, porous materials in a porous material conveying device are conveyed to a reserved filling section of the front end of the drill bit through an inner hole of a drill rod by the aid of the compressed air. Then the porous materials are conveyed once when the drill bit retreats a certain distance each time until the drill bit retreats to a preset sealed hole position. Porous materials reserved in holes can support hole walls to prevent collapse, and meanwhile, gaps between the holes and the porous materials provide good passages for gas suction and flowing, gas of the coal bed can be guaranteed to leak from the drilled holes to some extent even if the drilled holes collapse. The method for preventing drilling collapse of the downhole coal bed has the advantages that system and process are unique, drilling gas extraction is high in flow and concentration, the method has widely practicality and is particularly applicable to drilling of the coal bed with firmness coefficient f smaller than 0.5.
Owner:CHINA UNIV OF MINING & TECH

Controllable cross-linked gel water plugging and leak plugging material for oil and gas field

InactiveCN102618230AImproves integrity and strengthStrong maneuverabilityDrilling compositionIonChemistry
The invention relates to a controllable cross-linked gel water plugging and leak plugging material for an oil and gas field, which can plug cracked or solution-opened leak formation, and increase the gel strength. The technical scheme adopted by the invention is as follows: firstly adding acrylamide, chromium trichloride and N,N-methylene bisacrylamide to a beaker holding deionized water, after dissolving, adding an initiator, standing at room temperature for 1h to obtain gel, granulating, drying and screening to obtain solid particulates; adding Span-80 to cyclohexane to prepare an oil phase; dissolving acrylamide and N,N-methylene bisacrylamide in deionized water to prepare a water phase; adding the solid particulates to the water phase, uniformly mixing, then adding to the oil phase, sufficiently stirring, dropwise adding the initiator, reacting for 2h, adding a dispersant, filtering, washing and drying to obtain wrapping particles, wherein the wrapping particles can be wrapped again; and adding the particles to HPAM (hydrolyzed polyacrylamide) aqueous solution, and performing cross-linking reaction to obtain immobile gel. The production process of the material is strong in operability and low in cost; and the material has the characteristics of low filter loss, good airtightness and good stability.
Owner:SOUTHWEST PETROLEUM UNIV

Cold-patch asphalt modified liquid and production method thereof

The invention provides a cold-patch asphalt modified liquid and a production method thereof. The cold-patch asphalt modified liquid comprises the following components by weight: 5-8% of one or a mixture of butadiene styrene rubber (BSR) and styrene-butadiene-styrene (SBS), 3-5% of naphthenic oil, 3-5% of glycerol, 3-5% of dibutyl ester, 0-3% of an anti-stripping agent and the balance of heavy diesel oil. The production method of the asphalt modified liquid comprises the following steps: (1) screening an asphalt modifying agent through an oscillating screen with sieve pores of 0.6cm, and clearing away caking; (2) adding the asphalt modifying agent and the heavy diesel oil into a stirrer in proportion for stirring for 3-4 hours until the asphalt modifying agent is completely and uniformly dispersed in the diesel oil and turned into a light brown paste; and (3) adding the naphthenic oil, the glycerol, the dibutyl ester and the anti-stripping agent in proportion, together stirring the added components for 30-40 minutes, and then storing for later use. The cold-patch asphalt modified liquid has the advantages of long storage period, good operability, simple production process, abundant material resource, environment friendly production, convenience in use, and the like.
Owner:广东能达公路养护股份有限公司

Automatic programming system and method based on augmented reality, for movement track of robot

The invention relates to an automatic programming system and method based on augmented reality, for the movement track of a robot. The automatic programming system and method can be widely applied tothe field of robot automation. The invention discloses the equipment composition of the automatic programming system based on augmented reality, for the movement track of the robot; on the basis of the equipment, coarse positioning for a workpiece to be machined is completed under the aid of augmented reality at first; then the workpiece to be machined is contacted by an end executer of the robotand by virtue of rapid teaching to acquire a series of feature points, then a transfer matrix between the base coordinate system of an industrial robot and the coordinate system of a virtual workpieceis obtained through the matching of the feature points and corresponding edges or surfaces on the three-dimensional model of the virtual workpiece, and then the movement track of the industrial robotis obtained. The system and the method are capable of realizing automatic programming under the rapid teaching, applicable to the workpieces to be machined and with random shapes or poses, and obvious in advantages compared with the existing online teaching or off-line programming method, and achieve the requirements of flexible manufacturing in the aspects of adaptability and high efficiency.
Owner:群青华创(洛阳)机器人科技有限公司 +1

Flame tube head assembly brazing method

The invention discloses a flame tube head assembly brazing method and belongs to the technical field of aero-engine part manufacturing. In a brazing method of a traditional flame tube head assembly, an assembly substrate at a positioning welding point is oxidized due to the fact that a tube front section and a splash pan are positioned through argon arc welding, so that during brazing, brazing filter metal cannot moisten the substrate at the positioning welding point, the brazing seam is not continuous, and a design requirement of a continuous brazing seam cannot be achieved, and after brazing, a cold air hole is blocked by the brazing filter metal, the brazed rate between a sleeve and a swirler cannot achieve a design requirement of more than 80%. The flame tube head assembly brazing method has the advantages that the assembly substrate at the positioning welding point is avoided from being oxidized due to positioning through energy storage spot welding, enabling the paste brazing filter metal to moisten the substrate at the positioning welding point and guaranteeing the continuous brazing seam design requirement; enabling a to-be-welded position on the internal side of the sleeve to satisfy the brazed rate requirement and avoiding the brazing filter metal blocking the cold air hole during the brazing process due to the fact that check soldering flux pains inside the cold air hole; the operability is strong and production costs are obviously reduced.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Artificial propagation method for botia superciliaris

The invention discloses an artificial propagation method for botia superciliaris. The method comprises the following steps of 1 wild parent fish collecting and domesticating, 2 parent fish breeding, 3 artificial spawning, 4 artificial inseminating and 5 artificial incubating. The method is simple, high in operability and good in practical applicability, large-scale and industrialized production of botia superciliaris fries can be achieved, development of botia superciliaris breeding industry is promoted, and botia superciliaris wild resources are effectively protected. Tests show that the survival rate of the botia superciliaris bred in a circulating water system ranges from 80% to 85%, the induced spawning rate ranges from 70% to 75%, the fertilization rate ranges from 40% to 45%, and the incubating rate ranges from 70% to 80%.
Owner:武汉中科瑞华生态科技股份有限公司

Method for detecting oil field fluid-channeling channel

The invention provides a method for detecting oil field fluid channeling, utilizing water-containing index characteristic curve to measure the performance of production well in the oil field, concretely speaking: collecting oil output and fluid output of the oil well from starting to test at regular intervals; calculating water-oil ratio or water ratio of the oil well at regular intervals; finding first-order derivative of common logarithm of the water-oil ratio or water ratio to common logarithm of time, namely the water-containing index; using the water-containing index as vertical coordinate and producing time as horizontal coordinate to make its half-logarithm relation curve and obtaining the water- containing index characteristic curve; detecting the type of the fluid channeling according to the shape of the water-containing index characteristic curve. And the method has objectivity and strong operability.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Preparation method of nanometer magnesium silicate hydroxide, and preparation method and application of anti-wear agent

The invention discloses a preparation method of nanometer magnesium silicate hydroxide, and a preparation method and an application of an anti-wear agent. The preparation method of nanometer magnesium silicate hydroxide comprises the following steps: 1, providing magnesium oxide and silica according to a predetermined mass ratio, and mixing magnesium oxide and silica with a predetermined concentration of a sodium hydroxide solution to obtain a mixed solution; 2, reacting the mixed solution at a predetermined temperature for a predetermined time to obtain a reacted mixed solution; 3, cleaning and filtering the reacted mixed solution until the pH value of the reacted mixed solution is smaller than 8, and filtering to obtain a filtration product; and 4, drying the filtration product to obtain the nanometer magnesium silicate hydroxide. The preparation method of the nanometer magnesium silicate hydroxide disclosed in the embodiment of the invention has the advantages of simplicity, feasibility, strong operability, and realization of the controllable synthesis of magnesium silicate hydroxide nanoparticles through controlling the reaction time.
Owner:BEIJING JIAOTONG UNIV

Efficient biochemical fulvic acid preparing process

The efficient biochemical fulvic acid preparing process is to utilize, enrich and culture humic acid producing bacteria and auxiliary bacteria existing in nature to form specific fulvic acid producing bacteria. The fermented material includes crop stalks, saw dust and other agricultural and forest waste and some inorganic nutrient components as well as fulvic acid producing bacteria, and through controlling nutrients compounding ratio, water content, temperature, humidity and other technological parameters, fulvic acid is produced through directional fermentation. The present invention has the advantages of short fermentation period, low cost, high fulvic acid content, high product quality and easy control of the production process. The fermented product contains great amount of fulvic acid, amino acid, nucleic acid and other matters, and may be used widely in plantation, stockbreeding, aquiculture, industrial fermentation, medicine, pesticide and other industry.
Owner:郭伟光

Metal defect detection method of laser-electromagnetic ultrasonic nondestructive testing system

The invention relates to a metal defect detection method of a laser-electromagnetic ultrasonic nondestructive testing system. The method adopts the laser-electromagnetic ultrasonic testing system composed of a pulsed laser, a linear focusing unit, a transverse wave electromagnetic ultrasonic sensor, a three-dimensional mechanical stepping device, a signal amplification filtering system, a digital oscilloscope and a computer. The system is utilized to excite a Gaussian laser pulse, which is then delivered to the surface of a metal material through an optical focusing system, and at the same time surface waves as well as transverse waves are excited. The transverse wave electromagnetic ultrasonic sensor is used for receiving, and on the basis, positioning detection of the surface and near surface defects can be performed. The method makes use of the transverse wave electromagnetic ultrasonic sensor to receive diffraction transverse waves generated when the transverse waves encounter an internal defect, and when the sensor is position right above a metal material internal defect, the received diffraction transverse wave signal has the strongest amplitude, so that the horizontal position of the defect can be determined, and the vertical position of the defect can be determined by the defect echo time. The method can realize detection of metal material surface, near surface and internal defects at the same time.
Owner:山东山科光电技术与装备研究院有限公司

Mcthod for rccovering and rebuilding vegetation of Chinese wildrye in soda saline land

InactiveCN1625936AStrong maneuverabilityReduce the cost of artificial breedingHorticulture methodsPloughRevegetation
A method for restoring and recultivating the vegetation of Aneurolepidium Chinese on the soda-type saline-alkaline land includes choosing the seedlings of Aneurolepidium chinese, plough by 5-15 cm in depth, flood irrigation, leveling, making ridges or beds, transplanting by a certain density, and irrigation.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Method for mixing soft tissue filling agent with anesthetic injecta before use

The invention discloses a method for mixing soft tissue filling agent with anesthetics injecta before use. The method comprises the following steps of: injecting anesthetics injecta into a prefilling injector filled with soft tissue filling agent by a microsyringe for multiple times, after the anesthetics injecta is injected, stewing for a short time, and then performing even mixing. According to the method, the pain caused by the cosmetic injection can be avoided, the method is high in operability, and is low in technical requirements on operating personnel, and the anesthetics injecta and the soft tissue filling agent can be evenly mixed with each other conveniently and quickly. Compared with the existing method for preparing the preparation by directly adding the anesthetics into hyaluronic acid gel, the method has the advantage of not needing the compatibility test, the stability test and even the clinic test of two drugs under the condition of high-temperature sterilization, so that the method is low in cost. Furthermore, after the mixing is carried out by the method, the soft tissue filling agent is free from the chemical reaction phenomena such as degradation, precipitation, turbidness and the like, so that the method is safe.
Owner:SHANDONG BLOOMAGE HYINC BIOPHARM CORP LTD
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