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95results about How to "Help generate" patented technology

Macroporous agarose microspheres and preparation method thereof

The invention relates to a preparation method and a product of macroporous agarose microspheres. The preparation method is characterized by comprising the following steps: adding a high-concentration surface active agent to an agarose aqueous solution to form a large number of micelles in a water phase; dispersing the water phase into an oil phase; and then preparing the macroporous agarose microspheres according to the characteristic that the micelles of the surface active agent in the water phase can absorb the oil and then swells. The prepared product remains the original mesh shaped gel pores of the agarose gel and also has macropores at hundred-nanometer level (100 to 500nm). The preparation method of the macroporous agarose microspheres, provided by the invention, is simple, and the aperture of the product can be controlled; the prepared macroporous agarose microspheres remain the original excellent performances of the agarose gel and greatly increases the aperture, and are ideal liquid phase chromatogram stationary phase medias and excellent immobilized enzyme carriers; and the macroporous agarose microspheres serving as the liquid phase chromatogram media especially can run at higher flow rate, and can realize quick and efficient separation of biomolecule, in particular biomacromolecule.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Electric-heating far-infrared health-protection material, preparation method and application thereof

ActiveCN102702805AIncreased penetrationRestore myocardial tissueLight therapyCoatingsElectrically conductiveElectric heating
The invention discloses electric-heating far-infrared health-protection material, a preparation method and application thereof; the preparation method comprises the following steps: adding white carbon black, nano active calcium silicate, nano precipitated barium sulphate, and nano tourmaline powder to conductive carbon ink according to proportions; stirring and blending manually to obtain a mixture, mixing the mixture in an oil-ink stirring machine for 30 minutes, then grinding the mixture on a three-roller grinding machine for two times; finally, storing the mixture at 20-25 degrees centigrade not less than 24 hours so as to prepare a heating coat layer. According to the invention, the heating coat layer is coated on flexible or rigid base body material in a screen printing method and is placed in an electric-heating constant temperature drying oven; the heating coat layer is dried and cured on conditions of 80 degrees centigrade and 20 minutes plus 120 degrees centigrade and 30 minutes plus 150 degrees centigrade and 30 minutes; electrodes are manufactured and packaged; and nano negative ion cloth or nano tourmaline cloth is coated on the surface of the heating coat layer so as to prepare the electric-heating far-infrared health-protection material. The electric-heating far-infrared health-protection material can be widely used for fields of industry, agriculture, civil, medical treatment and the like.
Owner:张跃进 +2

Steel-based surface chrome-contained abrasion-resistant ceramic coating and preparing method of steel-based surface chrome-contained abrasion-resistant ceramic coating

The invention relates to a steel-based surface chrome-contained abrasion-resistant ceramic coating layer and a preparing method of the steel-based surface chrome-contained abrasion-resistant ceramic coating, and belongs to the technical field of methods for preparing steel-based protective coatings. The steel-based surface chrome-contained abrasion-resistant ceramic coating and the preparing method are characterized in that the steel-based surface chrome-contained abrasion-resistant ceramic coating is composed of silicon carbide ceramic abrasion-resistant powder, silicon dioxide, water glass, ferrochromium powder and the like; structure defects are overcome through the ferrochromium powder, the compactness of the coating structure is improved, and the metallurgical bonding strength between the coating and a steel base is greatly improved. By means of the preparing method, as a two-time curing technology is adopted, the curing time can be shortened, the coating quality can be improved, and a ceramic phase between the steel base and the coating can be easily generated; meanwhile, the coating has the abrasion resistance several times higher than that of the steel base, and the overall performance such as the surface rigidity and the corrosion resistance of the coating is improved. The preparing method is simple, construction is convenient, the production efficiency is high, and the economical effect and the practical effect are achieved. The problem that as a ceramic coating prepared in the prior art is poor in structure compactness, the overall performance of the ceramic coating can not be guaranteed through one-time curing is solved.
Owner:YANGTZE UNIVERSITY

Voltage online coordination control method based on energy margin constraint

The invention relates to the technical field of electric power system transient stability analysis, and discloses a voltage online coordination control method based on energy margin constraint. The voltage online coordination control method based on energy margin constraint comprises the following steps that (2) a system potential energy function model Ep is built, and an energy margin Em is calculated on the basis of the lie derivative; (2) an approximate linear programming problem is formed by using the energy margin Em as an objective function and using the reactive margin and the voltage allowable change range as constraint conditions; (3) a coordination control strategy is obtained to accomplish coordination of various voltage control modes. According to the voltage online coordination control method based on energy margin constraint, various voltage control modes are brought into a uniform energy function frame, the lie derivative is introduced to calculate changes of the energy margin, the approximate linear programming problem is formed by using the situation that the energy margin is larger than or equal to zero as the objective function and using the reactive margin and the voltage change range as the constraint conditions, and the solution of the approximate linear programming problem serves as the coordination control strategy. According to the voltage online coordination control method based on energy margin constraint, the calculation speed can be increased, generation of the online coordination control strategy of various voltage control modes is facilitated, and the safe operation level of a power grid is improved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Device and method for degrading alkaline organic waste water by iron-carbon micro-electrolysis

The invention discloses a device and a method for degrading alkaline organic waste water by iron-carbon micro-electrolysis, and belongs to the field of sewage treatment. The degrading alkaline organic waste water by iron-carbon micro-electrolysis is characterized by consisting of a CO2 pressure air dissolver, an iron-carbon micro-electrolysis device, a tubular reactor and an efficient inclined tube settling tank, wherein organic waste water enters an iron-carbon micro-electrolysis reactor after passing through a screen in the CO2 pressure air dissolver to react with a filler and CO2 micro-nano air bubbles released by a micro-nano aerator, is guided out of a tubular reactor after reacting in a three-dimensional multidimensional micro-electrolysis reaction tank formed by an iron-carbon filler, and finally enters the settling tank after alkaline liquor and a flocculating agent are added. The device can be used for improving the biodegradability of the degraded alkaline organic waste water. Sewage technically adopting pressure dissolving and CO2 gas dispersion enters an iron-carbon micro-electrolysis reactor, so that the filler in the reactor is activated in real time, the generation of hydroxyl radicals (.OH) is strengthened, and the generation amount of the hydroxyl radicals (.OH) is 2-3 times time of that of common iron-carbon micro-electrolysis. According to the process, hardening and blocking phenomena of the iron-carbon filler are avoided, the treatment efficiency is improved, the treatment time is reduced, and the service life of the filler can be prolonged, so that the water quality of effluent water in operation can be stable and reliable.
Owner:UNIV OF SCI & TECH BEIJING

Banana and brown rice blended powder capable of relaxing bowels and preparation method thereof

The invention discloses banana and brown rice blended powder capable of relaxing bowels. The banana and brown rice blended powder is prepared from the following raw materials in parts by weight: 60 to 90 parts of brown rice, 20 to 30 parts of buckwheat, 10 to 15 parts of purple sweet potato whole wheat flour, 8 to 12 parts of jack bean meal, 15 to 20 parts of oat bran, 10 to 15 parts of bananas, 10 to 15 parts of figs, 6 to 9 parts of dragon fruit flowers, 4 to 6 parts of whey protein powder, 4 to 6 parts of corn gluten meal, 1 to 2 parts of Momordica grosvenori, an appropriate amount of high temperature resistant alpha-amylase and an appropriate amount of a stabilizer. By adopting germination, extrusion and coprocessing of the high temperature resistant alpha-amylase, the blending property of puffing powder can be obviously improved, the digestion utilization rate of the powder is greatly improved, water-soluble dietary fiber is extracted through ultrasonic enzymolysis after oat bran degreasing, the raw materials are low in cost, the content of the dietary fiber in a finished product reaches the specification of national high dietary fiber food, the raw materials such as bananas and figs are added to improve the single mouth feel of grains, the palatability of the finished product is improved, and the banana and brown rice blended powder has the health efficacy of relaxing bowels after long-term eating.
Owner:安徽豆宝食品有限公司

Feed capable of improving libido and semen quality of breeding boars and preparation method of feed

The invention discloses a feed capable of improving libido and semen quality of breeding boars and a preparation method of the feed. The feed is prepared from the following raw materials in parts by weight: 150-180 parts of corn flour, 80-100 parts of black bean flour, 50-70 parts of millet flour, 30-40 parts of green oat, 20-30 parts of green wheat, 5-10 parts of black sesame leaves, 5-10 parts of lily, 30-50 parts of dog kidney, 20-30 parts of mutton, 3-5 parts of ginger powder, 2-4 parts of onion powder, 3-4 parts of salt, 2-3 parts of cooking wine, 20-25 parts of leek, 15-20 parts of kelp, 5-10 parts of carrot, 3-5 parts of thick chilli sauce, 0.3-0.5 part of aconite, 2-3 parts of cinnamon, 2-3 parts of songaria cynomorium herb, 1-2 parts of common curculigo rhizome, 2-3 parts of radix astragalim, 10-15 parts of egg yolk powder, 2-3 parts of actinolite micropowder, 1-2 parts of phosphate ore micropowder, and 10-20 parts of additives. The feed provided by the invention has the advantages of significantly improving the libido of breeding boars, improving the ejaculation volume, increasing the sperm density, improving the sperm survival rate, prolonging the sperm survival time, improving and enhancing the production and reproductive performances of the breeding boars, and prolonging the service life of the breeding boars.
Owner:邓衍安

External fixing device with reduction function

The invention discloses an external fixing device with a reduction function. The external fixing device is used in reduction of fracture and external fixing. The external fixing device is composed of guide rails, spicule clips, bending adjusting handles, a hinge, bending adjusting systems, extending and contracting nuts, locking screws and turning handles. The two guide rails are screwed on lateral surfaces of the hinge respectively, the spicule clips are arranged in the guide rails in a penetrating mode respectively, the extending and contracting nuts are screwed on two sides of the spicule clips, the locking nuts are designed on the lateral surfaces of the spicule clips, the bending adjusting handles are screwed at the ends of the hinge, and the bending adjusting systems are installed on the lateral surfaces of the hinge. After spicules are arranged in fracture portions in a penetrating mode and clamped on corresponding portions of the spicule clips, the turning handles are fastened on the corresponding spicules. The external fixing device is used in reduction of fracture and external fixing. The external fixing device finishes traction and compression on fracture sections through spiral force, requires small labor intensity of operators and can finish reduction and fixing of operations in a closure state.
Owner:哈尔滨龙福骨外固定器械开发研究所

Sweet scented osmanthus stomach-invigorating corn brewing powder and preparation method thereof

The invention discloses a sweet scented osmanthus stomach-invigorating corn brewing powder prepared from the following raw materials in parts by weight: 80-120 parts of corn kernels, 20-30 parts of glutinous rice, 30-45 parts of brown rice, 15-20 parts of oat bran, 15-20 parts of sweet-scented osmanthus, 6-9 parts of shiitake mushroom, 8-12 parts of day lily, 10-15 parts of pomegranate, 4-6 parts of whey protein powder, 4-6 parts of a wheat germ powder, 1-2 parts of momordica glycosides, 0.6-0.9 part of citric acid, and a proper amount of a high-temperature-resistant alpha-amylase and a stabilizer. With germination-extrusion puffing-high-temperature-resistant alpha-amylase synergistic treatment, the reconstituability of the puffed powder can be significantly improved, and the digestion utilization rate of the puffed powder is greatly improved; the oat bran is degreased and then is subjected to ultrasonic enzymolysis, water-soluble dietary fibers are extracted, the cost of raw materials is low, the content of the dietary fibers in the finished product meets regulations of national high dietary fiber food; sweet scented osmanthus, pomegranate and other raw materials are added for improving the single mouthfeel of grains and improving the palatability of the finished product; the brewing powder has the health-care effects of invigorating stomach and promoting digestion after being eaten for a long time.
Owner:安徽豆宝食品有限公司

High-temperature-resistant high-wear-resistant nickel-based titanium carbide powder and preparation method thereof

The invention discloses high-temperature-resistant high-wear-resistant nickel-based titanium carbide powder and a preparation method thereof, and belongs to the technical field of surface engineering.The powder comprises 50-75% of TiC and 25-50% of NiCrAlSiX, wherein in NiCrAlSiX, Cr accounts for 20-23%, Al accounts for 7-10%, Si accounts for 1-2.5%, X is W+V, the total amount of X is greater than or equal to 3% and less than or equal to 8%, and the balance Ni. By adding Ni, the stability of Cr in an iron matrix is kept, the precipitation of Cr element in a spraying process is avoided, and the corrosion resistance of a material is improved; by adding a proper amount of Al, the dissolution of TiC can be inhibited, the hardness and toughness of a coating are kept, and meanwhile, the corrosion resistance of a composite material can be improved; by adding a small amount of boron, a spraying process window can be widened; and by adding 5-20% of Mo, the corrosion resistance and wear resistance of the coating are improved. According to the high-temperature-resistant high-wear-resistant nickel-based titanium carbide powder disclosed by the invention, a WC coating is replaced by a TiC coating, and the spraying cost is reduced.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD +1

Production process for extracting shikimic acid from anise

The invention discloses a production process for extracting shikimic acid from anise, which comprises the following steps: (1) pretreatment; (2) primary fermentation: glucose and soybean protein are added into the anise obtained after the pretreatment in the step (1), then water with weight being 1-3 times of that of the anise is added for evenly stirring, and then fermentation is carried out for1-2 days under 25-30 DEG C after zymocyte is added; and the zymocyte comprises rhizopus, trichoderma, aspergillus oryzae, aspergillus niger, colibacillus and lactobacillus plantarum; (3) secondary fermentation: the anise obtained after the primary fermentation in the step (2) is positioned under infrared ray for sterilization, and then the lactobacillus plantarum is added for fermentation; (4) extraction: the anise obtained after the secondary fermentation in the step (3) is positioned in a solvent made from water, ethyl alcohol, methyl alcohol and acetic acid for being soaked, extracted and filtered; the filter liquor is eluted through a chromatographic column; and the eluent is collected for obtaining the shikimic acid after concentration and crystallization. The shikimic acid extractionprocess provided by the invention has higher extraction rate in the shikimic acid.
Owner:那坡康正天然植物提取有限责任公司
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