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473results about How to "Improve function and effect" patented technology

3-Cyanoquinoline derivative, preparation method and medical use thereof

The invention discloses a making method of compound I and drug composition and application to treat tumour, which is 3-cyano quinoline derivant (I) as dual-inhibitor protein kinase of tyrosine and nitric oxide synthase, wherein G1, G2, G3, G4, X, Z and n are defined as instruction.
Owner:CHINA PHARM UNIV

A cordyceps sinensis enzyme and a preparation method thereof

The present invention provides a cordyceps sinensis enzyme and a preparation method thereof. The enzyme is prepared by fermenting the following ingredients in parts by weight: fruits and vegetables 55-70 parts, fungi 8-12 parts, cordyceps sinensis 1-2 parts and sugar 15-20 parts with the addition of probiotic 0.2-0.8 part. The preparation method comprises the following steps: preparing cordyceps sinensis sporoderm-broken powder, preparing primary enzyme solution, fermenting the powder and the solution for preparing the cordyceps sinensis enzyme, etc. The enzyme uses ultramicro crushing technology to crush the cordyceps sinensis, and low temperature or room temperature sporoderm-breaking technology to conduct sporoderm-breaking on the cordyceps sinensis so that the nutrition loss of the cordyceps sinensis is prevented and the absorption rate of the cordyceps sinensis is improved; the enzyme utilizes rich enzyme systems of enzymes to conduct additional sporoderm-breaking on the sporoderm-broken powder, which facilitates the release and homogenization of active ingredients in the cordyceps sinensis, and improves the effect of drugs. The prepared enzyme contains proteins, amino acids, vitamins, enzyme substances, etc. essential for human bodies, effectively accumulates functional components of the cordyceps sinensis, and effectively improves various health-care effects of the enzymes.
Owner:西藏月王药诊生态藏药科技有限公司

Novel technics of cassiterite clay flotation

ActiveCN101081377AConsistent structure principleImprove beneficiation indexFlotationCassiteriteSlurry
The present invention relates to fine and superfine cassiterite recovering technology. The whole production process of recovering cassiterite includes the following steps: collecting the fine grain ore slurry, dewatering to stabilize, floating all cassiterite of different sizes by means of proper amount of floating agent, dispersion dewatering, shaking table recovering large cassiterite, dispersion floating the desilting from dispersion dewatering, and depositing and dewatering the ultimate tin concentrate.
Owner:广西华锡矿业有限公司铜坑矿业分公司

Method and device for cleaning space debris

The invention discloses a method and device for cleaning space debris. According to the method, electromagnetic force is applied to the space debris running on an original orbit; the speed and / or direction of the space debris are / is changed under the action of the electromagnetic force; the space debris of which the speed is changed is changed to run on a new orbit under the action of gravity; at least the height of the perigee of the space debris on the new orbit is smaller than the height of the perigee of the space debris on the original orbit; the space debris running on the new orbit finally falls into the atmosphere of the earth under the action of atmosphere resistance. The device comprises a satellite bearing platform which is provided with an electric field device cleaning the space debris or a magnetic field device cleaning the space debris or a combination of the electric field device and the magnetic field device. The method and device for cleaning the space debris do not have high requirements for the accuracy of position detection of the space debris, micro space debris can be effectively cleaned, solar energy can be fully utilized for power generation, and self-carried energy is saved. The device for cleaning the space debris has the advantages of being simple in structure, low in manufacturing cost, and better in pulse action effect.
Owner:李怡勇 +3

Method for preparing high-purity rice protein and acquired products by using same

The invention relates to a method for preparing high-purity rice protein. The method comprises the following steps: sizing mixing and grinding, degreasing, enzymolysis reaction, separating washing and blanching and sterilization. The invention also relates to the high-purity rice protein acquired by using the method, wherein the rice protein contains following components by weight percent: more than 80% of protein, less than 3% of fat, and less than 3% of ash content. The protein extraction ratio is more than 80% and the additional value of rice residue is greatly increased.
Owner:WUXI JINNONG BIOTECH CO LTD

Magnetic induction intensity sensing head and magnetic induction intensity measurement method and device thereof

InactiveCN101598773AImplement Compensation MeasurementsAddressing Cross SensitivityMagnetic field measurement using magneto-optic devicesFiberGrating
The invention relates to a magnetic induction intensity sensing head and a magnetic induction intensity measurement method and a device thereof; and the invention is characterized in that a magnetic field sensing head is placed in a magnetic field to be measured, and a fiber bragg grating FPI adhered on magnetostrictive materials senses ambient temperature, offset magnetic field, modulated magnetic field and the magnetic field to be measured. A light signal emitted by a monochromatic light source enters fiber bragg grating F-P cavity and forms a similar two beam interference signal after interference to be output. Cavity length variation amount of the fiber bragg grating F-P cavity is obtained according to the two beam interference signal, and measurement value is obtained according to linear relation of the cavity length variation amount and magnetic field intensity. And finally, compensation relation between the magnetic field intensity measurement value and actual value to be measured on temperature and relation of the magnetic filed intensity and the magnetic induction intensity are utilized to obtain actual value of the magnetic induction intensity. The invention can measure both direct current magnetic field and alternate current magnetic field and has higher sensibility of measurement towards a weaker magnetic field.
Owner:JIANGSU YAWEI TRANSFORMER +1

Method for preparing metallic-matrix ceramic coating by using laser cladding assisted by heat, sound and magnetic complex energy field

The invention provides a method for preparing a metallic-matrix ceramic coating by using laser cladding assisted by a heat, sound and magnetic complex energy field. The method is characterized in that the high-performance non-defective metallic-matrix ceramic coating is prepared by adopting a multi-energy-field-assisted laser cladding method which combines induction heating with an electromagnetic-ultrasonic complex energy field; a base material is preheated in real time by a high-frequency induction heating device, meanwhile, an electromagnetic-ultrasonic complex energy field device is started and used for acting on a melting pool, and the induction heating device is used for carrying out slow cooling treatment on the coating again after cladding is finished; the effects of refining crystal grains and removing cracks and pores are achieved while the laser cladding efficiency and the powder utilization rate are improved; the high-performance cladding layer which is uniform in ceramic particle reinforced phase distribution and has a refined microstructure is finally obtained. By introducing the electromagnetic-ultrasonic complex energy field for acting on the laser melting pool, the high-performance cladding layer which is uniform in ceramic particle reinforced phase distribution, has a refined and uniform microstructure and is free from crack and pore defects can be obtained in an efficient and rapid induction heating-assisted laser cladding process.
Owner:JIANGSU UNIV

Quinoline derivative, preparation method and medical use thereof

The invention discloses a making method of compound I and drug composition and application to treat tumour, which is 3-nitrile quinoline derivant (I) as dual-inhibitor protein kinase of tyrosine and nitric oxide synthase, wherein G1, G2, G3, G4, X, Z and n are defined as instruction.
Owner:CHINA PHARM UNIV

Pseudomonas nudiflora extract and its preparation method and application

The invention provides a callicarpa nudiflora extract, and a preparation method and application preparation method, particularly a callicarpa nudiflora extract and a preparation method thereof, and application of the extract in preparing medicines for inhibiting bacteria, arresting bleeding and relieving pain as well as in oral cleaning products.
Owner:JIUZHITANG

Clay screening agent and preparation method thereof

InactiveCN103342500AIncrease dosageNot water-reducingChemical reactionAcid water
The invention discloses a clay screening agent. The clay screening agent comprises the following materials in percentage by weight: 0-50% of silicate, 0-50% of phosphate, 1%-5% of sodium gluconate, 1%-5% of lauryl sodium sulfate and 10%-50% of water. The preparation method of the clay screening agent disclosed by the invention comprises the following steps of: (1), firstly, weighing the materials in the percentage by weight; and (2), then, mixing and stirring the materials to obtain the clay screening agent, wherein the stirring temperature is 20 DEG C-50 DEG C, the stirring speed is 50 revolutions / minute-500 revolutions / minute, and the stirring time is 10 minutes-30 minutes. The clay screening agent disclosed by the invention can be used for preferably adsorbing the clay in a concrete gravel material, so that the bad influences of the clay are screened, and therefore, the acting effect of a polycarboxylic acid water reducing agent is improved. The clay screening agent is wide in material resource, not needed to be synthesized by chemical reaction, simple in preparation method, remarkable in acting effect and suitable for large-scale industrial production.
Owner:CHINA STATE CONSTRUCTION ENGINEERING CORPORATION +1

Process for producing starch sugar

The invention discloses a process for producing starch sugar. The process comprises the following steps of: pulp-conditioning edible starch; liquefying; passing liquefied starch through a primary floating clarifier, guiding an upper floating sugar dreg liquid into a primary buffer tank, and then entering a primary disc-type centrifuge to be centrifugated and separated so as to extract sugar dregs; combining a clear sugar liquid flowing out of the primary disc-type centrifuge and a clear sugar liquid flowing out of the primary floating clarifier and flowing into a saccharifying tank to be saccharified into a saccharified liquid; passing the saccharified liquid through a secondary floating clarifier, guiding an upper floating sugar dreg liquid into a secondary buffer tank, and then enteringa secondary disc-type centrifuge to be separated so as to extract sugar dregs; combining a clear sugar liquid flowing out of the secondary disc-type centrifuge and a clear sugar liquid flowing out ofthe secondary floating scum clearing device and filtering by passing through a membrane micro-filtration system; and flowing a micro-filtered concentrated liquid containing dregs back to the secondary buffer tank, entering a micro-filtered clear sugar liquid into an ion exchange system to be decolorized and desalted, and then finally concentrating into a product. According to the process for producing the starch sugar disclosed by the invention, filter aids and activated carbon are not required in the clarification and the filtration processes, and high-purity sugar liquid can be obtained through the efficient operation of solid-liquid separation equipment; and meanwhile, sugar dregs without the filter aids and the activated carbon are extracted and can be used as a feedstuff raw materialfor animals, thereby changing waste into valuable, and no discharge of filtered solid wastes during the whole process exists.
Owner:双桥(厦门)有限公司

Method for producing damping porous denoise tunnel asphalt covering material

ActiveCN101173104AExcellent structural performanceImprove skid resistanceBuilding insulationsFiberSurface layer
The invention relates to a preparation method of a tunnel asphalt surface layer material. A preparation method for damping porous noise-reducing tunnel asphalt pavement material is characterized in that it comprises the following steps: 1) preparation of high-viscosity and high-elasticity modified asphalt: base asphalt according to the mass ratio of each component: modifier SBS : Activated rubber powder: Viscosifying compatibilizer: Antioxidant: Stabilizer=100: 6.0~18.3: 20.2~45.7: 1.2~3.7: 0.2~1.4: 0.4~1.9, select; obtain high viscosity and high elasticity modification Asphalt; 2) Add flame retardant to high-viscosity and high-elasticity modified asphalt, heat and melt high-viscosity and high-elasticity modified asphalt to add flame retardant, stir for 3-9 minutes, and stand at 150-170°C for 15-30 minutes to obtain Flame-retardant high-viscosity high-elasticity modified asphalt; 3) according to the mass ratio, mineral material: flame-retardant high-viscosity high-elasticity modified asphalt: fiber stabilizer = 100: 3.6~5.2: 0.1~0.4, choose; noise tunnel asphalt surface material. The invention has the functions of noise reduction, flame retardancy and anti-skid.
Owner:WUHAN MUNICIPAL CONSTR GROUP

Selective flotation collector for spodumene and application thereof

The invention discloses a selective flotation collector for spodumene and an application thereof. The collector is formed by performing saponification reaction on industrial fatty acid, hydroxylamine compounds and inorganic base in a mass ratio of (65-85%): (5-15%): (10-20%). The collector is suitable for being used at an ore pulp temperature of 10-25 DEG C, the dosage of the collector ranges from 100 to 600 g / t according to the change of the mineral content of spodumene in ores (or the difference of the contents of LiO2 in ores), and the collector is suitable for selectively floating and recovering spodumene from pegmatite ore. The principle that the collector plays a role of selective flotation on spodumene lies in that the oxy-oximido groups of the hydroxylamine compounds in the collector play a role of selective chelation on the active sites of aluminium, lithium and the like which are exposed on the surface of spodumene, thus enhancing the selective collection of the fatty acid components for spodumene ores. Via the saponification reaction, the water-solubility of the collector and the dispersivity of the collector in ore pulps are enhanced, so that the acting effect of the collector is improved.
Owner:CENT SOUTH UNIV

Unscented particle filtering method based on particle swarm optimization algorithm

InactiveCN101826852APoverty reductionSmart CollaborationDigital technique networkGenetic modelsAccurate estimationInitial distribution
The invention provides an unscented particle filtering method based on a particle swarm optimization algorithm, which comprises the steps of: 1, initial time: obtaining a group of initial particles from an initial distribution p(x0), setting an initial average and variance of the group of initial particles; 2, sampling sequential importance; 3, updating weight; 4, obtaining an normalized weight; 5, sampling; 6, updating state; and 7, solving a globally optimum solution G(t) at the current time. The invention ensures that a particle swarm more trends to a high likelihood region before the weight is updated through a particle swarm optimization process, thereby solving the problem of sample depletion to a certain degree. The optimization process ensures particles far away from real state trends to an area with high occurrence probability of the real state, thereby improving the action effect of each particle. Compared with other intelligent optimization algorithms, the particle swarm optimization algorithm has the advantages of easy implementation and no adjustment on various parameters, lowers the particle number required by accurate estimation, and improves the computing efficiency of filtering.
Owner:HARBIN ENG UNIV

Product and product composition for improving sub-health status

The invention provides a product and a product composition for improving sub-health status. The product and the product composition comprise maca and oyster peptides. The composition provided by the invention is unique and reasonable in formula and can be granules, powder, capsules, tablets or the like. The product and the product composition have the functions of adjusting the secretion of hormones, improving the sleeping quality, enhancing the memory ability, reducing blood fat, inhibiting platelet aggregation, improving hyperglycemia symptoms, improving the immunity of human bodies, promoting metabolism and the like, obvious curative effects on climacteric syndrome, puberty essential uterine bleeding, and antenatal or postpartum weakness of women and a very obvious effect on fatigue caused by working pressure and life pressure as well as the physiology regression of middle-aged and aged people. The maca and oyster in the composition are food eaten for thousands of years, and the toxic and side effects of the maca and oyster are not found. The product and the product composition can also contain tartary buckwheat so as to give full play to a relatively good anticancer effect.
Owner:BAILICHEN SHANGHAI BIOTECH CO LTD

Novel dispersant, preparation method thereof and application thereof

The invention discloses a preparation method of a novel dispersant, which comprises the steps of: taking crylic acid as a main reaction monomer; adding at least one of monomers such as methacrylic acid, maleic anhydride, fumaric acid, itaconic acid and methyl sodium allylsulfonate as comonomer; taking r-methacryloxypropyl trimethoxy silane, vinyl trimethoxy silane or vinyl triethoxysilane as organic silicon monomer to participate in polymerization; taking a redox system as an initiating system; and polymerizing by water solution, and neutralizing by alkaline substance to obtain the novel dispersant. Due to the novel dispersant, the grinding of calcium carbonate has the characteristics of being low in sizing agent viscosity, small in grain size, good in dispersibility and high in stability.
Owner:山东永港伟方环保材料科技有限公司

Mixed fungus ultrafine powder and preparation method thereof

The invention aims at providing a mixed fungus ultrafine powder which reserves active ingredients maximumly, is easy to be absorbed and has multiple health care functions, and a preparation method thereof. The preparation method comprises the following steps: A. putting selected good Sparassia crispa fruit body, Trametes robiniophila Murr fruit body and Phellinus linteus fruit body into a vacuum freezing drying oven for drying, and slicing for standby; and putting liquid fermented Antrodia camphorate mycelium into the vacuum freezing drying oven, and drying for standby; B. respectively processing and grinding the four types of dry products obtained in the step A by a motor-driven grinder with 30-100 meshes of sieve mesh; C. processing and grinding coarse powders and Ganoderma spore obtained in step B by an ultrafine grinder with the 1000-2500 meshes of sieve mesh; and D. fully mixing the ultrafine powders obtained in step C by the following weight percent: 60-80% of Sparassia crispa fruit body ultrafine powders, 5-10% of Trametes robiniophila Murr fruit body ultrafine powders, 5-10% of Ganoderma lucidum karst spores, 5-10% of Phellinus linteus fruit body ultrafine powders, and 5-10% of Antrodia camphorate liquid fermentation mycelium ultrafine powders.
Owner:SHANGHAI SUN AVENUE BIOTECH

Method for quick preparing glycosyl transferred beta-galactosidase

The invention discloses a method for rapid preparation of transgalactosylation beta-galactosidase, which comprises the steps of (1) bacterial strain selection, (2) bacterial activating, (3) bacterial culturing and enzyme producing, (4) gathering bacterial cell, (5) washing, (6) making crude enzyme liquid of beta-galactosidase, (7) making galacto-oligosaccharides from the crude enzyme liquid, (8) carrying out quantitative analysis to the galacto-oligosaccharides.
Owner:SHANDONG UNIV

Treatment method for enhancing stability of blueberry cyanidin

The invention relates to a treatment method for enhancing stability of blueberry cyanidin. The treatment method comprises the following steps: extracting with a 0.5% trifluoroacetic acid (TFA) methanol solution, and sequentially purifying through an ion exchange resin column Amberlite XAD-7 and a Sephadex column Sephadex LH-20 to obtain a blueberry cyanidin refined substance; carrying out nutgall acylation reaction on the blueberry cyanidin refined substance and prepared triacetyl nutgall acyl chloride to introduce galloyl group with ortho-triphenolhydroxy group into the molecular structure, thereby obtaining the modified product nutgall acylated cyanidin. When high-performance liquid chromatography is used for determining the gallic acid amount generated after hydrolyzing the modified product, the nutgall acylation degree is 55-63%. The experiment proves that the stability of the modified product is obviously enhanced. The method for treating blueberry cyanidin is simple to operate, and has the advantages low cost, low pollution and high acylation degree. The molecular modification can enhance the primary characteristics of the blueberry cyanidin, so that the effects are enhanced; and multiple functional groups are introduced to endow the blueberry cyanidin with new physiological activity, thereby widening the application range.
Owner:BEIJING FORESTRY UNIVERSITY

Double-alga fertilizer and preparation method thereof

The invention provides a double-alga fertilizer and a preparation method thereof. The preparation method comprises the following steps: pretreating green algae and brown algae; extracting double-alga polysaccharides: performing composite enzymatic hydrolysis, adding a polysaccharide degrading enzyme, specifically degrading the double-alga polysaccharides to degrade active polysaccharide fragments, and performing centrifugal separation in a hot state to obtain double-alga enzymatic hydrolysate and double-alga residues; performing ultrafiltration on the enzymatic hydrolysate to obtain a double-alga polysaccharide fertilizer additive, performing reverse osmosis concentration on an ultrafiltration waste liquid to obtain a total-micro double-alga foliage fertilizer, and drying and pelletizing double-alga residues left after enzymolysis to obtain a double-alga organic particle fertilizer. According to the method, a novel alga fertilizer is prepared by extracting active ingredients from brown alga and green algae by means of the modern biotechnology, so that the extraction rates of the effective components in double algae are increased. The double-alga polysaccharides are degraded specifically, so that the acting effect is enhanced. Moreover, double-alga resources are utilized fully, and the double-alga polysaccharide fertilizer additive, the double-alga organic particle fertilizer and the double-alga total-micro foliage fertilizer are prepared at the same time.
Owner:青岛海大生物集团股份有限公司

Electromagnetic control electro-gas welding method and equipment thereof

The invention relates to an electromagnetically controlled gas-electric vertical welding (EMS-EGW) method, which is to set an external magnetic field above or / and near the side of the gas-electric vertical welding (EGW) molten pool (3), such as an excitation coil that provides an excitation current by an excitation power supply , produce time-varying or constant electromagnetic stirring and external magnetic field to produce electromagnetic stirring effect; the electromagnetic field promotes the forced movement of the metal fluid in the gas-electric vertical welding pool, and comprehensively controls the solidification process of the weld metal. With the cooperation of gas protection, the method of electromagnetically controlled gas-electric vertical welding (EMS-EGW) is realized on the workpiece. The electromagnetic control gas-electric vertical welding (EMS-EGW) device of the present invention adds excitation equipment on the existing basis, and the excitation equipment is composed of an excitation coil and an excitation power supply that provides excitation current for the excitation coil. The invention breaks through the traditional gas-electric vertical welding method, and provides a new idea for improving gas-electric vertical welding; reduces welding defects, reduces welding costs, improves welding quality and production efficiency, and ensures product reliability; The appearance is well formed; the equipment is simple and easy to popularize and apply.
Owner:CHONGQING UNIV

Microcapsule complex microbial inoculant and preparation method thereof

The invention discloses a microcapsule complex microbial inoculant and a preparation method thereof and relates to the technical field of water purification. The preparation method includes: respectively adding photosynthetic bacteria, bacillus subtilis, lactic acid bacteria, saccharomycetes, bacillus megatherium, nitrobacteria and rhodospirillum in fermentation liquor to perform fermentation; filtering solids in the current fermentation liquor after the fermentation, and performing low-temperature concentration on the fermentation liquor; adding xanthan gum, casein sodium and tween 80 into the concentrated fermentation liquor, and spray drying to obtain the microcapsule complex microbial inoculant after stirring and even dissolving, wherein the weight ratio of the xanthan gum to the fermentation liquor is 1-3%., the weight ratio of the casein sodium to the fermentation liquor is 0.5-1%. and the the weight ratio of the tween 80 to the fermentation liquor is 3-5%.. The microcapsule complex microbial inoculant and the preparation method thereof have the advantages that microbial inoculant storage time can be prolonged, the microbial inoculant can be evenly dispersed in water, synergic effects among various microorganisms can be promoted, and purifying efficiency is increased.
Owner:中科众沃生态科技(武汉)有限公司

Laser beam-combined space debris scavenging system based on self-adaptive optical technology

ActiveCN104155748AImprove function and effectAchieve ablative processingTelescopesOptical pathHigh power lasers
A laser beam-combined space debris scavenging system based on the self-adaptive optical technology, relates to the field of space technology, aims to solve the problem that elements in the light path are easy to deform when heated in the process that the space debris is scavenged by the conventional ground high energy laser emitting system. According to the invention, multiple high power laser beams are emitted to the space debris from the ground surface to realize ablation effect on space debris through the stacking of the energies of the multiple beams; in order to improve the action effect of the laser beams on the space debris, the self-adaptive optical technology is adopted in the system for correction of thermal deformation of the optical elements and disturbance caused by atmosphere; and meanwhile, the laser guide star technology is used by the system, so as to improve the capacity of the action on dark weak space targets; the space debris scavenging system is a way, by which space debris scavenging on earth surface is realized, that space debris with different orbit altitudes are scavenged is realized with the utilization of the principle of energy stacking and the adoption of multiple laser beams for emission, the technical realization difficulty of every key unit is decreased, the maintenance is convenient, and the cost is correspondingly reduced.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Extraction method of peanut germ oil

The invention relates to the technical field of agricultural product processing, and particularly relates to an extraction method of peanut germ oil. The extraction method comprises the following steps: crushing peanut germs; firstly, carrying out enzymolysis by cellulase and amylase under a condition that pH is 4-6, wherein the vitality ratio of cellulase toand amylase is 5:3; then, adding acid proteinase for enzymolysis of the peanut germs and deactivating the enzymes to obtain peanut germ hydrolyzing slurry; separating the oil phase to obtain the peanut germ oil; superfine grinding the peanut germs to 300-400 meshes; processing the peanut germs crushed by steam for 18-20 minutes. By adopting compound enzymes, cell walls and intracellular network structures are degraded more thoroughly, so that the oil extraction rate is improved. By adopting superfine grinding treatment, the granularity of the germs is reduced, the surface area of the germs is increased, and the effect of the enzyme is improved. Meanwhile, the germs are effectively prevented from being emulsified. By adopting steam treatment, lipase in the germs is deactivated, and meanwhile, the cell walls are loosened to increase the permeability and facilitate effect of the enzyme, so that oil is more easily released.
Owner:张瑜

Underwater target low-speed approaching and hovering submarine body combining multiple propellers

InactiveCN105652878AImprove function and effectEffective control of forward and backward movementAltitude or depth controlLow speedPropeller
The invention discloses an underwater target low-speed approaching and hovering submarine body combining multiple propellers. The submarine body is characterized by further comprising a horizontal propeller, a vertical propeller and two lateral propellers, the horizontal propeller is fixedly connected to the right tail of the submarine body, and the axis of the horizontal propeller coincides with that of the submarine body; a vertical channel is formed in the buoyant center of the submarine body, and the vertical propeller is fixedly connected to the inner wall of the vertical channel; horizontal channels horizontally penetrating the submarine body are formed in the bow segment and the stern segment of the submarine body respectively, one lateral propeller is fixedly connected to the inner wall of the horizontal channel of the bow segment, the other lateral propeller is fixedly connected to the inner wall of the horizontal channel of the stern segment, and airscrews of the two lateral propellers are opposite in direction. The submarine body is used for achieving the effect of accurate hovering control when a long-distance AUV conducts close-range alignment observation or object processing around a suspicious underwater target.
Owner:710TH RES INST OF CHINA SHIPBUILDING IND CORP

Plant essential oil feed additive and preparation method and application thereof

The invention provides a plant essential oil feed additive. The additive comprises a core material and a wrapping material wrapping the core material; the core material is prepared from thymol, carvacrol, microcrystalline cellulose and silicon dioxide; the wrapping material is a single coating layer formed by any kind of coating of methacrylic acid-ethyl acrylate copolymer aqueous dispersion, ethyecellulose or hydroxypropyl methyl cellulose, or a double coating layer formed by coating ethyl cellulose and hydroxypropyl methyl cellulose respectively. Accordingly, microcrystalline cellulose serves as an insoluble framework material, different materials of the methacrylic acid-ethyl acrylate copolymer aqueous dispersion, ethyecellulose and hydroxypropyl methyl cellulose serve as the wrapping material, and a fluidized bed is adopted for coating thymol and carvacrol, volatilization loss of thymol and carvacrol is reduced, the effectiveness of the effective ingredients in the additive to foodanimals is guaranteed, and the effect of improving the action of the additive is improved.
Owner:WUHAN HUAYANG ANIMAL PHARMA

Porous medium two-phase flow shell-and-tube heat exchanger and stabilization device thereof

The invention provides a two-phase flow shell-and-tube heat exchanger which comprises a shell. Sealing heads are arranged at the two ends of the shell, at least one sealing head is provided with a two-phase flow fluid inlet pipe, and a porous medium two-phase flow stabilization device is arranged in the fluid inlet pipe; the two-phase flow stabilization device comprises a porous medium core which is formed by connecting a plurality of stick-like objects; and the stick-like objects are crossed and welded in the X,Y and Z three-dimensional direction to form a porous medium structure with through holes. The passive two-phase flow stabilization device with the vibration attenuation and noise reduction function can separate two-phase flow into a liquid phase and a gas phase under the condition of being independent of external power or power sources, the liquid phase is divided into small liquid groups, the gas phase is divided into small bubbles, backflow of the liquid phase is restrained, smooth flowing of the gas phase is promoted, the effect of stabilizing flow is achieved, and the effects of vibration attenuation and noise reduction are achieved.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Dissociation and recleaning technology for coking fine grain middling coal

The invention relates to a dissociation and recleaning technology for coking fine grain middling coal. The technology comprises the processes that the size mixing operation is conducted on the fine grain middling coal; the operation of pretreating ore to remove tailings is conducted through coarse slime separation equipment; classification is conducted through classification equipment, and fine grain coarse clean coal and coarse grain coarse clean coal are produced; dissociation is conducted on the coarse grain coarse clean coal through coal grinding equipment; the flotation operation is conducted on fine grain coarse clean coal through size mixing equipment; after size mixing is conducted on the fine grain coarse clean goal through rough separation equipment, rough separation clean coal is produced; and concentrate is conducted on the rough separation clean coal through cleaning equipment, and the clean coal is produced. The dissociation and recleaning technology has the beneficial effects that the process is simple, the technology is mature, the investment is small, the operating cost is low, and the economic benefits are remarkable; the ash content of the tailings is guaranteed, and meanwhile the materials with the medium ash content and the low ash content are fully dissociated; and it is avoided that gangue enters a grinding machine, the load of the grinding machine is reduced greatly, the energy consumption is lowered, and the recovery rate of the tailings and the clean coal is increased.
Owner:CHINA UNIV OF MINING & TECH

Oil production method of nitrogen and carbon dioxide composite huff and puff

The invention discloses an oil production method of nitrogen and carbon dioxide composite huff and puff. The oil production method comprises the following steps that an injection-production integrated pipe column is put downward to a target oil layer in an oil well; the top of the injection-production integrated pipe column is connected with gas injection devices and thin oil injection device on the ground, wherein the gas injection devices comprises the nitrogen injection device and the carbon dioxide injection device; the gas injection devices inject gas into the oil well through the injection-production integrated pipe column; after nitrogen, carbon dioxide and thin oil are injected, shut in well is conducted; when the pressure of an wellhead after shut in well is stable, blow-off is controlled through an oil nozzle; and after the wellhead pressure and the blow-off well liquid amount both are smaller than predetermined values, extracting starts to be conducted through the injection-production integrated pipe column. The nitrogen and the carbon dioxide jointly serve as one-time injection media, the nitrogen replaces attic oil in the high positions of the periphery of the well, the carbon dioxide achieves the functions of dissolution, viscosity reducing and expansion energy increasing on stratum thick oil, and by utilizing the double composite functions of gas cap energy increasing of the nitrogen and stratum viscosity reducing of the carbon dioxide, the recovery efficiency of an ultra-deep fracture-cavity type thick oil reservoir is increased.
Owner:CHINA PETROLEUM & CHEM CORP

Preparation method of butyrate-essential oil compound feed additive

The present invention discloses a preparation method of a butyrate-essential oil compound feed additive, and the preparation method comprises the following steps: 1), preparing raw materials: the raw materials consist of the following components in contents by weight: butyrate 70-90%, essential oil 5-20% and coatings with a coating role 5-20%; 2) heating the butyrate until the butyrate is melted, and processing the melted butyrate into granules (granularity, 20-60 meshes) to obtain butyrate granules; 3), spraying the essential oil on the outer surface of the butyrate granules to obtain a butyrate-essential oil compound; and 4), then spraying the coatings on the outer surface of the butyrate-essential oil compound to obtain the butyrate-essential oil compound feed additive.
Owner:ZHEJIANG WANFANG BIO TECH CO LTD
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