65results about How to "Increase the rate of formation" patented technology

The invention provides an efficient compound-type hydrate dynamics inhibitor. The efficient compound-type hydrate dynamics inhibitor comprises a dynamics inhibitory component, a dynamics inhibitor assistant and a dynamics inhibitor solvent. By means of the dynamics inhibitor, the defects that a traditional thermodynamical inhibitor is large in use quantity, high in economic cost, large in environment pollution and the like are overcome. Compared with a common hydrate dynamics inhibitor and a common hydrate polymerization inhibitor, by means of the dynamics hydrate inhibitor, the formation rate of a hydrate can be effectively inhibited, the blocking forming time of the hydrate is delayed, and the efficient compound-type hydrate dynamics inhibitor has the advantages of being small in use quantity, capable of bearing the large super-cooling degree, stable in performance, economical, efficient and the like, is suitable for an oil-air-water three-phase or air-water two-phase mixing transmission system, and has the good application prospects.

The invention relates to a continuous preparation method for spray strengthening hydrate. Some water is compensated in reactor so that decompressed steam enters into the reactor and water is atomized and enters into the reactor after water is compressed. The temperature in hydrate preparation process is controlled in the combination of inner cooling and outer cooling. The continuous preparation device for spray strengthening hydrate comprises air supply system, water flow atomization system and refrigeration system, reactor with partition cooling channel and chilled water circulating system. Air source is connected with buffering tank, filter, decompressed controlling valve, pressure gauge and air inlet on the reactor by valve. A vacuum pump is set between the controlling valve and the air inlet. Water source is connected with pressing pump, outer cooler, pressure gauge, thermometer and atomizing nozzle. The outer cooler is connected with the refrigeration system. Refrigerant compensation and refrigeration system and refrigerant circulating pump are connected with chilled water inlet on the reactor. The system can realize continuous and quick preparation for hydrate and shorten induction time for hydration reaction.

The invention discloses a method for preparing mesoporous silica spherical nanoparticles. According to the method, the used template agent refers to cetyl trimethyl ammonium bromide, the alkali source refers to an organic small molecule amine, the silicon source refers to tetraethyl orthosilicate (TEOS), and the organic alcohol salt serves as a promoter. According to the molar composition of the raw materials, a ratio of the silicon source to the cetyl trimethyl ammonium bromide to organic alkali to sodium methylate to water is (1):(0.03-00.06):(0.5-2):(0.001-0.5):(80-500). Accurate synthesis in the particle size range of 25-50nm is realized by regulating the amount of the organic alcohol salt and regulating the nucleation rate of particles. Compared with the prior art, the method disclosed by the invention has the most significant advantage that the hydrolysis and condensation rate of the silicon source is promoted by taking the organic alcohol salt with high nucleophilicity as the promoter. Therefore, the silicon source is subjected to burst nucleation in a very short time, so that the small-size mesoporous silica spherical nanoparticles are prepared. The synthetic method disclosed by the invention is simple, short in cycle, low in cost and high in repeatability and is an environment-friendly green synthetic method.

The invention belongs to the technical field of plant biology, in particular relates to a method of tissue culture of Medicago sativa L. By way of developing a novel tissue culture technical method, the invention focuses on improvement and innovation of two technical nodes (seed disinfection and callus formation and differentiation) in culture steps. With adoption of a mercury bichloride and hydrogen peroxide compound disinfection method, the invention realizes the purposes of thorough disinfection effect and low pollution rate and minimum damage to seeds. Finally, the invention solves the problem of severe pollution to current explants. Meanwhile, a method of TDZ and 6-BA is adopted, thereby, the callus induction rate and the formation rate are remarkably increased, the callus quality is improved, the differentiation capacity of the callus is reserved to a maximum extent, the formation of embryoid sprouts is promoted so that the novel technical method of the tissue culture of the Medicago sativa L. which is efficient, saves time, and has low toxicity and low browning, is obtained.

The invention discloses high-purity ultrafine oxalate ferromanganese of which the purity is greater than 99.6%, the median particle diameter is 0.5-4.0 microns and the metal proportion is adjustable, and a preparation method of the high-purity ultrafine oxalate ferromanganese, and belongs to the technical field of inorganic fine chemical engineering. According to the main points of the technical scheme, under inert gas protection, a ferrous salt and a manganous salt are dissolved into deionized water at a certain molar ratio; the mixed solution and a solid oxalic acid or oxalate are directly subjected to co-precipitation reaction under the common action of mechanical stirring and ultrasonic cavitation; and filtering, multiple ultrasonic laundering and drying are sequentially carried out on a generated oxalate ferromanganese suspension to obtain oxalate ferromanganese powder. The oxalate ferromanganese product obtained by the method has the advantages that the purity is high, metal ions are evenly distributed, the powder granularity is controllable, the distribution range is narrow, the technology is simple, the cost is relatively low and industrial mass production is easy to implement.

The invention relates to a metal organic vapor phase deposition device which comprises a reaction chamber, a base and a spraying component, wherein the base is arranged at the bottom of the reaction chamber; the spraying component is arranged at the top of the reaction chamber; the spraying component comprises a central air inlet device and a peripheral air inlet device encircling the central air inlet device; the central air inlet device is used for allocating a first gas at a first flux to an area between the central air inlet device and the base; the peripheral air inlet device is used for allocating a second gas at a second flux to a peripheral area of the reaction chamber; the first and second gases are carrier gas, III metallic organic source gas and V hydride source gas; the III metallic organic source gas and the V hydride source gas in the first and second gases respectively have a first flow ratio and a second flow ratio; and the first flow ratio is different from the second flow ratio. The metal organic vapor phase deposition device is used for increasing the uniformity and forming rate of a film.

The invention relates to a rapid synthesis device and method for a hydrate, and belongs to the technical field of natural gas hydrate application. According to the rapid synthesis device and method for the hydrate, a hydration reaction stirring system is designed, stirring parts with different specifications are arranged at different positions, and irregular disturbance of a hydration reaction system is realized; a hydration reaction circumferential self-rotating system is designed, and by means of liquid kinetic energy, circumferential stirring of the hydration reaction stirring system is realized; a hydration reaction axial self-rotating system is designed, the structures of a liquid inlet nozzles are changed, and by means of high-pressure liquid potential energy, kinetic energy and spring elastic potential energy, axial stirring of the hydration reaction stirring system is realized; and a stirring umbrella is arranged, the size of bubbles in the hydration reaction system is changed,and the hydration reaction rate is increased. The rapid synthesis device and method for the hydrate mainly aim at solving the problems of high stirring energy consumption, low reaction rate, low gasstorage capacity and the like in a hydrate production technology and have the advantages that continuous, rapid and efficient preparation of the hydrate is realized, and a new way for a natural gas storage and transportation technology is provided.

The invention discloses a fruit and vegetable fresh-keeping film coating agent, and belongs to the technical field of agricultural additives. The fruit and vegetable fresh-keeping film coating agent provided by the invention comprises the following components: 6-8 parts of a plant germ extract, 3-8 parts of an insect extracting solution, 3-5 parts of mixed sugar, 0.1-0.2 part of a complex enzyme,10-15 parts of a nano filler, 80-100 parts of an activated chitosan liquid and 4-8 parts of a film-forming agent, wherein the plant germ consists of wheat germ, soybean germ and apple germ. In the using process, plant cells can be effectively promoted for regeneration, and a protective film is jointly constructed on the surface of the original plant cells and the film-forming framework in the product. The fruit and vegetable fresh-keeping film coating agent prepared by the technical scheme of the invention has the characteristics of antibacterial property and corrosion resistance, has an excellent film forming property and has a wide prospect in the development of the fruit and vegetable fresh-keeping industry.

The invention provides a semiconductor device, a manufacturing method therefor and an electronic device. The method comprises steps: a semiconductor substrate is provided, a hard mask laminated structure and a photoresist layer with a pattern of silicon through holes are formed on the semiconductor substrate in order; the photoresist layer is employed as a mask layer, the hard mask laminated structure is etched until the semiconductor substrate is exposed; the semiconductor substrate is etched, and silicon through holes are formed in the semiconductor substrate. Undercutting or recessing at the upper parts of the sidewalls of the formed silicon through holes can be avoided, the leakage current is decreased effectively, the forming speed of silicon through holes is raised, and the technology cost is lowered.

A manufacturing method for semi-conductor structure is applicable to non-volatility memory technology. Firstly, a substrate is provided, inside the substrate, grooves are formed, and on the side walls of the grooves, floating grids are formed. Secondly, the conductor material layers are formed in the grooves, and the surface active technology is performed on the conductor material layers, thirdly, protective layers are formed on the conductor material layers, the surface active technology quickens the forming speed of the protective layers.

The invention provides a manufacturing method for pressing powder into a welded ring. The method comprises the following steps of 1) sieving; 2) mixing powder; 3) performing thermal treatment and sieving; 4) pressing; 5) sintering. The method is less in processing steps, free from repeated wire drawing and annealing processes, capable of manufacturing the welded ring at a time, high in welding efficiency and production efficiency and high in welded ring yield.

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a high-efficiency water delivery multi-stage fire pump. The multi-stage fire pump comprises a supporting plate, a motor and connecting rings; a base is fixedly connected to the upper side of the supporting plate at the bottom; the motor is fixedly connected to the upper surface of the supporting plate at the top; one side, close to the motor, of the base is fixedly connected with the connecting rings; the plurality of connecting rings matched with the base are mutually combined with the top supporting plate to form a pressurizing cavity; a first cavity is formed in the base; a motor output shaft penetrates through the supporting plate, a shell and the base and extends into the first cavity;one end, located in the first cavity, of the motor output shaft is fixedly connected with a first cam; and a second cam is rotationally connected to one side, located on the first cam, of the first cavity. According to the high-efficiency water delivery multi-stage fire pump, the first cam and the second cam are driven to rotate at a constant speed through the rotation of the motor, so that a negative pressure is formed at an inlet of a water inlet pipe, an external water source is attracted by the negative pressure and enters the water inlet pipe so as to be introduced into the multi-stage fire pump to be sprayed out quickly through pressurizing.

The invention discloses a preparation method of high-strength aluminum alloy, and belongs to the technical field of high-strength metal materials. The preparation method comprises the steps that modified grapheme is prepared, the modified graphene and the aluminum alloy powder are mixed to prepare the composite powder, and the high-strength aluminum alloy prepared by adopting the powder metallurgyprocess. According to the high-strength aluminum alloy and the preparation method, the whole preparation process is simple, the modified graphene treatment process and the material mixing process cooperate with each other, and the easy-to-control powder metallurgy technology is adopted, so that the operation is simple and convenient, and the strength and the hardness of the prepared aluminum alloy are high.

The invention discloses a strontium-containing mesoporous bioglass-magnesium composite and a preparation method therefor and application of the composite. The composite consists of a magnesium matrixand strontium-containing mesoporous bioglass evenly distributed in the magnesium matrix. The preparation method for the strontium-containing mesoporous bioglass-magnesium composite comprises the stepsof firstly mixing an organic template with a raw material to obtain mixed gel, and then performing high-temperature calcination to obtain strontium-containing mesoporous bioglass microspheres; and after the mesoporous bioglass microspheres are mixed with magnesium powder, preparing the strontium-containing mesoporous bioglass-magnesium metal composite material by utilizing a selective laser melting technology. The composite obtained by the invention has excellent biological activity, can promote formation of a calcium-phosphorus protective layer on the surface to delay degradation of the magnesium matrix, and meanwhile, strontium ions are released in a sustained-and-controlled manner by utilizing highly ordered mesoporous structures of the mesoporous bioglass to achieve long-term bone-promoting effects to accelerate the bone healing process. The composite prepared by the invention is a very great potential bone tissue repair material.

According to the implant with the bioactive coating and the manufacturing method of the implant, firstly, a multi-level micro-nano-level hole structure is formed in the surface of the implant, so that the surface of a base body obtains unique morphological characteristics, effective nucleation and attachment sites are provided for later spraying of the bioactive glass coating, and the surface of the implant is coated with the bioactive glass coating; then preparing the discontinuous bioactive glass coating in a texturing manner, improving the compactness of the coating and the proportion of an amorphous phase through chemical conversion treatment, and finally covering the textured discontinuous bioactive glass coating with a carbonated hydroxyapatite layer. The implant with the bioactive coating provided by the invention not only can avoid cracking and stripping of the coating, but also can avoid ion poisoning and alkali poisoning in the initial stage of implantation, can maintain the biological activity and stable degradation of the bioactive glass coating after implantation, and is convenient to take out after fracture healing.

The invention provides a facial mask analysis and detection method which comprises the following steps: step 1, dropwise adding facial mask liquid drops to be detected into a circular glassware for microwave heating to obtain image information after microwave heating; and 2, analyzing and processing the image information by using an image processing system combined with deep learning to obtain ananalysis and detection result. According to the detection method, the detection efficiency is improved in a microwave heating mode, and the detection precision is improved in a mode of processing image information through an image processing system combined with deep learning.

A diffusing film for diffusion board is prepared by curtain coating method and optical solidifying method, and contains acrylate, light initiator chosen from methyl-1-(4-methylthiophenyl)-2-morpholinyl-1- acetone, 1-hydroxy cyclohexyl phenylketone, etc. diffusing powder, defoaming agent, Si-containing compound and O-Si compound.

The invention belongs to the field of flameresistant materials, and discloses a flame-retardant emulsion and preparation method and application thereof. The preparation method of the flame-retardant emulsion is divided into two steps that firstly, flame-retardant nanoparticles with two-dimensional network structure are prepared; then, the flame-retardant nanoparticles are assembled on the surfacesof oil water emulsion microspheres, flame-retardant emulsion is prepared. The flame-retardant emulsion not only has good compatibility, can realize the assembly design of flame-retardant particles under nanometer size, but also can apply flame retardancy to materials, can be applied to the preparation of all kinds of flame-retardant materials, such as flame-retardant paper, flame-retardant film and flame-retardant fiber and other flame-retardant materials.

The invention relates to the technical field of aluminum alloy surface modification, in particular to a method for realizing surface lead alloying of a Pb/Al coating prepared through electron beam irradiation ball milling. Specifically, an Al block and Pb powder needing to be coated and plated are put into a ball mill together to be mixed and ball-milled, a coating is prepared on the surface, andthen an alloying layer with high hardness and excellent wear resistance is prepared on the surface of Al by adopting a method of combining a high-current pulsed electron beam irradiation technology.