4610results about How to "Mature technology" patented technology

The invention relates to a nonpolar A side nitride film that comprises a silicon (102) underlay, metal layer which grows upon the silicon underlay sequentially, InGaAlN initial growth layer and the first InGaAlN buffer layer, it characterized in that: said silicon underlay is Si underlay which adopts the (102) side or offset angle. The nonpolar a side nitride film which grows on the silicon underlay can be used in LBD, laser, solar battery. The component extension configuration is adopted according to different component, for example the LBD and laser, and using the mature silicon craft further to produce relative diprosopia electrode component or peeling off component. The advantages of the invention are: the invention can increase the growth quality of nonpolar GaN base material, and decrease the cost; the craft of current component can be simplified greatly, the cost can be decreased, and increase the elimination efficiency and lightening efficiency greatly.

The invention relates to high-salt complex wastewater reuse and zero discharge integrated equipment and a technology. The equipment provided by the invention comprises a pretreatment system, a reuse and reduction system and a zero discharge system. The technology comprises the following steps: carrying out homogenization and averaged quantity on high-salt complex wastewater, successively adding sodium hydroxide, sodium carbonate, PAC and PAM to carry out coagulation treatment, letting a mixed liquor which has undergone coagulation treatment enter a filter tank for sedimentation and filtration by the use of an immersed microfiltration membrane, letting a supernatant enter a reverse osmosis treatment process, letting pure water obtained by reverse osmosis treatment enter a reuse water tank for utilization, further condensing condensed brine, and crystallizing the condensed brine or putting the condensed brine into an evaporation pond for atomization and evaporation processing, wherein the reverse osmosis treatment adopts three-level RO: a medium-pressure membrane element is firstly used for desalination and condensation; a high-pressure membrane element is then used for further desalination and condensation; and a ultrahigh-pressure membrane element is finally used for further desalination and condensation. According to the invention, 95% of reverse osmosis concentrated water or analogous high-salt complex wastewater can be recovered for reutilization, only 5% of high strong brine is left to undergo evaporative crystallization or enter the natural evaporation pond. Water resources are fully recycled, and reuse and zero discharge costs of high-salt complex wastewater are reduced.

The invention discloses a method for preparing a low-carbon olefine catalyst by a loading iron-based synthetic gas, which comprises the following steps of: firstly carrying out surface modification on a silica gel carrier by using silica gel as a carrier, and then loading a metal auxiliary agent and an active component Fe by using an immersion method, wherein the surface modification method of the silica gel carrier comprises the following step of carrying out immersion treatment by using the acidic solution of sugar. After the silica gel carrier adopted is modified, the strong interaction between the carrier and the active component is overcome, and the activity and the selectivity of the catalyst are improved. The catalyst prepared by using the method is suitable for a reaction process of producing low-carbon olefines of ethylene, propylene, butane and the like by the synthetic gas.

The invention relates to a self-repairing polyurethane hydrogel and a preparation method thereof. The polyurethane hydrogel comprises the following components in parts by mass: 10-30 parts of polyisocyanate, 30-50 parts of hydrophilic polyester polyol or hydrophilic polyether polyol, 10-50 parts of acrylamide monomer, 0.5-3 parts of chain extender, 3-10 parts of methacrylic acid functional monomer containing an UPy unit, 0.5-2 parts of catalyst and 0.5-3 parts of photoinitiator. The preparation method comprises the following steps of firstly preparing a hydrophilic polyurethane macromonomer terminated with an acrylic acid monomer and carrying out radical polymerization with the methacrylic acid functional monomer containing the UPy unit under the action of photo-initiation. According to the self-repairing polyurethane hydrogel, the self-repairing of the damage of the polyurethane hydrogel can be completed without need of any repairing agent or specific environmental requirements, the polyurethane hydrogel has the advantages of high repairing efficiency, high mechanical strength and low cost and the repeatedly repairing function can be achieved on the same site.

The invention provides an intelligent electronic label system which uses a highly integrated and low cost wireless micropower single chip transceiver to manufacture an intelligent label and a reader-writer respectively. The intelligent label is in a dormant state for a long time and works for an instant after a periodical revival, the reader-writer seizes the instant after the intelligent label is revived to establish a communication contact with the intelligent label through different modes, thereby realizing control management of a system to the intelligent label and other terminal devices connected with the intelligent label with very low average power consumption. The invention also makes that a common button cell battery is not necessary to replace for a plurality of years through flexible regulations to the dormant cycle of the intelligent label, an operating channel, an operation mode, etc. Meanwhile, the invention also greatly accelerates response speed of the intelligent label. The intelligent electronic label system has a simple structure, a long reading and writing distance, low cost, and flexible and convenient use; therefore, intelligent electronic label system can be used as a wireless electronic vehicle license plate, an identification card, etc., and can be used for control management to vehicles, staffs, materials and other remote terminal equipment.

The invention discloses a multifunctional intelligent clothing care machine. The machine is characterized by comprising a box body, wherein an air exhaust port is formed in the top part of the box body; a water tank and a water draining box which intercommunicate are arranged at the bottom part of the box body; a recognizing module, a washing module, a drying ironing or hanging ironing module provided with an intelligent algorithm system, and a caring module are arranged in the box body and are connected to an information storing and control module. According to the multifunctional intelligent clothing care machine, proper clothing stain removing program, washing program, drying program, ironing or hanging ironing program and casing program are accurately set; the clothing information recognizing and the stain type recognizing are intelligently combined; the care efficiency can be increased based on washing protecting models and intelligently-matched caring program, and meanwhile, the damage to the clothing appearance and physical and chemical performances can be decreased to the maximum. Therefore, common clothing and high-level clothing can be handled, and moreover, some clothing to be subjected to dry cleaning can be handled. The machine is high in automation degree; after a use puts clothing into the machine, the machine can automatically perform all tasks such as washing, drying, ironing and caring.

The invention discloses a method for preparing a modified regenerated cellulose/alginate hemostatic composite material, and relates to a method for preparing a hemostatic material, belonging to the technical field of biomedical composite materials. The invention aims to solve the technical problem that an existing alginate material has an unsatisfactory hemostatic effect, poor structure integrity, and relatively low mechanical strength and stability. The method comprises a first step of modification of regenerated cellulose; a second step of preparation of an oxidized regenerated cellulose/sodium alginate water solution; a third step of molding of the hemostatic composite material; and a fourth step of cross-linking and solidification of the hemostatic composite material. According to the modified regenerated cellulose/alginate hemostatic composite material, due to the introduction of a sodium carboxylic acid structure at the C6 site of the regenerated cellulose molecule through the selective oxidization of a TEMPO-NaClO-NaBr oxidation system, the hemostatic property, structure integrity, mechanical strength and stability of the modified regenerated cellulose/alginate hemostatic composite material are improved, and the defects of poor wet strength, low mechanical integrity and easy deformation of ordinary alginate non-woven fabrics are overcome.

The present invention relates to one kind of high molecular weight polybutanediol succinate and its preparation process, and features that bihydroxy terminated butanediol succinate, especially low molecular weight bihydroxy terminated butanediol succinate, as the pre-polymer and diisocyanate as the chain extender in 0.1-13 % are molten and reacted to prepare polybutanediol succinate with low cost, great molecular weight, narrow molecular weight distribution and excellent mechanical performance. The polybutanediol succinate has number average molecular weight greater than 5.5x10<4>, molecular weight distribution of 1.4-1.8, tensile strength of 39-58 MPa, and elongation at break of 300-700 %.

The invention relates to a preparing method of a transparent electrode based on a metal nanometer grid. The method comprises the following steps that (1) photoresist coats a silicon substrate in a spin-coating way and is baked; (2) exposure and development are carried out, and the photoresist is etched into a nanometer grid pattern on the silicon substrate; (3) a metal layer is deposited on the photoresist of the nanometer grid pattern; (4) the photoresist is removed through stripping, and a metal nanometer grid formed on the silicon substrate is obtained; (5) bonding agents coat the metal nanometer grid in a spin-coating way, and in addition, a transparent substrate is adhered and cured; (6) the silicon substrate is removed through corrosion, and the transparent electrode based on the metal nanometer grid arranged on the transparent substrate is obtained. The method is simple, the implementation is easy, the integration and the large-scale production are easily realized, and the electrical conductivity and the light transmittance of the prepared transparent electrode are controllable.

The invention provides a fitness effect evaluation system based on an electromyographic signal and body movement detection and belongs to the technical field of fitness evaluation, aiming at solving the problem that a result is not accurate when the fitness effect is evaluated according to subjective intention. The fitness effect evaluation system comprises a signal acquisition part and a cell phone APP part, wherein the signal acquisition part comprises an electrode, an electromyographic sensor, a controller, an acquired signal wireless transmission module and an accelerated speed sensor; the cell phone APP part comprises a processing signal wireless transmission module, a processor and a user module; a positive pole end and a negative pole end of the electrode are conducted with a to-be-detected target; a right leg driving electrode of the electrode is arranged at a tested part of the to-be-detected target. By detecting and analyzing an electromyographic signal, a body movement speed and an accelerated speed, the fitness effect is evaluated; the description of the fitness effect is relative to muscle fatigue degree and exercise quantity; information feedback and data management are carried out through a cell phone APP. The fitness effect evaluation system based on the electromyographic signal and the body movement detection is used for evaluating the fitness effect.

The invention discloses a three-phase separation and waste water purification standard treatment device of kitchen waste including 'waste oil', solid waste and kitchen waste water. The three-phase separation and waste purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water is mainly composed of a shell body, a solid-liquid separation chamber, a filtering bag with meshes, a liquid level displayer, an oil-water interface detector, a numerical control electric valve which discharges the 'waste oil', a flowmeter of the 'waste oil', a collection tank of the 'waste oil', a blower, an air heating device, a filtering tank, a drug adding tank and the like. According to the three-phase separation and waste water purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water, oil and water separation and waste water purification are carried out in the same device, an equipment structure is simplified, the water quality after being purified is in line with each indicator of 'water quality standard of sewage discharged into the city sewer' (CJ3082-1999), The three-phase separation and waste purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water has the advantages that the size is small, the investment is low, either manual or automatic operation is available and the like, and obvious creativity, novelty and good industrial applicability are provided.

The invention discloses a self-repairing polyurethane coating and a preparation method thereof. The polyurethane coating comprises the following raw materials in parts by mass: 15-20 parts of polyisocyanates, 40-60 parts of hydrophilic polyester polyol or polyether polyol, 2-3 parts of a chain extender and 7-15 parts of methylcystein. The preparation method comprises the following steps: preparing a hydrophilic polyurethane prepolymer from hydrophilic polyester polyol or polyether polyol and the chain extender, and reacting the isocyanate group in the hydrophilic polyurethane prepolymer with methylcystein, so as to obtain a polyurethane material of which the tail end or the main chain contains 2-urea-4-pyrimidone units; spraying or coating the polyurethane material on the surface of a substrate, thereby obtaining the self-repairing polyurethane coating. The self-repairing of the self-repairing polyurethane coating disclosed by the invention can be completed without external repairing agent or requirements of special environment, the coating is good in transparency, high in strength, good in filming property, simple in process and low in cost, and the function of repeated repairing in same positions can be achieved.

The invention provides an online low-current earth fault positioning method and positioning device based on a BP neural network and by means of a multi-source data fusion algorithm. Due to the fact that terminals arranged on different positions on a circuit accurately catch zero-sequence current transient signals of zero-sequence currents which exceed a starting value before a previous period of a starting value and after four periods of the starting value, signal characteristics of a fault transient signals are extracted by means of a Prony algorithm, a wavelet packet algorithm, an HHT algorithm and a fractal algorithm, the characteristics extracted by the algorithms are analyzed by means of the BP neural network, and a zone where a fault occurs is determined. The positioning device comprises a terminal and a main station, wherein the terminal is arranged on an overhead line tower or in a cable ring main unit, the input end of the terminal receives a zero-sequence current signal synthetized by a phase current signal of a CT secondary side of a power distribution circuit including an overhead line and a cable, the terminal is connected with the main station through optical cable communication or mobile communication, and the main station is arranged in a transformer substation or a dispatch center, comprises an optical cable communication module and a mobile communication module and receives a signal sent by the terminal. The method and the device are mature in technology and high in reliability.

The invention discloses a high-resilience self-repair high-polymer aquagel and a preparation method thereof. The high-resilience self-repair high-polymer aquagel is prepared from the following raw materials in parts by mass: 15-20 parts of polyisocyanate, 40-75 parts of hydrophilic polyester polyol or hydrophilic polyether glycol, 1-5 parts of acrylate monomer, 10-15 parts of acrylamide monomer, 0.5-2 parts of chain extender, 1-3 parts of surfactant, 0.1-1 part of alkyl acrylate monomer and 0.5-2 parts of catalyst. The preparation method comprises the following steps: preparing an acrylate-monomer-terminated hydrophilic polyurethane high-polymer monomer self-assembly and an alkyl acrylate micelle; and carrying out radical copolymerization with acrylamide monomer under the photoinitiation action. The obtained self-repair high-polymer aquagel can complete self repair on self damage without any repair agent or specific environment, and has excellent resilience and physical and mechanical properties.

The invention relates to a ferrum (Fe)-based amorphous alloy material, in particular to a Fe-based amorphous alloy strip for treating printing and dyeing wastewater and a preparation method thereof. According to the conventional literatures and technical data, an alloy component with Fe-based amorphous alloy strip forming capacity is selected; and general requirements show that the selected alloy component comprises more than 50 percent of Fe atoms, preferably 60 to 85 percent, so the reduction decoloring capacity of the Fe atoms is exerted. The amorphous alloy strip is obtained by adding a small amount of other elements and performing rapid solidification by using melt spinning equipment. The decrystallization of zero-valent Fe is realized by preprocessing technology; the decoloring capacity of the Fe atoms is kept; the rusting consumption of the Fe in the wastewater treatment process is effectively reduced; the strip is repeatedly and persistently utilized on the premise of guaranteeing the decoloring rate; the technical defects and the application defects in the conventional method for treating the printing and dyeing wastewater by using reducing Fe powder or waste cast Fe scraps are overcome; and the Fe-based amorphous alloy strip relates to the field of potential application of decrystallization technology in the industrial field, and has an extremely high application prospect.

The invention relates to a circuit breaker and a realization method thereof, and particularly relates to a high-voltage DC circuit breaker and a realization method thereof. The DC circuit breaker, based on a secondary current transferring principle, comprises a main branch, a current transferring branch and an energy absorption branch in parallel connection. The DC circuit breaker is serially connected in a DC system. The main branch comprises at least one high-speed mechanical switch K and at least one current transferring module comprising a fully-controlled device in serial connection. The current transferring branch is a bridge circuit formed by thyristor valves, inductors and capacitors. The energy absorption branch is formed by a non-linear resistor. The invention also provides a high-voltage DC circuit breaker realization method. The circuit breaker provided by the invention has a simple topological structure, the control is simple and convenient, used power electronic devices are mainly half-controlled thyristors, the technology is mature, realization is easy, the current breaking ability is large, a voltage-withstanding grade is high, the extension ability is strong, and the cost is greatly reduced.

The invention provides a method for quickly detecting melamine in a milk sample based on nanogold, which aims to solve the problems of the high operation requirement, complex detection process, high cost, long time, incapacity of meeting a lot of food test requirements and the like on the detection of the melamine. The method comprises the following steps: performing pretreatment on the milk sample and adding the pretreated milk sample into a nanogold solution; and adopting visual colorimetry to compare the color of the nanogold added with the sample solution with the color in a color standard series and then qualitatively judging whether the milk contains the melamine or not. The color standard series is prepared through the following steps: adding the pretreated milk samples in an identical volume and containing the melamine of different concentrations into the nanogold solution, wherein the content of the nanogold in each sample is consistent; and after color development reaction, obtaining the color standard series. The method has the advantages of low cost, simple and convenient operation and capacity of visually and quickly detecting the melamine in the milk.

The present invention discloses one kind of high temperature resistant ceramic cooker suitable for use in electromagnetic induction furnace. The high temperature resistant ceramic cooker is produced with the main materials, including lithium-containing mineral material, quartz, kaolin, etc, and through grinding, mixing, forming, drying, glazing and high temperature baking to obtain the ceramic body; coating far infrared radiation layer, electromagnetically inducing eddy flow heating layer and far infrared reflecting layer to the bottom of the ceramic body; and roasting. It has high heat stability, no cracking even in no-water cooking state, high heat utilization rate and long service life. It is especially suitable for cooking in electromagnetic induction furnace.

The invention belongs to the technical field of superconduction and particularly relates to an uninsulated superconducting magnet. The uninsulated superconducting magnet comprises a coil framework and a superconducting wire wound on the coil framework, wherein the surface of the superconducting wire is free from an insulating layer or is wrapped with an incomplete insulating layer, a mixture of an electroconductive material, a heat-conducting material, a curing material and a wetting material is filled among the turns of the superconducting wire, the inter-turn resistance is 0.1ohm-100kilohm, and in terms of volume percentage of all materials, the uninsulated superconducting magnet comprises 0.01-99.9% of the electroconductive material, 0-99.9% of the heat conducting material, 0-99% of the curing material and 0-5% of the wetting material. According to the uninsulated superconducting magnet disclosed by the invention, electroconductive components are filled in each turn of the superconducting coil so that the inter-turn resistance is maintained higher, not only is the inter-turn uninsulated characteristic brought into play, but also the charging excitation and the quench protection of the superconducting magnet are facilitated.