413results about How to "Broad application market" patented technology

The invention relates to a process by adopting supercritical water oxidation technology to treat coking wastewater or organic wastewater. The invention is that: coking wastewater or organic wastewater is pretreated to obtain wastewater without solid granules; the wastewater is heated to 380-450 DEG C with a first interchanger and / or a supercritical boiler, and then enters demineralizing equipment to remove the salt in the wastewater by taking advantage of the property that supercritical inorganic matter is indissoluble; the wastewater after desalting is put in a reaction kettle to generate autothermal reaction with an heated and pressurized oxidant to obtain high-temperature gas-liquid mixture with higher temperature; the high-temperature gas-liquid mixture enters the first interchanger and acts as thermal medium to exchange heat with new coming coking wastewater or organic wastewater and then goes through a secondary interchanger to enter a cooler and is cooled to normal temperature, after pressure thereof is adjusted by a pressure regulation device, the high-temperature gas-liquid mixture enters a gas-liquid separator for separation, and then the air is discharged, while the liquid, namely the treated water is recycled. The organic contamination and oxidant are all dissolved in the wastewater; oxidation reaction is generated in homogeneous phase, in short reaction time, oxygenolysis of organic contamination is carried out quickly.

The invention discloses single component self-cross linking emulsion tackiness agent used for dry type compound and the preparation method thereof. The invention has the preparation method as follows: firstly, part of aqueous medium, part of emulsifying agent, and part of initiating agent and baking soda are measured and added in a reactor, and are warmed up 70 to 85 DEG C; secondly, then hard monomer, soft monomer, (methyl) acrylic acid and cross linking monomer are mixed, and form pre-emulsion together with part of the emulsifying agent and water; thirdly, 1 / 10 pre-emulsion is added firstly to form assistant emulsion by reacting, and then the pre-emulsion and initiating agent aqueous solution are added synchronistically to perform reaction, the time lasts for 3 to 5 hours. The water emulsion tackiness agent obtained has good stability, and is free from poison and dissolving agent, and is favor of good health of a worker and environmental protection. A compound produced product obtained by utilizing the emulsion tackiness agent of the invention has the advantages that the ageing resistance is excellent, the viscous force is high, and the foaming is not existent during the impressing and sagging process, and the invention has wide application market.

The invention provides a method for desulfurization of a sulfur recovery tail gas by using a boiler flue gas ammonia method. The method comprises the following steps: (1) burning the sulfur recovery tail gas, wherein sulfide in the sulfur recovery tail gas is converted into sulfur dioxide; (2) converging the burnt sulfur recovery tail gas with the boiler flue gas to form merged flue gas, feeding the merged flue gas to an absorption tower, and discharging the merged flue gas after being absorbed by absorption liquid in a countercurrent manner in the absorption tower, wherein the absorption liquid is a water solution containing an ammonium salt, and the ammonium salt is a mixture of ammonium sulfate and ammonium sulfite. By adopting the method disclosed by the invention, not only can the sulfur recovery rate be better ensured, but also emission of the tail gas achieves the environmental protection requirements; meanwhile, investment and operative difficulty are reduced; the floor area is reduced; the comprehensive utilization efficiency of energy is improved; a good effect of treatment of waste by waste can also be achieved.

The invention discloses a question-answering system based on a domain knowledge graph and a construction method thereof, which comprises the steps of crawling information of a given domain from the Internet, extracting triples in the information, and inserting the triples into a graph database for storage; carrying out word segmentation and syntactic analysis on a question input by a user to obtain a dependency relationship table among words in the question, the dependency relationship being a dependency relationship among the words in one sentence; generating a query semantic graph by traversing the dependency relationship table, and converting the query semantic graph into a query statement of a graph database; and finally, querying the graph database by using the query statement to obtain an answer. The invention further provides a question-answering system by adopting the method. The question-answering system comprises a knowledge graph construction module, a question-answering module, a background processing module and a front-end display module. The invention is oriented to a given field, effective information in the internet is crawled, triples are extracted to create a knowledge graph database, and a question-answering system returns accurate and concise answers by querying the knowledge graph database.

The invention provides an ionic liquid CO2 trapping agent and a preparation method thereof. Due to functional design, the anion is an amino acid radical, and the ionic liquid is synthesized by a halogenated intermediate and is excellent functional ionic liquid; and the product directly serves as the CO2 trapping agent without dehydration and purification. The trapping agent is low in synthesis cost and low in price and has better trapping performance and regeneration performance than amino salt absorbents. The invention can be applied to tower reactors (such as bubble towers, packed towers, plate towers and the like) and the film absorption process; the trapping agent is recycled in a device; and the provided ionic liquid has wide application market in the field of separating and trapping of acid gases.

The invention discloses an intelligent on-vehicle mobile type phase-change heat storage and supply system. The system comprises a tractor and a phase-change heat storage and exchange device, wherein the phase-change heat storage and exchange device is fixedly arranged on the tractor, and comprises a box body; a box body water temperature gauge and a phase-change heat storage material temperature gauge are arranged on the back wall of the box body; a heating pipe group, a cold water inlet pipe, a phase-change heat storage component and a hot water outlet pipe are arranged in the box body in turn from bottom to top; and a bottom water outlet of the box body and the hot water outlet pipe on the upper part of the box body are connected to a same water main through pipelines. The intelligent on-vehicle mobile type phase-change heat storage and supply system provides hot water supply and heating services for heat energy users by using residual heat or waste heat discharged in the form of steam by high energy consumption units such as heat power plants, iron and steel works and the like, and has the characteristics of simple and compact integral structure, high space utilization ratio, high energy storage density, high heat exchange efficiency, intelligent control, stable, safe and reliable operation, convenience for maintenance and operation management and the like.

The present invention provides a system and a method for flight control of automatic putting of an unmanned aerial vehicle for a mobile platform. The control system comprises an unmanned aerial vehicle and a mobile platform. The unmanned aerial vehicle is provided with an unmanned aerial vehicle airborne module and an airborne communication module, the unmanned aerial vehicle airborne module comprises an airborne location module, a flight control module, an embedded main control module, an image collection module, an image processing module, a distance measurement module and a putting module.The mobile platform is provided with a mobile platform vehicle module, a vehicle communication module, a vehicle location module and a location mark, and the location mark is arranged at the upper portion of the mobile platform. The present invention further discloses corresponding enforcement method. On the basis of fixed point targets based on image processing being subjected to the secondary location technology in the prior art, the system and the method add a collaborative module and a collaborative algorithm matchingly used with the collaborative module to push the automatic fixed point putting of the unmanned aerial vehicle to the put of the mobile platform of the unmanned aerial vehicle so as to enlarge the automatically controlled actual usage value of the unmanned aerial vehicle.

The invention discloses an intelligent assistant baby nursing system and method based on the Internet of Things technology. The system comprises an intelligent monitoring system, a backstage management system and an intelligent informing system, and all modules can work cooperatively. According to the intelligent assistant baby nursing system and method based on the Internet of Things technology, an intelligent bracelet, an intelligent milk brewing machine and the backstage management system are combined, and parents are informed of different demands of a baby through the intelligent bracelet which the baby wears. The four conditions that the baby cries physiologically, the baby is hungry and needs milk, the baby wets the bed and needs diaper change and the baby has a fever and needs seeing a doctor in time can be monitored and distinguished, the parents are informed of the different demands of the baby through the intelligent bracelet in time, assistant baby nursing guidance and information are provided for families where babies aged 0-3 are raised, and the intelligentization, automation and integration of assistant baby nursing are achieved finally.

The invention relates to a flame retardant sodium-ion battery electrolytic solution and application thereof. The electrolytic solution comprises the following ingredients with the concentration: 0.001-2mol / L sodium salt, carbonate esters and / or ether organic solvents, 0.1-50% of a flame retardant additive and 0-0.5mol / L other functional additives. The flame retardant sodium-ion battery electrolytic solution is applied into a sodium primary battery, a sodium secondary battery and a sodium ion battery. A sulfuryl fluoride base group-containing compound has good flame retardance, has little influence on the electrochemical performance and can be used as a novel electrolytic solution flame retardant additive; the flame retardant additive is added into the electrolytic solution, so that the combustibility of the electrolytic solution can be reduced. A phosphonitrile base group-containing compound has good flame retardance, has little influence on the electrochemical performance, and can be used as a novel electrolytic solution flame retardant additive; the flame retardant additive is added into the electrolytic solution, so that the combustibility of the electrolytic solution can be reduced. After the electrolytic solution is applied to the sodium battery, the combustion possibility of the electrolytic solution is zero.

The invention discloses a winding device for a textile machine. The winding device comprises a base. A supporting frame is vertically connected to the top of the base. The top of an inner cavity of the supporting frame is connected with a vertical sleeve pipe. A press-down spring is mounted in an inner cavity of the sleeve pipe. The bottom end of the press-down spring is connected with a telescopic rod, and the telescopic rod is connected to the bottom of the inner cavity of the sleeve pipe in a sliding manner and a sleeved manner. The bottom end of the telescopic rod is connected with a horizontal arc press plate. A winding barrel is connected to the bottom of the arc press plate in an attached manner. A horizontal inserting groove is formed in the surface of the winding barrel. A fixed strip is connected in the inserting groove in an inserted manner. The left end of the winding barrel is rotationally connected with an adjusting shaft. The winding device is simple in structure, stable, reliable, simple and convenient to operate and convenient to use, the winding barrel can be fast replaced, and the work efficiency is improved; cloth can be leveled in the winding process and is prevented from being wrinkled and folded, and the winding effect is improved; and the winding device can be suitable for winding work of cloth of different widths, adaptability is improved, and wide application prospects are achieved.

The invention discloses a mobile terminal commercial vehicle monitoring system for realizing a diagnostic technique and Bluetooth communication under an Android platform. The system comprises a commercial vehicle environment, a lower computer and an upper computer, wherein the vehicle environment is provided with an OBD2 (On-Board Diagnostics 2) diagnostic interface which is connected with the lower computer and can be used for transmitting vehicle Can (Controller Area Network) information consistent with a J1939 protocol in the vehicle; the upper computer and the lower computer can communicate with each other through a Bluetooth module; the lower computer further comprises an OBD2 diagnostic interface male end plug, a power supply module, a CAN receiving-transmitting module, a storage module and the Bluetooth module; the power supply module is connected with a control unit, the storage module, the CAN receiving-transmitting module and the Bluetooth module; the upper computer is an Android mobile terminal. The system acquires real-time state data of the vehicle from the vehicle diagnostic interface, and the vehicle is monitored and managed through the Android mobile terminal. The system has the advantages of low cost, convenience, rapidness, high reliability, high portability, freeness from wiring, reduction of failure points and low requirement on technical personnel.

The invention provides an insect-repelling antibacterial fabric manufacture process. The manufacture process comprises the following steps: (a) preparing functional yarns: (b) dyeing, fixing color, and washing with water; (c) sizing; (d) waving; (e) desizing, washing with water and oven-drying; (f) soaking in an insect-repelling solution; (g) drying; and (h) shaping. The insect-repelling antibacterial fabric manufacture process disclosed by the invention is reasonable, and the manufactured fabric has a good sterilizing and insect-repelling effect to prevent bites of insects, such as mosquitoes, flies, fleas and bedbugs. In addition, the fabric has the advantages of high resistance to abrasion and wash, long service life, no adverse effects to a human body due to the adoption of natural materials and wide application market.

The invention discloses a habitable room flower multifunctional nursing system which comprises a flower cultivation box which provides a growing environment for flowers, a collecting processing unit, an LED light complement unit, a humidification unit, a sterilization unit and a power supply unit. The collecting processing unit collects humidness and illumination information of the flower growing environment in the flower cultivation box and sends control instructions to the LED light complement unit and the humidification unit respectively according to the information, the LED light complement unit is used for achieving three-dimensional lighting of the flowers, the humidification unit is used for achieving intelligent humidification of the flowers, the sterilization unit is used for disease control of the flowers, and the power supply unit provides direct-current voltages for the other units. The habitable room flower multifunctional nursing system integrates habitable room flower light complementation, humidification and sterilization, pertinency is strong, the system can be used in a combined mode or used in a single-function mode, good expansibility is achieved, and application market on pot culture fruit trees, facility horticulture and the like is wide.

A flat adhesive disk for grinding the workpiece made of high-speed steel is prepared from cubic boron nitride, dextrin powder, white corundum, wetting agent and ceramic adhesive through proportional mixing, shaping, drying, sintering, examining and trimming. Its advantages are high hardness, toughness, high-temp strength and antiwear performace and long service.

The invention discloses a full biodegradable heat-resistant polylactic acid foaming material and a preparation method thereof. The full biodegradable heat-resistant polylactic acid foaming material consists of the following ingredients by weight percent: 90 to 95 percent of polylactic acid, 1 to 5 percent of PBAT resin, 0.1 to 3 percent of chain expander, 0.1 to 5 percent of nucleating agent and 0.1 to 3 percent of foaming additive. By adopting the foaming material, a continuous foaming technology can be realized, and a prepared foamed product has advantages of uniform size of bubbles and high rate of closed holes; moreover, the advantage of the polylactic acid biodegradation is maintained, the development requirement of the environment-friendly low-carbon sustainable economy can be completely met, and the full biodegradable heat-resistant polylactic acid foaming material has wide application market in the fields such as disposable lunch boxes, snack boxes, hamburger boxes, instant noodles bowels and packaging. The preparation method comprises the following steps: first drying polylactic acid, cooling polylactic acid, then adding other components, and uniformly mixing; then melting and blending the mixture in a dual-screw extruder, drawing bars, cooling the bars by air and cutting the bars into particles. The preparation method is simple, easy to control and implement, high in operability and easy in industrialized production.

The invention provides a preparation method, and relates to the field of nano inorganic non-metallic materials. The preparation method comprises the following steps: adding a metal salt and an organic linear polymer into a solvent, and uniformly stirring the mixture so as to obtain a mixed solution; electrostatically spraying the mixed solution, and obtaining a precursor; heating the precursor to a temperature of 350-500 DEG C at a presintering heating rate and keeping the temperature for 2-4h, and heating the precursor to reach the temperature of 700-1000 DEG C at a calcining heating rate and keeping the temperature for 1-5h, naturally cooling the recursor, and obtaining the nanoZnFe2O4. According to the invention, nanoZnFe2O4 materials with one system and multi-morphology are synthetized by the same method, ZnFe2O4with sphere-shaped, fibre-shaped, chain bead-shaped and rod-shaped morphology is obtained by controlling the raw material ratio and regulating and controlling the heat treatment process, the production cost is effectively reduced, the production efficiency is improved, and the operation is convenient, therefore, the preparation method is suitable for industrial production of a certain scale.

The invention relates to a five-axis linkage ultrasonic composite electric spark micro-finish machining numerical control machine tool. The machine tool comprises a tool electrode, an amplitude-change pole, a flange plate, a piezoelectric transducer, a support disc, a supporting frame, a stand column, a base, an A-direction rotary workbench mechanism, a C-direction rotary liquid tank mechanism, a Z-axis lifting table mechanism, a Y-axis sliding mechanism and an X-axis saddle mechanism. Vibrational excitation is added in the transverse direction of the tool electrode so that workpieces can be transversely machined by the tool electrode, the limitation of a machine tool workpiece forming mechanism is removed, and multi-direction machining of the workpieces is achieved. The workbench mechanism is driven through five-axis linkage for feeding, the feeding direction is stable, the feeding speed is controlled and adjusted by a servo motor, micro-fine feeding machining of the workpieces on a complex line is achieved, and the probability of the tool electrode for machining complex special-shaped faces is increased. In machining of the machine tool, a workbench moves to promote flowing of work liquid, machining heat and machined products can be easily discharged, the work liquid is updated, and the machining efficiency and precision of the workpieces are improved.

The invention belongs to the technical field of microwaves and millimeter waves and provides a dual-mode reconfigurable filter based on a half-mode substrate integrated waveguide and a CSR structure,mainly to solve the problems that an ordinary tunable filter has large insertion loss and bias voltage of a PIN diode can not be directly added to the substrate integrated waveguide. The half-mode substrate integrated waveguide technology is adopted, an upper metal pattern layer comprises a half-mode substrate integrated waveguide copper clad layer, a DC bias circuit, an epsilon-type microstrip line and other structures. Two complementary circular spiral resonators (CSR) are arranged at two sides of the copper clad layer, through applying forward / reverse bias voltage, the PIN diode is conducted or cut off, the upper metal copper and the epsilon-type microstrip line are conducted or cut off, and finally, single dual passband switching is realized. The reconfigurable filter under the features is particularly suitable for a wireless communication system, and has the advantages of small size, low insertion loss, multiple transmission zero points, high out-of-band suppression, convenient DCfeed loading, quick tuning speed, convenient tuning and the like.

The invention provides a method for preparing hydrogenated titanium alloy powder. According to the method, firstly, hydrogen treatment is conducted on titanium alloy master batch, so that the titanium alloy master batch is embrittled and then coarsely crushed, then the titanium alloy master batch is ground through a fluidized bed jet mill, and then the hydrogenated titanium alloy powder with fine granularity is prepared. By means of the method, the process is simple, cost is low, the powder granularity is fine, the hydrogenated titanium alloy powder is clean and free of pollution, efficiency is high, and the method is suitable for producing the hydrogenated titanium alloy powder in a mass mode.

The invention relates to an optimal control method for a 300MW unit to effectively stabilize temperature of main steam. The method includes the steps that firstly, difference value calculation is performed on the temperature of the main steam and a set temperature value of the main steam to obtain a difference value A, and TI-T2=A, wherein T1 is the temperature of the main steam, and T2 is the set temperature value of the main steam; secondly, the function relationship B=F(A) between the difference value A and flow B of desuperheating water is determined, the determining method of the function relationship includes the step that the accumulation amount and the transient time of the flow of the desuperheating water needed by the 300MW unit under certain loads are specifically recorded; thirdly, the relationship between the flow B of the desuperheating water and an opening degree C of an adjusting valve of the desuperheating water is determined; fourthly, the difference value A, the flow B of the desuperheating water, a difference P3 between pressure of the desuperheating water and pressure of superheating steam, and the opening degree C of the adjusting valve correspond to one another one to one so that optimal control over the desuperheating water can be achieved. According to the method, the adjusting quality and the energy utilizing rate are improved, the effect is obvious, and the method can be applied to various desuperheating control technologies and is wide in application market.

The invention provides a gradient alloy material and method for laser strengthening of a copper plate of a crystallizer of a continuous casting machine. The method comprises the following steps: enabling transition of a nickel-based alloy material and a substrate on the working surface of a narrow chromium zirconium copper plate of the crystallizer by a laser cladding technology; and then cladding a special cobalt-based alloy material on the nickel-based alloy transition layer to form a new gradient alloy layer on the working surface of the narrow chromium zirconium copper plate of the crystallizer, wherein the gradient alloy layer is resistant to high temperature corrosion and wear resistant and is of an ultrafine and high-toughness metallographic structure. The cobalt-based alloy material is the novel cobalt-based alloy material prepared from the cobalt-based alloy by adding Hf, B and Si elements on the basis of satellite, and then properly lowering down the melting point of the alloy. Compared with the prior art, the gradient alloy material and method have the beneficial effects that the resistance to high-temperature corrosion and the wear resistance of the working surface of the narrow plate of the crystallizer are improved, the laser repair and reproduction of a crystallizer out of work are realized, and the use performance of the crystallizer can also be recovered and improved; in addition, the problem due to the repair of a chromium zirconium copper crystallizer out of work can be effectively solved; the quality of a casting blank is improved; the casting cost of steel per ton can be decreased.

The invention provides high-temperature-resistant polytetrafluoroethylene lubricating grease for sealing. The lubricating grease is prepared from, by mass, 30-70% of base oil, 25-55% of thickener, 2-5% of structural stabilizer, 1-5% of tackifier and 1-5% of lubricant. The invention further provides a preparation method of the lubricating grease, polytetrafluoroethylene micro powder serves as the thickener to thicken silicone oil as the base oil, meanwhile a certain amount of the structural stabilizer, the tackifier and the lubricant are added at the same time, and then the lubricating grease is prepared through corresponding preparation processes. The prepared polytetrafluoroethylene lubricating grease has excellent high temperature resistance, good sealing performance, excellent lubricity, adhesion and oxidation resistance, high load, water spraying resistance and other properties, the lubricating grease has no suncrack, oil splitting and hardening phenomena at the high temperature more than 200 DEG C, and has good sealing property, adhesion property and high temperature resistance.

The invention discloses an antibacterial mildew-resistant corrosion-resistant flame-resistant integrated nanometer functional paint, and preparation method and applications thereof. The antibacterialmildew-resistant corrosion-resistant flame-resistant integrated nanometer functional paint is mainly composed of a corrosion-resistant flame-resistant epoxy priming paint and an antibacterial mildew-resistant wear-resistant polyurethane finish paint. According to the preparation method, an intumescent flame retardant and graphene are added into the epoxy priming paint as flame retardation auxiliary agents; the paint flame resistance is improved greatly through the cooperative effect of the nanometer material and the intumescent flame retardant; nanometer silver antiseptic and hyperbranched polyethylene imide quaternary ammonium salt nanometer particles are added into the polyurethane finish paint as antibacterial auxiliary agents, and the paint antibacterial mildew-resistant performance isimproved through the cooperative effect of the nanometer silver antiseptic and the hyperbranched polyethylene imide quaternary ammonium salt nanometer particles. The reasonable combination of the priming paint with the finish paint is capable of improving the paint corrosion resistance further. The antibacterial mildew-resistant corrosion-resistant flame-resistant integrated nanometer functionalpaint possesses the antibacterial performance, the mildew resistance, the flame resistance, the corrosion resistance, and the wear resistance, is wide in application range, is simple in preparation method, is convenient in operation, and is convenient for large scale applications.

The invention discloses a flame-retardant potassium ion battery electrolyte and a preparation method thereof. The flame-retardant potassium ion battery electrolyte comprises an organic solvent, sylvite and a flame retardant. The organic solvent is a carbonic ester organic solvent and / or an ether organic solvent. The flame retardant accounts for 0.1-50% of total mass of the flame-retardant potassium ion battery electrolyte. The general structural formula of the flame retardant is as shown in the specification, wherein R1-R6 all can be alkyl groups, alkyloxy group, halogenated alkyl group, halogenated alkyloxy group, halogenated alkylene group, phenyl group, biphenyl group, halogenated phenyl group, halogenated biphenyl group, alkyl silicon, alkyloxy silicon, alkyl phosphate, alkyloxy boron or amide group. According to the flame-retardant potassium ion battery electrolyte, safety of a potassium ion battery can be raised, and cycling stability of the battery and battery capacity retention ratio also can be enhanced.

The invention discloses a mint fermented bean curd silverfish sauce and a preparation method of the mint fermented bean curd silverfish sauce. The mint fermented bean curd silverfish sauce is prepared from the following raw materials in parts by weight: 10-15 parts of silverfish, 80-90 parts of pod pepper, 15-20 parts of red fermented bean curd, 5-10 parts of mint leaf, 3-5 parts of milk, 2-3 parts of cream, 4-6 parts of flour, 0.2-0.3 part of white pepper powder, 0.3-0.4 part of cinnamon powder, 20-30 parts of black bean sauce, 1-2 parts of fructose, 0.5-1 part of hot chili oil, 3-5 parts of soybean sauce, 1-3 parts of cooking rice wine, 2-3 parts of vegetarian oyster sauce, 3-4 parts of minced onion, 4-6 parts of mashed garlic, 2-3 parts of minced ginger, 4-5 parts of hawthorn seed powder, 3-5 parts of hydrolyzed plant protein powder, 2-3 parts of white sugar, 1-2 parts of salt, 2-3 parts of negundo chastetree leaf powder, 0.1-0.15 part of disodium nucleotide, 0.1-0.2 part of sodium benzoate, 0.1-0.15 part of acesulfame, a proper amount of plant oil and a proper amount of water. The mint fermented bean curd silverfish sauce is heavy and lasting in flavor, rich in nutrition, delicious in taste and strong in seasoning, is scientific, healthy, tasty and safely edible, and is suitable for various crowds.

The invention discloses simulated rainfall pattern macro-porous pavement water drainage capacity testing equipment and a testing method. The simulated rainfall pattern macro-porous pavement water drainage capacity testing equipment comprises simulated rainfall system equipment, a test bed, a test bed supporting frame, a test piece clamp, a scale plate for measuring the rainfall height, and a drained water collecting device. The problems of actual water drainage capacity test of macro-porous water drainage asphalt pavements can be solved by quantitatively simulating different rainfall patterns, pavement cross slopes, the rainfall height and the vertical and lateral flow of water on the asphalt pavements. By adopting the testing equipment disclosed by the invention, the defects that no tilt angles can be provided, the time of test processes is limited, different rainfall patterns cannot be simulated, and the rainfall flow velocity and rainfall pressure intensity cannot be controlled when water permeability coefficients of an asphalt mixture test piece are tested by using existing testing regulations can be overcome, and the real lateral water drainage capacity and vertical water drainage capacity of the macro-porous water drainage asphalt pavements under different rainfall patterns can be fully and effectively simulated.

The invention discloses a mechanical keyboard button structure. The mechanical keyboard button structure comprises a base plate, a circuit board, a mechanical switch and a key cap which are sequentially connected from bottom to top, the mechanical switch is used for guiding the key cap to do vertical displacement and converting a press force on the key cap into a switching signal to the circuit board so as to make a circuit conducted, the mechanical switch comprises a support plate and a switch core shaft and also comprises scissors, the switch core shaft is arranged on the support plate, the upper part of the scissors is fixed with the bottom surface of the key cap, the lower part of the scissors is fixed with the support plate, and the switch core shaft passes through the scissors and props against the bottom surface of the key cap. In the mechanical keyboard button structure, a mechanical shaft structure and a scissors structure are combined, so that the button is more stable in supporting and has a longer service lifetime; meanwhile, the corner is compatible with a better hand feeling and a function; the structure can be used for a keyboard with lower stroke, so that the keyboard is thinner and lighter and is wider in application market; and finally, when a trigger circuit below a single key is damaged, the whole circuit is not needed to change, and the single button can be maintained and replaced.

The invention discloses an intelligentize myopia detection and intervention treatment integration platform characterized by comprising a liftable trolley, an optical flat, a one-dimensional electric control translation bench, a face holder, a projector, a fluorescent lamp, an interactive keyboard, a lower computer and a host computer; the intelligentize myopia detection and intervention treatment integration platform can improve the disadvantages of existing myopia inspection schemes, and can improve myopia inspection automation, intellectualizing and networking level; in addition, a scientific myopia recovery training scheme is combined so as to help teenagers to improve myopia conditions through a lossless method.

The present invention discloses a grinding wheel wear real-time compensation method based on a numerical control system. The grinding wheel wear extent is calculated and updated in real time according to the changing of the current of a spindle motor, the second development interface, at an interpolator layer, of the numerical control system is employed to correct G-code theory operation track points according to the real-time updated grinding wheel wear extent so as to realize the real-time compensation of the grinding wheel wear, the correction of the current device mechanical structure is not needed, the corresponding secondary development of the numerical control system is needed to realize the real-time grinding wheel wear compensation, and the device improvement cost is low; because the parameters of a cutter and cutter compensation cannot be frequently corrected so as to greatly improve the grinding processing efficiency and improve the grinding processing precision and the consistency of the polishing effect; the grinding wheel wear real-time compensation method based on the numerical control system combines a matching automatic programming module to be applied to the grinding wheel wear real-time compensation function requirement of different industries and different technology requirements with wide application markets and especially applied to the face profile curve edging field of complex shapes of materials such as stones, ceramics and glass, etc.