54results about How to "Guaranteed Diffusion Effect" patented technology

The invention discloses a clustering method for building laser scan point cloud data. The method comprises the following steps: converting the point cloud data into two-dimensional data to acquire a set X; appointing density threshold value MinPts; calculating the longest distance of MinPts objects with shortest distance from the point towards any point in the X; counting maximal and minimum value of the longest distance of all the points; classifying the difference value of the maximal and minimum value of the longest distance into n equal portions; making a circle by adopting the point generating the minimum value of the longest distance as the center and the gradual increasing value of the distance of the equal portions as the radius; calculating the number of points in each circle; adopting the difference value as a abscissa; adopting the numbers of the points in each circle as an ordinate; conducting fitting to form a curve; seeking points of inflexion of the curve; taking the number value of the abscissa corresponding to the points of inflexion as the value of sigma; building AQ-DBSCAN algorithm by adopting the MInPts and the sigma as conditions; conducting clustering on the points in the X to obtain the belonged cluster analysis of the points in the point cloud in the parts of the building.

The invention discloses a compound positive material of lithium ion battery phosphate and lithium titanate as well as a preparation method thereof; the material containing metal, lithium and phosphorous source or/and superfine LiMPO4 or/and superfine Li4-yTi5O12-sigma react to synthesize the compound material of LiMPO4 and Li4-yTi5O12-sigma having chemical bond and strong physical bond at the temperature under inert gas or reducing atmosphere; the compound positive material with excellent electrochemistry performance is obtained by adding lubricant ball mill. The compound positive material prepared by the method has cheap materials, low cost, unique technique, excellent electrochemistry performance of the production material and easy realization on industrialization.

The present invention relates to a U-shaped ventilation working face goaf full-face curtain nitrogen injection fire preventing and extinguishing method comprising determining the nitrogen flow rate QN of a main pipeline, and is characterized in that the laying number of nitrogen injection pipes n0=int(Ly/Lb+1). When n0=3, the method comprising steps of (1) laying the first nitrogen injection pipe full face along an inner side of a rear chute at the rear portion of a support, propelling to a position away from a goaf boundary with an LK distance in the working face propelling direction along a coal face, performing leaking stoppage on upper and lower ends, and enabling a control valve of the nitrogen injection pipe to continuously inject nitrogen to the goaf full face; (2) propelling to a position where a distance between two nitrogen injection pipes is goaf nitrogen injection pipeline array pitch Lb along the coal face, repeating the method (1) to lay the next nitrogen injection pipe, and achieving nitrogen injection of the next nitrogen injection pipe; and (3) repeating the method (2) to achieve continuous nitrogen injection to the goaf full face by the third nitrogen injection pipe. A continuous nitrogen curtain is formed at the whole goaf by nitrogen injection, residual coal low-temperature oxidation is suppressed, nitrogen is prevented from rushing into the coal face, the nitrogen diffusion radius is fully utilized, and the nitrogen diffusion effect and nitrogen inerting efficiency are improved.

An image sensor is formed on a multilayered substrate to improve infrared response. The multilayered substrate uses a silicon-germanium alloy to improve infrared response. In one embodiment, the silicon-germanium alloy has a germanium concentration gradient such that an upper portion of the silicon-germanium alloy has a lower germanium concentration than a lower portion of said silicon-germanium alloy.

The invention relates to a production technology for a composite co-extrusion PS diffuser plate, and the technology mainly comprises steps of formula design, material mixing, extrusion, cutting, plate piling and the like. The material mixing step comprises high-speed hot mixing and sieving warehousing. The extrusion step employs a composite co-extrusion technology. A core-layer extruder is taken as a main machine, the main machine employs a screw with the diameter of 130 mm and the draw ratio of 38, and the main machine average rotation speed is 70 r/min. A surface-layer extruder is taken as an auxiliary machine, the auxiliary machine employs a screw with the diameter of 60 mm and the draw ratio of 33, and the auxiliary machine average rotation speed is 60 r/min. The main-machine material canister heating temperature is divided into seven stages, and the temperature is gradually raised. The auxiliary-machine material canister heating temperature is divided into five stages. Through formula design, equipment layout and technological parameter improvement, the diffuser plate is improved in light transmittance, relatively haze and center brightness, and the backlight module covering effect is good.

The invention discloses a preparation method of a sintered neodymium-iron-boron magnet surface diffusion layer. The preparation method comprises the following steps: depositing a Cu-M alloy with thickness of 1-5mu m on the sintered neodymium-iron-boron magnet surface with thickness of 1-8mm by magnetron sputtering; performing heat treatment for 1-10 hours at a vacuum degree of 10<-2>-10<-4>Pa and a temperature of 800-1,100 DEG C; performing heat treatment for 1-10 hours at 550-750 DEG C; and finally, performing heat treatment for 1-5 hours at a temperature of 400-500 DEG C to obtain the sintered neodymium-iron-boron magnet surface diffusion layer. In the method disclosed by the invention, the prepared diffusion layer does not contain expensive rare earth elements, and thus the use of rare earth elements is reduced while the diffusion effect is guaranteed; and the method is simple and effective and remarkably improves the magnet coercivity on the premise of guaranteeing the remanence of the sintered neodymium-iron-boron magnet. The method disclosed by the invention is applicable to the sintered neodymium-iron-boron magnet containing 30-35% of rare earth by mass.

The invention discloses an SPE (Solid Polymer Electrolyte) electrolysis system used for tritium concentration. The electrolysis system comprises an electrolytic tank system, a tritiated water supply system, a gas-liquid separator, a tritiated water collection system, a hydrogen drying system, an oxygen drying system, a hydrogen collection system, a product oxygen collection and storage tank, a condensation system and a detection and control system. The invention further provides a realization method for the SPE electrolysis system used for tritium concentration. The electrolysis system can meet all process demands of aqueous phase tritium concentration, wherein the processes include a tritiated water circulating concentration process, a hydrogen leakage emergency power-off process, a molecular sieve drying bed continuous treatment process and the like. Meanwhile, due to the tritiated water circulating concentration, the tritiated water concentration can be quantitatively controlled, so that the tritium concentration efficiency is greatly improved and a large amount of tritium-poor hydrogen is obtained.

The invention discloses a denitrification culture device and a method for measuring denitrification rate. The denitrification culture device comprises a base, a plurality of straight pipes and a rotating unit, wherein a circle of fixing grooves are formed on the base and around the center of the base; a detachable rubber plug is arranged at a bottom end opening of each straight pipe, and a detachable cover is arranged at a top end opening of each straight pipe; one end of a metal wire is fixed on the inner side of each cover, and the other end of the metal wire is connected with a magnet; whenthe covers cover the top end openings of the straight pipes, the magnets are located in the straight pipes; the rotating unit comprises a rotor, a rotating shaft and a motor, the rotor is detachablyinstalled in the center of the base, the rotating shaft is vertical to the base, and the two ends of the rotating shaft are connected with the rotor and the output end of the motor respectively. A gasflow culture technology and a <15>N isotope tracing technology are combined, so that higher sensitivity of the isotope tracing method is ensured, and tightness of a denitrification culture system anddiffusion of gas are also guaranteed.

The invention relates to the technical field of silver paste, in particular to a highly dispersed conductive silver paste. The highly dispersed conductive silver paste comprises the following components in parts by mass: flake silver powder 60-72 part, conductive graphene 1-1.5 part of nitrocellulose, 0.3-0.5 part of triethanolamine 1-2 part, aluminum isopropoxide 0.1-0.2 part, polyethylene glycol1-2 copies. The invention has the advantages of unique design, reasonable composition, convenient preparation, excellent electric conductivity, good adhesion to the substrate, high electric conductivity and mechanical performance of the coating, and at the same time, the adhesion, processability, hardness and diffusion of the coating are ensured, and the environmental pollution is small.

The invention relates to high-efficiency composite type anti-sticking smooth master batch for producing a CPP (casting polypropylene) membrane. The high-efficiency composite type anti-sticking smooth master batch is specifically prepared from the following components in parts by mass: 75-80 parts of a polypropylene material, 7-11 parts of a silica material, 8-12 parts of an erucic acid material and 1-2 parts of a dispersing agent. Tests show that when a CPP heat-seal type membrane is prepared, to achieve a good anti-sticking and smooth effect, the addition ratio of the master bath is 0.4%, the addition ratio of a conventional additive is 0.2%, but the ratio of a polypropylene material in the master bath is as high as 80%, that is, the amount of the silica material and the erucic acid material is only 0.08%, which is far less than the amount of 0.2% of the conventional additive, so that the amount of the master batch can be greatly reduced, and the production cost of a company can be lowered.

The invention discloses a Mini LED dodging sheet, a preparation process thereof and a backlight module, the dodging sheet comprises a substrate, a plurality of micro lens structures arranged at one side of the substrate and a convex lens structure arranged at the other side of the substrate, the plurality of micro lens structures are arranged in a plurality of rows, and the convex lens structure is arranged on the other side of the substrate. The multiple micro-lens structures in two adjacent rows are arranged in a staggered mode or a random mode or an orthogonal mode, the two adjacent micro-lens structures are partially overlapped, each micro-lens structure comprises a concave structure and/or a convex structure, and the convex lens structure comprises multiple convex lens bodies with set shapes. According to the Mini LED dodging sheet, the micro lens structure is arranged at one side of the Mini LED dodging sheet, the convex lens structure is arranged at the other side of the Mini LED dodging sheet, so that a lamp bead panel emits light uniformly, the utilization efficiency of the light is improved, the light transmittance is enhanced while the haze is guaranteed, the superposition photoetching technology is adopted, and the duty ratio of the micro lens structure on the Mini LED dodging sheet can reach 100%.

The invention relates to a mildew-proof PVC film and a production method thereof. The mildew-proof PVC film is specifically prepared from the following components in parts by mass: 60-80 parts of PVC,10-30 parts of 7 type PVC, 10-15 parts of calcium powder, 2-5 parts of ESO, 35-45 parts of DPHP, 1-2 parts of BS-105, 1-2 parts of a special mildew preventive, 1-2 parts of R-666, 0.002-0.005 part of5007, 0.005-0.01 part of 3214, 0.02-0.03 part of 8793, 0.2-0.5 part of 736A and 0.5-1 part of a flame retardant. Compared with a commercially available mildew-proof PVC film, the mildew-proof PVC film disclosed by the invention has the advantage of long-term mildew prevention and has high market competitiveness.

The invention relates to a mildew-proof and bacteria-proof PVC film and a production method thereof. The mildew-proof and bacteria-proof PVC film is mainly prepared from the following components in parts by mass: 60-80 parts of PVC, 10-30 parts of 7-type PVC, 10-15 parts of calcium powder, 2-5 parts of ESO, 35-45 parts of DPHP, 1-2 parts of BS-105, 1-2 parts of a special mildew preventive, 1-2 parts of graphene powder, 1-2 parts of R-666, 0.02-0.03 parts of 8793, 0.2-0.5 part of 736A, 0.5-1 part of a flame retardant and 1-2 parts of antibacterial traditional Chinese medicines. Compared with mildew-proof and bacteria-proof PVC films sold in the market, the mildew-proof and bacteria-proof PVC film has long-acting mildew-proof and bacteria-proof effects and relatively strong market competitiveness.

The invention relates to a surface hole structure in a dam body of a high concrete dam. The surface hole structure in the dam body of the high concrete dam is simple, stable, firm, high in applicability, and simple and convenient to construct and can achieve the purposes of reducing the impact of outflowing water jet of a surface hole on an energy dissipation area at the back of the dam, ensuring the construction safety and decreasing the workload of energy dissipation and impact treatment at a downstream. According to the technical scheme, the dam body of the high concrete dam comprises a surface hole capable of releasing flood water. The surface hole structure in the dam body of the high concrete dam is characterized in that a wedge-shaped body which can contract to the middle is arranged close to each of the two sidewalls and an outlet of a flowing channel of the surface hole; a hollow part with the length of L1 is arranged at the outlet end of a bottom plate of the flowing channel of the surface hole. The surface hole structure in the dam body of the high concrete dam is applicable to narrow-river-valley, high-waterhead and large-discharge concrete dam engineering.

The invention provides a displayer, a display panel and a making method thereof. The display panel comprises multiple data lines, multiple grid lines, a spacer arranged on any one data line, a spacerarranged on any one grid line and spacers arranged on any data line and any grid line; the spacer located on any one data line is provided with a groove structure in the extending direction of the data line; the spacer located on any one grid line is provided with a groove structure in the extending direction of the grid line; the spacer located on any data line is provided with the groove structure in the extending direction of the data line, and/or the spacer located on any grid line is provided with the groove structure in the extension direction of the grid line. Accordingly, the spacer isplaced on the data line and/or the grid line, the influence of an electric field generated by the data line and/or the grid line on liquid crystal molecular deflection can be weakened, and the problem that due to the electric field generated after the data lines and/or the grid lines are energized, light leak is caused by liquid crystal molecular deflection is solved.

A defroster for a vehicle comprises a defrosting duct and a defrosting grid. The defrosting duct has a defrosting auxiliary hole having a diffuser shape, and the defrosting auxiliary hole guides air treated by an air conditioner to discharge towards a lower side of a windshield; and the defrosting grid is disposed over the defrosting duct to form a moving flow path of the air treated by the air conditioner. Besides the defrosting auxiliary hole, discharged flow quantity of the air treated by the air conditioner is ensured via a main hole and a side defrosting hole so as to satisfy relevant regulations of defrosting performance, so that frost on the windshield of the vehicle can be effectively eliminated.

The invention discloses an EPS special-shape package mold without a vapor lock. The EPS special-shape package mold without the vapor lock comprises an upper mold and a lower mold. A hydraulic rod is arranged between the upper mold and the lower mold. A material gun is arranged on the top of the upper mold. A water outlet is arranged on the surface of the material gun. Vapor connectors are arrangedon both the two sides of the material gun. An air port is arranged on the side face of the material gun. A water channel is formed inside the material gun. According to the EPS special-shape packagemold without the vapor lock, because the upper mold is arranged, it can be avoided that water appears on the surface, when the upper mold is heated, high-temperature vapor is fed into the upper mold through the vapor connectors, and after the vapor enters the upper mold, the heat of vapor disperses quickly on the surface of a grid by utilizing the all-directional dispersing effect of the grid, andthe surface temperature of the upper mold and the surface temperature of a clamping frame quickly rise; and when high-temperature vapor makes contact with the grid, the vapor quickly loses heat to beliquified into water drops on the surface of the grid in a condensed manner, then the vapor and the water drops enter the water channel through a hole groove in the surface of the water channel, water is drained through a water outlet in the surface of the water channel, and vapor is exhausted through the water outlet in the surface of the water channel as well.

The invention relates to the technical field of silver paste, in particular to a conductive silver paste for a photovoltaic cell. The conductive silver paste for the photovoltaic cell comprises the components of, by weight, 1-5 parts of body glass, 0.1-0.5 part of auxiliary glass, 35-60 parts of organic binding agents, 14-19 parts of thermoplastic polyimide resin and 50-70 parts of conductive phase. The conductive silver paste for the photovoltaic cell is unique in design, reasonable in composition and convenient in preparation, has excellent conductivity and good adhesion with a base material, the adhesion, workability, hardness and diffusivity of a coating are ensured while improving the conductive and mechanical properties of the coating, and small environmental pollution is achieved.

The invention relates to the technical field of information transferring, and discloses a data analysis system based on the Internet of Things. The data analysis system based on the Internet of Thingscomprises a fixing frame, a moving mechanism and detection mechanisms, wherein the top surface of the fixing frame adopts a hollow state; the moving mechanism is fixedly mounted on the inner wall ofthe fixing frame; the moving mechanism comprises a guide rail, a rubber barrel, a rolling ball, gas pipe fittings, a clamp ring, a connecting plate and a detection tank; the middle part of the bottomsurface of the guide rail is a semicylinder and the center is hollow; the inner wall of the middle part of the guide rail is in sleeving connection with the rubber barrel; the inner wall of the rubberbarrel is in sleeving connection with the rolling ball; two ends at the guide rail, of the fixing frame are separately and fixedly connected with gas pipe fittings; two side surfaces of the clamp ring are in sleeving connection with a rubber barrel; the rolling ball is arranged corresponding to the center of the clamp ring; the bottom surface of the clamp ring is fixedly connected with the connecting plate; and the bottom surface of the connecting plate is fixedly connected with the detection tank. Compared with a conventional data acquiring manner, the moving mechanism is arranged, so that the data analysis system based on Internet of Things can move on the farmland to enlarge detection range, requirements for knowledge and techniques of a user are low, and popularizing and using of agriculture Internet of Things are facilitated.

The invention relates to the field of metal forging, in particular to a homogenization treatment process of S31254 super austenitic stainless steel. The homogenization treatment process specifically comprises the following steps that step firstly, an S31254 steel ingot is heated to 720-820 DEG C, heating thoroughly is conducted, heating is conducted to 1100-1200 DEG C at a heating rate of 200-250 DEG C/h, and heating thoroughly is conducted to obtain a heated thoroughly steel ingot; and secondly, the heated thoroughly steel ingot is heated to 1240-1280 DEG C, heat preservation is conducted for 18-22 h, the steel ingot is discharged out of the furnace to obtain a discharged steel ingot, upsetting and drawing deformation is conducted on the discharged steel ingot, and then heat preservation continues to be conducted for 18-22 h at 1240-1280 DEG C. According to the method, rapid heating in a precipitated phase temperature sensitive interval is combined with two times of diffusion and upsetting and drawing processes, and the two processes supplement each other, so that the problem of a primary precipitated phase of an S31254 material is solved, the edges, the radius and the center of the steel ingot are free of the primary precipitated phase, the time is short, and the production efficiency is remarkably improved.