334results about How to "Improve diffusion efficiency" patented technology

The invention relates to a preparation method for carbon microspheres with high specific surface area. The preparation method includes the following steps: a carbon material, an alkaline activator, a binder and a solvent are mixed and stirred to obtain slurry, or the alkaline activator, the binder and the solvent are mixed and stirred to obtain slurry; all the materials are granulated to obtain primary carbon microspheres; the primary carbon microspheres go through activation, pickling, washing and drying to obtain the carbon microspheres with the high specific surface area. The preparation method provided by the invention adopts low-value carbonaceous waste materials or amorphous carbonaceous raw powders to prepare the microsphere carbon material with the high specific surface area, so as to meet the use requirements of multiple fields; the preparation technique is simple, the operation is convenient, and large-scale production is facilitated; the prepared carbon microspheres with the high specific surface area have an excellent spherical structure, a high degree of sphericity and a controllable particle size, and barely contain metal impurities.

The invention provides a tungsten trioxide/polyaniline core-shell nanowire array radiochromic film and a preparation method thereof. The preparation method comprises the following steps: dissolving white tungstic acid in aqueous hydrogen peroxide liquor to prepare peroxide tungstate liquor; coating the peroxide tungstate liquor on an electric conductive face of a clean electric conductive substrate; dissolving tungstate in alcohol to form precursor liquor, fixing the electric conductive substrate in a reaction kettle, adding the precursor liquor into the reaction kettle, carrying out a reaction at 150-250 DEG C for 8-16 hours, and taking out and carrying out thermal treatment at 300-450 DEG C for 1-3 hours to obtain a tungsten trioxide nanowire array; and mixing aniline and dilute sulphuric acid to form electrolyte for preparing polyaniline and carrying out electro-polymerization on polyaniline to obtain the tungsten trioxide/polyaniline core-shell nanowire array radiochromic film. The preparation process is convenient to control, lower in preparation cost and easy to realize industrialization. The film has the advantages of large spectrum adjustment range, abundant radiochromic types, high coloring efficiency, fast response speed, long cycle life and the like.

The invention discloses an SAPO molecular sieve, which has single crystals in sheet structure. The SAPO molecular sieve has moderate pore size, and can be used as a catalyst with long service life for olefin preparation from methanol. The invention also discloses a preparation method of the SAPO molecular sieve. The method us as below: activating a raw material of layered aluminosilicate, mixing the raw material with an phosphorus source and water, and homogenizing to obtain a wet masterbatch; drying and grinding the wet masterbatch to obtain a dry powder; and finally distilling the dry powder for crystallization, so as to obtain a raw powder for sheet SAPO molecular sieve. The method requires addition of a template agent, realizes low cost synthesis of SAPO molecular sieve and high additional value utilization of natural layered aluminosilicate, accelerates the rate of diffusion of various substances in the channels of the molecular sieve, increases the diffusion efficiency, and the advanategs of low equipment investment, simple operation and environment-friendliness.

A diffuser plate with higher light diffusion efficiency and brightness applied to backlight module of Liquid Crystal Display TV (LCD TV) for providing uniform light is disclosed. An optical lens with a diffusion layer is disposed on one side of the substrate. The diffusion layer is arranged above the optical lens for enhancing diffusion effect. The other side of the diffuser plate can be a plane or having a lens structure. By Lenticular lens, the homogeneity of emitted light is improved so as to reduce the amount of diffusion particles being added into the diffusion plate Therefore, the light transmission is increased and the brightness is enhanced. Meanwhile, ability of shielding lamps is considered and Moiré effect is eliminated. Moreover, the diffusion layer is co-extruded on surface of the Lenticular lens together with the substrate so that the device is easy to be produced.

The invention is to improve a toner diffusing efficiency in a toner container, thereby increasing a toner containing capacity. The toner container includes plural screws which diffuse the toner in plural directions and diffuse the toner in different positions. A toner filling efficiency in the collecting container is improved by providing plural toner diffusing points within the toner container.

The invention discloses a grain boundary diffusion method of an R-Fe-B rare-earth sintered magnet, an HRE diffusion source and a fabrication method thereof. The grain boundary diffusion method comprises the following steps of forming film engineering A on a high-temperature resistant carrier, wherein HRE compound powder is attached onto the film, and the HRE is selected from at least one of Dy, Tb, Gd and Ho; and placing the R-Fe-B rare-earth sintered magnet and the high-temperature resistant carrier processed by the engineering A in a processing room, performing thermal treatment on the R-Fe-B rare-earth sintered magnet and the high-temperature resistant carrier in vacuum or inert atmosphere, and supplying HRE engineering B to a surface of the R-Fe-B rare-earth sintered magnet from the high-temperature resistant carrier. By the method, consumption of a heavy rare-earth element can be reduced, and the loss of residual magnetism Br of the magnet is controlled as well as the coercivity is improved.

A nitride-based semiconductor LED comprises a substrate; an n-type nitride semiconductor layer formed on the substrate; an active layer formed on a predetermined region of the n-type nitride semiconductor layer; a p-type nitride semiconductor layer formed on the active layer; a current spreading layer formed on the p-type nitride semiconductor layer; a p-electrode formed on the current spreading layer, the p-electrode having two p-type branch electrodes; and an n-electrode formed on the n-type nitride semiconductor layer on which the active layer is not formed, the n-electrode having one n-type branch electrode. The n-type branch electrode is formed so as to be inserted between two of the p-type branch electrodes, and a distance from the outermost side of a transparent electrode adjacent to the n-electrode to the p-electrode is identical at any position.

The invention discloses a backlight module and the liquid crystal display device thereof; the backlight module comprises a light source, a frame, a first diffusion sheet material and a second diffusion sheet material; the light source emits light; the frame has a base plate and a lateral plate; the lateral plate and the base plate are limited in a containing space; the light source is equipped in the containing space; the first diffusion sheet material is equipped in the containing space and is positioned above the light source; the second diffusion sheet material is equipped on the side where the first diffusion sheet material stays far away from the base board; the first diffusion sheet material is virtually separated away from the second diffusion sheet material. After passing through the first diffusion sheet material and the second diffusion sheet material, the light radiates out of the backlight module.

A fuel cell includes a gas channel-forming member that forms a channel for supplying a reactant gas to a plane of an electrode. A basic structure of the gas channel-forming member is a corrugated plate portion in which ridge portions and trough portions continuously alternate with each other. In the gas channel-forming member, a plurality of corrugated plate portions are interconnected. Specifically, two adjacent corrugated plate portions are interconnected so that the trough portions of one of the two connect to the ridge portions of the other corrugated plate portion. The gas channel-forming member is disposed so that the direction of alignment of the connection planes S formed by the interconnection between the trough portions and the ridge portions is parallel to the plane of the electrode. This structure improves the diffusion efficiency of the reactant gas in the gas channel.

A designing method for intelligent phonetic information bridge designs a program taking the telephone phones as the media and using keys of DTMF identified caller of a phone for operating the IVR system on a platform of CTI system, ACD system, IVR, MDB and an aCC systems controlled by computer and connected by PSTN to determine the calling one identity by verification and presents corresponding phone hint by finding designed situation of said calling one personality in MDB to let the calling one select concrete information service items by phone dual voice multi-frequency key to find out the information provider providing related information service and waiting for access to select one bit or multiple bits( telephone conference) according to the route strategy and connect bridges of call in-and-out to exchange information.

The invention relates to a polymer preparation method, particularly relates to a continuous production process of polymethyl methacrylate and belongs to the technical field of preparation of a polymer. According to the invention, polymethyl methacrylate is continuously produced through prepolymerization, secondary polymerization and tertiary polymerization sequentially. The continuous production method of polymethyl methacrylate is based on continuous mass polymerization, combines the advantages of mass polymerization and solution polymerization, effectively controls reaction heat, increases monomer conversion rate and enhances polymer purification efficiency.

The invention provides a supersonic velocity diffuser for a supersonic velocity rotational flow natural gas separator as an important component of the separator, wherein the diffuser is comprised of four parts of a contraction pipe part, a straight pipe part, an expansion pipe part and a diversion fin, wherein profile curve of the contraction pipe part is high order polynomial, profile curve of the expansion pipe part adopts circular arc adding straight line, while the parts are smoothly connected with each other to reduce disturbance of air current. Bottom surface of the diversion fin as a truncated cone surface corresponds with an inner wall of a panel pipe and is fixed on the inner wall. On the bottom surface, arc line is a high order polynomial curve, and the bottom surface profile thickness varies according to the high order polynomial law. Diversion fin top contraction becomes bout, parallel in axial straight line. Set up 2 -6 slices diversion fin in this supersonic velocity diffuser, may rotational flow natural gas circulation melts for axial flow, have higher expand to press efficiency, have the compression resistant force fluctuation than winner to disturb ability, can raise the step up ratio of supersonic velocity rotational flow natural gas separator, strengthen the applicability of supersonic velocity rotational flow natural gas separator. Top part of the diversion fin is contracted into a straight line parallel to an axial. 2-6 pieces of diversion fins are provided within the supersonic velocity diffuser for converting the rotational flow natural gas flow into an axial flow, which has higher efficiency of pressure expanding, stronger compression resistant force fluctuation capacity, can raise the step up ratio and applicability of the supersonic velocity rotational flow natural gas separator.

The invention relates to a method for carrying out anatonosis by adopting laser plasma impact waves in a chemical heat treatment process. According to the method, induction to generate plasma impact waves are generated by induction with high-power short-pulse laser, act on materials and are combined with chemical heat treatment, thereby improving the surface property of metal materials and members and enhancing the oxidation resistance, abrasion resistance and corrosion resistance of the metal material and the members, wherein the chemical heat treatment can be alumetizing, carburization, nitridation, aluminum-chromium penetration and the like. The method disclosed by the invention has the beneficial effects that the temperature of the chemical heat treatment in order to obtain identical penetration layer depth, the temperature of the chemical heat treatment can be obviously reduced, and the treatment time is shortened, thereby reducing the deformation of workpieces.

The invention discloses an optical diffusion film. The optical diffusion film is characterized by being composed of a polyester film layer, diffusion layers and hardened layers, wherein the polyester film layer is located in the middle, the two sides of the polyester film layer are coated with the diffusion layers, and the diffusion layers on the two sides of the polyester film layer are coated with the hardened layers; the thickness of the optical diffusion film ranges from 63 microns to 345 microns; each diffusion layer is a coating formed in the mode that a diffusion layer coating composition composed of a silicon source, a silane coupling agent, A-101 thermoplastic acrylic resin, ethanol, water and diluted hydrochloric acid is dried and cured at the temperature of 60-80 DEG C; each hardened layer is a coating formed in the mode that a hardened layer coating composition composed of ultraviolet cured resin, reactive diluent, photoinitiator and a leveling agent is cured under ultraviolet irradiation. The optical diffusion film has balanced light transmittance, haze and light diffusion performance, maintains high rigidity and dimensional stability and can be widely applied to manufacturing of liquid crystal display devices, advertising lamp boxes, illumination lamps and other devices requiring light sources.

A laser light source is disclosed that includes a laser device, a first diffusion element, a fluorescence wheel, and a second diffusion element. The fluorescence wheel emits a fluorescent light when excited by the laser light, and before reaching the fluorescence wheel, the laser light emitted by the laser device is transmitted through the first diffusion element that is fixedly arranged. As the second diffusion plate rotates about its axis, the laser light from the first diffusion element and the fluorescent light from the fluorescence wheel transmit through the second diffusion plate.