128results about How to "Reduce uneven distribution" patented technology

A red nitride phosphor of formula (I) or (II), and two green phosphors of formulas (III) and / or (IV) are included.MwAlxSiyBzN((2 / 3)w+x+(4 / 3)y+z):Eu2+  (I)M is any of Mg, Ca, Sr and Ba, and 0.5≦w≦3, x=1, 0.5≦y≦3 and 0≦z≦0.5,MpSiqN((2 / 3)p+(4 / 3)q):EU2+  (II)1.5≦p≦2.5 and 4.5≦q≦5.5,MxMgSizOaXb:Eu2+  (III)M is any of Ca, Sr, Ba, Zn and Mn, X is any of F, Cl, Br and I, and 6.5≦x≦8.0, 3.7≦z≦4.3, a=x+1+2z−b / 2 and 1.0≦b≦1.9,SicAldOfNg:Eu2+  (IV)c+d=6, 5.0≦c<6, 0<d≦1.0, 0.001<f≦1, 7≦g<8.

The invention relates to a shaft sealing device with magnetic fluids, which is characterized in that based on an existing shaft sealing device with magnetic fluids mainly comprising a rotating shaft, a non-magnetic metal shell, magnetic poles, a permanent magnet, the magnetic fluids and a rubber ring, sealing pole teeth made of soft magnetic materials are additionally arranged in sealing pole tooth grooves of the magnetic poles, a sealing pole tooth ring is sleeved on the rotating shaft, the inner diameter of the sealing pole tooth ring is 0.1-0.6mm larger than the diameter of the rotating shaft, the outer diameter of the sealing pole tooth ring is 0.1-0.3mm smaller than the inner diameter of each tooth groove, the thickness of the sealing pole tooth ring is 0.1-0.3mm smaller than the width of each tooth groove, the magnetic fluids are distributed in an annular sealing gap between the rotating shaft and the sealing pole tooth ring, and each magnetic pole comprises two half annular magnetic poles. The positions of the sealing pole teeth of the device can be changed radially along the rotating shaft to adjust coaxiality of the rotating shaft and the sealing pole teeth, uneven distribution of the annular sealing gap in the circumferential direction of the rotating shaft is decreased, reduction of the pressure bearing capacity of the device and abrasion of the rotating shaft and the sealing pole teeth are avoided, and the requirements of sealing components on machining and mounting precision are lowered.

A computer based printing system, comprised of one or more print drivers, a spooler, print processor, two or more printing devices and optionally one or more print servers. The system results in reducing uneven distribution of load across printers for document splitting in a cluster printing environment, by weighting each page for the approximate proportional load required for the respective printer(s) to PDL interpretation / RIP. The system has the advantage of not requiring additional hardware, firmware, or server side software, by having the load calculated, splitting and distribution in the client side print subsystem. The method of the invention includes a method of distributing a print job having plural pages to plural printers, wherein each printer has a printer description language interface, selecting a cluster printing option and the printers to be used during distributed printing; analyzing the print job to estimate print times for each page of the print job; assigning a print job weight to each page as a function of the page's proportional page description language / raster image process time; and balancing a page distribution to each selected printer as a function of a printer's rated speed to have the distributed print job substantially simultaneously complete on each selected printer.

A method for driving a liquid crystal display device that decreases a sticking of the display image. The liquid crystal display device includes a pixel electrode and a counter electrode. A polarity of the signal supplied to the pixel electrode is periodically inverted at the first period and the second period. The length of the first period is different from that of the second period.

The invention relates to an electrolyte membrane and application of a composite membrane thereof in a liquid-flow energy storage battery with acidic electrolyte. The electrolyte membrane uses polybenzimidazole or other aromatic heterocyclic polymers as a base membrane or is doped with a strong-acidity solution through composite techniques comprising an organic / inorganic technique, an organic / organic technique, a blending technique, a crosslinking technique, a strengthening technique and the like so that the acid content, the proton conductivity and the mechanical strength of the composite membrane are improved. Different from the traditional electrolyte membrane containing functional groups, the novel electrolyte membrane does not contain iron conduction groups, but utilizes acid in the electrolyte as the electrolyte to conduct protons. Due to the adoption of a Hopping conduction mechanism, the membrane reduces the iron permeation and the water migration of the liquid-flow energy storage battery, greatly reduces the crossing of anode and cathode electrolyte and prolongs the service life of the electrolyte. The preparation process is simple, and the prepared electrolyte membrane can effectively satisfy the requirements on the performance and the stability of the liquid-flow energy storage battery.

Provided is a low cost sample analysis chip wherein liquid is fed to wells formed on the chip so as to carry out reaction by simple liquid feed method while preventing variation in the quantity of liquid among respective wells. A sample analysis chip has a plurality of wells (102) and channels leading to respective wells, wherein the channels includes a main channel (103) which feeds liquid to each well, and the sample analysis chip is characterized in that the main channel is provided closer to the rotation center side than the well, and is formed to have one peak between adjoining wells in the direction of rotation center.

The invention discloses fiber aerogel foam concrete, a preparation method and application thereof. The fiber aerogel foam concrete disclosed by the invention comprises the following raw materials: binding materials, aerogel powder, cellosilk, viscous water, a foaming agent and water, wherein the mass ratio of the binding materials to aerogel powder to cellosilk to viscous water is 1: (0.01-0.3):(0.001-0.01):(0.35-1); the particle size of the aerogel powder is smaller than 250 microns, the porosity is 80-99%, and the pore diameter is 10-50nm; the cellosilk is uniformly distributed, and the diameter is 10-50 microns. The fiber aerogel foam concrete disclosed by the invention has the advantages of ultralow density, ultralow heat conductivity and excellent thermal insulation, can be applied tothe fields of thermal insulation of building walls, road filling, barrier sound insulation, and has wide application prospect.

A light emitting element having; a first and a second conductivity type semiconductor layers, a first and a second electrodes formed on the first and second conductivity type semiconductor layer, the first and the second electrodes being disposed on the same face side of the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, in plan view, the first electrode having a first connecting portion, a first extending portion, and two second extending portions, the second electrode having a second connecting portion and two third extending portions, the first extending portion of the first electrode extending linearly from the first connecting portion toward the second connecting portion, and the two second extending portions extending parallel to the first extending portion on two sides of the first extending portion, the two third extending portions of the second electrode extending parallel to the first extending portion between the first extending portion and the two second extending portions.

The invention relates to the technical field of lighting equipment, in particular to an LED spotlight with an adjustable lighting effect. The LED spotlight comprises a supporting frame, an LED light source and a secondary optical part, wherein the LED light source is a multi-color-temperature light source, and is arranged on the supporting frame; the secondary optical part is positioned in the light emitting direction of the LED light source, and is arranged on the supporting frame; the secondary optical part comprises a lens assembly and a focusing device used for adjusting the distance between lenses in the lens assembly; and the lens assembly comprises a collimating lens and a Fresnel lens, which are arranged in sequence in the light emitting direction. The LED spotlight with the adjustable lighting effect, provided by the invention, can be applied to occasions with different color temperature and brightness requirements, and has a better lighting effect.

Beading caused by interferences between block patterns, which are driving patterns of two nozzle arrays at the time of printing with the use of the two nozzle arrays for the same color, and a mask is reduced. Specifically, when the mask is created, repulsive potentials are calculated between the mask and planes with the block patterns. That is, when a placement of a print permitting area in the mask is determined, the repulsive potentials are calculated between the mask and dots in the planes with the block patterns, and then the print permitting area is placed on the most dispersive position with the lowest energy. This allows the print permitting areas to be well dispersed in terms of the overlaps between the block patterns and the mask.

A pressure container 1 composed of a reinforcing layer 2 and a liner layer 3, with a hydrogen charging pressure of 30 MPa or higher; and a hydrogen absorbing material and a carrier for holding said hydrogen absorbing material (hydrogen absorbing material portion 4) contained in the pressure container 1 are included, and a volume fraction X of the hydrogen absorbing material with αm≧100 kg / m3 with respect to an internal volume of the pressure container 1 is 5(%)≦X≦20(%), where αm denotes a maximum hydrogen absorption amount per unit volume of the hydrogen absorbing material (kg / m3); X=100 ·Vm / Vi (%); Vi is an internal volume of the pressure container (L); and Vm is a volume of the hydrogen absorbing material in the pressure container (L).

The invention relates to high-intensity and super-sulphur ardealite slag cement concrete and a preparation method thereof. The high-intensity and super-sulphur ardealite slag cement concrete is prepared by the following method with the steps of (1) ardealite ball milling pretreatment: putting ardealite, fly ash, cement, water reducing agents and water into a ball milling tank to perform wet milling; then performing sieving and aging treatment to obtain ardealite slurry; (2) high-intensity and super-sulphur ardealite slag cement concrete preparation: adding sand, stone coarse aggregates and water into a concrete stirring machine for stirring; after the uniform mixing, adding fine aggregate cement and mineral powder into the concrete stirring machine for continuous stirring; after the uniform stirring, slowly adding the ardealite slurry; finally adding water and water reducing agents; after the sufficient stirring, performing concrete shaping and maintenance, thus obtaining the high-intensity and super-sulphur ardealite slag cement concrete. The high-intensity and super-sulphur ardealite slag cement concrete provided by the invention has the advantages of high intensity, short setting time, good volume stability and difficult cracking.

A pressure container 1 composed of a reinforcing layer 2 and a liner layer 3, with a hydrogen charging pressure of 30 MPa or higher; and a hydrogen absorbing material and a carrier for holding said hydrogen absorbing material (hydrogen absorbing material portion 4) contained in the pressure container 1 are included, and a volume fraction X of the hydrogen absorbing material with αm≧100 kg / m3 with respect to an internal volume of the pressure container 1 is 5(%)≦X≦20(%), where am denotes a maximum hydrogen absorption amount per unit volume of the hydrogen absorbing material (kg / m3); X=100 ·Vm / Vi (%); Vi is an internal volume of the pressure container (L); and Vm is a volume of the hydrogen absorbing material in the pressure container (L).

The invention discloses a dispenser, which comprises a shell, a side plate enclosing the shell, a distribution port penetrating the side plate and used for connecting a capillary tube, and a refrigerant pipe communicated with the shell, wherein the diameter of the distribution port is greater than that of the capillary tube, and a reducer pipe is arranged between the distribution port and the capillary tube. A baffle with a through hole is arranged in a cavity, and the baffle disperses a refrigerant while buffering a refrigerant stream in order to realize uniform distribution of the refrigerant. Meanwhile, the diameter of the distribution port is increased, and the reducer pipe is arranged between the distribution port and the capillary tube, so the welding difficulty is reduced, pipe deformation or leakage caused by welding is prevented; meanwhile, by the large-diameter distribution port, the non-uniform distribution of the refrigerant nearby the distribution port is further reduced, so the distribution of the refrigerant inside the capillary tube is improved. The purpose of distributing liquid uniformly is really achieved, so capillary tubes are balanced; moreover, by the structure, the noise is reduced, and the user satisfaction degree is increased.

Methods and systems are provided for treatment of an exhaust stream, comprising nitrogen oxides. The method comprises a first oxidation of compounds comprising one or more of nitrogen, carbon and hydrogen in the exhaust stream; and a control of a first supply of a first additive to the exhaust stream to prevent an accumulation of soot exceeding a soot threshold value in a catalytic filter. This soot threshold value depends at least on operating conditions for the combustion engine, which impact a level of a flow for the exhaust stream. A first reduction of nitrogen oxides is performed using reduction characteristics of a catalytic coating in the catalytic filter and the supplied first additive. Soot particles are caught and oxidized. A control of a second supply of a second additive is performed, following which a second reduction of nitrogen oxides is performed using the first and / or the second additive in a reduction catalyst device.

The present invention discloses a liquid ejecting device that ejects a maximum of N liquid droplets so as to land on each pixel area to form a pixel corresponding to the pixel area, from among M liquid candidate drop positions that form an array along the nozzle arrangement direction Randomly select the target drop position of each droplet, determine the target drop position so that at least a part of the drop drop area corresponding to each candidate drop position is included in the pixel area, and control the ejection direction of the droplet so that the droplet falls at the determined target drop position. A liquid ejecting device having such a structure has an advantage of preventing streaks from being generated between dot matrixes of a printed image due to irregularities in the arrangement of the ejecting portions.

The invention relates to an autoclave molding method and an autoclave molding apparatus. The composite material formed of a fiber substrate and a matrix is placed in a vacuum bag and then in the molding chamber. Saturated steam of a predetermined temperature needed for the composite material is supplied to the molding chamber, and the temperature and the pressure inside the molding chamber are controlled so that the inside of the molding chamber may be maintained at a predetermined temperature and a predetermined pressure needed for the composite material in order to carry out a curing step.

A light emitting element includes a first conductivity-type semiconductor layer, a first electrode, a second conductivity-type semiconductor layer and a second electrode. The second conductivity-type semiconductor layer has a square peripheral shape. The first electrode includes a first connecting portion on a first diagonal line and a first extending portion extending from the first connecting portion onto the first diagonal line. The second electrode includes a second connecting portion on the first diagonal line facing the first connecting portion via the first extending portion. Two second extending portions extend from the second connecting portion and having a first portion and a second portion respectively. The first connecting portion includes an end portion closer to the second connecting portion than a straight line intersecting the tip ends of the two second extending portions, and a center portion at a side father from the second connecting portion than the second diagonal line.

A light emitting element includes a first conductivity-type semiconductor layer, a first electrode, a second conductivity-type semiconductor layer and a second electrode. The second conductivity-type semiconductor layer has a square peripheral shape. The first electrode includes a first connecting portion on a first diagonal line and a first extending portion extending from the first connecting portion onto the first diagonal line. The second electrode includes a second connecting portion on the first diagonal line facing the first connecting portion via the first extending portion. Two second extending portions extend from the second connecting portion and having a first portion and a second portion respectively. The first connecting portion includes an end portion closer to the second connecting portion than a straight line intersecting the tip ends of the two second extending portions, and a center portion at a side father from the second connecting portion than the second diagonal line.

A light emitting element having; a first and a second conductivity type semiconductor layers, a first and a second electrodes formed on the first and second conductivity type semiconductor layer, the first and the second electrodes being disposed on the same face side of the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, in plan view, the first electrode having a first connecting portion, a first extending portion, and two second extending portions, the second electrode having a second connecting portion and two third extending portions, the first extending portion of the first electrode extending linearly from the first connecting portion toward the second connecting portion, and the two second extending portions extending parallel to the first extending portion on two sides of the first extending portion, the two third extending portions of the second electrode extending parallel to the first extending portion between the first extending portion and the two second extending portions.

Beading caused by interferences between block patterns, which are driving patterns of two nozzle arrays at the time of printing with the use of the two nozzle arrays for the same color, and a mask is reduced. Specifically, when the mask is created, repulsive potentials are calculated between the mask and planes with the block patterns. That is, when a placement of a print permitting area in the mask is determined, the repulsive potentials are calculated between the mask and dots in the planes with the block patterns, and then the print permitting area is placed on the most dispersive position with the lowest energy. This allows the print permitting areas to be well dispersed in terms of the overlaps between the block patterns and the mask.

A method and an exhaust treatment system are provided for treatment of an exhaust stream comprising nitrogen oxides. The method comprises a first oxidation of compounds comprising one or more of nitrogen, carbon and hydrogen in the exhaust stream; a determination of a value for a ratio between a first amount of nitrogen dioxide and a first amount of nitrogen oxides after the first oxidation; and a first supply of a first additive into the exhaust stream, which is actively controlled based on the determined value for the ratio. Subsequently, a first reduction of at least the first amount of nitrogen oxides is carried out through a catalytic reaction in a catalytic filter, which consists of a particulate filter with an at least partly catalytic coating with reduction characteristics, and is arranged to catch and oxidize soot particles, and to carry out the first reduction of the first amount of nitrogen oxides.

A fluidized bed burning device for compositely providing secondary air by wall surface-center is provided, which relates to a burning device. The invention solves the problems as bad air supply effect, weak penetrating capacity of secondary air and bad operating performance when the materials are reversed into the secondary air transferring pipe at center of boiler of the existing fluidized bed burning device. The plurality of down-inclined secondary air pipes (5) are positioned on a side wall (2) of a fluidized bed firebox (3); the reversed secondary air post (4) is arranged at the central area in the fluidized bed firebox (3); a reversed pos head (9) is provided with a secondary air spraying port (11) on side wall; upper end of a secondary air transferring pipe (8) passes through the lower end surface of the reversed post head (9), which is mounted in the reversed post head (9) and is fixed and connected with the reversed post head (9). The invention supplies the air needed for burning at the central area of the boiler furnace and promotes the sufficient mixing and reaction of solid-gas two-phase in the furnace and realizes higher burning efficiency.

Provided are a method and a system for treatment of an exhaust stream, from a combustion engine comprising nitrogen oxides. An estimate of at least one future operating condition for the exhaust treatment system is determined based on a road section ahead of the vehicle. A first additive is input into the exhaust stream to cause a first reduction of nitrogen oxides in a first reduction catalyst device. A second additive is input into the exhaust stream to cause a second reduction of a second amount of nitrogen oxides in a second reduction catalyst device, arranged downstream of the first reduction catalyst device. The first supply of additive is controlled based on the estimated at least one future operating condition, such that the first reduction catalyst device is exposed, over time, to a substoichiometric condition, with respect to the first additive and the first amount of nitrogen oxides.

The invention discloses a low-smoke halogen-free and flame-retardant polyolefin cable material with high cracking resistance. The invention belongs to the technical field of cable materials, and solves the problem that when a cable wire is subjected to coiling, the cable material possibly cracks at a bent position. The cable material is prepared by the following method of: firstly, mixing 65-75 parts by weight of an ethylene-vinyl acetate copolymer, 25-35 parts of high density polyethylene, 10-18 parts of magnesium hydroxide, 20-40 parts of aluminum hydroxide, 0.05-0.25 part of melamine urate,5-11 parts of red phosphorus, 10-20 parts of a hyperdispersant, 2-5 parts of an antioxidant, 15-21 parts of silicon dioxide, 9-15 parts of silicon resin, 5-11 parts of zinc hydroxystannate, 1.25-1.75parts of sorbitol, and 0.5-1.5 parts of sodium alginate evenly, conducting internal mixing at 130-140DEG C for 10-15min, and carrying out extrusion granulation at 115-140DEG C, thereby achieving theeffects of enabling the cable material to have favorable smoke suppression and flame retardancy and high mechanical properties.

A red nitride phosphor of formula (I) or (II), and two green phosphors of formulas (III) and / or (IV) are included.MwAlxSiyBzN((2 / 3)w+x+(4 / 3)y+z):Eu2+  (I)M is any of Mg, Ca, Sr and Ba, and 0.5≦w≦3, x=1, 0.5≦y≦3 and 0≦z≦0.5,MpSiqN((2 / 3)p+(4 / 3)q):EU2+  (II)1.5≦p≦2.5 and 4.5≦q≦5.5,MxMgSizOaXb:Eu2+  (III)M is any of Ca, Sr, Ba, Zn and Mn, X is any of F, Cl, Br and I, and 6.5≦x<8.0, 3.7≦z≦4.3, a=x+1+2z−b / 2 and 1.0≦b≦1.9,SicAldOfNg:Eu2+  (IV)c+d=6, 5.0≦c<6, 0<d≦1.0, 0.001<f≦1, 7≦g<8.

The invention discloses a method and a system for authorizing service of wireless fidelity direct (Wi-Fi Direct) terminal equipment, and relevant equipment. By the method, the system and the relevant equipment, the phenomena of nonuniform distribution of service equipment and service congestion can be effectively reduced. The method comprises the following steps that: service applying equipment and service authorizing equipment configure an authorization code in advance; the service applying equipment transmits a service authorization request which comprises an authorization code to the service authorizing equipment which is scanned by the service applying equipment, wherein the authorization code comprises a service type; and the service authorizing equipment matches the authorization code in the service authorization request with the authorization code which is configured in advance, and when the two authorization codes are matched with each other, corresponding service is provided according to the service type of the authorization code. The system comprises the service applying equipment and the service authorizing equipment.

The invention relates to a method for preparing trichlorosilane from tetrachlorosilane, belonging to the field of polysilicon production. The invention solves the technical problem of providing a method for preparing trichlorosilane from tetrachlorosilane with higher conversion rate. The method comprises the following step: introducing tetrachlorosilane and hydrogen with the molar ratio of 0.15-0.4:1 into a hydrogenation furnace with the pressure of 0.3-0.6Mpa for reaction. The method of the invention improves the conversion rate of the tetrachlorosilane (the conversion rate is improved to about 32%) and the conversion quantity in the same time, solves the problems of accumulation of a large amount of by-product tetrachlorosilane in the production process of polysilicon and environmental protection, has better economic benefit and wide application prospects, and provides a new choice for the processing method of tetrachlorosilane in the field.

The invention discloses a method for preparing artificial quartz stones by using kaolin desliming tailings, which relates to building decoration materials and comprises the following steps of: stirring unsaturated resin and colorants, adding the kaolin desliming tailings, natural river sand and silicon dioxide powder, performing stirring, adding an accelerator, a coupling agent and a curing agent, performing stirring and injecting the mixture into a mould; feeding the mould into a vacuum box for vacuumizing, pressing and forming the mixture and performing curing and heating; and performing cooling de-molding to remove the mould, performing polishing and finally cutting the molded mixture into standard artificial quartz stone slabs, wherein artificial quartz stones are made from the following raw materials in percentage by mass: 12 to 65 percent of natural river sand of 10 to 120 meshes, 15 to 35 percent of natural river sand of larger than 120 to 1,500 meshes, 5 to 15 percent of silicon dioxide powder, 0.1 to 19 percent of unsaturated resin, 0.1 to 5 percent of accelerator, 0.1 to 3 percent of coupling agent, 0.1 to 5 percent of curing agent and 0 to 5 percent of colorant. The method reduces initial investment, and is convenient to operate, easy to implement, simple and reasonable; and the products have the natural veins, stripes and rich colors of marbles, also have the hardness of the quartz stones and are suitable for industrialization.