3643results about How to "Meet the design requirements" patented technology

The invention embodiment provides a shift register unit, a grid electrode drive circuit and a driving method thereof, and an array substrate, and relates to the display technical field, thus solving the problems that a high resolution display panel cannot satisfy ultra-narrow frame or non-frame design requirements. The shift register unit comprises a first input module connected with a first voltage end and a first signal input end; a first reset module connected with a second voltage end and a first reset signal end; a pull-up module connected with a first clock signal end, a first output module, a second output module and a third signal output end; a pull-down control module connected with a second clock signal end and a third voltage end; a pull-down module connected with a third voltage end and the pull-up module; a first output module connected with the pull-up module, a third clock signal end and a first signal output end; a second output module connected with the pull-up module, a fourth clock signal end, and a second signal output end. The shift register unit is applied to display manufacture.

The invention provides an embedded LED airport boundary lamp which comprises a lamp, an outer cover, an LED lamp panel, a lens module and a radiating plate. The lamp comprises a cylindrical body and an annular wing; the outer cover comprises a waterproof mounting portion and a light transmittance portion; the LED lamp panel comprises a base panel and a plurality of LED lamp beads fixed onto the base panel; the lens module is positioned above the LED lamp panel and comprises a lens fixing plate and a plurality of lenses, the lenses correspond to the LED lamp beads on the LED lamp panel, the LED lamp beads are embedded into the corresponding lenses, and the outer surface of each lens in the design is provided with double free-form surfaces; the lens module and the LED lamp panel are sequentially fixed to the radiating plate from top to bottom, the radiating plate is upwardly fixed to the bottom of the outer cover, the lens module and the LED lamp panel are positioned in an inner space of the hollow boss-shaped light transmittance portion of the outer cover, and the outer cover is downwardly fixed to the lamp. The embedded LED airport boundary lamp has the advantage that the height of a ground protruded part of the LED airport boundary lamp can be greatly reduced.

The invention discloses a steel truss bridge and a method for fabricating the same. The steel truss bridge comprises a steel box girder bridge deck, a main truss composed of two steel trusses, and a steel portal frame. The steel truss comprises an upper chord member, a lower chord member, and a web member which is connected with the upper chord member and the lower chord member through bolts. A sidewalk bracket is arranged outside each steel truss. The lower chord member is connected to the steel box girder bridge deck and the sidewalk bracket, respectively. Besides, the two steel trusses are connected through the steel portal frame. During fabrication, all the sections of the steel trusses, the steel portal frame and the bridge deck are independently fabricated, respectively; all the sections of the upper and lower chord members of the steel truss are pre-assembled circularly with the corresponding web members, and all the sections of the steel box girder bridge deck are pre-assembled with the corresponding lower chord members by an orthotectonic method, respectively; and the steel portal frame is pre-assembled with the steel trusses. The steel truss bridge disclosed by the invention completely meets the design requirements so that the stability and safety factor of the bridge can be enhanced; and by employing the fabricating method, positioning is accurate so that the risks during the field assembling can be reduced; and the construction period can be shortened.

The invention relates to preparation method and application method of a grape special fertilizer, wherein the preparation method comprises the following steps: preparing an I-type fertilizer by taking the following ingredients in parts by weight: 30-40 parts of urea, 20-30 parts ammonium phosphate, 15-30 parts of potassium sulphate, 1-3 parts of humic acid, 1-3 parts of excrement, 1-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; preparing an II-type fertilizer by taking the following ingredients in parts by weight: 7-15 parts of urea, 25-35 parts ammonium phosphate, 35-45 parts of potassium sulphate, 1-3 parts of humic acid, 1-5 parts of excrement, 2-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; and blending, spraying, pelleting and drying at lower temperature to obtain the product. The application method of the fertilizer comprises the following steps: taking an organic fertilizer and the II-type fertilizer as a base fertilizer; applying the I-type fertilizer before blossom, applying the II-type fertilizer in the young fruit development period, and meanwhile, respectively spraying monopotassium phosphate and rare earth mixed liquid once on the leaf surfaces; and spraying calcium nitrate or calcium acetate to enhance the storage resistance property before picking.

This invention relates to one safety index engine system based on visit control, which comprises database servo, single load module, user information description module, scramble device module, inquire index module and index database, wherein, the system can describe user information according to materials degree; the scramble device gets the materials right and collects the safety control materials content; feeding back safety degree with visit material list according to user inquire key word; due to different rights on different websites, index engine gets user identity information according to the information without load operation in visiting materials.

The invention relates to a human body measurement method, in particular to the non-contact human body measurement method for clothing design which belongs to the technical field of clothing design. The digital images of the front surface and the side surface of the human body are firstly obtained; the extraction of the image edges are carried out by adopting the color segmentation, the best threshold segmentation, the hole filling, the opening operation and the pixel communication image processing method, thereby obtaining the image edges of the front surface and the side surface of the human body; the human body measurement feature points and the lines are determined, the corresponding height and width measurement data of the human body for the clothing design are obtained by calculation; a mathematical model is established by applying the width and the thickness data of the human body to obtain the related circumference data, and the human body circumference measurement data for the clothing design is obtained by BP neural network simulation and regression prediction treatment. The method has simple device, convenient operation and low measurement cost, thereby being capable of meeting the requirements on the design and the production of the clothing industry and having broad popularization and application prospects.

Disclosed is a sliding mechanism apparatus used for slidably opening and closing a slider-type cellular phone. A guide member and a slider member are engaged with each other so as to enable to slide relative to each other. The end of one arm of a first torsion spring is connected to the slider member near the left edge thereof. The end of the other arm thereof is coupled to the right half area of the guide member. The end of one arm of a second torsion spring is connected to the slider member near the right edge thereof. The end of the other arm thereof is coupled to the left half area of the guide member. From the expanded original state of the first and second torsion springs, if an external force is exerted on the slider member or the guide member, the torsion springs are compressed into an acute angle and then spread again by means of the elastic force thereof. In this way, the slider member can move to the lowermost position or the lowermost position. In the first and second torsion springs, the distance between the ends of two arms is larger than at least half of the width of the slider member. Therefore, the first and second torsion springs can maximally utilize the width of the guide member while turning, thereby extending the maximum travel distance of the slider member.

The invention relates to a design method for the formation configuration of distributed satellites with synthetic aperture radars (SAR). The method comprises the following five operation steps: step 1: designing the formation configuration of the distributed satellites and conforming fly-by path equations; step 2: confirming an optimal base line length range of the distributed satellites in start time; step 3: confirming an optimal base line sequence of the distributed satellites in start time; step 4: confirming track parameters of the formed satellites forming a concentric circle configuration; and step 5: calculating effective base lines and vertical path base lines in a track period. The invention provides the concentric circle formation configuration, uses the optimal base line combined constraint conditions of multi-base line interference SARs as design input parameters and designs a control law of radar antenna visual angles to realize that a distributed satellite SAR system can satisfy the design requirements of the optimal base line combined constraint conditions in any time in a track operation period and a basis is provided for the distributed satellite SAR system to obtain high-precision DEM products by a multi-base line interference SAR treatment method.

The invention discloses a control device used for a centralized air processing system, which comprises a plurality of frequency converters, a plurality of actuators, a plurality of sensors, and a controller, wherein the frequency converters are connected with a plurality of fans respectively, and used for controlling rotation frequencies of the corresponding fans to adjust the generated air volume; the actuators are connected with a plurality of air valves and a water valve of a surface air cooler respectively, and used for controlling the air valves and the water valve to accomplish adjustment on the conveying or discharge air volume; the sensors are arranged on a plurality of air pipes and a freezing water pipe of the surface air cooler respectively, and used for collecting a temperature and a concentration of indoor CO2; and the controller is used for processing sensor data, generating a signal to control the frequency converters and the actuators to adjust the fans, the air valves and the water valve, accomplishing coordination among air supply, air return, fresh air and air discharge, and achieving indoor air treatment. The control device utilizes humiture and CO2 concentration measurement signals and adopts an integral control mode to accomplish temperature control of an air conditioning system and indoor hot comfort control, and the anti-interference capability and an energy-saving effect are improved.

The invention relates to the technical field of architectural design and construction, in particular to a BIM-based holographic imaging full-decoration simulation display method and display system. A three-dimensional information model of a building and an internal partition wall parameter family are built by BIM modeling software; interior structures are designed by adjusting partition wall family parameters and the partition wall position; and the diversity of the interior structures and individualized design of decorating schemes are achieved. The effect of selection and modification by residents can be displayed by a three-dimensional real image projected through a holographic imaging technology; a user can intuitively experience the difference of the decorating schemes; and through rendering animation, the user can carry out live-action experience on each detail of the decorating scheme in the projected three-dimensional animation scene, and can intuitively determine the decorating schemes without visiting model houses. Auxiliary acceptance is carried out through a three-dimensional scheme map and an animated image; and the display method and the display system help the user who does not know the decoration carry out comparison acceptance and ensure that the decoration reaches design requirements of the user.

The invention provides a welding tool for a four-way valve of an air conditioner, and can solve the problems in the prior art that the four-way valve tube bank can not be positioned in the welding process and nitrogen filling protection can not be realized. The invention adopts the technical proposal that the four-way valve welding tool for the air conditioner comprises a water tank, a four-way valve welding device is arranged in the water tank, is used for positioning the four-way valve when being welded with the associated pipe, and comprises a fixing plate, V-shaped iron for positioning the four-way valve and a long groove for the tubule of the four-way valve to penetrate are arranged on the fixing plate, and a V-shaped groove A for positioning the pilot valve on the four-way valve is arranged on one side of the long groove. The four-way valve welding tool has the advantages that the four-way valve tube bank can be positioned accurately, nitrogen filling protection is always provided to the tube bank in the welding process, the welding efficiency and the welding quality of the air conditioner product line can be enhanced, and the performance of the entire air conditioner can be improved, so as to lead the product to be more competitive.

The invention relates to a vacuum electronic beam welding method for a titanium-alloy rotor component. Five welding seams of a rotor of a gas compressor are welded by an electronic beam welding process. The vacuum electronic beam welding method has the advantages that reasonable welding sequence and welding parameters are adopted for controlling the welding deformation and the quality of the welding seams, the technical difficulties of poor whole rigidity, larger welding amount and difficult control for welding deformation and the like of a product are overcome, the quality of the welding seams is ensured, and the design requirement is met.

The invention discloses a vacuum brazing technology method between copper and stainless steel dissimilar metal water connector, comprising processing each part of the water connectior, controling the processing precision and component assembly clearance; washing the part of water connectior; assembling water connections and putting in special fixture. Put the fixture in vacuum brazing furnace and carry out braze welding according to the following brazing technology: 1) take 35 minutes to make the furnace temperature to rise to 650 DEG C at a uniform speed; 2) continue to preserve heat for 20 minutes; 3) rise the furnace temperature at a uniform speed to 890 DEG C in 20minutes; 4) continue to preserve the heat for 20 minutes; 5) then rise the furnace temperature to 970 DEG C+-10 DEG C at a uniform speed in 15 minutes; 6) Continue to preserve heat for 5 minutes; 7) then stop heating and cool naturally; 8) on the next day take out the water connector from the fixture; 9) carry out the acceptance test by using the ultrasonic automatic testing device. The technical problem that the annular gap of the water connector is not fully filled and can be corroded is solved; the invention has the advantages of reliable method and high production efficiency, and can effectively improve the qualified rate of the products.

The invention discloses a heat-resisting steel material used as a vane or a bolt of a steam turbine. The chemical composition of the material (in percentage by weight) is: 0.08 to 0.13 percent of C, 0.35 to 0.65 percent of Mn, 0.30 to 0.70 percent of Ni, 10.0 to 12.0 percent of Cr, 0.10 to 0.4 percent of Mo, 2.5 to 3.5 percent of Co, 2.4 to 3.0 percent of W, 0.15 to 0.25 percent of V, 0.05 to 0.12 percent of Nb, 0.01 to 0.035 percent of N, 0.01 to 0.04 percent of B, and the balance of Fe and impurities. The mechanical property of the heat-resisting steel material is that: in a room temperature tensile test, tensile strength sigma b is more than or equal to 965N/mm<2>; yield strength sigma 0.02 is more than or equal to 689N/mm<2>; tensile stretch delta is more than or equal to 15 percent; percentage of area reduction psi is more than or equal to 45 percent; ballistic work AKv is more than or equal to 10.7J; and hardness HB is less than or equal to 321; in a condition of a high temperature lasting test, temperature is at 660 DEG C, stress is 245N/mm<2>, and crack time T is more than or equal to 100 hours.

The invention relates to a display screen unit bracket which comprises a frame, an elastic connector, a supporting platform and an adjusting element, wherein the elastic connector is of long and narrow shape; one end of the elastic connector is connected with the frame; the supporting platform is connected with the other end of the elastic connector; one end of the adjusting element is rotatably connected with the frame while the other end is rotatably connected with the supporting platform; a distance between the frame and the supporting platform is adjusted by the adjusting element, so as to bend the elastic connector; when the elastic connector is bent, a lamp strip component is bent following the elastic connector because the lamp strip component is arranged on the elastic connector, and a certain radian is formed by the lamp strip component; the certain radian is formed by the lamp strip component by adjusting the length of the adjusting element; and display screens of display screen boxes in different shapes can be formed by connecting a plurality of lamp strip components with certain radians in different modes. The invention also provides a display screen unit and a display screen box containing the display screen unit.

The invention discloses a multiple-working-condition hydraulic design method for a guide vane type centrifugal pump. The multiple-working-condition hydraulic design method for the guide vane type centrifugal pump mainly comprises the following steps that specific speed solution is conducted on the design working conditions of the guide vane type centrifugal pump, and the design working condition with the specific speed as an intermediate specific speed is selected and designed; multiple-scheme design is conducted on an impeller and guide vanes through an experiment design method, and the CFturbo style is adopted; mesh generation is conducted on a model, numerical simulation is conducted on a scheme through CFX, the lift and the efficiency value are read, and function fitting is conducted between the lift and a flow; function fitting is conducted between the lift and the flow of a design parameter point, the coefficient of a fitting function is used as a design goal, input main geometrical parameters are used as input values, an approximate response model is established through the Kriging model, rapid computation is conducted on the approximate response model through a multiple-target genetic algorithm, and then the optimal value is obtained. By the adoption of the multiple-working-condition hydraulic design method for the guide vane type centrifugal pump, the requirement for multiple-working-condition hydraulic design of the guide vane type centrifugal pump can be met; the multiple-working-condition hydraulic design method for the guide vane type centrifugal pump can also be used for multiple-working-condition hydraulic design of other guide vane type centrifugal pumps.

The invention relates to a spatio-temporal dynamic analysis method of soil erosion in meso-scale watershed based on GIS. The spatio-temporal dynamic analysis method comprises following specific steps: the meso-scale watershed is divided into a plurality of grid cells as calculation units; soil erosion experiments are used for measuring research results and knowledge, and a plurality of factors related to soil erosion are extracted based on soil erosion experiment observation data; the plurality of factors are subjected to analysis and summary, an erosion factor collective drawing is established, and estimation on soil erosion amount of each grid cell is finished; and evaluation and analysis on watershed soil erosion states are finished based on soil erosion space variation analysis. According to the spatio-temporal dynamic analysis method, space nonuniformity of soil erosion and the factors of soil erosion is taken into consideration, so that a slope surface model is combined with GIS, and calculation on each unit is finished; and substance transmission and migration are taken into consideration appropriately, distribution calculation on soil loss is finished, and a soil erosion figure is obtained.

The invention discloses a method for installing a nuclear power half-speed steam turbine. The method comprises the steps of I, foundation inspection and secondary embedded installation; II, assembly and installation of a low-pressure cylinder; III, assembly and installation of a high and middle-pressure cylinder; IV, axis alignment and connection installation. The assembly and installation of a high and middle-pressure cylinder comprise the steps of (1), overhaul and installation of a thrust bearing; (2) measurement and regulation of a middle gland casing; (3) load distribution of the high and middle-pressure cylinder. The method has the advantages that load measurement is performed on a claw of the high and middle-pressure cylinder through a hydraulic jacking method, the method is simple in operation and high in measurement accuracy, jacking oil is injected during axis alignment, and accuracy of axis alignment is ensured.

The invention discloses a small-caliber non-spherical permanent magnet magnetorheological polishing processing machine tool, which belongs to the technical field of grinding-polishing processing, and is used for solving the problem that the shape and size accuracy requirements of a processed part cannot be met since each position of a small-caliber non-spherical curved surface to be processed cannot be contacted during processing of workpieces with the conventional polishing processing equipment. A workbench is arranged on an X axis linear unit of an XY precision movable platform; an organ protection cover is arranged between the edge of the workbench and a cover plate; a workpiece main shaft is arranged on the workbench through a workpiece main shaft bracket; a Z axis linear unit is arranged on a portal frame; a revolving table is arranged on the Z axis linear unit through a right-angle connecting frame; the shaft end of a rotating shaft in the revolving table is connected with a polishing head main shaft bracket through a two-dimensional precision fine adjustment displacement table; and the polishing head main shaft bracket has a certain inclination angle, so that an included angle between a polishing head main shaft on the polishing head main shaft bracket and a horizontal plane is 40-45 degrees. The machine tool is suitable for ultra-precision polishing processing of high-accuracy small-caliber non-spherical parts.

The invention relates to preparation and application of dry-mixed mortar for plate-type ballastless track self-compacting concrete. The dry-mixed mortar is prepared by mixing cement, a mineral additive, fine aggregate, a water-reducing and collapse-preventing component, an expanding component, a viscosity adjusting component and fiber according to a certain ratio, wherein 100 parts of cement, 50-120 parts of the mineral additive, 150-400 parts of the fine aggregate, 0.2-3 parts of the water-reducing and collapse-preventing component, 5-20 parts of the expanding component, 1-10 parts of the viscosity adjusting component and 0-0.5 part of the fiber are included. The invention further provides preparation and application of the dry-mixed mortar. The dry-mixed mortar is prepared by a high-speed mixer in a factory; the dry-mixed mortar is transported by a bulk truck or by an automobile in a bagged way; the dry-mixed mortar, coarse aggregate and water are weighed on a construction site in parts by weight and uniformly stirred for use. According to the technical scheme, the sensitivity of the self-compacting concrete to quality fluctuation of the raw materials can be greatly reduced and the loss of the self-compacting concrete can be significantly reduced; the dry-mixed mortar is suitable for a plate-type ballastless track of a high-speed railway, and can also be applied to bridges, civil buildings and the repairing and strengthening field.

The invention relates to an esterified polyurethane resin for wet-method synthetic leather, in particular to the polyester high-hydrolysis resistance and high-peeling strength polyurethane resin for the single-component wet-method synthetic leather and a preparation method thereof. The polyurethane resin is prepared from the following components in weight percentage: 2%-15% of isocyanate, 20%-30% of polyester polyol compound, 0%-5% of dihydric alcohol chain extender, 0.01%-0.5% of catalyst, 0.01%-0.5% of additive and 50%-80% of water-soluble organic solvent. The high-hydrolysis resistance and high-peeling strength polyurethane resin by a wet method completely solves the defects of the impregnated resin for the wed-method hydrolysis resistance synthetic leather such as poor film-forming properties, slow impregnation speed, low peeling strength and the like, and meanwhile the hydrolysis resistance thereof can also meet the requirements of the hydrolysis resistance synthetic leather.