157results about How to "Split evenly" patented technology

A device for measuring the mass of a medium flowing in a line, especially the aspirated air mass on an internal combustion engine, comprising a flow tube, which is disposed in the line. A measuring element around which the flowing medium flows is disposed in the flow tube. The medium flows from the line into the flow tube at an inlet opening and out of the flow tube into the line at an outlet opening. An outlet end face of the flow tube surrounding the outlet opening has structural grooves, which extend with a radial directional component with respect to a longitudinal axis of the flow tube.

The invention relates to a saloon car tyre surface and specially, relates to patterns of the saloon car tyre surface. The saloon car tyre surface comprises a centre pattern block, side pattern blocks and shoulder pattern blocks. The side pattern blocks and the shoulder pattern blocks are orderly and regularly arranged at left and right sides of the centre pattern block from inside to outside. The saloon car tyre surface is divided into left and right symmetrical parts by the centre pattern block. The centre pattern block is a vertical one-piece pattern block and is located in the center of the saloon car tyre surface. The centre pattern block is separated from the side pattern blocks through main vertical circle pattern channels located between the centre pattern block and the side pattern blocks. The side pattern blocks are separated from the shoulder pattern blocks through auxiliary vertical circle pattern channels located between the side pattern blocks and the shoulder pattern blocks. Adjacent two of the side pattern blocks are separated through an inclined side pattern channel and two ends of the inclined side pattern channel are respectively communicated with the main vertical circle pattern channel and the auxiliary vertical circle pattern channel. Adjacent two of the shoulder pattern blocks are separated through a shoulder pattern channel and the shoulder pattern channel is communicated with the auxiliary vertical circle pattern channel. The patterns of the saloon car tyre surface are mixed patterns and thus the saloon car tyre surface can produce an enough braking force and has good control performances and a beautiful appearance.

The invention discloses a projection method and back projection method for panoramic videos and pictures. The projection method comprises: a polyhedron is used for projection to a spherical surface and a spherical image is divided into a plurality of surfaces; with mapping transformation, a mapping relationship between each surface of the spherical image and each face of the polyhedron is established; and pixels of all surfaces of the spherical image are projected to the faces of the polyhedron in the mapping relationship. Besides, the back projection method includes: projection to a sphericalsurface is carried out by a polyhedral image and the spherical surface is divided into a plurality of surfaces; on the basis of mapping transformation, a mapping relationship between each surface ofthe polyhedral image and each face of the spherical surface is established; and pixels of all surfaces of the polyhedral image are projected to the surface of the spherical surfaces in the mapping relationship. According to the invention, on the basis of the panoramic image segmentation and polyhedral projection, pixel distribution becomes uniform, so that a problem of image quality reduction caused by panoramic image projection is solved.

A pneumatic tire comprises a tread portion (2) provided with a wavy circumferential groove (7) and a plurality of axial grooves (4). At the junction (5) of each axial groove (4) with the wavy circumferential groove (7), a acute-angled corner (6) is formed. At the junction (5), the axial groove (4) has a toe-side edge (4r) intersecting a junction-side edge (7a) of the wavy circumferential groove (7) at a first point (P1), and a heel-side edge (4f) intersecting the junction-side edge (7a) at a third point (P3). The first point (P1) is positioned between a second intersecting point (P2) and a junction-side maximum amplitude points (RL0) wherein the second intersecting point (P2) is that between the junction-side edge (7a) and a maximally-inclined tangent (Ka) to an opposite-of-junction-side edge (7b) of the wavy circumferential groove (7), and the junction-side maximum amplitude point (RL0) is a point on the junction-side edge (7a) at which the junction-side edge (7a) protrude maximally towards the junction-side.

The invention relates to a cerebral cortex surface uniform segmentation method based on a spectral clustering algorithm. The cerebral cortex surface uniform segmentation method comprises the followingsteps: firstly, reconstructing a triangularized cerebral cortex surface for structural nuclear magnetic resonance imaging data by utilizing Freesurfer software; secondly, modeling the surface of thecortex into an undirected graph composed of vertexes and edges according to topological information of the surface of the cortex, and constructing a sparse similarity matrix between vertexes of the cortex; and finally, realizing uniform segmentation of the cerebral cortex by using a spectral clustering algorithm. The method is mainly suitable for uniform segmentation of the cerebral cortex surfacegenerated by Freesurfer reconstruction, and a cerebral cortex segmentation map is provided for structure and function analysis. The method has the advantages that different levels of understanding ofcerebral cortex can be realized by setting different clustering numbers and combining functional connection and structural connection analysis; a relatively uniform segmentation map can be generatedby utilizing a local topological relation between vertexes; and the method can be converged to a globally optimal solution in a sample space of any shape.

The invention discloses fully dissolvable slips and belongs to the technical field of downhole tools, and is suitable for tool design needing deblocking anchoring structure such as a packer and a bridge plug. A preparation method of the fully dissolvable slips comprises coating a 0.5-1 mm thick nickel-based alloy thin layer which is high in wear resistance and coefficient of friction on a specially designed and processed water soluble magnesium aluminum alloy by means of a special process method. An application method of the fully dissolvable slips comprises the steps of matched with a slips cone and a slips back ring, in a tool sealing process, stretching the fully dissolvable slips uniformly and attaching the same to a bushing; and enabling the tool to be anchored to the bushing withoutmovement, and unblocking the tool automatically after the fully dissolvable slips is dissolved. Compared with conventional slips, the fully dissolvable slips does not damage the busing and is free ofimpurities in the bushing after being dissolved, so that follow-up construction is not affected and a construction flow is simplified.

The invention belongs to the field of agricultural machines and provides a garlic cleaving device. The garlic cleaving device comprises a feeding mechanism, a cleaving mechanism and a peel pressing mechanism. The feeding mechanism comprises a feeding hopper and a baffle conveying belt; the cleaving mechanism comprises a discharging hopper and a cleaving machine, the cleaving machine is located under the discharging hopper and provided with two sets of buffer rollers, each set of buffer rollers comprises upper buffer roller bodies, middle buffer roller bodies and lower buffer roller bodies, and the gap between the two sets of buffer rollers is decreased from top to bottom; the peel pressing mechanism is arranged below the cleaving mechanism and comprises a conveying belt, carrier rollers and a transfer hopper, and the carrier rollers are arranged on the conveying belt and provided with fluffy outer surfaces. The garlic cleaving device is provided with the cleaving machine, the two sets of buffer rollers serve as main bodies, and the device makes softened contact with garlic, the broken phenomenon is not likely to happen, the perfectness ratio of the garlic is greatly improved, the garlic is clove evenly, the cleaving effect is good, the cleaving mechanism is simple in structure, and the garlic cleaving device is convenient to maintain and clean.

The invention discloses an image significance detection method based on an improved graph model, and belongs to the technical field of computer vision and image detection. The image significance detection method comprises the following steps: segmenting an image into superpixels by adopting simple linear iterative clustering, constructing an undirected graph by taking the superpixels as vertexes,and extracting high-level features by utilizing image bottom-level features and priori knowledge on the basis of an improved graph model to obtain a saliency map based on the bottom-level features; selecting foreground and background seed nodes by utilizing high-level features and compactness of a significant object, and respectively calculating and fusing a foreground seed-based saliency map anda background seed-based saliency map; and finally, fusing the saliency maps obtained in the two stages to obtain a final saliency map. According to the image significance detection method, the salientobjects in the image can be completely detected and uniformly highlighted; the detection accuracy of the salient objects in the complex environment is improved; the design requirement of an actual engineering system is met; and the problem that the detection accuracy of the salient objects in the complex environment is low is solved.

The invention provides a power station boiler waste heat utilization system capable of intelligently controlling and utilizing waste heat. The system comprises an air preheater and a heat accumulator,the system further comprises a central controller. The central controller is in data connection with an air preheater valve and a heat accumulator valve, a third temperature sensor is arranged at theposition of a flue gas inlet of the air preheater, and the central controller automatically controls the valve opening of the air preheater valve and the valve opening of the heat accumulator valve according to the temperature detected by the third temperature sensor. Through the operation, when the temperature of flue gas is high and the generation requirement of preheated air is met, redundantheat is stored through the heat accumulator, and when the temperature of the flue gas is low, more flue gas can enter the air preheater to be used for preheating the air, so that the requirement of the preheated air is met, and meanwhile, energy is saved.

The invention relates to the technical field of automatic laying forming of composite materials, in particular to a split type wire harness supply device which aims to solve the problems that a mechanical arm of an existing wire laying machine is uneven in stress, poor in dynamic property, poor in interchangeability and low in dismounting and mounting efficiency and has collision interference. Therefore, the wire harness supply device is connected with a mechanical arm of a wire laying head, wherein the wire harness supply device comprises a base, and further comprises a plurality of single-section feeding assemblies, a wire combining ring plate and a steering wheel assembly which are connected with the base. The single-section feeding assemblies are annularly distributed around the base and are detachably connected with the base. The split type wire harness supply device solves the problems of collision interference, angle limitation and the like brought by the centralized arrangementof feeding devices on one side behind the wire laying head; and 360-degree maximum range rotation work can be realized.

The invention provides a preparation method of spherical nano cerium dioxide. The preparation method comprises the following steps: respectively dissolving cerium salt and alkali in an organic solvent, then mixing the two solutions, and carrying out precipitation reaction; after the precipitation reaction is completed, adding a high-molecular polymer into a reaction system, and stirring to obtain a reaction mixture; carrying out high-speed shearing dispersion on the obtained reaction mixture at the temperature of 40-220 DEG C for 30 min-48 h, and continuously blowing oxidizing gas into the reaction system during the high-speed shearing dispersion; and centrifugally separating the obtained product to obtain a solid, washing and drying to obtain the spherical nano cerium dioxide. According to the method disclosed by the invention, the monodisperse spherical nano CeO2 with the particle size of 40 nm-200 nm can be prepared; meanwhile, the method disclosed by the invention has the characteristics of high process stability, high yield, high operability and the like, and is suitable for large-scale production.

The invention relates to a series of culture kits for regenerating hedychium coronarium hookeriana plants and an application thereof, and belongs to the field of plant tissue culture. The series of culture kits for the regenerating hedychium coronarium hookeriana plants comprises a seed germination culture medium, a callus induction culture medium, a callus proliferation culture medium and a callus redifferentiation culture medium. A hedychium coronarium hookeriana callus regenerating system is simple in operation steps, low in explant pollution rate, high in callus induction speed, high in regenerating efficiency, free of seedling strengthening and rooting steps and capable of achieving one-step seedling formation.

The invention relates to a water bottle, in particular to a water bottle for taking medicine. The present invention adopts the following technical scheme: comprising a water bottle body and a bottle cap, the water bottle body and the bottle cap are flexibly connected by threads; Inlaid on the side of the water bottle body; heat insulation material is laid between the medicine box and the water bottle body, and there are four medicine boxes; the side of the bottle cap is provided with wedge-shaped protrusions, and the end of the wedge-shaped protrusions is provided with a rope hole; the top of the bottle cap Equipped with medicine cutting device. The invention has the advantages of: it is very convenient to remind people to take medicine when drinking water, or cooperate with the water in the water bottle to deliver medicine when taking medicine; The effect becomes worse; the wedge-shaped bump design of the bottle cap makes it easy to tighten or unscrew the bottle cap; the drug cutting device on the top of the bottle cap can evenly and conveniently cut the tablet in half.

The invention provides a steam heat exchanger. The steam heat exchanger comprises a header and a steam pipe; steady flow devices are arranged inside the steam pipe and are each of a sheet structure; the sheet structures are arranged on the cross section of the steam pipe; the steady flow devices are composed of square through holes and right octagon through holes; the length of each side of the square through holes is equal to the length of each side of the right octagon through holes; the four sides of each square through hole are the sides of four different right octagon through holes; and the four spaced sides of each right octagon through hole are the sides of four different square through holes. Compared with a steady flow device in the prior art, the steam heat exchanger with the steady flow structures further improves the steady flow effect, enhances heat transfer and is easy to manufacture.