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103results about How to "Improvement effect" patented technology

Mixed unit of foam metal ball pipe assembly

The invention relates to a mixed unit of a foam metal ball pipe assembly. The mixed unit consists of an exhaust pipe, a nozzle, a connecting flange, a welding spot, a fastening outer sleeve, a fastening inner sleeve, a metal fiber braided pipe and a foam metal ball. The mixed unit is characterized in that: the fastening outer sleeve and the fastening inner sleeve are used for fixing the metal fiber braided pipe and welded into a whole by using the connecting flange; the inside diameter of the fastening inner sleeve is D1, the diameter of the foam metal ball is D2, and the ratio D2/D1 of the diameter D2 of the ball to the sleeve diameter D1 is 1.5 to 2.5; the ratio L2/L1 of the length L2 of the fastening outer sleeve to the length L1 of the fastening inner sleeve is 3 to 5 millimeters; L2 is 300 millimeters; and the mixed unit is arranged at the downstream of the nozzle for a urea reducer. The foam metal ball is wrapped by adopting the metal fiber pipe to form the mixed unit of the concentric cylindrical foam metal ball pipe assembly for the urea reducer, a catalyst is coated on the foam metal ball, and the mixed unit is applied to mixed decomposition of the urea reducer; and the mixed unit has simple structure, is efficient and durable, and is applied in an over national 4 post treatment device.
Owner:CHINA FIRST AUTOMOBILE

Crowd exceptional event detection method, electronic equipment and storage medium

The invention discloses a crowd exceptional event detection method. The method comprises the steps that a first image and a second image are acquired; multiple optical flow points of the first image are calculated according to the first image and the second image; an optical flow point adjacency matrix is calculated according to a horizontal coordinate relation and a vertical coordinate relation among all the optical flow points; the optical flow points are divided into corresponding region sets according to the optical flow point adjacency matrix and clustering conditions; each region set isdivided into at least one region subset according to a distance relation among the optical flow points; all the region subsets are corrected according to historical grouping information, and correctedsubsets are obtained; and whether a crowd exceptional event occurs is judged according to an average motion distance of the optical flow points in each corrected subset. According to the method, optical flow is adopted to represent motion features of a scene, cluster grouping is performed on the optical flow points, then optical flow information in each group is calculated to perform statisticalanalysis on motion conditions of the corresponding group, therefore, an exceptional event occurring in a crowd can be detected, and the method can be suitable for different scenes and has good instantaneity.
Owner:深圳市深网视界科技有限公司

Preparation method of recycled aggregate for inhibiting alkali-aggregate reaction

The invention provides a preparation method of recycled aggregate for inhibiting an alkali-aggregate reaction. The preparation method is prepared from the following steps (1) the recycled aggregate iscollected, specifically, recycled concrete is crushed and sieved, and thus the recycled aggregate with the concrete required size is prepared; (2) silica fume slurry is prepared, specifically, according to the water-solid mass ratio of 5:1 to 15:1, silica fume is dissolved in water, and the silica fume slurry is prepared; (3) the silica fume slurry is subjected to vacuum suction to prepare the recycled aggregate, specifically, the collected and prepared recycled aggregate and the silica fume slurry are jointly placed into a vacuum container with the negative pressure for 6-18 h, and it is ensured that the silica fume slurry is fully sucked into recycled aggregate attached slurry body; and (4) the recycled aggregate with the sucked silica fume is dried, specifically, the recycled aggregatesubjected to vacuum sucking of the silica fume slurry is dried, and thus the recycled aggregate for effectively inhibiting alkali activity is obtained. According to the preparation method, a technology is simple, the cost is low, meanwhile, the recycled aggregate with the alkali activity can be efficiently utilized, and the environmental pressure is relieved.
Owner:HUNAN UNIV

Large-area high-density nuclear track nano-pore membrane, as well as equipment and method for preparing large-area high-density nuclear track nano-pore membrane

The invention relates to equipment and method for preparing a large-area high-density nuclear track nano-pore membrane. The equipment comprises an etching generation device, wherein the etching generation device comprises a clamping part and a liquid holding part; the clamping part is used for clamping a latent track film and is fixed on the liquid holding part filled with etching liquid; an intermittent ultrasonic action is provided by utilizing an ultrasonic generator, and an etching product remained in track holes can be peeled in time; the latent track film is subjected to radiating sensitization by utilizing an ultraviolet lamp, and the etching speed is accelerated. According to the equipment and method, uniform etching of the film can be realized; the etching product is peeled by utilizing ultrasonic waves, so that the etching liquid and the latent track can be sufficiently contacted, and the etching speed of the track can be accelerated; the film is protected against the broken risk due to long-time vibration of the ultraviolet waves by adopting the intermittent ultrasonic action; and the track nano-porous film has excellent reflection resistance, and has wide application range due to the large area and high pore density.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Tongue image segmentation method based on threshold technology and gray scale projection

The invention provides a tongue image segmentation method based on the threshold technology and gray scale projection, and the method comprises the following steps: S1, transforming a hue component ofan obtained tongue image in an HSI color space, so that there is a difference in hue between the hue component of a tongue and an upper lip and its neighbor tissues after transformation; S2, employing the image threshold segmenting technology on the transformed hue component to obtain a binary segmentation result, and performing a morphological operation of the result to extract an initial tongueregion including the true tongue and the upper lip; S3, using the gray projection technique to find an image line corresponding to the boundary of a tongue root, removing the false tongue regions through the image line, such as the false region of the upper lip and the gap between the tongue root and the upper lip, correcting the tongue region, and taking the boundary of the tongue region as an initial tongue contour; S4, carrying out the smoothing processing of the tongue contour through using an active contour model to obtain a final segmentation result of the tongue image. The method remarkably improves the tongue image segmentation effect.
Owner:FUJIAN UNIV OF TRADITIONAL CHINESE MEDICINE

Far-infrared sauna bodybuilding system based on physical sign parameters and use method thereof

The invention relates to a far-infrared sauna bodybuilding system for non-therapeutic purposes based on physical sign parameters and a use method thereof, belonging to the technical field of electronics and solving the problems that the traditional sauna body-building system cannot accurately supply temperature and humidity environments moderate for a human body, is relatively troublesome to use and the like. The far-infrared sauna body-building system based on physical sign parameters comprises a far-infrared sauna room, a health management unit, an identity authentication unit connected with the health management unit, a physical sign parameter testing unit, a display unit and a temperature and humidity control unit. The use method of the far-infrared sauna body-building system based on physical sign parameters comprises the steps of: (1) starting and initializing a system; (2) inputting and identifying identity information; (3) testing physical parameters; (4) analyzing and generating a body-building instruction scheme; (5) executing the instruction scheme; (6) carrying out sauna showering; and (7) closing the system. The sauna bodybuilding system has the advantages of convenience for use and capability of providing a moderate temperature/humidity-controlled environment.
Owner:黄军军

Bent axle box ventilation labyrinth

ActiveCN101943040AIncrease contact area and number of collisionsImprovement effectMachines/enginesCrankcase ventillationGas separationGas passing
The invention provides a bent axle box ventilation labyrinth with simple structure and good oil gas separating effect. The main body of the labyrinth is a cuboid cavity; the main body has an air outlet and an air inlet; multiple groups of diaphragms are arranged between the air inlet and the air outlet in the cavity at intervals; each group of diaphragms is composed of a first diaphragm close to the direction of the air inlet and a second diaphragm close to the direction of the air outlet; the distance of the first diaphragm and the second separation is 2-10mm; a first gas passing clearance is arranged between the top part of the first diaphragm and the top plate of the main body; a through hole is arranged at the center of the first diaphragm; a second gas passing clearance is arranged between the side of the diaphragm and the side plate of the main body; oil returning holes are arranged at the bottoms of the first diaphragm and the second diaphragm; the bent axle box ventilation labyrinth of the invention utilizes the clearances formed between the inner wall of the main body and the diaphragm and between the diaphragms as oil and gas flowing channels to lead oil and gas to flow in the narrow clearances, thus increasing the contact areas and crashing times between the oil and gas and the diaphragm as well as between the oil and gas and the inner wall of the main body, and improving the effect of oil and gas separation.
Owner:CHERY AUTOMOBILE CO LTD
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