9 results about "Radial line" patented technology

A sole portion for an item of footwear having a plurality of cleat systems, cleats, or plate structures that dissipate force by deflecting, deforming, displacing or otherwise shifting under selected force, or by facilitating cleat movement around a radial line during ground engagement.

An apertured article, insertion article and associated systems. The apertured article having an aperture, which has an aperture periphery, the aperture periphery having an aperture inner periphery and spaced aperture protrusions that extend radially outwardly from the aperture inner periphery to an aperture outer periphery. The aperture outer periphery is defined by distal edges of the spaced aperture protrusions. The aperture inner periphery is positioned along the circumference of an inner aperture reference circle, the inner aperture reference circle inscribing the aperture periphery, and the aperture outer periphery is positioned along the circumference of an outer aperture reference circle. As viewed along a radial line whose origin is at the center of the inner aperture reference circle, the aperture inner periphery can be positioned along 0.4 to 0.6 of the entire circumference of the inner aperture reference circle. The insertion article can be configured for insertion in the apertured article.

This invention discloses a high-frequency structure and field uniformity optimization method for an S-band multi-beam klystron. By coupling a radial line and a coaxial line at the middle of the right side of the inner wall of the output coaxial resonant cavity to form an axisymmetric structure, and by adjusting the width of the radial line and the inner and outer diameters of the coaxial line, the operating mode frequency and external quality factor meet the requirements, thus obtaining an output coaxial resonant cavity with field uniformity. This ensures that almost every beam in the multi-beam klystron experiences equal modulation, naturally suppressing the generation of reflected electrons in the output resonant cavity and significantly improving the device's performance.

This invention provides a method and system for converting elliptical ring images, relating to the field of image processing technology. The method includes: determining the elliptical ring parameters of an input target image containing an elliptical ring; wherein the elliptical ring parameters include the center coordinates of the elliptical ring, the major semi-axis of the elliptical ring, the minor semi-axis of the elliptical ring, the rotation angle, the starting angle, and the angle range; constructing an arc length-angle lookup table for the elliptical ring based on the elliptical ring parameters; determining the target angle corresponding to each rectangular column based on multiple rectangular columns contained in a preset rectangular image, the elliptical ring parameters, and the arc length-angle lookup table; determining the angular radial line corresponding to each target angle based on the rotation angle and the elliptical ring parameters; and sequentially mapping the pixels of the angular radial lines corresponding to each target angle to the rectangular image according to a preset direction to obtain the target rectangular image corresponding to the target image. This invention improves the accuracy of detection results for elliptical ring images.

This invention discloses a method, system, and medium for human fall detection based on multi-view geometry. The method includes: acquiring intrinsic and extrinsic parameters of multiple fixed cameras and a ground homography matrix; simultaneously acquiring images and obtaining a binary mask of the human body with global identifiers; determining radial lines based on the nadir points of each camera, adaptively selecting the optimal viewing angle camera, extracting foot and head image points, and calculating the horizontal position and vertical height using the homography matrix and geometric relationships; using multi-view ground homography constraints, mapping mask pixels in a reference view to other views for consistency verification, backprojecting verified pixels onto the ground plane to reconstruct the contact area and calculate the area; and fusing at least the temporal changes in height and contact area to determine whether a fall has occurred. This invention can accurately measure key physical quantities related to falls and has advantages such as strong robustness, high accuracy, good interpretability, and controllable hardware costs.

The application discloses a kind of methods for detecting the tilt defect of equalizing ring, which mainly includes the following steps: obtaining the area image of equalizing ring, image recognition is carried out on equalizing ring and insulator in the area image;Obtain the profile of equalizing ring and insulator, obtain two first reference points at the position of equalizing ring and multiple second reference points at the position of insulator, and construct the radial line of equalizing ring according to the first reference point;Multiple third reference points are constructed according to multiple second reference points, and the axial line of core rod is constructed through multiple third reference points.The present application can obtain the neural model after the convolutional neural network training, by obtaining the area image of equalizing ring and recognizing the profile of equalizing ring and insulator, the radial line of equalizing ring and the axial line of core rod are established respectively, the included angle of radial line and axial line is calculated, the angle between equalizing ring and core rod is obtained, and then it is judged whether equalizing ring is in the tilt state.

The invention provides an ultrasound data processing method (30) for detecting presence of an intravascular object in a vessel lumen based on analysis of acquired intravascular ultrasound data of the lumen. The method comprises receiving (32) data comprising multiple frames, and each frame containing data for a plurality of radial lines, corresponding to different circumferential positions around the IVUS device body, and reducing (34) the data to a single representative value for each radial line in each frame. These representative values are subsequently processed to derive (36) values for at least each frame representative of a probability of presence of an object within the given frame. Based on the probability values, a region within the data occupied by an intravascular object, for instance a consecutive set of frames occupied by an object, is determined (38).

The application provides a shearing type unlocking separation device, a dynamic test system and an unlocking force control method. The device comprises an unlocking bolt, a shearing protective sleeve and an auxiliary mechanism. The unlocking bolt comprises a first threaded section, an unlocking separation section and a second threaded section. Two weakening grooves are arranged on the unlocking separation section and extend in the same direction. The two weakening grooves are provided with through holes at the side ends close to each other. The distance between the two through holes is l. The angle between the weakening grooves and the axis of the unlocking separation section is β. The angle between the line connecting the two through holes and the radial line of the unlocking separation section is α. The two weakening grooves penetrate the unlocking separation section. The weakening grooves are filled with high-strength fillers. The shearing protective sleeve is sleeved on the unlocking separation section. The auxiliary mechanism is threadedly connected to the second threaded section. The application can realize rapid response and precise control of unlocking force, and the separation process does not produce harmful gas, and the economic efficiency and environmental benefits are good.

This invention discloses a near-field focusing circularly polarized radial slot array antenna and its design method. Based on a single-layer radial waveguide, the antenna employs direct feeding via coaxial probes. The focal position and circular polarization direction are adjusted by modifying the slot pair layout and slot orientation. Etching helical slots improves the antenna's radiation performance, and loading short-circuit probes suppresses the influence of higher-order modes. This invention addresses the limitations of existing technologies, such as the application scenarios of ring-distributed slot pairs, the difficulty in implementing electromagnetic algorithm analysis, and the low radiation efficiency of existing near-field focusing antennas. This invention achieves near-field focusing characteristics not yet present in existing radial slot array antennas, reducing the structural complexity of existing near-field focusing antennas and improving antenna efficiency.