Abstract: A fixture and a construction method suitable for installation and uninstallation of large steel structures are provided. The fixture has a limit adapter component used to support and fix steel structures, a spherical sliding device connected with the limit adapter component, a locking device provided with an arc-shaped groove, an inclined strut whose two ends are hinged with the locking device and the spherical sliding device respectively, a jacking mechanism installed at the bottom of the locking device, and a gasket adjustment unit located outside the jacking mechanism and abutted with the bottom of the locking device.

Abstract: The present application relates to a wiper arm, which comprises a wiper arm body and a wiper arm end piece, the wiper arm end piece being fixedly connected to one end of the wiper arm body to hold a wiper blade, the wiper arm being further provided with a nozzle and a hose, wherein the nozzle is connected to an extension section of the wiper arm end piece towards the return side or the outward swing side of the wiper arm; the hose extends along the wiper arm body, and one end of the hose is connected to the nozzle to deliver a cleaning fluid to the nozzle. The arrangement of a nozzle on the wiper arm ensures that a cleaning fluid is quickly wiped off, the driver is given a clear field of vision, and the cleaning fluid usage may also be reduced.

Abstract: A control method for the combustion system comprises: a fuel injector conducts first primary spray and second primary spray at intervals, and the fuel injector injects fuel to a first arc ridge during the first primary spray; and the fuel injector sprays fuel to a second arc ridge during the second primary spray. By adopting a combustion chamber having two arc ridges and respectively injecting fuel to the two arc ridges by means of the fuel injector, it can be ensured that the amount of fuel shared by each arc ridge is reduced, gathering the fuel at a single arc ridge can be avoided, and it is beneficial to exert the improvement effect of the arc ridge on a wall impact jet flow velocity field at the tail end of a fuel beam, such that the fuel and gas distribution in a cylinder is facilitated.

Abstract: Provided is a display apparatus. The display apparatus includes: a liquid crystal display panel and a backlight module, wherein a first sealed air cavity is formed inside the liquid crystal display panel, and the backlight module is located on one side of the liquid crystal display panel and forms a second sealed air cavity with the liquid crystal display panel; and a sound production board and a sound production exciter, wherein the sound production board is fixed onto the surface of the backlight module away from the liquid crystal display panel, a vibration output terminal of the sound production exciter is fixed onto the surface of the sound production board away from the backlight module, and the sound production exciter is used for exciting, by means of the vibration output terminal, the sound production board to vibrate, so as to drive the backlight module to vibrate.

Abstract: The present application provides a display apparatus. The display apparatus includes: a display panel; a backlight module, which includes a backlight board and an optical film component, where the backlight board includes a backlight board body and a light source, an edge of the display panel is connected to an edge of the backlight board body, so as to form a gas layer between the display panel and the backlight board body, and the light source is positioned in the gas layer; a backplane, which is arranged on the side of the backlight module away from the display panel, and is used for supporting the backlight module and the display panel; an exciter, which includes an exciter body and an actuation member.

Abstract: The present application relates to a wiper arm, which comprises a wiper arm body and a wiper arm end piece, the wiper arm end piece being fixedly connected to one end of the wiper arm body to hold a wiper blade, the wiper arm being further provided with a nozzle and a hose, wherein the nozzle is connected to an extension section of the wiper arm end piece towards the return side or the outward swing side of the wiper arm; the hose extends along the wiper arm body, and one end of the hose is connected to the nozzle to deliver a cleaning fluid to the nozzle. The arrangement of a nozzle on the wiper arm ensures that a cleaning fluid is quickly wiped off, the driver is given a clear field of vision, and the cleaning fluid usage may also be reduced.

Abstract: Provided is a rear wiper assembly having a rear wiper arm, a cover, a joint, and a motion-stopping mechanism. A connector and a cover are hingedly connected to the rear end of the rear wiper arm. When the cover is in a closed state, it covers the connector; the motion-stopping mechanism has a first interference element and a second interference element, at least one of the interference elements being a flexible element; the first interference element is arranged on the rear wiper arm, and the second interference element is arranged on the cover, when the cover is in an open state and when the angle between the upper surface of the cover and the upper surface of the rear wiper arm is within a predetermined range, the interference elements interfere with each other, preventing the cover from turning over in the direction of the connector.

Abstract: A display apparatus includes a liquid crystal display panel and a backlight module, a first sealed air cavity formed inside the liquid crystal display panel, and the backlight module being located on one side of the liquid crystal display panel and forming a second sealed air cavity with the liquid crystal display panel; and a sound-emitting board and a sound-emitting exciter, the sound producing board being fixed to the surface of the backlight module far away from the liquid crystal display panel, and a vibration output terminal of the sound-emitting exciter being fixed to the surface of the sound-emitting board far away from the backlight module.

Abstract: A system, method and computer program product for estimating future axial elongation of an individual's eye as a way to predict and track refractive error progression of an individual. The method includes: receiving, via a computer interface, data relating to refractive change in a prior pre-determined time period for the individual from a reference timepoint; receiving data representing an age of the individual and data representing a current axial length value of the eye as measured at the reference timepoint; calculating, by said processor, a future axial elongation of the eye as a function of the age of the individual, the current axial length value of the eye as measured at the reference timepoint, and the refractive change in the prior pre-determined time period; generating, an output indication of said computed axial elongation of the eye, and using said output indication to select a myopia control treatment for said individual.

Abstract: A path delay prediction method for an integrated circuit based on feature selection and deep learning. First, an integrated feature selection method based on filter methods and wrapper methods is established to determine an optimal feature subset. Timing information and physical topological information of a circuit are then extracted to be used as input features of a model, and local physical and timing expressions of cells in circuit paths are captured by means of the convolution calculation mechanism of a convolutional neural network. In addition, a residual network is used to calibrate a path delay. Compared with traditional back-end design processes, the path delay prediction method provided by the invention has remarkable advantages in prediction accuracy and efficiency and has great significance in accelerating the integrated circuit design process.

Abstract: A path delay prediction method for an integrated circuit based on feature selection and deep learning. First, an integrated feature selection method based on filter methods and wrapper methods is established to determine an optimal feature subset. Timing information and physical topological information of a circuit are then extracted to be used as input features of a model, and local physical and timing expressions of cells in circuit paths are captured by means of the convolution calculation mechanism of a convolutional neural network. In addition, a residual network is used to calibrate a path delay. Compared with traditional back-end design processes, the path delay prediction method provided by the invention has remarkable advantages in prediction accuracy and efficiency and has great significance in accelerating the integrated circuit design process.

Abstract: A control method for the combustion system comprises: a fuel injector conducts first primary spray and second primary spray at intervals, and the fuel injector injects fuel to a first arc ridge during the first primary spray; and the fuel injector sprays fuel to a second arc ridge during the second primary spray. By adopting a combustion chamber having two arc ridges and respectively injecting fuel to the two arc ridges by means of the fuel injector, it can be ensured that the amount of fuel shared by each arc ridge is reduced, gathering the fuel at a single arc ridge can be avoided, and it is beneficial to exert the improvement effect of the arc ridge on a wall impact jet flow velocity field at the tail end of a fuel beam, such that the fuel and gas distribution in a cylinder is facilitated.

Abstract: An ophthalmic lens for slowing or preventing the progression of myopia having a lens center, a shape defined by a lens outer peripheral edge, and an optic zone surrounding lens center and having an outer periphery. The optic zone has a central optic zone surrounding the lens center and defined by a central optic zone radius, and a peripheral optic zone surrounding the central optic zone and extending to the optic zone outer periphery. The lens includes a plurality of myopic defocus zones each positioned at a predetermined radial distance from the lens center, and each introducing a predetermined ADD power that increases with increased radial distance from lens center up to a radius of at least 4 mm. At least a first myopic defocus zone is positioned within the central optic zone, and at least first and second myopic defocus zones are positioned in the peripheral optic zone.

Abstract: An ophthalmic lens and system for designing a lens. The lens includes a lens center, and a shape defined by a lens outer peripheral edge. An optic zone surrounds the lens center and has an optic zone outer periphery with an optical power selected to correct a myopic condition of a user. The lens has a toric power at the lens center that is less than a toric power at the optic zone outer periphery, and has a variable toric power that increases radially across at least a portion of the lens to at least the optic zone outer periphery. The variable toric power has a predetermined power profile that induces positive field-of-view averaged blur anisotropy for the user at or in front of a retinal plane of the user.

Abstract: Provided is a semiconductor device that includes: a semiconductor substrate having a first doped region of a first doping type and a second doped region of a second doping type, the first doped region being beneath but immediately adjacent to, the second doped region, with the first doping type being opposite the second doping type, thereby forming a junction region between the first doped region and the second doped region; and an additional layer that has been deposited above the junction region having similar mechanical properties as the semiconductor substrate. The additional layer covers at least 50% of a projection area of the junction region. The second doped region has a top surface, the additional layer has a bottom surface, and at least 90% of the bottom surface of the additional layer is electrically insulated from the top surface of the second doped region.

Abstract: An object reconstruction method includes obtaining a plurality of target images and real poses corresponding to a case in which a camera captures the target images. Based on the target images and the real poses, a sparse point cloud whose size is consistent with a real size of a target object is constructed and a three-dimensional (3D) model of the target object is generated based on the sparse point cloud. A distribution size of the sparse point cloud generated based on the first poses is consistent with the real size of the target object such that the reconstructed 3D model is more realistic, and does not include a size distortion.

Abstract: A real-time control system includes a faulty variable identification technique to implement a data-driven fault detection function that provides an operator with information that enables a higher level of situational awareness of the current and likely future operating conditions of the process plant. The faulty variable identification technique enables an operator to recognize when a process plant component is behaving abnormally to potentially take action, in a current time step, to alleviate the underlying cause of the problem, thus reducing the likelihood of or preventing a stall of the process control system or a failure of the process plant component.

Abstract: The present application relates to a wiper arm, which comprises a wiper arm body and a wiper arm end piece, the wiper arm end piece being fixedly connected to one end of the wiper arm body to hold a wiper blade, the wiper arm being further provided with a nozzle and a hose, wherein the nozzle is connected to an extension section of the wiper arm end piece towards the return side or the outward swing side of the wiper arm; the hose extends along the wiper arm body, and one end of the hose is connected to the nozzle to deliver a cleaning fluid to the nozzle. The arrangement of a nozzle on the wiper arm ensures that a cleaning fluid is quickly wiped off, the driver is given a clear field of vision, and the cleaning fluid usage may also be reduced.

Abstract: A wiper arm and assembly are disclosed. The wiper arm has a wiper arm holder, connected at one end to an output portion of a driving mechanism for the wiper arm that drives the wiper arm to swing back and forth in an outward-swinging direction, an extension arm pivotally connected to the other end of the wiper arm holder, a wiper arm end member located on the side of the wiper arm opposite to the wiper arm holder and configured to hold a wiper blade, and a washer assembly having at least a first nozzle, and a first conduit in fluid communication with the first nozzle. The first nozzle includes a nozzle unit, a first connector for the first conduit, and a bridge channel located between them, above the blade. The bridge channel is partially aligned with a segment of the wiper arm end member that is located above the blade.

Abstract: A scroll compressor includes: a rotary shaft; a compression mechanism including an orbiting scroll and a non-orbiting scroll, an extension portion of the orbiting scroll engaging with an eccentric structure of the rotary shaft via a bushing and a driving bearing having an axial height L1; and a counterweight located on the bushing, a mass center of the counterweight being located above an axial lower end of the driving bearing and having an axial distance L2 to the axial center of the driving bearing, and the ratio R of the axial distance L2 to the axial height L1 satisfying: 0.1?R?0.4. The scroll compressor can reduce the contact and wear between the bushing and the driving bearing and reduce the requirements for the manufacturing precision and the mounting precision of components such as the counterweight and the bushing, achieving optimized system design.