Abstract: An all-terrain vehicle includes a frame, wheels, a vehicle cover, a power supply system a saddle assembly, a brake system, a drive assembly and a suspension system. The all-terrain vehicle is sized for children to ride, with numerous disclosed modifications in accordance with its size and riders. For instance, the saddle assembly includes a locking hook accessible from the rear of the vehicle, and in the locked state holds the main power supply down into its compartment. The brake system uses a pawl for two handed setting of the parking brake. The instrument assembly allows adjustment of the display angle of the display screen. The charger cover uses a damping block to cause the cover to hover at a selected position. The all-terrain vehicle can meet the use needs and safety requirements of all-terrain vehicles for kids, and can ensure the safety of drivers.

Abstract: A riding mowing device includes a seat used for a user to sit on and including a seat cushion and a backrest; a frame for supporting the seat; a cutting assembly including a cutting deck and a mowing element for mowing grass, where the mowing element is at least partially accommodated in the cutting deck, and the cutting assembly is mounted to the frame; a traveling assembly for driving the riding mowing device to travel; a control circuit board for controlling at least the cutting assembly and the traveling assembly; and a power supply assembly for supplying power to at least the cutting assembly and the traveling assembly. At least part of the control circuit board is disposed between the seat and the power supply assembly.

Abstract: In the method, an access point AP receives action information separately reported by N stations STAs, where N pieces of action information are used to determine a training result of a first neural network of each STA, and N is a positive integer. The AP determines the training result of the first neural network of each STA based on the N pieces of action information, and sends the training result of the first neural network of each STA to the corresponding STA. The training result of the first neural network of each STA is determined based on the action information reported by the N STAs, instead of only the action information of the STA. This can improve a prediction capability of the first neural network, help improve a capability of each STA to predict channel access behavior of another STA, and improve a system throughput and reduce a communication latency.

Abstract: Disclosed are a network optimization method and apparatus, an electronic device, and a storage medium. The network optimization method may include: sending data analytics request information to a core network; receiving data analytics response information fed back by the core network and determining a model processing result according to an artificial intelligence learning model; and performing a network optimization operation according to the model processing result.

Abstract: Disclosed are a method and system for evaluating sonar self-noise at a ship design stage. The method includes: building a ship structure full-scale geometric simulation model; acquiring loss factors and sonar transducer space outfitting acoustic absorption coefficient material parameters; acquiring mechanical excitation, hydrodynamic excitation, and propeller excitation; inputting the loss factors and the sonar transducer space outfitting acoustic absorption coefficient material parameters into an established statistical energy evaluation model, and applying a mechanical excitation to a face plate of foundation of the built ship structure full-scale geometric simulation model, applying a hydrodynamic excitation to the surface of a ship hull, and applying a propeller excitation to a stern shaft to perform calculation of sonar self-noise of a ship to obtain total spectral density level of the sonar self-noise; and evaluating spectral density level calculation results by index requirements.

Abstract: A charging system includes at least one first charging device and at least one second charging device that are cascaded. The first charging device includes at least one first accommodation portion for mounting a first energy storage device and a connecting port for connecting the second charging device or the first charging device. The second charging device includes at least one second accommodation portion for mounting a second energy storage device and a connecting port for connecting the first charging device or the second charging device. The first accommodation portion and the second accommodation portion have different shapes or dimensions.

Abstract: A structural temperature self-monitoring system based on a chiral structured shape memory polymer microporous plate, comprising a fixing apparatus, a chiral structured microporous plate, and a triboelectric nanogenerators set. Each chiral element of microporous plate is provided with a hexagonal cell and six chiral legs, and the microporous plate may occur specific deformation under certain conditions. The microporous plate is fixed on the fixed apparatus, and the triboelectric nanogenerators set comprises two lateral sliding mode triboelectric nanogenerators that are symmetrically distributed; the data of deformation of chiral structured microporous plate in converse directions is collected; and a voltage is emerged for measurement. The system can monitor the temperature of any portion of structure without an external power supply, and obtain the temperature data possessing both timeliness and accuracy under the condition of ensuring the integrity and representativeness of temperature data.

Abstract: A charging system includes at least one first charging device and at least one second charging device that are cascaded. The first charging device includes at least one first accommodation portion for mounting a first energy storage device and a connecting port for connecting the second charging device or the first charging device. The second charging device includes at least one second accommodation portion for mounting a second energy storage device and a connecting port for connecting the first charging device or the second charging device. The first accommodation portion and the second accommodation portion have different shapes or dimensions.

Abstract: An image display method includes: obtaining attribute information of each of sub-pixels in an under-display camera region and in a normal display region; calculating a compensated brightness value of the under-display camera region and an attenuated brightness value of the normal display region according to the attribute information; displaying an image according to the compensated brightness value of the under-display camera region and the attenuated brightness value of the normal display region.

Abstract: Disclosed are a method and system for evaluating sonar self-noise at a ship design stage. The method includes: building a ship structure full-scale geometric simulation model; acquiring loss factors and sonar transducer space outfitting acoustic absorption coefficient material parameters; acquiring mechanical excitation, hydrodynamic excitation, and propeller excitation; inputting the loss factors and the sonar transducer space outfitting acoustic absorption coefficient material parameters into an established statistical energy evaluation model, and applying a mechanical excitation to a face plate of foundation of the built ship structure full-scale geometric simulation model, applying a hydrodynamic excitation to the surface of a ship hull, and applying a propeller excitation to a stern shaft to perform calculation of sonar self-noise of a ship to obtain total spectral density level of the sonar self-noise; and evaluating spectral density level calculation results by index requirements.

Abstract: An image display method includes: obtaining attribute information of each of sub-pixels in an under-display camera region and in a normal display region; calculating a compensated brightness value of the under-display camera region and an attenuated brightness value of the normal display region according to the attribute information; displaying an image according to the compensated brightness value of the under-display camera region and the attenuated brightness value of the normal display region.

Abstract: A trim assembly is provided with a first trim member having a first finished surface and a second surface opposite thereto, a second trim member in contact with the second surface of the first trim member and attached to the first trim member via a first join, and a third trim member in contact with the second trim member and attached to the second trim member via a second join, the second join unaligned with the first join. The third trim member extends outwardly from the second trim member to a distal end having a first retainer. An assembly with a seat member and a trim assembly, and a seat are provided. In various non-limiting examples, the trim assembly may provide the desired shape of the seat, maintain durability and appearance, prevent looseness, and allow for use of a common seat member with trim assemblies of various appearances.

Abstract: The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.

Abstract: The present disclosure provides a high-strength and high-plasticity casting high-entropy alloy (HEA), having a general formula of AlaCobCrcTidFeeNifCug, where 6.0<a?8.0, 18.0<b?23.0, 7.5?c<12.5, 2.0<d?8.5, 15.5<e?20.0, 28.0<f?37.0, 0.2<g?10.0, and a+b+c+d+e+f+g=100. The casting HEA can be prepared in one step and has excellent mechanical properties. The various metal raw materials are environmental-friendly and suitable for large-scale industrial production.

Abstract: A vehicle seat having a seat cover including an outer cover, a padding layer, and a backing element that are joined together with stitches or a lamination joint. A seat cover retention apparatus is operatively connected to the backing element wherein a plurality of straps secure the backing element to the vehicle seat structure. Lateral side straps are secured to the backing element and extend through openings defined by the foam bun and are secured to the frame and/or the foam bun. A center strap is secured to the backing element and extends through a center opening to be secured to a back side of the foam bun and/or frame. The backing element may be an elastic strap or a layer of non-woven fleece material with slits for the straps. The straps may be elastic material or non-woven material.

Abstract: The present disclosure relates to the technical field of silicon carbide processing, and discloses a method and device for preferential etching of dislocation of a silicon carbide wafer. According to the method and device of the present disclosure, a concentration of the etchant is effectively reduced while the high-temperature etching activity is guaranteed, the dislocations on the carbon surface and the silicon surface of the silicon carbide wafer are exposed, and dislocation etching pits with high distinguishing degree are obtained on the carbon surface and the silicon surface of the silicon carbide wafer and thus identified clearly.

Abstract: A refrigeration appliance has a storage box with an open upper end. First and second hanging pins are disposed on a cover plate. The first hanging pin is hung in a first hanger loop and is movable in a front-rear direction and/or an up-down direction in the first hanger loop. The second hanging pin is hung in a second hanger loop and is movable in the front-rear direction and/or the up-down direction in the second hanger loop. The cover plate is movable in the front-rear direction and/or the up-down direction relative to the storage box to at least partially open and close the storage box. The first hanger loop includes an open section that enables the first hanging pin to enter the first hanger loop from the open section and the cover plate of the refrigeration appliance is thereby easy to install.

Abstract: A trim assembly for a vehicle seat is provided with a first trim panel adapted to be pivotally connected to a lower region of a rear surface of a backrest that is pivotally adjustable relative to a seat cushion, to cover a gap between the backrest and the seat cushion in an upright position of the backrest. A second trim panel is connected to the first trim panel to cover the gap in a forward position of the backrest relative to the seat cushion.

Abstract: A hybrid power train structure for off-road vehicles (ATVs, UTVs and SSVs) uses an internal combustion engine (“ICE”) rotating a crankshaft through a continuously variable transmission (“CVT”) as a primary source of locomotion torque, but also includes a driving/generator motor which, in certain established conditions, can either provide an additional or alternative source of locomotion torque or can harvest electricity from the torque created by the internal combustion engine. The driving/generator motor is an axial flux motor of small size for its relative torque output, which can either be directly coupled to the CVT output shaft or, when additionally used as a starter motor for the ICE in an automatic ICE starting and stopping routine.