Abstract: A backlight module includes a light guide plate having a bottom surface, a light exit surface, and a light incident surface a substrate located on a side of the bottom surface away from the light exit surface; first light-emitting devices located on a side of the substrate proximate to the bottom surface second light-emitting devices disposed opposite to the light incident surface; and a prism sheet located on a side of the light guide plate away from the substrate. The first light-emitting devices are configured to emit first light, so that the first light passes through the light guide plate and the prism sheet to become light of a first viewing angle. The prism sheet is configured to cooperate with the light guide plate to modulate second light emitted by the second light-emitting devices into light of a second viewing angle which is smaller than the first viewing angle.

Abstract: A thermal-power power electronic direct-hung energy-storage plant backup power system includes a thermal-power grid connection startup/standby unit, a power electronic energy-storage switching unit and a thermal-power plant unit. The thermal-power grid connection startup/standby unit is connected to the power electronic energy-storage switching unit and the thermal-power plant unit, respectively. The power electronic energy-storage switching unit is connected to the thermal-power plant unit.

Abstract: A method for synchronization in a wireless system. In the method, a physical broadcast channel (PBCH) includes one or more bits, wherein the one or more bits indicate additional system information when a frequency of the wireless system is within a frequency range up to a predefined frequency and indicate a location of a slot group in a synchronization signal burst set when the frequency of the wireless system is above the predefined frequency, and wherein the slot group comprises at least one synchronization signal block and the synchronization signal burst set includes the slot group.

Abstract: A speaking user selecting method and apparatus, an electronic device, a storage medium, a computer program product, and a computer program. The method comprises: receiving a first request sent by a first terminal device, the first request being used for determining a speaking user in a user group, wherein the user group comprises at least two users to be selected, and each user to be selected corresponds to one second terminal device; determining a random selection model corresponding to the first request, the random selection model being used for representing a policy for randomly determining a speaking user from the user group; and determining a speaking user from the at least two users to be selected according to the random selection model, and sending identification information of the speaking user to the first terminal device and the second terminal device.

Abstract: An example includes a housing, a stator assembly, a rotor, and a self-cooling structure. The stator assembly is mounted on the housing and fitted around the rotor, the rotor is rotatably housed within the housing, the self-cooling structure is attached to the rotor, and the self-cooling structure is located at the stator assembly. The self-cooling structure comprises an outer cylinder, an inner cylinder, and a plurality of blades, wherein the plurality of blades are radially connected between the inner cylinder and the outer cylinder. A ventilation slot is formed between the outer cylinder and the inner cylinder, with multiple end-face air intake holes formed at the ventilation slot, and side exhaust holes are formed between adjacent two blades, with the end-face air intake holes being in communication with the side exhaust holes. In this way, it is capable of actively dissipating heat within the motor without altering its form.

Abstract: A secondary battery, comprising a positive electrode plate, a negative electrode plate and a separator provided between the positive electrode plate and the negative electrode plate; wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer provided on at least one surface of the negative electrode current collector, the negative electrode plate comprises one or more planar areas and one or more curved areas, the negative electrode active material layer of at least one of the planar areas comprises an active material A, and the negative electrode active material layer of at least one of the curved areas comprises an active material B, and the expansion rate of the active material B is greater than that of the active material A.

Abstract: A speaking user selecting method and apparatus, an electronic device, a storage medium, a computer program product, and a computer program. The method comprises: receiving a first request sent by a first terminal device, the first request being used for determining a speaking user in a user group, wherein the user group comprises at least two users to be selected, and each user to be selected corresponds to one second terminal device; determining a random selection model corresponding to the first request, the random selection model being used for representing a policy for randomly determining a speaking user from the user group; and determining a speaking user from the at least two users to be selected according to the random selection model, and sending identification information of the speaking user to the first terminal device and the second terminal device.

Abstract: The present application provides an electrode assembly and a preparation method therefor, a secondary battery, and a power consuming device. A reserved space is formed between at least one surface of a separator and a corresponding electrode plate, and a spacing D of the reserved space tends to increase in a preset direction of the electrode plate from either edge of the separator to a middle of the separator, so that the reserved space is of a structure with a large middle and two small ends. In this way, during cycle of charging and discharging, when the electrode plate expands at a middle part more than at two edges thereof in its own width direction, the electrode plate is better accommodated in the reserved space.

Abstract: An all-terrain vehicle includes a frame; four wheels; a suspension system; and a prime mover assembly. The frame includes auxiliary main beams which extend upwardly from a mid-height of one of the mid-rear pillars in a front tube section, and then angles from 120 to 170° to a longitudinal portion welded along its length to the upper main beam. The front tube sections each define a triangular shape together with the mid-rear pillars and the upper main beams. The all-terrain vehicle includes a front mounting bracket and two cargo rack structures, a cooling fan cover which supports several components of the cooling system, rear suspension swing arm mount plates formed of sheet metal, a passenger seat that elastically allows backrest lean angle changes, and a dual action brake caliper.

Abstract: A construction method for a radiation-proof concrete hole reserved split bolt includes: 1) mounting a hole reserved sleeve; 2) mounting an inclined recoverable split bolt; 3) mounting an inclined split bolt; 4) fixing the inclined recoverable split bolt and an inclined split bolt main body; 5) pouring concrete, and dismantling related components; 6) plugging the inclined split bolt main body; and 7) plugging the hole reserved sleeve. According to the construction method, the hole reserved sleeve is obliquely arranged, the inner side of the hole reserved sleeve is sprayed with a radiation-proof coating with the functions of reducing radiation ray reflection and absorbing certain radiation rays, and in addition, after the construction of a pipeline or a line in the hole reserved sleeve is finished, the openings at both ends of the hole reserved sleeve are plugged with a radiation-proof mortar incorporated with a micro-expanding agent and a waterproof agent.

Abstract: A backlight module, and a display device and a driving method thereof, which relate to the technical field of displaying. The backlight module includes a substrate, and a plurality of light sources and a plurality of reflector cups arranged at one side of the substrate; each reflector cup includes a lower port, an upper port, a cup body connected between the lower port and the upper port, and a plurality of micro structures arranged on an inner wall surface of the cup body; the plurality of light sources are separately located at the lower ports of the different reflector cups; and light-emitting surfaces of the light sources face the upper ports; the micro structures have a plurality of reflecting surfaces: the reflecting surfaces are configured for reflecting light emitted by the light sources.

Abstract: A security gateway for validating ingress traffic and/or a response to the ingress traffic in a computer network, and a method for validating the same. The security gateway includes a proxy server and a gateway agent. The proxy server receives the ingress traffic and/or the response and forwards the ingress traffic and/or the response to the gateway agent. The gateway agent validates the ingress traffic and/or the response as valid ingress traffic and/or valid response or invalid ingress traffic and/or invalid response based on predetermined validation requirements. The proxy server further receives the valid ingress traffic from the gateway agent and forwards the valid ingress traffic to a backend service and/or receives the valid response from the gateway agent and forwards the valid response to a client device or blocks the invalid ingress traffic and/or invalid response.

Abstract: An object emotion analysis method and apparatus and an electronic device are provided. The method includes: extracting a static facial feature and a dynamic feature from multimedia data associated with a target object, wherein the dynamic feature includes one or more of an expression change feature, a sound feature and a language content feature: inputting the static facial feature and the dynamic feature into a pre-trained object emotion analysis model, fusing the static facial feature and the dynamic feature by the object emotion analysis model, and outputting an emotion analysis result.

Abstract: The embodiments of the present disclosure provide a lens, a lens array, a displaying module and a displaying device. The lens includes a main lens body and a light emitting member; the main lens body is a conical housing having an inner cavity, and the light emitting member is disposed at a first end of the main lens body; a first quadric surface is disposed in the inner cavity of the main lens body; a second quadric surface is disposed on an inner wall of the main lens body; the first quadric surface is convex toward the first end of the main lens body, and the second quadric surface is convex toward a second end of the main lens body.

Abstract: A system and method for lateral vehicle detection is disclosed. A particular embodiment can be configured to: receive lateral image data from at least one laterally-facing camera associated with an autonomous vehicle; warp the lateral image data based on a line parallel to a side of the autonomous vehicle; perform object extraction on the warped lateral image data to identify extracted objects in the warped lateral image data; and apply bounding boxes around the extracted objects.

Abstract: A method for cell selection is provided. The cell switching method may include the following steps. The UE may determine whether a serving cell is a platform cell or a tunnel cell. Then, the UE may determine whether to restrain from switching to a neighbor cell based on at least one parameter associated with the serving cell in response to the serving cell being the platform cell or the tunnel cell.

Abstract: This application provides an electrode plate slitting method and apparatus, an electronic device, and a storage medium. The method includes: obtaining a length of an electrode plate to be cut; and when it is determined that a slitting parameter meeting a preset condition exists based on the length of the electrode plate, cutting the electrode plate to be cut based on the slitting parameter to obtain the electrode plate after cutting. The preset condition includes: the slitting parameter is able to be used for cutting the electrode plate to be cut and a length of each electrode plate roll obtained after cutting is within a preset range. This decreases the probability of obtaining an electrode plate roll with an inappropriate length at the end of the cutting, reducing the waste in the electrode plate.

Abstract: The invention discloses a method for synthesizing 1,7-naphthyridine derivatives, which relates to the technical field of synthesizing pharmaceutical intermediates and organic chemical intermediates, wherein the method includes: (1) 2-chloro-3-amino-pyridine being used as Compound I as a starting material, and protecting an amino group to prepare Compound II; (2) the Compound II reacting with an aldehydation reagent under alkaline conditions to obtain Compound III; (3) cyclizing the Compound III with acrylate compounds under the action of Lewis acid to prepare compound IV.

Abstract: Embodiments of this application provide an audio data processing method and apparatus, and a sound box system, which are related to the field of audio technologies, and improve sound quality of an audio playing device. The sound box system includes a full-frequency sound box and a low-frequency sound box. The full-frequency sound box is physically connected to the low-frequency sound box by using a first fastening part of the full-frequency sound box and a second fastening part of the low-frequency sound box. Furthermore, the full-frequency sound box communicates with the low-frequency sound box by using a first communication part of the first fastening part and a second communication part of the second fastening part, where the first fastening part and the second fastening part are a group of paired connection parts, and the first communication part and the second communication part are a group of paired communication parts.