Abstract: The present disclosure provides a high-temperature-resistant deep penetration molecular membrane acid copolymer and a preparation method thereof. The copolymer is formed by polymerizing four raw monomers including 2-acrylamido-2-methylpropanesulphonic acid, vinyl phosphonic acid, alkyl dimethylallyl ammonium chloride, and perfluoropolyether acrylate. The method comprises: S1: mixing and stirring solvent oil, an emulsifier, the alkyl dimethyl allyl ammonium chloride, and the perfluoropolyether acrylate to be dispersed homogeneously to obtain an oil phase; S2: mixing and stirring the 2-acrylamido-2-methylpropanesulphonic acid, the vinyl phosphonic acid, a complexing agent, and distilled water, and adjusting pH to obtain an aqueous phase; S3: slowly dropwise adding the aqueous phase to the oil phase; and S4: introducing nitrogen into the water-in-oil emulsion to remove oxygen, then adding an initiator and carrying out a heating polymerization reaction to obtain copolymer emulsion (i.e.

Abstract: An information interaction method, a computer-readable storage medium and a communication terminal are disclosed. The information interaction method is applied to a local terminal, and includes: in a process of a video call with a remote terminal, in response to a first interaction instruction, performing split-screen display on a display screen of the local terminal to form at least a first split screen for displaying an interface of the video call and a second split screen for displaying a shopping interface; in response to a first selection instruction, acquiring an image of a commodity corresponding to the first selection instruction, with the first selection instruction being an instruction of selecting the commodity from the shopping interface; and displaying a synthesized image obtained by performing image synthesis on the image of the commodity and at least a part of images in the interface of the video call.

Abstract: The present application provides a rocket apparatus and a method for changing an electrical environment in a thunderstorm cloud. A corona probe and an atmospheric electric field detector analyzes and obtains, based on spin angular velocity information of a rocket and inclination attitude information of the rocket that are provided by a gravity gyroscope, accurate strength of a three-dimensional electric field and accurate polarity of a charge in the thunderstorm cloud. A charge-neutralizing agent module externally releases a charged agent whose polarity is opposite to the charge in the thunderstorm cloud, to consume the charge in the thunderstorm cloud via neutralization between a heterocharge carried by the charged agent and the charge in the thunderstorm cloud.

Abstract: The present disclosure provides a call method and terminal, and a non-transitory computer-readable storage medium. The call method includes: receiving or initiating, by a first terminal, a call request to establish a call with a second terminal; detecting, by the first terminal, at least one of the following: a current task being executed by the first terminal, whether there is one or more third terminals capable of assisting in the call, and a current task being executed by a third terminal; and selecting whether a display interface of the first terminal displays a call assisting option according to the current task being executed by the first terminal and/or the current task being executed by the third terminal; wherein the call assisting option is used to prompt a user to select to answer the call with the second terminal through the assistance of the third terminal.

Abstract: A space launch system and method through electromagnetic pushing. The space launch system comprises an energy storage subsystem, an energy conversion subsystem, a linear motor subsystem, and a control maintenance subsystem. The space launch system converts the electric energy into an electromagnetic force. Through the electromagnetic force, a rocket is pushed to be accelerated to a certain speed along an electromagnetic launching track to realize the launching of the rocket.

Abstract: A device control method is provided. In the method, a first message is received from a first device of a device messaging group. The first device is associated with a first identifier in the device messaging group. The first message indicates at least one of a state of the first device or detected environment information. A second message is generated based on the first message received from the first device. The second message is sent to a second device of the device messaging group. The second device is associated with a second identifier in the device messaging group.

Abstract: A device control method is described. A processing circuitry of a device obtains a first message that is indicated as from a first device associated with a first device identifier in an instant messaging group and determines, according to the first message, control-related information corresponding to at least a second device associated with a second device identifier in the instant messaging group. The processing circuitry further generates, according to the control-related information, a device control command corresponding to the second device, transmits the device control command to the second device, and receives a second message that is sent by the second device. The second message includes a device control command execution result regarding the second device executing the device control command.

Abstract: An axial flux motor having reduced spatial harmonics including a rotor with a plurality of magnets. A rotor shaft is coupled to the rotor. A stator faces the rotor and an air gap defined between the rotor and the stator. The stator includes a plurality of electromagnetic components defining a plurality of magnetic poles. The electromagnetic components include a plurality of posts, a plurality of slots, and a plurality of distributed electrically conductive windings disposed in and spanning across nonadjacent slots of the plurality of slots. At least one electrically conductive winding has a winding pitch span of greater than or equal to about 3 to less than or equal to about 20. The axial flux motor may include two rotors and one stator or alternatively two stators and one rotor. Such axial flux motors have short pitch provide desirable reduced spatial harmonics to enhance motor performance.

Abstract: Embodiments of this application provide a photovoltaic power conversion apparatus. The photovoltaic power conversion apparatus includes a first housing, a power component, at least one second housing, and at least one wiring terminal. The first housing forms a first accommodation cavity, and the power component is fixedly disposed in the first accommodation cavity. The at least one of the second housing forms a second accommodation cavity, and the at least one second housing is disposed outside a connection area of a first side wall of the first housing by using an installation wall. The wiring terminal sealingly penetrates through a part of the connection area of the first side wall, a first end of the wiring terminal is located in the first accommodation cavity, and a second end of the wiring terminal is located in the second accommodation cavity.

Abstract: The present disclosure provides hybrid stator core components for an axial flux motor stator and methods for making the same. The hybrid stator core component includes a molded soft magnetic composite material and a laminated component. In one variation, a laminated insert comprising a plurality of insulated layers is non-releasably seated within a molded soft magnetic composite material. In another variation, a hybrid stator core component has a molded soft magnetic composite core and a laminated shell comprising a plurality of layers disposed around at least a portion of the molded soft magnetic composite core.

Abstract: An image recognition method includes: performing image detection on an image to be recognized to obtain at least one face detection result, at least one operational part detection result, and at least one trunk detection result, each face detection result including one face bounding box, each operational part detection result including one operational part bounding box, and each trunk detection result including one trunk bounding box; respectively combining each of the at least one trunk detection result with each face detection result, to obtain at least one first result combination; respectively combining each trunk detection result with each operational part detection result, to obtain at least one second result combination; and associating the at least one first result combination with the at least one second result combination, to obtain an association result.

Abstract: A space launch system and method through electromagnetic pushing. The space launch system comprises an energy storage subsystem, an energy conversion subsystem, a linear motor subsystem, and a control maintenance subsystem. The space launch system converts the electric energy into an electromagnetic force. Through the electromagnetic force, a rocket is pushed to be accelerated to a certain speed along an electromagnetic launching track to realize the launching of the rocket.

Abstract: An object recognition method is provided. The method includes obtaining speech information of a target object in a current speech environment and position information of the target object; extracting voiceprint feature from the speech information based on a trained voiceprint matching model, to obtain voiceprint feature information; obtaining a voice confidence value corresponding to the voiceprint feature information; and obtaining an object recognition result of the target object based on the voice confidence value, the position information, and the voiceprint feature information.

Abstract: Disclosed are a target tracking method and apparatus, an electronic device, and a storage medium. The method includes: detecting a to-be-processed image to obtain a hand detection result; in response to the hand detection result including a bounding box of hand, determining a hand in the bounding box with a hand pose conforming to a hand pose in a target gesture as a target hand; and tracking the target hand in a video stream according to the target hand in the to-be-processed image, where images in the video stream and the to-be-processed image are obtained by capturing a same target area, and the images in the video stream are captured after the to-be-processed image is captured.

Abstract: The application discloses a low-altitude air route planning and design method, device and storage medium for UAV with multi-objective constraints. First of all, initial air route points and air route network are set based on the urban low-altitude demand, then constraints such as conflict constraints, three zones constraints, and traffic demand constraints are introduced, the optimal multi-objective function such as the airspace capacity, operation cost, operation safety and so on is realized by moving air route points and reconstructing air route network, and the low-altitude air route networks of corresponding UAV is designed for different low-altitude environments.

Abstract: An image recognition method includes: performing image detection on an image to be recognized to obtain at least one face detection result, at least one operational part detection result, and at least one trunk detection result, each face detection result including one face bounding box, each operational part detection result including one operational part bounding box, and each trunk detection result including one trunk bounding box; respectively combining each of the at least one trunk detection result with each face detection result, to obtain at least one first result combination; respectively combining each trunk detection result with each operational part detection result, to obtain at least one second result combination; and associating the at least one first result combination with the at least one second result combination, to obtain an association result.

Abstract: Disclosed are a target tracking method and apparatus, an electronic device, and a storage medium. The method includes: detecting a to-be-processed image to obtain a hand detection result; in response to the hand detection result including a bounding box of hand, determining a hand in the bounding box with a hand pose conforming to a hand pose in a target gesture as a target hand; and tracking the target hand in a video stream according to the target hand in the to-be-processed image, where images in the video stream and the to-be-processed image are obtained by capturing a same target area, and the images in the video stream are captured after the to-be-processed image is captured.

Abstract: The present disclosure provides hybrid stator core components for an axial flux motor stator and methods for making the same. The hybrid stator core component includes a molded soft magnetic composite material and a laminated component. In one variation, a laminated insert comprising a plurality of insulated layers is non-releasably seated within a molded soft magnetic composite material. In another variation, a hybrid stator core component has a molded soft magnetic composite core and a laminated shell comprising a plurality of layers disposed around at least a portion of the molded soft magnetic composite core.

Abstract: An axial flux motor having reduced spatial harmonics including a rotor with a plurality of magnets. A rotor shaft is coupled to the rotor. A stator faces the rotor and an air gap defined between the rotor and the stator. The stator includes a plurality of electromagnetic components defining a plurality of magnetic poles. The electromagnetic components include a plurality of posts, a plurality of slots, and a plurality of distributed electrically conductive windings disposed in and spanning across nonadjacent slots of the plurality of slots. At least one electrically conductive winding has a winding pitch span of greater than or equal to about 3 to less than or equal to about 20. The axial flux motor may include two rotors and one stator or alternatively two stators and one rotor. Such axial flux motors have short pitch provide desirable reduced spatial harmonics to enhance motor performance.

Abstract: A device monitors, by using a microphone array, a sound generated by a monitoring target. In response to detecting a sound signal by the microphone array, the device determines a sound source direction corresponding to detected sound signal according to a sound phase difference obtained by each microphone in the microphone array. The device performs infrared detection in the sound source direction by using the infrared transceiver. The device determines a distance between the monitoring target and the infrared transceiver in the sound source direction according to an infrared detection result obtained by the infrared transceiver. The device generates location information of the monitoring target according to the sound source direction and the distance.