Abstract: This application relates to a video encoding method performed at a computer device. The method includes: obtaining an input video frame; determining a processing parameter corresponding to the input video frame; selecting, from candidate processing manners according to the processing parameter, a target processing manner corresponding to the input video frame, the candidate processing manners comprising a full-resolution processing manner and a downsampling processing manner; and encoding the input video frame according to the target processing manner, to obtain encoded data corresponding to the input video frame. Therefore, the target processing manner of the input video frame can be flexibly selected, and the input video frame is encoded according to the target processing manner, to adaptively adjust a resolution of the input video frame, and improve video encoding quality.

Abstract: The present disclosure discloses a pulling type movement structure, and a toy and a massager using the same. The pulling type movement structure includes a shell, a motor, a cam, a battery, a control circuit board, and a vibration head; the motor, the cam, the battery, and the control circuit board are respectively arranged inside the shell; the cam is arranged on an output component of the motor; a position, corresponding to a vibration head insertion opening, on the shell is provided with a rotating shaft; an extending end of the vibration head is inserted into the shell from the vibration head insertion opening of the shell, and a pulling slot is formed in an end part of the extending end of the vibration head; the rotating shaft of the shell is inserted into a rotating shaft hole of the vibration head.

Abstract: The present disclosure provides methods and systems for detecting the state of a bone conduction hearing device. The bone conduction hearing device comprises at least a microphone, a speaker, a feedback analysis unit, and a signal processing unit. The speaker may generate a third sound based on a first signal, wherein the first signal may be generated by the signal processing unit. The microphone may receive the third sound and generate a feedback signal. The feedback analysis unit may determine a feedback path transfer function from the speaker to the microphone based on the feedback signal and the first signal, obtain at least one preset feedback path transfer function, and compare the feedback path transfer function and the at least one preset feedback path transfer function. The signal processing unit may determine the state of the bone conduction hearing device based on a comparison result.

Abstract: A socket strengthener, a board-to-board socket, and a board-to-board connector assembly. The socket strengthener (60) comprises a main body part (61), top surface cover parts (66) and lateral outer peripheral wall cover parts (64) formed by extending from the main body part (61), elastic arm parts (65) curving backwards from the ends of the lateral outer peripheral wall cover parts (64) and extending to the inner sides of the lateral outer peripheral wall cover parts (64). The top surface cover parts (66), on the side adjacent to the elastic arm parts (65) bend downward to form guide parts (662). Viewed from top to bottom, the guide parts (662) do not overlap with the elastic arm parts (65), and the bottoms of the guide parts (662) are lower than the tops of the elastic arm parts (65). The board-to-board socket comprises a socket body, a socket terminal, and the socket strengthener. The board-to-board connector assembly comprises the board-to-board socket and a plug matched therewith.

Abstract: The present disclosure relates to an acoustic output device. The acoustic output device may include an earphone core, a controller, a power source, and a flexible circuit board. The earphone core may include at least one low-frequency acoustic driver configured to output sounds from at least two first guiding holes and the at least one high-frequency acoustic driver configured to output sounds from at least two second guiding holes. The controller may be configured to direct the at least one low-frequency acoustic driver to output the sounds in a first frequency range and direct the at least one high-frequency acoustic driver to output the sounds in a second frequency range. The power source may be configured to provide power supply for the earphone core. The flexible circuit board may be configured to connect the earphone core with the power source.

Abstract: The disclosure relates to a method for warehouse storage-location monitoring, a computer device, and a storage medium. The method includes the following. Video data of a warehouse storage-location area is obtained, and a target image corresponding to the warehouse storage-location area is obtained based on the video data, where the warehouse storage-location area includes an area of a storage-location and an area around the storage-location. The target image is detected based on a category detection model, to determine a category of each object appearing in the target image, where the category includes at least one of: human, vehicle, or goods. A detection result is obtained by detecting a status of each object based on the category of each object, where the detection result includes at least one of: whether the human enters the warehouse storage-location area, vehicle status information, or storage-location inventory information.

Abstract: This present disclosure discloses an acoustic output device comprising: an acoustic driver that includes a diaphragm and a magnetic circuit structure, wherein a side of the diaphragm facing away from the magnetic circuit structure forms a front side of the acoustic driver, a side of the magnetic circuit structure facing away from the diaphragm forms a back side of the acoustic driver, the diaphragm vibrates so that the acoustic driver radiates sound outward from its front and back, respectively; a housing structure configured to carry the acoustic driver, wherein the back side of the acoustic driver and the housing structure form a back cavity, and different side walls of the back cavity are connected by a curved structure; the housing structure includes at least one sound outlet hole, the at least one sound outlet hole is acoustically coupled with the back cavity.

Abstract: The present invention provides a preparation method for synthesizing S-nicotine from glutarate, including: reacting nicotinate with glutarate in the presence of a base catalyst to obtain 5-carbonyl-5-(pyridin-3-yl)pentanoic acid, reacting with an amination reagent to obtain 5-oxo-5-(pyridin-3-yl)pentanamide, performing Hofmann degradation on to obtain 4-amino-1-(pyridin-3-yl)butanone, reducing a carbonyl group of the 4-amino-1-(pyridin-3-yl)butanone by using (+)-B-diisopinocampheyl chloroborane to obtain (S)-4-amino-1-(pyridin-3-yl)butan-1-ol, performing chlorination and cyclization to obtain S-demethylnicotine, and finally performing amine methylation to obtain S-nicotine.

Abstract: An energy storage device and a method thereof are provided. The power transfer circuit transfers a DC voltage provided by a battery module into an AC output voltage to provide the AC output voltage to an output end of the power transfer circuit for providing power to a load. When the AC output voltage is at a default phase, the power transfer circuit is disabled in a default period, and whether the energy storage device may be shut down is determined according to a voltage difference of the AC output voltage sensed by a sensing circuit during the default period.

Abstract: A data processing method, apparatus, and device based on a smart contract, and a storage medium can improve execution speed of a smart contract and reduce a running time. A contract call request used for executing a transaction service is acquired. An asynchronous variable statement corresponding to the asynchronous variable function name in a smart contract is also acquired. A first memory and a second memory associated with the first variable parameter are queried based on the first asynchronous variable statement. A data read request is transmitted to the first memory and a separate data read request is transmitted to the second memory in an asynchronous request manner indicated by the first asynchronous variable statement to obtain first to-be-read data and second to-be-read data used for executing the transaction service.

Abstract: Disclosed are an interface display method, a device and a storage medium. The method includes: obtaining a color-blind color of a current user and a current color replacement mode; determining a target color corresponding to the color-blind color when the current color replacement mode is a user-defined mode; and replacing the color-blind color displayed on a display interface of a smart device with the target color when the display interface is activated, and displaying the target color on the display interface. The present application determines the color-blind color of the current user and replaces the color-blind color with the target color which is determined in a specific color replacement mode, and finally no color-blind colors are displayed on the display interface, the viewing experience of the achromate is improved.