Abstract: A synchronous rectification control system and method for a quasi-resonant flyback converter are provided. The control system includes a switching transistor voltage sampling circuit configured to sample an output terminal voltage of the switching transistor to obtain a sampled voltage of the switching transistor; a sampling calculation module configured to obtain a dead-time based on the sampled voltage of the switching transistor and a preset relationship, the preset relationship being a correspondence between the duration of the sampled voltage of the switching transistor being below a first preset value and the dead-time during an on-time of a switching cycle of the switching transistor, the dead-time being a time from when the switching transistor is turned off to when the synchronous rectification transistor is turned on; and a control module configured to receive the dead-time and control switching of the synchronous rectification transistor based on the dead-time.

Abstract: An intelligent course planning method and controller for unmanned surface vehicle are provided, an overall optimization from starting point to end point of course deflection angle is achieved based on an optimization principle of approximate dynamic programming; an optimization of minimization of the course deflection angle and a control signal is achieved based on a quadratic form cost function and a performance index by designing a virtual radial basis function neural network and a least square method, a target course expression is obtained, and a stability and a degree of convergence are ensured through a positive-definite constraint of the Hessian matrix of the performance index. Compared with the related art, an overshoot of course deflection and the control signal is reduced, an optimization of flight and steering energy consumption is achieved, and completely data-driven for intelligent course planning for unmanned surface vehicle and a high-accuracy feedback adjustment are achieved.

Abstract: An array substrate is provided. The array substrate includes a node connecting line in a same layer as a respective voltage supply line, connected to a first capacitor electrode and a semiconductor material layer. An orthographic projection of a first anode on a base substrate at least partially overlaps with an orthographic projection of a node connecting line in a respective first subpixel. An orthographic projection of a second anode on the base substrate at least partially overlaps with an orthographic projection of the node connecting line in a respective second subpixel. An orthographic projection of a third anode on the base substrate at least partially overlaps with an orthographic projection of the node connecting line in a respective third subpixel. An orthographic projection of a fourth anode on the base substrate at least partially overlaps with an orthographic projection of the node connecting line in a respective fourth subpixel.

Abstract: The disclosure relates to the field of information processing, and more particularly to a method, electronic device and storage medium for information processing. According to the embodiments of the disclosure, the method of information processing includes: establishing an association relationship between a first application and a first file, the first application being a program for processing a service processing flow; determining service processing flow information of the first application; and displaying first information corresponding to the service processing flow information at a predetermined position in the first file. The method of information processing provided by the embodiments of the disclosure enables users to conveniently obtain service processing flow information related to the first file through the first file, and facilitates subsequent audit and review of the file or the corresponding service processing flow.

Abstract: The disclosure relates to the field of computers, and particularly to a method, apparatus, electronic device and storage medium for information processing. The method of information processing provided in the present disclosure includes: at a time before the end of a service processing flow about a first file, determining a save strategy for the first file in response to a user operation, so that the first file is saved based on the save strategy after the end of the service processing flow.

Abstract: A method of data processing for an application includes displaying service data in a first display area of a first application display interface; displaying first online document information in a second display area of a first application display interface, the first online document carrying a file required for processing the service data; and processing the service data in response to a first operation initiated based on the content carried by the first online document. The method of data processing for an application displays business data and the first online document in the first display area and the second display area respectively, and operates the business data based on the first operation initiated by the content carried by the first online document, so that the processing method of business data is associated with the content carried by the first online document, thereby improving the flexibility and convenience of business data processing.

Abstract: The disclosure provides a method, apparatus, terminal and storage medium for service processing based on an online document. The method includes: determining a first application; establishing an association between the first application and a first online document; and performing a first processing on the first online document according to the information related to the first application. The information processing method provided by embodiments of the present disclosure can process the first online document based on the information related to the first application, so that the data processing of the first online document can adapt to the service logic of the first application itself. While fully utilizing the characteristics of openness and easy collaboration of the online document, the online document can reflect or adapt to the service logic, and improve the flexibility and stability of the service.

Abstract: This disclosure provides a method and apparatus, terminal and storage medium for information processing. The method of information processing includes: receiving a first document for processing a business flow, the business flow comprising one or more business nodes; and when a predetermined operation is performed on a content of the first document, determining an associated person associated with at least one business node of the business flow based on the predetermined operation, and sending a notification message to the associated person.

Abstract: An intelligent course planning method and controller for unmanned surface vehicle are provided, an overall optimization from starting point to end point of course deflection angle is achieved based on an optimization principle of approximate dynamic programming; an optimization of minimization of the course deflection angle and a control signal is achieved based on a quadratic form cost function and a performance index by designing a virtual radial basis function neural network and a least square method, a target course expression is obtained, and a stability and a degree of convergence are ensured through a positive-definite constraint of the Hessian matrix of the performance index. Compared with the related art, an overshoot of course deflection and the control signal is reduced, an optimization of flight and steering energy consumption is achieved, and completely data-driven for intelligent course planning for unmanned surface vehicle and a high- accuracy feedback adjustment are achieved.

Abstract: A frequency synthesis system and a frequency generation method of microwave photons based on photoelectric synergy are provided, the system includes an optical frequency comb for generating narrow optical pulse signals with high stability and low phase noise through; an optical frequency doubling/dividing unit for performing frequency doubling or frequency dividing on a repetition frequency of the narrow optical pulse signals output by the optical frequency comb; a photoelectric conversion unit for performing photoelectric conversion on input optical pulse signals, and outputting an electrical frequency comb; a second electrical filter unit for filtering input electrical signals; and a second electrical amplifying unit for performing power amplification on the input electrical signals.

Abstract: A conductive composite material of graphene contains graphene nano-sheets and conjugated copolymers. The conjugated copolymers has alkynyl groups and are in a linear structure and grafted to the graphene nano-sheets. The preparation of conductive composite material includes the steps of: pretreating the graphene nano-sheets with 4-bromobenzenediazonium tetrafluoroborate, and forming the conjugated copolymers in the presence of the pretreated graphene nano-sheets. The conductive composite material of graphene can be uniformly dispersed in an electrode slurry, reduce the internal resistance of an electrode, and improve the electrical conductivity of an electrode. At the same time, the flexible structure associated with the graphene nano-sheets can buffer the volume expansion of the silicon-containing negative materials during charge-discharge cycling. Such a composite material can be in a lithium-ion battery.

Abstract: Herein are disclosed an audio signal processing method and apparatus, an electronic device, and a storage medium. The method includes: obtaining an audio signal acquired by an application while an account logging into the application is in a microphone mute state in a multi-person voice call; obtaining gain parameters, for each of a plurality of audio frames in the audio signal, respectively on a plurality of bands in a first band range; and outputting a prompt message responsive to a determination, based on the gain parameters, that a target voice is contained in the audio signal, the prompt message providing a prompt to disable the microphone mute state of the account.

Abstract: A negative electrode material of the lithium-ion battery, a preparation method therefor and an application thereof, and a lithium-ion battery include the same are provided. The negative electrode material has a core-shell structure. The core has a silicon-containing material while the shell has an organic lithium salt and a porous carbon film, and at least part of lithium ion is intercalated in the porous carbon film. The negative electrode material is prepared by (1) mixing a silicon source and a carbon source, and then calcining the mixture; (2) mixing the calcined product obtained in the step (1) with the organic lithium salt; and (3) subjecting the materials obtained in the step (2) of mixing to vacuum freeze-drying.

Abstract: A silicon-based negative electrode material, a preparation method therefor, and an application thereof in a lithium ion battery are provided. A lithium ion battery contains the silicon-based negative electrode material. The negative electrode material contains a silicon-containing material and a phosphorus-containing coating layer at the surface of the silicon-containing material. The phosphorus-containing coating layer contains a polymer that has polycyclic aromatic hydrocarbon structural segments. The negative electrode material exhibits improved initial coulombic efficiency, reversible charging specific capacity, cycle charging capacity retention and conductivity. When used in the lithium ion battery, the negative electrode material may improve the energy density of the battery.

Abstract: The present disclosure provides a detection system, comprising a client for unloading malicious HTTP traffic and a server for receiving and detecting the malicious HTTP traffic, wherein the server comprises an active label corrector for correcting noisy labels of the malicious HTTP traffic and a multi-field feature extractor for automatically discovering underlying features of the malicious HTTP traffic.

Abstract: The present disclosure provides a detection system, comprising a client for unloading malicious HTTP traffic and a server for receiving and detecting the malicious HTTP traffic, wherein the server comprises an active label corrector for correcting noisy labels of the malicious HTTP traffic and a multi-field feature extractor for automatically discovering underlying features of the malicious HTTP traffic.