Abstract: An audio signal processing method comprises: determining a target encoding rate corresponding to an audio signal; determining a target encoding mode corresponding to the audio signal, the target encoding mode being an encoding mode selected from a plurality of encoding modes, wherein the difference between different encoding modes comprises at least one of the following: different encoding computation complexity and different storage spaces required by encoding; and encoding the audio signal based on the target encoding rate and the target encoding mode to obtain a bitstream signal.

Abstract: An audio encoding method includes: obtaining a plurality of channel groups by performing a grouping on a channel sequence; obtaining a frequency domain coefficient of each frame in each channel by performing a frequency domain conversion on an audio signal in each channel in the channel sequence frame by frame; determining a target transformation matrix corresponding to a channel group in each frequency band in a frequency band set from a transformation matrix set according to the frequency domain coefficient of each channel; obtaining encoded information of the channel group by performing an identical-band decorrelation processing on the frequency domain coefficient of the channel in the channel group based on the target transformation matrix in each frequency band; and obtaining an encoded stream based on the encoded information of the channel group, and sending the encoded stream to a decoder for decoding.

Abstract: A method for processing an audio code stream signal comprises: obtaining a code stream signal; obtaining a decoding control parameter; and generating at least one of a target audio signal or an intermediate format signal by processing the code stream signal.

Abstract: A content processing method including displaying a service interface of a first client, receiving a content input operation on the service interface, displaying an input method panel based on a query sign input by the content input operation, and displaying, in the input method panel, a first query result corresponding to content input by the content input operation.

Abstract: Provided are a fan casing, a blower assembly, and a vehicle air conditioning system, relating to the field of fan technology. The fan casing includes a mounting shell, a heat dissipation member, and a damping assembly. The mounting shell is provided with multiple limiting grooves and a mounting space for holding a stator-rotor assembly. The heat dissipation member includes a heat dissipation plate located inside the mounting shell. The multiple securing portions are disposed at the edge of the heat dissipation plate. The damping assembly includes multiple damping members. The multiple damping members are spaced apart along a first direction. The damping member is disposed in a corresponding limiting groove, and a pocket groove is disposed at the end of the damping member facing the central axis of the mounting shell. Each of the multiple securing portions is limited in a corresponding pocket groove.

Abstract: A power conversion device and a control method thereof are provided. The power conversion device includes a three-level inverter, positive and negative DC terminals, first and second capacitors, a balance circuit, a bidirectional DC-DC converter and a controller. The three-level inverter has two DC terminals coupled to the positive and negative DC terminals respectively. Two terminals of the first capacitor are coupled to the positive DC terminal and a capacitor midpoint respectively. Two terminals of the second capacitor are coupled to the capacitor midpoint and the negative DC terminal respectively. The balance circuit is electrically connected between the positive and negative DC terminals and has a neutral terminal electrically connected to the capacitor midpoint. The bidirectional DC-DC converter is electrically connected to the DC terminals.

Abstract: A method for obtaining a higher-order ambisonics (HOA) coefficient includes obtaining location information of a virtual speaker on a preset spherical surface, where the preset spherical surface includes M circles of longitude and N circles of latitude, and obtaining, based on the location information and a preset reference trigonometric function table, a trigonometric function value corresponding to the location information, where the reference trigonometric function table includes an elevation trigonometric function table and/or an azimuth trigonometric function table, and obtaining an HOA coefficient for the virtual speaker based on the trigonometric function value corresponding to the location information.

Abstract: Provided is a solar energy power supply integrated module unit,. The unit mainly includes: a housing component; a solar panel provided on the housing component, and a light facing surface of the solar panel is exposed from the housing component, a main control module provided inside the housing component and electrically connected to the solar panel; an energy storage battery provided inside the housing component and electrically connected to the main control module; an expansion or load interface, electrically connected to the main control module and/or the energy storage battery, and connected to a load or an expansion or load interface of another integrated solar energy supply and storage module unit; and a shell splicing module configured to connect a housing component of another solar energy power supply integrated module unit.

Abstract: The present disclosure discloses a mineral prospecting prediction method based on multi-agent technology, including: S 11: performing keyword extraction on a mineral-related problem input by a user; S12: establishing a vector database of mineral knowledge texts and a graph database of a mineral knowledge graph, and optimizing the extracted keywords to generate a prompt; S13: constructing a mineral prospecting large model to reason about the prompt, expanding the prompt to obtain a complete statement that professionally reformulates the user's problem; S14: performing multi-task decomposition on the complete statement to obtain a plurality of subtasks, and scheduling the plurality of subtasks to corresponding agents via the graph database of the mineral knowledge graph for stepwise prediction; S15: integrating and feeding back the prediction results of the agents to the user.

Abstract: Implementations provide a feature-sampling method and apparatus, a deep learning method and apparatus, a device, and a medium.

Abstract: A multi-stage adjusting damping valve as well as a shock absorber and suspension system using the damping valve are provided. The multi-stage adjusting damping valve comprises a throttle valve, an overflow valve and a multi-stage pilot valve. The multi-stage pilot valve comprises a mechanical regulating valve and a plurality of high-speed switch electromagnetic valves having different throttle hole diameters. The damping valve is connected between a rod cavity and an oil storage cavity of the shock absorber by means of a middle cavity, and the multi-stage damping rapid regulation of the shock absorber is achieved through high-frequency opening and closing of a high-speed switching electromagnetic valve, and in comparison, the machining precision, the manufacturing cost and the control and calibration difficulty of the present disclosure are greatly reduced.

Abstract: The present disclosure discloses a DNA matrix processing method based on a combined restriction digestion mechanism, including the following steps: constructing a single auxiliary strand-mediated combined restriction digestion mechanism; introducing an auxiliary strand based on the single auxiliary strand-mediated combined restriction digestion mechanism, to obtain a dual auxiliary strands-mediated combined restriction digestion mechanism; and constructing DNA matrix processing and a weighted sum of Boolean matrix multiplication with the dual auxiliary strands-mediated combined restriction digestion mechanism; in which the two auxiliary strands are directly used as elements involved in the matrix processing, and the 2N auxiliary strands are combined into N2 four-pronged restriction digestion structures in the presence of E6 type DNAzymes to cleave N2 substrate strands. Meanwhile, due to high-efficiency catalysis and specific recognition, the E6 type DNAzymes make the matrix processing rapid and accurate.

Abstract: An article of footwear has an upper and a heel cup in a heel region of the upper. The heel cup has a first S-wave shape in a trough region of the heel cup. The first S-wave shape has a first lower concavity that has a greater depth than and a first upper concavity. The heel cup has a has a second S-wave shape in a crest region of the heel cup. The second S-wave shape has a second upper concavity that has a greater depth than a first lower concavity.

Abstract: A cable retraction apparatus comprises a box body, a housing disposed inside the box body, a cable reel configured to wind a cable and rotatably disposed inside the housing, and a guide portion disposed on the housing. The guide portion is configured to separate the cable into a cable outgoing section and a cable retraction section, with a first included angle formed between the cable outgoing section and the cable retraction section. The cable outgoing section extends to an outside of the box body. During cable retraction, the guide portion presses against the cable such that a connector of the cable returns to a preset position.

Abstract: The present disclosure provides a crystal form comprising a compound of Formula (I) and fumaric acid, wherein the crystal form satisfies at least one of the following conditions: (1) a particle size D90 of the active pharmaceutical ingredient ranges from about 5 ?m to about 60 ?m; and (2) a particle size D50 of the active pharmaceutical ingredient does not exceed about 30 ?m; a pharmaceutical composition containing the crystal form, and a method for treating coronavirus-induced diseases by using the crystal form. The crystal form of the present disclosure enables the pharmaceutical composition containing the crystal form to have advantages such as a higher dissolution rate, a higher dissolution, and the like.

Abstract: The present disclosure relates to timing advance indication methods, communication apparatuses, and storage medium. In one example method, a first device determines a quantity of extended bits and a location of the extended bit of a timing advance (TA) instruction based on a subcarrier spacing of a second device. The first device sends the TA instruction to the second device, where the TA instruction includes the extended bit, and a quantity of bits of the TA instruction is greater than 12.

Abstract: Embodiments of the present disclosure provide a data query method, a device, a system, and a storage medium. In this embodiment of the present disclosure, a data schema of target data may be constructed via a query request; and the target data is assembled according to the constructed data schema. In this way, based on the query request and the data schema, a computing operation can be performed on the target data stored in the constructed data schema to obtain a query result, thereby implementing schema on read. This data query manner does not require data to be written according to a fixed data schema, which can improve data flexibility. In addition, schema on read can satisfy computation and analysis requirements and improve data computing capability of the database.

Abstract: The present disclosure presents compositions and methods for improving cognitive function, mood and/or alertness of a human. In one embodiment, a method comprises: administering to the human in need of an improved condition an edible composition, wherein the composition comprises a combination gamma-aminobutyric acid and caffeine. The edible composition has a weight ratio of the total gamma-aminobutyric acid to the total caffeine from about 1:50 to about 10:1.

Abstract: An audio signal encoding method is provided. According to the method, if a current frame is a switching frame, a to-be-encoded downmixed signal and a to-be-encoded residual signal of the subband corresponding to the preset frequency band in the current frame are obtained based on a switch fade-in/fade-out factor of a previous frame, an initial downmixed signal and an initial residual signal of the preset frequency band of the current frame.