Abstract: A method, an apparatus, a device, and a medium for converting video data are provided. In a method, a color space of an original video is set to a default value in response to determining that the color space of the original video is null. A first color value of the first pixel is determined, for a first pixel in a first frame of a plurality of frames in the original video, in response to determining that a color range of the original video is null. The color range of the original video is determined based on the first color value. The original video is converted into a target video based on the color space and the color range.

Abstract: A communication method includes: generating a sensing reference signal based on a first reference signal sequence, where the first reference signal sequence is obtained by encrypting a reference signal sequence based on a shared key; and sending the sensing reference signal, where the sensing reference signal is used to obtain sensing measurement data.

Abstract: A battery cell, a battery, and an electrical apparatus. The battery cell includes a shell, an electrode terminal, an electrode assembly, and an insulating component. The electrode terminal is arranged on the shell. The electrode assembly is accommodated in the shell and includes a tab connected to the electrode terminal. The insulating component connects the electrode terminal and the shell and is used for insulating and separating the electrode terminal from the shell.

Abstract: Implementations for I/O efficient synchronization on a graph database are provided. One example includes a computing system comprising: processing circuitry and memory storing instructions that, during execution, causes the processing circuitry to: implement the graph database using at least: a read-write node and a read-only node operating in cache memory; and a shared storage for data persistence, wherein the shared storage stores a mapping table of the graph database; receive an update query; update the read-write node based on the update query; write, using the read-write node, a set of logs corresponding to the update query to a write-ahead log journal in the shared storage; and retrieve, using the read-only node, the set of logs from the write-ahead log journal.

Abstract: A display substrate is provided. The display substrate includes a base substrate and a plurality of reset signal lines. The base substrate includes a display region, the display region includes a plurality of sub-pixels arranged in array, each of the plurality of sub-pixels includes a pixel driving circuit and a light-emitting element. The plurality of reset signal lines extend in a first direction, the plurality of reset signal lines include a plurality of first reset signal lines for providing a first reset signal and a plurality of second reset signal lines for providing a second reset signal, and one of the plurality of first reset signal lines and one of the plurality of second reset signal lines are respectively connected to pixel driving circuits of a plurality of sub-pixels located in a same row.

Abstract: The present invention discloses a trusted, private, verifiable and traceable data flow method and system, which are applied to an environment composed of a plurality of data usage modules, a cloud service module, a plurality of oracle modules, a plurality of data providing module modules and a blockchain platform. The system generates a system parameter and a key through the oracle modules and each module generates a parameter and a key thereof. The data providing modules upload data, and the data is forwarded to the cloud service module for storage after being verified for authenticity by the oracle modules. The data usage modules propose a data usage request, and a cloud service module responds by returning data after verification. After data leakage occurs, the cloud service module extracts the data watermark for accountability.

Abstract: This application provides a communication method and a related device, to increase a success rate of a terminal device in receiving multicast data. In addition, a quantity of users served by a multicast session can be increased, and a quantity of multicast session users that can be served in a single cell can be also increased. In the method, a first device determines, based on first information, that a first terminal device prefers to receive multicast data in a first state, where the first state includes a radio resource control (radio resource control, RRC) connected (RRC CONNECTED) state or an RRC inactive (RRC INACTIVE) state; and the first device sends second information to a network device, where the second information indicates that the first terminal device prefers to receive the multicast data in the first state.

Abstract: Provided is a display panel, including: a base substrate, including a display area and a peripheral area surrounding the display area; a plurality of pixel units, disposed in the display area; a barrier structure, disposed in the peripheral area; at least one first power line, disposed in the peripheral area; and, a row drive circuit, disposed in the peripheral area, wherein orthographic projections of any two of the following structures on the base substrate are at least partially overlapped with each other: the barrier structure, the at least one first power line, and the row drive circuit.

Abstract: A high-concentration filling slurry of coal gangue and a preparation method thereof is provided. The high-concentration filling slurry of coal gangue includes the following components in parts by mass: 65-85 parts of filling aggregate (including coarse aggregate and fine aggregate), 0.001-0.01 part of suspending agent, 0.001-0.05 part of dispersing agent, 0.01-0.1 part of activating agent, and 0.001 part of solid agent. On this basis, the preparation method of high-concentration filling slurry of coal gangue is provided.

Abstract: The present application relates to an authentication method. The method comprises: transmitting, by a target second device, an authentication request to a first device; wherein the target second device is one of a plurality of second devices.

Abstract: A high-concentration filling slurry of coal gangue and a preparation method thereof is provided. The high-concentration filling slurry of coal gangue includes the following components in parts by mass: 65-85 parts of filling aggregate (including coarse aggregate and fine aggregate), 0.001-0.01 part of suspending agent, 0.001-0.05 part of dispersing agent, 0.01-0.1 part of activating agent, and 0.001 part of solid agent. On this basis, the preparation method of high-concentration filling slurry of coal gangue is provided.

Abstract: The present application relates to the field of electromagnetic wave imaging technology, and specifically discloses an electromagnetic field imaging method, which mainly comprises: 1. constructing an imaging model; 2. Determining the element number N and the array pose based on the mode requirements for imaging and the actual size of the antenna, and calculating the circular array radius corresponding to each mode separately; 3. Controlling the system according to the array pose determined in step 2, the phase-shifting parameters of each element antenna, and the radius of the circular array; 4. Receiving the echoes corresponding to each pose with the receiving antenna, and forming a two-dimensional (2D) echo matrix based on the frequency and the mode; 5. Processing the echo signal to obtain a distance-azimuth 2D imaging result.

Abstract: A vehicle thermal management system and associated operation includes using a heat pump system, an electric drive system coolant loop and a battery system coolant loop. The heat pump system includes a compressor, a four-way switching valve, an indoor heat exchanger, a first expansion valve, a first one-way valve, an outdoor heat exchanger, a second expansion valve, a second one-way valve, a second check valve, a chiller, and a gas-liquid separator. The electric drive system coolant loop includes a first water pump, a first three-way valve and a radiator. The battery system coolant loop includes a second water pump, a second one-way valve and a second three-way valve. The thermal management system performs efficient cabin heating with heat recovery of the battery system and electric drive system at low temperatures. The vehicle thermal management system can effectively cool the cabin, the battery system, electric drive system at high temperatures.

Abstract: The present invention provides an arcing detection method and system, in which an AI model derives an AI score from current data and preliminarily determines whether a current signal of interest is arcing based on a comparison between the AI score and an AI threshold. It preliminarily determines whether the determination is false. These two determination steps enable more accurate arcing detection. When a false determination count becomes greater than or equal to a false determination count threshold, the AI model is retrained and dynamically updated to adapt itself to the current situation. This dispenses with the need for deployment of multiple static AI models in the system, which requires larger storage memory. The AI model can adapt itself to the current situation without needing manual commissioning of parameters, effectively reducing manpower costs. Further, this dispenses with the need for regular interrogation of environmental changes, reducing the system's task overhead.

Abstract: A handover method and a communication apparatus are provided. The method includes: A target access network device obtains a first message and information used for transmitting multicast data, where the first message is used for requesting to establish a resource for handing over a terminal device to the target access network device. The target access network device sends a second message, where the second message indicates the established resource on the target access network device; receives a first packet from a user plane network element, where the first packet corresponds to the information used for transmitting the multicast data; and sends the first packet to the terminal device. In this way, the terminal device is handed over from a source access network device to the target access network device when the terminal device receives the multicast data.

Abstract: A display panel includes a pixel driving circuit, where the pixel driving circuit includes a driving transistor (T3) and a first transistor (T1), a first electrode of the first transistor (T1) is connected to a gate of the driving transistor (T3), a second electrode thereof is connected to a first initial signal line (Vinit1), the driving transistor (T3) is a P-type low temperature polysilicon transistor, and the first transistor (T1) is an N-type oxide transistor. The display panel further includes: a base substrate, a second conductive layer, a second active layer, a third conductive layer, and a fifth conductive layer.

Abstract: A current collector comprises a current collector body, provided with a first side and a second side which are oppositely arranged, an opening passing through the first side and the second side being formed in the current collector body; and a blocking structure, which is arranged at the opening and is used for preventing solid particles from passing through the opening from the first side to move to the second side. The blocking structure facilitates an electrolyte to enter, via the current collector, a space above or below the current collector inside a casing, thus ensuring that the electrolyte wets an end of an electrode assembly and increasing the internal space utilization of the casing, and additionally, the blocking structure can prevent metal particles generated during a welding process of the current collector from entering the electrode assembly.

Abstract: The present application discloses two anti-GDF15 neutralizing monoclonal antibodies and uses thereof. The variable regions of the light chain and heavy chain of the antibodies G1 and G2 with neutralizing activity are provided. Anti-GDF15 mouse monoclonal antibodies were prepared by the hybridoma technology, anti-GDF15 hybridoma cell lines capable of stable secretion with high specificity were screened out, ascites were prepared to obtain high-specificity and high-affinity anti-GDF15 monoclonal antibodies and two anti-GDF15 monoclonal antibodies with neutralizing activity were identified for the first time by constructing an antibody neutralization detection system.

Abstract: The present application discloses a battery cell, a battery, and an electric apparatus. The battery cell includes a housing, an electrode terminal, and an insulating member. The housing has a first wall, where the first wall has a first through hole. The electrode terminal is disposed in the first through hole, and along a first direction, the electrode terminal has a first end, where the first direction is parallel to a thickness direction of the first wall. At least a portion of the insulating member is disposed between the electrode terminal and a wall of the first through hole, and the insulating member connects the electrode terminal and the first wall. Along the first direction, a projection of the first end does not overlap with a projection of the insulating member. The technical solutions provided by the present application can improve the reliability of the battery.

Abstract: This application provides a data transmission method, apparatus, and system, and is applied to the field of communication technologies. The data transmission method provided in this application includes: A terminal device receives a connection release message sent by a first network device, where the connection release message includes first information, the first information indicates the terminal device, and the first information is used to identify the first network device within a first range; and the terminal device sends a connection setup request message to a second network device, where the connection setup request message includes second information, the second information is used to identify the first network device within a second range, and the second range is less than the first range.