Abstract: An internal circulation type clathrate hydrate-based cold storage system and method are provided in the field of industrial refrigeration. The internal circulation type clathrate hydrate-based cold storage system includes a water chilling unit, a hydrate-based cold storage tank, a gas disturbance device, a concentration measurement system, a heat exchange system, a direct-current power supply and circuit control system, and a system monitoring device. The water chilling unit provides a secondary refrigerant at a low temperature. The secondary refrigerant flows through an evaporator coil in the hydrate-based cold storage tank for a heat exchange. The gas disturbance device induces hydrate nucleation. The concentration measurement system monitors a concentration of a hydrate solution in real time. The heat exchange system is equipped with a finned tube heat exchanger with a fan.

Abstract: The present invention relates to a method of preparing a black phosphorus nanosheet and application, belonging to the technical field of functional material production. In the method, the black phosphorus sheet is used as the electrolytic anode, and an electrochemical reaction system is constructed together with an inert electrode and an alkaline aqueous electrolyte, wherein the alkaline aqueous electrolyte comprises an N-N dimethylformamide solution dissolved with epoxy resin. In alkaline aqueous electrolyte, the prepared black phosphorus nanosheet structure tends to be more stable, not easy to be damaged and the oxidation degree is reduced. Under alkaline conditions, it is conducive to improve the intercalation and stripping effect of black phosphorus material of anode and make the black phosphorus exfoliation more complete.

Abstract: Systems and methods for constructing a traction inverter of a vehicle are described. The traction inverter includes a positive bus bar and a negative bus bar that couple a capacitor and to a plurality of switches. The capacitor is formed from a plurality of individual capacitors that are stacked together.

Abstract: The present application discloses an optimizer learning method and apparatus, an electronic device and a readable storage medium, which relates to the field of deep learning technologies. An implementation solution adopted by the present application during optimizer learning is: acquiring training data, the training data including a plurality of data sets each including neural network attribute information, neural network optimizer information, and optimizer parameter information; and training a meta-learning model by taking the neural network attribute information and the neural network optimizer information in the data sets as input and taking the optimizer parameter information in the data sets as output, until the meta-learning model converges. The present application can implement self-adaptation of optimizers, so as to improve generalization capability of the optimizers.

Abstract: A large model-based method of generating a text, a method of training a text generation model, a device, and a medium are provided, which relate to a field of artificial intelligence technology, specifically to fields of deep learning, natural language processing and large model technologies. The large model-based method of generating a text includes: acquiring a memory state for a text to be processed, where the memory state is generated based on a previous text of the text to be processed; determining an embedding feature of the text to be processed as an initial hidden state, and processing the memory state and the initial hidden state by using a first attention mechanism to obtain an updated hidden state; and generating a subsequent text for the text to be processed based on the updated hidden state.

Abstract: A signal transmission method and an apparatus are provided. In the method, a terminal device receives first indication information, the first indication information is for determining at least one of a mapping parameter and a widely linear processing matrix; and the terminal device sends a second signal, where the second signal is obtained by converting a first signal based on at least one of the mapping parameter and the widely linear processing matrix, and the first signal includes m streams of first data to be sent. The mapping parameter includes a first mapping parameter of the m streams of first data and a second mapping parameter of conjugates of the m streams of first data, and the widely linear processing matrix includes a first widely linear processing matrix of m streams of second data and a second widely linear processing matrix of conjugates of the m streams of second data.

Abstract: An automotive propulsion system has a transmission including an output shaft, a variable voltage converter including an inductor disposed within a housing of the transmission such that transmission fluid within the housing contacts the inductor to cool the inductor, and a controller that maintains a magnitude of current through the inductor to less than a limit value that is defined by a speed associated with the output shaft and a switching frequency of the variable voltage converter.

Abstract: The present invention discloses a Fe—Al intermetallic compound filter element and a preparation method thereof, which relates to the field of powder metallurgy and filtration technology. In view of the drawback in the prior art that using a fiber felt as a filtration layer reduces stability and reliability of a filter, the present invention provides an Fe—Al intermetallic compound filter element, which comprises: at least two filter-element parts, and a rebar connecting the at least two filter-element parts transversely by means of welding, wherein, the filter-element parts each comprises at least two segments of Fe—Al intermetallic compound filter-element powder tube and a connector connecting the at least two segments of Fe—Al intermetallic compound filter-element powder tube end-to-end by means of welding; and wherein, the at least two segments of Fe—Al intermetallic compound filter-element powder tube each comprises a substrate framework and a surface filtration membrane.

Abstract: This application provides a keyboard apparatus. The keyboard module is stacked on the base and is in sliding fit with the base. The first plate is rotatably connected to one end of the base, where a first rotating part is formed between the first plate and the base. The second plate is rotatably connected to one end of the first plate that is away from the base. A second rotating part is formed between the second plate and the first plate. The third plate is rotatably connected to one end of the keyboard module that is close to the first plate, and is fastened to the second plate. The third plate is configured to carry a tablet device, where a third rotating part is formed between the third plate and the keyboard module. At least one of the rotating parts of the keyboard apparatus is provided with a damping structure.

Abstract: A method for generating a dialogue state includes: acquiring a target dialogue state of a previous round of dialogue and dialogue information of a current round of dialogue; generating an initial dialogue state of the current round of dialogue according to the target dialogue state of the previous round of dialogue and the dialogue information of the current round of dialogue; and generating a target dialogue state of the current round of dialogue according to the initial dialogue state of the current round of dialogue and the dialogue information of the current round of dialogue.

Abstract: Embodiments of this application provide a communication method and an apparatus. The method includes: receiving first data; sending second data through a plurality of antenna ports, where the second data is obtained by performing, by a network device, distribution matching, forward error correction encoding, and modulation on the first data based on a bit mapping relationship; and sending indication information to a terminal device, where the indication information is used by the terminal device to determine the bit mapping relationship, and the bit mapping relationship is used by the terminal device to perform distribution dematching on the second data to obtain an estimated value of the first data.

Abstract: A decoding method, an encoding method, a decoder, and an encoder are provided. The decoding method includes the following. A bitstream is decoded to obtain a first transform coefficient of a current block. A first transform is performed on the first transform coefficient to obtain a residual block of the current block. The current block is predicted based on a first prediction mode and a second prediction mode which correspond to a geometric partitioning mode (GPM) to obtain a prediction block of the current block. A reconstructed block of the current block is obtained based on the prediction block of the current block and the residual block of the current block.

Abstract: A video coding method and apparatus are provided in the disclosure. In the disclosure, a weight derivation mode and K prediction modes are used as a combination, so that a weight derivation mode and K prediction modes used by a current block are indicated in the form of a combination in a bitstream. In this case, at a decoding end, a first index is obtained by decoding the bitstream, the first index indicates a first combination consisting of one weight derivation mode and K prediction modes, a first weight derivation mode and K first prediction modes included in the first combination are determined according to the first index, and a current block is predicted according to the first weight derivation mode and the K first prediction modes to obtain a prediction value of the current block.

Abstract: A decoding method, an encoding method, a decoder, and an encoder are provided. The decoding method includes the following. A bitstream is decoded to obtain a first transform coefficient of a current block. A first transform is performed on the first transform coefficient of the current block to obtain a second transform coefficient of the current block. A second transform is performed on the second transform coefficient to obtain a residual block of the current block. The current block is predicted based on a first prediction mode and a second prediction mode which correspond to a geometric partitioning mode (GPM) to obtain a prediction block of the current block. A reconstructed block of the current block is obtained based on the prediction block of the current block and the residual block of the current block.

Abstract: A decoding method includes: decoding a bitstream to obtain a first transform coefficient of a current block; performing first transform on the first transform coefficient to obtain a second transform coefficient of the current block; performing second transform on the second transform coefficient to obtain a residual block of the current block; predicting the current block based on a first intra prediction mode and a second intra prediction mode that are derived from a prediction mode derivation mode to obtain a prediction block of the current block; and obtaining a reconstructed block of the current block based on the prediction block of the current block and the residual block of the current block. The first transform is introduced on a basis of the prediction mode derivation mode and the second transform in the present application, so as to improve a decompression efficiency of the current block.

Abstract: A video decoding method, including: obtaining a first index by decoding a bitstream, where the first index is used to indicate a first combination, the first combination includes a weight derivation mode and K prediction modes, and K is a positive integer greater than 1; determining a first weight derivation mode and K first prediction modes included in the first combination according to the first index; and obtaining a prediction value of a current block by predicting the current block according to the first weight derivation mode and the K first prediction modes.

Abstract: A power inductor such as a variable voltage converter power inductor having a temperature sensor embedded therein is disclosed. In one or more embodiments, the sensor may be disposed between the core and the coil or winding. The sensor may be positioned in the cavity of a bobbin or the core itself.

Abstract: Disclosed in the present application are a coding method, a decoding method, an encoder and a decoder. The coding method includes: selecting a plurality of coded related blocks corresponding to a current block from a predetermined area, the predetermined area comprising an area having a correlation with the current block; on the basis of information of the plurality of related blocks, determining a context index parameter of a first syntax element of the current block; and on the basis of a context corresponding to the context index parameter, coding the first syntax element of the current block.