Abstract: Provided are a transmission method and device, and a computer-readable storage medium. The transmission method includes: sending, by a first communication node, a notification frame, where the notification frame is used for instructing at least one second communication node to send a first physical layer protocol data unit (PPDU); and receiving, by the first communication node, the first PPDU sent by the at least one second communication node.

Abstract: Disclosed are an external, numerically controlled, rapid reconfigurable surface mold and forming method thereof In this mold, an external shape-adjusting component is composed of a height-regulating rod, a motor, and a sliding guide rail module. The height-regulating rod is connected to the sliding guide rail module, and the motor is coaxially connected to the height-regulating rod. In addition, the molding module consists of a plurality of basic body units with the same structure, the lower end of the basic body unit is installed in the mold box, the upper end of the basic body unit is matched with the lower end of the height-regulating rod, and the height of the basic body unit is adjustable. Subsequently, in the forming method, driven by the motor and under the action of the force of the lower end of the height-regulating rod, the height-regulating rod moves above the basic body units.

Abstract: An online system hosts a retailer storefront user interface for a third-party retailer that includes content associated with items offered by the retailer for procurement and delivery through the online system. A retailer may provide preferences for where different candidate content is placed in the retailer storefront user interface. The online system applies a machine learning model to the retailer preferences and other contextual information relating to a particular presentation of the retailer storefront user interface to dynamically rank content for different possible placement positions. The ranking scores may relate to predicted performance metrics associated with operations of the online system. Content is then placed in the retailer storefront user interface based on the respective ranking scores.

Abstract: A fuel cell system capable of improving the utilization of a mixed fuel includes a fuel cell, having an anode input terminal, a cathode input terminal, an anode output terminal and a cathode output terminal; a selective separator, having an input end, a hydrogen output end, and an unused gas output end; a hydrogen pump; a purge valve; and a steam trap. The fuel cell system can improve the separation efficiency of a hydrogen gas and reduce the hydrogen concentration of an exhaust gas to less than 4 vol %.

Abstract: A systems and methods for multi-node communication between wireless communication nodes and a single wireless communication device are disclosed herein. In one embodiment, the systems and methods are configured to receive, by a second wireless communication node from a first wireless communication node, a notification frame. The systems and methods can be further configured to perform joint transmission, by the second wireless communication node to a wireless communication device according to the notification frame received from the first wireless communication node. The systems and methods can also be configured to suspend, by the second wireless communication node, contention parameters of the second wireless communication node at the beginning of the transmission to the wireless communication device.

Abstract: The present disclosure provides a memory system with a non-volatile memory that includes a plurality of storage areas. Each storage may include a plurality of first storage groups in a first area and a plurality of second storage groups in a second area. The first area may support physical addressing. The second area may not support physical addressing. A memory controller of the memory system may perform a wear leveling process by swapping a first storage group having a first group write count with a second storage group having a second group write count. The first group write count may be a maximum group write count among a plurality of group write counts corresponding to the plurality of first storage groups. The second group write count may be a minimum group write count among a plurality of group write counts corresponding to the plurality of second storage groups.

Abstract: Disclosed in the embodiments of the present application are a network access method and apparatus for a terminal, an electronic device and a storage medium. The method includes a terminal determining a beam sweeping interval and a sweeping frequency point, and receiving a base station signal sent or forwarded by a satellite; determining the downlink signal quality of the base station according to the base station signal; and if it is determined, according to the downlink signal quality, that the terminal can successfully find a satellite, executing a network access process of the terminal. In the embodiments of the present application, the downlink signal quality of a base station is determined by means of a base station signal sent or forwarded by a satellite; and it is further determined, according to the downlink signal quality, whether a terminal can successfully find a satellite.

Abstract: A network processing system obtains a viewport of a client device for volumetric video and a two-dimensional (2D) subframe of a frame of volumetric video is obtained associated with the viewport. Viewports may be obtained from the client device or be predicted. 2D subframes and reduced resolution versions of frames can be transmitted to the client device. A client device may request volumetric video from the network processing system and provides a viewport to the network processing system. The client device may obtain from the network processing system reduced resolution versions of volumetric video frames and 2D subframes in accordance with the viewport. The client device may determine whether a current viewport matches the viewport associated with the obtained 2D subframe and provides a display based on either that subframe (upon a match) or a 2D perspective of the reduced resolution frame associated with the current viewport (if no match).

Abstract: Disclosed are an apparatus for diagnosing a state of a battery and a method thereof. The apparatus diagnoses the state of the battery with high accuracy in a short time period by obtaining first state information of the battery from a battery management system (BMS), obtaining second state information of the battery from electrochemical impedance spectroscopy (EIS) equipment, obtaining third state information of the battery from a history management server, and diagnosing the state of the battery based on the first state information, the second state information and the third state information.

Abstract: A plasma processing apparatus includes: a plasma chamber; a radio frequency (RF) power supply configured to generate plasma in the plasma chamber; an electromagnet configure to apply a magnetic field to the plasma; and a pulse current generator configured to provide a pulse current to the electromagnet, wherein each period of the pulse current includes a first section and a second section subsequent to the first section, and the pulse current generator is further configured to: provide, at the first section, the pulse current to the electromagnet in a first direction to generate the magnetic field, and provide, at the second section, the pulse current to the electromagnet in a second direction opposite to the first direction to reduce intensity of the magnetic field generated at the first section.

Abstract: A scalable platform for generating time-frequency-multiplexed cluster states and utilizing them for large-scale quantum computing. Kerr microcombs and continuous-variable (CV) quantum information are used to formulate a one-way quantum computing architecture that can accommodate hundreds of simultaneously addressable entangled optical modes multiplexed in the frequency domain and an unlimited number of sequentially addressable entangled optical modes in time domain. One-dimensional, two-dimensional, and three-dimensional CV cluster states can be deterministically produced using robust integrated photonic circuit technology is leveraged that is readily available and experimentally viable.

Abstract: Provided are a metadata processing method and apparatus, and a computer-readable storage medium. In the metadata processing method, a management server obtains metadata to be processed, wherein the metadata to be processed includes a directory structure and file attributes; and according to a load condition of at least one first node for storing the file attributes and based on a rule that file attributes of a same directory are stored in a same first node, the management server stores, in the at least one first node, the file attributes of directories in the directory structure in a distributed manner.

Abstract: A memory cell includes patterning a first trench extending through a first conductive line, depositing a memory film along sidewalls and a bottom surface of the first trench, depositing a channel layer over the memory film, the channel layer extending along the sidewalls and the bottom surface of the first trench, depositing a first dielectric layer over and contacting the channel layer to fill the first trench, patterning a first opening, wherein patterning the first opening comprises etching the first dielectric layer, depositing a gate dielectric layer in the first opening, and depositing a gate electrode over the gate dielectric layer and in the first opening, the gate electrode being surrounded by the gate dielectric layer.

Abstract: The disclosure provides a viewing angle control module including a first liquid crystal panel, a first polarizer, a second polarizer, and a phase retarder. The first liquid crystal panel includes a first substrate, a second substrate, a first alignment layer, a second alignment layer, a first liquid crystal layer, a first electrode layer, and a second electrode layer. A second alignment direction of the second alignment layer is antiparallel to a first alignment direction of the first alignment layer. The first electrode layer has multiple electrode patterns arranged at intervals along a first direction and extending along a second direction. A first absorption axis of the first polarizer is perpendicular to a second absorption axis of the second polarizer. An included angle between the first absorption axis and the first alignment direction is 45 degrees. A display apparatus including the viewing angle control module is also provided.

Abstract: A bearing device in a radial flow adsorber with a gas flow guide function includes a bearing platform, a supporting cylinder, a flow guide pipe, an annular bottom plate, a limiting block and a supporting frame, wherein an upper portion of the bearing platform is filled with adsorbent, an interior of a lower portion of the bearing platform is connected with the annular bottom plate through the supporting cylinder, a backing plate is arranged between the bearing platform and the supporting cylinder, on the supporting cylinder or the annular bottom plate is opened a hole and arranged a plurality of flow guide pipes for guiding gas flow, the annular bottom plate is placed on the supporting frame, the limiting block is arranged on the supporting frame, and the supporting frame is fixed on a cylinder body or a lower head of the adsorber by welding.

Abstract: A minimum IC operating voltage searching method includes acquiring a corner type of an IC, acquiring ring oscillator data of the IC, generating a first prediction voltage according to the corner type and the ring oscillator data by using a training model, generating a second prediction voltage according to the ring oscillator data by using a non-linear regression approach under an N-ordered polynomial, and generating a predicted minimum IC operating voltage according to the first prediction voltage and the second prediction voltage. N is a positive integer.

Abstract: In an apparatus for correcting a voltage of a battery cell and a method thereof. The apparatus includes a voltage sensor configured for measuring voltages of a plurality of battery cells, and a controller which is configured for determining an amount of voltage change of each battery cell corresponding to a preset discharge current, detects target battery cells whose identification numbers have preset intervals while the amount of voltage change does not exceed a threshold value, and corrects the amount of voltage change of each target battery cell.

Abstract: A power management integrated circuit (PMIC) soldered onto a printed circuit board, includes: a first output stage circuit and a second output stage circuit. In a separate power supply configuration, first and second current inflow pins of the first and second output stage circuits are soldered to first and second current inflow printed lines, respectively, wherein the first and second current inflow printed lines are not directly electrically connected to each other; and, first and second current outflow pins of the first and second output stage circuits are soldered to first and second current outflow printed lines respectively, wherein the first and second current outflow printed lines are not directly electrically connected to each other. In a cooperation power supply configuration, the first and second current inflow pins are both soldered to a common current inflow printed line of the PCB, to be electrically connected with each other.

Abstract: A method includes obtaining a plurality of training samples that each include a respective speech utterance and a respective textual utterance representing a transcription of the respective speech utterance. The method also includes fine-tuning, using quantization and sparsity aware training with native integer operations, a pre-trained automatic speech recognition (ASR) model on the plurality of training samples. Here, the pre-trained ASR model includes a plurality of weights and the fine-tuning includes pruning one or more weights of the plurality of weights using a sparsity mask and quantizing each weight of the plurality of weights based on an integer with a fixed-bit width. The method also includes providing the fine-tuned ASR model to a user device.

Abstract: A semiconductor memory device includes a bit line extending in a first direction on a substrate, an active pattern on the bit line, a word line on a first sidewall of the active pattern and extending in a second direction, a back gate electrode on a second sidewall of the active pattern and extending in the second direction, a gate isolation pattern on the first sidewall of the active pattern and including a low-k pattern extending in the second direction, and a data storage pattern connected to the second surface of the active pattern. The word line is between the active pattern and the gate isolation pattern, and a vertical distance between the bit line and the word line is greater than a vertical distance between the bit line and the low-k pattern.