Abstract: The present disclosure relates to a crystal of a borate derivative, a method for preparing same, and use thereof. Specifically, the present disclosure provides a crystal of a compound of formula I, a method for preparing same, and use thereof.

Abstract: A method, apparatus, device and storage medium for volume adjustment are provided. A method for volume adjustment includes: determining context information associated with a second media content during presentation of a first media content, the second media content being configured to be presented after the first media content; determining a processing strategy for a volume of the second media content based on at least one of the context information and reference information associated with the volume adjustment; and configuring the volume of the second media content based on the processing strategy.

Abstract: Methods, systems, and apparatuses are described herein for efficiently identifying and processing sensitive data. A computing device may receive text content, such as one or more words. The computing device may select characters of that text content by identifying, using regular expressions corresponding to sensitive data categories, matches and select various characters including and around such matches. The computing device may provide the selected characters as input to a machine learning model trained to identify sensitive data, and that trained machine learning model may output information about a sensitivity of the characters. Such output might be used to modify all or portions of the text content.

Abstract: Provided is a method for encoding control. The method includes: acquiring an estimated bandwidth corresponding to a transmission link and a transmission buffer size corresponding to a transmission queue, and determining an encodable bitrate based on the estimated bandwidth, the transmission buffer size, predetermined delay limit information, and predetermined bitrate control information; acquiring a single-frame image size corresponding to encoding processing by an encoder, and determining a budget frame rate based on the encodable bitrate and the single-frame image size; and acquiring a second capture frame data stream by adjusting a frame rate of a captured first capture frame data stream based on the budget frame rate.

Abstract: A battery manufacturing process includes: acquiring a battery to be treated and injecting an electrolyte into the battery; and charging the battery before sodium in the battery is reduced at a negative electrode. In this application, the battery is charged before sodium in the battery is reduced at the negative electrode. In the process of charging the battery, water may receive electrons at the negative electrode and undergo a reduction reaction, producing hydrogen gas and hydroxide; or water may decompose in the electrolyte to generate hydrogen ions, and the hydrogen ions may receive electrons at the negative electrode to undergo a reduction reaction, producing hydrogen gas. In this way, water in the battery is removed. After removing water, sodium is reduced at the negative electrode to generate elemental sodium metal.

Abstract: A method for charging a traction battery and a battery management system, which can improve the performance of a traction battery, are disclosed. The method for charging the traction battery is applied to a battery management system BMS of the traction battery, where the method includes: in a charging process of the traction battery, obtaining a state parameter of the traction battery, where the state parameter includes at least one of the following parameters: a state of charge SOC, a state of health SOH, and a temperature; determining an SOC interval value and a discharging parameter corresponding to discharging of the traction battery based on the state parameter of the traction battery, where the discharging parameter includes at least one of the following parameters: a discharging time, a discharging current, and a discharging waveform.

Abstract: Provided are a traditional Chinese medicine composition for treating cardiorenal syndrome and cardiac failure and a method for preparing same. The traditional Chinese medicine composition is prepared from the following raw materials: 3 to 20 parts of Cinnamomi ramulus, 3 to 25 parts of Atractylodis macrocephalae rhizoma, 3 to 25 parts of Jujubae fructus, 6 to 45 parts of Astragali radix, 2 to 20 parts of Panacis majoris rhizoma, 3 to 30 parts of Paeoniae rubra radix, 6 to 25 parts of Spatholobi caulis, 6 to 25 parts of Ginkgo folium, 6 to 35 parts of Poria, 3 to 20 parts of Zingiberis rhizoma recens, 2 to 25 parts of Citri fructus, 2 to 15 parts of Nigellae semen, 2 to 20 parts of Inulae flos, and 3 to 25 parts of Alismatis rhizoma.

Abstract: Provided are a method for charging a traction battery and a battery management system. The method for charging the traction battery is applied to a battery management system, where the method includes: obtaining an SOH of the traction battery; in a charging process of the traction battery, obtaining an SOC of the traction battery; determining an SOC interval value corresponding to discharging or stopping being charged of the traction battery based on the SOH of the traction battery; and when the SOC of the traction battery changes by the SOC interval value, controlling the traction battery to discharge or stop being charged. Through the technical solution, in the charging process of the traction battery, the discharging or the stopping being charged of the traction battery can be controlled to reduce the risk of lithium precipitation in the traction battery and improve the safety performance of the traction battery.

Abstract: Provided is a method for processing video calls. The method includes: determining a layer bit rate corresponding to each frame layer in video data sent by a transmitter, wherein a plurality of video frames in the video data are organized into a plurality of frame layers based on an inter-frame dependency relationship, and the layer bit rate comprises a bit rate acquired by counting bit rates of video frames in a corresponding frame layer; determining, based on uplink bit rates corresponding to a plurality of receivers and a total downlink detected bandwidth, downlink allocated bandwidths corresponding to the receivers; determining, based on the downlink allocated bandwidths corresponding to the receivers and the layer bit rates, target frame layers corresponding to the receivers; and forwarding video data subjected to frame extraction processing for the target frame layers to corresponding receivers.

Abstract: This application provides a positive electrode plate and a preparation method thereof, an electrode assembly, a battery cell, and a battery and pertains to the field of battery technologies. The method for preparing a positive electrode plate includes: providing an adhesive liquid on at least one surface of at least partial to-be-bent position of a positive electrode current collector and curing it to form an adhesive layer, and forming a positive electrode active material layer on at least one surface of the positive electrode current collector having the adhesive layer. The adhesive liquid is first provided on at least one surface of the to-be-bent position of the positive electrode current collector and cured to form the adhesive layer, and then the positive electrode active material layer is formed.

Abstract: A charging method for a battery pack includes sending, by a battery management module of the battery pack, a charging request for a first current to a charging pile for charging, controlling, by the battery management module in response to determining that first-current charging of the battery pack meets a first predetermined condition, the battery pack to perform pulse discharge, and controlling, by the battery management module in response to determining that the pulse discharge of the battery pack meets a second predetermined condition, the battery pack to stop discharging, and sending a charging request for a second current to the charging pile for charging. The second current is less than the first current.

Abstract: Provided is a method for processing video calls. The method includes: determining a layer bit rate corresponding to each frame layer in video data sent by a transmitter, wherein a plurality of video frames in the video data are organized into a plurality of frame layers based on an inter-frame dependency relationship, and the layer bit rate comprises a bit rate acquired by counting bit rates of video frames in a corresponding frame layer; determining, based on uplink bit rates corresponding to a plurality of receivers and a total downlink detected bandwidth, downlink allocated bandwidths corresponding to the receivers; determining, based on the downlink allocated bandwidths corresponding to the receivers and the layer bit rates, target frame layers corresponding to the receivers; and forwarding video data subjected to frame extraction processing for the target frame layers to corresponding receivers.

Abstract: In some embodiments, a method sends a set of first requests for a set of first segments of a video in a playback session. A first protocol from a plurality of protocols is specified in at least one of the set of first requests. The set of first segments is received. The method determines whether to switch from using the first protocol to a second protocol in the playback session based on receiving the set of first segments. When switching to the second protocol, the method sends a second request in the playback session, wherein the second request indicates the second protocol is to be used to send a second segment of the video.

Abstract: In some embodiments, a method receives a first request for a first time window and a first viewport position for a client that is viewing a 360 degree video. A first message is sent to indicate a computing device will push content in a stream for a first one or more time windows other than the first time window. The method pushes content based on the first viewport position for the first time window to the client. A second request is received to change from the first viewport position to a second viewport position. The method sends a second message to indicate the computing device will push content in the stream for a second one or more time windows without canceling the stream. The method pushes content based on the second viewport position in the 360 degree video for the second one or more time windows to the client.

Abstract: In some embodiments, after receiving a first set of video segments of a video, a method starts a first computing instance and receives a video segment of the video using the first computing instance. A measurement is calculated based on receiving the video segment. The method uses the measurement to determine whether the first computing instance should continue to be used to receive video segments in the video or should be terminated to not receive video segments in the video.

Abstract: Methods and systems disclosed herein describe obfuscating plaintext cryptographic material stored in memory. A random location in an obfuscation buffer may be selected for each byte of the plaintext cryptographic material. The location of each byte of the plaintext cryptographic material may be stored in a position tracking buffer. To recover the scrambled plaintext cryptographic material, the location of each byte of the plaintext cryptographic material may be read from the position tracking buffer. Each byte of the plaintext cryptographic material may then be read from the obfuscation buffer and written to a temporary buffer. When each byte of the plaintext cryptographic material is recovered, the plaintext cryptographic material may be used to perform one or more cryptographic operations. The scrambling techniques described herein reduce the likelihood of a malicious user recovering plaintext cryptographic material while stored in memory.

Abstract: An electrode assembly short circuit identification method includes: during charging, according to preset sampling time points, sequentially acquiring a voltage of an electrode assembly at each of the sampling time points; judging whether the electrode assembly has a continuous voltage drop according to the voltage acquired at each of the sampling time points; and determining whether the electrode assembly has a short circuit according to a judgment result.

Abstract: This application relates to a liquid leak detection method and apparatus, a battery control unit, and a battery management system. The method includes: obtaining a gas concentration detection signal output separately by a plurality of target gas sensors in a battery box, where the gas concentration detection signal is used for indicating a measured gas concentration; obtaining position information of each target gas sensor in the battery box; and determining a leaking region in the battery box based on the gas concentration detection signal and the position information of each target gas sensor. To sum up, in an embodiment of this application, the leaking region in the battery box can be located by analyzing the gas concentration detection signals and position information of a plurality of target gas sensors in the battery box, so that prompt information used for indicating the leaking region can be output subsequently.

Abstract: A positive electrode sheet has a straight portion and to-be-bent portions, A thickening layer is disposed on at least one side of a positive electrode current collector of at least some of the to-be-bent portions, the thickening layer is disposed between the positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer covers a surface of the thickening layer is a first positive electrode active material layer, and the positive electrode active material layer located in the straight portion is a second positive electrode active material layer. A ratio of a thickness of the first positive electrode active material layer to a thickness of the second positive electrode active material layer is 20-80%.