Abstract: Provided is a charging system, including at least one group of charging sets, where each charging set includes a master charging pile and a plurality of slave charging piles, and the master charging pile is respectively connected to the plurality of slave charging piles; and a cloud server, where the cloud server is configured to be in a communication connection with the master charging pile in the at least one group of charging sets; and the master charging pile is connected to a power distribution controller of a power grid and is configured to acquire a power parameter from the power distribution controller, to determine a distributable power for each charging set. The problem of not being able to calculate a charging power in the case of network disconnection may be solved; moreover, a configuration may be updated when a network is connected.

Abstract: An interface and improved data intake and query system is described herein that allows users to define metrics and that aggregates metric values regardless of the level at which a metric is defined and/or the level at which metric values are available. The improved data intake and query system can initialize a sketch in response to a user providing one or more metric definitions. The initialized sketch includes one or more instances, where each instance produces an output and collects metric value(s), appends the metric value(s) to the output, and forwards the appended data to a process function downstream in a data processing pipeline. The process function separates the output and the metric value(s), sending the output further downstream in the data processing pipeline and sending the metric value(s) to a parallel process function that sits outside the data processing pipeline. The parallel process function can persist the metric value(s).

Abstract: Disclosed are a wireless device authentication method, a system, a wearable medical device, and a product. The wireless device authentication method includes: responding to an authentication request from the target device to generate a first encrypted packet, and sending the first encrypted packet to the target device; receiving a second encrypted packet generated by the target device by modifying the data in the first encrypted packet after verifying the decrypted first encrypted packet has passed authentication; and determining that the target device has passed authentication when the second encrypted packet meets pre-set conditions, and responding to an encrypted instruction sent by the target device. The pre-set conditions include that the keys corresponding to the second encrypted packet and the first encrypted packet are the same and the second encrypted packet has passed integrity authentication.

Abstract: To improve the performance of certain multivalent metal electrodes, the electrodes can be treated prior to use in an electrochemical cell by applying a solution comprising an acid to a surface of a multivalent metal electrode, then removing excess solution comprising the acid and drying the surface of the multivalent metal electrode. The resulting electrode has an outer interphase layer comprised of a hydrated hydroxychloride comprising the multivalent metal, where the interphase layer has a thickness of less than 5 ?m.

Abstract: Disclosed is a configuration for managing the organization of data tables in cloud-based storage. The configuration receives metrics for data processing operations on the data table. Metrics include at least one of a size of the data table, a size of each file in the data table, and metadata describing the data table. The configuration automatically executes a cost-benefit analysis based on the one or more metrics for each candidate maintenance operation in a plurality of candidate maintenance operations. The configuration automatically selects a maintenance operation from the candidate maintenance operations to automate based on the cost-benefit analysis of the one or more candidate maintenance operations. The selected maintenance operation is automated and scheduled on the data table.

Abstract: A sending method, a receiving method, an apparatus, a system, a device, and a storage medium. The receiving method includes: obtaining an encoded data block, where the encoded data block includes a plurality of data blocks, a plurality of first parity bits, and an FEC parity bit, the plurality of first parity bits are in one-to-one correspondence with the plurality of data blocks, and the FEC parity bit corresponds to the plurality of data blocks; and then checking the corresponding data blocks based on the plurality of first parity bits and/or the FEC parity bit, to obtain a decoding result of the encoded data block.

Abstract: A method for deployment of machine-learning based operators within a query is described. For this embodiment, a sequence of operators associated with a query is identified, which includes at least a first operator and at least a second operator. The second operator is configured to perform operations, in accordance with a machine learning (ML) component, on data received as input from execution of the first operator. Schemas associated with the machine learning component is retrieved along with schemas associated with other operators within the sequence. Compatibility between at least an output schema associated with the first operator and an input schema associated with the second operator associated with the ML component is determined. Thereafter, a portion of the sequence of operators including at least the second operator and another operator of the sequence of operators successive to the second operator may be stored within a data store for subsequent use.

Abstract: This disclosure provides vaccines and compositions based on SARS-COV-2 S protein, and specifically relates to recombinant SARS-COV-2 spike protein (Sprotein) and mRNA and DNA coding thereof. This disclosure also relates to recombinant plasmid comprising DNA sequence encoding recombinant S protein. This disclosure further relates to composition comprising the recombinant S protein and/or mRNA mentioned above, mRNA-carrier particle such as lipid nanoparticle (LNP), and composition such as a vaccine composition.

Abstract: Disclosed herein is a method that supports queries deploying operators based on multiple programming languages at least through determining schema compatibility between neighboring operators within a query. Upon receipt of a query, a sequence of operators of the query is identified, where the sequence of operators includes at least two neighboring operators including a first operator and a second operator representing a machine learning model. By determining schema compatibility between at least the first and second operators, the method either alerts a user to schema incompatibility before attempting to execute the query or determine that the schemas are compatible such that the query may be executed without the occurrence of errors due to schema incompatibility between neighboring operators. Advantageously, the method enables the integration of a machine learning model into the query while still ensuring schema compatibility.

Abstract: This application provides a video classification method, including: obtaining a video comprising a plurality of video frames; obtaining a visual signal feature sequence corresponding to the video using a first submodel in a video classification prediction model, each visual signal feature corresponding to a respective video frame in the video; obtaining an audio signal feature sequence corresponding to the visual signal feature sequence of the video using a second submodel in the video classification prediction model, each audio signal feature corresponding to a respective visual signal feature in the visual signal feature sequence; generating a target signal feature sequence according to the visual signal feature sequence and the audio signal feature sequence; and predicting a video type of the video based on a classification prediction result obtained from applying the target signal feature sequence to a third submodel in the video classification prediction model.

Abstract: This application provides an apparatus and method for detecting tab folds, and an image analyzer. The apparatus for detecting tab folds includes: a first image obtaining module, configured to obtain a first image of a first lateral face of tabs of a battery cell; a second image obtaining module, configured to obtain a second image of a second lateral face of the tabs, where the second lateral face is different from the first lateral face; and an image analyzer, configured to obtain, based on the first image, a first number of layers of the tabs corresponding to the first lateral face, and obtain, based on the second image, a second number of layers of the tabs corresponding to the second lateral face, and determine, based on at least one of the first number of layers or the second number of layers, whether the tabs are in a folded state.

Abstract: Embodiments of this application disclose a method for training an image caption model, the image caption model including an encoding convolutional neural network (CNN) and a decoding recurrent neural network (RNN). The method includes: obtaining an image eigenvector of an image sample by using the encoding CNN; decoding the image eigenvector by using the decoding RNN, to obtain a sentence used for describing the image sample; determining a matching degree between the sentence obtained through decoding and the image sample and a smoothness degree of the sentence obtained through decoding, respectively; and adjusting the decoding RNN according to the matching degree and the smoothness degree.

Abstract: A method for manufacturing a plurality of semiconductor structures is provided. The method includes the operations as follows. A first hybrid bonding layer is formed over a first wafer including a plurality of first memory structures. A second hybrid bonding layer is formed over a second wafer including a plurality of control circuit structures. The memory structures and the control circuit structures are in contact with the first and the second hybrid bonding layers, respectively. The first wafer and the second wafer are bonded through a first hybrid bonding operation to connect the first and the second hybrid bonding layers, thereby obtaining a first bonded wafer. At least the first wafer, the second wafer, the first hybrid bonding structure, and the second hybrid bonding structure are singulated to obtain the plurality of semiconductor structures. A method for manufacturing a system in package (SiP) is also provided.

Abstract: Embodiments of this application disclose a microexpression-based image recognition method and apparatus, and a related device.

Abstract: A nonaqueous electrolyte for a lithium ion battery includes a lithium salt, a first nonaqueous solvent, and an additive mixture comprising a first operative additive of lithium difluorophosphate and a second operative additive of either fluoro ethylene carbonate or vinylene carbonate. A lithium-ion battery includes a negative electrode, a positive electrode comprising NMC with micrometer-scale grains, a nonaqueous electrolyte having lithium ions dissolved in a first nonaqueous solvent, and an additive mixture having a first operative additive of either fluoro ethylene carbonate or vinylene carbonate and a second operative additive of either 1,3,2-dioxathiolane-2,2-dioxide, another sulfur-containing additive, or lithium difluorophosphate.

Abstract: The present disclosure relates to a Cu—Zn-SSZ-13 molecular sieve composite catalyst and a preparation method thereof. Firstly, in situ synthesis is conducted by an one-step method and the template agent TMAdaOH is removed. Then a processed diatomite filter aid containing a SSZ-13 molecular sieve seed is added to improve the molecular sieve yield and thus reduce the cost. Finally, the Cu—Zn-SSZ-13 molecular sieve composite catalyst is prepared by substituting ammonium nitrate with ammonium dihydrogen phosphate or diammonium hydrogen phosphate through a counter-ion exchange method. The reaction performance of the catalyst in a temperature range of 100-600° C. is better than that of a SSZ-13 catalyst prepared by an ion exchange method and a Cu-SSZ-13 molecular sieve catalyst prepared by an one-step method, and the yield of the synthetic object is increased by 40%.

Abstract: Disclosed are a pole piece labeling control method and device, electronic equipment, and a storage medium. The method includes: acquiring a pole piece image, including a pole piece mark hole image, of a target pole piece; determining a defect detection result according to the pole piece image; determining a first distance according to the pole piece mark hole image; determining a second distance according to the first distance; determining a labeling delay of the target pole piece according to the second distance; and controlling the labeling of the target pole piece according to the labeling delay and the defect detection result. The real-time position of the pole piece transferred on a compression roller is identified through the pole piece mark hole image, so that the accuracy of the labeling delay is improved, and the labeling position based on the labeling delay is more accurate.

Abstract: An optical detection device includes a detection workspace, a first image acquisition device, a second image acquisition device, a detection light source, and a conveyor. The detection workspace is configured to hold a target workpiece under detection. The first image acquisition device is configured to acquire an image of the target workpiece along a first direction. The second image acquisition device is configured to acquire an image of the target workpiece along a second direction different from the first direction. The detection light source is configured to provide detection light for the first image acquisition device and the second image acquisition device. The conveyor is configured to convey the target workpiece into or out of the detection workspace. An optical axis of at least a part of the detection light provided by the detection light source is coaxial with an optical axis of the first image acquisition device.

Abstract: A detection method includes acquiring a first shot image of a long-side weld of a battery cell under detection by using a first structured light camera on a long side of the battery cell under detection, acquiring a second shot image of a short-side weld of the battery cell under detection by using a second structured light camera on the short side of the battery cell under detection, detecting a defect of the long-side weld of the battery cell under detection based on the first shot image, and detecting a defect of the short-side weld of the battery cell under detection based on the second shot image.

Abstract: The present application discloses an appearance inspection device and an apparatus for manufacturing a battery cell. The appearance inspection device for inspecting a battery cell comprises: a first camera assembly comprising a first camera and a first light source, the first light source being configured to provide illumination to the first camera, and the first camera being configured to acquire images of a first surface of the battery cell when the first surface is covered by an insulating layer; and a second camera assembly comprising a second camera and a second light source, the second light source being configured to provide illumination to the second camera, and the second camera being configured to acquire images of the first surface when at least a partial region of the first surface is not covered by the insulating layer.