Abstract: A three-dimensional (3D) memory device includes a stack structure including interleaved first conductive layers and first dielectric layers, and a channel structure extending through the stack structure along a first direction in contact with a first semiconductor layer at a bottom portion of the channel structure. The channel structure includes a semiconductor channel, and a memory film over the semiconductor channel. The semiconductor channel includes an angled structure, and a first width of the semiconductor channel at the bottom portion of the channel structure below the angled structure is smaller than a second width of the semiconductor channel at an upper portion of the channel structure above the angled structure.

Abstract: Implementations of the present disclosure provide a method, a device, and an apparatus for verifying a veracity of a statement, and a medium. In One method, includes: training data including a statement, an evidence set, and a label are acquired. The statement is divided into a plurality of phrases based on a grammatical analysis of the statement. A phrase verification model is trained based on the training data and the plurality of phrases, so that the phrase verification model determines a plurality of phrase veracities of the plurality of phrases respectively based on the evidence set. A statement verification model is trained based on the training data and the plurality of phrases, so that the statement verification model determines a statement veracity of the statement based on the evidence set, where the plurality of phrase veracities provide an interpretation for the statement veracity.

Abstract: Disclosed is a bis((N-3-ainopropyl)-(N-(3,4-dimethoxyphenylpropionyl)))aminopropylamine phosphate, a crystal form thereof, and a preparation method therefor. Compared to a free base and other salts of bis((N-3-aminopropyl)-(N-(3,4-dimethoxyphenylpropionyl)))aminopropylaine, bis((N-3-aminopropyl)-(N-(3,4-dimethoxyphenylpropionyl)))aminopropylamine phosphate has better stability and higher dynamic solubility, and is more conducive to drug safety and industrial production.

Abstract: The present disclosure relates to a method and system for data retention during power gating. The method includes: sending a power-off request to a shut-off module, the power-off request being configured to instruct the shut-off module to return to-be-stored data; receiving a data saving request sent by each shut-off module, and centrally storing the to-be-stored data carried by each data saving request in a first retention memory; and in response to receiving a data restore signal, returning data stored in the first retention memory to a corresponding shut-off module. The data restore signal is generated after the shut-off module is powered on again.

Abstract: An apparatus for collecting blood or other liquids, comprising a housing (100), a starting device (200), a transmission device (300) and a collection device (400), wherein: the collection device (400) is housed in the housing (100); the transmission device (300) is housed in the housing (100), the transmission device (300) comprises a locking assembly (310) and a driving assembly (320), the driving assembly (320) is connected to the collection device (400), at least part of the starting device (200) is detachably connected to the locking assembly (310), and the locking assembly (310) is configured, to release a movement restriction on the driving assembly (320) after the starting device (200) is inserted, so that the driving assembly (320) actuates the collection device (400) to extend out of the housing (100), and to restrict a movement of the driving assembly (320) after the starting device (200) is removed.

Abstract: A quantization method and apparatus for a text feature extraction model, and a device and a storage medium. The method includes: in a training process of a text feature extraction model, determining, according to a target quantization parameter, a quantization interval corresponding to the target quantization parameter, where the quantization interval includes a part of floating-point values of the target quantization parameter; constructing a mapping relationship between floating-point values and fixed-point values of the target quantization parameter based on the quantization interval, where a floating-point value smaller than a left end point of the quantization interval—is mapped to a quantized minimum fixed-point value, and a floating-point values larger than a right end point of the quantization interval is mapped to a quantized maximum fixed-point value; and performing a quantization operation on the target quantization parameter based on the mapping relationship.

Abstract: This application relates to the field of battery technologies, and in particular, to a binder and a preparation method thereof, and a separator, electrode assembly, battery cell, battery, and electric apparatus containing such binder. The binder includes a core layer structure and a shell layer structure provided on surface of the core layer structure, where the core layer structure includes a polyvinylidene fluoride polymer, and the shell layer structure includes a polyacrylate polymer. Polyvinylidene fluoride is a homopolymer with a crystallinity of about 50%, resulting in insufficient adhesion force.

Abstract: A body assembly of a vehicle, and a vehicle. The body assembly of a vehicle includes: a body main unit wherein the body main unit is provided with a mounting opening; a battery pack shielding the mounting opening, wherein the battery pack is configured to form at least part of a floor of the body assembly; and a sealing assembly and a front surrounding plate, wherein in the length direction of the body main unit, the front surrounding plate is located on the front side of the sealing assembly, the front surrounding plate is connected to the sealing assembly to form an annular structure, and at least part of the sealing assembly and at least part of the front surrounding plate are both located between the body main unit and the battery pack so as to seal a gap between the body main unit and the battery pack.

Abstract: Provided are a vehicle body assembly and a vehicle. The vehicle body assembly includes a plurality of longitudinal beams, a first connection section, a plurality of sill beams, a front bulkhead cross beam, a second connection section, a middle channel, and a seat mounting beam. The first connection section is connected between one of the plurality of longitudinal beams and a corresponding one of the plurality of sill beams. The front bulkhead cross beam is connected to the plurality of longitudinal beams. The seat mounting beam is connected to the plurality of sill beams. The middle channel is connected between the front bulkhead cross beam and the seat mounting beam. The second connection section is connected between the middle channel and a corresponding one of first connection sections.

Abstract: Embodiments of the present disclosure provide a method for constructing a polypeptide molecule, an apparatus, a device, a storage medium, and a program product. The method described herein comprises: obtaining a set of coding tables of a generation model, the set of coding tables comprising a plurality of discrete coded representations, the generation model comprising a first decoder and a second decoder, the set of coding tables being used for constructing a first input to the first decoder and a second input to the second decoder, the first decoder being used for determining a secondary structure of a polypeptide molecule based on the first input. According to the embodiments of the present disclosure, the polypeptide molecule having higher antibacterial activity can be obtained by considering the secondary structure in the process of constructing the polypeptide molecule.

Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media for processing image data. One illustrative method of processing image data includes: capturing a first image of a subject using a variable aperture lens configured with a first aperture and a first exposure value; capturing a second image of the subject using the variable aperture lens configured with a second aperture and a second exposure value, wherein the second aperture is smaller than the first aperture and the second exposure value is smaller than the first exposure value; and generating a high dynamic range (HDR) image at least in part by fusing the first image and the second image fusing the first image and the second image.

Abstract: A peptide targeting a BRCA2 protein and an application thereof, and a drug for treating prostate cancer are provided, which relate to the technical field of protein peptides. The amino acid sequence of the peptide is shown in SEQ ID NO: 1. The peptide has strong binding ability with BRCA2 protein, and can deliver the BRCA2 protein into prostate cancer cells, which can effectively inhibit cell proliferation and tumor growth, and has an ability of targeted degradation of BRCA2. Sensitivity of prostate cancer cells to PARP inhibitor can be significantly enhanced by combining the peptide with PARP inhibitor. Thus, the peptide can be used in preparing the drug for treating mCRPC or in preparing a reagent for degrading BRCA2 protein. BRCA2-targeted PROTAC drug can provide a new treatment strategy for prostate cancer, and PARP targeting inhibitor is combined to provide PARP inhibitor synthesis lethality treatment effect for mCRPC patients.

Abstract: Embodiments of the disclosure provide an ultrasound beamforming method and device. The method includes: obtaining channel data of a target tissue; and processing the channel data using at least two different ultrasound beamforming methods to obtain image data of the target tissue corresponding to the different ultrasound beamforming methods, where the at least two different ultrasound beamforming methods are different in at least one of principle, step, and parameter.

Abstract: A polymer, a separator, and a related secondary battery and electric apparatus are described. The polymer includes a first structural unit, a second structural unit, and a third structural unit; where the first structural unit includes a structural unit represented by formula (I), and in formula (I), R1 includes one or more of hydrogen atom and substituted or unsubstituted C1-C5 alkyl, and R2 includes one or more of substituted or unsubstituted C1-C20 alkyl, substituted or unsubstituted C3-C20 cycloalkyl, and substituted or unsubstituted C1-C20 hydroxyalkyl; the second structural unit includes a structural unit represented by formula (II), and in formula (II), R3 includes one or more of hydrogen atom and substituted or unsubstituted C1-C5 alkyl; and the third structural unit includes a structural unit represented by formula (III). The units in the polymer can synergistically improve the adhesion, stability, swelling resistance, and thermal stability of the polymer.

Abstract: A method for preparing a polymer includes: mixing a polymer monomer, an initiator, and an emulsifier to obtain a mixture, where the polymer monomer includes an acrylate monomer; the initiator includes at least one of a persulfate initiator, an acyl peroxide initiator, and an azo initiator; and the emulsifier includes an anionic emulsifier; allowing the mixture to undergo polymerization to obtain a polymer emulsion, where the viscosity of the polymer emulsion at 25° C. is 100 mPa·s to 2,000 mPa·s, and the solid content of the polymer emulsion is 20% to 60%; and granulating the polymer emulsion to obtain the polymer.

Abstract: An electrochemical apparatus includes a housing, an electrode assembly, a first conductive member and a second conductive member. The housing includes a first housing body and a second housing body. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The first electrode plate, the separator and the second electrode plate are wound around the first conductive member, and the first electrode plate is electrically connected to the first conductive member. The first conductive member defines a first cavity. The first housing body is provided with a first through hole in communication with the first cavity. The second conductive member is provided in the first cavity and the second electrode plate is electrically connected to the second conductive member. The second conductive member defines a second cavity. The second conductive member is provided with a second through hole in communication with the second cavity.

Abstract: An ultrasonic imaging method includes: controlling an ultrasonic probe to transmit ultrasonic waves to a biological tissue under examination and receive echo signals of the biological tissue under examination, the echo signals comprising one group of channel data; beam-forming the channel data by using a first beam-forming procedure to obtain beam-formed data of a first group of beam-forming points, and generating a first ultrasonic image of the biological tissue under examination based on the beam-formed data of the first group of beam-forming points; determining a region of interest based on the first ultrasonic image; beam-forming the channel data by using a second beam-forming procedure to obtain beam-formed data of a second group of beam-forming points; generating a second ultrasonic image of the region of interest based on the beam-formed data of the second group of beam-forming points; and displaying the first and second ultrasonic images in a fusion manner.

Abstract: This disclosure provides a voice signal decoding method and apparatus and an electronic device. An encoding apparatus encodes an original voice signal, to obtain an encoded bitstream. The encoded bitstream includes an acoustic feature encoding result. A decoding apparatus obtains the acoustic feature encoding result in the encoded bitstream, obtains a style feature from the acoustic feature encoding result, obtains an excitation feature, performs style fusion processing on the excitation feature and the style feature, to obtain a fused voice feature, and reconstructs a decoded voice signal based on the voice feature. Because the style feature indicates a voice style of an original voice signal, a voice feature in the original voice signal can be restored from the voice feature obtained by performing style fusion on the excitation feature and the style feature.