Abstract: The present application provides a sodium-ion battery, a battery module, a battery pack, and an electrical device. The sodium-ion battery includes a positive electrode plate, a negative electrode plate, and a separator; the positive electrode plate includes a positive electrode current collector and a positive electrode active material layer arranged on at least one surface of the positive electrode current collector, the negative electrode plate includes a negative electrode current collector and a negative electrode active material layer arranged on at least one surface of the negative electrode current collector, and the separator is arranged between the positive electrode plate and the negative electrode plate; the positive electrode active material layer has a porosity denoted as ?, the negative electrode active material layer has a porosity denoted as ?, and the separator has a porosity denoted as ?, which satisfy 0?(???)/??1.5, and ???.

Abstract: A secondary battery comprises a positive electrode plate and a negative electrode plate. The positive electrode plate comprises a positive electrode current collector and a positive electrode active layer loaded on the surface of the positive electrode current collector, and the negative electrode plate comprises a negative electrode current collector and a negative electrode active layer loaded on the surface of the negative electrode current collector. The positive electrode active layer has a compacted density of A1 g/cm3 and a porosity of B1, and 1.8?A1/B1?12. The negative electrode active layer has a compacted density of A2 g/cm3 and a porosity of B2, and 1?A2/B2?8.

Abstract: Techniques for selecting a skill to execute in response to a natural language input are described. A system may receive a natural language input, determine profile data associated with the natural language input, and determine the profile data indicates a locale and at least first language and second languages. The system determines first and second sets of skills corresponding to the locale/first language and locale/second language, respectively. The system determines a first group of skill candidates corresponding to a portion of the first set of skills, and determines a second group of skill candidates corresponding to a portion of the second set of skills. The system performs ranking processing across the first and second groups of skills to determine a best skill for responding to the natural language input. Thus, in some situations, the skill invoked may not correspond to the same language represented in the natural language input.

Abstract: The disclosure relates to mixed analog-digital circuits, and more specifically a low-noise millimeter-wave fractional-N frequency synthesizer. It overcomes quantization noise and fractional spurs caused by the limited dynamic range and nonlinearity of time error amplifiers (TA) in traditional phase-locked loop structures based on TA. In addition to the traditional structure, the synthesizer includes a coarse digital-to-time converter (CDTC), a fine digital-to-time converter (FDTC), and DTC non-linearity calibration circuits. By inserting the CDTC and FDTC before and after the TA, respectively, the variance of the input phase difference of the TA can be reduced, thereby improving the TA linearity and suppressing the quantization noise and spur generated by fractional-N operation. Furthermore, by using non-linearity calibration, the non-linearity of DTC and TA can be compensated to avoid large quantization noise and spur while the second order quantization noise reshaping is maintained.

Abstract: Various embodiments of the present disclosure provide a method for measurement. The method includes: measuring a pixel-level size of one or more markers in a first image by applying image segmentation to the one or more markers in the first image. Each of the one or more markers may be designed in concentric circles way and have a predefined world-level size. In accordance with an embodiment, the method further includes: determining a mapping relationship between a pixel-level size and a world-level size, according to the measured pixel-level size and the predefined world-level size of the one or more markers.

Abstract: A laser projection apparatus is provided and includes an optical modulating assembly, a vibrating device, a projection lens, and a circuit architecture. The circuit architecture includes an image processing sub-circuit and a display driving sub-circuit. The image processing sub-circuit is configured to perform frame division on image data of an image to be displayed to obtain image signals of a plurality of frames of sub-images to generate a frame division control signal. The display driving sub-circuit is configured to output the image signals of the plurality of frames of sub-images to the optical modulating assembly and output a vibration instruction to the vibrating device based on the output timing of the image signals of the plurality of frames of sub-images, so as to control the vibrating device to perform vibrations, so that the projection beams are output through the vibrating device.

Abstract: Provided are an electric device, a battery, and a battery unit and a manufacturing method. The battery unit includes a housing, electrode terminals, multiple battery cells, and current collecting members. The electrode terminals are provided at the top of the housing. The multiple battery cells are accommodated within the housing. At least two of the battery cells have different heights, and the current collecting members are provided within an accommodation space formed by a main body of a shortest battery cell and the top of the housing. The battery includes the foregoing battery unit. The electric device includes the foregoing battery. The manufacturing method of the battery unit includes providing current collecting members within an accommodation space formed by a main body of a shortest battery cell and the top of the housing. The electric device, battery, and battery unit and manufacturing method thereof improve space utilization and energy density.

Abstract: An embodiment method, by a user equipment (UE), includes performing a channel measurement (CM) on a first subset of a set of non-zero-power (NZP) CSI reference signal (CSI-RS) resources and an interference measurement (IM) on at least a second subset of the set of NZP CSI-RS resources. The second subset includes one or more NZP CSI-RS ports. The IM is performed according to assumptions: each NZP CSI-RS port in the second subset corresponds to an interference transmission layer, the IM being in accordance with a set of energy per resource element ratios each associated with one NZP CSI-RS resource in the second subset; and other interference not associated with the interference transmission layers is on the first and second subsets. The method includes generating a channel state information (CSI) report based on the CM and IM and transmitting the CSI report to a network.

Abstract: A method for operating a user equipment (UE) includes receiving at least one of a configuration of a first group of one or more downlink (DL) signals, a configuration of a second group of one or more open-loop power control (PC) parameters, a configuration of a third group of one or more closed-loop PC parameters, or a configuration of a fourth group of one or more loop states, receiving a configuration of a PC setting, wherein the PC setting is associated with at least one of a subset of the first group, a subset of the second group, a subset of the third group, or a subset of the fourth group, selecting a transmit power level in accordance with the PC setting and a pathloss, wherein the pathloss is determined in accordance with a DL reference signal (SS) and a synchronization signal (SS).

Abstract: Voicemail spam detection is performed based on content of voicemail messages. The content of an incoming voicemail message is compared to a spam template that includes a representation of a spam voicemail. Spam templates may be generated based on spam indications provided by users for voicemail messages they have received. User indications for sufficiently similar voicemail messages may be aggregated by maintaining a vote count for a spam template that reflects how many times a user has indicated a matching voicemail message is spam. A spam template may also include an occurrence count that reflects how many times voicemail messages matching a spam template have been detected in a telephony system. An incoming voicemail message may be compared to spam templates and, responsive to a match of content and/or a corresponding vote count or occurrence count meeting a condition, the voicemail message may be identified as spam.

Abstract: An embodiment method of network node operation includes indicating, by a first network node, to a first UE, a first number of REs in a first set of RBs for a first reference signal, transmitting, by the first network node, to the first UE, the first reference signal in accordance with the first number of REs and a first precoding in a first subframe, receiving, by the first network node, from the first UE, a report indicating a first MCS in accordance with a level of signal and interference measured by the first UE, wherein the measurement is restricted to the first reference signal, and transmitting, by the first network node, a first data with the indicated first MCS and the first precoding in a second subframe, the first data being transmitted on a second number of REs in the first set of RBs in the second subframe.

Abstract: Methods, systems, and devices for wireless communication are described. A first user equipment (UE) may receive a control message that triggers reception of CLI reference signals for CLI measurements. The first UE may adjust a reception timing of the first UE for the CLI measurements. The first UE may adjust the reception timing during a time interval that occurs after the control message is received and in accordance with a rule to align the reception timing of the first UE with a transmission timing of a second UE. The transmission timing of the second UE may be associated with transmission of the CLI reference signals from the second UE. The first UE may perform the CLI measurements using the adjusted reception timing in accordance with the rule. The first UE may transmit a report to the network entity that indicates one or more CLI metrics corresponding to the CLI measurements.

Abstract: Embodiments of the present disclosure provide methods and apparatuses in the field of beam management. Some embodiments receive a downlink control information (DCI), the DCI scheduling one or more data channel transmissions. Some embodiments determines, a receive beam based on a time duration for quasi co-location (QCL), a scheduling offset, and a minimum time offset. Some embodiments receive using the receive beam, data symbols from the one or more data channel transmissions scheduled by the DCI.

Abstract: Disclosed is a door hinge, comprising: a fixed body that is provided with a first connecting shaft and a second connecting shaft along the lengthwise direction therein; a linkage assembly of which both ends are respectively hinged to the fixed body and a movable body; the movable body that is provided with a sliding block capable of sliding along the depth direction of the movable body therein, one end of the sliding block being hinged to one end of the linkage assembly, and a straight track surface and an inclined track surface inclined towards the interior of the sliding block being provided at one side of the sliding block; and a self-closing mechanism that is provided on the side of interior of the movable body close to the straight track surface, has a telescopic structure, and has one end abutting against the side surface of the sliding bock.

Abstract: This disclosure relates an airline ticket management method and apparatus, a computer-readable storage medium, and a program product. The airline ticket management method comprises: acquiring a distance addition instruction, wherein the distance addition instruction is configured to indicate a first distance and a first user; and adding the first distance into a first distance pool of the first user.

Abstract: A computer-implemented method for detecting lung abnormalities is provided. The method includes the steps of: acquiring a chest image of a subject; labeling one or more regions of interest (ROIs) in the chest image; segmenting a fine-grained boundary of each of the labeled ROIs; generating a plurality of output matrixes for each of the segmented ROIs; sorting a plurality of prediction scores obtained in the output matrixes, and generating a plurality of recommendations of potential abnormalities for each of the ROIs; and outputting the recommendations, A smart imagery framing and truthing (SIFT) system for implementing the method is also provided.

Abstract: A close-range microwave imaging method includes: implementing Fourier transform in a pre-set rotation axis direction on an echo signal reflected from a target object and acquired by rotating an array antenna around the pre-set rotation axis to obtain a first echo signal, wherein the first echo signal is represented in polar coordinates; multiplying the first echo signal by a pre-set reference function to obtain a second echo signal; converting the second echo signal into rectangular coordinates by a pre-set algorithm to obtain a third echo signal; and implementing three-dimensional Fourier transform on the third echo signal to obtain three-dimensional image data of the target object. By means of the method, three-dimensional image data of a target object can be obtained fast, fast imaging of the target object can be realized, the data processing amount is small, the imaging precision is high and the method is easy to implement.

Abstract: A three-dimensional imaging system and method based on rotational scanning is disclosed. The system includes a column-shaped frame with a column-shaped side; a transceiving antenna array element arranged on the column-shaped side that transmits a micro-wave detection signal to a detected object located in the column-shaped frame and receives an echo signal reflected back from the detected object; a signal transceiving device that generates the micro-wave detection signal and sends same to the transceiving antenna array element and processes the echo signal; a rotation control device that controls rotational movement of the transceiving antenna array element so that the transceiving antenna array element transmits the micro-wave detection signal to the detected object in a plurality of angles; and a positioning trigger fixedly arranged on the column-shaped frame and configured to trigger the signal transceiving device when the transceiving antenna array element arrives at a position of the positioning trigger.

Abstract: The application provides a interface light path structure with all polarization-maintaining function. A first polarization-maintaining-transferring device includes a first port, a second port, and a third port, wherein the first port receives a first polarized light output by the polarization beam-splitting device, the second port is connected to the first Faraday rotation mirror, and the third port is connected to a first port of the first polarization-maintaining coupler. A second polarization-maintaining-transferring device includes a first port, a second port, and a third port, wherein the first port receives a second polarized light output by the polarization beam-splitting device, the second port is connected to the second Faraday rotation mirror, and the third port is connected to a second port of the first polarization-maintaining coupler.

Abstract: A data packet sending method, a network device, a control device, and a network system includes receiving a first data packet sent by a first device, where a packet header of the first data packet includes a first sequence number marker sequence, a first position marker sequence, a first accumulated value, and a verification value; obtaining a second data packet, where a packet header of the second data packet includes a second sequence number marker sequence, a second position marker sequence, a second accumulated value, and the verification value; and sending the second data packet to a second device.