Abstract: Embodiments of this application provide a control channel configuration method, a base station, and a terminal device. The method includes: determining, by a base station, a configuration of a time-frequency resource unit from at least two configurations of a time-frequency resource unit of a control channel; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the configuration of the time-frequency resource unit, and the at least two configurations of a time-frequency resource unit include a first configuration and a second configuration. In the embodiments of this application, the base station can flexibly configure the time-frequency resource unit of the control channel. In addition, flexibly configuring a time-frequency resource unit can reduce a probability that time-frequency resource units of different structures are blocked, thereby reducing complexity of detecting the control channel by the terminal device.

Abstract: A scroll compressor includes a compressor shell; a frame (4) installed in the compressor shell; a first scroll (5) located in the compressor shell; and a second scroll (6) located in the compressor shell and being co-rotatable with the first scroll (5), to define a compression chamber (56) between the first scroll (5) and the second scroll (6), the second scroll (6) having a hub (41) that extends downward from a lower surface thereof; a transformer flange (8) supported on the frame and supporting the first scroll (5) and the second scroll (6), the transformer flange (8) being connected to the first scroll (5); an actuating mechanism (7) installed in the compressor shell and connected to the transformer flange (8), for driving the transformer flange (8) to rotate, so that the first scroll (5) and the second scroll (6) are driven to co-rotate; a crankshaft (9) assembly located in the transformer flange (8) and including an oil screw (10), an upper end (101) of the oil screw (10) being fitted with a hub (61) of

Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).

Abstract: An organic light emitting device, a preparation method therefor, and a display apparatus are provided. The organic light emitting device includes an anode, a cathode, and a light emitting layer and an electron transport layer arranged between the anode and the cathode. The electron transport layer is arranged between the light emitting layer and the cathode. The electron transport layer includes a first host material and a second host material. A mixing ratio of the first host material to the second host material of one side of the electron transport layer close to the light emitting layer is different from a mixing ratio of the first host material to the second host material of one side of the electron transport layer away from the light emitting layer.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining a default uplink beam to use for at least one configured uplink resource before receiving an uplink beam configuration, such as in New Radio multi-input multi-output applications.

Abstract: A method for forming a nanosheet device. The method may include providing a heterostructure device stack above a semiconductor substrate. The method may include patterning the heterostructure device stack to define a dummy gate region, and before forming a source drain recess adjacent the dummy gate region, selectively removing a first set of sacrificial layers of the heterostructure device stack within the dummy gate region.

Abstract: A type O foot-and-mouth disease virus-like particle antigen is provided, wherein the type O foot-and-mouth disease virus-like particle antigen is type O CATHAY topotype foot-and-mouth disease virus-like particle antigen, and the type O CATHAY topotype foot-and-mouth disease virus-like particle antigen is assembled by VP0, VP3 and VP1 antigen proteins of type O CATHAY topotype foot-and-mouth disease virus. The type O foot-and-mouth disease virus-like particle antigen has good immunogenicity. The prepared vaccine can produce complete protection against the O-type foot-and-mouth disease virus on the 14th day after immunization. The antibody titer produced is higher than that of the commercial inactivated vaccine, and the duration of immune protection can be maintained for at least 133 days. The prepared vaccine composition, preparation method and use thereof are also provided.

Abstract: Methods, systems, and devices for wireless communications are described. The method may involve a user equipment (UE) utilizing beam sweeping during a random access procedure to determine an uplink beam for subsequent communication with a base station. The UE may transmit a first message indicating a random access preamble for a random access procedure and a plurality of reference signals using a set of directional beams. The base station may receive the reference signals or information related to the reference signals and transmit a second message indicating a directional beam of the set of directional beams and a set of resources. Upon receiving the second message, the UE may transmit the third message over the set of resources using the indicated directional beam.

Abstract: Provided is a fault signal locating and identifying method of industrial equipment based on a microphone array. The method includes the steps of: acquiring sound signals and dividing the acquired signals into a training set, a verifying set and a test set; performing feature extraction on the sound signals in the training set, and extracting a phase spectrogram and an amplitude spectrogram of a spectrogram; sending an output of a feature extraction module, as an input, to a CNN, and in each layer of the CNN, learning a translation invariance in the spectrogram by using a 2D CNN; in between the layers of the CNN, normalizing the output by using a batch normalization, and reducing a dimension by using a maximum pooling layer along a frequency axis; sending an output from the layers of the CNN to layers of RNN; using a linear activation function; and inputting an output of a full connection layer to two parallel full connection layer branches for fault identification and fault location, respectively.

Abstract: An intelligent analysis method for operational supervision of public transportation industry and a system thereof includes operation information collection, calculation of basic vehicle information and platform passenger flow information, current operation analysis of target vehicles, current data update and calibration of the target vehicles, automatic adjustment of dispatching operation plans for public transportation vehicles within operation areas, and real-time updates of real-time data of online vehicles within the operation areas.

Abstract: A safety thrombectomy device, comprising: a handle (1); a hollow outer tube (2); a hollow inner core tube (3) having a first inner core segment located in a through hole in the outer tube (2), a second inner core segment extending from the front end of the outer tube (2), and a third inner core segment extending from the rear end of the outer tube (2); a thrombus crusher (5) provided at the front end of the outer tube (2); a thrombus collector (4) connected to the front end of the second inner core segment of the hollow inner core tube (3) and located in front of the thrombus crusher (5); a tee joint (6) provided at the front end of the handle (1) and having a free end (10) used for injecting normal saline; an adjusting knob (7) provided on the handle (1) and capable of moving with respect to the handle (1) to drive the outer tube (2) to move back and forth; a locking knob (8) provided on the handle (1) and used for locking the adjusting knob (7) after the outer tube (2) moves to a preset position; and an inj

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information indicative of a semi-static time and frequency subband full-duplex (SBFD) configuration associated with at least one resource semi-statically configured as an SBFD resource, wherein the at least one resource comprises a time and frequency resource. The UE may receive a dynamic SBFD update indication associated with the at least one resource. The UE may perform a cross link interference (CLI) measurement task associated with an updated CLI resource based on the dynamic SBFD update indication. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described for full-duplex communications using shared radio frequency spectrum. An uplink user equipment (UE) may be scheduled for an uplink transmission in a full-duplex channel occupancy time (COT), concurrently with one or more downlink transmissions of a downlink UE using the same wireless resources. Prior to transmitting the uplink communications, the uplink UE may perform a listen-before-talk (LBT) procedure, may provide an indication that LBT has passed, and then transmit the uplink communication. The network entity may monitor for the indication from the uplink UE and, upon detection, may continue to transmit a downlink grant to the downlink UE. If the network entity does not detect a signal from the uplink UE, it may transmit a different uplink grant to a different uplink UE, or may adjust the downlink transmission to use different resources or transmission parameters.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may perform an adjustment procedure for one or more frequency resources of an uplink message or a downlink message to avoid collisions within a sub-band full duplex (SBFD) slot. In some cases, the UE may identify that a resource allocation for the downlink message extends over at least a portion of a resource allocation for the uplink message (or a guard band for the uplink message), and may perform the adjustment procedure for the uplink resource allocation. The adjustment procedure may include only using resources of the uplink resource allocation that do not overlap resources of the downlink resource allocation, shifting the uplink resource allocation within an uplink sub-band, or both. Additionally, or alternatively, such techniques may be extended to adjust the downlink resource allocation, for example, based on a type of the downlink message.

Abstract: Certain aspects of the present disclosure provide techniques for available slot counting for slots with subband full duplex (SBFD) and non-SBFD symbols. An example method, performed at a user equipment (UE), generally includes receiving an indication of whether available slot counting is enabled when the UE is configured to transmit or receive multiple repetitions on at least one physical channel, receiving signaling scheduling the UE to transmit or receive multiple repetitions on the at least one physical channel, wherein at least one of the repetitions is scheduled to occur in at least one slot that has multiple different types of symbols within that slot, and processing one or more repetitions on the physical channel, based on the indication and signaling, wherein the processing involves performing available slot counting and determining whether to transmit or receive a repetition on the physical channel in the at least one slot.

Abstract: A method includes selecting a subset of access points from among multiple candidate access points associated with a building. The method also includes receiving Wi-Fi signal strength data from the subset of access points. The method further includes using a machine learning (ML) localization algorithm to determine a proximity of a device within the building based on the received Wi-Fi signal strength data.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a synchronization signal block (SSB) including a physical layer cell identifier (PCI), where one or more resource elements carrying the SSB overlap with resource elements carrying a downlink shared channel associated with another PCI. The PCIs may be for a serving cell or another cell, such as a non-serving cell. The UE may also receive one or more demodulation reference signals (DMRSs) in the one or more resource elements in the downlink shared channel. The UE may determine whether overlap is permitted between the resource elements by comparing the PCIs of the SSB and the downlink shared channel. In some examples, once the UE determines whether resource element overlap is permitted, the UE may process the DMRSs.

Abstract: Exemplary embodiments include systems and methods for coding a video comprising a plurality of pictures including a current picture, a first reference picture, and a second reference picture, where each picture includes a plurality of blocks. In one method, for at least a current block in the current picture, a number of available bi-prediction weights is determined based at least in part on a temporal layer and/or a quantization parameter of the current picture. From among available bi-prediction weights a pair of weights are identified. Using the identified weights, the current block is then predicted as a weighted sum of a first reference block in the first reference picture and a second reference block in the second reference picture. Encoding techniques are also described for efficient searching and selection of a pair of bi-prediction weights to use for prediction of a block.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a capability message indicating that the UE supports performing inter-UE cross-link interference (CLI) measurements in an uplink subband and in at least one downlink subband during one or more overlapping subband full-duplex symbols. The UE may receive, based at least in part on the capability message, a measurement resource configuration for performing the inter-UE CLI measurements in the uplink subband and the at least one downlink subband. The UE may transmit, according to the measurement resource configuration, a measurement report message indicating a measurement result for the inter-UE CLI measurements.