Abstract: In certain aspects, a device for wireless transmission includes a transmission path, a feedback path, and a DPD control module. The transmission path includes a digital pre-distortion (DPD) conversion module configured to perform pre-distortion processing on an amplitude and a phase of a transmission signal based on a pre-distortion processing strategy. The transmission path further includes a power amplifier coupled to a downstream of the DPD conversion module and configured to amplify a power of the transmission signal. The feedback path is coupled to the transmission path at the downstream of the power amplifier and configured to generate a feedback signal. The feedback path includes a static gain compensation module configured to be activated during an initial time period of each frame to track and update a static gain for the feedback signal and configured to hold the static gain after the initial time period of each frame.

Abstract: A training method for an image denoising model that can include collecting multiple sample image groups through a shooting device, each sample image group including multiple frames of sample images with a same photographic sensitivity and sample images in different sample image groups having different photographic sensitivities.

Abstract: Embodiments of the present disclosure generally relate to carbon materials for battery electrodes and methods for preparing such carbon materials. More specifically, embodiments relate to methods for coating a carbon film onto nano-ordered carbon particles to produce carbon-coated particles which can be used as an anode material within a battery, such as a lithium-ion battery, a sodium-ion battery, other types of batteries. In one or more embodiments, a method for producing carbon-coated particles is provided and includes positioning nano-ordered carbon particles within a processing region of a processing chamber, purging the processing region containing the nano-ordered carbon particles with an inert gas, heating the nano-ordered carbon particles to a temperature of about 700° C. or greater during an annealing process, and depositing a carbon film on the nano-ordered carbon particles to produce carbon-coated particles during a vapor deposition process.

Abstract: A receptacle connector for mating with a plug connector having a mating tongue and a latch thereof, includes an insulative housing defining a mating slot extending along a longitudinal direction to receive the mating tongue of the plug connector, and an outer metallic shield defining a primary space to receive the housing and a secondary space communicatively beside the primary space to receive the latch of the plug connector. A plurality of contacts are disposed in the housing to mechanically and electrically connect to the mating tongue. An inner metallic shield is attached upon a long side of the housing to separate the primary space and the secondary space from each other in a transverse direction perpendicular to the longitudinal direction.

Abstract: In a method of automatically creating accounts, a user identifier and a password are obtained in response to a request of a user for login to a system. Whether the user identifier exists in the first database is determined. When the user identifier does not exist in the first database, whether the user identifier and the password conform to an account rule is determined. When the user identifier and the password conform to the account rule, an account for the user is created according to the user identifier and the password. The method improves the ease and efficiency of creating, accounts.

Abstract: An electrical connector assembly includes: a first frame defining plural accommodating cavities; plural transmission units partially received in the accommodating cavities, respectively, each of the transmission units comprising a card edge connector received in a corresponding accommodating cavity, a motherboard connector, and a circuit board connected with the card edge connector and the motherboard connector; and a second frame attached to the first frame; wherein the second frame presses against and hold the circuit boards in position.

Abstract: A method, an apparatus, and a device for obtaining an artificial intelligence model, and a storage medium are provided. A client receives a first artificial intelligence AI model sent by a service end (303). The first AI model includes a plurality of neurons. The client determines, from the plurality of neurons, a target neuron participating in a current round of training, where the current round of training is a non-first round of training, and a quantity of target neurons is less than a total quantity of the plurality of neurons (304). The client trains the target neuron based on local data (305). The client returns parameter data corresponding to the target neuron to the service end (306). The parameter data corresponding to the target neuron is used by the service end to obtain a converged target AI model.

Abstract: A rotating assembly includes a first handle; the first handle includes a connecting part. The connecting part has first and second extensions and the connecting part is rotatably connected to a box holding one or more devices. The first and second extensions are arranged on opposite sides of the connecting part, the first extension can rotate with the connecting part until it rests on a base, on which base the box is rotatably arranged. The first extension and the second extension extend to both sides of the connecting part to lessen the force required for driving the box to rotate.

Abstract: A modeling method and an apparatus are disclosed. The method includes: obtaining a first data set of a first indicator, and determining, based on the first data set, a second indicator similar to the first indicator; and determining a first model based on one or more second models associated with the second indicator. The first model is used to detect a status of the first indicator, and the status of the first indicator includes an abnormal state or a normal state. The second models are used to detect a status of the second indicator, and the status of the second indicator includes an abnormal state or a normal state.

Abstract: A child safety seat includes a seat shell, a front end part rotatable relative to the seat shell between a retracted and a deployed position, and a latching mechanism for locking the front end part in the deployed position. The seat shell has a front end provided with an opening, and two sidewalls respectively protruding at a left and a right side of a seat portion. The front end part has a transversal portion extending along a width direction of the seat shell, and two side portions respectively connected pivotally with the two sidewalls of the seat shell via two pivot shafts spaced apart from each other along the width direction. The transversal portion of the front end part is stowed inside the opening of the seat shell in the retracted position, and extends outside the opening of the seat shell in the deployed position.

Abstract: Various embodiments include a method for determining a collection frequency of data. The data are collected from a device for an application program to monitor the device. The method may include: determining a collection frequency requirement of the application program regarding the data of the device; determining state information of the device; and determining, based on the determined collection frequency requirement of the application program regarding the data of the device and the determined state information of the device, a collection frequency of data according to a preset rule.

Abstract: Provided is an aqueous composition comprising dispersed particles that comprise a polyurethane, wherein said polyurethane is a reaction product of a group of reactants (GR1), wherein GR1 comprises one or more aromatic polyisocyanates and, a polyol component, wherein said polyol component comprises (a) 50% to 99% by weight, based on the weight of said polyol component, one or more polyester polyols, (b) 0.1% to 10% by weight, based on the weight of said polyol component, one or more diols having a hydrophilic side chain, and (c) 0.9% to 40% by weight, based on the weight of said polyol component, one or more polyols different from (a) and (b). Also provided is a method of bonding a metal foil to a polymer film using such an aqueous composition.

Abstract: A method and an apparatus for updating an application identification model, and a storage medium are provided. A client device may determine a plurality of training samples based on identification results of a plurality of pieces of data traffic, and train an application identification model using the training samples. Then, the client device may upload model data of the trained application identification model to a server, and the server performs joint update based on the model data uploaded by a plurality of client devices. Then, the client device may obtain a jointly updated application identification model based on jointly updated model data delivered by the server.

Abstract: Techniques and mechanisms for optically coupling a photonic integrated circuit (PIC) chip to an optical fiber via a planar optical waveguide structure. In an embodiment, a PIC chip comprises integrated circuitry, photonic waveguides, and integrated edge-oriented couplers (IECs) which are coupled to the integrated circuitry via the photonic waveguides. The PIC chip forms respective divergent lens surfaces of the IECs, which are each at a respective terminus of a corresponding one of the photonic waveguides. A planar optical waveguide structure, which is adjacent to the IECs, comprises a core which is optically coupled between the PIC chip and an array of optical fibers. In another embodiment, an edge of the PIC forms a stepped structure, wherein an upper portion of the stepped structure comprises the plurality of coplanar IECs, and a lower portion of the stepped structure extends past the plurality of coplanar IECs.

Abstract: Techniques and mechanisms for facilitating horizontal communication with a photonic integrated circuit (PIC) chip, and a lens structure which is optically coupled thereto. In an embodiment, a PIC chip comprises integrated circuitry, photonic waveguides, and integrated edge-oriented couplers (IECs) which are coupled to the integrated circuitry via the photonic waveguides. The PIC chip forms respective first divergent lens surfaces of the IECs, which are each at a respective terminus of a corresponding one of the photonic waveguides. A lens structure, which is adjacent to the IECs, comprises a second divergent lens surface having an orientation which is substantially orthogonal to the respective orientations of the first divergent lens surfaces. In another embodiment, an edge of the PIC chip forms one or more recess structures, and the lens structure comprises one or more tenon portions which each extends into a respective recess structure of the one or more recess structures.

Abstract: A system for visualization and quantification of ultrasound imaging data according to embodiments of the present disclosure may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to estimate axial and lateral velocity components of the fluid flowing within the bodily structure, determine a plurality of flow directions within the image based on the axial and lateral velocity components, differentially encode the flow directions based on flow direction angle to generate a flow direction map, and cause the display unit to concurrently display the image including the bodily structure overlaid with the flow direction map.

Abstract: A display device and a driving method are provided. The display device includes a display panel and a control IC. The display panel includes a plurality of light-emitting elements. The control IC is configured to control the plurality of light-emitting elements to be turned on at a first frequency so as to display display-related data, and control at least two light-emitting elements of the plurality of light-emitting elements to be turned on and off at a second frequency greater than the first frequency so as to transmit visible light data.

Abstract: A network device includes: a network interface configured to receive target data, a first processor configured to determine feature information of the target data, a second processor configured to perform preprocessing on the feature information, and a third processor configured to perform inference on a preprocessing result. In addition, the second processor is further configured to perform policy analysis based on an inference result.

Abstract: A data stream classification model updating method is disclosed. Determining, based on packet information of a current data stream and a behavior classification model, a first data stream class corresponding to the current data stream; determining, based on a target correspondence and a common feature of the current data stream, a second data stream class corresponding to the current data stream, where the target correspondence is a correspondence between a plurality of common features and a plurality of data stream classes; and if the first data stream class is different from the second data stream class, obtaining correction data corresponding to the current data stream, where the correction data includes the packet information of the current data stream and the second data stream class, and the correction data is used as a training sample to update the behavior classification model.

Abstract: A child safety seat is provided and includes a base, a seat body and a notifying system. The seat body is movable relative to the base between a first position and a second position. The notifying system includes at least one actuated device disposed on one of the base and the seat body, an actuating component disposed on another one of the base and the seat body, and a notifying device electrically connected to the at least one actuated device. When the seat body reaches at least one of the first position and the second position, the actuating component actuates the at least one actuated device, so that the at least one actuated device is actuated to generate different types of actuating signals. The notifying device generates different types of notifying signals when the at least one actuated device generates the different types of actuating signals.