Abstract: The present application discloses a method for adjusting an amount of powder, comprising: acquiring buffer data, wherein the buffer data comprises first data and at least one second data, the first data indicates a current powder amount, the second data indicates a historical powder amount, and the second data and the first data are collected in time sequence; determining weighted deviation data based on the buffer data, respective standard data corresponding to each data within the buffer data, and respective weight values corresponding to each data within the buffer data, wherein the weight value corresponding to the first data is greater than the weight value corresponding to the second data; and correcting a subsequent powder amount based on the weighted deviation data.

Abstract: A ridge recognition substrate and a ridge recognition apparatus. The ridge recognition substrate includes: a base substrate including a photosensitive area, and a light-shielding area located on at least one side of the photosensitive area; a plurality of photosensitive devices, arranged in the photosensitive area in an array; each photosensitive device includes a first electrode, a photoelectric conversion structure and a second electrode arranged in layers, the photoelectric conversion structure is electrically connected with the first electrode, and the photoelectric conversion structure directly contacts with the second electrode; and dummy devices, arranged in the light-shielding area in an array, each dummy device including a third electrode, an equivalent dielectric layer and a fourth electrode, the third electrode and the first electrode is in the same layer, the fourth electrode is located at the side of the layer where the second electrode is located facing away from the base substrate.

Abstract: The present application discloses a negative electrode current collector, a negative electrode plate, and an electrochemical device. The negative electrode current collector includes an organic support layer and a copper-based conductive layer disposed on at least one surface of the organic support layer; wherein a thickness D1 of the copper-based conductive layer, a tensile strength T of the organic support layer, and a thickness D2 of the organic support layer satisfy a relational formula 0.01?(300×D1)/(T×D2)?0.5. The negative electrode current collector has relatively high mechanics and mechanical properties, good electrical conductivity and current collection performance, which can improve preparation yield of the negative electrode current collector, the negative electrode plate and the electrochemical device and their reliability during use, and is beneficial to enabling the electrochemical device to have relatively high electrochemical performance and relatively high gravimetric energy density.

Abstract: A tongue plate includes a number of first conductive pads and a conductive shielding assembly. The conductive pads include a first signal terminal group, a first ground terminal and a second ground terminal. The conductive shielding assembly includes a first conductive shielding plate in contact with the first ground terminal, a second conductive shielding plate in contact with the second ground terminal, and a connecting plate connecting the first conductive shielding plate and the second conductive shielding plate. The first conductive shielding plate, the second conductive shielding plate and the connecting plate jointly form a first conductive shielding cavity. The first signal terminal group is located at a first opening of the first conductive shielding chamber. Such arrangement improves the signal shielding effect of the tongue plate and reduces signal crosstalk.

Abstract: Embodiments of this application provide a paging method and an apparatus, to reduce paging overheads, and relate to the field of wireless communication technologies. In the method, a serving network device may receive positioning area information. A positioning area represented by the positioning area information herein is used by a terminal device to send an SRS in an inactive mode or an idle mode. The serving network device may send a paging message to one or more neighboring network devices in a paging area. The paging area may be determined based on the positioning area.

Abstract: A near-field positioning method includes measuring, by a terminal device, N reference signals corresponding to N beams from a network device, to obtain reference signal received power (RSRP) corresponding to the N beams. Nis a positive integer. The near-field positioning method also includes determining, by the terminal device, a location of the terminal device based on the RSRP corresponding to the N beams and based on distances and angles corresponding to the N beams. A distance corresponding to a first beam is a distance between a center location of the first beam and a reference antenna of the network device. An angle corresponding to the first beam is an angle of the center location of the first beam relative to the reference antenna. The first beam is any one of the N beams.

Abstract: A composite current collector, an electrode plate, a secondary battery, and an electric apparatus are provided. The composite current collector includes a first metal layer, a bonding layer, and a second metal layer. The bonding layer includes a first surface and a second surface disposed opposite each other; the first metal layer is located on the first surface; and the second metal layer is located on the second surface. In the composite current collector, by disposing the bonding layer between the first metal layer and the second metal layer, peel strength of the first metal layer and the second metal layer can be enhanced, reducing the risk of detachment of the metal layers during processing.

Abstract: An example apparatus includes: first voltage-to-current (V-I) circuitry having a first terminal and a second terminal; second V-I circuitry having a first terminal and a second terminal; a first transistor having a first terminal, a second terminal, and a control terminal, the first terminal of the first transistor coupled to the first terminal of the first V-I circuitry and the first terminal of the second V-I circuitry; a second transistor having a first terminal, a second terminal, and a control terminal, the first terminal of the second transistor coupled to the second terminal of the first V-I circuitry and the second terminal of the second V-I circuitry; a first resistor having a first terminal and a second terminal, the first terminal of the first resistor coupled to the second terminal of the first transistor, the second terminal of the first resistor coupled to the control terminal of the second transistor.

Abstract: A sidelink positioning reference signal resource scheduling method and a communication apparatus are provided, to implement semi-persistent scheduling of a sidelink positioning reference signal resource, thereby reducing signaling overheads. The method may include: receiving downlink control information from a network device, where the downlink control information includes a first field and a second field, the first field is for determining a sidelink positioning reference signal resource, and the second field indicates to activate or deactivate the sidelink positioning reference signal resource; and in response to a value of the second field, activating the sidelink positioning reference signal resource; or in response to a value of the second field, deactivating the sidelink positioning reference signal resource.

Abstract: A circuit board includes a first signal conductive area, a second signal conductive area, a first ground conductive area and a second ground conductive area. The first signal conductive area and the second signal conductive area both extend along a first direction. The first ground conductive area and the second ground conductive area are located on two sides of the first signal conductive area and the second signal conductive area, respectively, thereby improving shielding effect. A connector assembly including the circuit board is also disclosed.

Abstract: In a peeling system and a peeling method for a flexible fingerprint component provided by the present invention, the flexible fingerprint component is formed on a rigid substrate, and the flexible fingerprint component comprises a flexible substrate, a photosensitive device layer and an optical film sequentially arranged on the flexible substrate, a first chip-on film bonded to the photosensitive device layer on a first side of the optical film, and a second chip-on film bonded to the photosensitive device layer on a second side of the optical film, wherein the optical film is provided with an extension portion beyond the flexible substrate, the second side of the optical film is located on a side opposite to the extension portion, and the first side of the optical film is located on a side adjacent to the extension portion.

Abstract: An electrical connector includes a housing, a first terminal module, a first ground sheet and a second ground sheet. The first terminal module includes two first conductive terminals which are a first signal terminal and a second signal terminal, respectively. Each first conductive terminal includes a first contact arm. The first ground sheet and the second ground sheet are fixed relative to the housing. The first ground sheet includes a first grounding elastic arm. The second ground sheet includes a second ground elastic arm. The first grounding elastic arm and the second grounding elastic arm are arranged separately and extend toward each other.

Abstract: This application discloses a packet processing method including: receiving a first packet that includes a DA field and an SRH, where the DA field includes at least one C-SID that is sequentially arranged; determining, depending on whether another C-SID is further included after a first C-SID corresponding to the first node in the at least one C-SID, whether a first processing flavor corresponding to the first C-SID indicates a movement operation or a replacement operation; and if the first processing flavor indicates a movement operation, moving a target field that is after the first C-SID and that is in the DA field, to enable the target field to cover the first C-SID in the DA field; or if the first processing flavor indicates a replacement operation, replacing the first C-SID in the DA field with a second C-SID in the SRH.

Abstract: The present disclosure relates to a substantially rectangular crosshead box formed by an integral forming process and provided with a front end surface, a rear end surface, an upper end surface, a lower end surface, and a side end surface. The crosshead box is provided with: a plurality of crosshead cavities, each extending in a longitudinal direction through the crosshead box body, and arranged in a transverse direction of the crosshead box. The crosshead box is further provided with a plurality of exhaust chambers, each running through the crosshead box in the longitudinal direction and being in communication with the corresponding crosshead cavity. The present disclosure further relates to a plunger pump provided with the above crosshead box. By integrally forming the crosshead box, the service life is improved, and operational air pressure inside the box body can be controlled, thereby improving the operating stability and service life.

Abstract: An electrical connector includes a housing, a first terminal module, a first shielding rib and a second shielding rib. The housing includes a first terminal module installation slot. The first terminal module is partially received in the first terminal module installation slot. The first terminal module includes two first conductive terminals which are a first signal terminal and a second signal terminal, respectively. Each first conductive terminal includes a first mounting foot protruding beyond the housing. The first shielding rib and the second shielding rib are located on two sides of the first mounting foot of the first signal terminal and the first mounting foot of the second signal terminal, respectively.

Abstract: The deluge valve assembly includes: a deluge valve, in which the deluge valve includes a water inlet cavity, a water outlet cavity, and a diaphragm cavity. The water inlet cavity is suitable for communication with the fire protection pipe network so as to make water from the fire protection pipe network flow into the water inlet cavity; a water inlet pipeline, in which an inlet of the water inlet pipeline is connected with the water inlet cavity, and an outlet of the water inlet pipeline is connected with the diaphragm cavity; a water outlet pipeline, in which an inlet of the water outlet pipeline is connected with the diaphragm cavity; reinforcement members, in which at least two of the deluge valve, the water inlet pipeline, and the water outlet pipeline are connected through the reinforcement members. The deluge valve assembly has advantages of good performance in anti-vibration and reliability.

Abstract: Raw sensor data from a device of a user is collected. The raw data does not include location data for the device. The data is preprocessed to identify driving trips in which the user had the device. The trip data is provided to machine-learning models (MLMs) as input and the MLMs provide as output predictions for each trip's estimated speeds, estimated number of hard brakes and a degree of each hard brake, and estimated degrees of distracted driving. A duration, time of day, and calendar date of each trip is identified. The predictions, duration, time of day, and calendar date are modified into four factor values. The four modified factor values are combined into an overall driver characteristic value and provided to a network service associated with the user for purposes of providing or modifying services provided to the user through the network service based on the overall characteristic value.

Abstract: A station returning method and apparatus for an underwater cleaning robot, and the underwater cleaning robot are disclosed. Ultrasonic signals sent by a charging station are received by at least two ultrasonic receiving units positioned at different positions of the underwater cleaning robot in response to a station returning instruction to the underwater cleaning robot, where the station returning instruction is used for instructing the underwater cleaning robot to dock with the charging station. The underwater cleaning robot is controlled to move towards the charging station based on signal parameters of the ultrasonic signals received by the at least two ultrasonic receiving units. When an RF signal sent by the charging station is received by means of an RF receiving unit, the underwater cleaning robot is controlled to return to the charging station based on the RF signal, such that the underwater cleaning robot can dock with the charging station.