Abstract: A method of calibrating a digital scale includes the steps of: (101) acquiring a first AD conversion value by the digital scale, the first AD conversion value corresponding to a weight of a reference object gathered before calibration; (102) acquiring a second AD conversion value by the digital scale, the second AD conversion value corresponding to a value when the digital scale has a weight reading of 0; (103) acquiring a target weight of a reference object; and (104) ascertaining a target AD conversion value per unit weight by reference to the first AD conversion value, the second AD conversion value and the target weight of the reference object, the target AD conversion value per unit weight being arranged to measure a weight of an object by the digital scale after calibration.

Abstract: The present invention discloses a camera optical lens with seven-piece lenses including, from an object side to an image side in sequence, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having refractive power, a fifth lens having a positive refractive power, a sixth lens having a negative refractive power and a seventh lens having a negative refractive power. Herein the camera optical lens satisfies the following conditions: ?10.00?f4/f?10.00, 4.00?d5/d6?8.00, and 2.00?(R3+R4)/(R3?R4)?10.00. The camera optical lens according to the present invention has excellent optical characteristics, such as large aperture, wide-angle, and ultra-thin.

Abstract: The present disclosure provides a method, an Internet of Things system and medium for early warning smart gas harmful components.

Abstract: A terminal includes: a processor circuit configured to: configure at least two uplink bandwidth parts (UL BWPs) and at least two downlink bandwidth parts (DL BWPs); determine an active DL BWP of the at least two DL BWPs, the active DL BWP having a corresponding UL BWP of the at least two UL BWPs, wherein the corresponding UL BWP is configured with at least one time-frequency resource to transmit a preamble; select a time-frequency resource from at least one time-frequency resource allocated for preamble transmission in the corresponding UL BWP corresponding to the active DL BWP; and select a first preamble from at least one preamble allocated for preamble transmission corresponding to the active DL BWP; a transmitter configured to transmit the first preamble, on the selected time-frequency resource, to a network device; and a receiver configured to receive a random access response (RAR) on the active DL BWP.

Abstract: An information reception apparatus, applicable to a terminal equipment, includes: a receiver configured to receive downlink control information DCI scheduling PDSCH(s) transmitted by a network device, the downlink control information indicating a first number of TC states; the first number being an integer greater than 1; and receive one or more than one PDSCH in the PDSCH(s) scheduled by the downlink control information, and wherein each PDSCH in the PDSCH(s) scheduled by the downlink control information includes PDSCH transmission occasions of the first number.

Abstract: Embodiments of this application provide a method and apparatus for testing stability of a vision system, which can test whether the vision system is stable, so as to report a fault in a timely manner when the vision system is unstable, thereby guaranteeing accuracy of a measurement result of the vision system. The method includes: obtaining first position information of a spot inspection piece in a current image under the vision system; performing affine transformation on a reference contour model of the spot inspection piece for a position of the spot inspection piece in the current image based on the first position information, and obtaining, through fitting, a current contour model of the spot inspection piece in the current image based on the reference contour model; and determining stability of the vision system based on the reference contour model and the current contour model.

Abstract: Embodiments of the present disclosure provide a speaker. The speaker may include a driving unit, a vibrating unit, a vibration transmission part, and a housing. The driving unit may be configured to generate vibrations under the drive of an electrical signal. The vibration transmission part may be connected to the driving unit and the vibrating unit, and configured to transmit the vibrations to the vibrating unit to produce sound radiated outwardly. The housing may be configured to accommodate the driving unit, the vibrating unit, and the vibration transmission part.

Abstract: A method for correcting translation errors when performing GUI globalization testing is disclosed. In one embodiment, such a method takes a screenshot of a graphical user interface (GUI). The method further enables a user to select text in the screenshot. In certain embodiments, one or more of the text and coordinates associated with the text are stored in picture attributes associated with the screenshot. In response to the selection, the method automatically retrieves a file in which at least some portion of the text is contained. The method automatically locates, within the file, the portion, and enables the user to update the portion in the file in order to update corresponding text in the graphical user interface. In certain embodiments, the method provides a probability percentage associated with the file that indicates a probability that the text in the file links to the selected text in the graphical user interface.

Abstract: The present disclosure application relates to a transducer, a loudspeaker, and an acoustic output device. The transducer comprises: a magnetic circuit system, the magnetic circuit system including a magnet assembly and a magnetically conductive cover, the magnetically conductive cover at least partially surrounding the magnet assembly; a vibration plate, the vibration plate including a first vibration plate and a second vibration plate, wherein the first vibration plate and the second vibration plate are respectively disposed on two sides of the magnet assembly along a vibration direction of the transducer, and the first vibration plate and the second vibration plate are configured to elastically support the magnet assembly; and a coil disposed in the magnetic circuit system, wherein the coil is within a magnetic field range of the magnet assembly, and an overall direct current (DC) impedance of the coil is in a range of 6?-10?.

Abstract: Pseudomonas and a use thereof are provided. The preservation number of the Pseudomonas is CGMCC No. 22583. The growth temperature of the Pseudomonas is 37-45° C. Under a medium-high temperature oil reservoir condition, the Pseudomonas can be denatured from a non-viscosity fluid to a multifunctional oil-extraction bacterial solution having both surface activity and viscoelasticity, and also has the functions of expanding the swept volume and improving the oil washing efficiency. The recovery ratio is increased by more than 20% in a physical simulation experiment.

Abstract: A data receiving and transmitting apparatus, configured in a terminal equipment, includes: a first receiver configured to receive first downlink control information and/or third downlink control information, the first downlink control information being used to schedule PDSCHs (Physical downlink shared channel), the third downlink control information being used to schedule PUSCH (Physical uplink shared channel) s; and a second receiver configured to receive one or more than one PDSCH in the PDSCHs scheduled by the first downlink control information, and/or, a transmitter configured to transmit one or more than one PUSCH in the PUSCHs scheduled by the third downlink control information, and a third receiver configured to receive a PDSCH configuration including a first configuration parameter used for configuring the number of repetitions and/or a SPS (Semi-persistent scheduling) configuration including a second configuration parameter used for configuring the number of repetitions.

Abstract: Disclosed is a method and Internet of Things (IoT) system for smart gas pipeline zoning safety supervision, the method includes: determining a plurality of sub-regions by dividing a target region based on a gas pipeline distribution data in the target region; obtaining gas sensor data of each point in the plurality of sub-regions on the gas pipeline; determining, based on the gas sensor data and pipeline data, an actual leakage point on the gas pipeline; determining, based on the gas sensor data and a historical maintenance record, a potential hidden danger point on the gas pipeline. The IoT system includes a government supervision management platform, a government supervision sensor network platform, a government supervision object platform, a gas company sensor network platform, and a gas device object platform that interact in sequence.

Abstract: Optical components such as components that emit light and components that detect light may be provided. Optical components that emit light may include displays having arrays of display pixels with respective light-emitting devices such as crystalline semiconductor light-emitting diodes. Optical components that detect light may include image sensors or other components with arrays of photodetectors. The light-emitting devices and photodetectors in the optical components may be overlapped by metalenses such as multielement metalenses. A multielement metalens may have a first metalens element formed from a first layer of nanostructures arranged and an overlapping second metalens element formed from a second layer of nanostructures. Light sources may be provided on a semiconductor and metalens nanostructures may be formed on an opposing surface of the semiconductor.

Abstract: A bone conductive sound generating device is provided and includes a sound generating mechanism and a fixing mechanism. The fixing mechanism is configured to act on the sound generating mechanism, such that the sound generating mechanism adheres to and fit with a back of an auricle of a user at least when the sound generating mechanism is in use. Accordingly, the present application may improve the sound quality of the bone conductive sound generating device, improving listening experience for the user.

Abstract: The present disclosure relates to a pair of glasses. The pair of glasses may include a frame, one or more lenses, and one or more temples. The pair of glasses may further include at least one low-frequency acoustic driver, at least one high-frequency acoustic driver, and a controller. The at least one low-frequency acoustic driver may be configured to output sounds from at least two first guiding holes. The at least one high-frequency acoustic driver may be configured to output sounds from at least two second guiding holes. The controller may be configured to direct the low-frequency acoustic driver to output the sounds in a first frequency range and direct the high-frequency acoustic driver to output the sounds in a second frequency range. The second frequency range may include one or more frequencies higher than one or more frequencies in the first frequency range.

Abstract: Embodiments of the present disclosure provide an earphone including: a sound generation component, including a transducer and a housing accommodating the transducer, the housing being provided with a sound outlet hole and a pressure relief hole, the sound outlet hole being provided on an inner side of the housing facing an auricle, and the pressure relief hole being provided on an other side of the housing; an ear hook configured to place the sound generation component near an ear canal without blocking the ear canal in a wearing state; and a microphone assembly at least including a first microphone and a second microphone provided in the sound generation component or the ear hook, the sound generation component or the ear hook being provided with a first sound receiving hole and a second sound receiving hole corresponding to the first microphone and the second microphone, respectively.

Abstract: The present application discloses a sound-output device, a vibration speaker configured to generate a bone-conducted sound wave; and an air-conducted speaker configured to generate an air-conducted sound wave. The vibration speaker is coupled to the air-conducted speaker through a mechanical structure; and the bone-conducted sound wave is input to the air-conducted speaker at least in part as an input signal.

Abstract: A control method is applied to a hybrid power system including an engine and a motor. A motor stator of the motor is connected to a driving shaft of a motor vehicle by means of a transmission mechanism such that, when rotated, the driving shaft drives the motor stator to rotate; the motor is used to determine output torque according to the rotating speed of the motor and transmit same to the driving shaft; the rotating speed of the motor is equal to the difference between the rotating speed of the motor rotor and the rotating speed of the motor stator. The method includes, according to operating parameters of the hybrid power system and operating parameters of the motor vehicle, controlling a motor controller to provide a drive signal to the motor stator such that the operating parameters of the motor meet a first preset formula.

Abstract: The present disclosure describes hybrid transactional and analytical processing (HTAP) techniques. A HTAP system comprises a first processing engine configured to perform online transactional processing, a second processing engine configured to perform online analytical processing, and a storage in communication with the first processing engine and the second processing engine. The first processing engine, the second processing engine, and the storage may be modularized and configured to be decoupled from each other. The system may be configured to capture data by the first processing engine in real time, organize the data in a first format in a first part of the storage for use by the first processing engine, propagate the data to a second part of the storage subsystem, and organize the data in a second format in the second part of the storage for use by the second processing engine.