Abstract: A loudspeaker and an electronic device are provided. The loudspeaker includes a basket and a coil. The coil includes an annular body and a lead wire connected with the annular body. The annular body is located on an inner side of the basket. The lead wire moves along with the annular body relative to the basket after an excitation signal is input into the loudspeaker. An avoidance groove is disposed on the basket. An orthographic projection of the lead wire along a vibration direction of the loudspeaker at least partially falls within the avoidance groove.

Abstract: The present disclosure relates to a technical field of optical lenses, and discloses a camera optical lens. The camera optical lens includes six lenses. An order of the six lenses is sequentially from an object side to an image side, which is shown as follows: a first lens having a negative refractive power, and a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The camera optical lens provided by the present disclosure has excellent optical characteristics, and further has characteristics of large aperture, wide-angle, and ultra-thin, especially suitable for mobile phone camera lens assemblies and WEB camera lenses, which are composed of camera components having high pixels, such as CCD and CMOS.

Abstract: The present disclosure provides methods and Internet of Things (IoT) systems for gas repair-reporting management based on a call center of smart gas. The method includes obtaining historical gas use data and historical gas repair-reporting data; generating, based on the historical gas use data and the historical gas repair-reporting data, first gas repair-reporting areas; generating, at least based on the historical gas use data and the historical gas repair-reporting data of the first gas repair-reporting areas, future gas repair-reporting data of the first gas repair-reporting areas; generating, based on the first gas repair-reporting areas and the future gas repair-reporting data of the first gas repair-reporting areas, second gas repair-reporting areas and future gas repair-reporting data corresponding to the second gas repair-reporting areas; and generating, based on the future gas repair-reporting data of the second gas repair-reporting areas, a maintenance personnel arrangement plan.

Abstract: A method and a system for place recommendation in the smart city based on an Internet of Things are provided. The method is implemented by a management platform. The method includes: obtaining place information and pedestrian flow information of places, the place information including a count of the places, at least one distance between the places, and control measures for entrances and exits in each place, and control measures for passages, and the control measures include whether the entrances, exits, and passages in each place are closed; determining a plurality of candidate control schemes for the places based on the place information and the pedestrian flow information of the places; and determining a target control scheme of the places based on the plurality of candidate control schemes.

Abstract: A wireless communication method and device and a communication system. The method includes: a terminal equipment receives a downlink data signal at a time unit n, the downlink data signal including activation/deactivation command acting on a secondary cell; and the terminal equipment performs at least one of the following processing: applying corresponding actions not earlier than a time unit n+k+1; applying actions related to a deactivation timer of the secondary cell at the time unit n+k+1; and applying actions related to CSI report after a time unit n+k, the CSI report being related to or corresponding to the activation/deactivation command, and the time unit referring to a time unit corresponding to transmission of an uplink control signal, the uplink control signal carrying HARQ-ACK information corresponding to the downlink data signal.

Abstract: Provides is an adaptive homomorphic encryption method based on a trusted execution environment. The method can achieve adaptive configuration and switching of homomorphic encryption parameters and schemes in a chip-level security environment. While ensuring the security of private data and computing results, the efficiency of a homomorphic encryption algorithm is improved, and the usability of different homomorphic encryption algorithms is expanded, thus greatly improving the practicability of a homomorphic encryption method, and promoting the implementation of a privacy protection technology with innovative ideas of integrating different technical routes.

Abstract: A failure detection and recovery device includes: a receiver configured to receive a layer 2 signaling for triggering cell switch; and processor circuitry configured for: performing failure detection after the receiver receives the layer 2 signaling, and applying stored configuration when a handover failure is detected, the stored configuration at least comprising configuration of a cell or cell group in a radio resource control reconfiguration message received and stored by the terminal equipment.

Abstract: Methods and systems are provided for improved electronic communication campaign technologies, which can automatically balance objectives or goals of an electronic communication campaign against an overall opt-out rate for the electronic communication campaign. An electronic communications frequency optimizer can generate individual contact frequencies for individual email recipients. Embodiments can avoid unnecessary or counterproductive communications while achieving overall campaign goals, and can use processes to improve the efficiency of systems. In some cases, embodiments cluster communication recipients into different groups based on their past actions, then optimizes the communication contact frequency on different groups, to avoid performing optimization directly on millions of recipients. Some embodiments automatically self-update, for example with recipients' recent responses, to generate and/or implement campaign communication schedules on an individual level.

Abstract: A repeater includes: a receiver configured to receive first information from a network device, the first information being used to indicate a first time and/or a first beam, the first beam being denoted by a first beam index, the first time comprising at least one time unit, the time unit being a slot and/or a symbol; and processor circuitry configured to determine to apply the first beam for reception or transmission on an access link over the first time at least according to the first information.

Abstract: Disclosed is crawling device for underwater inspection robots used on dams. The crawling device includes at least one set of wheeled leg mechanisms, an angle adjusting mechanism and a length adjusting mechanism, wherein an upper end of the length adjusting mechanism is connected with a robot; the wheeled leg mechanism includes a shell, adhesion units and a crawling wheel arranged under the shell; the adhesion unit includes a suction cup, which is arranged under the shell and adheres to a dam surface through negative pressure suction; the length adjusting mechanism is used for adjusting a distance between the wheeled leg mechanism and a robot body; and the angle adjusting mechanism is used for adjusting an angle of the wheeled leg mechanism with respect to a horizontal dam surface.

Abstract: An apparatus for configuring a cell, provided in a first network node, includes: a first transmitter configured to transmit configuration information on a group of candidate cells to a terminal equipment, the configuration information comprising cell identification information and information needed in accessing to a cell; and a second transmitter configured to transmit L1 signaling and/or L2 signaling to the terminal equipment, the L1 signaling and/or the L2 signaling indicating at least one cell in the group of candidate cells.

Abstract: Disclosed herein are a lower plastic member, an end cap assembly, and a battery cell. The battery cell includes an end cap assembly. The end cap assembly includes a lower plastic member. The lower plastic member includes a body including a first surface and a second surface arranged opposite to each other. The first surface is flat and is arranged to be fitted with a top cover.

Abstract: An information processing apparatus, for a terminal equipment, includes: a receiver configured to receive first indication information transmitted by a network side device, the first indication information being used to indicate identification information of a first cell, and receive a first synchronization signal block (SSB) of the first cell transmitted by the network side device; and processor circuitry configured to perform downlink reception of a reference signal of a second cell; wherein the reference signal of the second cell and the first synchronization signal block of the first cell are in a quasi-colocated (QCL) relationship.

Abstract: A loudspeaker and an electronic device are provided. The loudspeaker includes a basket and a coil. The coil includes an annular body and a lead wire connected with the annular body. The annular body is located on an inner side of the basket. The lead wire moves along with the annular body relative to the basket after an excitation signal is input into the loudspeaker. A soldering pad is disposed on the basket. The lead wire is provided with a first end close to the annular body and a second end away from the annular body. The second end is fixed on the soldering pad. A ratio of a length of the lead wire to a maximum amplitude of a movement of the coil relative to the basket is in a range of 8-75. The technical problem of stress concentration in the lead wire is improved.

Abstract: For the organic compound in the present disclosure, by the combination of an anthracene ring and a specific substituent group, a structure of the organic compound has good hole and electron mobility and injection characteristics, and the stability of the compound may be improved. A boron-nitrogen compound provided in the present disclosure has excellent light-emitting characteristics due to a narrow full width at half maximum. When an organic light-emitting device is fabricated by using both the boron-nitrogen compound and the organic compound provided in the present disclosure as a light-emitting layer material, it may be possible to effectively enable the organic light-emitting device to have a relatively low driving voltage and maintain the stability of the voltage, the light-emitting efficiency may be improved, and the service life of the device can also be relatively long.

Abstract: The present disclosure relates to a magnetic circuit assembly of a bone conduction speaker. The magnetic circuit assembly may generate a first magnetic field. The magnetic circuit assembly may include a first magnetic element, and the first magnetic element may generate a second magnetic field. The magnetic circuit may further include a first magnetic guide element and at least one second magnetic element. The at least one second magnetic element may be configured to surround the first magnetic element and a magnetic gap may be configured between the second magnetic element and the first magnetic element. A magnetic field strength of the first magnetic field within the magnetic gap may exceed a magnetic field strength of the second magnetic field within the magnetic gap.

Abstract: An organic electroluminescent device includes a substrate, a first electrode, an organic light-emitting functional layer and a second electrode. The first electrode is located on the substrate, the organic light-emitting functional layer is located on the first electrode, and the second electrode is located on the organic light-emitting functional layer. The organic light-emitting functional layer includes a light-emitting layer. The light-emitting layer includes a boron-nitrogen compound. A boron-nitrogen parent nucleus of the boron-nitrogen compound defines that arylamine groups and a thiophene segment are paired with and connected to characteristic groups that are located on an edge of the boron-nitrogen compound. In this way, the boron-nitrogen compound may have good matching with an anthracene-based host material, which is conducive to the transmission of electrons and holes.

Abstract: Augmented reality (AR) systems, devices, media, and methods are described for capturing and presenting effort put into generating a handcrafted AR experience. AR object generation data is captured during the generation of a handcrafted AR object. The AR object generation data is then processed to generate proof of effort data for inclusion with the handcrafted AR object. Examples of proof of effort include a time lapse view of the steps taken during generation of the AR object and statistics such as total time spent, number of images or songs considered for selection, number of actions implemented, etc.

Abstract: Methods and apparatuses for transmitting and receiving downlink control information and a communication system. The apparatus for transmitting downlink control information (DCI) includes: a first transmitter configured to transmit to a terminal equipment first DCI indicating an interrupted first time-frequency resource used for transmitting uplink data, the first DCI at least comprising a first field indicating a position of the first time-frequency resource.

Abstract: A method and apparatus for determining transmission parameters. The apparatus includes: to receive at least two TCI state related parameters or signaling configured or indicated by a network device; and to determine a transmission parameter of at least one transmission occasion of a transport block according to a related parameter or signaling containing a TCI state mapping pattern, and a parameter or signaling indicating that DCI signaling does not contain a TCI field or a parameter or signaling indicating that DCI signaling contains a TCI field, in the at least two TCI state related parameters or signaling, or determine a transmission parameter of at least one transmission occasion of a transport block according to a related parameter or signaling containing a TCI state mapping pattern, and DCI signaling not containing a TCI field, in the at least two TCI state related parameters or signaling.