Abstract: A method and an apparatus for connecting through on-vehicle Bluetooth, and a storage medium includes: acquiring a first face image of a driver in response to an on-vehicle Bluetooth apparatus being on; determining a first face identifier corresponding to the driver by performing face recognition on the first face image; querying a first correspondence according to the first face identifier, in which the first correspondence indicates a correspondence between face identifiers and Bluetooth identifiers of terminals; in response to determining a first Bluetooth identifier matching the first face identifier, establishing, according to the first Bluetooth identifier, a Bluetooth connection between the on-vehicle Bluetooth apparatus and a first terminal Bluetooth apparatus corresponding to the first Bluetooth identifier.

Abstract: A quasi-macroscopic cold field emission electron gun and a manufacturing method thereof are provided, which includes a filament device and an electron gun base, wherein the filament device includes a cold cathode filament and a conductive capillary tube, the cold cathode filament passes through one end of the conductive capillary tube and is crimped through a pressing groove device, the other end of the conductive capillary tube is connected to the electron gun base, and the end of the cold cathode filament is the electron emission end. Through the coaxial nesting and pressing deformation of quasi-macroscopic carbon fiber and metal tube and using of the non welding electrical connection method, this technology avoids the problem that it is not easy to form a reliable electrical connection during the welding process due to the poor wettability between carbon fiber and metal.

Abstract: A method and apparatus for executing an instruction, an electronic device, a computer readable storage medium, and a computer program product are provided. The method includes receiving a transmitted actual voice instruction; determining a target location where the actual voice instruction is released; acquiring a target valid instruction set corresponding to the target location; and executing an operation corresponding to the actual voice instruction, in response to the actual voice instruction being a target valid instruction in the target valid instruction set.

Abstract: A method and an apparatus for connecting through on-vehicle Bluetooth, and a storage medium includes: acquiring a first face image of a driver in response to an on-vehicle Bluetooth apparatus being on; determining a first face identifier corresponding to the driver by performing face recognition on the first face image; querying a first correspondence according to the first face identifier, in which the first correspondence indicates a correspondence between face identifiers and Bluetooth identifiers of terminals; in response to determining a first Bluetooth identifier matching the first face identifier, establishing, according to the first Bluetooth identifier, a Bluetooth connection between the on-vehicle Bluetooth apparatus and a first terminal Bluetooth apparatus corresponding to the first Bluetooth identifier.

Abstract: The disclosure provides a nanolaser based on a depth-subwavelength graphene-dielectric hyperbolic dispersive cavity, comprising a pumping light source and the depth-subwavelength graphene-dielectric hyperbolic dispersive cavity; wherein the depth-subwavelength graphene-dielectric hyperbolic dispersive cavity is a spherical or hemispherical hyperbolic dispersive microcavity formed by alternately wrapping a dielectric core with graphene layers and dielectric layers.

Abstract: The disclosure provides a nanolaser based on a depth-subwavelength graphene-dielectric hyperbolic dispersive cavity, comprising a pumping light source and the depth-subwavelength graphene-dielectric hyperbolic dispersive cavity; wherein the depth-subwavelength graphene-dielectric hyperbolic dispersive cavity is a spherical or hemispherical hyperbolic dispersive microcavity formed by alternately wrapping a dielectric core with graphene layers and dielectric layers.