Abstract: A flip-chip light-emitting device includes a transparent substrate, an epitaxial structure, a transparent dielectric layer, a plurality of first contact electrodes, multiple second contact electrodes, a metallic reflection layer, a first insulating layer, and an electrode pad region. The epitaxial structure is formed on the transparent substrate, and includes a first type semiconductor layer, an active layer, and a second type semiconductor layer. The first and second contact electrodes are embedded in the transparent dielectric layer, and respectively connected to the first and second type semiconductor layers. The second and first contact electrodes are arranged in an array. The second contact electrodes are disposed in a region perpendicularly below the first pad and are distributed along a circular ring that is concentric with one of the first contact electrodes. A light emitting module includes a circuit board, and the flip-chip light emitting device is mounted on the circuit board.

Abstract: The present disclosure relates to an optical fiber image correction method, device and computer readable storage medium. The method comprises: obtaining a current optical fiber image and a central reference position of an optical fiber; in the current optical fiber image, correcting a central position of each optical fiber unit in the current optical fiber image according to a position difference condition between the central reference position of the optical fiber and a target position determined based on gray values in a neighboring range of the central reference position of the optical fiber; correcting brightness of the current optical fiber image that has completed a position correction according to a currently determined brightness correction coefficient.

Abstract: The light-emitting device includes a substrate, a light-emitting chip unit formed on the substrate and including multiple chips, an isolation groove extending in a first direction and separating two adjacent ones of the chips, and a bridging structure. The isolation groove is defined by a bottom and two sidewalls and has a first groove section and a second groove section arranged in the first direction. The first groove section has a width in a width direction perpendicular to the first direction that is greater than a width of the second groove section in the width direction. At the first groove section, one of the sidewalls has a curved portion. The bridging structure is formed on the bottom and the sidewalls, covers the curved portion, and electrically connects the two adjacent ones of the chips.

Abstract: The present invention relates to the technical field of mine fire prevention and extinguishing, in particular to a liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and an application method, comprising a liquid nitrogen storage tank, a liquid nitrogen direct injection system and a low-temperature foaming system, wherein the liquid nitrogen storage tank communicates with a liquid nitrogen pressurizing device through a main pipeline; a temperature control unit is arranged on the main pipeline; and the liquid nitrogen pressurizing device is connected with the liquid nitrogen direct injection system and the low-temperature foaming system, respectively, liquid nitrogen is directly injected into a foam liquid, to prepare a low-temperature foam type fire preventing and extinguishing material by means of forced convection, membrane boiling, explosion boiling and nucleate boiling between the liquid nitrogen and water.

Abstract: The present invention relates to a page switching method and apparatus and an electronic device, and belongs to the field of communications technologies. The method includes: receiving a first input of a user in a case that a first function page of a target application program is displayed and N first labels are displayed, where the first function page displays the N first labels, each first label corresponds to a first identifier in the target application program, and the first input is an input performed by the user on a target label of the N first labels; and in response to the first input, switching the first function page to a second function page, where the second function page is a function page of the first application function in the target application program, and the first application function is one of M application functions corresponding to the target identifier.

Abstract: Provided are the method and device for genetic map construction and the method and device for haplotype determination of a single cell.

Abstract: Provided are the method and device for genetic map construction and the method and device for haplotype determination of a single cell.