Abstract: Provided are a new vertical cavity surface emitting laser structure and a manufacturing method thereof. The structure includes a substrate layer, a lower N-type DBR, an active region, an upper N-type DBR and a mixed dielectric DBR sequentially arranged from bottom to top, where a second-class tunnel junction is arranged on one side of the active region close to the upper N-type DBR, where the second-class tunnel junction is embedded in a bottom of the upper N-type DBR and surrounded by the upper N-type DBR, and the substrate layer, the lower N-type DBR, the active region, the upper N-type DBR, the mixed dielectric DBR and the second-class tunnel junction are all coaxial elliptical cylinders; negative electrodes are arranged on the lower N-type DBR, and positive electrodes are arranged on the upper N-type DBRs substrate layer.

Abstract: The intelligent and efficient fire extinguishing device mainly comprises an intelligent sensing system, a power-driven system, an intelligent control system, a foam system, a fixation system, a support lifting system and a protection system. The intelligent sensing system is used to measure the ambient wind direction and the internal flow field of the tank to determine the fire extinguishing location. The intelligent control system controls the power-driven system to reach the designated location based on the intelligent sensing system. The foam system is used to spray foam. The fixation system is used to fix the device. The support lifting system is used to lift or rotate the cooling nozzle and fire-fighting water cannon. The protection system is used to protect the device. The movement, positioning and extinguishing of the fire extinguishing device are unitedly controlled by the intelligent control system. The invention can achieve intelligent fire extinguishment in storage tanks.

Abstract: Systems and methods for image processing are provided. The systems obtain a plurality of images of a target subject that are captured consecutively over time. The target subject is injected with tracer and including a target body portion. For each of the plurality of images, the systems generate a sub-image of the target body portion by segmenting the image and transform the sub-image to generate a transformed sub-image in a standard space based on a template image of the target body portion. The standard space includes a plurality of template images of a plurality of body portions. The systems further determine an uptake variation curve indicating a change of tracer uptake in the target body portion over the time based on the transformed sub-images corresponding to the plurality of images.

Abstract: The application provides a method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma, including: using a mixture of hydrogen rich gas and argon gas to generate hydrogen plasma for denitrification of molten steel during at least one of arc furnace smelting, ladle refining, VOD refining, and RH refining. The method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma provided in the application can effectively remove nitrogen from the molten steel by spraying a mixture of argon gas and hydrogen rich gas into the molten steel through a hollow electrode and plasma torch, reducing electrode consumption and electricity consumption per ton steel, and also reducing arc radiation heat loss, improving heating rate, thereby shortening smelting time and reducing production costs.

Abstract: The present disclosure provides a docking station and a cleaning system, where the docking station includes: at least one accommodating chamber, and a docking chamber for docking of a self-moving cleaning apparatus; and a height of the docking station is less than 350 mm. The docking station in the embodiments of the present disclosure has a smaller height and can be placed in a low space, improving adaptability of the docking station. Moreover, the integrated box is movable, and if the integrated box is placed in an embedded mode, replacement of consumables is realized by moving the integrated box, without the need to move the docking station out of the embedded space, thereby making the replacement of consumables to be more convenient.

Abstract: The present invention discloses a blockchain-based Industrial Internet of Things (IIoT) data management system and method, where the system includes a physical layer, an edge layer, a network interface layer and a cloud layer; the physical layer includes a plurality of different IIoT device monitoring systems; the edge layer is configured to build an IIoT blockchain network; the cloud layer includes cloud servers which are configured to be deployed in a real blockchain network environment to improve performance and effectiveness of the blockchain network. The present invention can effectively solve the problem of parameter optimization lag in industrial production applications.

Abstract: A video data processing method includes receiving compressed video data that has first resolution, obtaining first texture data having the first resolution based on one or more first video frames in the compressed video data, generating second texture data having second resolution higher than the first resolution based on the first texture data, and generating one or more second video frames having the second resolution through a rendering operation and based on the second texture data.

Abstract: A wafer boat temporary storage device for temporarily storing a wafer boat in a semiconductor processing device includes two carrying platforms arranged oppositely and configured to carry two ends of the wafer boat in a length direction of the wafer boat, respectively. The wafer boat includes two positioning parts arranged at two ends in the length direction and spaced apart in a width direction of the wafer boat. Each carrying platform includes a first positioning structure and a second positioning structure. The first positioning structure is configured to make rolling contact with two sides of the two positioning parts at one end of the wafer boat that face toward or away from the two positioning parts at the other end of the wafer boat in the length direction to perform alignment between the wafer boat and the wafer boat temporary storage device in the length direction.

Abstract: Disclosed are a vehicle floor, a body-in-white and a vehicle. The vehicle floor includes: a front floor and a rear floor provided in sequence from a vehicle head to a vehicle tail of a vehicle body, and a connecting assembly. The rear floor includes a first area obtained through a fixed mold and a second area obtained through a variable mold, and the second area of the rear floor is connected to the front floor. The connecting assembly is provided on the second area of the rear floor and is configured to connect to a battery pack of a vehicle, and a position of the connecting assembly on the second area is determined by a size of the battery pack and a wheel base of the vehicle body.

Abstract: Provided is a display apparatus. The display apparatus includes: a liquid crystal display panel and a backlight module, wherein a first sealed air cavity is formed inside the liquid crystal display panel, and the backlight module is located on one side of the liquid crystal display panel and forms a second sealed air cavity with the liquid crystal display panel; and a sound production board and a sound production exciter, wherein the sound production board is fixed onto the surface of the backlight module away from the liquid crystal display panel, a vibration output terminal of the sound production exciter is fixed onto the surface of the sound production board away from the backlight module, and the sound production exciter is used for exciting, by means of the vibration output terminal, the sound production board to vibrate, so as to drive the backlight module to vibrate.

Abstract: A display apparatus includes a liquid crystal display panel and a backlight module, a first sealed air cavity formed inside the liquid crystal display panel, and the backlight module being located on one side of the liquid crystal display panel and forming a second sealed air cavity with the liquid crystal display panel; and a sound-emitting board and a sound-emitting exciter, the sound producing board being fixed to the surface of the backlight module far away from the liquid crystal display panel, and a vibration output terminal of the sound-emitting exciter being fixed to the surface of the sound-emitting board far away from the backlight module.

Abstract: Embodiments of the present disclosure provide a shielding structure for blocking electromagnetic waves, and a circuit board. The shielding structure includes at least one strip-shaped section disposed at a peripheral area of a connection terminal of a signal line in the circuit board and configured to block the electromagnetic waves with a preset wavelength, and the shielding structure is provided with an outlet for allowing the signal line to be led out.