Abstract: A tiled display screen, a display method, a tiled display system, a computer device, a computer non-transitory readable storage medium are provided. The tiled display screen includes: a plurality of display modules each including a receiver, a processor, and at least one display panel. the processor is configured to acquire heat accumulation data of each display region in the display module; determining target gray-scale compensation data of each pixel according to the heat accumulation data, a heat influence coefficient among different display regions, first gray-scale data of the pixel corresponding to the data to be displayed, and a pre-generated gray-scale compensation table; and compensating a gray scale of the pixel according to the target gray-scale compensation data.

Abstract: A method for preparing multi-component polymers through post-polymerization modification, used to functionalize polysulfonyl imidate polymer including a dispersing polymer reactant, an electrophilic substitution reagent and a catalyst in an organic dispersant; adding acid-binding agent to react at room temperature for 4-48 h; obtaining the precipitate when the reaction finished; washing and drying the precipitate to get the functionalized multi-component polymers.

Abstract: The present disclosure provides a watermark extraction method, a model training method, a watermark addition method and an electronic device. The watermark extraction method includes the following steps acquiring an image to be processed embedded with a watermark, wherein the watermark includes a plurality of positioning blocks and a plurality of information blocks; identifying the image to be processed by a first identification model to identify at least part of positioning blocks among the plurality of the positioning blocks; deforming the image to be processed according to a current position relationship of the at least part of positioning blocks and a reference position relationship of the at least part of positioning blocks; extracting the plurality of information blocks from the deformed image to be processed; and identifying the plurality of the information blocks by a second identification model to obtain the watermark carried by the plurality of information blocks.

Abstract: A backlight adjustment method and device for a display device, a system, a storage medium and a product. The backlight adjusting method includes: inputting a plurality of frames of images to a display device; acquiring a plurality of backlight matrices corresponding to the plurality of frames of images, wherein the backlight matrix includes a plurality of backlight values; acquiring a connected domain consisting of the backlight value which is a positive number according to the backlight matrix; and determining an adjustment scheme of the backlight value at a boundary position of the connected domain according to the connected domain.

Abstract: Provided is a method of processing an image, an electronic device, and a storage medium. The method of processing an image includes: encoding a first to-be-encoded information corresponding to a display apparatus, so as to obtain a first encoded information; adjusting a pixel value of at least one first predetermined region of a to-be-encoded image according to the first encoded information, so as to obtain a first encoded image, wherein the to-be-encoded image corresponds to a target image; and fusing the target image with the first encoded image to obtain a fused image.

Abstract: Provided is a method for processing a video. The method for processing the video can segment an initial video into a plurality of video clips, and calculate color temperatures of the plurality of video clips. For each target video clip in the plurality of video clips, the method can determine a color temperature adjustment coefficient of the target video clip based on a color temperature of the target video clip and a color balance correction coefficient thereof, and adjust a color temperature of at least one video frame in the target video clip by using the color temperature adjustment coefficient.

Abstract: A tiled display screen, a display method, a tiled display system, a computer device, a computer non-transitory readable storage medium are provided. The tiled display screen includes: a plurality of display modules each including a receiver, a processor, and at least one display panel. the processor is configured to acquire heat accumulation data of each display region in the display module; determining target gray-scale compensation data of each pixel according to the heat accumulation data, a heat influence coefficient among different display regions, first gray-scale data of the pixel corresponding to the data to be displayed, and a pre-generated gray-scale compensation table; and compensating a gray scale of the pixel according to the target gray-scale compensation data.

Abstract: The present application relates to the field of sewage treatment, and specifically relates to a shortcut nitrification method for sewage treatment. The shortcut nitrification method for sewage treatment provided in the present application comprises the following steps: adding a shortcut nitrification accelerator to sewage. The shortcut nitrification accelerator comprises 2-30 parts by weight of an inorganic hydroxylamine and 0.1-20 parts by weight of an inorganic ammonium salt. The pH of sewage is 6.5-6.95. The shortcut nitrification method for sewage treatment provided in the present application can significantly increase nitrite accumulation rate, and control a biological nitrification reaction at a stage of nitrite accumulation, thereby facilitating a wastewater denitrification process, improving the wastewater treatment effect, and having good engineering application value.

Abstract: Provided is a method for processing a video. The method for processing the video can segment an initial video into a plurality of video clips, and calculate color temperatures of the plurality of video clips. For each target video clip in the plurality of video clips, the method can determine a color temperature adjustment coefficient of the target video clip based on a color temperature of the target video clip and a color balance correction coefficient thereof, and adjust a color temperature of at least one video frame in the target video clip by using the color temperature adjustment coefficient.

Abstract: Laser Grid Structures for Wireless High Speed Data Transfers Disclosed herein are various embodiments for high performance wireless data transfers. In an example embodiment, laser chips are used to support the data transfers using laser signals that encode the data to be transferred. The laser chip can be configured to (1) receive a digital signal and (2) responsive to the received digital signal, generate and emit a variable laser signal, wherein the laser chip comprises a laser-emitting epitaxial structure, wherein the laser-emitting epitaxial structure comprises a plurality of laser-emitting regions within a single mesa structure that generate the variable laser signal. Also disclosed are a number of embodiments for a photonics receiver that can receive and digitize the laser signals produced by the laser chips. Such technology can be used to wireless transfer large data sets such as lidar point clouds at high data rates.

Abstract: The present disclosure relates to a scraper component of a three-dimensional printing device, which includes a scraper, a fixing frame, a pulley and a sliding rail, the scraper is installed on the fixing frame, and the pulley is set on at least one end of the fixing frame; the sliding rail has a horizontal first rail and a tilted and movable second rail, and a first end of the second rail is connected to the first rail and a second end is located on the first rail; when the pulley slides from a middle to an end of the first rail, the pulley enters the second rail from the first end and leaves the second rail from the second end then comes back to the first rail; when the pulley slides from an end to a middle of the first rail, the pulley passes through the second rail from below.

Abstract: The present disclosure provides a method for preparing multi-component polymers through post-polymerization modification, used to functionalize polysulfonyl imidate polymer including a dispersing polymer reactant, an electrophilic substitution reagent and a catalyst in an organic dispersant; adding acid-binding agent to react at room temperature for 4-48 h; obtaining the precipitate when the reaction finished; washing and drying the obtained precipitate to get the functionalized multi-component polymers. The present disclosure involves a low polymerization temperature, allowing for the reaction to occur at room temperature. Additionally, the conversion rate is high, and the applicable electrophilic substitution monomer reagents have a wide selection. Besides that, the synthesis cost of the reaction is low due to the widespread availability of common chemical reagents such as catalysts, organic dispersants, acid binding agents, and other reaction reagents.

Abstract: Disclosed herein are various embodiments for high performance wireless data transfers. In an example embodiment, laser chips are used to support the data transfers using laser signals that encode the data to be transferred. The laser chip can be configured to (1) receive a digital signal and (2) responsive to the received digital signal, generate and emit a variable laser signal, wherein the laser chip comprises a laser-emitting epitaxial structure, wherein the laser-emitting epitaxial structure comprises a plurality of laser-emitting regions within a single mesa structure that generate the variable laser signal. Also disclosed are a number of embodiments for a photonics receiver that can receive and digitize the laser signals produced by the laser chips. Such technology can be used to wireless transfer large data sets such as lidar point clouds at high data rates.

Abstract: Disclosed herein are various embodiments for high performance wireless data transfers. In an example embodiment, laser chips are used to support the data transfers using laser signals that encode the data to be transferred. The laser chip can be configured to (1) receive a digital signal and (2) responsive to the received digital signal, generate and emit a variable laser signal, wherein the laser chip comprises a laser-emitting epitaxial structure, wherein the laser-emitting epitaxial structure comprises a plurality of laser-emitting regions within a single mesa structure that generate the variable laser signal. Also disclosed are a number of embodiments for a photonics receiver that can receive and digitize the laser signals produced by the laser chips. Such technology can be used to wireless transfer large data sets such as lidar point clouds at high data rates.

Abstract: The present application relates to the field of sewage treatment, and specifically relates to a shortcut nitrification method for sewage treatment. The shortcut nitrification method for sewage treatment provided in the present application comprises the following steps: adding a shortcut nitrification accelerator to sewage. The shortcut nitrification accelerator comprises 2-30 parts by weight of an inorganic hydroxylamine and 0.1-20 parts by weight of an inorganic ammonium salt. The pH of sewage is 6.5-6.95. The shortcut nitrification method for sewage treatment provided in the present application can significantly increase nitrite accumulation rate, and control a biological nitrification reaction at a stage of nitrite accumulation, thereby facilitating a wastewater denitrification process, improving the wastewater treatment effect, and having good engineering application value.

Abstract: Provided are a light-curing 3D printing device and a printing method. The device includes a housing, the housing being suitable for containing a liquid photosensitive resin, and one end surface of the housing including a light-transmitting panel; a carrying platform, which is disposed in the housing and is used to carry a molding workpiece; a drive mechanism, which is used to drive the carrying platform to move closer to and away from the light-transmitting panel; an optical system, which includes an exposure device that is located outside the housing and is opposite to the light-transmitting panel, the exposure device being suitable for emitting a light beam pattern from a light emitting side, and a layer of the liquid photosensitive resin, which is in the housing and is closely attached to the light-transmitting panel, can be controllably cured; and a pressure adjusting element.

Abstract: Provided are a photocuring-type three-dimensional printing device capable of automatic continuous printing, and a system. A three-dimensional model is automatically composed, the composed three-dimensional model is automatically printed and pick-up collected, and a material tank can also be automatically replenished when replenishment is needed, thereby implementing automatic continuous printing without manual intervention.

Abstract: Provided is a protein having Toxoplasma immunogenicity, the protein being a cyclophilin mutant protein and consisting of the amino acid sequence as shown in SED 2. Further provided is a nucleic acid that may encode a protein having Toxoplasma immunogenicity, which has the nucleic acid sequence as shown in SEQ ID NO. 1. Further provided is a vaccine, which is obtained by double-digesting a Toxoplasma antigen gene and then linking the same to a prokaryotic expression vector such as pET28a, and transforming the same into a prokaryotic expression engineering strain such as BL21(DE3), thereby inducing the high-efficiency expression thereof, wherein the inducing the high-efficiency expression thereof, wherein the purified protein is a soluble protein which maintains specific immunogenicity thereof.

Abstract: Disclosed herein are various embodiments for high performance wireless data transfers. In an example embodiment, laser chips are used to support the data transfers using laser signals that encode the data to be transferred. The laser chip can be configured to (1) receive a digital signal and (2) responsive to the received digital signal, generate and emit a variable laser signal, wherein the laser chip comprises a laser-emitting epitaxial structure, wherein the laser-emitting epitaxial structure comprises a plurality of laser-emitting regions within a single mesa structure that generate the variable laser signal. Also disclosed are a number of embodiments for a photonics receiver that can receive and digitize the laser signals produced by the laser chips. Such technology can be used to wireless transfer large data sets such as lidar point clouds at high data rates.

Abstract: Disclosed herein are various embodiments for high performance wireless data transfers. In an example embodiment, laser chips are used to support the data transfers using laser signals that encode the data to be transferred. The laser chip can be configured to (1) receive a digital signal and (2) responsive to the received digital signal, generate and emit a variable laser signal, wherein the laser chip comprises a laser-emitting epitaxial structure, wherein the laser-emitting epitaxial structure comprises a plurality of laser-emitting regions within a single mesa structure that generate the variable laser signal. Also disclosed are a number of embodiments for a photonics receiver that can receive and digitize the laser signals produced by the laser chips. Such technology can be used to wireless transfer large data sets such as lidar point clouds at high data rates.