Abstract: Embodiments of this application relate to the field of antenna technologies, and disclose a terminal antenna system and an electronic device, to effectively reduce mutual impact between adjacent antennas. A specific solution is as follows: The terminal antenna system includes: a first radiator and a second radiator, where a first end of the first radiator is coupled to a first end of the second radiator through a gap. A first feed point is provided at a second end, away from the second radiator, of the first radiator, and a first ground point is further provided on the first radiator. A second feed point is provided at a second end of the second radiator, and the second end of the second radiator is an end away from the first radiator.

Abstract: An electronic paper includes a base substrate, and a plurality of pixel units each including a pixel driver circuit and a display unit. The display unit includes a first electrode, an electronic ink layer, and a second electrode arranged in a stack. Pixel driver circuits of pixel units in a same column are connected to a same data line, and pixel driver circuits of pixel units in different columns are connected to different data lines. The plurality of pixel units are divided into a plurality of pixel unit groups arranged in an array. Pixel driver circuits in a same pixel unit group are connected to different gate lines. The electronic paper includes a plurality of first connection pads on the base substrate. Data lines connected to at least two columns of pixel driver circuits connected to different gate lines are connected to a same first connection pad.

Abstract: A pixel structure, an array substrate, a display panel and a display device. The pixel structure includes a gate line (10), a data line (20), a gate (30), a first electrode (40), a second electrode (50), and a third electrode (60); the gate (30) is connected to the gate line (10); the first electrode (40) is connected to the data line (20); and the second electrode (50) has a first portion and a second portion that are distributed in the extending direction of the second electrode, wherein the first portion of the second electrode (50) cooperates with the first electrode (40) and the gate (30) to form a first thin film transistor, and the second portion of the second electrode (50) cooperates with the third electrode (60) and the gate (30) to form a second thin film transistor.

Abstract: An electronic paper display device includes a first base substrate, and a plurality of sub-pixels on the first base substrate. Each sub-pixel includes: a first electrode on the first base substrate; a second electrode on the first electrode and including a plurality of grooves passing through thereof, the orthographic projection of the grooves on the first base substrate falling within the orthographic projection of the first electrode on the first base substrate; a microstructure on the side of the second electrode away from the first base substrate and including a paper film microcavity and a plurality of charged particles in the paper film microcavity, where the plurality of charged particles include a plurality of first color charged particles and a plurality of second color charged particles with opposite electrical properties; and a third electrode on the side of the microstructure away from the second electrode.

Abstract: A display substrate includes a base substrate, the base substrate including a display region, and the display region including a plurality of pixel regions; and at least four conductive layers arranged in a stacked manner, located on the base substrate, wherein any two adjacent conductive layers are arranged in an insulated manner, each of the conductive layers includes conductive patterns located in the pixel regions, the conductive patterns of any two adjacent conductive layers in the same pixel region form a storage capacitor (e.g., Cst1, Cst2 and Cst3), and in a direction perpendicular to the base substrate, projections of the at least four conductive layers on the base substrate overlap. A manufacturing method of a display substrate and a display device are further provided.

Abstract: An electronic paper is provided. An array substrate in the electronic paper includes a base, as well as a pixel electrode, a thin film transistor, and a shielding electrode that are disposed on the base. An orthographic projection of an active layer in the thin film transistor on the base is within an orthographic projection of the shielding electrode on the base and is within an orthographic projection of the pixel electrode on the base.

Abstract: The present disclosure is related to a bimetallic monatomic nano-enzyme electrochemical sensor, and a preparation method therefor and an application thereof. The bimetallic monatomic nano-enzyme electrochemical sensor comprises a working electrode, a counter electrode, a reference electrode and an electric signal control device; the working electrode is formed by coating a gallium-copper bimetallic monatomic nano-enzyme and a conductive carbon paste on a flexible carrier; and according to the present disclosure, the electrochemical sensor is constructed by loading a catalytic material of the gallium-copper bimetallic monatomic nano-enzyme on an electrode substrate material, which is used for detecting a volatile amine content in fresh meat, so as to detect a freshness of fresh meat.

Abstract: A simulation test method based on a rotating prism Lidar and a device thereof are provided. The simulation test method based on the rotating prism Lidar includes: obtaining a scanning trajectory model of a Lidar signal on an imaging plane, and the Lidar signal is emitted by a rotating prism Lidar; acquiring an attenuation coefficient of the Lidar signal propagating in a preset weather environment, and determining an echo signal model of the Lidar signal in the preset weather environment according to the attenuation coefficient; performing a simulation test on the rotating prism Lidar based on the scanning trajectory model and the echo signal model, and achieving the simulation test on a working process of the rotating prism Lidar.

Abstract: An array substrate has a plurality of sub-pixel regions. The array substrate includes: a substrate; a first transistor and a second transistor that are disposed on a side of the substrate and located in each sub-pixel region; and a first pixel electrode and a second pixel electrode that are disposed on the side of the substrate and located in the sub-pixel region. The first pixel electrode and the second pixel electrode are insulated from each other; the first pixel electrode is electrically connected to the first transistor, and the second pixel electrode is electrically connected to the second transistor.

Abstract: An electronic paper is provided. An array substrate in the electronic paper includes a base, as well as a pixel electrode, a thin film transistor, and a shielding electrode that are disposed on the base. An orthographic projection of an active layer in the thin film transistor on the base is within an orthographic projection of the shielding electrode on the base and is within an orthographic projection of the pixel electrode on the base.

Abstract: A driving method for a display panel (100), a driving apparatus (200) for a display panel, and a display apparatus. The driving method includes: when in a first driving mode, determining a refresh region and a non-refresh region in a display panel (100) (S10); and inputting a first clock signal to a gate drive circuit (110) according to the refresh region and the non-refresh region, such that the gate drive circuit (110) outputs a first gate scan signal to a gate line in the non-refresh region, and outputs a second gate scan signal to a gate line in the refresh region (S20). The duration in which an active level of a first gate scan signal is maintained is less than the duration in which an active level of a second gate scan signal is maintained.

Abstract: Disclosed are a visualization grouting device for coal and rock fissures and a test method, a test device including a visualization fissure grouting box body, a box body bracket, a grouting device and a monitoring device. A bottom plate is divided into four identical areas, rubber cushion blocks with different specifications are arranged to simulate different fissure widths and tortuosity, artificial protolith thin film is pasted inside, and a grouting hole and a plurality of pressure measuring holes are arranged in the center of the upper top plate. In the present disclosure, the grouting process of fissures under different grouting conditions, such as different fissure widths, roughness, grouting resistance and tortuosity of pore channels can be simulated, the grouting under different fissure conditions can be simultaneously simulated, and the differences of different grouting diffusion forms can be clearly and intuitively analyzed and compared through the visualization box body.

Abstract: The invention relates to a method for preparing taurine, methyltaurate and methyltaurine by using ethylene oxide, including: preparing taurine by an ethylene oxide process, and obtaining a taurine mother liquor; mixing the taurine mother liquor with methylamine, adding an alkaline catalyst, and carrying out an amination reaction to obtain a reaction solution; evaporating ammonia and methylamine from the reaction solution to obtain a methyltaurate solution; preparing a methyltaurine solution by using the methyltaurate solution; and concentrating and crystallizing the methyltaurine solution to obtain methyltaurine. The method of the invention avoids the problem of recycling a mother liquor in the existing taurine production to reduce the generation possibility of impurities, and meanwhile, can achieve quantitative conversion to methyltaurate and methyltaurine by controlling a molar ratio of raw materials to the catalyst in the reaction.

Abstract: A display substrate, including: a base substrate; a plurality of gate lines and a plurality of data lines that intersect to surround a plurality of pixels; wherein each pixel includes a first thin film transistor, a second thin film transistor and a pixel electrode. A first electrode of the first thin film transistor is electrically connected to a pixel conductive layer of the pixel electrode, a second electrode of the first thin film transistor is electrically connected to a first electrode of the second thin film transistor, and a second electrode of the second thin film transistor is electrically connected to the data line. An orthographic projection of a combination of the second electrode of the first thin film transistor and the first electrode of the second thin film transistor on the base substrate at least partially overlaps with an orthographic projection of the pixel conductive layer on the base substrate.

Abstract: The present application provides a collagen type III composition prepared from a fibroblast extracellular matrix. The collagen type III is ultimately prepared by further purification, detection, and isolation based on the extracellular matrix components in a conditioned culture solution for fibroblasts, which are the most important cells in the human skin dermis, and can be combined with hyaluronic acid to form a composition formulation for use by people who want to remove and fill wrinkles on face and neck. The method is a production technique of the collagen type III composition from the fibroblast extracellular matrix, which belongs to a transplantation technology. More specifically, the human collagen is prepared from the cell culture supernatant by in vitro culturing the skin donated by volunteers for fibroblasts. The detection results of HIV, HBV, HCV, and syphilis infection markers are all non-reactive, mycoplasma is negative, and bacterial detection is negative.

Abstract: The present invention relates to a preparation method for a sarcosinate including: step 1, reacting a solution of glyoxylic acid or a glyoxylate with an amine solution to prepare a Schiff base solution; step 2, subjecting the prepared Schiff base solution to a hydrogenation reaction under the condition of a catalyst; and step 3, adjusting a pH value of a solution obtained after the hydrogenation reaction to be alkaline to obtain the sarcosinate. Wherein the pH value of the solution obtained after the hydrogenation reaction in the step 3 is adjusted to be acidic to obtain sarcosine. Wherein a sarcosinate solution obtained in the step 3 is reacted with cyanamide to prepare a sarcosine derivative.

Abstract: An electronic paper display device includes a first base substrate, and a plurality of sub-pixels on the first base substrate. Each sub-pixel includes: a first electrode on the first base substrate; a second electrode on the first electrode and including a plurality of grooves passing through thereof, the orthographic projection of the grooves on the first base substrate falling within the orthographic projection of the first electrode on the first base substrate; a microstructure on the side of the second electrode away from the first base substrate and including a paper film microcavity and a plurality of charged particles in the paper film microcavity, where the plurality of charged particles include a plurality of first color charged particles and a plurality of second color charged particles with opposite electrical properties; and a third electrode on the side of the microstructure away from the second electrode.

Abstract: A display substrate includes a base substrate, the base substrate including a display region, and the display region including a plurality of pixel regions; and at least four conductive layers arranged in a stacked manner, located on the base substrate, wherein any two adjacent conductive layers are arranged in an insulated manner, each of the conductive layers includes conductive patterns located in the pixel regions, the conductive patterns of any two adjacent conductive layers in the same pixel region form a storage capacitor (e.g., Cst1, Cst2 and Cst3), and in a direction perpendicular to the base substrate, projections of the at least four conductive layers on the base substrate overlap. A manufacturing method of a display substrate and a display device are further provided.

Abstract: Electronic paper includes a display panel and a drive component. The display panel may include a plurality of pixels disposed in a display region and a photoelectric conversion transistor disposed in a non-display region. The drive component is electrically connected to the plurality of pixels, and is electrically connected to a current output terminal of the photoelectric conversion transistor.

Abstract: A pixel structure, an array substrate, a display panel and a display device. The pixel structure includes a gate line (10), a data line (20), a gate (30), a first electrode (40), a second electrode (50), and a third electrode (60); the gate (30) is connected to the gate line (10); the first electrode (40) is connected to the data line (20); and the second electrode (50) has a first portion and a second portion that are distributed in the extending direction of the second electrode, wherein the first portion of the second electrode (50) cooperates with the first electrode (40) and the gate (30) to form a first thin film transistor, and the second portion of the second electrode (50) cooperates with the third electrode (60) and the gate (30) to form a second thin film transistor.