Abstract: Disclosed are a method and device for realizing advanced nitrogen removal of mature landfill leachate and sludge reduction by using sludge fermentation products as carbon source, belonging to the field of biological treatment of sludge of high ammonia nitrogen wastewater.

Abstract: The present application discloses a pixel driving circuit for a sub-pixel in light-emitting display. The pixel driving circuit includes a driving sub-circuit comprising N driving transistors connected in series. N is an integer greater than 1. The N driving transistors include a first driving transistor having a source electrode coupled to a first input voltage port and an N-th driving transistor having a drain electrode coupled to a light-emitting diode. Additionally, the pixel driving circuit includes a power-storage sub-circuit coupled to a gate electrode of the first driving transistor and the drain electrode of the N-th driving transistor. Furthermore, the pixel driving circuit includes a charge-input sub-circuit configured to use a first control signal from a first scan line to control a connection between the gate electrode of the first driving transistor and a data line supplying a data voltage.

Abstract: An array substrate and a manufacturing method thereof, a display panel, and a display device are provided. The array substrate includes a base substrate, gate lines and data lines, switch circuits, a common electrode layer, and a light shielding conductive layer. The gate lines and the data lines are on the base substrate and cross with each other to define pixel regions; the switch circuits are in the pixel regions; the common electrode layer is on a side of the switch circuits away from the base substrate; and the light shielding conductive layer is on the side of the switch circuits away from the base substrate and is electrically connected to the common electrode layer. At least a portion of an orthographic projection of the gate lines, the data lines and the switch circuits is within an orthographic projection of the light shielding conductive layer on the base substrate.

Abstract: The present application discloses a pixel driving circuit for a sub-pixel in light-emitting display. The pixel driving circuit includes a driving sub-circuit comprising N driving transistors connected in series. N is an integer greater than 1. The N driving transistors include a first driving transistor having a source electrode coupled to a first input voltage port and an N-th driving transistor having a drain electrode coupled to a light-emitting diode. Additionally, the pixel driving circuit includes a power-storage sub-circuit coupled to a gate electrode of the first driving transistor and the drain electrode of the N-th driving transistor. Furthermore, the pixel driving circuit includes a charge-input sub-circuit configured to use a first control signal from a first scan line to control a connection between the gate electrode of the first driving transistor and a data line supplying a data voltage.

Abstract: Provided are a fingerprint recognition module and a manufacturing method therefor, a display panel and a display apparatus. The fingerprint recognition module includes: a substrate, a collection device and a fingerprint recognition circuit, wherein the substrate includes a fingerprint collection surface and a target surface opposite each other, the target surface is provided with a first groove, and the collection device is located in the first groove; and the fingerprint recognition circuit is electrically connected to the collection device, and is configured to collect information of a fingerprint on a side where the fingerprint collection surface is located through the collection device.

Abstract: The present invention discloses a method for separating and purifying ?2-macroglobulin from Cohn Fraction IV precipitation, in which Cohn Fraction IV precipitation is treated by ammonium sulfate precipitation, zinc ion affinity chromatography, gel filtration, and ultrafiltration and concentration sequentially and thereby ?2-macroglobulin is obtained finally. With the method provided in the present invention, purified ?2-macroglobulin plasma protein that has a clinical application value is obtained, the Cohn Fraction IV precipitation is changed from a discarded material into a valuable material, and plasma is utilized comprehensively. In addition, the method is easy and simple to use, easy to scale up, and suitable for separation and purification of ?2-macroglobulin at a large scale.

Abstract: There is provided an electronic paper display apparatus and a production method and a driving method thereof. The electronic paper display apparatus has: a first electrode layer and a thin-film transistor array layer, which are opposite; an electronic paper ink layer, which is between the first electrode layer and the thin-film transistor array layer; and a second electrode layer, which is on a side of the thin-film transistor array layer away from the electronic paper ink layer and is configured to be capable of forming an electric field for removing an image of the electronic paper ink layer or resetting the electronic paper ink layer together with the first electrode layer.

Abstract: Provided are a fingerprint recognition module and a manufacturing method therefor, a display panel and a display apparatus. The fingerprint recognition module includes: a substrate, a collection device and a fingerprint recognition circuit, wherein the substrate includes a fingerprint collection surface and a target surface opposite each other, the target surface is provided with a first groove, and the collection device is located in the first groove; and the fingerprint recognition circuit is electrically connected to the collection device, and is configured to collect information of a fingerprint on a side where the fingerprint collection surface is located through the collection device.

Abstract: An array substrate and a manufacturing method thereof, a display panel, and a display device are provided. The array substrate includes a base substrate, gate lines and data lines, switch circuits, a common electrode layer, and a light shielding conductive layer. The gate lines and the data lines are on the base substrate and cross with each other to define pixel regions; the switch circuits are in the pixel regions; the common electrode layer is on a side of the switch circuits away from the base substrate; and the light shielding conductive layer is on the side of the switch circuits away from the base substrate and is electrically connected to the common electrode layer. At least a portion of an orthographic projection of the gate lines, the data lines and the switch circuits is within an orthographic projection of the light shielding conductive layer on the base substrate.

Abstract: A wire detection device and a wire detection method are provided. The wire detection device includes: a chamber body including a first side and a second side arranged opposite to each other; an electrode arranged at the second side of the chamber body; particles arranged within the chamber body; and a signal applying circuit configured to apply an electric signal to at least one wire to be tested arranged at the first side.

Abstract: There is provided an electronic paper display apparatus and a production method and a driving method thereof. The electronic paper display apparatus has: a first electrode layer and a thin-film transistor array layer, which are opposite; an electronic paper ink layer, which is between the first electrode layer and the thin-film transistor array layer; and a second electrode layer, which is on a side of the thin-film transistor array layer away from the electronic paper ink layer and is configured to be capable of forming an electric field for removing an image of the electronic paper ink layer or resetting the electronic paper ink layer together with the first electrode layer.

Abstract: The present disclosure provides a wire detection device and a wire detection method. The wire detection device includes: a chamber body including a first side and a second side arranged opposite to each other; an electrode arranged at the second side of the chamber body; particles arranged within the chamber body; and a signal applying circuit configured to apply an electric signal to at least one wire to be tested arranged at the first side.

Abstract: The present invention discloses a method for separating and purifying ?2-macroglobulin from Cohn Fraction IV precipitation, in which Cohn Fraction IV precipitation is treated by ammonium sulfate precipitation, zinc ion affinity chromatography, gel filtration, and ultrafiltration and concentration sequentially and thereby ?2-macroglobulin is obtained finally. With the method provided in the present invention, purified ?2-macroglobulin plasma protein that has a clinical application value is obtained, the Cohn Fraction IV precipitation is changed from a discarded material into a valuable material, and plasma is utilized comprehensively. In addition, the method is easy and simple to use, easy to scale up, and suitable for separation and purification of ?2-macroglobulin at a large scale.

Abstract: A system for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid comprises a concentration kettle (1), a defoaming pot (2), a gas-liquid separator (3) and a falling film absorption tower (4). A steam exit of the concentration kettle (1) is connected to an entrance of the defoaming pot (2). An exit of the defoaming pot (2) is connected to a feeding port of the gas-liquid separator (3). A gas exit of the gas-liquid separator (3) is connected to the falling film absorption tower (4). A liquid exit of the gas-liquid separator (3) is connected to the concentration kettle (1). A method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid by using the system is further provided.

Abstract: A system for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid comprises a concentration kettle (1), a defoaming pot (2), a gas-liquid separator (3) and a falling film absorption tower (4). A steam exit of the concentration kettle (1) is connected to an entrance of the defoaming pot (2). An exit of the defoaming pot (2) is connected to a feeding port of the gas-liquid separator (3). A gas exit of the gas-liquid separator (3) is connected to the falling film absorption tower (4). A liquid exit of the gas-liquid separator (3) is connected to the concentration kettle (1). A method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid by using the system is further provided.

Abstract: The present invention provides peroxidic fluoropolyether and a fluorine-containing dispersion obtained from polymerization of fluorine-containing monomers in the presence of peroxidic fluoropolyether as a surfactant. The peroxidic fluoropolyether can be used as surfactant for producing aqueous dispersion of fluorine-containing monomer in place of PFOA or the salts thereof. Thus the amount of PFOA or the salts thereof is reduced and the natural environment is protected. In addition, applying peroxidic fluoropolyether as surfactant and combining it with adjuvants, such as initiator, can induce the reaction moderate and can be beneficial to the polymerization control, thus reducing the amount of initiator or shortening the reaction time.

Abstract: An LED panel holder includes a rectangular case (1) comprising a longitudinal groove (1a) on a central portion of back, slots (1d) on one side, hooks (1e) on the other side, the hooks (1e) adapted to lockingly engage with the slots (1d), projecting members (1b, 1c) on top, and recessed members (1b, 1c) on bottom, the recessed members (1b, 1c) being complementary to the projecting members (1b, 1c); and a support assembly (2) comprising an elongated support (2a) releasably secured to the groove (1a), a base (2c) having one end pivotably secured to bottom of the groove (1a), and an arm (2b) having one end adjustably secured to the support (2) and the other end pivotably secured to the other end of the base (2c). The support assembly (2) is adapted to retract into the groove (1a) to render the back of the case (1) to be substantially flat.

Abstract: The present invention provides peroxidic fluoropolyether and a fluorin-containing dispersion obtained from polymerization of fluorin-containing monomers in the presence of peroxidic fluoropolyether as a surfactant. The peroxidic fluoropolyether can be used as surfactant for producing aqueous dispersion of fluorin-containing monomer in place of PFOA or the salts thereof. Thus the amount of PFOA or the salts thereof is reduced and the natural environment is protected. In addition, applying peroxidic fluoropolyether as surfactant and combining it with adjuvants, such as initiator, can induce the reaction moderate and can be beneficial to the polymerization control, thus reducing the amount of initiator or shortening the reaction time.