Abstract: A groundwater level elevation measurement method is provided. A permeable cylinder is drilled at a measurement site to ensure that groundwater enters the permeable cylinder. A water inlet of an aqueduct extends below the liquid level in the cylinder, and a drainage outlet thereof is led to the ground. A stable drainage flow rate is detected, and a water level elevation at the water inlet is calculated according to the formula. An optimization method is to detect the flow rate after a stable negative pressure is introduced, and then calculate the water level elevation at the water inlet. According to the groundwater storage monitoring and measurement system of the present invention, a matrix of water level monitoring sites is laid out, groundwater level elevations at all sites and related data are measured and collected, and water storage characteristic data of a groundwater measurement space is constructed.

Abstract: A transistor assembly with gate current shunting capability includes first field effect transistor (FET), a first pull-up current source, a first pull-down current source, a first switching device, a control circuit, a capacitor, and a second FET. The first FET is an N-channel FET including a first gate, a first drain, and a first source. The first drain is electrically coupled to a first power supply. Each of the pull-up current source and the pull-down current source is electrically coupled to the first gate. The first switching device is electrically coupled in series with the first pull-down current source and is controlled by a first control signal. The control circuit is at least partially powered by a second power supply and generates the first control signal. The capacitor and the second FET collectively shunt current away from the first gate during a pre-power operating state of the transistor assembly.

Abstract: Disclosed are a tandem catalyst for synthesizing methyl acetate from carbon dioxide, a method for preparing the same, and a method for preparing methyl acetate using the same. The tandem catalyst of the present invention includes a first catalyst having a core-shell structure including a composite metal oxide core and a silica shell surrounding a surface of the composite metal oxide core, and a second catalyst including nano-ferrierite (N-FER) zeolite.

Abstract: The present disclosure relates to an organic light-emitting diode. The organic light-emitting diode includes a substrate, an anode layer, an organic functional layer, a cathode layer, and a cover layer that are sequentially stacked from bottom to top.

Abstract: A tire self-positioning system and a positioning method therefor. The tire self-positioning method includes the steps of: S1, data acquisition; S2, data conversion; S3, data compensation; S4, data statistics; S5, determining, according to a statistical result, a specific position of a tire corresponding to the first signal. The tire self-positioning system and positioning method therefor are used to solve the problem of a tire experiencing reverse movement, and increase the success rate of active learning.

Abstract: This disclosure relates to a tire self-positioning system and a positioning method. The tire self-positioning method includes the steps of: S1, performing data acquisition; S2, performing data transmission; S3, performing data conversion; S4, repeatedly executing steps S1 to S3; S5, performing data statistics; S6, determining, according to a statistical result, position information of a tire corresponding to a first signal. According to the tire self-positioning system and the tire self-positioning method, the accuracy of self-positioning can be improved.

Abstract: A semi-active anti-yaw damper (100), a damping system and a vehicle are provided. When a piston (2) of the semi-active anti-yaw damper (100) reciprocates in the hydraulic cylinder (1), an interior of the hydraulic cylinder (1) is divided into two cylinder blocks (PA, PB). The semi-active anti-yaw damper (100) includes at least two parallel branches (B1, B2), the two ends of each of the parallel branches (B1, B2) are connected to the two cylinder blocks (PA, PB), respectively, and each of the parallel branches (B1, B2) is provided with an adjustable solenoid valve (PV), and the adjustable solenoid valve (PV) is configured to adjust a damping coefficient of the semi-active anti-yaw damper (100) when the semi-active anti-yaw damper (100) is in a semi-active mode.

Abstract: An array substrate includes: a base substrate, a light shielding layer on a first surface of the base substrate, and a plurality of pixel units and a first common electrode bus on a second surface of the base substrate. The base substrate includes a display region, first and second peripheral regions. Orthographic projections of the pixel units on the base substrate are arranged in an array in the display region. At least part of an orthographic projection of the light shielding layer and at least part of an orthographic projection of the first common electrode bus on the base substrate are in the second peripheral region, and the first common electrode bus is electrically connected to the common electrode included in at least one pixel unit. A distribution density of the first common electrode bus in the first peripheral region is smaller than that in the second peripheral region.

Abstract: Disclosed are a method and system for determining the installation position of a thyristor controlled phase shifter, a medium and a computing device. The installation position of a thyristor controlled phase shifter can be determined according to the variation of the voltage stability index of a power system before and after the thyristor controlled phase shifter is installed, thus providing technical support for the selection of the installation position of the thyristor controlled phase shifter in a power grid.

Abstract: A method of promoting axonal regeneration can include directing neuronal lipid synthesis away from triglyceride synthesis and toward phospholipid synthesis. The method can include administering to the patient a therapeutically effective amount of an inhibitor compound selected from the group consisting of a Lipin-1 inhibitor, a diglyceride acyltransferase inhibitor, and combinations thereof or administering a gene editing therapy to the patient that reduces expression of LIPIN1 or a diglyceride acyltransferase gene.

Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. In an embodiment, the plurality of cutters comprise a substrate, an ultra-hard layer, a concave surface on the top of the ultra-hard layer, wherein the concave surface comprises a plurality of planar and curved surfaces.

Abstract: A method for comprehensively analyzing and/or evaluating cigarette burning quality index is disclosed. The steps include collecting cigarette burning quality index data, filtering the cigarette burning quality index data, standardizing cigarette data, and measuring cigarette burning quality. The importance of the cigarette burning quality indicators can also be evaluated. The method for comprehensively analyzing and/or evaluating cigarette burning quality indicators can reflect general laws more accurately by maintaining the sample distribution through a singularity detection method, and analyzing correlations of each index with cigarette performance from multiple perspectives, to fuse them into a comprehensive measurement value. The importance ranking and weight of indicators can be obtained more completely and stably.

Abstract: A data processing method and a device, the method including determining, by an optical network unit, in a received data stream, after the optical network unit enters a pre-synchronization state, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of a physical synchronization sequence (Psync) field, performing an FEC codeword decoding check, where the Psync field is a field that matches a preset Psync, in the data stream, and entering, by the optical network unit, a synchronization state in response to an FEC codeword among N consecutive FEC codewords in the data stream passing the decoding check, where N is an integer greater than or equal to 1.

Abstract: Disclosed are a step-by-step paired and up-down reciprocating combined fishway and a fish passage method thereof, belonging to the technical field of fish passage facilities. The present disclosure aims to provide an efficient fish passage technology for a low-head water control project, which overcomes the defects of long construction length and low fish passage efficiency of the traditional fishway. The present disclosure includes several fishway units, a mechanical transmission system, a fish repelling system, a control system, and a recovery cableway. Under the combined action of the mechanical transmission system and the fish repelling system, the fishway units reciprocate up and down step by step to form a fish passage way. The weight of the fishway units is balanced through the rotation of coaxial eccentric wheels, and the energy consumption of the mechanical transmission system is reduced.

Abstract: Disclosed is a synchronous detection system for a trace nitrogen-oxygen compound based on photoacoustic spectrometry, including a NOx (Nitrogen Oxide) detection air channel, a dust detection air channel and a double-photoacoustic spectrometry detection mechanism which are mutually connected in parallel; the NOx detection air channel includes a background interference detection air pipe, a NO2 detection air pipe and a NO detection air pipe that are mutually connected in parallel, and a NOx photoacoustic detection cavity; and the dust detection air channel includes a dust detection air pipe and a dust photoacoustic detection cavity communicating with the dust detection air pipe.

Abstract: A method, computer program, and computer system is provided for query matching of sentences based on co-attention scores. Two or more query inputs to a neural network are received. A correlation factor between the two or more query input is identified based on attention weights. A feature vector is generated based on the attention weights. A probability value corresponding to the two or more query inputs is determined based on the generated feature vector.

Abstract: A dense thick alloy coating with no layered organizational structure and a preparation method thereof are provided. The preparation method includes the following steps: step 1, placing a substrate in a plasma spraying apparatus, controlling a vacuum degree of the plasma spraying apparatus to be 0.2 mbar-0.5 mbar, controlling a length of a plasma flame of the plasma spraying apparatus to be 1000 mm-1200 mm, and controlling a diameter of the plasma flame to be 200 mm-300 mm; step 2, preheating, by using a plasma spray gun, the substrate to a temperature of 700° C.-1000° C. to obtain a preheated substrate; step 3, plasma spraying an alloy powder on the preheated substrate under a specific plasma spraying condition to obtain a sprayed substrate; and step 4, cooling the sprayed substrate after the plasma spraying, to thereby obtain the dense thick alloy coating without layered organizational structure.

Abstract: The present disclosure relates to the technical field of chemical engineering, and specifically discloses a method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number. A reaction-extraction combined process is used in this method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number, wherein the Fischer-Tropsch oil (C5-C20) is firstly subjected to alkaline washing with an alkaline aqueous solution to convert acidic substances into water-soluble salts. The Fischer-Tropsch oil is subjected to a primary extraction with a carbonate-based extractant to remove alcohols and esters therein, and subsequently subjected to a secondary extraction with propylene carbonate to remove ketones and aldehydes impurities therein, thereby removing oxygenated compounds in the Fischer-Tropsch oil. After extraction, the content of the oxygenated compounds in the Fischer-Tropsch oil may be down to 1-60 ppm, and the yield of oil product may be kept 90% or more.