Abstract: Embodiments of the present application provide a user question labeling method and apparatus. By obtaining dialogue data generated by a manual customer service system, determining a target quick response statement corresponding to a target raised question, and then determining, in combination with a correspondence between a preset quick response statement and a user intention label, a target intention label corresponding to the target quick response statement, so as to obtain a correspondence between the target raised question and the target intention label, labeling user intention for a user question is thus achieved and then a generated user intention recognition sample set is applied to a user intention recognition model in an intelligent customer service system.

Abstract: The present disclosure provides a method for experimentally determining a critical sand-carrying gas velocity of a shale gas well. The method includes: collecting well structure and production data, calculating parameter ranges of a gas flow velocity and a liquid flow velocity; carrying out a physical simulation experiment of sand carrying in the shale gas well to obtain the sand holding capacity of the wellbore under different experimental conditions, and calculating a sand holding rate; by observing a change curve of the sand holding rate of the wellbore vs. the gas flow velocity, defining a turning point, and sensitively analyzing the influence of other experimental variables on the turning point, to calculate the critical sand-carrying production of the shale gas well under different conditions. Therefore, this calculation method is simple and applicable, and provides a theoretical basis for the optimization design of water drainage and gas production process.

Abstract: A multimedia playback method includes: playing first multimedia data, switching from playing the first multimedia data to playing a multimedia frame corresponding to a target starting point of second multimedia data, based on a media switching operation, the second multimedia data including multimedia frames corresponding to a plurality of time points, the plurality of time points including pre-configured P candidate starting points, and the target starting point belonging to the P candidate starting points, and switching, during the playing of the second multimedia data, from playing a first multimedia frame in the second multimedia data to playing a new multimedia frame corresponding to a new starting point, based on a target triggering operation, the first multimedia frame being a multimedia frame played at a moment at which the target triggering operation is performed, and the new starting point being a candidate starting point other than the target starting point. .

Abstract: A hybrid mount for an optical instrument and an associated method employs a worm gear for angular positioning about a declination axis and a harmonic gear for angular positioning about a right-ascension axis. An optical encoder measures right-ascension angles and provides a basis for correcting periodic errors introduced by the harmonic gear.

Abstract: The present disclosure discloses an array substrate and a display device. The array substrate includes a touch substrate, the touch substrate includes a plurality of touch electrodes and a plurality of touch electrode wires disposed in an array, each touch electrode includes a plurality of touch sensors disposed in an array, common electrodes of all pixel cells of the array substrate are reused as the touch sensors, and the array substrate includes data wires for providing display data to the pixel cells; the array substrate includes a base substrate and a thin film transistor which are stacked, the touch electrode wires and the data wires are provided on the same layer where a source and a drain of the thin film transistor are located, and the touch electrode wires are abreast provided on the two sides of each data wire.

Abstract: A P2X3 and/or P2X2/3 receptor antagonist of formula (I), a pharmaceutical composition comprising the same, and a use thereof in preparing a drug for preventing or treating a disease mediated by the P2X3 and/or P2X2/3 receptor antagonist.

Abstract: The present disclosure provides a comprehensive utilization method and test equipment for surface water, a goaf and geothermal energy in a coal mining subsidence area. The method comprises the following steps: determining a geothermal water collection area, arranging heat energy exchange equipment in a main roadway, and arranging a geothermal water extraction system, wherein the geothermal water extraction system comprises geothermal wells, extraction pipelines and tail water reinjection pipelines, the extraction pipelines are connected with the heat energy exchange equipment, and the tail water reinjection pipelines are connected with a water outlet of the heat energy exchange equipment; arranging a water channel on the surface, and arranging a drainage system on a subsidence trough to guide surface water to flow underground; and controlling directional and ordered flow of surface water through the coal mining subsidence area formed by ground mining to achieve sustainable mining of underground water.

Abstract: Three-dimensional (3D) semiconductor devices and fabricating methods are provided. In some implementations, a 3D semiconductor device includes: an array of vertical transistors each comprising a semiconductor body extending in a vertical direction; a plurality of word lines each extending in a first lateral direction, wherein each word line is shared by a row of the vertical transistors arranged along the first lateral direction; and a plurality of bit lines each extending in a second lateral direction perpendicular to the first lateral direction; wherein the semiconductor bodies are further arranged along a third lateral direction different from the first lateral direction and the second lateral direction.

Abstract: A series of 1H-pyrrolo[2,3-c]pyridine compounds and an application thereof are provided. The compounds include those represented by formula (P) and a pharmaceutically acceptable salt thereof.

Abstract: A method for manufacturing a high-torque hexagonal drill shank includes: firstly producing an air module, wherein the lower end of the air module is inserted into a molding cavity of a mold, a high-pressure air is injected into the air module, and the surface of the air module is provided with a plurality of air outlets; evenly mixing metal powder and an organic binder together; injecting obtained particulates in a heating-plasticizing state into the molding cavity by an injection molding machine to solidify and form a hexagonal drill shank blank; forming a non-cylindrical cavity inside the hexagonal drill shank blank under the action of the air module; removing the binder in the hexagonal drill shank blank by thermal decomposition; and, finally, obtaining a high-torque hexagonal drill shank by sintering and densifying.

Abstract: Disclosed are a class of BTK kinase inhibitor compounds with a high activity and a high selectivity and the use thereof in the preparation of a drug for treating BTK target-related diseases. Specifically, disclosed are a compound shown as formula (I), and an isomer and a pharmaceutically acceptable salt thereof.

Abstract: A semiconductor device is provided. For example, the semiconductor device can include a plurality of transistors that are arranged in an array in an X-Y plane. Each of the transistors can include a channel extending in Z direction. The semiconductor device can further include a plurality of word lines. Each of the word lines can electrically connect neighboring some of the transistors that are arranged in a column in X direction at lateral walls of the channels thereof. The semiconductor device can further include one or more electromagnetic shielding elements. At least one of the electromagnetic shielding elements can be disposed between neighboring two of the transistors that are disposed in a row in Y direction.

Abstract: A semiconductor device is provided. For example, the semiconductor device can include a plurality of transistors that are arranged in an array in an X-Y plane. Each of the transistors can include a channel extending in Z direction. The semiconductor device can further include a plurality of word lines. Each of the word lines can electrically connect neighboring some of the transistors that are arranged in a column in X direction at lateral walls of the channels thereof. The semiconductor device can further include one or more electromagnetic shielding elements. At least one of the electromagnetic shielding elements can be disposed between neighboring two of the transistors that are disposed in a row in Y direction.

Abstract: Disclosed herein are anti-SARS-CoV-2 spike protein antibodies and methods of using such for therapeutic and/or diagnostic purposes. Also provided herein are methods for producing such antibodies.

Abstract: This invention provides a tomato zonate spot virus detection reagent. Optimized gene encoding N protein of TZSV is expressed and purified to obtain N protein of TZSV, and two specific hybridoma cell lines are obtained, from which specific anti-TZSV monoclonal antibody could be obtained, respectively. Test strip for detecting tomato zonate spot virus is prepared with the monoclonal antibody. It is proven by experiments that the test strip of this invention is specific for TZSV, and can realize rapid detection of TZSV in leaves and other samples, with high sensitivity and convenient operation.

Abstract: A multimedia playback method includes: playing first multimedia data, switching from playing the first multimedia data to playing a multimedia frame corresponding to a target starting point of second multimedia data, based on a media switching operation, the second multimedia data including multimedia frames corresponding to a plurality of time points, the plurality of time points including pre-configured P candidate starting points, and the target starting point belonging to the P candidate starting points, and switching, during the playing of the second multimedia data, from playing a first multimedia frame in the second multimedia data to playing a new multimedia frame corresponding to a new starting point, based on a target triggering operation, the first multimedia frame being a multimedia frame played at a moment at which the target triggering operation is performed, and the new starting point being a candidate starting point other than the target starting point. .

Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, and a bonding interface between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes a peripheral circuit. The second semiconductor structure includes an array of memory cells and a plurality of bit lines coupled to the memory cells and each extending in a second direction perpendicular to the first direction. Each of the memory cells includes a vertical transistor extending in a first direction, and a storage unit coupled to the vertical transistor. A respective one of the bit lines and a respective storage unit are coupled to opposite ends of each one of the memory cells in the first direction. Two adjacent vertical transistors of the vertical transistors in the second direction are mirror-symmetric to one another. The array of memory cells is coupled to the peripheral circuit across the bonding interface.

Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, and a first bonding interface between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes a peripheral circuit. The second semiconductor structure includes an array of memory cells and a plurality of bit lines coupled to the memory cells and each extending in a second direction perpendicular to the first direction. Each of the memory cells includes a vertical transistor extending in a first direction, and a storage unit coupled to the vertical transistor. A respective one of the bit lines and a respective storage unit are coupled to opposite ends of each one of the memory cells in the first direction. The array of memory cells is coupled to the peripheral circuit across the first bonding interface.

Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, and a bonding interface between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes a peripheral circuit. The second semiconductor structure includes an array of memory cells and a plurality of bit lines coupled to the memory cells and each extending in a second direction perpendicular to the first direction. Each of the memory cells includes a vertical transistor extending in a first direction, and a storage unit coupled to the vertical transistor. The vertical transistor includes a semiconductor body extending in the first direction, and a gate structure in contact with two opposite sides of the semiconductor body in the second direction. A respective one of the bit lines and a respective storage unit are coupled to opposite ends of each one of the memory cells in the first direction.

Abstract: System for detecting intention of movements by a subject comprises sensors and a computing device. The sensors are configured to be engaged to the subject. The sensors measure electromyogram signals from the subject. The computing device receives the electromyogram signals from the sensors. Features are extracted using electromyogram signals from one or more of the sensors. One or more of the extracted features are compared with their respective threshold corresponding to a first movement among the movements. Intention of making the first movement is registered, prior to the onset of the first movement, based on the comparison.