Abstract: A method for preparing an ultrathin two-dimensional (2D) monocrystalline nanosheet, the method including: 1) placing BiX3 powder where X=I, Br, or Cl in a crucible, and putting the crucible on a first heating zone of a furnace disposed at a gas inlet of a quartz tube; placing substrates covered with metal sheets on a second heating zone of the furnace disposed at a gas outlet of the quartz tube; 2) vacuumizing the quartz tube; pumping Ar gas into the quartz tube until the air pressure is 101.325 kPa; pumping a carrier gas into the quartz tube; and 3) heating and maintaining the second heating zone; heating the first heating zone for BiX3 evaporation until producing chemical reaction between BiX3 and the metal sheets, and preparing ultrathin 2D nanosheets on the substrates simultaneously; and cooling the substrate naturally to 15-30° C.

Abstract: Embodiments of the present disclosure provide an image recognition method and apparatus, an electronic device and a medium, and relates to the field of image processing. The method may include: acquiring a to-be-recognized image sent by a client, and determining whether the to-be-recognized image is a back image; determining characteristic information of the to-be-recognized image in at least one dimension, when it is determined that the to-be-recognized image is the back image; and determining a target front side image matching the to-be-recognized image according to the characteristic information, and returning the target front side image to the client to cause the client to display the target front side image.

Abstract: A computer-implemented method, according to one embodiment, includes: sending one or more instructions to a web crawler to identify presentation videos on the internet and capture video data therefrom. In response, video data which corresponds to various presentation videos on the internet is received from the web crawler. The video data is used to define influence factors, such that different combinations of the influence factors represent different conditions of a presenter in the presentation videos. The video data is also used to define labels, where different combinations of the labels represent different conditions of one or more audience members in the presentation videos. Furthermore, structured data is generated by correlating certain presenter conditions with certain audience conditions, and the structured data is stored in memory.

Abstract: A message processing method, apparatus, and system, which include: receiving a sharing request for a source message and sent by a terminal, the source message carrying a password and an enterprise account identifier, the sharing request including a sharing user account identifier; returning at least one account identifier to the terminal, and receiving a determined target account identifier with which the source message is shared and that is selected by the terminal; setting an electronic resource property for the source message according to a preset rule to generate a target message, sending the target message to a target user corresponding to the target account identifier; and transferring, according to the electronic resource property, an electronic resource corresponding to an associated account of the enterprise account identifier to an associated account of the sharing user account identifier if receiving a drawing request sent by the terminal and that carries the password.

Abstract: The present application provides shift register, gate driver-on-array circuit and driving method thereof, display device. The shift register includes input sub-circuit, output sub-circuit and step-down sub-circuit. The input sub-circuit is configured to, in input stage, charge pull-up node to first voltage level based on signal input from signal input terminal. The output sub-circuit is configured to, in output stage, pull up voltage level at pull-up node to second voltage level. The step-down sub-circuit is configured to, in output stage, pull down voltage level at pull-up node from second voltage level to third voltage level after voltage level at pull-up node is pulled up to second voltage level. The output sub-circuit is further configured to, in output stage, output first clock signal input from first clock signal input terminal through signal output terminal under control of pull-up node.

Abstract: A pixel circuit, a method thereof, an electroluminescent panel, and a display device are provided. The pixel circuit includes a first switch sub-circuit, a second switch sub-circuit, a luminescent sub-circuit, and a dual-drive sub-circuit. Through improving the pixel circuit, a first driving terminal of the dual-drive sub-circuit connects to a first node, a second driving terminal of the dual-drive sub-circuit connects to the second node, when a first and a second gate line signal terminal input the gate line scanning signal alternatively, the first and the second switch sub-circuit are working alternatively, cause the first and the second driving terminal are working alternatively, thus to drive the luminescent sub-circuit to emit light. Therefore, the two driving terminals work alternatively to avoid the voltage instability due to threshold voltage shift caused by one driving terminal of the dual-drive sub-circuit works for a long time.

Abstract: An electrostatic discharge unit, an array substrate and a display panel are provided. The electrostatic discharge unit includes: an active layer; a first gate electrode and a second gate electrode which are spaced apart from each other and are insulated from the active layer; and a first electrode and a second electrode which are spaced apart from each other and are respectively connected to the active layer. The first gate electrode is electrically connected to the first electrode, and the second gate electrode is electrically connected to the second electrode.

Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are provided. The shift register unit includes an input circuit, an output circuit, and a first node control circuit. The input circuit is configured to charge a first node in response to an input signal; the output circuit is configured to output an output signal at an output terminal under control of a level signal of the first node; and the first node control circuit is configured to receive a precharge control signal from a precharge control terminal and charge the first node in response to the precharge control signal before the output terminal outputs the output signal.

Abstract: A detector pixel, an array substrate, an apparatus and a method for detecting an intensity of a ray are provided. The detector pixel includes substrate, first transistor, second transistor, storage capacitor, photosensitive element, first control line, second control line, first data line and second data line. The first and the second transistors are dual-gate transistors; the first transistor has a bottom gate connected to the first control line, a top gate connected to the second control line, a first electrode connected to the storage capacitor, and a second electrode connected to the first data line; the second transistor has a bottom gate connected to the second control line, a top gate connected to the first control line, a first electrode connected to the storage capacitor, and a second electrode connected to the second data line; and the storage capacitor is connected to the photosensitive element.

Abstract: A volute assembly including a volute and a cover plate. The volute includes a cavity. The cover plate is disposed on the volute and covers the cavity. The cover plate includes an air inlet; the volute includes an exhaust duct. The exhaust duct includes an air outlet. The exhaust duct includes a first part, a second part, and a third part sequentially connected in that order. The first part is directly connected to the volute. The air outlet is disposed on the third part. The inner diameter of the second part increases in the direction from the first part to the third part.

Abstract: Automated material welding including starting a welding operation, scanning a weld in-progress, creating a simulation of the weld in-progress, detecting a flaw in the weld in-progress according to the scanning and the simulation, remediating the weld in-progress, and completing the welding operation.

Abstract: Embodiments of a method, device, and terminal apparatus for load balancing and a storage medium are provided. The method can include acquiring a service traffic of a service request received by at least one load balancer configured for an equipment room of a plurality of equipment rooms, acquiring a dispatching result of the load balancer, according to the service traffic of the service request and a service capacity of the equipment room, and pushing the dispatching result to a distribution proportion configuration center configured to send the dispatching result to the load balancer, where the dispatching result is used to indicate the load balancer to distribute the service request to one or more equipment rooms.

Abstract: A computer-implemented method includes positioning a sliding window over a string of data and calculating a hash value using a rolling hash function for data encompassed by the sliding window. The method includes determining whether the calculated hash value for the data encompassed by the sliding window matches the value of an element in a cut point candidate (CPC) array by comparing the calculated hash value to the value of a first element in the CPC array. In response to the calculated hash value being equal to the value of the first element in the CPC array, the method includes defining an index of the sliding window as the cutting point for a data block.

Abstract: A fault ride-through circuit with a variable frequency transformer (VFT) and a control method thereof are provided, and the control method comprises: pretreating acquired voltages of grids, a voltage of a stator interface and a voltage of a rotor interface to obtain a rotor voltage DC component and a rotor voltage DC component; testing and treating a voltage frequency of a first grid and a voltage frequency of a second grid; carrying out a reference voltage calculation for a stator voltage DC component, a rotor voltage DC component, the voltage frequencies of the first grid and the second grid to obtain a positive voltage reference value of the first PWM convertor and the second PWM convertor; and processing the voltage reference values to obtain the switch signals for controlling the first PWM convertor and the second PWM convertor.

Abstract: According to some embodiments, a socket for an electronic device includes a housing and pins connected to the housing. The housing includes a base extending laterally and having an inner face and an outer face; a riser connected to the base and extending away from the outer face; a wall extending laterally, connected to the riser, and having an exterior face and an interior face that faces the outer face of the base; mounting ports extending through the base from the inner face to the outer face; and exit ports extending through the wall from the interior face to the exterior face. Each pin includes a portion extending at least partially though one mounting port; a portion extending between the base and the wall; and a portion extending through one exit port.

Abstract: Embodiments of the present disclosure provide a content based routing method and apparatus. The method may include: judging, in response to receiving a service request, whether the service request matches a preset shunt rule, the preset shunt rule including a request content and a request context; and forwarding, in response to judging that the service request matches the preset shunt rule, the service request to a service cluster corresponding to the preset shunt rule matching the preset service request.

Abstract: A method for preparing an ultrathin two-dimensional (2D) monocrystalline nanosheet, the method including: 1) placing BiX3 powder where X=I, Br, or Cl in a crucible, and putting the crucible on a first heating zone of a furnace disposed at a gas inlet of a quartz tube; placing substrates covered with metal sheets on a second heating zone of the furnace disposed at a gas outlet of the quartz tube; 2) vacuumizing the quartz tube; pumping Ar gas into the quartz tube until the air pressure is 101.325 kPa; pumping a carrier gas into the quartz tube; and 3) heating and maintaining the second heating zone; heating the first heating zone for BiX3 evaporation until producing chemical reaction between BiX3 and the metal sheets, and preparing ultrathin 2D nanosheets on the substrates simultaneously; and cooling the substrate naturally to 15-30° C.

Abstract: Provided are four crystal forms, A, B, C and D, of demethyleneberberine hydrochloride, and a preparation method therefor, and further provided are X-ray powder diffraction characteristic absorption peaks, infrared absorption peaks and DSC spectra of the four crystal forms. The X-ray powder diffraction characteristic diffraction peaks of the crystal forms are at about 8.205°, 8.805°, 10.817°, 14.835°, 15.479°, 16.668°, 17.492°, 18.529°, 20.656°, 21.536°, 23.538°, 25.657°, 26.192°, and 28.808°. A preparation method for the four crystal forms of the demethyleneberberine hydrochloride is also involved. The preparation method has a simple process, a high yield and a low cost; and has a high product purity and a stable quality.

Abstract: The present disclosure provides a method and equipment for searching a non-unique solution of a petrophysical property combination in history matching.

Abstract: The present invention provides a graphene structure having graphene bubbles and a preparation method for the same. The preparation method comprises: providing a substrate; forming a hydrogen terminated layer on a top surface of the substrate and a graphene layer disposed on a top surface of the hydrogen terminated layer; and placing a probe on the graphene layer and applying a preset voltage to the probe, to excite a part of the hydrogen terminated layer at a position corresponding to the probe to convert into hydrogen, the hydrogen causing the graphene layer at a position corresponding to the hydrogen to bulge, so as to form a graphene bubble enveloping the hydrogen.