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: 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: The present disclosure is related to a gate driving circuit. The gate driving circuit may include a first pull-up subcircuit; a second pull-up subcircuit; a first pull-down subcircuit; and a second pull-down subcircuit. The first pull-up subcircuit may be configured to output a high level to the output terminal under control of a first control signal of a first control signal terminal. The second pull-up subcircuit may be configured to output a high level to the output terminal under control of a second control signal of a second control signal terminal. The first pull-down subcircuit may be configured to pull down a level of the output terminal under control of the first control signal. The second pull-down subcircuit may be configured to pull down the level of the output terminal under control of the second control signal.

Abstract: Embodiments of the present disclosure disclose a method, apparatus and system for processing log data. A specific embodiment of the method includes: acquiring multiple pieces of to-be-processed log data generated based on a log within a preset time period, the to-be-processed log data including multiple attributes and preset indicators; determining multiple attribute value groups; determining, for an attribute value group, based on indicator values of preset indicators respectively indicated by multiple pieces of to-be-processed log data having each attribute value in the attribute value group, an indicator statistic value of the preset indicators of a log having each attribute value in the attribute value group; and generating a log data aggregation table based on indicator statistic values of preset indicators respectively corresponding to the multiple attribute value groups.

Abstract: A commodity guiding method, an electronic device and a storage medium, and related to the technical fields of artificial intelligence image processing and commodity recommendation are provided. The commodity guiding method includes: identifying identity information of a character in a first picture; performing posture identification on the character in the first picture, to obtain posture information; matching the posture information of the character in the first picture with posture information of a same character in a plurality of prestored commodity pictures, and determining the successfully matched commodity picture as a recommended commodity picture of the first picture; displaying a commodity guiding identifier in an area within or around the first picture; and switching the first picture into the recommended commodity picture after the commodity guiding identifier is triggered. By utilizing the present solution, personalized commodity recommendation can be realized.

Abstract: The present disclosure provides a field-effect transistor structure and a method for fabricating the same. The method comprises: providing a substrate, and depositing at least one first material layer and at least one second material layer on a surface of the substrate; defining an active region and a shallow trench isolation region; etching the active region to form a channel region, a source region and a drain region; corroding the first material layer or second material layer in the groove region to obtain at least one nano-wire channel; depositing a dielectric layer and a gate structure layer on a surface of nano-wire channel; and fabricating a gate electrode, a source electrode and a drain electrode on surfaces of the gate structure layer, the source region and the drain region to complete the fabrication of the field-effect transistor.

Abstract: The present disclosure is related to a gate driving circuit. The gate driving circuit may include a first pull-up subcircuit; a second pull-up subcircuit; a first pull-down subcircuit; and a second pull-down subcircuit. The first pull-up subcircuit may be configured to output a high level to the output terminal under control of a first control signal of a first control signal terminal. The second pull-up subcircuit may be configured to output a high level to the output terminal under control of a second control signal of a second control signal terminal. The first pull-down subcircuit may be configured to pull down a level of the output terminal under control of the first control signal. The second pull-down subcircuit may be configured to pull down the level of the output terminal under control of the second control signal.

Abstract: Provided are shift register, driving method thereof, gate driving circuit and display device. The shift register includes input circuit, pull-up circuit, reset circuit, at least one noise reduction circuit, and at least one pull-down node control circuit. At least one pull-down node control circuit is coupled to at least one pull-down node, low voltage signal terminal, and reset signal terminal, and configured to control voltage level of at least one pull-down node according to signal of reset signal terminal. At least one pull-down node control circuit controls level of at least one pull-down node to second level higher than or equal to on level in response to signal of reset signal terminal having on level, and controls voltage level of at least one pull-down node to third level between on level and first level in response to signal of reset signal terminal transitioning from on level to off level.

Abstract: A hydraulic system (40) for a work machine comprising a priority circuit (41) including at least a first priority actuator (47, 48) and a priority control valve (58) for controlling the supply of hydraulic fluid to the first priority actuator (47, 48) and for providing a load sense signal indicative of the load acting on the first priority actuator (47, 48); an auxiliary circuit (42) including at least a first auxiliary actuator (51) and at least a first auxiliary control valve (80) for controlling the supply of hydraulic fluid to the first auxiliary actuator (51); at least a first pump (46) for producing a flow of hydraulic fluid; and a priority valve (74) for distributing the flow from the pump (46) to the priority circuit (41) and auxiliary circuit (42) for operating the respective actuators thereof, with priority being given to the priority circuit (41) as a function of the load sense signal.

Abstract: A method of treating a vulnerable atherosclerotic plaque can include identifying the vulnerable atherosclerotic plaque and administering a sulfated polysaccharide, or a pharmaceutically acceptable salt thereof, to a subject in an amount and at a frequency sufficient to stabilize and reverse a vulnerable atherosclerotic plaque.

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 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: 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.