Abstract: A display substrate has a central region and an edge region, and includes a plurality of structural units arranged in an array in the central region and the edge region; each structural unit is provided with a plurality of through holes, and divided by the plurality of through holes into a pixel island for displaying and a bridge portion for transmitting signals; the plurality of through holes are arranged around the pixel island; a part of the bridge portion is positioned between the pixel island and the through holes, and another part of the bridge portion is positioned between adjacent through holes; and a pixel pitch between adjacent pixel islands in the structural units in the edge region is equal to a pixel pitch between adjacent pixel islands in the structural units in the central region.

Abstract: A coal rock interface directional detection device based on elastic waves includes: a probe body including an elastic wave receiving device and an elastic wave excitation device spaced set at the top; a protective tube with one end connected to the adapter. The protective tube includes a collection circuit board inside the protective tube, and the collection circuit board is electrically connected to the elastic wave receiving device and the elastic wave excitation device; a sleeve, installed outside the protective tube, with one end connected to the side of the probe body near the adapter and with the other end connected to the side of the protective tube away from the adapter; and a control host, wirelessly connected with the acquisition circuit board. A coal rock interface directional detection method based on elastic waves applied in the coal rock interface directional detection device is also disclosed.

Abstract: A method for determining a response message includes: determining a target instruction indicated by a query information from a user and a target content to be responded to, the target instruction being configured to indicate a processing requirement for the target content; determining a target historical instruction similar to the target instruction from a historical instruction set, the historical instruction set including at least one historical instruction determined based on historical query information input by the user; determining an instruction intent corresponding to the target historical instruction as a target instruction intent of the target instruction; and determining a first response message for the query information using a first language processing model based on the target content and the target instruction intent of the target instruction.

Abstract: Disclosed are an integrated mining method and an integrated mining system of coal breaking, coal extraction and water circulation in a U-well. The integrated mining system includes a first ground facility unit, a second ground facility unit, a jet unit and an extraction unit. The first ground facility unit is configured to transport jet fluid to the jet unit. The jet unit is configured to break a coal seam in a sub-segment to obtain broken cinders. The extraction unit is configured to extract a coal-water mixture. The second ground facility unit is configured to receive the coal-water mixture. In response to determining that an extraction of the sub-segment is complete, the jet unit and the extraction unit is configured to move to a next sub-segment using powers provided by the first ground facility unit and the second ground facility unit.

Abstract: A coal and coalbed methane mining system based on ground drilling includes: a drilling component, a coal mining drill bit and a ground facility group. The coal mining drill bit is set at a predetermined end of a directional borehole in a coal seam, connected to the drilling component through a connecting pipeline. The ground facility group is connected to the drilling component, to provide coal cutting slurry for the coal mining drill bit, receive reflux slurry carrying coal and coalbed methane, and precipitate and separate the reflux slurry carrying the coal and the coalbed methane. A coal and coalbed methane mining method based on ground drilling and related devices are also disclosed.

Abstract: The present disclosure provides a displaying backplane and a displaying device, and relates to the technical field of displaying. The displaying backplane includes: a substrate base plate; a first active layer and a second active layer that are provided on the substrate base plate, wherein the material of the first active layer and the second active layer is an oxide semiconductor, the first active layer has a first channel region and first no-channel regions, and the second active layer has a second channel region and second no-channel regions; a first grid insulating layer covering the first active layer and the second active layer; and a first grid and a second grid that are provided on the first grid insulating layer; wherein the oxygen-vacancy concentration of the first channel region is greater than the oxygen-vacancy concentrations of the first no-channel regions, the second no-channel regions and the second channel region.

Abstract: A stretchable display panel, a preparation method therefor, and a display apparatus, relating to the technical field of display. Wherein the stretchable display panel includes an island region (01) disposed with a display apparatus (A), a bridge region (02) disposed with wiring (B), and a hole-region (03). A separation region (10) is disposed at an edge of the island region (01) and/or an edge of the bridge region (02). The separation region (10) includes a slope layer (11) and a plurality of isolation columns (12) disposed along a slope plane of the slope layer (11).

Abstract: The present invention relates to purified antibody and antigen-binding fragment compositions that lack sulfated tyrosine on one or more tyrosine residues in the immunoglobulin chains. Purification methods for removing sulfated tyrosine variants from antibody and antigen-binding fragment compositions are also provided.

Abstract: Provided are: A collector containing a compound that increases the recovery amount of a target mineral; a flotation method that uses this compound; and a compound that is suitable as a collector. This collector includes a compound represented by the following formula (1). (In formula (1), R1 represents an alkyl group having 1 or more and 18 or less carbon atoms, and X represents NR2R3, SR4, or OR5, and R2-3 each represents hydrogen or an alkyl group having 1 or more and 18 or less carbon atoms, and R4-5 each represent an alkyl group having 1 or more and 18 or less carbon atoms.

Abstract: Provided is a stretchable display panel. The stretchable display panel includes: a flexible substrate; a plurality of pixel islands on the flexible substrate, the pixel islands being provided with at least one light-emitting device; and inter-island connectors for connecting the adjacent pixel islands, wherein the inter-island connector includes: an inorganic insulating layer and a first organic insulating layer, wherein the inorganic insulating layer is more proximal to the flexible substrate than the first organic insulating layer, and a plurality of first openings are formed in the inorganic insulating layer, a portion of the first organic insulating layer being in the first openings.

Abstract: A mail processing method and apparatus, a device, a medium, a computer program product, and a computer program provided in the present disclosure, where the method includes: receiving a to-be-sent mail; obtaining, if it is identified that the to-be-sent mail includes an instant messaging group identifier, a group mail address corresponding to the instant messaging group identifier; and taking the group mail address as a recipient address and performing a sending operation on the to-be-sent mail.

Abstract: Provided is a flexible display substrate, including: a peripheral region and a display region. The peripheral region surrounds the display region. The peripheral region has a plurality of corner regions, and at least one of the corner regions includes two first regions and a second region disposed between the two first regions. The first region has a hollow structure, and the second region has at least one notch disposed in an edge of the flexible display substrate.

Abstract: The present disclosure relates to systems and methods for positioning a region of interest (ROI). The systems may obtain an image of an object captured by an imaging device. The systems may extract image information of the image. The systems may obtain feature information of a region of interest (ROI) in the object. The systems may determine position information of the ROI in the image using a positioning model based on the image information of the image and the feature information of the ROI.

Abstract: An OLED display device and a preparation method thereof are provided. The OLED display device includes a flat region and a bent region around the flat region; the bent region is bent toward a backlight side of the flat region, and the bent region includes at least one stretching region; the stretching region comprises a display region and a first etching region, the first etching region is located at an edge of the display region away from the flat region and is connected with at least part the edge of the display region at the side away from the flat region; the display region includes at least one opening, and a boundary of the first etching region and the display region bypasses the opening; the display region includes a first display film layer, and the first etching region is a region where the first display film layer is etched away.

Abstract: A display substrate and a display apparatus. The display substrate includes a base substrate and a circuit structure layer disposed on the base substrate, the circuit structure layer includes a flat region and a bendable region provided on at least one side of the flat region, the bendable region includes at least one stretch region, the stretch region includes a first pixel circuit region and a first power supply trace region, the first power supply trace region is located at one side of the first pixel circuit region away from the flat region, a first stretch hole is provided in the first power supply trace region, and a second stretch hole is provided in the first pixel circuit region.

Abstract: The present disclosure provides a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a pixel region and a stretch hole region which includes a hole region and a partition region; the display substrate includes a base substrate, a structure layer, and an encapsulation structure layer and the partition region includes at least one partition structure surrounding the hole region; the hole region includes a base substrate hole disposed on the base substrate and a structure hole penetrating through the structure layer, the base substrate hole is communicated with the structure hole, at least a portion of an inner wall of the structure hole is covered by at least one encapsulation material layer in the encapsulation structure layer, and an inner wall of the base substrate hole includes a base substrate material segment that is not covered by the encapsulation material layer.

Abstract: Embodiments of the present disclosure provide a stretchable display substrate, a preparation method of the stretchable display substrate, and a display apparatus. The stretchable display substrate includes: a plurality of hole regions; a base; pixel units, disposed on the base; signal lines, disposed on the base, and electrically connected with the pixel units; and a plurality of inorganic insulating layers, stacked on the base. At least one layer of the plurality of inorganic insulating layers has first hollowed-out portions close to the hole regions, and orthographic projections of the first hollowed-out portions on the base do not overlap orthographic projections of the signal lines and the pixel units on the base.

Abstract: The present invention provides a system for data mapping and storing in digital three-dimensional oscilloscope, wherein the fixed coefficients, which are calculated according the parameters and settings of a digital oscilloscope, are stored into a fixed coefficient memory CO RAM, the fixed coefficients are outputted to N fractional operation units through N?1 D flip-flop delay units to multiply with the acquired data x(n) and then be accumulated, thus N fractional calculus results are obtained. In this way, N fractional calculus results can be obtained by performing L/N fractional calculus operations. N fractional calculus results are sent to a signal processing and display module, in which they are converted into a display data through a drawing thread, and the display data are sent to LCD for displaying, thus the fractional calculus operation and display of a input signal in a digital oscilloscope is realized.

Abstract: A random transient power test signal generator based on three-dimensional memristive discrete map, which utilizes a three-dimensional parallel bi-memristor Logistic map module to generate two pseudo-random sequences, and based on the sequences, uses two waveform output modules to generate transient voltage and transient current signals respectively, thus the random transient power testing signal is obtained. The map can significantly improve the complexity of chaos and greatly extend its range of chaos. In addition, a performance evaluation shows the map has more robust hyperchaotic behavior in much larger chaos range. Moreover, the random sequences generated by the map module combines with DDS, which can generate a transient power signal with completely random period, starting phase and ending phase.