Abstract: A well-killing system for ultra-deep well drilling with co-existence of overflow and lost circulation is provided. An upper part of a wellhead blowout preventer is connected to a first mud pump and a lost circulation material mud tank through a pipeline, a first three-way control valve, and a second three-way control valve. A lower port of the second three-way control valve is connected to a second mud pump and a mud pit. A lower port of the first three-way control valve is connected to a first well-killing fluid tank and a second well-killing fluid tank. A gas-liquid separation tank is connected to a side of a wellhead device. A first pressure sensor and a first flowmeter are provided on a left port of the first three-way control valve. A second pressure sensor and a second flowmeter are provided at a left port of a third three-way control valve.

Abstract: The present disclosure discloses a method for preparing a polyurethane foam using an extract of cotton spinning black liquor, including the following steps: step (1): extracting biomass in cotton spinning black liquor by acid precipitation to obtain the extract of cotton spinning black liquor; step (2): pretreating the extract of cotton spinning black liquor, and uniformly mixing the pretreated extract of cotton spinning black liquor with a polyether polyol to obtain a mixed raw material; and step (3): preparing the polyurethane foam from the mixed raw material, dibutyltin dilaurate, distilled water, a foam stabilizer, aluminum hypophosphite and an isocyanate by one-step foaming. The present disclosure can solve the problems of high treatment cost and low utilization rate of the existing cotton spinning black liquor.

Abstract: There are proposed methods, devices, and media for media data processing. In a method, a spectrogram representation is obtained for the media data from a spectrogram of the media data, and a waveform representation is obtained for the media data from a waveform of the media data. A fusion representation is generated for the media data based on the spectrogram representation and the waveform representation. A classification of the media data is determined based on the fusion representation. With the proposed solutions, the media data may be processed in a more accurate way.

Abstract: A process and a device for continuous flow side-chain alkylation which relate to the technical field of organic synthesis. In this process and the device for continuous flow side-chain alkylation, an ibuprofen raw material is prepared with alkylbenzene as a raw material. This raw material alkylbenzene is easily available and has a low cost, and is suitable for scale-up production. Moreover, an entire preparation process adopts continuous chemical synthesis, and a reaction time of each stage can be precisely controlled, which is beneficial to control a total reaction time and reduce an amount of impurities produced. In this way, a purity and a yield of the ibuprofen raw material are improved. In summary, a continuous synthesis method for side-chain alkylation of alkylbenzene provided by the present disclosure shows a low cost and a high yield.

Abstract: Provided is a display panel. In the display panel, a plurality of first drive units included in a first drive circuit can output gate driving signals based on a turn-on signal provided by a first turn-on line coupled with the first drive units. A plurality of second drive units included in a second drive circuit can output gate driving signals based on a turn-on signal provided by a second turn-on line coupled with the second drive units. First gating units can control on-off between the corresponding first drive units and one part of pixels based on an enable signal provided by a first enable line coupled with the first gating units. Second gating units can control on-off between the corresponding second drive units and the other part of the pixels based on an enable signal provided by a second enable line coupled with the second gating units.

Abstract: A ductile material, a method for manufacturing a ductile member, and an anti-collision device for bridge piers, wherein the ductile material includes specific components in parts by mass as follows: 50-62 parts of thermoplastic polyurethane, 11-33 parts of neodymium-iron-boron, 12-24 parts of nickel-titanium alloy, 2-3 parts of metal magnetic powder, and 1-2 parts of polypropylene or polyethylene or polylactic acid or polyetheretherketone. The use of the ductile material, the method for manufacturing a ductile member, and the anti-collision device for bridge piers facilitates navigation.

Abstract: The disclosure provides a display panel and a display device. The display panel includes: a base substrate, a transistor array layer, a pixel defining layer, touch electrodes. The area of opening region of first color sub-pixel is smaller than that of opening region of third color sub-pixel, the area of opening region of second color sub-pixel is smaller than that of opening region of third color sub-pixel. An orthogonal projection of second capacitor in first color sub-pixel and an orthogonal projection of touch electrodes have a first auxiliary overlap area, an orthogonal projection of second capacitor in second color sub-pixel and orthogonal projection of the touch electrodes have a second auxiliary overlap area, an orthogonal projection of second capacitor in third color sub-pixel and orthogonal projection of touch electrodes have a third auxiliary overlap area. The first and/or second auxiliary overlap area is larger than the third auxiliary overlap area.

Abstract: An integrated plugging and perforating operation system is provided, including an operation truck, a wellhead equipment pry, and a centralized control room. A mechanical mechanism and a power mechanism are arranged on a chassis of the operation truck. The mechanical mechanism includes a turntable assembly, where a telescopic arm assembly is installed on the turntable assembly, a mechanical arm assembly for logging operation is installed at an operating end of the telescopic arm assembly, and a logging winch assembly and a follow-up winch assembly are arranged at a counterweight end of the telescopic arm assembly to form a counter weight of the telescopic arm assembly. The power mechanism is configured for providing power output to the mechanical mechanism.

Abstract: A wellhead automatic positioning method and a system of a plugging and perforating operation machine are provided. The method includes: determining a wellhead position, and acquiring standard positioning parameters of a boom according to the wellhead position and a tool string length, where the positioning parameters include a standard extension length L of the boom, a standard lifting length J, and an included angle ? between a projection of the boom and a wellhead; acquiring actual positioning parameters of the boom, where the actual positioning parameters include an actual length L? of the boom, an actual lifting length J?, and an initial angle ?? between the projection of the boom and the wellhead; and according to the standard positioning parameters and the actual positioning parameters of the boom, making the boom to extend and retract, lift and lower, and rotate to complete automatic positioning of the wellhead.

Abstract: Introduced here is an approach to mitigating (e.g., lessening or eliminating) the high-frequency interference pattern that is caused by uneven surfaces along the coupling interface formed between the waveguide and probe of an interferometric sensing system. The approach is to reduce the high-frequency interference pattern caused by the interference when a waveguide?for example, in the form of an optical fiber?and a probe are directly coupled to one another. Specifically, the coupling surface of the waveguide can be treated, for example, with sandpaper, sandblasting, or acid etching, to create a frosted surface texture. In operation, the frosted surface scatters the light transmitted through the waveguide, preventing the high-frequency interference pattern from occurring.

Abstract: A nuclide identification method, a system and an electronic device are provided, which relates to the field of nuclide identification. According to statistical characteristics, a background probability density function and a Compton probability density function in a ROI are determined. An energy Bayesian factor and a time Bayesian factor are determined based on energy and time interval information in a sequence of the nuclear detection events obtained by measurement. By combining the two factors, Compton plateau can be effectively identified and distinguished.

Abstract: A film mask, a manufacturing method thereof, a display panel and a display device are provided. The mask includes a frame and a first align mask. The frame includes two first frame edges extending along a first direction and arranged at intervals along a second direction and two second frame edges extending along the second direction and arranged at intervals along the first direction. The first frame edges and the second frame edges intersect to form a quadrilateral. The first frame edges and the second frame edges include first surfaces and second surfaces which are oppositely disposed. The first surfaces of at least three angles of the four angles are provided with the first align mask. The first align mask is provided with a first align identifier. The first direction intersects with the second direction.

Abstract: A mask sheet for evaporation on a substrate is provided, and the mask sheet includes: a plurality of first ribs extending in a first direction; and a plurality of second ribs extending in a second direction intersecting the first direction, the mask sheet includes a first region for an evaporation of a first exposure region of the substrate and a second region for an evaporation of a second exposure region of the substrate, a third rib is provided at a boundary of the first region and the second region so as to shield an overlapping exposure region between the first exposure region and the second exposure region, the third rib includes a first sub-rib, a second sub-rib, and a spacer for separating the first sub-rib and the second sub-rib, and the third rib has a width greater than that of the first rib.

Abstract: A display substrate and a display device are provided. The display substrate includes sub-pixels and a pixel defining pattern. The sub-pixel includes a light emitting element including a light emitting region; the light emitting element includes a light emitting functional layer, and a first electrode and a second electrode, and the second electrode covers the light emitting region of the sub-pixel. The pixel defining pattern includes first openings; one sub-pixel corresponds to at least one first opening; at least a portion of the light emitting element of the sub-pixel is in the first opening corresponding to the sub-pixel, and the first opening exposes the first electrode. The pixel defining pattern further includes second openings located between at least part of sub-pixels; and at least one layer of the light emitting functional layer and at least a portion of the second electrode are disconnected at the second opening.

Abstract: A display substrate and a display device are provided. Sub-pixels in the display substrate includes a light emitting element including a light emitting region. The light emitting element includes a light emitting functional layer, a first electrode and a second electrode. One defining structure is disposed between the light emitting regions of two adjacent sub-pixels having different colors. The adjacent sub-pixels include a first sub-pixel and a second sub-pixel. A ratio of a distance between edges, close to each other, of the light emitting region of the first sub-pixel and the one defining structure to a distance between edges, close to each other, of the light emitting region of the second sub-pixel and the one defining structure is 0.1 to 0.8. At least one layer of the light emitting functional layer is disconnected at an edge of the structure.

Abstract: The present disclosure provides a pixel structure, a display substrate and a display device, and relates to the field of display technology. The pixel structure includes a plurality of sub-pixels located in an imaginary quadrilateral, the plurality of sub-pixels include a first color sub-pixel, a second color sub-pixel and at least one third color sub-pixel, the imaginary quadrilateral includes a first inner corner and a second inner corner that are opposite to each other, and a third inner corner and a fourth inner corner that are opposite to each other. The first color sub-pixel is located at the first inner corner c1, the second color sub-pixel 22 is located at the second inner corner c2, and at least one third color sub-pixel is located at the third inner corner c3 and the fourth inner corner c4.

Abstract: The present application relates to the field of medical devices, and in particular to a suture anchor. A suture anchor includes an anchor head and an anchor body, wherein a threading hole is formed on the anchor head, the anchor body includes a side pressing portion integrally formed by a plurality of layers of round tables, and at least two opposite longitudinal cuts are formed on each round table of the side pressing portion; from a direction close to the anchor head to a direction away from the anchor head, positions of the longitudinal cuts on adjacent round tables are deflected toward a same side.

Abstract: The technology of this application relates to a network interface card. The network interface card includes a parser and at least one shared connector. The parser receives a first SEND message that is from a host client and that corresponds to a first QP connection, and distributes the first SEND message to a first shared connector in the at least one shared connector. The first SEND message includes an RDMA operation command. The first shared connector obtains NVME information that is sent to a first controller and that corresponds to the first QP connection. The first shared connector interacts with a second controller when a disconnection event of a link between the first shared connector and the first controller is detected. The first shared connector obtains a WQE from the second controller. The first shared connector sends a first RDMA message corresponding to the first QP connection to the host client based on the WQE.

Abstract: A CaTiO3-based oxide thermoelectric material and a preparation method thereof are disclosed. The CaTiO3-based oxide thermoelectric material has a chemical formula of Ca1-xLaxTiO3, where 0<x?0.4. The present disclosure makes it possible to prepare a CaTiO3-based thermoelectric material with properties comparable to n-type ZnO, CaTiO3, SrTiO3 and other oxide thermoelectric materials. Among them, the La15 sample has a power factor reaching up to 8.2 ?Wcm?1K?2 (at about 1000 K), and a power factor reaching up to 9.2 ?Wcm?1K?2 at room temperature (about 300 K); and a conductivity reaching up to 2015 Scm?1 (at 300 K). The CaTiO3-based oxide thermoelectric material exhibits the best thermoelectric performance among calcium titanate ceramics. The method for preparing the CaTiO3-based oxide thermoelectric material of the present disclosure is simple in process, convenient in operation, low in cost, and makes it possible to prepare a CaTiO3-based ceramic sheet with high thermoelectric performance.