Abstract: The present disclosure relates to a polyorganosiloxane comprising the following structural formula: X—[Si(R1)2O]—[Si(R2)2O]m—[SiR2CaH2a+1O]n—[Si(R1)2]—X, where a is an arbitrary integer between 6 and 18, n is an arbitrary number between 0.7 and 20, m is an arbitrary number between 10 and 1500, m/n is an arbitrary number greater than 20, R1 or R2 is a C1-C5 alkyl group, X represents one or more groups selected from among C2-C6 alkenyl, alkoxy, hydroxyl and hydrogen. The polyorganosiloxane can significantly lower the viscosity, and improve the flowability and processability, of the resulting silicone composition, compared with other polyorganosiloxanes at the same thermally conductive filler loading. Meanwhile, for thermally conductive silicone compositions with the same viscosity, the polyorganosiloxane used as the base polymer can accept a significantly higher level of the thermally conductive fillers, thereby improving their thermal conductivity.

Abstract: A high-efficiency permeability enhancement device for coal-seam gas drainage, wherein, including: a high-pressure gas cylinder, an air compressor being connected to a gas outlet of the high-pressure gas cylinder, a drill pipe, a plurality of jet nozzles being evenly disposed in a circumferential direction of the drill pipe, located below a drill bit, arranged outwards along a radial direction of the drill pipe, and in communication with the gas outlet of the high-pressure gas cylinder; and a plurality of self-driving drill bits being evenly disposed in the circumferential direction of the drill pipe, and located below the jet nozzles, wherein an end of the drill pipe is provided with the drill bit, a front end of the self-driving drill bits is radially defined with a plurality of front spray holes, and the self-driving drill bits are in communication with the gas outlet of the high-pressure gas cylinder.

Abstract: This application provides a hardware device calling method and apparatus. A first terminal device obtains hardware device information of a second terminal device, where the hardware device information includes hardware device capability information of the at least one hardware device. The first terminal device creates one virtual device driver for each hardware device of the at least one hardware device based on the hardware device information through a virtual bus driver. When detecting a message request of calling a first hardware device of the at least one hardware device by a first application through a first virtual device driver, the first terminal device receives a data stream from the second terminal device over a data channel, where the first virtual device driver is created by the virtual bus driver based on hardware device information of the first hardware device.

Abstract: Provided are a display substrate and a display apparatus, the display substrate includes: a base substrate; at least one isolation column; an encapsulation layer, arranged on a side of the isolation column facing away from the base substrate; and an anti-oxidation layer, arranged on a side of the encapsulation layer facing away from the base substrate; where in a thickness direction of the base substrate, the isolation column includes a first metal layer, a second metal layer and a third metal layer which are arranged sequentially in a stacked mode, and each side face of the second metal layer retracts inwards relative to the first metal layer and the third metal layer to form a concave portion.

Abstract: Techniques for performing low-rank self-calibration of 3D geometric foundation models include receiving a plurality of unlabeled images of a scene, generating a pair of point maps and a pair of confidence maps for a first pair of unlabeled images of the plurality of unlabeled images, determining intrinsic camera parameters for the first pair of unlabeled images, refining the pair of point maps based on the intrinsic camera parameters to generate a refined pair of point maps, generating pseudo-labels for the first pair of unlabeled images based on the refined pair of point maps and the pair of confidence maps, and fine tuning a pretrained machine learning model based on the pseudo-labels to generate a fine-tuned machine learning model.

Abstract: Disclosed are an online meeting interface method and apparatus, a medium, and a computer program product, which relate to the technical field of online meetings. The method includes obtaining a frame background image of the online meeting in a same-frame mode; generating a same-frame picture based on the frame background image and video pictures of participants, the video pictures of different participants being displayed at different positions of the frame background image; and pushing the same-frame picture to clients of the participants. The clients may display the same-frame picture in the online meeting interface.

Abstract: Provided are a display substrate and a display apparatus, the display substrate includes: a base substrate, having a display area, a hole area and an isolation area; at least one isolation column; an encapsulation layer, arranged on a side of the isolation column facing away from the base substrate, the encapsulation layer covers the isolation area and the display area, and a step structure is formed in a position of the encapsulation layer covering an edge of each isolation column; and an anti-oxidation layer, arranged on a side of the encapsulation layer facing away from the base substrate, an orthographic projection of the anti-oxidation layer on the base substrate covers an orthographic projection of the vertical step portion of at least one of the step structure on the base substrate.

Abstract: An apparatus and related methods for continuous electrodeposition of metals from impure metal feedstocks are provided. Elemental metals (e.g., Co, Cu) can be deposited from metal feedstocks (e.g., metal compounds such as hydroxides, oxyhydroxides, oxides, or sulfides; ores, including concentrates and mine wastes; tailings; alloys; recycled waste; or scrap metal) in a molten salt electrolyte. An apparatus for continuous electrodeposition comprises: a working electrode comprising a rotary drum having a central axis and a lateral surface, wherein the rotary drum is configured to rotate about the central axis; a counter electrode; and a vessel with an electrolyte bath disposed therein, the electrolyte bath comprising a molten salt electrolyte, wherein the lateral surface of the working electrode is configured to be at least partially submerged in the electrolyte bath. Methods of the present disclosure enable recovery of metals from low concentrations or via processing of ores or dilute waste streams.

Abstract: Disclosed are an online meeting interface method and apparatus, a medium, and a computer program product, which relate to the technical field of online meetings. The method includes obtaining a frame background image of the online meeting in a same-frame mode; generating a same-frame picture based on the frame background image and video pictures of participants, the video pictures of different participants being displayed at different positions of the frame background image; and pushing the same-frame picture to clients of the participants. The clients may display the same-frame picture in the online meeting interface.

Abstract: A high-efficiency permeability enhancement device for coal-seam gas drainage, wherein, including: a high-pressure gas cylinder, an air compressor being connected to a gas outlet of the high-pressure gas cylinder, a drill pipe, a plurality of jet nozzles being evenly disposed in a circumferential direction of the drill pipe, located below a drill bit, arranged outwards along a radial direction of the drill pipe, and in communication with the gas outlet of the high-pressure gas cylinder; and a plurality of self-driving drill bits being evenly disposed in the circumferential direction of the drill pipe, and located below the jet nozzles, wherein an end of the drill pipe is provided with the drill bit, a front end of the self-driving drill bits is radially defined with a plurality of front spray holes, and the self-driving drill bits are in communication with the gas outlet of the high-pressure gas cylinder.

Abstract: A method for predicting and controlling a water level of a series water conveyance canal on the basis of a fuzzy neural network is disclosed. The method includes: performing the relationship between a sluice opening degree and an open canal control water level by means of a fuzzy neural network, and constructing an upstream water level controller of a coupled predictive control algorithm; solving an optimal control rate of the upstream water level controller using a gradient optimization algorithm on the basis of a control target of the upstream water level controller; and generating a control strategy by collecting actually measured water level change information and multiplying the actually measured water level change information by the optimal control rate on the basis of the solved optimal control rate, thereby fulfilling the object of predicting and controlling the water level.

Abstract: A planar transistor device is disclosed including a gate structure positioned above a semiconductor substrate, the semiconductor substrate comprising a substantially planar upper surface, a channel region, a source region, a drain region, and at least one layer of a two-dimensional (2D) material that is positioned in at least one of the source region, the drain region or the channel region, wherein the layer of 2D material has a substantially planar upper surface, a substantially planar bottom surface and a substantially uniform vertical thickness across an entire length of the layer of 2D material in the gate length direction and across an entire width of the layer of 2D material in the gate width direction, wherein the substantially planar upper surface and the substantially planar bottom surface of the layer of 2D material are positioned approximately parallel to a substantially planar surface of the semiconductor substrate.

Abstract: The present disclosure relates to a method for preparing polyorganosiloxanes, comprising the following steps: a) reacting together a hydroxyl-terminated polysiloxane and a dialkoxysilane or an oligomer thereof in the presence of Catalyst 1, and b) reacting the product of Step a) with an endcapper in the presence of Catalyst 2 to form the polyorganosiloxane. According to this method, poly-organosiloxanes with an appropriate degree of the polymerization and viscosity are prepared by the polycondensation and equilibration reactions sequentially, and can significantly reduce the viscosity, and improve the flowability and thermal conductivity of the resulting silicone compositions, compared with other polysiloxanes at the same high thermally conductive filler loading.

Abstract: An integrated detection test device for a drill bit and a rotary blowout preventer and a detection method thereof are provided. The test device includes a support frame, a rotary shaft is mounted on the support frame, and an upper end of the rotary shaft is connected to a piston rod of a first hydraulic cylinder fixed on the support frame; and the rotary shaft is connected to a driving device through a rotary disc sleeved outside the rotary shaft. A pit sinking to a fixing plane of the support frame is arranged below the support frame; and an L-shaped track and a transport vehicle slidably connected to the track are mounted in the pit and used to transport the rotary blowout preventer or the drill bit test bench to a test position.

Abstract: One embodiment of a method for controlling a system includes generating a plurality of initializations using a trained machine learning model, performing a plurality of instances of an iterative technique based on the plurality of initializations to generate a plurality of results, generating a control signal based on one or more results included in the plurality of results, and transmitting the control signal to the system to cause the system to perform one or more operations.

Abstract: A real-time abnormity-diagnosing and interpolation method for water regime-monitoring data relates to the technical field of monitoring water regime. This method includes the following steps: acquiring water regime-monitoring data, drawing a box plot, recognizing and diagnosing abnormal data in real time based on the box plot, performing grey correlation analysis on other variables related to a predictor variable, building a BP neural network model and making training, applying the BP neural network model to predict water regime-monitoring data in real time, and performing abnormity diagnosis and data interpolation. Adopting this method, we can effectively enhance predicting and monitoring the water regime-monitoring data in real time, and diagnose abnormal data and make interpolations in time, thereby improving the reliability of data, objectively reflecting water regime changes, and effectively guiding engineering scheduling.

Abstract: Disclosed in the present disclosure are a flood event identification method and apparatus, an electronic device, and a readable storage medium. The method includes: obtaining runoff time sequence data; obtaining initial peak occurrence time by using N continuous first-order difference values in a first-order difference sequence of the runoff time sequence data; obtaining initial start and end time by using M continuous first-order difference values in the first-order difference sequence; and screening out determined peak occurrence time from the initial peak occurrence time, and screening out start and end time corresponding to the peak occurrence time from the initial start and end time. With the technical solution provided by the present disclosure, flood events can be automatically selected with high efficiency and accuracy.

Abstract: Anti-corrosion and low-heat-conduction annulus protection fluid for deep-sea oil and gas exploitation and a preparation method thereof are provided. The annulus protection fluid includes: a polymer solution: 100 parts, clear water III: 100 parts to 500 parts, a thermally-insulating material: 20 parts, a corrosion inhibitor: 1 part to 7 parts, and xanthan gum: 0.3 parts to 0.5 parts, wherein the polymer solution is a mixture of a polymer and clear water II in a mass ratio of 1:(22-28); and the polymer includes the following raw materials: clear water I: 100 parts, an acrylamide: 15 parts to 20 parts, 2-2-methylpropanesulfonic acid: 5 parts to 10 parts, a crosslinking agent: 0.1 parts to 0.3 parts, and an initiator: 0.5 parts to 1 part. The annulus protection fluid exhibits excellent thermal insulation performance and corrosion resistance, and avoids the generation of hydrates and the decomposition of hydrate layers at a wellhead.

Abstract: Provided are a display substrate and a display apparatus, the display substrate includes: a base substrate, having a display area, a hole area and an isolation area; at least one isolation column; an encapsulation layer, arranged on a side of the isolation column facing away from the base substrate, the encapsulation layer covers the isolation area and the display area, and a step structure is formed in a position of the encapsulation layer covering an edge of each isolation column; and an anti-oxidation layer, arranged on a side of the encapsulation layer facing away from the base substrate, an orthographic projection of the anti-oxidation layer on the base substrate covers an orthographic projection of the vertical step portion of at least one of the step structure on the base substrate.

Abstract: An interconnection structure for IC package onto the external device is discussed. The IC package has a voltage regulator contained therein; and the external device has a load assembled thereupon. A plurality of connection devices with elasticity are attached to the IC package, so that when a perpendicular force is applied to the connection devices, the IC package is electrically coupled to the external device to provide power supply to the load with ease replacement.