Abstract: A three-dimensional graphene antenna includes a three-dimensional graphene radiation layer, a dielectric substrate, a metal layer and a feeder line. The three-dimensional graphene radiation layer is made from porous three-dimensional graphene. A preparation method of the porous three-dimensional graphene includes steps of preparing pressurized solid particles by pressurizing gas into solid micro particles, mixing the pressurized solid particles with a graphene oxide dispersion liquid, removing liquid nitrogen under high pressure and low temperature such that the graphene oxide flakes enwrap around the pressurized solid particles, obtaining a graphene oxide block containing the pressurized solid particles by extruding, sublimating the pressurized solid particles in the graphene oxide block into gas, forming holes in the graphene oxide block and annealing, thereby obtaining the three-dimensional graphene.

Abstract: A method for preparing eye-tracking glasses: providing a substrate assembly, the substrate assembly comprising a functional film, the functional film being located on an outermost surface of the substrate assembly as a first surface, the first surface is provided with electronic components. Spraying a matching material towards the first surface, the matching material accumulating at least at a gap difference between the first surface and the electronic component. Providing a sealing layer, the sealing layer covering the first surface and the electronic components and the matching material disposed on the first surface. Providing a lens, the lens being connected to the functional film and the electronic components by the sealing layer.

Abstract: A method for preparing eye-tracking glasses, comprising the following steps: providing a substrate assembly, the substrate assembly comprising a functional film, the functional film being arranged on a surface of the substrate assembly, and electronic components being arranged on the surface of the functional film. Pressing an injection mold against the substrate assembly to form an injection cavity, and making the surface of the functional film with the electronic components face an interior of the injection cavity. Injecting and molding an optical adhesive in the injection cavity to form a lens, with the electronic components embedded in the lens. Demolding the injection mold from the lens, separating the functional film from the substrate assembly to obtain the eye-tracking glasses.

Abstract: A system and method for operating a robotic system to coordinate and integrate multiple tasks for performing operations is disclosed. The robotic system may identify a set of tasks associated with a triggered operation. Accordingly, the robotic system may coordinate and control actions across subsystems, robotic units, task stations, or a combination thereof to sequentially perform the set of tasks and complete the operation.

Abstract: Disclosed is a method for monitoring the influence of defects in a few-layer two-dimensional material on exciton transport. The method includes: measuring an original few-layer two-dimensional material sample to obtain a first transient absorption dynamic curve; fitting the first transient absorption dynamic curve to obtain a first exciton lifetime; acquiring first TAM images of exciton densities at different delay times; fitting the first TAM images to determine a first diffusion coefficient and a first diffusion distance; performing plasma treatment on the original few-layer two-dimensional material sample for different durations, and obtaining a second transient absorption dynamic curve; fitting the second transient absorption dynamic curve to obtain a second exciton; acquiring and fitting second TAM images of exciton densities at different delay times to determine a second diffusion coefficient and a second diffusion distance; and monitoring the influence of defects on exciton transport.

Abstract: A wiring substrate, a manufacturing method thereof, a light-emitting panel, and a display device are disclosed. The wiring substrate includes: a base substrate (11); and a plurality of metal traces (50) and an organic insulating layer (13), which are located at one side of the base substrate. The metal traces (50) each comprise a first metal layer (141) and a second metal layer (151), which are stacked; the first metal layer (141) is located between the second metal layer (151) and the base substrate (11); an angle between a side wall of the second metal layer (151) and the base substrate (11) is greater than or equal to 90°; the area of a contact face between each of the metal traces (50) and the base substrate (11) is greater than or equal to the area of the surface of the second metal layer (151) opposite the first metal layer (141).

Abstract: Detecting fake news involves receiving a plurality of allegedly real news stories and allegedly fake news stories from one or more websites, receiving a plurality of user posts to a social media platform relating to the plurality of allegedly real news stories and allegedly fake news stories; receiving a plurality of user engagements related to the plurality of user posts, receiving user profile information, and social media network information, for users creating the plurality of user posts to the social media platform, and users participating in the engagements related to the plurality of user posts, and classifying each of the received plurality of allegedly real news stories and allegedly fake news stories as one of a real news story and a fake news story based on the analyzed content and analyzed social media context.

Abstract: The present disclosure relates to the method and apparatus for typesetting text, an electronic device, and a storage medium, which relates to the field of computer technology. The method includes: determining an original font in a target text in a collaborative document; determining whether a first terminal in the collaborative terminals supports the original font; in response to determining that the first terminal does not support the original font, obtaining character size data of the original font; in response to determining that the first terminal obtains the character size data of the original font, displaying the target text in a first font supported by the first terminal, and typesetting the target text in the first font according to the character size data of the original font.

Abstract: The present invention relates to an adjustable torsion bar system and an anti-roll method, the adjustable torsion bar system is formed through the adjustable hydraulic connecting rods; and by controlling the flow of the liquid media, the characteristics of the hydraulic connecting rods are changed so that the length of the connecting rods has the characteristics of unchanged, unidirectional follow-up elongation or unidirectional follow-up shortening. Thus, the anti-rolling torsion bar system can provide the bidirectional anti-rolling torque or unidirectional anti-rolling torque to satisfy the safety driving requirements of the railway vehicle on different rails.

Abstract: Disclosed is a multi-dimensional analysis method for a tripping risk of a whole transmission line due to a lightning shielding failure. A quantity of thunderstorm days, a tower size, a terrain proportion, an altitude, and insulation configuration data are collected for a transmission line for which a tripping risk due to a lightning shielding failure needs to be analyzed, and a striking distance, an exposure distance, a lightning resisting level of the line after altitude factor correction, and a lightning shielding failure risk of a single-base tower are calculated in turn. Characteristics of a lightning shielding failure under different nominal heights, quantities of thunderstorm days, and terrains are studied. Representative combination conditions are selected to calculate a tripping risk of a typical tower due to the lightning shielding failure. A weight coefficient is extracted, to calculate a tripping risk of the whole line due to the lightning shielding failure.

Abstract: A massive multiple-input multiple-output channel emulation method and a device based on optical matrix switching are provided. The method is realized based on a massive multiple-input multiple-output channel emulation system, which includes a plurality of channel preprocessing subsystems, an optical switching subsystem, a plurality of channel characteristic emulation subsystems, a self-checking and self-correcting subsystem, a mathematical simulation and monitoring subsystem and a time-frequency synthesis and distribution subsystem. All the subsystems are interconnected by various optical fiber connections, which are used to transmit high-speed data signals, communication information, control instructions, frequency, pulse and time signals, and have the centralized-distributed layout ability of various devices in the system based on long-distance transmission of optical fiber signals, and have the massive parallel expansion ability of the number of system signal input and output links.

Abstract: A hydrogen leakage detecting material, and a preparation method therefor and the use thereof are provided. The hydrogen leakage detecting material has a color-changing substrate and an active component. The color-changing substrate is hexagonal-phase tungsten trioxide having a microstructure of a nanorod bundle formed by multiple nanorods, and the active component is noble metal nanoparticles. A starting reduction temperature of the hydrogen leakage detecting material on hydrogen is less than or equal to 100° C. The hydrogen leakage detecting material has a relatively high sensitivity to hydrogen under different conditions, and has significant color change and a shorter color change response time.

Abstract: The present disclosure generally relates to a surgical instrument. In some embodiments, the flexible surgical instrument, comprising: a distal structural body comprising first distal structural segment and second distal structural segment, the first distal structural segment comprising a first distal fixing disk and first distal segment structural backbones, the second distal structural segment comprising a second distal fixing disk and second distal segment structural backbones; and a proximal structural body comprising a proximal structural segment, the proximal structural segment comprising a proximal fixing disk, first proximal segment structural backbones, and second proximal segment structural backbones, the first proximal segment structural backbones being connected to the first distal segment structural backbones in a crossed arrangement; or the second proximal segment structural backbones being connected to the second distal segment structural backbones in a crossed arrangement.

Abstract: A method and system for recognizing TLS fingerprints based on finite-state machines is provided, wherein the system at least includes: a model inference module, for learning state machine models of target TLS implementations according to mapping information sent by a message mapping module; a fingerprint extracting module, for analyzing the state machine models and extracting multi-level fingerprints of the target TLS implementations; and a version recognizing module, for verifying the multi-level fingerprints for validity and/or recognizing version information of unknown TLS implementations. As compared to other network protocol identification systems, the present disclosure can identify and judge fine-grained information such as the specific implementation type and version of the specific TLS implementation. At the same time, the inventive method is highly automated, thereby ensuring good usability and scalability.

Abstract: The present disclosure provides a wiring substrate, a manufacturing method thereof, a light-emitting substrate, a display device. The wiring substrate includes a base substrate including a functional region and a bonding region, a first conductive layer at least in the functional region; a second conductive layer that is on the first conductive layer and at least in the functional region and connected to the first conductive layer; a first insulating layer on the second conductive layer and including a main part and an opening. At least one of the first and second conductive layers includes multiple electrodes in the bonding region and extending along a first direction, each electrode includes a first end adjacent to the functional region in the first direction, an orthographic projection of the main part on the base substrate at least partially overlaps with an orthographic projection of the first end on the base substrate.

Abstract: A massive multiple-input multiple-output channel emulation method and a device based on optical matrix switching are provided. The method is realized based on a massive multiple-input multiple-output channel emulation system, which includes a plurality of channel preprocessing subsystems, an optical switching subsystem, a plurality of channel characteristic emulation subsystems, a self-checking and self-correcting subsystem, a mathematical simulation and monitoring subsystem and a time-frequency synthesis and distribution subsystem. All the subsystems are interconnected by various optical fiber connections, which are used to transmit high-speed data signals, communication information, control instructions, frequency, pulse and time signals, and have the centralized-distributed layout ability of various devices in the system based on long-distance transmission of optical fiber signals, and have the massive parallel expansion ability of the number of system signal input and output links.

Abstract: Provided are a determination method and apparatus of a main shaft bearing state, an electronic device, and a storage medium. The method includes the following steps: Bearing swing data of a target main shaft bearing at multiple moments within a preset time period are acquired; at least one current data period and current-period bearing swing data in each current data period are determined according to the multiple pieces of bearing swing data; a first abrupt change value and a second abrupt change value are determined according to the current-period bearing swing data in each current data period; and a main shaft bearing state of the target main shaft bearing is determined according to the first abrupt change value and the second abrupt change value.

Abstract: Systems, methods and computer-readable medium for predicting a depth for a video frame are disclosed. An example method may include steps of: receiving a plurality of training data, each comprising a set of consecutive video frames and a depth representation of a subsequent video frame to the consecutive video frames; receiving a pre-trained neural network model f? having a plurality of weights ?; while the pre-trained neural network model f? has not converged: computing a plurality of second weights ?i?, based on each set of consecutive video frames, and updating the plurality of weights ?, based on the plurality of training data and the plurality of second weights ?i?; receiving a plurality of new consecutive video frames with consecutive timestamps; and predicting a depth representation of video frame immediately subsequent to the new consecutive video frames based on the updated plurality of weights ?.

Abstract: The present disclosure provides an insulating plug, a high-voltage cable, and an X-ray tube. The insulating plug includes a first wire and an insulating layer group covering the first wire. The insulating layer group includes at least two insulating layers. The insulating layer group includes a first insulating layer covering the first wire, and a second insulating layer covering the first insulating layer. A volume resistivity of the second insulating layer is greater than a volume resistivity of the first insulating layer.

Abstract: A chip and a chip test method are provided. The chip includes a receiver circuit and a test circuit. The receiver circuit includes a signal receiving unit and a signal bump. The signal bump is coupled to the signal receiving unit. The test circuit is coupled to a circuit node between the signal receiving unit and the signal bump. The test circuit includes a digital-to-analog converter, a first resistor, and a unit gain buffer. A first terminal of the first resistor is coupled to the circuit node. An output terminal of the unit gain buffer is coupled to a second terminal of the first resistor. A first input terminal of the unit gain buffer is coupled to an output terminal of the digital-to-analog converter. A second input terminal of the unit gain buffer is coupled to an output terminal of the unit gain buffer.