Abstract: The invention relates to a large-scale three-dimensional physical simulation test system for the whole development process of deep engineering rock burst. A CO2 blast cracking device, a dynamic fiber grating and ultrasonic probes are pre-embedded in a physical model sample of similar materials. Acoustic emission probes are pre-mounted on the boundary of a sample. A tunnel excavated in the sample is provided with a three-way acceleration sensor and an industrial endoscope. A sample 3D printer and a drop hammer impact device are arranged outside the three-dimensional static stress loading device. A hydraulic oil source and a controller are arranged outside the three-dimensional static stress loading device and mounted on the ground. The controller is connected with a computer.

Abstract: Embodiments of a three-dimensional (3D) memory device and method for forming the 3D memory device are provided. In an example, the 3D memory device includes a plurality of conductor layers extending over a substrate, a channel structure vertically extending through the conductor layers to the substrate, and a source structure extending through the conductor layers to the substrate. The channel structure may include a blocking layer having a plurality of blocking portions disconnected from one another. Each of the blocking portions may include (i) a vertical blocking portion under a respective conductor layer, and (ii) at least one lateral blocking portion covering a respective lateral surface of the respective conductor layer. The channel structure may also include a memory layer having a plurality of memory portions disconnected from one another, each of the memory portions under and in contact with the respective vertical blocking portion.

Abstract: Provided herein is a method of separating spandex from textile blends using biosolvents. The recovered material is of high purity while the chemical structure and molecular weight remain substantially unaffected by the treatment.

Abstract: This application provides a rotating mechanism, a support apparatus, and a terminal with a foldable screen. A problem that a rotating part with a large volume affects lightening and thinning of an existing terminal with a foldable screen is resolved. A transmission assembly is in a transmission connection to a first swing arm and a second swing arm, so that the first swing arm and the second swing arm rotate between a folded position and an unfolded position. When the first swing arm and the second swing arm rotate from the folded position to the unfolded position, a connection plate moves in a direction away from the shaft cover, and when the first swing arm and the second swing arm rotate from the unfolded position to the folded position, the connection plate moves in a direction close to the shaft cover.

Abstract: Embodiments of the present disclosure provide a display substrate and a display panel. The display substrate has a light-transmissive region and a light-shielding region, and the light-shielding region includes a main support region and a secondary support region. The display substrate includes a substrate, an alignment layer on the substrate, and a convex structure on the alignment layer. The convex structure is on a side of the alignment layer distal to the substrate and at least in the main support region, and a distance from a surface of the convex structure distal to the substrate to the substrate is greater than a distance from a surface of the alignment layer distal to the substrate to the substrate.

Abstract: A stair cleaning robot based on retractable rotational arms, including a cleaning robot body, wherein the cleaning robot body includes a machine body, a control system disposed at the top of the machine body, and a cleaning mechanism disposed at the bottom of the machine body; a first retractable rotational arm mechanism is disposed on the left side of the machine body, a second retractable rotational arm mechanism is disposed on the right side of the machine body, and the first retractable rotational arm mechanism and the second retractable rotational arm mechanism are disposed in a bilateral symmetry manner; the control system includes a control plate, a battery and a radar which are disposed on a control seat; a first reset sensor is disposed near the radar, and a second reset sensor is disposed near the control plate.

Abstract: The present disclosure provides a display substrate and a display apparatus. The display substrate includes a base substrate, including a display region and a frame region located on at least one side of the display region; a transistor, located on the base substrate, wherein the transistor is located in the display region and includes a gate, a first electrode and an active layer; and a protective structure, located on the base substrate, wherein the protective structure is provided in the frame region and close to the display region, and the protective structure is in the same layer as and is made of the same material as at least one of the active layer, the gate or the first electrode.

Abstract: The embodiments of the present disclosure provide a device for sample collection and a method for sample collection. The device for sample collection comprises a collection part, a detection part, and a connection part configured to connect the collection part and the detection part. The collection part includes a core body. The connection part includes a hollow structure. At least a portion of the core body is disposed in the hollow structure. The core body has hydrophilicity. The device for sample collection is provided with the core body with strong hydrophilicity in the collection part, the core body has a large hydrophilic surface, and the core body absorbs the sample, so that a collected sample volume and efficiency of collection can be improved. In addition, the core body has a maintenance effect on the sample, achieving an unlimited collection angle.

Abstract: The present disclosure relates to methods for producing functional regenerated cellulose composite fibers and products thereof. The methods can be conducted with the use of recycled and/or virgin cellulose powder.

Abstract: The present disclosure provides a display panel and a driving method thereof. The display panel includes a substrate and a scan line, a light control device, and a display device on the substrate. The scan line is electrically connected to the light control device and the display panel, so that the light control device and the display device operate simultaneously.

Abstract: The disclosure relates to a method, apparatus, readable medium, and electronic device for live stream interaction. The method includes: in accordance with displaying of a first control at a first target position of a live stream interface, obtaining a first duration during which a user watches the live stream interface; in accordance with a determination that the first duration is greater than or equal to a first predetermined duration threshold, switching the first control to a second control, and displaying the second control at a second target position of the live stream interface; and in response to a first operation command performed by the user on the second control, allocating a virtual resource to the user. In this way, interaction modes of a live stream room are enriched, and an activity level of the live stream room can be improved.

Abstract: Provided are a crucible combination and a thermal field assembly. The crucible combination includes a susceptor holder; a susceptor body disposed on the susceptor holder, the susceptor body comprises a crucible installation cavity that gradually increases from the susceptor holder in a direction departing from the susceptor holder; and a crucible disposed in the crucible installation cavity, an outer surface of the crucible is an outer surface that gradually increases from the susceptor holder in the direction departing from the susceptor holder, the outer surface and an inner surface of the crucible installation cavity are arranged oppositely, and a softening temperature of the susceptor body is greater than the softening temperature of the crucible.

Abstract: Provided in the present invention is an iridium-based catalyst, which is characterized in that the chemical structural formula of the iridium-based catalyst is: wherein Ph is a phenyl, R is a methyl or an ethyl, and X is one or more of CH3CO2, NO3, Cl, BF4, PF6 and SbF6. In the present invention, a rhodium-based catalyst in the prior art is replaced with the iridium-based catalyst, such that the reaction cost is reduced, and the yield of reactants is increased.

Abstract: Provided a wide-angle lens includes: first lens, second lens, third lens, fourth lens, fifth lens, sixth lens, and seventh lens arranged sequentially from object surface to image surface along optic axis; first lens and sixth lens are negative focal power lenses, third lens, fourth lens, fifth lens, and seventh lens are positive focal power lenses, and second lens is negative or positive focal power lens; focal lengths of first lens, second lens, third lens, fourth lens, fifth lens, sixth lens, seventh lens, and the wide-angle lens are f1, f2, f3, f4, f5, f6, f7 and f respectively, satisfying: 0.3?|f1/f|?2.6, |f2/f|?2, 2.3?|f3/f|?7.2, |f4/f|?0.8, 0.67?|f5/f|?2.94, 0.32?|f6/f|?2.77, and |f7/f|?0.16. The wide-angle lens can satisfy surveillance requirements of high definition and small distortion while ensuring low cost.

Abstract: Provided in the present invention is an iridium-based catalyst, which is characterized in that the chemical structural formula of the iridium-based catalyst is: wherein Ph is a phenyl, R is a methyl or an ethyl, and X is one or more of CH3CO2, NO3, Cl, BF4, PF6 and SbF6. In the present invention, a rhodium-based catalyst in the prior art is replaced with the iridium-based catalyst, such that the reaction cost is reduced, and the yield of reactants is increased.

Abstract: A feedforward control method includes: acquiring, by means of a remote sensing measurement apparatus, inflowing wind information of a plurality of spatial point positions in front of a wind turbine, wherein the plurality of spatial points are distributed in a plurality of different cross sections, and the distances between the plurality of different cross sections and the wind turbine are different; combining the acquired inflowing wind information into a target wind velocity; predicting, on the basis of the combined target wind velocity, incoming flow arrival time required for inflowing wind at a target point to arrive at an impeller plane; and performing feedforward control on the wind turbine according to the predicted incoming flow arrival time.

Abstract: A filter element for coupling adsorption and regeneration of volatile organic compounds and a purification device are provided. The filter element includes a filter element body, a photocatalytic mechanism and adsorption-filtration body(s). The adsorption-filtration body(s) may be of a hollow columnar structure where the photocatalytic mechanism is located. VOCs are quickly adsorbed by the adsorption-filtration body(s), then thermal desorption regeneration is performed on the adsorption-filtration body(s) during a time interval of stopping discharging of the exhaust gas, and a photocatalysis technology is used to cyclically purify the thermally desorbed VOCs, which achieves the synergy of high-density and purification in the two technologies. Furthermore, it takes full advantages of high adsorption, filtration and purification efficiency, low photolysis catalysis costs, and easy operation and maintenance of the on-site regeneration.

Abstract: The present disclosure provides a self-learning collaborative control method for active steering and yaw moment for a motor vehicle, including a first step of constructing fundamental formulas which are stored in a vehicle ECU, and a second step of calculating an active steering angle ?C and a yaw moment Mc on line by the vehicle ECU according to following sub-steps during a driving process of the motor vehicle, and controlling a driving state of the motor vehicle according to ?C and Mc. The second step includes a first sub-step of collecting raw real-time parameter values, a second sub-step of performing calculation by the identifier and the control target reference model, a third sub-step of calculating ?C and Mc. The present disclosure can realize the self-learning collaborative control of active steering and yaw moment without requiring a system control model and correct a driver's steering operation.

Abstract: A liquid crystal display panel includes a first display area, a second display area, and sub-pixels. The sub-pixels are arranged in an array. The sub-pixels comprise a first sub-pixel and a second sub-pixel. The first sub-pixel is disposed in the first display area, the second sub-pixel is disposed in the second display area, and thickness of photoresist of at least a part of the second sub-pixel is smaller than the thickness of the photoresist of the first sub-pixel. A liquid crystal display is also provided.