Abstract: A system for generating a 3D heart model based on 2D ultrasound image is provided. The system includes at least one storage device and at least one processor configured to communicate with the at least one storage device. The at least one storage device includes a set of instructions. The at least one processor is configured to communicate with the at least one storage device. When executing the set of instructions, the at least one processor is configured to direct the system to perform operations. The operations includes: obtaining a 2D ultrasound image of a subject; obtaining a target 3D model of an anatomical structure of the subject; obtaining a transformed target 3D model by transforming the target 3D model to align the target 3D model with the 2D ultrasound image; and generating a target 3D image of the subject based on the transformed target 3D model and the 2D ultrasound image.

Abstract: Provided is a method for extracting and recovering high-purity lithium carbonate and iron phosphate from a spent lithium battery material. The method includes the following steps. In a first extraction stage, the iron phosphate feature data is input into an iron phosphate quality analysis model to obtain a first quality index at time T1+a. Whether the extraction device is in an abnormal extraction state at time T1+a is determined. If the abnormal extraction state occurs, an extraction adjustment instruction is generated, and the extraction device is adjusted. If not, a second extraction instruction is generated, and whether the extraction device is in an abnormal state at time T2+b in a second extraction stage is determined. If the extraction device is in the abnormal extraction state, a second extraction adjustment instruction is generated, and the extraction device is adjusted. If not, extraction continues until extraction of lithium carbonate is completed.

Abstract: Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes a base substrate and a plurality of sub-pixels. At least one sub-pixel includes a light-emitting element; a first transistor; a capacitor including a first electrode and a second electrode plate; a second transistor including a second active layer including a third and a fourth electrode area, and a second channel area; and a third transistor including a third active layer, and a third gate electrode connected to a reset line, the third active layer including a fifth electrode area, a sixth electrode area directly connected to an initialization line via a via hole, and a third channel area. An orthographic projection of the initialization line on the base substrate is located between orthographic projections of the reset line and the gate line on the base substrate.

Abstract: An ultrasound probe activating method, an apparatus, an ultrasound imaging device, and a micro controller unit are provided. The method includes: acquiring a real-time acceleration of the ultrasound probe detected by the motion sensor, in a case that the real-time acceleration meets a preset condition, sending a probe activating instruction to the ultrasound host, so that the ultrasound host activates the ultrasound probe. The real-time acceleration includes a real-time linear acceleration and a real-time rotational acceleration. The preset condition includes that the real-time linear acceleration is not matched with an initial linear acceleration of the ultrasound probe, and the real-time rotational acceleration exceeds a first preset threshold.

Abstract: The present disclosure provides an augmented reality optical lens with eye protection function and a preparation method therefor, addressing the issues of heat dissipation and eye protection in head-mounted display devices. The lens uses silicon carbide as a substrate, with specific optical thin-film structures on both sides. When the device generates heat, a heating element is connected to the lens by means of a thermally conductive tape, and the heat is dissipated by utilizing a thermal conductivity of silicon carbide. Heat dissipation is enhanced through heat exchange with air and by regulating a direction of infrared radiation, preventing human eyes from thermal radiation. The present disclosure integrates heat dissipation and eye protection functions, features a simple process and high yield, meets the demands for miniaturization, long battery life, and eye protection in head-mounted devices, enhances user experience, and promotes the development of augmented reality technology devices.

Abstract: Disclosed is a heterogeneous bonded optical waveguide sheet. The heterogeneous bonded optical waveguide sheet comprises an optical waveguide layer composed of a wide bandgap semiconductor material, and a glass substrate composed of high refractive index glass. The optical waveguide layer is disposed on the glass substrate, and a surface of the optical waveguide layer away from the glass substrate is provided with a grating structure. The heterogeneous bonded optical waveguide sheet solves the problems that the refractive index of the current high refractive index glass optical wave sheet reaches a bottleneck (around 2.0) and stray light is caused by secondary coupling-out, and has the advantages of high refractive index, large FOV, full-color display on a single sheet, and reducing rainbow artifacts.

Abstract: An improvement in a nuclear fuel rod is disclosed. The improved fuel rod includes a cladding tube, a plurality of fuel pellets stacked within the cladding tube, and a liquid material filling the gap between the fuel pellets and the cladding tube. The liquid material is selected from those having a thermal conductivity higher than that of helium, a melting point lower than about 400° C., a boiling point higher than 1600° C., and which are capable of wetting both the fuel pellets and the cladding sufficient to form a protective layer over the pellets and to wick into openings that may form in the cladding.

Abstract: The present application provides techniques for displaying information pages. The techniques comprise in response to an operation of starting a client application by a user, displaying a first page comprising a navigation bar and displaying an image of a recommended creator in a preset area of the navigation bar; and in response to detecting a touch operation on the image of the recommended creator, jumping from the first page to a second page and displaying the image of the recommended creator at a top position in a predetermined area of the second page, wherein the predetermined area is configured to display images of a plurality of recommended creators based on information of the user.

Abstract: Use of a solid material in an optical system is provided. The solid material serves as material of a metasurface focusing lens and includes at least one element from group IIIA, group IVA, group VA, and group IIB of a periodic table. By using the solid material, it can solve a problem of a large volume caused by the externally attached refrigeration structure the existing optical components to eliminate thermal drift, a problem of thermal drift associated with the traditional metalens material that is conducive to miniaturization, and a problem of harsh design and processing conditions of the 4H-SiC metalens material. In addition, it offers advantages of balancing miniaturization and athermalization, lowering manufacturing cost, and being suitable for large scale production applications.

Abstract: Disclosed are an imprinting master-template and a manufacturing method therefor, wherein the method includes a master-template and a cushioning structure. A surface of the master-template is provided with a structural area and a non-structural area, the non-structural area being provided on a lateral edge of the structural area, and the structural area being provided with a structural member. The cushioning structure is provided in the non-structural area, when the imprinting master-template is transferred to form the transferring structure for the flexible template, the cushioning structure is used to be imprinted to form a supporting structure that supports the flexible template.

Abstract: The present application provides techniques for displaying information pages. The techniques comprise in response to an operation of starting a client application by a user, displaying a first page comprising a navigation bar and displaying an image of a recommended creator in a preset area of the navigation bar; and in response to detecting a touch operation on the image of the recommended creator, jumping from the first page to a second page and displaying the image of the recommended creator at a top position in a predetermined area of the second page, wherein the predetermined area is configured to display images of a plurality of recommended creators based on information of the user.

Abstract: Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes a base substrate and a plurality of sub-pixels. At least one sub-pixel includes a light-emitting element; a first transistor; a capacitor including a first electrode and a second electrode plate; a second transistor including a second active layer including a third and a fourth electrode area, and a second channel area; and a third transistor including a third active layer, and a third gate electrode connected to a reset line, the third active layer including a fifth electrode area, a sixth electrode area directly connected to an initialization line via a via hole, and a third channel area. An orthographic projection of the initialization line on the base substrate is located between orthographic projections of the reset line and the gate line on the base substrate.

Abstract: A method of forming a water resistant boundary on a fissile material for use in a water cooled nuclear reactor is described. The method comprises mixing a powdered fissile material selected from the group consisting of UN and U3Si2 with an additive selected from oxidation resistant materials having a melting or softening point lower than the sintering temperature of the fissile material, pressing the mixed fissile and additive materials into a pellet, sintering the pellet to a temperature greater than the melting point of the additive. Alternatively, if the melting point of the oxidation resistant particles is greater than the sintering temperature of UN or U3Si2, then the oxidation resistant particles can have a particle size distribution less than that of the UN or U3Si2.

Abstract: Disclosed herein is a method comprising coating a fissile, uranium-containing ceramic material with a water-resistant layer, the layer being non-reactive with the fissile, uranium-containing ceramic material. The coating is applied to a surface of the fissile, uranium-containing ceramic material. Also disclosed is a fuel for use in a nuclear reactor.

Abstract: A flexible display panel. The flexible display panel includes: a flexible substrate; a display element arranged on the flexible substrate; and a packaging layer covering the display element, the packaging layer including an inorganic thin film and an organic thin film that are stacked alternately, in which two protrusion structures that are engaged with each other are arranged between at least two adjacent thin films of the packaging layer.

Abstract: An improvement in a nuclear fuel rod is disclosed. The improved fuel rod includes a cladding tube, a plurality of fuel pellets stacked within the cladding tube, and a liquid material filling the gap between the fuel pellets and the cladding tube. The liquid material is selected from those having a thermal conductivity higher than that of helium, a melting point lower than about 400° C., a boiling point higher than 1600° C., and which are capable of wetting both the fuel pellets and the cladding sufficient to form a protective layer over the pellets and to wick into openings that may form in the cladding.

Abstract: A method of forming a water resistant boundary on a fissile material for use in a water cooled nuclear reactor is described. The method comprises mixing a powdered fissile material selected from the group consisting of UN and U3Si2 with an additive selected from oxidation resistant materials having a melting or softening point lower than the sintering temperature of the fissile material, pressing the mixed fissile and additive materials into a pellet, sintering the pellet to a temperature greater than the melting point of the additive.

Abstract: A method of forming a water resistant boundary on a fissile material for use in a water cooled nuclear reactor is described. The method comprises mixing a powdered fissile material selected from the group consisting of UN and U3Si2 with an additive selected from oxidation resistant materials having a melting or softening point lower than the sintering temperature of the fissile material, pressing the mixed fissile and additive materials into a pellet, sintering the pellet to a temperature greater than the melting point of the additive. Alternatively, if the melting point of the oxidation resistant particles is greater than the sintering temperature of UN or U3Si2, then the oxidation resistant particles can have a particle size distribution less than that of the UN or U3Si2.

Abstract: Disclosed herein is a method comprising coating a fissile, uranium-containing ceramic material with a water-resistant layer, the layer being non-reactive with the fissile, uranium-containing ceramic material. The coating is applied to a surface of the fissile, uranium-containing ceramic material. Also disclosed is a fuel for use in a nuclear reactor.

Abstract: The present disclosure provides a flexible display panel, a method for packaging the same, and a display device. The flexible display panel includes: a flexible substrate; a display element arranged on the flexible substrate; and a packaging layer covering the display element, the packaging layer including an inorganic thin film and an organic thin film that are stacked alternately, in which two protrusion structures that are engaged with each other are arranged between at least two adjacent thin films of the packaging layer.