Abstract: The present application discloses a display panel, a display device, and a preparation method for a display panel. The display panel includes a substrate, a pixel define layer, and a light-emitting device layer. The pixel define layer includes a pixel defining portion and a plurality of pixel openings. The light-emitting device layer includes a plurality of first carrier structures, a plurality of light-emitting structures, and a second carrier layer. The light-emitting structures are located on one side of corresponding first carrier structures, the side facing away from the substrate. The second carrier layer continuously covers the pixel defining portion and the plurality of light-emitting structures. The second carrier layer will not be eroded by water and oxygen in the atmosphere, thereby ensuring good transmission performance of the second carrier layer, and improving the usage performance of the display panel.

Abstract: The cooling system comprises a first cooling circuit for cooling a first heating component, a second cooling circuit for cooling a second heating component, a third cooling circuit for cooling a third heating component, a fourth cooling circuit for cooling a fourth heating component, a pump station unit, and a heat dissipation unit; the pump station unit comprises a pump group, a water separator, and a water collector, a water supply main is between the pump group and the water separator, and a water return main is between the pump group and the water collector; the pump group provides a cooling medium for the first, second, third and fourth cooling circuits via the water separator; the first cooling circuit is directly communicated with the water separator and the water collector; and the second, third and fourth cooling circuits are communicated with the water collector via the heat dissipation unit respectively.

Abstract: The present invention relates to a seepage erosion test system designed to evaluate soil erosion under controlled conditions. The system includes an acrylic rectangular pipe featuring a circular opening at its lower end. Attached to this is a soil sample pushing sub-device that encompasses a cylindrical sample tube, a piston, and four pore pressure gauges. The piston, which moves vertically within the tube. Additionally, the system incorporates a graduated cylinder pressurizing sub-device consisting of a graduated cylinder for water, a push plate, and a second pushing device for hydraulic pressurization. Water flow is regulated through a hose connected at one end to the piston and equipped with a valve for control. An air release valve and an air pressure sensor are also included for monitoring pressurization. The setup is completed with a three-way valve connected to the pipe, facilitating precise control of water flow and pressure during testing.

Abstract: The present application provides a display panel, a display apparatus, and a method for manufacturing a display panel. The display panel includes: a base plate; a pixel defining layer including a pixel defining portion and a plurality of pixel openings enclosed and formed by the pixel defining portion; a first mask portion including one or more first openings arranged through the first mask portion along a thickness direction of the display panel; and a first electrode located at a side of the pixel defining layer away from the base plate and a side of the first mask portion away from the base plate, the first electrode including at least one second opening arranged through the first electrode along the thickness direction, and an orthographic projection of the second opening on the base plate at least partially overlapping an orthographic projection of the first opening on the base plate.

Abstract: An all-optical neural network that utilizes light beams and optical components to implement layers of the neural network is disclosed herein. The all-optical neural network includes an input layer, zero or more hidden layers, and an output layer. Each layer of the neural network is configured to simulate linear and nonlinear operations of a conventional artificial neural network neuron on an optical signal. In an embodiment, the optical linear operation is performed by a spatial light modulator and an optical lens. The optical lens performs a Fourier transformation on the set of light beams and sums light beams with similar propagation orientations. The optical nonlinear operation is implemented utilizing a nonlinear optical medium having an electromagnetically induced transparency characteristic whose transmission of a probe beam of light is controlled by the intermediate output of a coupling beam of light from the optical linear operation.

Abstract: Various embodiments include a tilt actuator and a spring suspension arrangement for use in a camera having a folded optics arrangement. In some embodiments, the folded optics arrangement may include a light path-folding element that is coupled with a carrier and that is tilted using the tilt actuator. The spring suspension arrangement may suspend the carrier and the light path-folding element from a base structure, and may allow motion of the light path-folding element enabled by the tilt actuator. The spring suspension arrangement may include one or more springs attached to the carrier and to the base structure. In some embodiments, the spring suspension arrangement may further include one or more suspension wires attached to the spring(s) and to a stationary structure of the camera.

Abstract: A material structure for silicon-based gallium nitride microwave and millimeter-wave devices and a manufacturing method thereof are provided. The material structure includes: a silicon substrate; a dielectric layer of high thermal conductivity, disposed on an upper surface of the silicon substrate, and an uneven first patterned interface being formed between the dielectric layer and the silicon substrate; a buffer layer, disposed on an upper surface of the dielectric layer, and an uneven second patterned interface being formed between the buffer layer and the dielectric layer; a channel layer, disposed on an upper surface of the buffer layer; and a composite barrier layer, disposed on an upper surface of the channel layer. In the material structure, the uneven patterned interfaces increase contact areas of the interfaces, a thermal boundary resistance and a thermal resistance of device are reduced, and a heat dissipation performance of device is improved.

Abstract: A multifunctional charging circuit includes: a first inverter circuit connected to a primary side winding of an isolation transformer and configured to convert a received first direct current into a first alternating current, then outputting it to the primary side winding; a first wireless charging coil, with one end connected to a corresponding end of a secondary side winding of the isolation transformer, and designed to receive electrical power wirelessly transmitted by a second wireless charging coil; a first resonance compensation circuit connected to the other end of the first wireless charging coil and the corresponding end of the secondary side winding, and configured to generate a resonance based on the electrical power received by the first wireless charging coil and/or the first alternating current received by the secondary side winding, subsequently outputting a first charging current to the rectifier circuit.

Abstract: Various embodiments include a tilt actuator and a spring suspension arrangement for use in a camera having a folded optics arrangement. In some embodiments, the folded optics arrangement may include a light path-folding element that is coupled with a carrier and that is tilted using the tilt actuator. The spring suspension arrangement may suspend the carrier and the light path-folding element from a base structure, and may allow motion of the light path-folding element enabled by the tilt actuator. The spring suspension arrangement may include one or more springs attached to the carrier and to the base structure. In some embodiments, the spring suspension arrangement may further include one or more suspension wires attached to the spring(s) and to a stationary structure of the camera.

Abstract: A method for preparing an AlN based template having a Si substrate and a method for preparing a GaN based epitaxial structure having a Si substrate are provided. The method for preparing the AlN based template having the Si substrate, which includes: providing the Si substrate; growing an AlN nucleation layer on the Si substrate; and introducing an ion passing through the AlN nucleation layer and into the Si substrate. After the AlN nucleation layer is prepared on the Si substrate, the ions are introduced into the Si substrate and the AlN nucleation layer through the AlN nucleation layer. In this way, types of the introduced ions can be expanded. In addition, a carrier concentration at an interface between the Si substrate and the AlN nucleation layer and a carrier concentration in the AlN nucleation layer can also be reduced.