Abstract: The present application relates to a power failure detection circuit, the circuit comprises: a rectifying circuit for full-wave rectifying an alternating current voltage so as to obtain a first voltage; a switching circuit for converting the first voltage into a periodic voltage pulse; and a judgment circuit for providing an output signal to a fan control circuit for closing a fan when the periodic voltage pulse is not received within a preset time period, and providing the output signal to a micro-control unit for closing an electronic expansion valve. The present application also relates to a control circuit for a variable refrigerant flow VRF system.

Abstract: A cooking appliance includes a body defining a cooking cavity, and a mounting plate including pivotably coupled first and second panels and first and second locking features that are coupled to the first and second panels, respectively. The mounting plate is operable between a folded condition, wherein the second panel is pivoted relative to the first panel such that the mounting plate fits within the cooking cavity and the first locking feature is disengaged from the second locking feature, and an extended condition in which the mounting plate supports the body in a mounted condition of the cooking appliance. The first and second panels are generally parallel and the first locking feature is engaged with the second locking feature to maintain the mounting plate in the extended condition. The first and second locking features become engaged with each other upon movement of the mounting plate to the extended condition.

Abstract: A valve module and a heat pump system are disclosed. The heat pump system comprises: an outdoor unit, a plurality of indoor units, one or more valve modules, a plurality of sensors and a control device. The control device is connected to the plurality of sensors and configured to execute a local cut-off step upon receiving a signal indicating refrigerant leakage in a corresponding indoor unit sent from any sensor, the local cut-off step comprising: closing the indoor unit throttling element of the indoor unit with leakage; and closing the corresponding branch control valve in the valve module connected to the indoor unit with leakage. The valve module and heat pump system according to the embodiments of the invention can effectively prevent continuous refrigerant leakage into the room and have minimal impact on other indoor units of the heat pump system.

Abstract: The present application relates to a battery box, the battery box comprising: a charging and energy storage unit for charging and storing electrical energy using an input voltage supplied to the battery box; a power failure detection unit for detecting a power failure of the input voltage; and a power output switching unit for switching an output based on a detection result of the power failure detection unit, wherein the power output switching unit is configured to output a voltage from the charging and energy storage unit when the power failure detection unit detects a power failure, and is configured not to output the voltage when the power failure detection unit does not detect the power failure. The present application also relates to an air conditioning system and a control method for the air conditioning system.

Abstract: A composting device includes a stirring device, a conveyor belt and a decomposing device. The stirring device, the conveyor belt and the decomposing device are connected successively. A composting method is further provided. An efficient device that can mix livestock and poultry manure, straws and additives fully and uniformly is researched and developed, a conventional method is broken, new innovation is achieved, and the efficiency is improved.

Abstract: The present disclosure relates to display assemblies, display apparatus, and driving methods. One example display assembly includes a display panel and a function module located on a light-emitting surface of the display panel. A function unit in the function module includes at least one phototransistor and one switch transistor. The phototransistor includes a first active layer, a first gate, a first source, and a first drain. A material for making the first active layer includes an organic semiconductor material. The first active layer is located on a side of the first gate away from the display panel. The first drain and the first gate partially overlap to form a first capacitor. The switch transistor includes a second active layer, a second gate, a second source, and a second drain. The function unit includes a transparent electrode located on the first active layer and overlapping the first active layer.

Abstract: The present disclosure relates to display assemblies, display apparatuses, and fingerprint recognition methods. One example display assembly includes a display panel and a fingerprint recognition module located on a light-emitting surface of the display panel. The fingerprint recognition module includes multiple fingerprint recognition units. Each fingerprint recognition unit includes at least one phototransistor and one switch transistor. The phototransistor includes a first active layer, a first gate, a first source, and a first drain. A material for making the first active layer includes an organic semiconductor material. The first drain and the first gate partially overlap to form a first capacitor. The switch transistor includes a second active layer, a second gate, a second source, and a second drain. The fingerprint recognition module includes a first metal layer. The first source, the first drain, the second source, and the second drain are all located at the first metal layer.

Abstract: A method for processing a mortise of a small-size superalloy turbine disk using laser shock peening A laser shock peening (LSP) parameter of a laser shock peening (LSP) robot is designed. A spatial data of a motion trajectory of the LSP robot for a laser shock peening area of mortise teeth of the first mortise is found and recorded using a robot simulation system software to generate a trajectory program of the robot for the first mortise. Then a rotation program of an end of an arm of the LSP robot is written according to an included angle between two adjacent mortises to generate a trajectory program of the robot for all mortises of the turbine disk. Finally, the turbine disk is processed by laser shock peening.

Abstract: A robotic laser-guiding device for laser shock peening includes a laser-guiding arm, a reflecting mirror and a manipulator. The laser-guiding arm includes a laser entry tube, a laser-guiding tube, a laser exit tube and a laser shock head sequentially connected. The laser entry tube is rotatably connected to the laser-guiding tube through a joint. The laser-guiding tube is rotatably connected to the laser exit tube through a joint. The laser entry tube is connected to a laser generator. Each joint is provided with the reflecting mirror. The laser emitted by the laser generator passes through the laser entry tube, one reflecting mirror, the laser-guiding tube, another reflecting mirror, the laser exit tube and the laser shock head to irradiate a part, so as to perform the laser shock peening.

Abstract: An array substrate and a manufacturing method thereof, a display panel and a display device are provided. The array substrate manufacturing method comprises: forming a source electrode and a drain electrode on a gate insulating layer; forming photoresist above the gate insulating layer and the source electrode and the drain electrode; etching the photoresist to form an opening region so as to expose the gate insulating layer between the source electrode and the drain electrode, and a part of the source electrode and a part of the drain electrode; and forming an active layer in the opening region, the active layer covering the exposed gate insulating layer, the part of the source electrode and the part of the drain electrode.

Abstract: This invention provides a thin film transistor and a manufacturing method thereof, an array substrate, and a display apparatus. This thin film transistor comprises an organic semiconductor layer and a source drain electrode layer, and further comprises a metal oxide insulating layer, wherein the metal oxide insulating layer is provided between the organic semiconductor layer and the source drain electrode layer and has a work function higher than that of the source drain electrode layer. In the thin film transistor provided by this invention, the metal oxide insulating layer having a higher work function can generate an interface dipole barrier so as to reduce the difficulty for the carriers in the source drain electrode to enter the organic semiconductor layer and thereby it is possible to decrease the contact resistance between the source drain electrode layer and the semiconductor layer and improve electrical properties of the thin film transistor.

Abstract: This invention provides a thin film transistor and a manufacturing method thereof, an array substrate, and a display apparatus. This thin film transistor comprises an organic semiconductor layer and a source drain electrode layer, and further comprises a metal oxide insulating layer, wherein the metal oxide insulating layer is provided between the organic semiconductor layer and the source drain electrode layer and has a work function higher than that of the source drain electrode layer. In the thin film transistor provided by this invention, the metal oxide insulating layer having a higher work function can generate an interface dipole barrier so as to reduce the difficulty for the carriers in the source drain electrode to enter the organic semiconductor layer and thereby it is possible to decrease the contact resistance between the source drain electrode layer and the semiconductor layer and improve electrical properties of the thin film transistor.

Abstract: An array substrate and a manufacturing method thereof, a display panel and a display device are provided. The array substrate manufacturing method comprises: forming a source electrode and a drain electrode on a gate insulating layer; forming photoresist above the gate insulating layer and the source electrode and the drain electrode; etching the photoresist to form an opening region so as to expose the gate insulating layer between the source electrode and the drain electrode, and a part of the source electrode and a part of the drain electrode; and forming an active layer in the opening region, the active layer covering the exposed gate insulating layer, the part of the source electrode and the part of the drain electrode.

Abstract: A current-driven synchronous rectifying drive circuit designed for a T-type voltage doubler rectifier with an energy feedback circuit including a clamp and energy feedback circuit, a high frequency transformer, a current transducer, an energy storage capacitor, an output capacitor, a first and a second synchronous rectifier, and a first drive circuit connected to the first synchronous rectifier and a second drive circuit connected to the second synchronous rectifier.

Abstract: A current-driven synchronous rectifying drive circuit designed for a T-type voltage doubler rectifier with an energy feedback circuit including a clamp and energy feedback circuit, a high frequency transformer, a current transducer, an energy storage capacitor, an output capacitor, a first and a second synchronous rectifier, and a first drive circuit connected to the first synchronous rectifier and a second drive circuit connected to the second synchronous rectifier.