Abstract: The invention discloses a method and system for preparing multi-compound ester insulating oil. The method utilizes vacuum esterification, involving esterification of pentaerythritol and fatty acid, followed by vacuum distillation, adsorption, washing, suction filtration, and vacuum drying to produce pure synthetic ester insulating oil. By detecting saturated fatty acid content, polarization strength, and closed-cup flash point, the most suitable natural ester insulating oil is selected. Ten different proportions of mixed ester insulating oils are obtained through blending and tested for mass and heat changes in nitrogen and air environments. Dielectric performance parameters at varying temperatures are analyzed to calculate activation energy. The resulting mixed ester insulating oil, NSE3 (85 vol % KA+15 vol % FR3), exhibits a high flash point, low pour point, and high AC breakdown voltage, offering excellent comprehensive performance.

Abstract: Methods and systems for dynamic network keep-alive are described. In one embodiment, the method comprises establishing a link with an access point, determining a client station time interval and iteratively adjusting the duration of the client station time interval to approximate the access point time interval until the client station time interval is a close approximation of the access point time interval, thereby performing the keep-alive process at an efficient manner.

Abstract: Embodiments of this application provide a communication method and apparatus. The method includes: A first device (for example, a terminal device or a network device) determines that a first data frame is lost. The first device discards a first data packet received from an upper layer, where the first data packet is a part of or all data packets in a second data frame, the second data frame is located after the first data frame, and the second data frame is associated with the first data frame. According to the method disclosed in this application, a data frame transmission failure is identified, and proactive discarding of a data packet in a subsequent data frame associated with the lost data frame is triggered, to avoid a waste of air interface resources and transmission resources, reduce execution of unnecessary decoding operations, and reduce power consumption of the device while improving resource utilization.

Abstract: The present invention relates to the technical field of display, and relates to a display device, a touch display panel, and a touch panel and a manufacturing method therefor. The touch panel of the present invention may comprise a substrate, a touch layer, and a light shielding layer, the touch layer being provided on one side of the substrate. The light shielding layer and the touch layer are provided on the same side of the substrate; the light shielding layer is annular and surrounds the touch layer.

Abstract: The present invention provides a scalable synthesis of enantiomerically pure brivaracetam, and related derivatives.

Abstract: Handshake controller and handshake control method for one or more charging protocols. For example, a handshake controller for one or more charging protocols includes: a port detection unit connected to a plurality of USB ports and configured to generate a detection signal; a port selection unit configured to receive the detection signal and connected to the plurality of USB ports; an interface unit connected to the port selection unit; and a digital handshake unit connected to the interface unit; wherein the port detection unit is further configured to: determine whether a single USB port of the plurality of USB ports is connected to a load device.

Abstract: Disclosed are a laser assisted cold spray repair device and process method for aviation-grade aluminum alloy structural parts. In the present disclosure, a laser device, a high-pressure gas source, a powder feeder, a water cooling system, a reflector, an integrated spray gun, a mobile platform, an air pipe, a powder-gas mixed channel, a lower-pressure powder-gas powder feeding port, an air pressure regulating valve, a high-pressure airflow heater and a powder pipe are included. The powder spray gun and a heating laser source are connected coaxially, and a processing zone of the mobile platform is provided with a specimen to be processed. In the present disclosure, fatigue properties of repaired aviation-grade aluminum alloy specimens are restored to an original state before damage and satisfy service requirements.

Abstract: The present disclosure relates to a method, apparatus, electronic device and storage medium for interaction. The method includes: presenting a target interface including an information flow area and an information input area; in a case that input information to be released is detected in the information input area and the input information satisfies a preset condition, presenting query keyword prompt information; and in response to a triggering operation on the query keyword prompt information, presenting query result content. This is substantially meant that the input information is automatically identified, during the editing of the input information by a user, the input information is converted into the query keyword prompt information for presentation, and in a case that the query keyword prompt information is triggered by the user, the query result content is directly presented, so as to assist the user in quickly obtaining the query result thereof.

Abstract: In one embodiment, a method for achieving zero packet loss in wireless roaming is implemented by a processor of a wireless client device in a system. The wireless client device establishes a first data plane in association with a first radio connected to a first access point and a second data plane in association with a second radio. The first data plane is different from and operates concurrently with the second data plane. The wireless client device determines a second access point by scanning a plurality of operating channels using the second radio. The wireless client device synchronizes the second data plane with a network controller to connect the second radio with the second data plane to the second access point. The wireless client device switches traffic of the first data plane connected to the first access point to the second data plane connected to the second access point.

Abstract: The disclosure provides a security analysis method and system based on protocol state, which relates to the technical field of protocol security protection. The method includes the following: a node traversal table is built, the node traversal table is scanned and analyzed according to the protocol trigger sequence rule, a first security evaluation factor of a protocol stack is determined, and a second security evaluation factor of each protocol is determined based on protocol normal application rule, and the trustworthiness degree of the second security factor is determined based on the first security factor, and the second security factor is revised based on the trustworthiness degree, and the security state of the protocol is determined according to the revised second security factor, thus the analysis of the protocol state is realized, and the security of the protocol can be accurately determined.

Abstract: A differential-pressure sliding sleeve has an outer cylinder with a flow guiding hole being provided in a wall of the outer cylinder, an inner cylinder arranged in an inner cavity of the outer cylinder, an upper joint extending into the outer cylinder and fixedly connected to an upper end of the outer cylinder, a lower joint extending into the outer cylinder and fixedly connected to a lower end of the outer cylinder, and a dissolvable carrier ring arranged between the lower joint and the inner cylinder. An area of the axial upper end surface of the inner cylinder is greater than that of an axial lower end surface thereof, so that the working fluid generates a pressure difference to provide downward pressure for the inner cylinder, which moves downward under the pressure after the carrier ring is dissolved to open the flow guiding hole.

Abstract: Provided are a data association query method and apparatus, a device, and a storage medium. The data association query method includes the following: parsing a data query statement to obtain association query information, where the association query information includes query key information of a first association table; determining a query policy according to the query key information, where the query policy includes a partition filtering policy, a scan-while-filter policy and a scan-before-filter policy; and querying data in a second association table based on the query policy.

Abstract: A method with object detection includes obtaining a first point cloud feature based on point cloud data of an image and determining at least one object in the image based on the first point cloud feature.

Abstract: A display module and an electronic device are provided. The display module includes a display film layer, a heat dissipation film layer, a support plate and an elastic thermal conductive sheet. The display film layer and the heat dissipation film layer include a flat area and bending areas, and an angle exists between a tangent of a curved surface formed by the bending areas and a plane where the flat area is located. The display film layer is stacked on a first surface of the heat dissipation film layer. The support plate is connected to a position where the flat area of a second surface of the heat dissipation film layer is located, and the elastic thermal conductive sheet is connected to a position where the bending areas of the second surface of the heat dissipation film layer are located. The first surface and the second surface are opposite surfaces.

Abstract: Voltage converter and method for converting an input voltage to an output voltage. For example, a voltage converter for converting an input voltage to an output voltage includes: a coil; multiple switches including one or more switches connected to the coil; a modulation signal generator configured to: receive the output voltage and one or more detection signals indicating a magnitude of a coil current flowing through the coil; and generate a first signal and a second signal based at least in part upon the output voltage and the one or more detection signals; and an operation mode controller configured to: receive the input voltage, the output voltage, the first signal, and the second signal; and generate one or more mode signals based at least in part upon the input voltage, the output voltage, the first signal, and the second signal.

Abstract: A touch-control panel and a touch-control displaying device, which relates to the technical field of touch control. In the present application, by providing the first carrier element, the first electrically conductive layer and the first shadow eliminating layer on the substrate, by blocking the first electrically conductive layer by using the first shadow eliminating layer, the reflectivity of the first electrically conductive layer is reduced, which reduces the pattern of the first electrically conductive layer being observed under intensive-light reflection.

Abstract: A scenario setting method and an electronic device are provided, and relate to the field of terminal technologies. In an electronic device control process, a real-time scenario is automatically generated in response to a user operation, thereby reducing a scenario setting difficulty and improving user experience. The method includes: A control device displays a first interface including a trigger area, displays, in the trigger area, a first identifier of a first device that executes a first intention, and displays, outside the trigger area, a second identifier of a second device that does not execute a second intention. The control device generates, in response to a user operation, a scenario corresponding to the first interface, where the scenario includes indicating the first device to execute the first intention, and indicating the second device to cancel execution of the second intention.

Abstract: Embodiments of the present disclosure relate to a method for generating a machine learning model. The method includes extracting multiple parameters from a target machine learning model, where the multiple parameters include a learning rate, state information, a loss value, a gradient, and a weight, and the target machine learning model is configured to execute tasks related to at least one of images, videos, voice, and text. The method further includes predicting a first learning rate by a first machine learning model based on the multiple parameters; predicting a second learning rate by a second machine learning model based on the multiple parameters; choosing, based on the first learning rate and the second learning rate, a learning rate having a minimum loss value in the first learning rate and the second learning rate; and adjusting the target machine learning model based on the learning rate having the minimum loss value.

Abstract: A smart outlet is provided to allow charging of a vehicle using a standard 240 Volt socket provided with features that limit use to authorized users and collect and transmit billing information associated with a charging session for an authorized user following OCPP standard.

Abstract: The present disclosure provides a gate driving circuit, a display panel, a driving method and a display device. The gate driving circuit includes an input module, a pull-up node, an output module, a first pull-down node, a first pull-down node control module and a first suppression module. The first pull-down node control module controls to connect the first connection node and the first pull-down node under the control of the pull-up node, and inputs the signal provided by the second signal terminal to the first pull-down node under the control of the potential of the first pull-down node; the first suppression module inputs the signal provided by the first level signal terminal to the first connection node under the control of the pull-up node.