Abstract: This application describes examples of a grid-tied inverter apparatus and a grid-tied control method. In one example, the grid-tied inverter apparatus includes an inverter circuit, a controller, and a filter circuit. The controller is configured to adjust switching frequencies of a plurality of power switching transistors based on an output current value of the inverter apparatus, to adjust a resonance frequency of the filter circuit through different resonant branches, so that the resonance frequency meets a grid-tied requirement.

Abstract: The disclosure herein describes training an encoder network to inpaint images with masked portions. A primary encoding process is used to encode a visible portion of a masked input image into encoded token data. The encoded token data is then decoded into both pixel regression output and feature prediction output, wherein both outputs include inpainted image data associated with the masked portion of the masked input image. A pixel regression loss is determined using the pixel regression output and pixel data of an unmasked version of the masked input image. A feature prediction loss is determined using the feature prediction output and ground truth encoding output of the unmasked version of the masked input image. The primary encoding process is then trained using the pixel regression loss and the feature prediction loss, whereby the primary encoding process is trained to encode structural features of input images into encoded token data.

Abstract: Described herein are techniques that may be used to automate testing of services on mobile devices using visual analysis. In some embodiments, a machine learning model is trained using interaction data received from a number of mobile devices by correlating user selections with visual elements (e.g., icons). During execution of a testing routine on a mobile device, screenshots are obtained of a screen of the mobile device and provided to the machine learning model. An action is generated based on the provided screenshot that simulates a user action (e.g., a user touch on the screen of the mobile device) at a location of an icon or other visual element associated with the testing routine. These steps are repeated until an end-state of the testing routine is detected.

Abstract: Electrochemical conversion of nitrate to ammonia is an approach to alleviate nitrate pollution in water and simultaneously generate green NH3 fuels. The practical application of this approach is challenging due to the lack of efficient electrocatalysts. The present disclosure relates generally to an electrocatalyst including a plurality of CuWO4 hollow nanospheres, which include asymmetric oxygen vacancies and adjacent Mo clusters, and methods of making and using the same. The electrocatalyst of the present disclosure is designed for efficient ammonia electrosynthesis.

Abstract: Embodiments of the invention include a computer-implemented method that includes accessing, using a processor, a loader library; using the processor to generate a mock library comprising a mock version of the loader library; using the processor to containerize the loader library; and using the processor to unload the loader library.

Abstract: A magnetic induction switch has a base; a mounting cavity is arranged in the base; an induction circuit board is arranged in the mounting cavity and a Hall induction element is provided; a rotating cover is rotated on the base and is provided with at least two positioning points on the rotating path; the magnet is provided in the rotating cover, and the position of the magnet relative to the Hall induction element changes during the rotation of the rotating cover so that the induction circuit board generates control signals; the magnetic induction switch of the invention is waterproof, avoids hidden trouble existing in the ignition of the mechanical switch, and has the advantages of simple structure and convenient manufacture.

Abstract: A power conversion circuit includes a switching network, a control circuit, a filter circuit, and a direct current side circuit; and the filter circuit includes a first power inductor, a common mode choke, a first differential mode filter capacitor, a first common mode filter capacitor, and a second common mode filter capacitor. The first power inductor includes a first winding and a second winding, and the common mode choke includes a third winding and a fourth winding; a first end of the first winding and a first end of the second winding are separately connected to the switching network, a second end of the first winding and a second end of the second winding are respectively connected to a first end of the third winding and a first end of the fourth winding.

Abstract: The present disclosure discloses a Bluetooth communication method having audio source scanning mechanism and used in a Bluetooth audio play playback apparatus that includes steps outlined below. A one-to-one connection is established with a Bluetooth communication assistant apparatus. An audio source scanning is performed to generate audio source information according to a scanned Bluetooth audio source apparatus. The audio source information is transmitted to the Bluetooth communication assistant apparatus. A selection command from the Bluetooth communication assistant apparatus is received to select the scanned Bluetooth audio source apparatus as a selected Bluetooth audio source apparatus. Audio data from the selected Bluetooth audio source apparatus is received and playback.

Abstract: Disclosed are a signal processing method and an abnormal sound detection system. First, a neural network model is trained, including: (a) randomly selecting a plurality of sample signals from a training database to obtain a combined signal, wherein the training database includes the first sample set belonging to the first classification label and the second sample set belonging to the second classification label, and the number of selected sample signals conforms to the preset number; repeating the said step to obtain a plurality of combined signals and using the combined signals to train the neural network model. Then, a sound signal received from a sound receiving apparatus is inputted to the trained neural network model to output a probability value, and a corresponding notification signal is outputted based on the probability value.

Abstract: Provided in the present disclosure are a paging method and apparatus, and a storage medium. The paging method includes: determining that entry into a target sleep state is required, and transmitting an assisted paging request to at least one second terminal device; and determining that a target terminal device of the at least one second terminal device accepts the assisted paging request, and entering the target sleep state.

Abstract: A bonding structure and a power device. The bonding structure includes a first power unit and at least two bonding wires. At least one end of the bonding wire is connected to the first power unit through bonding. Projections that are of lead paths of the at least two bonding wires and that are on a preset plane have at least one intersection point. Spatial cross wire bonding is performed on the bonding wires, so that lead paths of the bonding wires form an angle with each other, thereby weakening electromagnetic force between the bonding wires. Therefore, fatigue due to fluctuating stress of the bonding wires can be alleviated, service lives of the bonding wires can be prolonged, and bonding effect can be ensured to a maximum extent.

Abstract: A method for reducing frequency interference, and a communication satellite system. The method includes configuring the communication satellite system, determining a first range of areas in which a spatial isolation angle between the LEO satellite and the GEO satellite does not satisfy a minimum spatial isolation angle within service areas of the movable spot beams, enabling the movable spot beams to not enter the areas, and when the movable spot beams of the transmitting and receiving user antennas of multiple adjacent LEO satellites provide services to a same area, calculating a spatial isolation angles between the movable spot beams of the transmitting and receiving user antennas of any two adjacent LEO satellites, and in response to the spatial isolation angle not satisfying the minimum spatial isolation angle, assigning different sub-frequencies to the movable spot beams that do not satisfy the minimum spatial isolation angle.

Abstract: An encoding method for channel state information (CSI), performed by a user equipment (UE), includes: encoding, based on a first target CSI compression encoder, a target CSI matrix in a delay domain and an angle domain, to generate a compressed encoded value, in which the first target CSI compression encoder includes N composite convolution layers and one fully-connected layer, each composite convolution layer includes a delay-domain convolution step and an angle-domain convolution step, and the delay-domain convolution step of the first composite convolution layer in the N composite convolution layers is smaller than the angle-domain convolution step of the first composite convolution layer in the N composite convolution layers, where N is a positive integer.

Abstract: A method for determining a signal detection network includes: determining sample communication parameters in communication of a sample transmitting end and a sample receiving end via a sample intelligent reflecting surface (IRS); and training an initial neural network based on a training sample set composed of the sample communication parameters to obtain the signal detection network. An input of the initial neural network is the sample communication parameters, and an output of the initial neural network is an estimated value for a transmitted signal of the sample transmitting end.

Abstract: This application describes examples of a grid-tied inverter apparatus and a grid-tied control method. In one example, the grid-tied inverter apparatus includes an inverter circuit, a controller, and a filter circuit. The controller is configured to adjust switching frequencies of a plurality of power switching transistors based on an output current value of the inverter apparatus, to adjust a resonance frequency of the filter circuit through different resonant branches, so that the resonance frequency meets a grid-tied requirement.

Abstract: A method for automatically activating a video conference meeting device, wherein the video conference meeting device includes a power supply, a main processor and a plurality of peripheral components, and a radar detector connects to the video conference meeting device, the method comprises (a) the radar detector detecting with a radar detection coverage when the video conference device is in a standby state; (b) when the radar detector detects an object appearing in the radar detection coverage, obtain a position of the object detected in the radar detection coverage; (c) the radar detector obtaining boundary information of an effective zone and determining whether the position of the detected object is within the effective zone; (d) when the radar detector determines that the position of the detected object is within the effective zone, activating the video conference meeting device which loads an operation program.

Abstract: Aspects of the present disclosure relate to a power trigger mechanism for a power tool, comprising a first locking device and a second locking device, wherein the first locking device and the second locking device can be actuated independently of each other. Further aspects of the present disclosure relate to a power tool comprising said power trigger, and a method of operating said power trigger. The present invention provides a power trigger with intuitive operation, improved safety and improved control and stability of the power tool.

Abstract: Various embodiments set forth high-resolution liquid crystal displays and components thereof. In some embodiments, light emitted by a high-resolution green color liquid crystal display is combined, via a combiner, with light emitted by at least one lower-resolution red and blue color liquid crystal display. The red and blue color display(s) may include a single display or two displays positioned on opposing sides of the combiner. The combiner may be a dichroic or polarization-based combiner. Combined light from the green color display and the red and blue color display(s) is passed through collimating optics, such as a pancake lens or a Fresnel lens, toward a viewer's eye.

Abstract: A network path determining method includes: receiving a data transmission request, the data transmission request includes a destination address and delay information, and the delay information indicates a delay duration allowed by the data transmission request; and selecting, based on the destination address and the delay information, a data transmission path for reaching the destination address and with a time delay less than or equal to the delay duration.

Abstract: The disclosed devices and systems may include transparent antennas and touch displays that may be included in wearable devices. An example wearable device may include a display module including a display stack, the display stack including a display cover layer, an antenna layer, and a display layer, wherein the antenna layer (1) is positioned between the display cover layer and the display layer, and (2) includes at least one antenna element. Various other systems and devices are disclosed.