Abstract: This application provides an image processing method and an electronic device, and relates to the field of image application technologies. In a scenario in which an electronic device starts a plurality of cameras for photographing, details of images or videos captured by the plurality of cameras can be enriched, to improve photographing effect of the electronic device. In the method, an electronic device may determine a target zoom ratio in response to a zoom operation input by a user, and start a second camera; and when the target zoom ratio is greater than or equal to a first preset value and less than or equal to a second preset value, both the first camera and the second camera capture image frames through overlapping exposure, and then fusion is performed on the image frames captured by the first camera and the second camera to generate a preview image.

Abstract: A power supply apparatus includes: a slide rail; a slider, where the slider is disposed on the slide rail, and the slider is configured to fasten a to-be-moved apparatus; a drag chain harness groove, where the drag chain harness groove is fastened to the slide rail; and a drag chain harness, where the drag chain harness is disposed in the drag chain harness groove, the drag chain harness includes a fastened end and a movable end, the fastened end is configured to electrically connect to a power supply, the fastened end is fastened relative to the drag chain harness groove, and the movable end is configured to electrically connect to the to-be-moved apparatus.

Abstract: This application provides a fastening apparatus, a vehicle door, a vehicle, and a device, and relates to the mechanical field. The apparatus includes: a multi-stage telescopic member, where the multi-stage telescopic member includes a plurality of components that are slidably sleeved sequentially, a component located at the top is a top component, and the top component is configured to connect to a mobile apparatus, so that the multi-stage telescopic member is extended or retracted as the mobile apparatus moves; and at least one fastening point, where the at least one fastening point is disposed on the multi-stage telescopic member, the at least one fastening point is configured to fasten a harness, one end of the harness is configured to connect to the mobile apparatus, and the other end of the harness is configured to connect to a power supply apparatus.

Abstract: A quick-locking piston-type floating power supply connector includes a housing assembly, a contact assembly, and a base assembly, wherein the housing assembly is sleeved on an outer wall of one end of the base assembly, one end of the contact assembly is fixed in the base assembly, the other end of the contact assembly extends from the base assembly, the other end of the contact assembly extends outwards to be partially embedded into a cover plate assembly, a floating contact member of a piston-type structure is vertically arranged at the terminal of the other end of the contact assembly, the floating contact member is mounted in the cover plate assembly, a mounting opening of the floating contact member extends outwards to the cover plate assembly, and the floating contact member is used for meeting the electrical assembly requirements of PCBs with different heights.

Abstract: An optical phased array lidar includes: a laser, for emitting a laser signal; an optical beam splitter, for splitting a laser signal into multiple sub-signals, and distributing them to corresponding optical paths; a phase controller connected to the optical beam splitter, for regulating phases of the multiple sub-signals; an optical antenna array based on a one-dimensional grating structure, connected to the phase controller and for uniformly scattering the phase-regulated sub-signals into free space; and a silicon nitride waveguide array, for transmitting the sub-signals and phase-regulated sub-signals to realize the transmission of near-infrared light and visible light. The optical phased array lidar uses a silicon nitride waveguide array for transmission, thereby realizing the transmission of near-infrared light and visible light. In this way, the lidar can work in the visible light band, thereby broadening the working ranging thereof.

Abstract: An on-chip adaptive optical receiver system, an optical chip, and a communication device are disclosed, which are applied to optical communication. The on-chip adaptive optical receiver system includes an antenna array configured for separating received spatial light to obtain a plurality of sub-light spots; an optical phased array configured for performing phase-shifting processing and beam combining processing on the sub-light spots to obtain combined light; and an optical receiving module configured for demultiplexing the combined light to obtain beacon light. The optical receiving module is further configured for detecting intensity information of the beacon light and generating a feedback signal according to the intensity information.

Abstract: This application provides an image processing method and an electronic device, and relates to the field of image application technologies. In a scenario in which an electronic device starts a plurality of cameras for photographing, details of images or videos captured by the plurality of cameras can be enriched, to improve photographing effect of the electronic device. In the method, an electronic device may determine a target zoom ratio in response to a zoom operation input by a user, and start a second camera; and when the target zoom ratio is greater than or equal to a first preset value and less than or equal to a second preset value, both the first camera and the second camera capture image frames through overlapping exposure, and then fusion is performed on the image frames captured by the first camera and the second camera to generate a preview image.

Abstract: Disclosed are recombinant adenoviral compositions and methods for their use in treating disorders associated with epithelial tissues.

Abstract: An on-chip adaptive optical receiver system, an optical chip, and a communication device are disclosed, which are applied to optical communication. The on-chip adaptive optical receiver system includes an antenna array configured for separating received spatial light to obtain a plurality of sub-light spots; an optical phased array configured for performing phase-shifting processing and beam combining processing on the sub-light spots to obtain combined light; and an optical receiving module configured for demultiplexing the combined light to obtain beacon light. The optical receiving module is further configured for detecting intensity information of the beacon light and generating a feedback signal according to the intensity information.

Abstract: A power converter includes a primary H-bridge with switches and an LCL-Transformer section with a first inductor with a first end connected to a first terminal of the primary H-bridge, a capacitor connected between a second end of the first inductor and a second terminal of the primary H-bridge, and a second inductor with a first end connected to the second end of the first inductor. The converter includes a transformer with a primary connected between a second end of the second inductor and the second terminal of the primary H-bridge, a secondary H-bridge with switches with an input connected to a secondary side of the transformer, and an output capacitor connected across output terminals of the secondary H-bridge. The primary H-bridge is fed by a DC constant current source and the output terminals of the secondary H-bridge have a regulated DC output voltage are connected to a load.

Abstract: The present invention provides recombinant adenoviral compositions and methods for their use in treating disorders associated with epithelial tissues.

Abstract: The current disclosure provides recombinant adenoviral vectors and adenoviral genomes that can accommodate or that contain a large transposon payload, for instance a transposon payload of up to 40 kb. The adenoviral vectors and genomes can deliver the large transposon payload into a target genome, for instance for gene therapy.

Abstract: A method for a dynamic inductive wireless power transmission includes providing an AC/DC power converter that receives three-phase power and provides regulated DC output current, connecting a trunk cable to the AC/DC power converter output and to multiple power transmitter modules. The trunk cable connects inputs of the power transmitter modules in series. The power transmitter modules transmit inductive wireless power over an air gap. The method includes providing a system controller that detects a vehicle containing a receiver coil and confirms if the vehicle should receive the inductive wireless power from the multiple power transmitter modules, and includes configuring the system controller to communicate with the AC/DC power converter to maintain the regulated DC output current at a constant value and transmit the inductive wireless power to the vehicle through the multiple power transmitter modules when the vehicle should receive the inductive wireless power.

Abstract: A power converter includes an unfolder connected to a three-phase source and has an output connection with three output terminals. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across converter output terminals. Switches of the converter selectively connect each of the three output terminals across the converter output terminals. A pulse-width modulation controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying at a rate related to a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.

Abstract: An apparatus monitoring system stability of a DC power system includes a switching power converter with a control loop. The converter is connected to a DC bus of the system. A monitoring loop injected into the control loop includes a sensor circuit monitoring voltage and current of the DC bus and a small signal injector producing a periodic signal with variable amplitude and frequency and injects the periodic signal on a reference signal of the control loop. The monitoring loop includes a stability measurement circuit that varies a frequency input to the small signal injector until the periodic signal has a frequency equal to a system minor loop gain crossover frequency of an impedance ratio of a converter closed loop output impedance and an impedance of the DC power system. The monitoring loop includes a measurement output circuit that outputs a DC power system stability margin at the crossover frequency.

Abstract: A power converter includes a primary H-bridge with switches and an LCL-T section with a first inductor with a first end connected to a first terminal of the primary H-bridge, a capacitor connected between a second end of the first inductor and a second terminal of the primary H-bridge, and a second inductor with a first end connected to the second end of the first inductor. The converter includes a transformer with a primary connected between a second end of the second inductor and the second terminal of the primary H-bridge, a secondary H-bridge with switches with an input connected to a secondary side of the transformer, and an output capacitor connected across output terminals of the secondary H-bridge. The primary H-bridge is fed by a DC constant current source and the output terminals of the secondary H-bridge have a regulated DC output voltage are connected to a load.

Abstract: An power converter includes an unfolder connected to a three-phase source and has an output connection with a positive terminal, a negative terminal and a neutral terminal. The unfolder creates two unipolar piece-wise sinusoidal DC voltage waveforms offset by a half of a period. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across output terminals. Switches of the converter selectively connect the positive, negative and neutral inputs across the output terminals. A PWM controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying with a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.

Abstract: A power converter includes an unfolder connected to a three-phase source and has an output connection with three output terminals. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across converter output terminals. Switches of the converter selectively connect each of the three output terminals across the converter output terminals. A pulse-width modulation controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying at a rate related to a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.

Abstract: An power converter includes an unfolder connected to a three-phase source and has an output connection with a positive terminal, a negative terminal and a neutral terminal. The unfolder creates two unipolar piece-wise sinusoidal DC voltage waveforms offset by a half of a period. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across output terminals. Switches of the converter selectively connect the positive, negative and neutral inputs across the output terminals. A PWM controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying with a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.

Abstract: A quick-locking piston-type floating power supply connector includes a housing assembly, a contact assembly, and a base assembly, wherein the housing assembly is sleeved on an outer wall of one end of the base assembly, one end of the contact assembly is fixed in the base assembly, the other end of the contact assembly extends from the base assembly, the other end of the contact assembly extends outwards to be partially embedded into a cover plate assembly, a floating contact member of a piston-type structure is vertically arranged at the terminal of the other end of the contact assembly, the floating contact member is mounted in the cover plate assembly, a mounting opening of the floating contact member extends outwards to the cover plate assembly, and the floating contact member is used for meeting the electrical assembly requirements of PCBs with different heights.