Abstract: A liquid leakage detection method comprises: acquiring an image to be processed of a battery; recognizing the image to be processed to obtain an adapter piece image and a top cover image; and determining whether there is liquid leakage in the battery according to the adapter piece image and the top cover image.

Abstract: A thin film transistor array substrate includes a base substrate, a light shielding layer, a semiconductor layer, a gate insulating layer, a gate layer, and a source-drain metal layer in contact with the semiconductor layer and in contact with the light shielding layer sequentially disposed on the base substrate, a first insulating layer covering the source-drain metal layer disposed on the base substrate, and a metal protection layer disposed on the first insulating layer. The semiconductor layer, the gate layer, and the source-drain metal layer form a thin film transistor. An end of the metal protection layer is in contact with the source-drain metal layer, and another end of the metal protection layer is in contact with the light shielding layer.

Abstract: A macro-to-micro two-stage camera lens focusing device based on a direct-drive air floatation platform includes: a two-stage motion device with macro-motion and micro-motion focusing systems. The focusing device includes: a z-direction macro-motion system, a z-direction micro-motion focusing system, and a y-direction micro-motion focusing system. The macro-motion system includes flat-plate linear motors, a tubular linear motor, a tubular elastic balancing device, and an aerostatic air flotation platform; and the micro-motion focusing system includes a micro-motion platform base, piezoceramic actuators, micro-motion flexure hinges, a micro-motion platform, and an industrial camera lens.

Abstract: Disclosed is an electronic device. The electronic device includes an interface, a voltage detection circuit, and a processor. The interface is configured to connect a power supply device, and the interface includes a first pin and a second pin. The first pin is configured to transmit a data signal. The second pin is configured to transmit a charging voltage signal. The voltage detection circuit is respectively connected to the first pin and the processor. The voltage detection circuit is configured to: detect a voltage of the first pin. The processor is configured to: determine a second voltage value according to the voltage of the first pin when the power supply device transmits a charging voltage signal with a first voltage value to the second pin and the power supply devices supports fast charging; and send the second voltage value to the power supply device.

Abstract: A frame-type bilateral reverse permanent magnet direct current linear motor is provided, including a support frame, an iron yoke assembly with a first iron yoke, a second iron yoke and a middle iron yoke, a permanent magnet group, a coil winding and a pole piece assembly. Two groups of intermediate transition permanent magnet assemblies are disposed between the first iron yoke and the middle iron yoke and between the second iron yoke and the middle iron yoke. The intermediate transition permanent magnet assemblies includes transition permanent magnets and corresponding transition connection iron yokes; and magnetic pole orientations of the transition permanent magnets of the two groups of intermediate transition permanent magnet assemblies are reverse. The linear motor realizes efficient direct-current linear control, and has a high speed, a precise controllability, a high thrust density and small thrust fluctuation, and easiness in assembling.

Abstract: The present invention relates to three dimensional photovoltaic structures and a power generation apparatus comprising same. The photovoltaic structure comprises a light transmitting solid optical core having a longitudinal axis, a top end, a bottom end and one or more side walls, wherein the top end has an exposed outer surface to receive light. A photovoltaic layer surrounds at least a portion of one or more of the side walls of the optical core and an optical cladding layer surrounds the photovoltaic layer.

Abstract: A power supply system is applied to the electronic device, where the electronic device includes at least two cell groups, an external interface, and a load; the power supply system includes a toggle switch circuit and a buck switch circuit; two poles of the cell group are respectively coupled to an input end of the toggle switch circuit; a first output end of the toggle switch circuit is coupled to an input end of the buck switch circuit, a second output end of the toggle switch circuit is coupled to an output end of the buck switch circuit, and the input end of the buck switch circuit is coupled to an external interface; and the output end of the buck switch circuit is further coupled to the load, and the external interface is configured to connect a charger.

Abstract: The present invention provides a photovoltaic module for paving surfaces that supports pedestrians and vehicles, comprising one or more photovoltaic cells interconnected in serial or in parallel and placed in the same plane including: an upper protective layer that is non-opaque and is seamlessly adhered to both the photovoltaic cells and another protective mounting layer that is and is seamlessly adhered from the bottom and sides. A further binding layer underneath the second protective layer, an anti-skid layer seamlessly adhered at the very top to the entire structure with irregular textures of various granularities, and a baseplate seamlessly adhered from the very bottom to the entire structure allow a glutinous material to be applied when paving a road surface with the disclosed modules.

Abstract: A manually detachable locking mechanism for connecting parts of an unmanned aerial vehicle (UAV) having a first engaging means associated with a first part of the UAV; a second engaging means associated with a second part of the UAV, the first engaging means and the second engaging means being manually and releasably engageable to connect the first and second parts; a resilient means operatively arranged between the first engaging means and the second engaging means. The first engaging means is movable relative to the second engaging means along a direction of an axis from a first position to a second position and then from the second position to a third position angularly spaced from the second position about the axis to thereby lock the first engaging means with the second engaging means under a restoring force exerted by the resilient means. An unmanned vehicle having a manually detachable locking mechanism is described.

Abstract: The present invention relates to three dimensional photovoltaic structures and a power generation apparatus comprising same. The photovoltaic structure comprises a light transmitting solid optical core having a longitudinal axis, a top end, a bottom end and one or more side walls, wherein the top end has an exposed outer surface to receive light. a photovoltaic layer surrounds at least a portion of one or more of the side walls of the optical core and an optical cladding layer surrounds the photovoltaic layer.

Abstract: The present techniques provide methods and systems for recording micro-holograms on a holographic disk using a plurality of counter-propagating light beams in parallel. The parallel counter-propagating light beams overlap to form interference patterns on a data layer and over multiple data tracks in the holographic disk. Rotating the disk enables the parallel recording of micro-holograms over multiple data tracks, thus reducing recording time. Further, the illumination pattern may include illuminated spots and non-illuminated regions, such that each illumination spot may cover a relatively small fraction of the data layer plane, possibly controlling the depth spread of the recorded micro-hologram. In some embodiments, data in the parallel signal beams may be retrieved from a master holographic disk or may be modulated into the parallel signal beams.

Abstract: A method for enhancing contrast in fluorescence imaging is provided. The method comprises providing a patterned illumination source for illuminating one or more regions corresponding to a scan step, scanning at least a portion of a surface of a subject using a plurality of scan steps, acquiring image frames corresponding to two or more scan steps, deducting a background fluorescence from the image frames corresponding to the two or more scan steps to form one or more processed image frames, and reconstructing an image using one or more of the processed image frames.

Abstract: This invention relates to a type of solar energy photo-voltaic power generation equipment that can automatically track the sun. This device includes a pedestal installed on a mounting platform. On the pedestal, a main support frame is provided. On the support frame, a solar cell panel platform is provided. On this platform, a solar energy photo-voltaic assembly is installed. The pedestal is connected to the mounting platform and can rotate relative to the mounting platform. On the pedestal, a circumferentially driven planet reduction gear is installed. On the main support frame, a platform elevation angle adjustment lifter is installed. The end of the telescopic link on the lifter is hinged to the solar cell panel platform. The circumferentially driven planet reduction gear and platform elevation angle adjustment lifter are connected to an electric control device.

Abstract: Techniques are provided for controlling the reading of optical data from a master disk in a holographic replication system. Imperfections in the master disk or movement of the disk during a recording process may cause source beams to deviate from target data tracks. In some embodiments, a detector system is used to determine the focus and alignment of the source beams on the master disk, as well as the tilt and rotation of the disk with respect to the holographic replication system. The detector system may detect deviations in the intensity distribution of the reflections of the source beams and generate an error signal corresponding to focusing, tracking, tilt, and/or rotational errors. Servo-mechanical devices may actuate optical components to compensate for such errors.

Abstract: The present techniques provide techniques for outputting counter-propagating parallel light waves to pre-record a holographic data disk. The parallel light waves are transmitted through a holographic system via a fiber optic bundle including a plurality of polarization-maintaining (PM) optical fibers. Each of the PM optical fibers in the fiber optic bundle may have one or more of a different wavelength, a different coherence length, and a different polarization orientation to reduce crosstalk in the disk. Furthermore, the fiber optic bundle array is rotated to produce interference spots indicative of micro-holograms according to the data track pitch of the holographic disk over which the fiber optic bundle is outputting the light waves.

Abstract: A method for enhancing contrast in fluorescence imaging is provided. The method comprises providing a patterned illumination source for illuminating one or more regions corresponding to a scan step, scanning at least a portion of a surface of a subject using a plurality of scan steps, acquiring image frames corresponding to two or more scan steps, deducting a background fluorescence from the image frames corresponding to the two or more scan steps to form one or more processed image frames, and reconstructing an image using one or more of the processed image frames.

Abstract: Techniques are provided for controlling the reading of optical data from a master disk in a holographic replication system. Imperfections in the master disk or movement of the disk during a recording process may cause source beams to deviate from target data tracks. In some embodiments, a detector system is used to determine the focus and alignment of the source beams on the master disk, as well as the tilt and rotation of the disk with respect to the holographic replication system. The detector system may detect deviations in the intensity distribution of the reflections of the source beams and generate an error signal corresponding to focusing, tracking, tilt, and/or rotational errors. Servo-mechanical devices may actuate optical components to compensate for such errors.

Abstract: Disclosed are systems for intraoperative nerve imaging using compact high collection power imaging devices for fluorescence and white light imaging of myelin basic protein (MBP) nerve imaging agents during open and minimally invasive surgery.