Abstract: Provided is a rhomboid structured triboelectric nanogenerator based on a built-in U-shaped support. The device includes a diamond-shaped bracket and two U-shaped supports. The U-shaped supports is connected with the diamond-shaped bracket through four connecting rods, and the supporting plates of U-shaped supports are sequentially adhered with metal conductor layer and a dielectric material layer, which forms the power generation unit. When the diamond-shaped bracket is closed, the dielectric material layers on the two supporting plates come into contact to produce friction charge; and then subjected to the reverse force after compression of the spring, the two dielectric material layers are separated, so as to generate an induction electric field by the friction charge and form a potential difference. Compared with an existing vibration energy harvester, the advantages will be small space occupation, a long service life, simple fabrication, and a high energy conversion rate.

Abstract: A conductive terminal includes a first terminal and a second terminal stacked on the first terminal. The first terminal has a plurality of first contact portions at an end of the first terminal. A gap is formed between two adjacent first contact portions. The second terminal has a second contact portion at an end of the second terminal. At least a part of the second contact portion extends through the gap of the first terminal.

Abstract: Disclosed in the present invention is a novel overvoltage protective device for lightning protection, comprising a first varistor, a second varistor, a PTC Thermistor, and lead-out terminals. The first varistor and the PTC Thermistor are connected in parallel, and then further connected in series with the second varistor to form a single port combined circuit. The surge-withstand capability of the first varistor is higher than the surge-withstand capability of the second varistor. At least one of the two lead-out terminals of the single port combined circuit is a thermally-conductive end with low thermal resistance. The second varistor is thermally coupled to the PTC Thermistor. The thermally-conductive end with low thermal resistance is thermally coupled to one or both of the second varistor and the PTC Thermistor.

Abstract: An electrically conductive terminal that has a first terminal at its outer layer and a second terminal at its inner layer. The first terminal has a first contact portion at an end thereof. The second terminal is on an inner surface side of the first terminal and has a second contact portion at an end thereof. There is an opening in the first contact portion. A raised portion is on the second contact portion. The raised portion passes through the first terminal via the opening, so as to electrically contact with a mating member. The first terminal at the outer layer and the second terminal at the inner layer may be in electrical contact with the mating member simultaneously, so that the electrically conductive terminal may carry a larger electric current. The electrically conductive terminal can be part of a connector.

Abstract: A method and apparatus for optimizing a blocking grating for cone beam CT image scattering correction, wherein the method comprises: scanning a blocking grating to establish a swinging model thereof; setting initial coordinates of the blocking grating along a longitudinal direction of a detector in an initial projection, and establishing an objective function between CBCT image data missing voxel values and the coordinates of the blocking grating along the longitudinal direction of the detector according to the swinging model; minimizing the objective function with a mesh-adaptive direct search algorithm to generate optimized coordinates of the blocking grating along the longitudinal direction of the detector.

Abstract: A conductive terminal includes a first terminal and a second terminal stacked on the first terminal. The first terminal has a plurality of first contact portions at an end of the first terminal. A gap is formed between two adjacent first contact portions. The second terminal has a second contact portion at an end of the second terminal. At least a part of the second contact portion extends through the gap of the first terminal.

Abstract: The invention provides a method and a device for seeing through an obstruction based on smart glasses, and a computer-readable storage medium, the method comprising: acquiring a first image of user's view by smart glasses and recognizing an obstruction image in the first image; acquiring a second image of the user's view by at least one image acquisition device; replacing the obstruction image in the first image with portion of the second image that corresponds to the obstruction image, which are spliced to generate an unobstruction image of the user's view. In the invention, the obstruction image in the first image is replaced with a portion of the second image that corresponds to the obstruction image, which can achieve seeing through an obstruction.

Abstract: An electronic device includes a first speaker for generating a first sound wave; a first chamber coupled to a first side of the first speaker for outputting the first sound wave generated by the first speaker; a second chamber coupled to a second side of the first speaker; a functional device in the second chamber including at least one functional device that generates heat during operation; and a hollow duct located in the second chamber for transporting air from the second chamber to an outlet of the hollow duct, dissipating heat generated by the functional device.

Abstract: An electrically conductive terminal that has a first terminal at its outer layer and a second terminal at its inner layer. The first terminal has a first contact portion at an end thereof. The second terminal is on an inner surface side of the first terminal and has a second contact portion at an end thereof. There is an opening in the first contact portion. A raised portion is on the second contact portion. The raised portion passes through the first terminal via the opening, so as to electrically contact with a mating member. The first terminal at the outer layer and the second terminal at the inner layer may be in electrical contact with the mating member simultaneously, so that the electrically conductive terminal may carry a larger electric current. The electrically conductive terminal can be part of a connector.

Abstract: The invention provides a method and a device for seeing through an obstruction based on smart glasses, and a computer-readable storage medium, the method comprising: acquiring a first image of user's view by smart glasses and recognizing an obstruction image in the first image; acquiring a second image of the user's view by at least one image acquisition device; replacing the obstruction image in the first image with portion of the second image that corresponds to the obstruction image, which are spliced to generate an unobstruction image of the user's view. In the invention, the obstruction image in the first image is replaced with a portion of the second image that corresponds to the obstruction image, which can achieve seeing through an obstruction.

Abstract: The present disclosure provides an electronic device. The electronic device includes a first speaker for generating a first sound wave; a first chamber coupled to a first side of the first speaker for outputting the first sound wave generated by the first speaker; a second chamber coupled to a second side of the first speaker; a functional device in the second chamber including at least one functional device that generates heat during operation; and a hollow duct located in the second chamber for transporting air from the second chamber to an outlet of the hollow duct, dissipating heat generated by the functional device.

Abstract: An electrical connector includes a housing, a lock mechanism, a trigger, and a strap. The lock mechanism is mounted on the housing and has a locking member. The lock mechanism is movable between a locking position in which the locking member locks the electrical connector to a mating electrical connector and an unlocking position in which the locking member is disengaged from the mating electrical connector. The trigger is pivotally mounted on the housing and is movable between a deactivated position and an activated position. The trigger moves the lock mechanism from the locking position to the unlocking position as the trigger moves between the deactivated position and the activated position. The strap is connected to the trigger and moves the trigger from the deactivated position to the activated position upon applying an activation force to the strap.

Abstract: A method and apparatus for optimizing a blocking grating for cone beam CT image scattering correction, wherein the method comprises: scanning a blocking grating to establish a swinging model thereof; setting initial coordinates of the blocking grating along a longitudinal direction of a detector in an initial projection, and establishing an objective function between CBCT image data missing voxel values and the coordinates of the blocking grating along the longitudinal direction of the detector according to the swinging model; minimizing the objective function with a mesh-adaptive direct search algorithm to generate optimized coordinates of the blocking grating along the longitudinal direction of the detector.

Abstract: Disclosed is see-through smart glasses (100) and see-through methods thereof. The see-through smart glasses (100) includes a model storing module (110), an image processing module (130) and an image displaying module (120). The model storing module (110) is used for storing a 3D model of a target; the image processing module (130) is used for identifying target extrinsic marker (210?) of the target (200) based on a user's viewing angle, find out a spatial correlation between the target extrinsic marker (210?) and internal structure (220) based on the 3D model of the target (200), and generating an interior image of the target (200) corresponding to the viewing angle based on the spatial correlation; and the image displaying module (120) is used for displaying the interior image.

Abstract: An electrical connector includes a housing, a lock mechanism, a trigger, and a strap. The lock mechanism is mounted on the housing and has a locking member. The lock mechanism is movable between a locking position in which the locking member locks the electrical connector to a mating electrical connector and an unlocking position in which the locking member is disengaged from the mating electrical connector. The trigger is pivotally mounted on the housing and is movable between a deactivated position and an activated position. The trigger moves the lock mechanism from the locking position to the unlocking position as the trigger moves between the deactivated position and the activated position. The strap is connected to the trigger and moves the trigger from the deactivated position to the activated position upon applying an activation force to the strap.

Abstract: A module having a front/rear and top/bottom orientation comprising a housing having a front and rear end; a connector at the front end of the housing for interengaging with a mating connector having purchase point; a resilient latch having a secured end secured to the housing, and a free end forward of the secured end, the free end being biased toward the housing and configured to releasibly engage the purchase point; and an actuator moveably attached to the housing, the actuator being disposed under the latch and having a contact portion which contacts the latch as the actuator is pulled rearward to urge the latch away from the housing, thereby freeing the free end from the purchase point.

Abstract: A module having a front/rear and top/bottom orientation comprising a housing having a front and rear end; a connector at the front end of the housing for interengaging with a mating connector having purchase point; a resilient latch having a secured end secured to the housing, and a free end forward of the secured end, the free end being biased toward the housing and configured to releasibly engage the purchase point; and an actuator moveably attached to the housing, the actuator being disposed under the latch and having a contact portion which contacts the latch as the actuator is pulled rearward to urge the latch away from the housing, thereby freeing the free end from the purchase point.

Abstract: Chain end functionalized fluoropolymers are disclosed exhibiting good chemical reactivity high breakdown electric field (E>100 MV/m) and high dielectric constants (i.e., ?>10). The polymers can be prepared by functional initiators and from a variety of fluoromonomers including vinylidene difluoride together with one or more additional monomers. The polymers can be combined with other dielectric materials to form composites having uniform composition and morphology.

Abstract: Chain end functionalized fluoropolymers are disclosed exhibiting good chemical reactivity high breakdown electric field (E>100 MV/m) and high dielectric constants (i.e., ?>10). The polymers can be prepared by functional initiators and from a variety of fluoromonomers including vinylidene difluoride together with one or more additional monomers. The polymers can be combined with other dielectric materials to form composites having uniform composition and morphology.