Abstract: A few-shot object detection method includes: sending a weight of a backbone network and a weight of a feature pyramid to a detection network; generating candidate regions, in which the candidate regions derived from a result of foreground-and-background classification and regression of output features of the visual representation backbone network by a region proposal network; generating candidate region features of a uniform size using a pooling operator based on the candidate regions, and performing location regression, content classification and fine-grained feature mining on the candidate region features of the uniform size; establishing fine-grained positive sample pairs and negative sample pairs through the fine-grained feature mining, and performing comparative learning between fine-grained features of the candidate regions; and generating a loss function according to a strategy in fine-grained feature mining, and updating detection network parameters by calculating based on the loss function.

Abstract: The present disclosure provides a light-emitting substrate and a manufacturing method thereof, a backlight and a display device. The light-emitting substrate includes a substrate including a plurality of light-emitting regions arranged in an array, each of the plurality of light-emitting regions including a driving circuit and at least one light-emitting unit connected to the driving circuit, a first electrically conductive portion on the substrate and connected to the driving circuit and the at least one light-emitting unit in each light-emitting region, and a second electrically conductive portion on the substrate and including a plurality of pads. The first electrically conductive portion and the second electrically conductive portion are on a same layer.

Abstract: A system for regulating an environment within an operator cabin of a machine via a heating, ventilation, and air conditioning (HVAC) system includes a first sensor that generates a first signal of an amount of air pressure within the operator cabin, a second sensor that generates a second signal of an amount of carbon dioxide within the operator cabin, an air filtration element to direct pre-cleaned air into the operator cabin, an inlet valve disposed between the air filtration element and the HVAC system for controlling a flowrate of the pre-cleaned air to the HVAC system, and a controller. The controller actuates dynamic auto-control of the inlet valve to direct an optimally varying flowrate of the pre-cleaned air from the air filtration element to the HVAC system via the inlet valve to maximize a service life of the air filtration element.

Abstract: Provided are catechol nanoparticles, catechol protein nanoparticles, and a preparation method and use thereof. The method includes: adding a tannin compound-containing natural herb medicine into water to obtain a mixture, and subjecting the mixture to heating reflux extraction to obtain a herb medicine extract and subjecting the herb medicine extract to fractionation to obtain the catechol nanoparticles.

Abstract: The disclosure provides a bendable lighter, including an ignition head; a handle, the handle including a housing, the housing including a body, a cavity, a first end, and a second end; a deformable bar disposed on the first end of the handle; a support disposed on one end of the deformable bar away from the handle; a lamp disposed on the first end of the handle and on one side of the deformable bar; an ignition coil; a printed circuit board; an ignition switch; a lighting switch; a polymer battery; an ignition button; a lighting button; a power indicator; a USB interface; and a power switch. The ignition head is fixedly disposed on the support; the ignition coil, the printed circuit board, and the polymer battery are disposed in the cavity in order from the first end to the second end.

Abstract: The present invention provides a push-out portable arc igniter. An igniter head is arranged at a front end of an ignition push-out device. An illuminating lamp is arranged in parallel with the igniter head. A main plastic member of the ignition push-out device is internally provided with a high pressure pack and a circuit board. A polymer lithium battery is arranged above the circuit board, and an illuminating lamp switch is arranged at a middle position of a left end of the circuit board. A power security switch, a charging indicator lamp and a USB charging port are arranged at a right end of the circuit board. A tail portion plastic member is set as an L shape, and the tail portion plastic member is connected to the ignition push-out device through a spring.

Abstract: The disclosure provides a bendable lighter, including an ignition head; a handle, the handle including a housing, the housing including a body, a cavity, a first end, and a second end; a deformable bar disposed on the first end of the handle; a support disposed on one end of the deformable bar away from the handle; a lamp disposed on the first end of the handle and on one side of the deformable bar; an ignition coil; a printed circuit board; an ignition switch; a lighting switch; a polymer battery; an ignition button; a lighting button; a power indicator; a USB interface; and a power switch. The ignition head is fixedly disposed on the support; the ignition coil, the printed circuit board, and the polymer battery are disposed in the cavity in order from the first end to the second end.

Abstract: A rechargeable intelligent arc igniter includes an ignition head and a handle. A front end of the handle is provided with a deformable ignition rod and an illuminating lamp. A front end of the deformable ignition rod is fixed with an ignition head. A printed circuit board is inlaid with an ignition switch and an illuminating lamp switch. A tail end of the handle is set as a flat semicircle, and is smoothly connected with the handle. A hook hole is arranged at a position concentric to the semicircle. A shell of the handle is provided with a circular ignition button and an illuminating lamp button corresponding to the ignition switch and the illuminating lamp switch. The illuminating lamp button is provided with a power indicator lamp. A side edge of the shell is provided with a USB charging interface, and a right side thereof is provided with a power switch.