Abstract: Embodiments of the present disclosure provide a physical test system of large-scale three-dimensional multi-functional landslide-prevention and control structure. The system comprises a model test tank, a bidirectional servo loading system, a multi-scale model transformation system, a sliding surface evolution visualization system, a positive pressure monitoring system, an artificial rainfall system, and a control system. The bidirectional servo loading system applies a horizontal load and a vertical load, and the multi-scale model transformation system includes a plurality of retractable counterforce brackets, configured to change a width of the model test tank; and the sliding surface evolution visualization system includes a plurality of filming devices, configured to record a whole evolution process of a landslide sliding surface evolution.

Abstract: A pile-net flexible cable barrier structure includes a first V-shaped pile, a second V-shaped pile, a left tension pile, a right tension pile, a first flexible cable net disposed between the left tension pile and the first V-shaped pile, a second flexible cable net disposed between the first V-shaped pile and the second V-shaped pile, and a third flexible cable net disposed between the second V-shaped pile and the right tension pile. A second pile body of the first V-shaped pile are disposed parallel to a third pile body of the second V-shaped pile, openings of the first V-shaped pile and the second V-shaped pile face a same side, the left tension pile are disposed parallel to the first pile body of the first V-shaped pile, and the right tension pile are disposed parallel to the fourth pile body of the second V-shaped pile.

Abstract: Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.

Abstract: Provided in the present invention are the preparation for a chimeric antigen receptor immune cell constructed on the basis of a growth arrest-specific protein 6 and the use of the chimeric antigen receptor immune cell. Specifically, provided in the present invention is a chimeric antigen receptor (CAR) based on GAS6 transformation. The CAR contains an extracellular binding domain, which can specifically target a GAS6 receptor. The CAR immune cell of the present invention has a strong specificity and target affinity, thereby also having a strong target cell killing capability and a high safety.

Abstract: A laser transmission system includes: a modulation module, a voltage-current conversion module, an electro-optic conversion module, an optic-electro conversion module, and a control module. The modulation module is configured to modulate an input voltage, and output a first voltage. An average value of the first voltage within a first duration is 0. The voltage-current conversion module is configured to output a first current based on the first voltage. The electro-optic conversion module is configured to output an optical signal corresponding to the first current. The optic-electro conversion module is configured to receive the optical signal from the analog optical fiber, and output a second voltage based on the optical signal. The control module is configured to determine an average value of the second voltage, and determine an electro-optic conversion coefficient of the electro-optic conversion module based on the average value of the second voltage.

Abstract: A signal transmission system includes a first laser signal transmission system, a second laser signal transmission system and a control module. The first laser signal transmission system includes an electric signal generation module, a first electro-optical conversion module and a first optical-electro conversion module. The electric signal generation module outputs a first current and a first voltage. The first electro-optical conversion module outputs a first optical signal. The first optical-electro conversion module outputs a second voltage. The second laser signal transmission system alternately inputs the first voltage and a calibration voltage and outputs a third voltage. The control module determines the first voltage based on the correspondence relationship between the calibration voltage and the third voltage and based on the third voltage, and determines a first electro-optical conversion coefficient based on a ratio of the first voltage to the second voltage.

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 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.