Abstract: A compact single-axis confocal endomicroscope is provided, capable of complying with 2.8 mm diameter endoscope space requirements. The single-axis confocal endomicroscope uses a folded path design achieved between a fixed mirror and a lateral plane scanning mirror thereby producing high numerical apertures that allow for diffraction-limited resolution in sub-surface scanning. The scanning mirror has a central aperture that allows for illumination beam expansion in the folded path design.

Abstract: A nail gun having an energy storage mechanism for storing energy used for striking nails out of the nail gun, the energy storage mechanism comprises a guiding rod attached to a fixed plate assembly; a piston disposed on the guiding rod; a striking member mounted on the piston for striking the nails; at least one power spring disposed around an outer periphery of the guiding rod; a guide sleeve moveably disposed around the outer periphery of the guiding rod and between the power spring and the guiding rod; wherein a first end of the power spring abuts against the piston and is configured to be compressed to store energy.

Abstract: A nail gun having a striking member installation mechanism comprises a casing having a main casing body, and a striking member baffle removably disposed over a replacement opening of the main casing body; a striking member removably disposed inside the main casing body and below the striking member baffle; and a striking member driving assembly having a piston for driving the striking member in a reciprocating motion direction, wherein the striking member has a striking member tail, a protruding part, and a guiding striking part; wherein the piston comprises a striking member connector having a protruding part receiving hole; and wherein the protruding part is removably received in the protruding part receiving hole.

Abstract: A method and system for fish identification based on body surface texture features and geometric features are provided. The method employs an improved Resnet network and a deep learning Yolov8 network to extract body surface texture features and geometric features of a fish on the basis of considering influences of fish tail swing and an oxygen concentration on a fish body form based on a small sample learning framework, and then realizes identity recognition of a fish individual by coupled analysis of the body surface texture features and the geometric features. The method can realize high-accuracy fish identification with few training samples of a fish to be identified from the perspective of actual application, provides theoretical basis and technical support for accurate fish stock assessment and accurate estimation of industrially farmed fish biomass, and meets the development requirements of modern agriculture.

Abstract: A light-emitting device includes: a lower electrode; a functional layer including at least a light-emitting layer; an upper electrode; a first capping layer containing an organic insulating material; and a second capping layer containing a metal complex, all of which are stacked on top of another in a stated order.

Abstract: An energy storage mechanism and a nail gun having the same. The energy storage mechanism is coupled with a striking mechanism for striking nails out of the nail gun along a striking direction. The energy storage mechanism comprises an energy storage member comprising an air chamber for containing air; an inner cylinder body for installing the striking mechanism therein; and an outer cylinder arranged outside the inner cylinder, such that the air chamber is formed between the outer cylinder and the inner cylinder; an inflatable member disposed on the energy storage member and configured to inflate the air chamber; and a pressure relief member disposed on the energy storage member and configured to release the pressure in the air chamber.

Abstract: A method includes: forming, on a substrate (10), an epitaxial layer (11) and a source conducting layer (21), where the epitaxial layer includes a first via, to form a first epitaxial layer (101) of the first transistor and a second epitaxial layer (102) of the second transistor; the source conducting layer includes a first source (211) of the first transistor and a second source (212) of the second transistor; and an edge of the first source (211) is flush with an edge of the first epitaxial layer (101) close to a side of the first via, and an edge of the second source (212) is flush with an edge of the second epitaxial layer (102) close to a side of the first via; forming a first conducting layer (13) in the first via; forming a second via; and forming a second conducting layer (14) in the second via.

Abstract: A transmission member and an anti-jamming assembly and a nail gun having the same. The transmission member comprises a rotating member configured to be driven by a driving motor to rotate, and an engaging part arranged on the rotating member. The rotating member has a plurality of pin mounting holes having at least one movable pin mounting hole. The engaging part comprises a plurality of engaging pins installed in the plurality of pin mounting holes. The plurality of engaging pins comprises at least one movable engaging pin moveably installed in at least one movable pin mounting hole. Two adjacent engaging pins define a gap therebetween. The anti-jamming assembly comprises a striker configured to strike nails out of the nail gun along a striking direction for nailing; and the transmission member coupled with the striker for driving the striker to move in a direction opposite to the striking direction.

Abstract: A driving mechanism and a nail gun having the same. The driving mechanism comprises a striking mechanism comprising a striker for striking nails out of the nail gun along a striking direction for nailing; an energy storage mechanism coupled with the striking mechanism for providing energy to drive the striking mechanism to move along the striking direction, and storing energy when the striking mechanism is driven to move in an opposite direction of the striking direction; and a transmission mechanism coupled with a driving motor and the striking mechanism for driving the striking mechanism to move in the opposite direction of the striking direction for storing energy. The transmission mechanism comprises a transmission member configured to drive the striker to move in the opposite direction of the striking direction; and a limiting member configured to operably prevent the striker from moving in the striking direction when storing energy.

Abstract: Provided herein are salts of the compound 1 and new poly morph forms thereof, pharmaceutical composition including the compound 1 and new polymorph forms thereof, and methods of preparing them and using them.

Abstract: Provided are a compound of formula (I) that inhibit the activity of PARP7, a stereoisomer thereof, a deuterated derivative thereof, or a pharmaceutically acceptable salt thereof, an intermediate to prepare the compound, a process to prepare the compound, a composition comprising the same, and the methods of using the same.

Abstract: A striker driving mechanism and a nail gun having the same. The striker driving mechanism includes a frame structure; a piston movably arranged between in the frame structure; at least one spring disposed between the piston and the frame structure and configured to provide driving force for movements of the piston; and a pushing member having a pushing end toward the piston and configured to push the piston toward the at least one spring, thereby compressing the at least one spring to store energy therein. The striker is co-movably connected to the piston. The piston comprises a piston body, made of lightweight materials; and a piston protector, configured to match the push end of the pushing member and installed on the piston body and facing the push member, wherein the piston protector is made of wear-resistant material.

Abstract: A semiconductor component and an electronic device are structured to reduce a gate-drain parasitic capacitance of the semiconductor component. The semiconductor component includes: a substrate; a channel layer and a barrier layer that are sequentially stacked on the substrate; a source and a drain that are disposed on the barrier layer; a first gate and a second gate that are disposed on the barrier layer. The first gate and the second gate are located between the source and the drain, and the second gate is disposed between the first gate and the drain. A first gate field plate is at least partially disposed on a side that is of the first gate and that is close to the drain; and a first source field plate. The first source field plate covers the first gate field plate.

Abstract: A driving mechanism and a nail gun having the same. The driving mechanism includes a driving force supply unit comprising a frame structure having a front limiting seat and a rear limiting seat; a piston movably arranged between the front limiting seat and the rear limiting seat in the frame structure; a striker co-movably connected to the piston; and a spring assembly disposed between the piston and the rear limiting seat in the frame structure, configured such that when the piston is driven to move backward in the frame structure, the spring assembly is pushed into a contract state to store energy therein, and when the piston is free, the spring assembly expands to release the stored energy therein to push the piston to move forward in the frame structure so that the striker is co-moved therewith to strike a nail out of a muzzle.

Abstract: The present disclosure relates to semiconductor devices, manufacturing methods, a power amplification circuits, and electronic devices. One example semiconductor device includes a substrate, a channel layer and a barrier layer sequentially disposed on the substrate in a stacked manner, a source, a gate, and a drain disposed on the barrier layer, a backside via through a region from the substrate to the barrier layer below the source, and a backside conductive layer covering the backside via and a back surface of the substrate, where the source is in contact with and connected to the backside conductive layer.

Abstract: The invention provides a refrigeration system. The refrigeration system comprises: a first circuit, wherein the first circuit is a natural cooling circuit and comprises a first evaporator; a second circuit, wherein the second circuit is a mechanical refrigeration circuit and comprises a second evaporator; and a coolant circuit, wherein the coolant circuit passes through the first evaporator and the second evaporator in sequence, and the coolant circuit further comprises a first bypass branch in parallel with the first evaporator, where a first control valve is provided on the first bypass branch. The refrigeration system according to the embodiments of the invention has a smaller flow resistance in the mechanical refrigeration mode, thus effectively reducing the energy consumption of the coolant drive pump on the coolant flow path.

Abstract: A nail gun having an energy storage mechanism for storing energy used for striking nails out of the nail gun, the energy storage mechanism comprises a guiding rod attached to a fixed plate assembly; a piston disposed on the guiding rod; a striking member mounted on the piston for striking the nails; at least one power spring disposed around an outer periphery of the guiding rod; a guide sleeve moveably disposed around the outer periphery of the guiding rod and between the power spring and the guiding rod; wherein a first end of the power spring abuts against the piston and is configured to be compressed to store energy.

Abstract: A nail gun having a driving and controlling mechanism. The driving and controlling mechanism comprises a driving assembly disposed inside a casing of the nail gun for striking nails in a striking direction; and a control assembly controlling the driving assembly. The driving assembly comprises a piston movably disposed inside the casing and attached to a striking member for striking the nails; at least one power spring in contact with the piston; a pushing component for pushing the piston towards the power spring; and a motor for rotating the pushing component. The control assembly comprises a main switch configured to produce a first electronic signal; and a safety switch configured to produce a second electronic signal. The main switch and the safety switch are in communication with the motor such that the motor is configured to operate when it receives both the first electronic signal and the second electronic signal.

Abstract: A nail gun having a striking member installation mechanism comprises a casing having a main casing body, and a striking member baffle removably disposed over a replacement opening of the main casing body; a striking member removably disposed inside the main casing body and below the striking member baffle; and a striking member driving assembly having a piston for driving the striking member in a reciprocating motion direction, wherein the striking member has a striking member tail, a protruding part, and a guiding striking part; wherein the piston comprises a striking member connector having a protruding part receiving hole; and wherein the protruding part is removably received in the protruding part receiving hole.

Abstract: This application discloses a charging control apparatus and method, and an electric vehicle. The charging control apparatus includes: a signal processing module, configured to: receive a first control pilot signal sent by power sourcing equipment, and send a high-level signal of target duration to a wake-up module based on the first control pilot signal; and the wake-up module, configured to: wake up a battery management system after duration in which the high-level signal is received reaches the target duration. With the use of the charging control apparatus, even if power is on again after a power failure in a charging process, there is no need to remove a charging connector from and re-insert the charging connector into a charging socket or restart an electric vehicle/a charging pile.