Abstract: Systems and methods of observing a sample using a charged-particle beam apparatus in voltage contrast mode are disclosed. The charged-particle beam apparatus comprises a charged-particle source, an optical source, a charged-particle detector configured to detect charged particles, and a controller having circuitry configured to apply a first signal to cause the optical source to generate the optical pulse, apply a second signal to the charged-particle detector to detect the second plurality of charged particles, and adjust a time delay between the first and the second signals. In some embodiments, the controller having circuitry may be further configured to acquire a plurality of images of a structure, to determine an electrical characteristic of the structure based on the rate of gray level variation of the plurality of images of the structure, and to simulate, using a model, a physical characteristic of the structure based on the determined electrical characteristic.

Abstract: A knob assembly and a follow focus remote controller are disclosed. The knob assembly includes a base, a rotating assembly, and a damping adjustment assembly. The rotating assembly is rotatably mounted on the base. The damping adjustment assembly includes a damping member and an actuator. The damping member is positioned between the base and the actuator. The actuator can drive the damping member to move, thereby altering the insertion depth of an insertion segment into a damping groove for housing damping grease. The damping grease creates a sticky sensation between the damping member and the base, enabling the user to adjust the damping feel to their preference and providing excellent damping feedback.

Abstract: A display substrate, a preparation method thereof, and a display apparatus are provided, wherein the display substrate includes a display area and an edge area, and the display substrate further comprises a substrate and a power supply line arranged on the substrate and located in the edge area, the power supply line includes a first power supply portion and a second power supply portion connected with each other, the second power supply portion being located on a side of the first power supply portion far away from the substrate; the display area including a plurality of display units, at least one display unit includes a pixel driving circuit and a light emitting device, the pixel driving circuit being electrically connected with an anode of the light emitting device, the power supply line being electrically connected with a cathode of the light emitting device.

Abstract: A scan circuit includes a plurality of stages. A respective stage of the scan circuit includes a second processing subcircuit, which includes a first capacitor, a sixth transistor, and a seventh transistor; and a first connecting line connecting a gate electrode of the seventh transistor to a second clock signal line; and a sixth connecting line connecting a first electrode of the seventh transistor, a second electrode of the sixth transistor, and a second capacitor electrode of the first capacitor together. The sixth connecting line crosses over both a first capacitor electrode and the second capacitor electrode of the first capacitor. An orthographic projection of the first connecting line on a base substrate at least partially overlaps with an orthographic projection of the sixth connecting line on the base substrate.

Abstract: An electronic marking ring includes: a housing including a mounting space for mounting around an object, and further including a mounting chamber; an electronic marking ring main board mounted within the mounting chamber; a display screen electrically connected to the electronic marking ring main board, mounted on the housing, and exposed therefrom for displaying lens parameter data; a first connector disposed in the mounting chamber, electrically connected to the electronic marking ring main board, exposed from the housing, and configured to electrically connect to the external installation object. Compared with conventional solutions, the electronic marking ring of the present disclosure can connect to the control board of the handwheel via the first connector, receive lens parameter data from the handwheel, and display the data on the display screen. This facilitates the marking of lens parameters and simplifies parameter adjustment during shooting.

Abstract: A multi-gear control mechanism includes: a housing provided with a first limit protrusion; a toggle member rotatably connected to the housing and having a second limit protrusion; a travel space defined between the housing and the toggle member, wherein both the first and the second limit protrusions are located within the travel space; a gear adjustment switch having a travel limiter configured to move into and out of the travel space; and a sensor. The gear adjustment switch moves relative to the sensor and the toggle member, thereby enabling or disabling signal transmission from the sensor, and causing the travel limiter to enter or exit the travel space. This configuration adjusts the travel range of the toggle member, resulting in different travel ranges between the first and the second limit protrusions, thereby achieving multi-gear switching with varying travels and facilitating parameter adjustment.

Abstract: The present disclosure discloses an adjustment handle, which belongs to the field of photographic auxiliary equipment. The adjustment handle includes: a handle main body, an adjustment member, and a quick-release assembly. The quick-release assembly is movably disposed on either the handle main body or the adjustment member. By moving relative to the handle main body or the adjustment member, the quick-release assembly can selectively lock or unlock the handle main body and the adjustment member. Through the provision of the quick-release assembly between the adjustment member and the handle main body, the configuration enables detachable and rapid assembly and disassembly of the handle main body and the adjustment member, forming two separate modules. This configuration improves portability, facilitates shooting and replacement during use, and significantly enhances user convenience.

Abstract: The present disclosure relates to a lens parameter adjustment device in the field of photographic auxiliary equipment. The device includes a first main body, a second main body, and a quick-release assembly. The first main body includes a retaining groove. The quick-release assembly includes a retaining member and a trigger. Both the trigger and the retaining member are movably connected to the second main body, and the trigger is in contact with the retaining member. The trigger is configured to actuate the retaining member to engage with or disengage from the wall of the retaining groove. Through the cooperation between the quick-release assembly and the retaining groove, the first and second main body s can be detachably connected, forming two separate modules. This design enhances portability, facilitates shooting and component replacement, improves flexibility, and significantly increases user convenience.

Abstract: A lens parameter adjustment device includes a main body and a rotatable control assembly. The damping strength of the rotatable control assembly can vary according to the rotation angle, hereby enabling the lens parameter adjustment device to meet the damping tactile feedback needs of different users.

Abstract: Aspects of the disclosure are directed to automatic note taking and summary generation based on meeting discussions. Media streams that are generated by participants of a virtual meeting can be provided as input data to an artificial intelligence (AI) model. The AI model can use the received input data to take notes on the portion of the virtual meeting that is captured in the input data and to generate a summary of the portion of the virtual meeting that is captured in the input data. The meeting summaries can be provided for presentation to the participants of the virtual meeting at predetermined time intervals.

Abstract: Systems and methods of observing a sample using a charged-particle beam apparatus in voltage contrast mode are disclosed. The charged-particle beam apparatus comprises a charged-particle source, an optical source, a charged-particle detector configured to detect charged particles, and a controller having circuitry configured to apply a first signal to cause the optical source to generate the optical pulse, apply a second signal to the charged-particle detector to detect the second plurality of charged particles, and adjust a time delay between the first and the second signals. In some embodiments, the controller having circuitry may be further configured to acquire a plurality of images of a structure, to determine an electrical characteristic of the structure based on the rate of gray level variation of the plurality of images of the structure, and to simulate, using a model, a physical characteristic of the structure based on the determined electrical characteristic.

Abstract: Business transactions are complex and require numerous documents to be completed. Moreover, managing signatures to every one of the documents in such transactions is also an important aspect. Traditional systems and method are not adept at handling the intricacies of complex business transactions. The disclosure herein relates to an improved system and method for managing virtual signatures and electronic documents, wherein documents are managed via an online web infrastructure, the documents are drafted, distributed, collected and verified using virtual signatures at the web infrastructure.

Abstract: A damping apparatus, including a damping main arm, a base, a buffer assembly, and a coupling assembly. The front end of the damping main arm is designed to support and carry camera equipment. The base is rotatably connected to the rear end of the damping main arm. The buffer assembly is rotatably connected to the front end of the damping main arm and is configured to provide load damping. The coupling assembly includes a first connector, which is movably connected to the base, and a second connector, which is movably connected to the damping main arm. The coupling assembly forms a buffer zone among the damping main arm, the base, and the buffer assembly. When the damping apparatus pitches, the first and the second connectors swing slightly, thereby reducing variations in the movement stroke of the buffer assembly.

Abstract: A damping head, including a mounting frame; a mounting piece, movably connected to the front end of the mounting frame; and a balancing assembly, including a sensing unit, multiple actuators, and multiple transmission links. Two actuators are positioned on either side of the mounting frame, with each actuator connected to a corresponding transmission link. One end of each transmission link is connected to the actuator, and the other end is connected to the mounting piece. The sensing unit is designed to detect movement of the mounting piece and transmit this information to the actuator. When a vehicle is in motion and the shooting device experiences jitter, the mounting piece deflects. The sensing unit detects this deviation and transmits it to the actuator, which then drives the transmission link to provide a counteracting damping force to the mounting piece according to the deflection angle, ensuring the stability of the shooting device.

Abstract: A silicon carbide substrate having high crystal quality, belonging to the technical field of silicon carbide production and processing. The silicon carbide substrate comprises a first main surface and a second main surface; the first main surface has a central area and an annular area surrounding the central area, the width of the annular area extending inward from an edge of the substrate being 5-30 mm; the central area is divided into square areas, each having a side length of 5 mm, the internal stress of each square area being less than the internal stress of the annular area, and the internal stress being the stress value detected at least 30 ?m vertically extending from the first main surface or the second main surface into the silicon carbide substrate. The internal stress in the central area of the silicon carbide substrate is relatively low.

Abstract: A grinding machine includes a main machine body, a grinding device, a powder pressing device and a driving device, wherein the grinding device has a grinding housing mounted on the main machine body, and a grinding component arranged in the grinding housing; the powder pressing device has a powder receiving device and a powder pressing component; the driving device has a driver arranged on the main machine body, a first transmission shaft mounted on the grinding component, and a second transmission shaft mounted on the powder pressing component; the driver is in transmission connection with the first transmission shaft; the second transmission shaft is in transmission connection with the first transmission shaft; and the second transmission shaft is slidably mounted relative to the powder receiving device.

Abstract: A scan circuit includes a plurality of stages. A respective stage of the scan circuit includes a second processing subcircuit, which includes a first capacitor, a sixth transistor, and a seventh transistor; and an input subcircuit including a first transistor, and an input signal line configured to provide an input signal to the first transistor. The respective stage of the scan circuit further includes a sixth connecting line connecting a first electrode of the seventh transistor, a second electrode of the sixth transistor, and a second capacitor electrode of the first capacitor together. The sixth connecting line crosses over both the first capacitor electrode and the second capacitor electrode of the first capacitor. A shortest distance between an active layer of the seventh transistor and the input signal line is less than a shortest distance between an active layer of the sixth transistor and the input signal line.

Abstract: A driving circuit, a driving method, a driving module and a display device are provided. The driving circuit includes a driving signal generation circuit, a gating circuit, an output control circuit, an output circuit, a voltage control circuit and a third control node control circuit. The third control node control circuit is electrically connected to the first node and the third control node respectively, and is configured to control the potential of the third control node according to the potential of the first node.

Abstract: A display substrate, a preparation method thereof, and a display apparatus are provided, wherein the display substrate includes a display area and an edge area, and the display substrate further comprises a substrate and a power supply line arranged on the substrate and located in the edge area, the power supply line includes a first power supply portion and a second power supply portion connected with each other, the second power supply portion being located on a side of the first power supply portion far away from the substrate; the display area including a plurality of display units, at least one display unit includes a pixel driving circuit and a light emitting device, the pixel driving circuit being electrically connected with an anode of the light emitting device, the power supply line being electrically connected with a cathode of the light emitting device.

Abstract: A driving circuit, a driving method, a driving module and a display device are provided. The driving circuit includes a driving signal generation circuit, a gating circuit, an output control circuit, an output circuit, a voltage control circuit and a third control node control circuit. The third control node control circuit is electrically connected to the first node and the third control node respectively, and is configured to control the potential of the third control node according to the potential of the first node.