Abstract: A wheeled carrying apparatus includes a frame structure including a standing frame, a wheel mount carrying a wheel and pivotally connected with the standing frame, the wheel being rotatable relative to the first wheel mount about a wheel axis, a locking assembly including a wheel mount latch movably connected with the standing frame, the wheel mount latch being engaged with the wheel mount to rotationally lock the first wheel mount with respect to the standing frame, and disengaged from the wheel mount to unlock the wheel mount for rotation of the wheel mount to change an orientation of the wheel axis, an actuating assembly coupled to the wheel mount latch and including one or more linking part, and a release mechanism including an operating part provided on the frame structure that is operable to cause the actuating assembly to pull the wheel mount latch to disengage from the wheel mount.

Abstract: In certain aspects, a three-dimensional (3D) memory device includes a stack structure including alternating conductive layers and dielectric layers and having at least two core regions and a staircase region between the two core regions, and bridge structures connecting the two core regions and extending through the staircase region in a first direction. A first bridge structure of the bridge structures includes at least two current paths between the two core regions.

Abstract: A black-box fuzzing testing method includes: generating a plurality of testcases; executing a target program based on each of the generated testcases to obtain a plurality of execution results; determining a plurality of execution paths of the target program using the execution results; and determining a code coverage of the target program from the execution paths.

Abstract: A wheeled carrying apparatus includes a frame structure including a standing frame, a wheel mount carrying a wheel and pivotally connected with the standing frame, the wheel being rotatable relative to the first wheel mount about a wheel axis, a locking assembly including a wheel mount latch movably connected with the standing frame, the wheel mount latch being engaged with the wheel mount to rotationally lock the first wheel mount with respect to the standing frame, and disengaged from the wheel mount to unlock the wheel mount for rotation of the wheel mount to change an orientation of the wheel axis, an actuating assembly coupled to the wheel mount latch and including one or more linking part, and a release mechanism including an operating part provided on the frame structure that is operable to cause the actuating assembly to pull the wheel mount latch to disengage from the wheel mount.

Abstract: A gas extraction device for metal mineral inclusions and a gas extraction method therefor are provided, the device includes a base plate, an annular carrier, sealing covers, a grinding assembly, a vacuum assembly, a gas-gathering assembly and a mass spectrometer. The annular carrier is disposed on the base plate, multiple grinding chambers are defined and evenly distributed in a circular shape on the annular carrier, the sealing covers are disposed at openings of the grinding chambers, the grinding assembly includes grinding hammers, and the grinding hammers penetrate through the sealing covers and extend into the grinding chambers. Side walls of each grinding chamber defines a first through hole and a second through hole. The vacuum assembly is communicated with the grinding chambers through the first through holes. The gas-gathering assembly is communicated with the grinding chambers through the second through holes. The mass spectrometer is communicated with the gas-gathering assembly.

Abstract: A semiconductor device and its operation method, relating to semiconductor technology. The semiconductor device comprises a substrate and an active area on the substrate, wherein the active area comprises a first active area and a second active area positioned along an extension direction of the first active area, the first active area comprises a first component, a second component, and a connection component, wherein the first component and the second component each directly contact a side of the connection component, wherein the second active area comprises a third component and a fourth component being separated by a groove isolation, the groove isolation in the second active area corresponds to the connection component in the first active area. The semiconductor device further comprises a first pseudo gate covering the connection component and the groove isolation. This inventive concept reduces over-etching when forming contact components.

Abstract: A semiconductor device and its operation method, relating to semiconductor technology. The semiconductor device comprises a substrate and an active area on the substrate, wherein the active area comprises a first active area and a second active area positioned along an extension direction of the first active area, the first active area comprises a first component, a second component, and a connection component, wherein the first component and the second component each directly contact a side of the connection component, wherein the second active area comprises a third component and a fourth component being separated by a groove isolation, the groove isolation in the second active area corresponds to the connection component in the first active area. The semiconductor device further comprises a first pseudo gate covering the connection component and the groove isolation. This inventive concept reduces over-etching when forming contact components.

Abstract: A process of quantifying proteins in a complex mixture is provided. The invention has utility in quantifying proteins in a complex preparation of uni- or multivalent commercial or research vaccine preparations.

Abstract: A process of quantifying proteins in a complex mixture is provided. The invention has utility in quantifying proteins in a complex preparation of uni- or multivalent commercial or research vaccine preparations.