Abstract: Disclosed are an unblocking apparatus for a furnace discharging pipe and a use method. The unblocking apparatus includes a rail, a rail car that may move along the rail, an unblocking drive mechanism arranged on the rail car, a heat-unblocking component, a cold-unblocking component, and a material receiving component that is used to receive a blocking material in the discharging pipe, and a drive end of the unblocking drive mechanism is detachably connected with one end of the heat-unblocking component and the cold-unblocking component respectively. The present application effectively handles different blockage situations of the furnace discharging pipe by connecting the unblocking drive mechanism with an unblocking rod capable of heat-unblocking and a drilling rod capable of cold-unblocking, thereby two modes of heat-unblocking and cold-unblocking are performed on the furnace discharging pipe; and the discharging pipe may be unblocked by a remote operation.

Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, and a bonding interface between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes an array of memory cells, a first peripheral circuit of the array of memory cells, and a polysilicon layer between the array of memory cells and the first peripheral circuit. The first peripheral circuit includes a first transistor. The second semiconductor structure includes a second peripheral circuit of the array of memory cells. The second peripheral circuit includes a second transistor.

Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, a third semiconductor structure, and a first bonding interface between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes an array of memory cells. The second semiconductor structure includes a first peripheral circuit of the array of memory cells. The first peripheral circuit includes a first transistor. A third semiconductor structure includes a second peripheral circuit of the array of memory cells. The second peripheral circuit includes a second transistor. The first semiconductor structure, the second semiconductor structure, and the third semiconductor structure are stacked over one another.

Abstract: The present disclosure discloses a strain of Acidomyces acidothermus and its application in leaching copper-containing pollutants from waste circuit boards, belonging to the technical field of bio-leaching. According to the present disclosure, a strain of A. acidothermus is separated from the sludge of a Changzhou sewage treatment plant; and the strain can normally grow under an acidic condition, and copper contained in a system can be leached out in a form of copper ions by adding the strain into waste or pollutants containing heavy metal copper, so that the metal copper in the waste or pollutants is effectively treated. The treatment process is simple, the requirements for the environment and the technology are low, and the treated waste liquid does not contain high-concentration chemical reagents, which facilitates subsequent waste liquid treatment; and therefore, the A. acidothermus is suitable for industrial application.

Abstract: A scooter folding mechanism includes a bottom plate, an inclined rod, a limiting mechanism, a double-lock catch, a limiting plate rotatably arranged on the bottom plate, and a pedal rotatably arranged on the limiting plate. The inclined rod is rotatably arranged on the bottom plate. The limiting mechanism includes unfolding and folding clamping slots arranged on the inclined rod, a limiting piece and a return spring arranged on the limiting plate and matched with the unfolding or folding clamping slots. The return spring is configured to drive the limiting piece to engage with the unfolding or folding clamping slots. The unfolding and folding clamping slots are distributed circumferentially around a first shaft rod. The double-lock catch includes a double-lock block rotatably arranged on the inclined rod and a double-clamping groove arranged on the pedal and matched with the double-lock block.

Abstract: A scooter folding mechanism includes a bottom plate, an inclined rod, a limiting mechanism, a double-lock catch, a limiting plate rotatably arranged on the bottom plate, and a pedal rotatably arranged on the limiting plate. The inclined rod is rotatably arranged on the bottom plate. The limiting mechanism includes unfolding and folding clamping slots arranged on the inclined rod, a limiting piece and a return spring arranged on the limiting plate and matched with the unfolding or folding clamping slots. The return spring is configured to drive the limiting piece to engage with the unfolding or folding clamping slots. The unfolding and folding clamping slots are distributed circumferentially around a first shaft rod. The double-lock catch includes a double-lock block rotatably arranged on the inclined rod and a double-clamping groove arranged on the pedal and matched with the double-lock block.