Abstract: Embodiments of structure and methods for forming a three-dimensional (3D) memory device are provided. In an example, the memory device includes a stack structure having interleaved a plurality of conductor layers and a plurality of dielectric layers over a substrate along a vertical direction. The memory device also includes a channel structure extending in the stack structure along the vertical direction. A thickness of at least one of the plurality of conductor layers is nominally proportional to a width of the channel structure at the same depth.

Abstract: Embodiments of structure and methods for forming a three-dimensional (3D) memory device are provided. In an example, the memory device includes a stack structure having interleaved a plurality of conductor layers and a plurality of dielectric layers over a substrate along a vertical direction. The memory device also includes a channel structure extending in the stack structure along the vertical direction. A thickness of at least one of the plurality of dielectric layers is nominally inversely proportional to a width of the channel structure at the same depth.

Abstract: Embodiments of 3D memory device having channel structures with a native oxide layer and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack is formed on a substrate. The dielectric stack includes interleaved first dielectric layers and second dielectric layers on a substrate. An opening extending vertically through the dielectric stack is formed. A native oxide layer is formed along a sidewall of the opening. The native oxide layer includes native oxide of at least some of the first dielectric layers. A deposited oxide layer, a storage layer, a tunneling layer, and a semiconductor channel are subsequently formed in this order over the native oxide layer and along the sidewall of the opening. A memory stack includes interleaved conductor layers and the second dielectric layers is formed by replacing, with the conductor layers, the first dielectric layers in the dielectric stack.

Abstract: An automobile is provided with a hub motor having a simplified structure to make an automobile more cost effective, while also increasing a handling stability as well. The hub motor includes a center shaft, a brake disc fixedly connected with the center shaft, a coil support sleeved on the center shaft, and a motor controller. The motor controller advantageously controls a supply of alternating current to the coils to selectively provide forward movement power for the wheel; implement braking or reverse rotation of the wheel; and charging a power supply to implement braking energy recovery.

Abstract: Embodiments of 3D memory device having channel structures with a native oxide layer and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack is formed on a substrate. The dielectric stack includes interleaved first dielectric layers and second dielectric layers on a substrate. An opening extending vertically through the dielectric stack is formed. A native oxide layer is formed along a sidewall of the opening. The native oxide layer includes native oxide of at least some of the first dielectric layers. A deposited oxide layer, a storage layer, a tunneling layer, and a semiconductor channel are subsequently formed in this order over the native oxide layer and along the sidewall of the opening. A memory stack includes interleaved conductor layers and the second dielectric layers is formed by replacing, with the conductor layers, the first dielectric layers in the dielectric stack.

Abstract: A method and device for aerial vehicle-based image projection, and an aerial vehicle are provided. The method comprises adjusting a position of the aerial vehicle to a projection-permitted position if an image projection event for the aerial vehicle is detected, triggering a projection module of the aerial vehicle to project an image. Adjusting the position of the aerial vehicle comprises adjusting the position of the aerial vehicle based on an obstacle image captured in a projecting direction of the projection module.

Abstract: A hub motor is provided with a simplified structure to make an automobile more cost effective. The hub motor includes a center shaft, a brake disc fixedly connected with the center shaft, a coil support sleeved on the center shaft, and a motor controller. The coil support advantageously includes first and second coil supports that include first and second vents, respectively.

Abstract: A gas leakage treatment method includes detecting a target gas concentration of a target gas in an environment at a corresponding position of a gas delivery pipeline in a process of moving along the gas delivery pipeline. The method further includes, if the target gas concentration is greater than a preset concentration threshold, determining that gas leakage occurs and performing a gas leakage treatment operation.

Abstract: An automobile is provided with a hub motor having a simplified structure to make an automobile more cost effective, while also increasing a handling stability as well. The hub motor includes a center shaft, a brake disc fixedly connected with the center shaft, a coil support sleeved on the center shaft, and a motor controller. The motor controller advantageously controls a supply of alternating current to the coils to selectively provide forward movement power for the wheel; implement braking or reverse rotation of the wheel; and charging a power supply to implement braking energy recovery.

Abstract: A gas leakage treatment method includes detecting a target gas concentration of a target gas in an environment at a corresponding position of a gas delivery pipeline in a process of moving along the gas delivery pipeline. The method further includes, if the target gas concentration is greater than a preset concentration threshold, determining that gas leakage occurs and performing a gas leakage treatment operation.

Abstract: A method and device for aerial vehicle-based image projection, and an aerial vehicle are provided. The method comprises adjusting a position of the aerial vehicle to a projection-permitted position if an image projection event for the aerial vehicle is detected, triggering a projection module of the aerial vehicle to project an image. Adjusting the position of the aerial vehicle comprises adjusting the position of the aerial vehicle based on an obstacle image captured in a projecting direction of the projection module.

Abstract: A suspending hydraulic pillar includes an oil cylinder, a movable prop, a handle-valve body, a reset spring, a top cover, a bottom seat, a three-way valve, a position-limiting steel wire, and a guide ring. The handle-valve body is provided between a port of the oil cylinder port and the moveable prop. Position-limiting steel wire, a guiding ring, and an oil inlet is located on a lower part of the moveable prop. The three-way valve is provided in the handle-valve body. A dust-prevention ring and a sealing ring are provided between the handle-valve body, the movable prop, and the oil cylinder. The handle-valve body is fixed on the oil cylinder by means of a connecting steel wire. The handle-valve body does not move up and down as the movable prop telescopically extends or contracts. The suspending hydraulic has good stability, high strength and supporting force, good sealing, and high anti-erosive capability.

Abstract: A suspending hydraulic pillar includes an oil cylinder, a movable prop, a handle-valve body, a reset spring, a top cover, a bottom seat, a three-way valve, a position-limiting steel wire, and a guide ring. The handle-valve body is provided between a port of the oil cylinder port and the moveable prop. Position-limiting steel wire, a guiding ring, and an oil inlet is located on a lower part of the moveable prop. The three-way valve is provided in the handle-valve body. A dust-prevention ring and a sealing ring are provided between the handle-valve body, the mvoable prop, and the oil cylinder. The handle-valve body is fixed on the oil cylinder by means of a connecting steel wire. The handle-valve body does not move up and down as the movable prop telescopically extends or contracts. The suspending hydraulic has good stability, high strength and supporting force, good sealing, and high anti-erosive capability.