Abstract: This application provides for data transmission between first and second network devices. The first network device requests information from the second network device and in return receives grant information from the second network device. The grant information includes at least a first sequence number that is used by the first network device to determine a first credit limit, where the first credit limit is an amount of data allowed to be sent by the first network device in a packet-distributed load sharing manner. The first network device sends data to the second network device based on the first credit limit. Second and third sequence numbers are also described.

Abstract: Provided is a negative electrode plate, comprising: a negative electrode current collector and a first negative electrode active material layer. The first negative electrode active material layer is arranged on at least one surface of the negative electrode current collector, wherein, components of the first negative electrode active material layer comprise, by mass: 30%-70% of a silicon-based material, 15%-40% of a binder and 15%-40% of a conductive agent.

Abstract: The present application provides a negative electrode active material, a secondary battery comprising the same and an electrical device, wherein the negative electrode active material comprises a matrix material and a silicon-based material, the matrix material comprises a plurality of pore structures, at least a part of the silicon-based material is located in pore structures of the matrix material, the silicon-based material comprises a crystalline silicon-based material, a region formed by extending from outer surface of particle of the negative electrode active material to inside of the particle by a distance of 0.5 times a length between any point on the outer surface of the particle of the negative electrode active material and a core of the particle is recorded as an outer region, and a region inside the outer region is recorded as an inner region.

Abstract: Disclosed is a rescue device for adjusting the direction of an automobile falling into water through buoyancy. The rescue device comprises an automobile body, wherein storage cavities are formed in the automobile head and the automobile tail of the automobile body, a first high-pressure quick inflation pump is embedded in the inner wall of the storage cavity, a square buoyancy air bag is folded and stored in the storage cavity, an annular storage box body is embedded in a shell of the automobile body, meanwhile, the annular storage box body is located on the side close to the driving position of the automobile body, and an annular buoyancy air bag is folded and stored in the annular storage box body.

Abstract: Disclosed is a rescue device for adjusting the direction of an automobile falling into water through buoyancy. The rescue device comprises an automobile body, wherein storage cavities are formed in the automobile head and the automobile tail of the automobile body, a first high-pressure quick inflation pump is embedded in the inner wall of the storage cavity, a square buoyancy air bag is folded and stored in the storage cavity, an annular storage box body is embedded in a shell of the automobile body, meanwhile, the annular storage box body is located on the side close to the driving position of the automobile body, and an annular buoyancy air bag is folded and stored in the annular storage box body.