Abstract: Systems and methods for managing a presentation of a dynamic profile photo are provided. In particular, a server may receive contextual information associated with one or more users. The server may determine that the contextual information is consistent with a predetermined contextual action. In some examples, the server may identify a dynamic profile photo associated with the predetermined contextual information; and present, in response to the determination that the contextual information is consistent with the predetermined contextual action, the dynamic profile photo to the one or more users.

Abstract: The present disclosure provides a short-process high-performance forming method of a high-strength aluminum alloy, and use thereof. In the present disclosure, pre-hardening treatment is conducted on an obtained W-temper aluminum alloy sheet blank after a solution treatment and quenching, to obtain a pre-hardened aluminum alloy sheet blank for batch supply. The pre-hardened aluminum alloy sheet blank is subjected to plastic forming, to obtain a component with satisfactory performances. After the pre-hardening treatment, a high-strength aluminum alloy sheet blank forms a GPII zone that is completely coherent with a matrix, and has a room-temperature formability exceeding that off traditional soft sheet blank. Moreover, the GPII zones interact with dislocations during the forming, resulting in planar slips. In this way, large-scale dynamic recovery is more effectively suppressed, thus enhancing a work hardening ability of a formed component.

Abstract: The present disclosure provides a short-process high-performance forming method of a high-strength aluminum alloy, and use thereof. In the present disclosure, pre-hardening treatment is conducted on an obtained W-temper aluminum alloy sheet blank after a solution treatment and quenching, to obtain a pre-hardened aluminum alloy sheet blank for batch supply. The pre-hardened aluminum alloy sheet blank is subjected to plastic forming, to obtain a component with satisfactory performances. After the pre-hardening treatment, a high-strength aluminum alloy sheet blank forms a GPII zone that is completely coherent with a matrix, and has a room-temperature formability exceeding that off traditional soft sheet blank. Moreover, the GPII zones interact with dislocations during the forming, resulting in planar slips. In this way, large-scale dynamic recovery is more effectively suppressed, thus enhancing a work hardening ability of a formed component.

Abstract: An forging process for an aluminum alloy part. The forging process includes the following steps: S1, heating an aluminum alloy blank to a solid solution temperature in a heating device, where, a heating and heat preservation time is determined according to a wall thickness of the aluminum alloy blank and prolonged by 20 min when the wall thickness of the aluminum alloy blank is increased by 1 mm; S2, conducting underaging heat treatment; S3, conducting heating and heat preservation on the aluminum alloy blank obtained after the underaging heat treatment with a forging die at 100-300° C., and preheating a final forging die; S4, conducting forming by isothermal forging on the aluminum alloy blank obtained after the heating and heat preservation in step S3 at 100-300° C.; and S5, conducting cooling, trimming and machining on a forged part obtained in step S4 to obtain the aluminum alloy part.

Abstract: An image acquisition device includes a main body and a camera. A rotating portion is provided on the main body. The camera is arranged on the rotating portion. A knob portion is provided on the rotating portion at a lateral side of the camera in the axial direction. The knob portion can drive the rotating portion to rotate.

Abstract: An image acquisition device includes a main body and a camera. A rotating portion is provided on the main body. The camera is arranged on the rotating portion. A knob portion is provided on the rotating portion at a lateral side of the camera in the axial direction. The knob portion can drive the rotating portion to rotate.