Abstract: A cryogen-free high-temperature superconductor undulator structure is provided. The superconductor undulator structure includes a magnetic core body and a coil structure. The magnetic core body includes a first and a second half magnetic pole arrays that are vertically aligned, a plurality of first winding cores in the first half magnetic pole array, and a plurality of second winding cores in the second half magnetic pole array. The coil structure is wound on the first winding cores and the second winding cores of the magnetic core body. The coil structure includes a plurality of first superconductor tapes in contact with each of the first winding cores and each of the second winding cores, and a plurality of second superconductor tapes, each of the second superconductor tapes is in contact with two adjacent first superconductor tapes. A method of manufacturing a cryogen-free high-temperature superconductor undulator structure is also provided.

Abstract: A cryogen-free high-temperature superconductor undulator structure is provided. The superconductor undulator structure includes a magnetic core body and a coil structure. The magnetic core body includes a first and a second half magnetic pole arrays that are vertically aligned, a plurality of first winding cores in the first half magnetic pole array, and a plurality of second winding cores in the second half magnetic pole array. The coil structure is wound on the first winding cores and the second winding cores of the magnetic core body. The coil structure includes a plurality of first superconductor tapes in contact with each of the first winding cores and each of the second winding cores, and a plurality of second superconductor tapes, each of the second superconductor tapes is in contact with two adjacent first superconductor tapes. A method of manufacturing a cryogen-free high-temperature superconductor undulator structure is also provided.

Abstract: A video interaction method, performed by a terminal, includes: playing an interactive video in a video playing interface, the interactive video comprising a target story node; displaying, based on the interactive video being played to the target story node, an interactive control on a target video picture of the interactive video; receiving a trigger operation on the interactive control; and displaying, based on the trigger operation, interactive content corresponding to the interactive control.

Abstract: A video interaction method, performed by a terminal, includes: playing an interactive video in a video playing interface, the interactive video comprising a target story node; displaying, based on the interactive video being played to the target story node, an interactive control on a target video picture of the interactive video; receiving a trigger operation on the interactive control; and displaying, based on the trigger operation, interactive content corresponding to the interactive control.

Abstract: A sealing structure includes a bottle and a cap sealing the opening of the bottle. The bottle includes a body, an opening formed on the body and a flange protruding from periphery of the opening. The flange has a curved shape having a lower end depressed and connected to periphery of the body to form a neck portion. The cap includes a skirt portion which surrounds the periphery of the body and has a plurality of teeth equally spaced on periphery of the skirt portion and extending longitudinally along the body and a plurality of radial protrusions protruding toward the periphery of the body between every two adjacent teeth. The teeth are pressed by a machine in a lower position thereon so that the radial protrusions abut periphery of the neck portion, and the cap abuts the flange and is conformal with and completely fitted to the flange.

Abstract: A system having a common operations and reset environment and method for using the same are described. In one embodiment, the system comprises one or more hardware resources, client programs stored in memory, and an operations and reset environment shared by the clients. The operations and reset environment implement hardware specific functions to make available the one or more hardware resources to the clients using a common programming interface.