The O scale Amtrak NextGen Acela (Acela II) from Sunset Models will be offered in two- and three-rail versions.

The Carbon Model Railroad Society held its annual Spring Train Meet and Sale at the Diamond Fire Company Bingo Hall in Walnutport on Sunday. The room was filled with vendors selling train sets, train ...

Abstract: In the operation process of urban rail transit network, it is necessary to grasp the dynamic changes in passenger flow and calculate the real-time passenger flow of the line network during ...

Abstract: In this paper, we investigate the problem of spatial non-stationary channel estimation for near-field extremely large-scale multiple-input multiple-output (XL-MIMO) systems. Specifically, we ...