Abstract: In this article, a machine-learning-assisted antenna array isolation optimization method for bistatic in-band full-duplex (IBFD) communication systems based on a novel intelligent surface ...

The 11-year program, "the 50 State Quarter program," ran from 1999 to 2008, during which each state was given a specific quarter design. Most U.S. state quarters retain their original value of $0.25.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. At the edge of towns and farmland across the U.S., windowless buildings ...