Abstract: Near-field wideband beam training is critical for high-throughput communications in extremely large-scale multiple-input-multiple-output (XL-MIMO) systems, particularly in high-speed railway ...

Wildlife researchers have found an unconventional way to help control invasive Burmese pythons in the Florida Everglades – by using one of the snakes’ favorite prey. Opossums are a key food source for ...

“USA250: The Story of the World’s Greatest Economy” is a yearlong WSJ series examining America’s first 250 years. Read more about it from Editor in Chief Emma Tucker. Imagine the first convincing ...