Abstract: The dual-function radar and communication (DFRC) system addresses the problem of radio frequency congestion. Sparse arrays can reduce system cost and increase array aperture by constructing ...

TUCSON, Ariz. (KVOA) - The Pima County Sheriff's Department is asking the community to refrain from using their tip line to share thoughts and prayers for the family of Nancy Guthrie as the search ...

Activists are approached by a federal agent brandishing a firearm, for following agent vehicles, on Tuesday, Feb. 3, 2026, in Minneapolis. (AP Photo/Ryan Murphy) Activists are approached by a federal ...

Abstract: The rigid guide is an important part of the coal mine lifting system, serving a guiding function during the cage operation, making guide deformation detection crucial for ensuring safety in ...