Abstract: We present an electronically reconfigurable antenna array offering low probability of intercept/detect (LPI/LPD) and secure communications capabilities simultaneously at the physical layer.

The “new era” for Chesapeake-based value retailer Dollar Tree has already begun. “The world has changed: Customers are more digitally connected, costs are higher, competition is shifting, and tariffs ...

Weather patterns like heat waves or dry spells can sometimes stall over one region. A new University of Arizona study found clues about why. The researchers analyzed tree rings from centuries-old ...

Abstract: In 1985, Diener and his colleagues presented an objective evaluation of life satisfaction using a questionnaire composed of five items: ideal, condition, satisfaction, acquisition, and ...