A new study in PNAS introduces a mathematical model that quantifies how different systems, from cells to organizations, ...
Abstract: The azimuth ambiguity phenomenon has widely existed in synthetic aperture radar (SAR). The false targets introduced by the ambiguity phenomenon may seriously affect the interpretation of SAR ...
Abstract: More than three miles above the Arizona desert, an F-16 student pilot experienced a gravity-induced loss of consciousness, passing out while turning at nearly 9Gs (nine times the force of ...