Abstract: This article proposes a dual-mode microstrip sensor based on a bridge-type folded complementary split-ring resonator (BF-CSRR) structure. The sensor combines high sensitivity with low cost ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...

On shelves at a Humanetics facility in Huron, Ohio, skulls stare from their eyeless sockets, shiny and silver. Around a corner, a rack is filled with squishy, peach-toned arms, legs, torsos and butts.

When faced with having to use deadly force in response to a threat, peace officers are taught to keep shooting until the threat is eliminated. And although it’s not a very smart idea, there are some ...