Abstract: This paper proposes and experimentally validates a novel concentric circle (CC) model for indoor WiFi sensing. By setting the transmitter and receiver together, the perception model becomes ...

Discover a simple trick to draw a perfect circle without using a compass. This easy method is surprisingly accurate and works consistently with everyday tools you already have at home. Armed man ...

A Circle K store manager in Scottsdale, Arizona, is being sued over a $12.8 million lottery ticket he allegedly bought from his own store — after confirming it was a winner. Circle K filed the lawsuit ...

There are more than 25 million additional cards now in circulation compared with two decades ago, UK Finance said. This weekend marks 20 years since chip and pin fully replaced signatures for in-store ...