Abstract: In this letter, a novel approach to construct virtual array is proposed by exploiting synthetic aperture technology and the concept of difference coarray for sparse arrays. First, we prove ...

National used car dealership Carvana has bought empty land next to its existing site in unincorporated Placer County, with an ...

Abstract: Air-coupled ultrasonic phased arrays are utilized for many emerging applications and typically consist of bending-plate piezoelectric ultrasonic transducers (PUT). Due to their narrow ...

Greenland may look like a vast, frozen wasteland, but beneath the ice sits one of the most strategically valuable places on Earth. The island holds major reserves of rare earth minerals, uranium, oil, ...