Abstract: In this paper, we first propose a new design strategy of 2D Z-complementary array quads (2D-ZCAQs) with feasible array sizes. A 2D-ZCAQ consists of four distinct unimodular arrays satisfying ...
Artemis 2 is the first mission to send astronauts beyond low Earth orbit (LEO) since Apollo 17 did so way back in 1972. The ...
WASHINGTON - A remarkable assemblage of fossils from China is revealing that animal life diversified in Earth's primordial ...
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