Abstract: A novel higher-dimensional definition for Costas arrays is introduced. This definition works for arbitrary dimensions and avoids some limitations of previous definitions. Some non-existence ...

Abstract: This paper presents a coding approach for achieving omnidirectional transmission of certain common signals in massive multi-input multi-output (MIMO) networks such that the received power at ...

Sparse computing enables leaner, faster AI ...

This paper provides a policy-oriented overview of the safeguarding of intangible cultural heritage (ICH) in China, examining it as a living carrier of national identity. While ICH is deeply rooted in ...

Some innovations in physics come from entirely new technologies, others from fresh theoretical insights. Others still take ...

MEMS devices can be optically characterized using several different measurement techniques. This follows the various ...

Acoustic metamaterials are a fast-evolving family of materials which manipulate sound waves in ever more advanced ways. Now, a team led by Changqing Xu at Nanjing Normal University in China has ...