Abstract: Sparse arrays designed based on fourth-order difference co-array (DCA) can achieve significantly higher uniform degrees-of-freedom (uDOFs). However, most existing fourth-order sparse arrays ...

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 ...

After two centuries of failed attempts, scientists have finally grown dolomite in the lab, cracking a long-standing geological puzzle. They discovered that the mineral’s growth stalls because of tiny ...

Excess oil, sweat and prolonged sun exposure combine to create a host of skin issues including acne, prickly heat, breakouts and more. (Picture: Pexels) Acne and prickly heat worsen in summer due to ...