Abstract: This work introduces a metamaterial (MTM)-integrated space-time coding (STC) transmitting array to detect the multitarget vital sign signals including respiration and heart rates (HR). A ...

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 ...

I have zero coding skills, but I was able to quickly assemble camera feeds from around the world into a single view. Here's how I did it—and what it means for all of us. I'm the Executive Editor, ...

Solopreneurs are finding ways to use AI tools to manage their businesses. Vibe coding tools like Base44 are used by founders to create their own apps. There are some good reasons why founders should ...