Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

Floral arrangements crafted from carefully-folded, colorful bank notes, had become a popular symbol of love in Nairobi. By Matthew Mpoke Bigg and Brian O. Otieno Photographs by Ed Ram Reporting from ...

Whether your perfect Valentine's celebration is a night out with the girls, treating yourself to a new tattoo, or a cozy date at the planetarium, there's no shortage of Valentine's- and ...