The Trump administration has said that the U.S. passports of transgender people must now reflect the sex on their original birth certificate, reversing a decades-old policy.

The Sentinel-6B is the second of two satellites in a $1 billion program to monitor sea levels over a full decade.

Abstract: Power-to-X technology provides an effective approach for renewable energy utilization, which prefers multienergy interaction systems to efficiently manage power flows among various sources ...

Abstract: This article presents a novel design method for a dual-band shared-aperture linear-to-circular polarization (LP-to-CP) converter. High-impedance structures and a bandpass frequency selective ...