2 Beijing Laboratory of Cardiovascular Precision Medicine, Beijing Municipal Education Commission, Beijing, China Background Rheumatic mitral valve disease remains a major global health challenge.

Abstract: The concept of dual-polarized reconfigurable reflectarray (RRA) featuring dual-polarized beam control is proposed and demonstrated using a dual-channel programmable metasurface. The p-i-n ...

Simple is good. That’s the basic concept driving the flush-flume sand separation system at 3-D Dairy, a 1,350-cow operation in Malone in east central Wisconsin. The facility, built by brothers John, ...