Focusing characteristics of time-reversed electromagnetic waves in rotating metal wire arrays are investigated in this paper. A system model consisting of two metal wire arrays and a time reversal ...

The Michigan Occupational Safety and Health Administration said the unnamed 46-year-old worker was killed after a metal file cabinet fell on top of them.

The Michigan Occupational Safety and Health Administration said the unnamed 46-year-old worker was killed after a metal file cabinet fell on top of them. Emergency services were called, and the ...