In recent years, reconfigurable intelligent surface (RIS) assisted localization has garnered significant attention. However, there has been relatively limited research on RIS assisted user tracking, ...

LAFD rescued a man trapped in a manhole in downtown Los Angeles amid traffic disruptions and a concurrent LAPD assault investigation.

Pressure to eliminate port call delays emerged as a key factor in the deaths and injuries of some 200 people a year while working in enclosed spaces on ships, according to a new study.