The performance of a 5-GHz-spaced, 16-channel frequency selection switch (FS-SW) for optical frequency division multiplexing (FDM) distribution systems is described. The silica waveguide-type FS-SW is ...

Histograms of e-cigarette use were visually inspected for current, former and never smokers with any 30-day e-cigarette use. Different definitions of current use were compared. Results Use ≤5 days in ...

A survey of more than 1,000 people by St John Ambulance revealed more than half do not know the difference between heatstroke, which requires a 999 call, and heat exhaustion, which can be treated ...

The high penetration of inverter-based resources (IBRs) in power systems has brought challenges to system frequency stability due to reduced inertia. The conventional method for frequency stability ...