The risk control hierarchy (RCH) in the ANSI-Z10 standard provides electrical safety professionals with an excellent roadmap for setting the rig ht safety objectives that result in the reduction of ...

It is well known that firefighting activities can expose firefighters to many occupational hazards and is associated with long-term health risks including cancer. In order to mitigate these risks, the ...

Because most of the dynamic systems that we design, from machines to governments, are based on hierarchical control, it is difficult to imagine a system in which the parts use only local information ...