The Decade Volcanoes list is a list of 16 volcanoes worldwide identified by the International Association of Volcanology and Chemistry of the Earthâs Interior (IAVCEI) as being worthy of particular study in light of their history of large, destructive eruptions and proximity to populated areas.
Permanent Virtual Circuit (PVC) A permanent virtual circuit (PVC) is a connection that is permanently established between two or more nodes in frame relay and asynchronous transfer mode (ATM) based networks. It enables the creation of a logical connection on top of a physical connection between nodes that communicate frequently or continuously.
Polyvinyl Chloride Conduit. Rigid polyvinyl chloride conduit (PVC) is a rigid nonmetallic conduit that provides many of the advantages of RMC, while allowing installation in areas that are wet or corrosive. PVC conduit is an inexpensive, easily installed raceway. Itâs lightweight, easily cut, and relatively strong.