12.5 Acres Ferguson, Wilkes County, North Carolina. $68,000. Beautiful property located near the base of the Blue Ridge Mountains! Paved road frontage with mature timber, a nice stream, pasture land, and views of the Blue Ridge.
Polybenzimidazole fiber. Polybenzimidazole (PBI, short for poly[2,2â-(m-phenylen)-5,5â-bisbenzimidazole]) fiber is a synthetic fiber with a very high melting point. It has exceptional thermal and chemical stability and does not readily ignite.
Letâs start with frequently used naming conventions. Pulse Width (PW) is the elapsed time between the rising and falling edges of a single pulse. To make this measurement repeatable and accurate, we use the 50% power level as the reference points. Pulse Repetition Interval (PRI) is the time between sequential pulses.