Chemical weapons can be categorized by their physical characteristics, such as lethality, persistency, mode of action on the human body, and physical state (i.e., gas, liquid, or solid) when being delivered.
Chemical agents also have varied levels of persistency.
This difference in persistency may lead to a different strategic or tactical use of each agent in wartime.
One striking feature of both coal and marine cyclothems is the tremendous lateral persistency of beds within the sequence.
The exhaust valves are allowed to remain open for a few degrees of crank rotation after the inlet ports have been covered by the rising piston on the compression stroke, thus allowing the persistency of flow to scavenge the cylinder more thoroughly.
"Insistency, persistency and consistency, that's our formula.
The primary assumptions that have changed since the initial pricing of these products include: interest rates, persistency, morbidity and mortality experience, which have not materialized as expected".
At last, with business-like persistency, he reached the Square, and made diagonally for the number 10.
"These ups and downs undermine consistency and persistency of purpose.
But the reception to Sean Penn's fifth film as director easily beat all three in both decibels and persistency.
From the early flicker-books through to the sophisticated line drawings of Walt Disney, they all rely on persistency of vision; the simple fact that when film made that way is projected at the normal speed of 25 frames per second, it appears as a continuously moving picture.
