Sentence examples for surfaces periodically from inspiring English sources

As wind flows through a designed channel, the membrane moves up and down between copper surfaces periodically, which results in a periodic electrical output signals of the AF-TENG.

Of course it would be silly to proclaim, on the basis of a handful of movies, that some kind of grand role reversal has taken place, that cultural power has shifted toward women, or even that 2012 is yet another "year of the woman," a wishful phrase that surfaces periodically in movies as it does in politics.

To ensure the encapsulant was effectively blocking the release of PCBs into classrooms, wipe samples were collected on the encapsulated surfaces periodically during the longitudinal study.

Like any whale, it must surface periodically to breathe air.

Hints of the old sunny Cameron still surfaced periodically.

The results from the study, known as the Grant Study, have surfaced periodically in the years since.

Allegations of fraud and other improprieties, especially involving small mining and energy companies, surface periodically in Canada.

Rumors of a resumpton of diplomatic relations have surfaced periodically since last July and gained Soviet confirmation in December.

Cetaceans surface periodically to breathe, and the intervals between breaths vary depending on what the animal is doing.

"There has surfaced periodically in the history of biography an interest in what Virginia Woolf called 'the lives of the obscure,' " Ms. Rose explained.

Some marine mammals, like seals, are able to sleep with one side of the brain, while they rely on the other side to surface periodically for air.