Flow visualization of an N95 respirator with and without an exhalation valve using schlieren imaging and light scattering.

Phys Fluids (1994) · 2020 · PMC7684679 · PMID 33244212

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a clear trendno p-value reported

The point here is to show that there is a clear trend between these three examples, and image processing can provide useful insights that help support the qualitative fluid flow visualization experiments.

also in 19,460 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.