Coupling to n equivalent (spin ) nuclei splits the signal into a n+1 multiplet with intensity ratios following Pascal's triangle as described on the right.

Ellipsometry measures an intensity ratio instead of pure intensities.

The level of DNA methylation at a given loci is determined by the relative intensity ratios of the two dyes.

This "mathematically" observed relationship implies that he had a formula at hand, and a parameterization with the f-number or "intensity ratio" in it.

Multiple cells were scored (usually 10) from the same projection, averages obtained used to provide an intensity ratio.

In 1874, John Henry Dallmeyer called the ratio the "intensity ratio" of a lens:

However, this model does not take into account covalent bonding and, indeed, an intensity ratio of 4:1 is not observed in the spectrum.

Discussion In using intensity ratios for comparison of gene expression levels, a choice must be made about data presentation.

We argue that any procedure which uses raw intensity ratios alone to infer differential expression may be inefficient and thus may lead to excessive errors.

They reported that the intensity ratio of these two polarizations can be about 0.25-1.00.