Sentence examples for period of variation from inspiring English sources

She found a correlation between brightness and period of variation.

The absolute brightness of a Cepheid is related to its period of variation, so it is easy to measure.

Of particular interest were the Cepheid variables, whose period of variation is longer or shorter in direct proportion to their luminosity.

Using the newly developed concept that RR Lyrae variable stars accurately reveal their distance by their period of variation and apparent brightness, he found that the clusters were distributed roughly in a sphere whose centre lay in Sagittarius.

The final results indicate that the groundwater levels show a decreasing trend and the period of variation last for about 7 years.

Isotopic sampling through the innermost 0.36 mm of the ET recovered less than half a period of variation (i.e., half an inferred year of growth), which is consistent with the histological estimate for ET growth rate.

In many cases, they have two periods of variation so similar in duration that complex interference or beat phenomena are observed, both in radial velocities and in the shapes of spectral lines.

Trends for permafrost temperature were forecast using large-scale periods of variation in permafrost temperature.

The periods of variation in the geomagnetic indices in Fig. 7 were coincidental with the periods of GPS-TEC enhancement shown in Fig. 8.

The sum of PCB 61 and 23 adsorbed to POM strips (PCB 61pom and PCB 23pom) remained relatively constant throughout the incubation period (coefficient of variation <0.4), with a decrease of PCB 61pom and an increase of PCB 23pom as expected.

The periods of variations with the maximal amplitude has been estimated.