At periods below 1 s, the noise has clear daily and weekly periodicities, which indicate its anthropogenic origin.
I thought we were good at periods of times.
I thought we were brutal at periods of times.
It is at periods of stress that an investor's conviction is really tested.
At such times, he said, you should instead look back at periods much longer than the previous year or two.
Moraine ridges define the margins of a formerly robust glacier at periods when climate was colder than today.
At periods during the game against Wales we thought about swapping him and Adam Lallana over, which we could easily do".
Experts have warned for years that at periods of peak demand, the failure of a single major power line could cause a blackout.
Millions of people were unable to access the site, amid crashes and glitches, and at periods it seems the fiasco would derail the entire healthcare law.
The Grid will also hope to agree contracts with power stations to bring extra reserve energy on stream at periods of peak demand.
But a plant designed to kick in at periods of peak demand rather than a base-load plant like Dabhol could have dealt with this.
