Sentence examples for ground spectra from inspiring English sources

Corresponding shifts also appear in the ground spectra.

The ground spectra manifest a broad band activity.

A similar correspondence between IMF and ground spectra are seen in other events discussed later.

However, the 3.2 mHz peak is not evident in the ground spectra.

Ground spectra are plotted separately for stations in the morning and afternoon sectors (top and third panels).

Ground spectra are shown for the morning (top panel) and afternoon sides (second panel from the top), respectively.

But in most of the U.S., wire is thick on the ground, spectrum is hard to come by, and trees, hills and buildings tend to block reception.

Two years ago, Aircell, based in Itasca, Ill., and Louisville, Colo., paid $31 million to the federal government for a batch of air-to-ground spectrum that was originally used for in-flight seat-back phones –- an expensive service that passengers largely ignored.

That same year another firm, now called Gogo, purchased a thin sliver of air-to-ground spectrum in the United States, and began service in 2008, deploying dozens of ground stations that point upwards at aircraft, rather than downwards at people on the ground, and use a variant of 3G mobile-data technology called EV-DO.

A comparison of the obtained theoretical results with the published experimental data shows that analytical techniques based on the simplified quarter car vehicle model are capable of producing ground vibration spectra of heavy military vehicles that reproduce basic properties of experimental spectra.

Like most other cases, the predicted horizontal ground motion spectra at a reference site are generally comparable to those observed.