propagation


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Related to propagation: Plant propagation, Radio propagation

propagation

[‚präp·ə′gā·shən]
(physics)

propagation

The transmission (spreading) of signals from one place to another.
References in periodicals archive ?
The Series 8000 multi-channel bi-directional radio propagation path replicator provides a "test solution in a box" that alleviates field-testing.
The Okumura-Hata model has been largely studied and shown to be suitable for predicting the signal propagation of FTE networks [2], In its primary form, the model distinguishes the distance from the receiver to the transmitter, the frequency used and the effective antenna height, i.
Recently color M-mode propagation velocity of the descending thoracic aorta has been used in the assessment of arterial stiffness as aortic flow propagation (AVP) in several studies (1, 6).
As radio wave propagation in the atmosphere is difficult to describe, most of the created expressions employ empirically determined factors.
Here the propagation profile is important to be analyzed and then determine the exact coupling length.
As a first approximation, much useful information can be inferred from the analysis of wave propagation in a body where the periodic arrangement of layers of different materials is confined within a finite spatial domain [3].
This is a revised and expanded edition of a text in which the basic material of the first edition, namely the use of models initially developed to describe wave propagation in porous media saturated by heavy fluids for the prediction of the acoustical performances of air saturated sound absorbing porous media, has been retained with some modification and new material has been added in order to integrate recent developments in the domain of wave propagation in porous media and practical numerical prediction methods that are widely used by researchers and engineers.
The instantaneous radio-channel quality varies in time, space, and frequency and depends on the detailed structure of propagation paths.
The propagation protocol at FMCC begins with the collection of gravid (pregnant) mussels from field sites that are targeted for augmentation with cultured juveniles.
We've invested significant resources to make the cell propagation process scalable, consistent and cost-efficient," said Isolagen's chairman and interim CEO Frank DeLape.
Propagation through building rubble is a new realm in the study of radio signals.

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