All periodic signals can be described in terms of amplitude and phase. We all learned that in basic circuit theory. You surely recall having to calculate signal’s phase change when it passed through a ...
Ruddy Kurnia, a doctoral student at the Netherlands' University of Twente has developed mathematical models for very fast calculation of the wave behaviour. For very fast calculation of the wave ...
Negative refraction of elastic waves has been studied and experimentally demonstrated in three- and two-dimensional phononic crystals, but Bragg scattering is impractical for low-frequency wave ...
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