The idea of controlling wave propagation — directing it to flow ... reflected waves can cause interference, garbling signals or reducing efficiency. Ten years ago, researchers managed to ...

Diffraction of a low frequency sound wave around a barrier. Note that the barrier does not create a sound shadow in the area of the lower right-hand corner. Barriers not built for acoustical purposes ...

The discovery of asymmetric diffraction in acoustic waves opens new avenues for innovative communication devices, impacting ...

Interference can arise with one source of waves where the waves travel different distances before meeting. The difference in the distance travelled (the path difference) must be a full number of ...

an adaptive array antenna was used in the construction of an interference elimination system for a broadcast- wave relay station. Future work will involve the construction of efficient low-cost ...

Until recently, however, it has been nearly impossible to predict the propagation patterns of nonlinear (i.e., chaotically moving) acoustic and other waves because of the high computational ...

Refraction of sound waves by two layers of air at different ... See: CANCELLATION, INTERFERENCE. Ref.: Wiener and Keast, "Experimental Study of the Propagation of Sound Over Ground," Journal of the ...