A large number of things—some desirable, some not—can happen to a radio wave on its way from one place to another. In the simplest case two antennas (a transmitter and a receiver) are located so that ...

The study of wave propagation in viscoelastic and piezoelectric materials is pivotal in advancing modern sensor and actuator technologies. Viscoelastic materials, which display both viscous flow and ...

It is fitting in a book about wireless communication to look at the phenomena that lets us transfer information from one point to another without any physical medium—the propagation of radio waves. If ...

A research team has discovered a new type of sound wave: the airborne sound wave vibrates transversely and carries both spin and orbital angular momentum like light does. The findings shattered ...

SIAM Journal on Applied Mathematics, Vol. 47, No. 6 (Dec., 1987), pp. 1241-1286 (46 pages) We consider nonadiabatic premixed flame propagation in a long cylindrical channel. A steadily propagating ...