One result of the analysis in  is that, for general operators K and M, travelling wave solutions of Eq.
In this section, we will briefly review the results that were obtained in  for the instability and stability of travelling wave solutions of Eq.
Zayed: New travelling wave
solutions for higher dimensional nonlinear evolution equations using a generalized (G'/G)-expansion method, J.
The resulting solution (4) can be called a travelling wave in an arbitrarily inhomogeneous media [17,18].
As mentioned above, the exact set of conditions for the existence of such a solution, its physical meaning and interpretation as a travelling wave, as well as its potential applications have been described vaguely and partially ambiguously in classical studies [17,18]].
Experimental studies confirmed that travelling wave
oscillations were obtained on the top surface of the actuator.
In both schemes travelling wave of high frequency elastic oscillations is generated in a piezoceramic ring resulting in elliptic motion of the contact zone.
The effect of friction reduction in presence of ultrasonic vibration and as relevance to travelling wave ultrasonic motors, Elsevier, Ultrasonic 40: 379-383.
4) also admits existence of a travelling wave solution u for a specific choice of h(x):
This travelling wave solution for u (x, t) for the bottom profile given by (5) can be interpreted as a wave propagation without reflection of kinetic energy.
Now we use the results obtained above to obtain a series of exact travelling wave
solutions of Eq.
Purchase of spare Coupled Cavity Travelling Wave
Tubes (CC TWTs) designed for operation in the frequency band 8800 MHz to 9500 MHz having a peak pulsed output power of at least 12 kW and having waveguide input/output ports, e.