Now showing items 1-3 of 3
Effect of Relaxation on Self-Induced Transparency
(American Physical Society, 1978-09-01)
We derive an equation of motion of the Bloch-vector tipping angle and the area theorem in the presence of relaxation. We derive relaxation-dependent shifts in the equilibrium nπ areas. Part of these shifts depends on a ...
Effect of an expansion chamber on the propagation of sound in circular ducts
(American Institute of Physics, 1978-03-01)
The present analysis reveals that the performance of an expansion chamber is greatly affected by the expansion ratio, the sound frequency and to a lesser extent the chamber length. This conclusion was verified experimentally. ...
Natural frequencies of curved elastic arcs
(Acoustical Society of America, 1978-12-01)
A perturbation analysis is presented for calculating the inextensional natural frequencies of curved elastic arcs. Variation of the radius of curvature along the arc length is accounted for by considering the curvature to ...