✦ LIBER ✦

Spectral Analysis of the Acoustic Propagator in a Multistratified Domain

✍ Scribed by Mejdoub Benbernou

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 271 KB
Volume: 225
Category: Article
ISSN: 0022-247X
DOI: 10.1006/jmaa.1998.6032

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

A perturbative method for the spectral a

A perturbative method for the spectral analysis of an acoustic multistratified strip

✍ Elisabeth Croc; Yves Dermenjian 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 220 KB 👁 2 views

We consider the acoustic propagator A"! ) c in the strip "+(x, z)31"0(z(H, with finite width H'0. The celerity c depends for large "x" only on the variable z and describes the stratification of : it is assumed to be in ¸( ), bounded from below by c '0, such that there exists M'0 with c(x, z)"c (z) i

On Spectral Properties of the Acoustic P

On Spectral Properties of the Acoustic Propagator in a Layered Band

✍ Matania Ben-Artzi 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 390 KB

The acoustic propagator is the self-adjoint operator H=&{ } c(x) 2 {, defined in L 2 (Q), where Q R 2 is a band of finite width, given by Q=[(x, z), x # R, 0 z 1]. The wave velocity c depends only on the horizontal coordinate x, and is a measurable bounded function, converging to c \ >0 as x Ä \ .

FINITE ELEMENT ANALYSIS OF THE PROPAGATI

FINITE ELEMENT ANALYSIS OF THE PROPAGATION OF ACOUSTIC WAVES ALONG WAVEGUIDES IMMERSED IN WATER

✍ A.-C. Hladky-Hennion; P. Langlet; M. de Billy 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 399 KB

The finite element approach has previously been used, with the help of the ATILA code, to model the propagation of acoustic waves in waveguides [A.-C. Hladky-Hennion, Journal of Sound and Vibration 194, 119-136 (1996)]. In this paper an extension of the technique to the analysis of the propagation o

A SPECTRAL APPROACH TO THE STUDY OF PROP

A SPECTRAL APPROACH TO THE STUDY OF PROPAGATION PHENOMENA IN CNNs

✍ CIVALLERI, PIER PAOLO; GILLI, MARCO 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 566 KB

The propagation phenomena occurring in cellular neural networks (CNNs) described by a one-dimensional template are investigated using a spectral technique. The CNN is represented as a scalar Lur'e system to which a suitable extension of the describing function technique is applied for predicting the

An application of wavelet bases in the s

An application of wavelet bases in the spectral domain analysis of transmission line discontinuities

✍ Jaideva C. Goswami 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB 👁 2 views

The local support and vanishing moment property of wavelet bases have been recently used to obtain a sparse matrix representation of integral equations in the spatial domain. In this paper, an application of the cubic spline and the corresponding semi-orthogonal wavelets in the spectral domain is pr

Steady state analysis of periodically ti

Steady state analysis of periodically time-varying networks by new developments in the spectral domain

✍ Tohumoğlu, Gülay; Köksal, Muhammet 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 574 KB

The analysis of networks with time-varying elements is more complicated than the analysis of networks with constant elements. Frequency domain analysis methods are well established for the analysis of timeinvariant networks. Since the complete solution can be computed for only a very narrow class of