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Author : Yuan Zhang
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (332 download)
Download or read book Leaky Rayleigh Wave Scattering from Elastic Media with Random Microstructures written by Yuan Zhang and published by . This book was released on 1994 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yuan Zhang
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (35 download)
Download or read book Elastic Wave Scattering from Bounded Media with Random Microstructures written by Yuan Zhang and published by . This book was released on 1995 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: A first-order Born approximation is utilized to solve the direct and inverse scattering problems of bounded infinite media with random microstructures. The inhomogeneities of the media properties due to their microstructures are assumed to be small. Relatively simple relations are obtained between the mean-square incoherently singly-scattered signal intensities and the spectral density functions of the media inhomogeneities. These simple formulas can be applied straightforwardly to the nondestructive characterization of material microstructures. Special cases of scattering from an infinite random fluid layer, a flat solid plate and a solid half-space immersed in fluid are studied in the present work. The analyses are valid for materials with random microstructures in general, but our interest here is in polycrystalline materials and detailed analytical and numerical results are given for cubic crystal aggregates. Although the first Born single-scattering approximation is not valid for infinite media in general, we find that it can be applied to some cases, such as those studied here, with satisfaction. It is proved that the validity of the first Born approximation is guaranteed for infinite-layer scattering problems as long as the thickness of the layer is small. As for the case of surface wave scattering from a solid half-space, the applicability of the first Born approximation is evident from the fact that leaky surface wave propagation is a very localized phenomenon. Resonances can occur in the cases investigated here when measuring the scattered signal near some incoherent directions. Due to resonant phenomena one can achieve relatively strong incoherently scattered signals which are otherwise very weak.
Author :
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.3/5 (243 download)
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1987 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 408 pages
Book Rating : 4.:/5 (31 download)
Download or read book Theoretical and Applied Mechanics Report written by and published by . This book was released on 1996 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bart A. van Tiggelen
Publisher : Springer Science & Business Media
ISBN 13 : 9401002274
Total Pages : 637 pages
Book Rating : 4.4/5 (1 download)
Download or read book Wave Scattering in Complex Media: From Theory to Applications written by Bart A. van Tiggelen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of lectures on a variety of modern subjects in wave scattering, including fundamental issues in mesoscopic physics and radiative transfer, recent hot topics such as random lasers, liquid crystals, lefthanded materials and time-reversal, as well as modern applications in imaging and communication. There is a strong emphasis on the interdisciplinary aspects of wave propagation, including light and microwaves, acoustic and elastic waves, propagating in a variety of "complex" materials (liquid crystals, media with gain, natural media, magneto-optical media, photonic and phononic materials, etc.). It addresses many different items in contemporary research: mesoscopic fluctuations, localization, radiative transfer, symmetry aspects, and time-reversal. It also discusses new (potential) applications in telecommunication, soft matter and imaging.
Author : D. W. Rivers
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (227 download)
Download or read book Random Scattering Effects on Rayleigh-Wave Amplitudes and Phases written by D. W. Rivers and published by . This book was released on 1979 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluctuations in the amplitudes and phases of 20-sec Rayleigh waves were measured for ten earthquakes recorded at NORSAR and for two earthquakes recorded at an 1100-km long linear array in the Southwestern United States. These measurements were compared with the prediction of Chernov (1962), who analyzed the scattering of elastic waves by random inhomogeneities along the source-to-receiver path. Use of this theory enabled the amplitude and phase fluctuations to be related to a statistical description of the random scattering medium. As predicted, it was found that the fluctuations were correlated over a longer distance in the direction parallel to the propagation of the wavefront than in the direction perpendicular to it. This implies by reciprocity that relative Ms within a test site would be better determined at a station in line with the vector between two events than by a station perpendicular to the vector. Certain measurements were incompatible with Chernov's theory, however; these discrepancies may be attributable to multipath arrivals and/or large-amplitude scattering for which the Born approximation is not valid.
Author : Ping Sheng
Publisher : World Scientific
ISBN 13 : 9814507644
Total Pages : 649 pages
Book Rating : 4.8/5 (145 download)
Download or read book Scattering And Localization Of Classical Waves In Random Media written by Ping Sheng and published by World Scientific. This book was released on 1990-04-01 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past decade has witnessed breakthroughs in the understanding of the wave localization phenomena and its implications for wave multiple scattering in inhomogeneous media. This book brings together review articles written by noted researchers in this field in a tutorial manner so as to give the readers a coherent picture of its status. It would be valuable both as an up-to-date reference for active researchers as well as a readable source for students looking to gain an understanding of the latest results.
Author : V. V. Varadan
Publisher : Technomic Publishing Company
ISBN 13 :
Total Pages : 974 pages
Book Rating : 4.:/5 (89 download)
Download or read book Multiple Scattering of Waves in Random Media and Random Rough Surfaces written by V. V. Varadan and published by Technomic Publishing Company. This book was released on 1987 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. A. Ogilvy
Publisher : CRC Press
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (318 download)
Download or read book Theory of Wave Scattering From Random Rough Surfaces, written by J. A. Ogilvy and published by CRC Press. This book was released on 1991 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of theories developed for the study of acoustic, elastic and electromagnetic wave scattering from randomly rough surfaces, and a comprehensive summary of the latest techniques. Different theories are illustrated by experimental data.With applications in radar, sonar, ultrasonics and optics this book will be invaluable to graduate students, researchers and engineers.
Author : Jon M. Lufrano
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (31 download)
Download or read book Enhanced Hydrogen Concentrations Ahead of Rounded Notches and Cracks-- Competition Between Plastic Strain and Hydrostatic Constraint written by Jon M. Lufrano and published by . This book was released on 1996 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Akira Ishimaru
Publisher : Elsevier
ISBN 13 : 0323158323
Total Pages : 272 pages
Book Rating : 4.3/5 (231 download)
Download or read book Wave Propagation and Scattering in Random Media written by Akira Ishimaru and published by Elsevier. This book was released on 2013-06-11 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wave Propagation and Scattering in Random Media, Volume 1: Single Scattering and Transport Theory presents the fundamental formulations of wave propagation and scattering in random media in a unified and systematic manner, as well as useful approximation techniques applicable to a variety of different situations. The emphasis is on single scattering theory and transport theory. The reader is introduced to the fundamental concepts and useful results of the statistical wave propagation theory. This volume is comprised of 13 chapters, organized around three themes: waves in random scatterers, waves in random continua, and rough surface scattering. The first part deals with the scattering and propagation of waves in a tenuous distribution of scatterers, using the single scattering theory and its slight extension to explain the fundamentals of wave fluctuations in random media without undue mathematical complexities. Many practical problems of wave propagation and scattering in the atmosphere, oceans, and other random media are discussed. The second part examines transport theory, also known as the theory of radiative transfer, and includes chapters on wave propagation in random particles, isotropic scattering, and the plane-parallel problem. This monograph is intended for engineers and scientists interested in optical, acoustic, and microwave propagation and scattering in atmospheres, oceans, and biological media.
Author :
Publisher :
ISBN 13 :
Total Pages : 566 pages
Book Rating : 4.3/5 (91 download)
Download or read book Applied Science & Technology Index written by and published by . This book was released on 1996 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 918 pages
Book Rating : 4.:/5 ( download)
Download or read book Acoustical Physics written by and published by . This book was released on 1997 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt: Russian academic journal in the field of acoustics. The journal publishes scientific reviews, original papers, short communications, letters to the editor and current events. It covers theoretical and experimental aspects of physical, technical, and biological acoustics. This journal presents results of research conducted at the institutes of the Russian Academy of Sciences, and at universities and research establishments in Russia and abroad.
Author : University of Illinois at Urbana-Champaign. Engineering Documents Center
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (31 download)
Download or read book Engineering Documents Center Index written by University of Illinois at Urbana-Champaign. Engineering Documents Center and published by . This book was released on 1994 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mohan Munasinghe
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.:/5 (615 download)
Download or read book Numerical Solutions for Acoustic Rayleigh Wave Scattering in Discontinous Media written by Mohan Munasinghe and published by . This book was released on 1973 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel N. Riahi
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (31 download)
Download or read book Effects of Centrifugal and Coriolis Forces on Chimney Convection During Alloy Solidification written by Daniel N. Riahi and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry Hemin Yang
Publisher :
ISBN 13 :
Total Pages : 436 pages
Book Rating : 4.:/5 (417 download)
Download or read book Wave Scattering and Refraction from a Random Rough Interface Between Two Elastic Solids written by Henry Hemin Yang and published by . This book was released on 1991 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
