tailieunhanh - ACOUSTIC WAVES – FROM MICRODEVICES TO HELIOSEISMOLOGY_1

The subject of acoustic waves might easily be considered a mature one, quite specialized, with narrow and circumscribed fields of interest and of application. The present book is an evidence of the opposite: it witnesses how the concept of acoustic wave, a collective displacement of matter which perturbs an equilibrium configuration, is a pervasive concept, which emerges in very different fields. This type of phenomena can be analyzed from different points of view, it can be exploited in different ways, and is the object of active investigations. The present book, far from pretending to give an exhaustive overview of the subject, offers instead a sampling of various points. | ACOUSTIC WAVES - FROM MICRODEVICES TO HELIOSEISMOLOGY Edited by Marco G. Beghi Acoustic Waves - From Microdevices to Helioseismology Edited by Marco G. Beghi Published by InTech Janeza Trdine 9 51000 Rijeka Croatia Copyright 2011 InTech All chapters are Open Access distributed under the Creative Commons Attribution license which permits to copy distribute transmit and adapt the work in any medium so long as the original work is properly cited. After this work has been published by InTech authors have the right to republish it in whole or part in any publication of which they are the author and to make other personal use of the work. Any republication referencing or personal use of the work must explicitly identify the original source. As for readers this license allows users to download copy and build upon published chapters even for commercial purposes as long as the author and publisher are properly credited which ensures maximum dissemination and a wider impact of our publications. Notice Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials instructions methods or ideas contained in the book. Publishing Process Manager Sandra Bakic Technical Editor Teodora Smiljanic Cover Designer Roko Kerovec Image Copyright Bocos Benedict 2011. Used under license from First published October 2011 Printed in Croatia A free online edition of this book is available at Additional hard copies can be obtained from orders@ Acoustic Waves - From Microdevices to Helioseismology Edited by Marco G. Beghi p. cm. ISBN 978-953-307-572-3 IkfTE IJ OPEN ACCESS INI Lvrl PUBLISHER INTECH open free online editions of