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Acoustics of Fluid Media 1 is intended for undergraduate students and engineering students, as well as graduate students and professionals in the industry who are increasingly faced with the need to consider acoustic constraints in the design of new products. The physical principles and theoretical foundations of acoustics in fluids are first developed, including reflection and refraction of plane and spherical waves. The book then introduces notions of signal processing applied to sound waves, followed by radiation from surface or volume acoustic sources and the use of Green’s functions, as well as the description of diffraction and scattering phenomena. The final chapters are devoted to sound propagation in ducts and room acoustics. Each chapter is accompanied by a limited number of exercises, ranging from the simple application of formulas to problems requiring a more advanced theoretical analysis or a numerical solution. Throughout the book, the theoretical results are illustrated with numerous figures obtained from measurements or numerical simulations resulting from the evaluation of complex formulas or from the use of a finite element solver.
Se recoge en este libro una selección de las contribuciones presentadas a varios seminarios científicos que se organizaron en el Instituto de Acústica del CSIC durante los años 2004 y 2005. Esas contribuciones tratan un amplio abanico de temas, desde las estrategias para medir y controlar el ruido en la ciudad de Madrid hasta la técnica de toma de imágenes con fines médicos basada en el comportamiento elástico de los tejidos humanos. Otros temas -como los sistemas de sensores de onda acústica de superficie, el control de ruido activo, o los dispositivos para la inspección sanitaria de productos de uso cotidiano por medio de ultrasonidos- constituyen buenos ejemplos de la utilización de sistemas acústicos en el mundo industrial.
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This book explores the various ways in which different communities and peoples in Oceania respond to and engage with recent environmental challenges and concurrent socio-political reconfigurations. Based on empirical research, the book discusses topics such as belonging, emotional attachment to land, and new forms of environmental knowledge. The theoretical framework of the book is inspired by current debates among diverse conceptualisations of the environment and thus, of various ways of knowing, making sense of, and interacting with worlds. With this focus in mind, the book provides new insights into recent socio-cultural and environmental dynamics in the Pacific.