Manipulation Of Sound Properties By Acoustic Metasurface And Metastructure
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Manipulation Of Sound Properties By Acoustic Metasurface And Metastructure
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Author : Jiajun Zhao
language : en
Publisher: Springer
Release Date : 2016-08-06
Manipulation Of Sound Properties By Acoustic Metasurface And Metastructure written by Jiajun Zhao and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-06 with Technology & Engineering categories.
This thesis focuses on the manipulation of sound properties by artificial materials. It elaborates on the fundamental design of acoustic metasurfaces and metastructures as the extension of metamaterials, and their functionality in the manipulation of sound properties. A broad and comprehensive guideline of designing acoustic metasurfaces and metastructures is also provided. Based on the proposed subwavelength metasurfaces and the metastructures with a simplified layout, multiple potential applications are demonstrated. This thesis will appeal to acoustic engineers and researchers who are interested in designing acoustic artificial structures.
Nanomaterials Metamaterials And Smart Materials Synthesis And Characterization
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Author : Kamal I. M. Al-Malah
language : en
Publisher: Bentham Science Publishers
Release Date : 2025-07-02
Nanomaterials Metamaterials And Smart Materials Synthesis And Characterization written by Kamal I. M. Al-Malah and has been published by Bentham Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-07-02 with Technology & Engineering categories.
Nanomaterials, Metamaterials, and Smart Materials: Synthesis and Characterization explores the science and technology behind nanomaterials, metamaterials, and smart materials, focusing on their synthesis, characterization, and applications. It bridges fundamental concepts with cutting-edge research, covering material classification, size-dependent properties, fabrication challenges, and real-world applications in energy, healthcare, and electronics. Societal and ethical considerations are also discussed, providing a well-rounded perspective on material advancements. Key Features: - Comprehensive Coverage: Explores nanomaterials, metamaterials, and smart materials, from foundational principles to advanced applications. - Practical Learning Tools: Includes prerequisite concepts, video resources, and end-of-chapter problems for self-assessment. - Interdisciplinary Approach: Connects physics, chemistry, and engineering to real-world applications. - Extensive References: Provides citations for further exploration and deeper learning.
Handbook Of Noise And Vibration Control
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Author : Malcolm J. Crocker
language : en
Publisher: John Wiley & Sons
Release Date : 2007-10-05
Handbook Of Noise And Vibration Control written by Malcolm J. Crocker and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-10-05 with Technology & Engineering categories.
Two of the most acclaimed reference works in the area of acoustics in recent years have been our Encyclopedia of Acoustics, 4 Volume set and the Handbook of Acoustics spin-off. These works, edited by Malcolm Crocker, positioned Wiley as a major player in the acoustics reference market. With our recently published revision of Beranek & Ver's Noise and Vibration Control Engineering, Wiley is a highly respected name in the acoustics business. Crocker's new handbook covers an area of great importance to engineers and designers. Noise and vibration control is one largest areas of application of the acoustics topics covered in the successful encyclopedia and handbook. It is also an area that has been under-published in recent years. Crocker has positioned this reference to cover the gamut of topics while focusing more on the applications to industrial needs. In this way the book will become the best single source of need-to-know information for the professional markets.
Acoustic Waves In Periodic Structures Metamaterials And Porous Media
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Author : Noé Jiménez
language : en
Publisher:
Release Date : 2021
Acoustic Waves In Periodic Structures Metamaterials And Porous Media written by Noé Jiménez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
This book delivers a comprehensive and up-to-date treatment of practical applications of metamaterials, structured media, and conventional porous materials. With increasing levels of urbanization, a growing demand for motorized transport, and inefficient urban planning, environmental noise exposure is rapidly becoming a pressing societal and health concern. Phononic and sonic crystals, acoustic metamaterials, and metasurfaces can revolutionize noise and vibration control and, in many cases, replace traditional porous materials for these applications. In this collection of contributed chapters, a group of international researchers reviews the essentials of acoustic wave propagation in metamaterials and porous absorbers with viscothermal losses, as well as the most recent advances in the design of acoustic metamaterial absorbers. The book features a detailed theoretical introduction describing commonly used modelling techniques such as plane wave expansion, multiple scattering theory, and the transfer matrix method. The following chapters give a detailed consideration of acoustic wave propagation in viscothermal fluids and porous media, and the extension of this theory to non-local models for fluid saturated metamaterials, along with a description of the relevant numerical methods. Finally, the book reviews a range of practical industrial applications, making it especially attractive as a white book targeted at the building, automotive, and aeronautic industries.
Fundamentals Of Guided Wave Optoelectronic Devices
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Author : William S. C. Chang
language : en
Publisher: Cambridge University Press
Release Date : 2010
Fundamentals Of Guided Wave Optoelectronic Devices written by William S. C. Chang and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Science categories.
Uniquely combines both the optical and electrical properties of guided-wave optoelectronic devices, providing key concepts and practical analytical techniques.
Dielectric Metamaterials
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Author : Igal Brener
language : en
Publisher: Woodhead Publishing
Release Date : 2019-11-13
Dielectric Metamaterials written by Igal Brener and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-13 with Technology & Engineering categories.
Dielectric Metamaterials: Fundamentals, Designs, and Applications links fundamental Mie scattering theory with the latest dielectric metamaterial research, providing a valuable reference for new and experienced researchers in the field. The book begins with a historical, evolving overview of Mie scattering theory. Next, the authors describe how to apply Mie theory to analytically solve the scattering of electromagnetic waves by subwavelength particles. Later chapters focus on Mie resonator-based metamaterials, starting with microwaves where particles are much smaller than the free space wavelengths. In addition, several chapters focus on wave-front engineering using dielectric metasurfaces and the nonlinear optical effects, spontaneous emission manipulation, active devices, and 3D effective media using dielectric metamaterials.
Engineering Noise Control
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Author : David A. Bies
language : en
Publisher: CRC Press
Release Date : 2017-12-01
Engineering Noise Control written by David A. Bies and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-01 with Technology & Engineering categories.
This classic and authoritative student textbook contains information that is not over simplified and can be used to solve the real world problems encountered by noise and vibration consultants as well as the more straightforward ones handled by engineers and occupational hygienists in industry. The book covers the fundamentals of acoustics, theoretical concepts and practical application of current noise control technology. It aims to be as comprehensive as possible while still covering important concepts in sufficient detail to engender a deep understanding of the foundations upon which noise control technology is built. Topics which are extensively developed or overhauled from the fourth edition include sound propagation outdoors, amplitude modulation, hearing protection, frequency analysis, muffling devices (including 4-pole analysis and self noise), sound transmission through partitions, finite element analysis, statistical energy analysis and transportation noise. For those who are already well versed in the art and science of noise control, the book will provide an extremely useful reference. A wide range of example problems that are linked to noise control practice are available on www.causalsystems.com for free download.
Highly Flexible Structures
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Author : Perngjin Frank Pai
language : en
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
Release Date : 2007
Highly Flexible Structures written by Perngjin Frank Pai and has been published by AIAA (American Institute of Aeronautics & Astronautics) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Computers categories.
Accompanying CD-ROM contains ... "computer programs and digital movies of experiments."--Page 4 of cover.
Nonlocality And Willis Coupling In Acoustic Metamaterials And Metasurfaces
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Author : Li Quan (Ph. D.)
language : en
Publisher:
Release Date : 2020
Nonlocality And Willis Coupling In Acoustic Metamaterials And Metasurfaces written by Li Quan (Ph. D.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Acoustic metamaterials and metasurfaces are artificial materials and surfaces composited with meta-atoms and inclusions at the subwavelength scale but behave homogeneously in the macroscopic scale with unusual properties in the manipulation of sound waves. Most of the research in this field has focused so far on the study of the local response of the materials and surface properties but neglected the nonlocality. This dissertation focuses on the study of nonlocal phenomena in acoustics, and explore their unusual abilities in the control and manipulation of sound waves. The dissertation starts with the exploration of pressure-velocity coupling phenomena, also known as Willis coupling or acoustic bianisotropy, in a single subwavelength inclusion and derived general bounds on the Willis response of acoustic scatterers, indicating these bounds can be reached through proper design. A systematic design approach of reciprocal Willis inclusion has been outlined for the realistic implementation of acoustic inclusions with Willis response from zero, mild to maximum. My study shows that reciprocal Willis responses can be mainly attributed to geometrical asymmetries. By breaking the system’s time-reversal symmetry through bias flow, Willis coupling has also been observed in geometry-symmetrical systems. Then, I changed my viewpoint from single inclusion to the collective response of metamaterials at the macroscopic level. By combining moving media with zero-index acoustic propagation, giant bianisotropy and extreme nonreciprocity were achieved in the metamaterials with modest mechanical motion. This special acoustic response was utilized to induce non-reciprocal positive-to-negative sound refraction and the non-reciprocal metamaterial lens which could focus object when the excitation is from a specific side. Finally, the study was extended to metasurface, and explore their unusual properties by considering the strong coupling between neighboring elements. The general impedance relation with the consideration of coupling between neighboring elements was proposed and the mechanism was applied to the design of nonlocal passive metasurfaces which could overcome the limitations of local designs, and achieve unitary efficiency for extreme beam steering. The nonlocal metasurface has also been applied to the design of acoustic hyperbolic metasurface requiring extreme anisotropic impedance which was considered impossible in the local metasurface
Sound Visualization And Manipulation
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Author : Yang-Hann Kim
language : en
Publisher: John Wiley & Sons
Release Date : 2013-08-30
Sound Visualization And Manipulation written by Yang-Hann Kim and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-08-30 with Computers categories.
Unique in addressing two different problems – sound visualization and manipulation – in a unified way Advances in signal processing technology are enabling ever more accurate visualization of existing sound fields and precisely defined sound field production. The idea of explaining both the problem of sound visualization and the problem of the manipulation of sound within one book supports this inter-related area of study. With rapid development of array technologies, it is possible to do much in terms of visualization and manipulation, among other technologies involved with the spatial distribution of sound. This book aims to explore various basic functions for the visualization and manipulation and demonstrate to the reader how these properties determine the quality of visualization and manipulation. The first half of the book introduces some basic and general concepts and theories and the second part of the book explains a number of techniques in sound visualization and manipulation. It offers a unified presentation to two very different topics - sound field visualization techniques based on microphone arrays, and techniques for generation of controlled sound fields using loudspeaker arrays. The authors emphasize the similarities between these two physical problems and between the mathematical methods used for solving them. With extensive examples throughout the book, chapters include: Acoustic Wave Equation and its Basic Physical Measures, Acoustic Wave Equation and its Basic Physical Measures, Basic Theory of Sound Visualization, Acoustic Holography, Beamforming, Basic Theory of Sound Manipulation, Sound Focusing, and Sound Field Reproduction. The first book to combine both the visualization and manipulation of sound technologies in one comprehensive volume Presents the basic concepts using simple one dimensional cases and then extends the concept to three dimensional cases, enabling easier understanding of the fundamental concepts through the use of minimum mathematics Provides a solid understanding of associated physics as well as mathematical concepts for understanding the technologies, addressing diffraction problems in an integrated format by using Kirchhoff-Helmholtz integral equation Uses extensive examples demonstrating the benefits and drawbacks of various applications, including beamforming and acoustic holography A valuable resource forpost/graduate students, acoustic engineers, audio and noise control system developers