A Study of Perforated Panels for Sound Absorption PDF Download
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Author: Lok-yin Peter Law
Publisher:
ISBN:
Category : Acoustical materials
Languages : en
Pages : 194
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Book Description
Author: Lok-yin Peter Law
Publisher:
ISBN:
Category : Acoustical materials
Languages : en
Pages : 194
Get Book Here
Book Description
Author: Mohd Fadzli Bin Abdollah
Publisher: Centre for Advanced Research on Energy
ISBN: 9670257883
Category :
Languages : en
Pages : 510
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Book Description
This e-book is a compilation of papers presented at the Mechanical Engineering Research Day 2017 (MERD'17) - Melaka, Malaysia on 30 March 2017.
Author: Mohd Fadzli Bin Abdollah
Publisher: Centre for Advanced Research on Energy
ISBN: 9672145209
Category :
Languages : en
Pages : 323
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Book Description
This e-book is a compilation of papers presented at the 5th Mechanical Engineering Research Day (MERD'18) - Kampus Teknologi UTeM, Melaka, Malaysia on 03 May 2018.
Author: Mohd Fadzli Bin Abdollah
Publisher: Centre for Advanced Research on Energy
ISBN: 9672145659
Category : Technology & Engineering
Languages : en
Pages : 395
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Book Description
This e-book is a compilation of papers presented at the 6th Mechanical Engineering Research Day (MERD'19) - Kampus Teknologi UTeM, Melaka, Malaysia on 31 July 2019.
Author: Trevor J. Cox
Publisher: CRC Press
ISBN: 0203893050
Category : Architecture
Languages : en
Pages : 495
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Book Description
Absorbers and diffusers are two of the main design tools for altering the acoustic conditions of rooms, semi-enclosed spaces and the outdoor environment. Their correct use is important for delivering high quality acoustics. Unique and authoritative, this book decribes how to effectively measure, model, design and apply diffusers and absorbers. It is a resource for new and experienced acousticians, seeking an understanding of the evolution, characteristics and application of modern diffusers. Absorption is a more established technology and so the book blends traditional designs with modern developments. The book covers practical and theoretical aspects of absorbers and diffusers and is well illustrated with examples of installations and case studies. This new edition brings Acoustic Absorbers and Diffusers up-to-date with current research, practice and standards. New developments in measurement, materials, theory and practice since the first edition (published in 2004) are included. The sections on absorbers are extended to include more about noise control.
Author: Tyler Adams
Publisher: Frame Publishers
ISBN: 9492311011
Category : Technology & Engineering
Languages : en
Pages : 292
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Book Description
Detailing over 100 sound absorbing materials and finishes with case studies of innovative architectural and design applications. Sound Materials is a definitive resource for architects, designers, acousticians, engineers, students and creative professionals – the first publication of its kind to catalogue over 100 sound absorbing materials, detailing inspiring real-world applications. Project profiles include work from leading architects and designers such as OMA, Gehry Partners, Foster + Partners, Ronan and Erwan Bouroullec, and Barber & Osgerby. These projects showcase sound absorbing materials in a variety of interior design and architectural contexts and underscore some of the common acoustical and material challenges presented by specific applications, such as healthcare, education, performing arts, office, retail and industrial environments. Fundamental technical concepts are clearly presented to offer readers with an understanding of how materials absorb sound and how these materials are commonly used to reduce noise and reverberation, inform our sense of space, and improve communication in everyday environments. This book not only surveys an extensive range of materials past, present and emerging, but also highlights many exciting opportunities for future innovation and collaboration at the intersections of acoustical engineering, materials science, design and architecture.
Author: M. L. Munjal
Publisher: John Wiley & Sons
ISBN: 1118443098
Category : Technology & Engineering
Languages : en
Pages : 379
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Book Description
Fully updated second edition of the premier reference book on muffler and lined duct acoustical performance Engine exhaust noise pollutes the street environment and ventilation fan noise enters dwellings along with fresh air. People have become conscious of their working environment. Governments of most countries have responded to popular demand with mandatory restrictions on sound emitted by automotive engines, and a thorough knowledge of acoustics of ducts and mufflers is needed for the design of efficient muffler configurations. This fully updated Second Edition of Acoustics of Ducts and Mufflers deals with propagation, reflection and dissipation/absorption of sound along ducts/pipes/tubes, area discontinuities, perforated elements and absorptive linings that constitute the present-day mufflers and silencers designed to control noise of exhaust and intake systems of automotive engines, diesel-generator sets, compressors and HVAC systems. It includes equations, figures, tables, references, and solved examples and unsolved exercises with answers, so it can be used as a text book as well as a reference book. It also offers a complete presentation and analysis of the major topics in sound suppression and noise control for the analysis and design of acoustical mufflers, air conditioning and ventilation duct work. Both the fundamentals and the latest technology are discussed, with an emphasis on applications. Deals with reactive mufflers, dissipative silencers, the frequency-domain approach, and the time-domain approach. Fully updated second edition of the premier reference book on muffler and lined duct acoustical performance, in one complete volume Presents original new research on topics including baffle silencers and louvers, 3D analytical techniques, and flow-acoustic analysis of multiply-connected perforated-element mufflers Includes a general design procedure to help muffler designers in the automotive industry, exhaust noise being a major component of automobile and traffic noise pollution Written by an expert with four decades’ experience in teaching to graduate students, publishing extensively in reputed international journals, and consulting with industry for noise control as well as designing for quietness
Author: Khadija Baba
Publisher: Springer Nature
ISBN: 3031493451
Category : Science
Languages : en
Pages : 488
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Book Description
The industrial acceleration intensifies the negative environmental impacts, mainly in some very sensitive geographical areas. Environmental problems like water stress, deadly floods, scarcity of building materials, and prolonged periods of drought affect southern countries, including African nations. This book comprises the peer-reviewed proceedings of the fourth scientific conference on geosciences and environmental management (GeoME'4), held in Salé, Morocco, on June 22–24, 2023. The book interests all researchers, practitioners, and students in geosciences, the environment, and water management. The book delivers a comprehensive overview of the latest research covering the following aspects of green technologies for sustainable water and wastewater management: nature-based solutions in the water cycle and advanced technologies in geosciences, geotechnics, and the environment. Additionally, it features six keynote speakers by international experts, providing valuable insights and further enhancing its value as a comprehensive resource on the following topics: Water management Environmental engineering Geosciences and geotechnical engineering
Author: J.F. Allard
Publisher: Springer Science & Business Media
ISBN: 9401118663
Category : Technology & Engineering
Languages : en
Pages : 296
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Book Description
This book has grown out of the research activities of the author in the fields of sound propagation in porous media and modelling of acoustic materials. It is assumed that the reader has a background of advanced calculus, including an introduction to differential equations, complex variables and matrix algebra. A prior exposure to theory of elasticity would be advantageous. Chapters 1-3 deal with sound propagation of plane waves in solids and fluids, and the topics of acoustic impedance and reflection coefficient are given a large emphasis. The topic of flow resistivity is presented in Chapter 2. Chapter 4 deals with sound propagation in porous materials having cylindrical pores. The topics of effective density, and of tortuosity, are presented. The thermal exchanges between the frame and the fluid, and the behaviour of the bulk modulus of the fluid, are described in this simple context. Chapter 5 is concerned with sound propagation in other porous materials, and the recent notions of characteristic dimensions, which describe thermal exchanges and the viscous forces at high frequencies, are introduced. In Chapter 6, the case of porous media having an elastic frame is considered in the context of Biot theory, where new topics described in Chapter 5 have been included.
Author: Sanjay Yadav
Publisher: Springer Nature
ISBN: 9819945941
Category : Technology & Engineering
Languages : en
Pages : 225
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Book Description
This book presents the select proceedings of the 11th National Conference on Advances in Metrology (AdMet 2022). The book highlights and discusses the recent technological developments in the areas of fundamental and quantum metrology, physico-mechanical and electrical metrology, time and frequency metrology, materials metrology, industrial and legal metrology, digital transformation in metrology, among others. This book is aimed for those engaged in conformity assessment, quality system management, calibration, and testing in all sectors of industry. The book is a valuable reference for metrologists, scientists, engineers, academicians, and students from research institutes and industrial establishments to explore the future directions and research in the areas of sensors, advance materials, measurements, and quality improvement.
