This book highlights the symmetry properties of acoustic fields and describes the gauge invariance approach, which can be used to reveal those properties. Symmetry is the key theoretical framework of metamaterials, as has been demonstrated by the successful fabrication of acoustical metamaterials. The book first provides the necessary theoretical background, which includes the covariant derivative, the vector potential, and invariance in coordinate transformation. This is followed by descriptions of global gauge invariance (isotropy), and of local gauge invariance (anisotropy). Sections on time reversal symmetry, reflection invariance, and invariance of finite amplitude waves round out the coverage.

This book offers an overview of models, measurements, calculations and examples connecting musical acoustics and music psychology. Indeed, many mathematical formulations that explain musical acoustics can also be used to help predict human auditory perception.

This collection analyses various European rural locations through a relational lens, attending to key aspects and dimensions of the 'relational rurals' such as cooperation, contestation, solidarity and consensus. By observing rural settings in such terms, contributors are able to rethink European rurality from a distinctly relational perspective.

"Introduction to Audio Analysis" serves as a standalone introduction to audio analysis, providing theoretical background to many state-of-the-art techniques. It covers the essential theory necessary to develop audio engineering applications, but also uses programming techniques, notably MATLAB(r), to take a more applied approach to the topic. Basic theory and reproducible experiments are combined to demonstrate theoretical concepts from a practical point of view and provide a solid foundation in the field of audio analysis.

Audio feature extraction, audio classification, audio segmentation, and music information retrieval are all addressed in detail, along with material on basic audio processing and frequency domain representations and filtering. Throughout the text, reproducible MATLAB(r) examples are accompanied by theoretical descriptions, illustrating how concepts and equations can be applied to the development of audio analysis systems and components. A blend of reproducible MATLAB(r) code and essential theory provides enable the reader to delve into the world of audio signals and develop real-world audio applications in various domains.
Practical approach to signal processing: The first book to focus on audio analysis from a signal processing perspective, demonstrating practical implementation alongside theoretical conceptsBridge the gap between theory and practice: The authors demonstrate how to apply equations to real-life code examples and resources, giving you the technical skills to develop real-world applicationsLibrary of MATLAB code: The book is accompanied by a well-documented library of MATLAB functions and reproducible experiments

Control of Noise and Structural Vibration presents a MATLAB (R)-based approach to solving the problems of undesirable noise generation and transmission by structures and of undesirable vibration within structures in response to environmental or operational forces. The fundamentals of acoustics, vibration and coupling between vibrating structures and the sound fields they generate are introduced including a discussion of the finite element method for vibration analysis. Following this, the treatment of sound and vibration control begins, illustrated by example systems such as beams, plates and double walls. Sensor and actuator placement is explained as is the idea of modal sensor-actuators. The design of appropriate feedback systems includes consideration of basic stability criteria and robust active structural acoustic control. Positive position feedback (PPF) and multimode control are also described in the context of loudspeaker-duct and loudspeaker-microphone models. The design of various components is detailed including the analog circuit for PPF, adaptive (semi-active) Helmholtz resonators and shunt piezoelectric circuits for noise and vibration suppression. The text makes extensive use of MATLAB (R) examples and these can be simulated using files available for download from the book's webpage at springer.com. End-of-chapter exercises will help readers to assimilate the material as they progress through the book. Control of Noise and Structural Vibration will be of considerable interest to the student of vibration and noise control and also to academic researchers working in the field. It's tutorial features will help practitioners who wish to update their knowledge with self-study.

Master the latest industry standards and procedures with proven industry leader Mullin/Simmons/ Vigstol's ELECTRICAL WIRING RESIDENTIAL, 21st Edition. In addition to comprehensive, authoritative coverage of the 2023 NFPA 70: National Electrical Code (NEC), this trusted text gives you a thorough grounding in essential electrical theory and applications. Drawing on decades of industry and classroom experience, the authors guide you step-by-step through the critical tasks and responsibilities you can expect as a professional electrician in both new construction and existing homes. Extremely reader-friendly, ELECTRICAL WIRING RESIDENTIAL offers detailed explanations without being overly technical and clearly relates the NEC to real-world installation processes used by today's professionals. Vivid illustrations coordinate with the latest NEC regulations, and foldout plans provide hands-on practice applying code requirements to prepare you for career success.

"Acoustics: Sound Fields and Transducers "is a thoroughly updated version of Leo Beranek's classic 1954 book that retains and expands on the original's detailed acoustical fundamentals while adding practical formulas and simulation methods.

Serving both as a text for students in engineering departments and as a reference for practicing engineers, this book focuses on electroacoustics, analyzing the behavior of transducers with the aid of electro-mechano-acoustical circuits. Assuming knowledge of electrical circuit theory, it starts by guiding readers through the basics of sound fields, the laws governing sound generation, radiation, and propagation, and general terminology. It then moves on to examine: Microphones (electrostatic and electromagnetic), electrodynamic loudspeakers, earphones, and hornsLoudspeaker enclosures, baffles, and waveguidesMiniature applications (e.g., MEMS in I-Pods and cellphones)Sound in enclosures of all sizes, such as school rooms, offices, auditoriums, and living rooms

Numerical examples and summary charts are given throughout the text to make the material easily applicable to practical design. It is a valuable resource for experimenters, acoustical consultants, and to those who anticipate being engineering designers of audio equipment.
An update for the digital age of Leo Beranek's classic 1954 book "Acoustics"Provides detailed acoustic fundamentals, enabling better understanding of complex design parameters, measurement methods, and dataExtensive appendices cover frequency-response shapes for loudspeakers, mathematical formulas, and conversion factors

Written by experts in their area of research, this book has outlined the current status of the fundamentals and analytical concepts, modelling and design issues, technical details and practical applications of different types of sensors and discussed about the trends of next generation of sensors and systems happening in the area of Sensing technology. This book will be useful as a reference book for engineers and scientist especially the post-graduate students find will this book as reference book for their research on wearable sensors, devices and technologies.

Exercise Personal Training 101 provides a message of empowerment for personal trainers who believe in the holistic development of their clients. The key philosophy of the book is to help personal trainers of exercise to empower their clients with good problem- solving and decision-making skills concerning their health and well-being. Good personal trainers become great personal trainers when they practise HELP with their clients and help them to become better problem-solvers and decision makers rather than telling them what to do, by offering sound and scientifically-based information that is personalised and appropriate. Personal exercise training books that address associated issues of the profession are rare and not easily available. Many personal trainers are self-taught, do not have the required qualifications and are motivated by the amount of money that they can make rather than the health and well-being of clients. Readers will learn what makes a good personal trainer and those who are in the profession can benefit by equipping themselves with the knowledge, skills and attitudes that will make them a great exercise personal trainer. Excellent personal trainers can be lifestyle and wellness coaches who are renowned for their great listening skills and high emotional quotient. They exceed client expectations at every opportunity. Special features in the book include concept statements, strategies for action, technology updates, in the news, key points and technical jargon, web-resources and follow-up references. The book is a must-read whether you are starting out in personal training or you are an experienced personal trainer.

The only gluten-free baking book you'll ever need, with delicious recipes that work perfectly every time.

From proper crusty bread, pillowy soft cinnamon rolls and glorious layered cakes to fudgy brownies, incredibly flaky rough puff pastry and delicate patisserie – everything that once seemed impossible to make gluten-free can now be baked by you.

Baked to Perfection begins with a thorough look at the gluten-free baking basics: how different gluten-free flours behave, which store-bought blends work best, and how to mix your own to suit your needs. Covering cakes, brownies, cookies, pastry and bread in turn, Katarina shares the best techniques for the recipes in that chapter, and each recipe is accompanied by expert tips, useful scientific explanations and occasional step-by-step photography to help you achieve gluten-free perfection.

Recipes include classic bakes like super-moist chocolate cake, caramel apple pie and chocolate chip cookies, the softest, chewiest bread, including crusty artisan loaves, baguettes, brioche burger buns and soda bread, and mouth-watering showstoppers like toasted marshmallow brownies, coffee cream puffs and strawberries + cream tart.

This book introduces the fundamental theory of electromagnetic ultrasonic guided waves, together with its applications. It includes the dispersion characteristics and matching theory of guided waves; the mechanism of production and theoretical model of electromagnetic ultrasonic guided waves; the effect mechanism between guided waves and defects; the simulation method for the entire process of electromagnetic ultrasonic guided wave propagation; electromagnetic ultrasonic thickness measurement; pipeline axial guided wave defect detection; and electromagnetic ultrasonic guided wave detection of gas pipeline cracks. This theory and findings on applications draw on the author's intensive research over the past eight years. The book can be used for nondestructive testing technology and as an engineering reference work. The specific implementation of the electromagnetic ultrasonic guided wave system presented here will also be of value for other nondestructive test developers.

This thesis provides an innovative strategy for rail crack monitoring using the acoustic emission (AE) technique. The field study presented is a significant improvement on laboratory studies in the literature in terms of complex rail profile and crack conditions as well as high operational noise. AE waves induced by crack propagation, crack closure, wheel-rail impact and operational noise were obtained through a series of laboratory and field tests, and analyzed by wavelet transform (WT) and synchrosqueezed wavelet transform (SWT). A wavelet power-based index and the enhanced SWT scalogram were sequentially proposed to classify AE waves induced by different mechanisms according to their energy distributions in the time-frequency domain. A novel crack sizing method taking advantage of crack closure-induced AE waves was developed based on fatigue tests in the laboratory. The propagation characteristics of AE waves in the rail were investigated, and Tsallis synchrosqueezed wavelet entropy (TSWE) with time was finally brought forward to detect and locate rail cracks in the field. The proposed strategy for detection, location and sizing of rail cracks helps to ensure the safe and smooth operation of the railway system. This thesis is of interest to graduate students, researchers and practitioners in the area of structural health monitoring.

The book provides readers with a snapshot of recent research and industrial trends in field of industrial acoustics and vibration. Each chapter, accepted after a rigorous peer-review process, reports on a selected, original piece of work presented and discussed at International Conference on Acoustics and Vibration (ICAV2016), which was organized by the Tunisian Association of Industrial Acoustics and Vibration (ATAVI) and held March 21-23, in Hammamet, Tunisia. The contributions, mainly written by north African authors, covers advances in both theory and practice in a variety of subfields, such as: smart materials and structures; fluid-structure interaction; structural acoustics as well as computational vibro-acoustics and numerical methods. Further topics include: engines control, noise identification, robust design, flow-induced vibration and many others.This book provides a valuable resource for both academics and professionals dealing with diverse issues in applied mechanics. By combining advanced theories with industrial issues, it is expected to facilitate communication and collaboration between different groups of researchers and technology users.

Sound-Power Flow: A practitioner's handbook for sound intensity is a guide for practitioners and research scientists in different areas of acoustical science. There are three fundamental quantities in acoustics: sound pressure, sound particle velocity, and sound intensity. This book is about sound intensity and demonstrates the advantages and uses of acoustical sensing compared with other forms of sensing. It describes applications such as: measuring total sound power; directional hearing of humans and mammals; echolocation; measuring sound-power flow in ducts; and uses of non-contact, focused, high-frequency, pulse-echo ultrasonic probes. This book presents computational approaches using standard mathematics, and relates these to the measurement of sound-power flow in air and water. It also uses linear units rather than logarithmic units - this making computation in acoustics simpler and more accessible to advanced mathematics and computing. The book is based on work by the author and his associates at General Motors, the University of Mississippi, and Sonometrics.

In this work, the authors present a fully statistical approach to model non--native speakers' pronunciation. Second-language speakers pronounce words in multiple different ways compared to the native speakers. Those deviations, may it be phoneme substitutions, deletions or insertions, can be modelled automatically with the new method presented here.

The methods is based on a discrete hidden Markov model as a word pronunciation model, initialized on a standard pronunciation dictionary. The implementation and functionality of the methodology has been proven and verified with a test set of non-native English in the regarding accent.

The book is written for researchers with a professional interest in phonetics and automatic speech and speaker recognition.