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Covering analytical research in aerial and underwater acoustics, this new scholarly work treats the interaction of acoustic waves with obstacles which may be rigid, soft, elastic, or characterized by an impedance boundary condition. The approach is founded on asymptotic high frequency methods which are based on the concept of rays.
Despite the progress in the field of numerical methods for diffraction problems, ray methods still remain the most useful approximate methods of analyzing wave motions. They provide not only considerable physical insight and understanding of diffraction mechanisms but they are also able to treat objects which are still too large in terms of wavelength to fall in the realm of numerical analysis.
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What is acoustics? What is noise? How is sound measured? How can the vehicle noise be reduced using sound package treatments? Pranab Saha answers these and more in Acoustical Materials.
Acoustics is the science of sound, including its generation, propagation, and effect. Although the propulsion sources of internal combustion engine (ICE) vehicles and electric motor-powered vehicles (EV) are different and therefore their propulsion noises are different, both types of vehicles have shared noise concerns:
Vehicle noise and vibration issues have been there almost from the inception of vehicle manufacturing. The noise problem in a vehicle is very severe and is difficult to solve only by modifying the sources of noise and vibration. Sound package treatments address the noise and vibration issues along the path to reduce in-cabin noise. In Acoustical Materials, readers will grasp the science of reducing sound and vibration using sound absorbers, sound barriers, and vibration dampers.
Sound provides information on the proper operation of the vehicle, but if unchecked, can detract from the consumer experience within the vehicle and create noise pollution outside the vehicle. Acoustical Materials provides essential information on the basics of sound, vehicle noise source, how these are measured, how vehicle owners perceive sound, and ultimately, how to solve noise problems in vehicles using sound package materials.
Acoustics is a major concern in many long spaces, such as road or railway tunnels, underground/railway stations, corridors, concourses and urban streets. The specific problems of such irregularly shaped spaces, ranging from noise pollution in streets and tunnels to poor speech intelligibility of public address systems in railway stations are not dealt with by classic room acoustic theory.
This state-of-the-art exposition of acoustics of long spaces presents the fundamentals of acoustic theory and calculation formulae for long spaces as well as giving guidelines for practical design with extensively illustrated work. A self contained book, it will prove an invaluable addition to this field as existing books deal mainly with regularly-shaped spaces.
Beginning with a description of fundamental concepts, basic theories and modelling techniques relating to general room acoustics, the book moves on to theories and computer models for long spaces, including a method for predicting train noise in underground stations and an overall model for practical prediction. Design guidelines are presented with a large number of illustrations. Chapters on long enclosures and urban streets based on parametric studies using the theoretical/computer models, are followed by a description of a series of physical scale-model measurements on the effectiveness of strategic architectural acoustic treatments. The book concludes with a discussion of speech intelligibility in long enclosures based on a series of articulation tests including the differences in intelligibility between three different languages.
Acoustics of Long Spaces will be essential reading for those involved with a large range of disciplines – architecture, urban planning, building services, civil engineering, environmental engineering, transport engineering, mechanical engineering and electrical engineering.
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The current orthodoxy is that 'knowledge' is the most powerful resource for organisational success. So how can managers develop the appropriate knowledge base to make their organisations grow? The answer lies in action research. Action research is increasingly perceived and used as a powerful methodology to promote professional awareness and development. However, there are very few texts that demonstrate how this can be utilised to promote management and organisational improvement or that emphasise the reflective nature of improving professionalism. Action Research in Organisations fills this gap. Aimed at both practising managers and university students alike, key features of this title include:
Measurement is absolutely essential for any organization or company, functional area, department, business unit, project, or individual. Companies must know how their processes are performing, how well they are meeting customers’ needs, how targeted improvements are being achieved, and how management is doing. Accurate performance measures tell companies where they are, and to take action if they are not on track or if performance does not meet expectations.
Actionable Performance Measurement presents many different methods to help readers develop metrics and performance measures. To aid in corporate measures development and strategic, tactical and/or business planning, a quick and effective method of identifying specific key results areas is outlined and explained. Both customer and employee focuses are presented: how to measure each, and how to develop good surveys. In addition, Howell explains several methods for setting realistic-but-stretch targets are also presented, as well as a technique for measuring “apples and oranges.”
Readers will be able to measure employee and customer satisfaction, and be prepared to capably lead or be a member of a corporate or business unit measurement team to assess existing performance indicators effectiveness.
This set includes two books, edited by Delphi’s Chief Technology Officer Dr. Andrew Brown, Jr., which explore some of the most significant challenges currently facing the automotive industry—building safer and more connected vehicles.
Active Safety and the Mobility Industry and Connectivity and the Mobility Industry each include 20 SAE technical papers on their respective topics, originally published from 2009 through 2011.
Active Safety and the Mobility Industry
Details the latest innovations and trends in active safety technology and driver distraction prevention techniques.
Connectivity and the Mobility Industry
Covers such topics as vehicle-to-vehicle communications, telematics, and autonomous driving. It also includes three original articles on automotive connectivity, written by various industry experts.
This book presents the established fundamentals in the area of active sound and vibration control as well as exploring the new and emerging technologies and techniques. There has been a considerable amount of effort devoted to the development and realisation of methodologies for control of sound and vibration, and this book covers the latest theoretical, algorithmic and practical applications including: noise control in 3D propagation, adaptive algorithms, prediction, processing and tuning, neuro-active control, control of microvibrations, and noise reduction in locomotives and vehicles.
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Proven strategy for reducing production and operating costs while increasing profits
As the growth of the Internet shifts power to consumers, the pressure on companies to keep prices low will continue to mount. Increasingly corporations are relying on "margin management" and supply chain management as a means of keeping prices low while raising profits. Activity-based costing and management (ABC/M) data is key to succeeding in both these critical management strategies. This book explains how executives can effectively use the information furnished by cutting-edge ABC/M systems. The author, an acknowledged expert in the field, clearly defines the ABC/M system and explains how to use the information it provides for best results. He provides a rational framework for understanding the fifteen key defining characteristics of ABC/M and arms readers with an ABC/M Readiness Assessment test along with extremely user-friendly exhibits.
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This unique book describes continuous improvement in manufacturing from an executive viewpoint. It emphasizes how to incorproate the planning, organizing, directing, and controlling of key processes. Actual Experiences of a CEO includes tips on: creating a continuous improvement manufacturing management process to meet customer requirements; translating improvement of quality, delivery and lead time into market share, profit and cash flow.
n 555555The purpose of the book is to provide an exposition of recently developed adaptive and fault-tolerant control of underactuated nonlinear systems. Underactuated systems are abundant in real life, ranging from landing vehicles to surface ships and underwater vehicles to spacecrafts. For the tracking and stabilization control of underactuated mechanical systems, many methodologies have been proposed. However, a number of important issues deserve further investigation. In response to these issues, four important problems are solved in this book, including control of underactuated nonlinear systems with input saturation, output-feedback control in the presence of parametric uncertainties, fault-tolerant control of underactuated ships with or without actuator redundancy, and adaptive control of multiple underactauted nonlinear systems, including formation control and flocking control of multiple underactuated systems.
n 555555Adaptive business intelligence systems combine prediction and optimization techniques to assist decision makers in complex, rapidly changing environments. These systems address fundamental questions: What is likely to happen in the future? What is the best course of action? Adaptive Business Intelligence explores elements of data mining, predictive modeling, forecasting, optimization, and adaptability. The book explains the application of numerous prediction and optimization techniques, and shows how these concepts can be used to develop adaptive systems. Coverage includes linear regression, time-series forecasting, decision trees and tables, artificial neural networks, genetic programming, fuzzy systems, genetic algorithms, simulated annealing, tabu search, ant systems, and agent-based modeling.
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This book presents a series of innovative technologies and research results on adaptive control of dynamic systems with quantization, uncertainty, and nonlinearity, including the theoretical success and practical development such as the approaches for stability analysis, the compensation of quantization, the treatment of subsystem interactions, and the improvement of system tracking and transient performance. Novel solutions by adopting backstepping design tools to a number of hotspots and challenging problems in the area of adaptive control are provided.
In the first three chapters, the general design procedures and stability analysis of backstepping controllers and the basic descriptions and properties of quantizers are introduced as preliminary knowledge for this book. In the remainder of this book, adaptive control schemes are introduced to compensate for the effects of input quantization, state quantization, both input and state/output quantization for uncertain nonlinear systems and are applied to helicopter systems and DC Microgrid. Discussion remarks are provided in each chapter highlighting new approaches and contributions to emphasize the novelty of the presented design and analysis methods. Simulation results are also given in each chapter to show the effectiveness of these methods.
This book is helpful to learn and understand the fundamental backstepping schemes for state feedback control and output feedback control. It can be used as a reference book or a textbook on adaptive quantized control for students with some background in feedback control systems. Researchers, graduate students, and engineers in the fields of control, information, and communication, electrical engineering, mechanical engineering, computer science, and others will benefit from this book.
This book contains 63 papers covering the past 11 years (1996-2006) of research on the progress and challenges in the design of Adaptive Cruise Control (ACC) systems and components. Introduced in the automotive market in 1995, ACC takes advantage of the functions of several existing electronic control units and adds a sensor for measuring distance, relative speed, and lateral position of potential target vehicles using laser optics or millimeter waves.
Subjects covered include:
The book also includes editor Ronald K. Jurgen's introduction ("Adaptive Cruise Control: Still Evolving") and a concluding chapter on the current state of ACC and what can be expected in the future.
n 555555This book covers issues associated with smart systems due to the presence of onboard nonlinear components. It discusses the advanced architecture of smart systems for power management units. It explores issues of power management and identifies hazardous signals in the power management units of smart devices. It
This book comprehensively discusses advancements of traditional electrical grids, the benefits of smart grids to customers and stakeholders, properties of smart grids, smart grid architecture, smart grid communication, and smart grid security. It further covers the architecture of advance power management units (PMU) of smart devices, and the identification of harmonic distortions with respect to various sensor-based technology. It will serve as an ideal reference text for senior undergraduate and graduate students, and academic researchers in fields including electrical engineering, electronics, communications engineering, and computer engineering.
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Lack of Agility is the kiss of death. Position your company to succeed in world of change.
To edge out the competition in today’s disruptive environment, you need to ensure that your company is agile—that it can respond to change instantly and effectively. Because fast and furious change is the only thing you can count on in business today.
Network expert Michael Arena helped enable GM’s legendary turnaround. In these pages, he explains how you can transform your own company through the concept of adaptive space.
Based on hundreds of interviews and the author’s own groundbreaking study of dozens of organizations spanning a variety of industries, Adaptive Space shows how to position your company for today—and for the future—by enabling creativity, innovation, and novel ideas to flow freely among teams, across departments, and throughout the company.
Using GM as the main case study—along with the stories of other highly adaptive organizations, like Apple, Amazon, Disney, and Gore—Arena provides a model you can follow to reinvent your company. It’s about inspiring employees to explore new ideas, empowering the most creative people and teams to spread their ideas across the organization, and operationalizing the entrepreneurial spirit so adaptability is set in stone.
Hesitation is a killer in today’s business landscape. With Adaptive Space, you have everything you need to confront disruption with smart, confident actions and seize the valuable opportunities that come with change.
The use of additive manufacturing for the direct production of finished products is becoming increasingly important. The method not only reduces the demands on industrial infrastructure, but also opens up new perspectives in terms of decentralized production and customer inclusive individualized production (customization, cyberproduction).
Oriented towards the practitioner, in this book the basics of additive manufacturing are presented and the properties and special aspects of industrially available machines are discussed. From the generation of data to the forming method, the complete process chain is shown in a practical light. In particular, the following additive manufacturing technologies are discussed:
Applications for the production of models and prototypes (rapid prototyping), tools, tool inserts, and forms (rapid tooling) as well as end products (rapid manufacturing) are covered in detailed chapters with examples. Questions of efficiency are discussed from a strategic point of view, and also from an operational perspective.
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There has been a lot of development in the past two decades regarding Additive Manufacturing (AM). Recent developments have been highlighted by many researchers. However, until now, there has been a limit to what is available for beginners in a step-by-step format, showcasing the different commercial AM technologies for field application. This book will help fill that gap. The book will offer case studies of commonly used AM technologies with basic numerical problems for better understanding. It will also include hybrid processes and 4D printing applications, which is not currently offered in other AM books.
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Additive Manufacturing (AM) has altered manufacturing as we know it, with shortened development time, increased performance, and reduced product costs. Executive management in industry are bombarded by marketing from their competitors showcasing design solutions leveraged through AM. Therefore, executive management ask their project management teams to figure out how to utilize AM within their own company. Clueless on how to approach the problem, managers start learning about AM from experts and become overwhelmed at the highly technical information. Unlike other AM books that focus on the technical output of AM technology, this new book focuses solely on the managerial implementation.
Features
Additive Manufacturing, also known as AM or 3D printing, is a class of manufacturing processes that create objects by shaping material layer by layer. Having demonstrated the ability to produce miraculously complex geometries, it is broadly claimed that AM will have endless applications as the technology improves. However, underneath the hype surrounding this technology is a world of nuance and constraints as well as highly strategic applications.
Additive Manufacturing for Designers: A Primer, written by Dr. Amy Elliott from Oak Ridge National Laboratory and Dr. Cynthia K. Waters from North Carolina A&T State University discusses the topics needed for a holistic understanding of the many micro and macro components of the world of 3D printing.
Additive Manufacturing for Designers: A Primer takes the reader on a journey beginning with important aspects of AM part design and process dependence, including resolution and tolerance issues of interest to any manufacturer. It also offers useful insights into how to build especially complex parts and avoid expensive mistakes during and after the manufacturing process is completed.
Theoretical and practical interests in additive manufacturing (3D printing) are growing rapidly. Engineers and engineering companies now use 3D printing to make prototypes of products before going for full production. In an educational setting faculty, researchers, and students leverage 3D printing to enhance project-related products. Additive Manufacturing Handbook focuses on product design for the defense industry, which affects virtually every other industry. Thus, the handbook provides a wide range of benefits to all segments of business, industry, and government. Manufacturing has undergone a major advancement and technology shift in recent years.
Additive Manufacturing of Aerospace Composite Structures: Fabrication and Reliability introduces the reader to the current state of technologies involved in processing and design of polymer-reinforced fiber composites using additive manufacturing’s automated fiber placement methods, through ten seminal SAE International papers.
Currently, the material layup strategy in terms of process selection and manufacturability is usually not prioritized in the design phase. Engineers do not have a good way to see how their design choices can affect the manufacturing process beyond their initial structural-level considerations. The result is typically a large amount of experimental testing necessary to qualify the materials and structures typified in the classical building-block approach. Such an environment makes mistakes difficult to solve and, should redesign be required, obtaining reliable information is hard to piece together.
Additive Manufacturing of Aerospace Composite Structures: Fabrication and Reliability approaches the question of quality in these structures from a hands-on, solution-driven perspective.
3D and 4D metallic printing principles, practices, and applications
This practical guide clearly explains the tools and methods necessary to bridge the performance gap between conventionally produced and printed parts. Written by a metals expert and experienced educator, Additive Manufacturing of Metals: Fundamentals and Testing of 3- and 4-D Printing starts by explaining the basics, including components, metals, and production processes before progressing to more advanced topics. You will get complete discussions on issues related to the lack of regulation and standardization, mechanical behavior of printed parts, defects, measurements, and quality control. In addition, the book also discusses predictions for the future of the technology. It presents the potential obstacles that may limit its universal adoption across the manufacturing landscape.
Coverage includes:
The field of additive manufacturing is growing dynamically as the interest is persisting from manufacturing sector, including other sectors as well. Conceptually, additive manufacturing is a way to build parts without using any part-specific tooling or dies from the computer-aided design (CAD) file of the part. Second edition of Additive Manufacturing highlights the latest advancements in the field, taking an application oriented approach. It includes new material on traditional polymer based rapid prototyping technologies, additive manufacturing of metals and alloys including related design issues. Each chapter comes with suggested reading, questions for instructors and PowerPoint slides.
n 555555This book describes, in clear understandable language, the three main disciplines of adhesion technology:
Some knowledge of physical and organic chemistry is assumed, but no familiarity with the science of adhesion is required. The emphasis is on understanding adhesion, how surfaces can be prepared and modified, and how adhesives can be formulated to perform a given task. Throughout the book, the author provides a broad view of the field, with a consistent style that leads the reader from one step to the next in gaining an understanding of the science.
The 4th edition has additional content covering sustainability (use of natural products in adhesives) and bonding of composite materials. There are also updates and small improvements throughout, together with some new review questions aprovided at the end of the chapters.
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A One-Stop Guide to Adhesives and Coatings Technology
The book provides an in-depth coverage on the world of adhesives and coatings and their relevance in our day-to-day life. Apart from the principles and practices of adhesives, coatings, microencapsulation and plating processes, the book presents a comprehensive description on coated textiles, powder coatings, tribology and tribological coatings.
With this wide coverage, Adhesives and Coatings Technology would serve as likable, reference book for professionals as well as students of polymer and related technology and chemical engineering.
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