Tracing efforts to control unwanted sound--the noise of industry, city traffic, gramophones and radios, and aircraft--from the late nineteenth to the late twentieth century.

Mechanics of Underwater Noise elucidates the basic mechanisms by which noise is generated, transmitted by structures and radiated into the sea. Organized into 10 chapters, this book begins with a description of noise, decibels and levels, significance of spectra, and passive sonar equation. Subsequent chapters discuss sound waves in liquids; acoustic radiation fundamentals; wind-generated ocean ambient noise; vibration isolation and structural damping; and radiation by plate flexural vibrations. Other chapters address cavitation, propeller cavitation noise, radiation by fluctuating-force (dipole) sources, and mechanical noise sources. This book will be helpful as a self-education text and as a reference for workers in the field.

Written in a straightforward, nontechnical style that maintains depth and accuracy, this landmark reference is the first text on building systems for interior designers. From heating and cooling systems, water and waste, electricity, lighting, interior transportation and communication systems, all of the mechanical and electrical systems that interior designers need to know are covered in a clear and accessible way. The technical knowledge and vocabulary presented here allow interior designers to communicate more effectively with architects, engineers, and contractors while collaborating on projects, leading to more accurate solutions for problems related to a broad range of other building considerations with an impact on interior design New to this edition are chapters on structural systems and building components, and how they are integrated with the other systems. Illustrated with over 100 photographs and drawings new to this edition, Building Systems for Interior Designers is sure to be constantly at the fingertips of designers.

The chapters in this volume explore ultrasound-assisted regeneration of silica gel, ultrasound-assisted regeneration for a new honeycomb desiccant material, ultrasound-atomizing regeneration for liquid desiccants, ultrasonic transducers, and much more.

This dictionary clearly and accurately defines more than 600 terms used in ethology, the science of animal behavior, in entries of one or two paragraphs. While there are several reference books dealing with ethology, the only real rival to this title is "The Oxford Companion to Animal Behavior", edited by David McFarland (Oxford Univ. Pr., 1982), which covers half as many terms in twice as many pages, has hundreds of illustrations, and an index to the animals mentioned in the text. Smaller libraries can get by with the Oxford reference while larger libraries and natural history collections should have both titles.-- Jonathan F. Husband, Framingham State Coll. Lib., Mass.

Controlling the level of noise in electrical motors is critical to overall system performance. However, predicting noise of an electrical motor is more difficult and less accurate than for other characteristics such as torque-speed. Recent advances have produced powerful computational methods for noise prediction, and Noise of Polyphase Electric Motors is the first book to collect these advances in a single source. It is also the first to include noise prediction for permanent magnet (PM) synchronous motors. Complete coverage of all aspects of electromagnetic, structural, and vibro-acoustic noise makes this a uniquely comprehensive reference. The authors begin with the basic principles of noise generation and radiation, magnetic field and radial forces, torque pulsations, acoustic calculations, as well as noise and vibration of mechanical and acoustic origin. Moving to applications, the book examines in detail stator system vibration analysis including the use of finite element method (FEM) modal analysis; FEM for radial pressure and structural modeling; boundary element methods (BEM) for acoustic radiation; statistical energy analysis (SEA); instrumentation including technologies, procedures, and standards; and both passive and active methods for control of noise and vibration. Noise of Polyphase Electric Motors gathers the fundamental concepts along with all of the analytical, numerical, and statistical methods into a unified reference. It supplies all of the tools necessary to improve the noise performance of electrical motors at the design stage.