In diesem Band der Reihe Fachwissen Technische Akustik werden die Beeintrachtigungen durch Umgebungslarm dargestellt und aus den Larmwirkungen Zielwerte fur den Larmschutz abgeleitet. Die Methodik des stadtebaulichen Larmschutzes wird erlautert. Das aktuell gultige Immissionsschutzrecht wird beschrieben und bewertet. Fur den Strassenverkehrslarm als relevanteste Quelle werden Instrumente und Massnahmen zur Minderung vorgestellt.

Dieser Band der Reihe Fachwissen Technische Akustik behandelt die physiologischen Aspekte des Hoersystems sowie die akustische Wahrnehmung des Menschen. Die Autoren untersuchen die durch Larm verursachten gesundheitlichen Beeintrachtigungen. Abschliessend werden nichtakustische Einflussgroessen (Moderatoren) erlautert.

Dieser Band der Reihe Fachwissen Technische Akustik behandelt die Entstehungsmechanismen und die Minderung von Erschutterungen und sekundarem Luftschall aus dem Schienenverkehr. Aufbauend auf den Erkenntnissen des Luftschalls aus dem Schienenverkehr wird auf deren Bewertung sowie auf Prognoseverfahren eingegangen.

An authoritative exposition of the methods at the heart of modern non-stationary signal processing from a recognised leader in the field. Offering a global view that favours interpretations and historical perspectives, it explores the basic concepts of time-frequency analysis, and examines the most recent results and developments in the field in the context of existing, lesser-known approaches. Several example waveform families from bioacoustics, mathematics and physics are examined in detail, with the methods for their analysis explained using a wealth of illustrative examples. Methods are discussed in terms of analysis, geometry and statistics. This is an excellent resource for anyone wanting to understand the 'why and how' of important methodological developments in time-frequency analysis, including academics and graduate students in signal processing and applied mathematics, as well as application-oriented scientists.

Now in an accessible paperback edition, this classic work is just as relevant as when it first appeared in 1974, due to the increased use of nonlinear waves. It covers the behavior of waves in two parts, with the first part addressing hyperbolic waves and the second addressing dispersive waves. The mathematical principles are presented along with examples of specific cases in communications and specific physical fields, including flood waves in rivers, waves in glaciers, traffic flow, sonic booms, blast waves, and ocean waves from storms.

Nonlinear optical media have already opened up a universe rich in technological possibilities. Holograms can be recorded and erased in these media. And nonlinear optical media, such as photorefractive crystals, are highly efficient, particularly for wave mixing and phase conjugation. To make effective use of these media for the transmission and manipulation of optical information requires a clear understanding of the theory at the root of the entire phenomenon. Designed as a reference for advanced students in the area of modern optics for electrical engineering and applied physics, Introduction to Photorefractive Non-linear Optics not only sheds light on the field's basic underlying theorem but also clearly links it with practical applications, forming the first introductory textbook to balance both. While clearly illuminating such practical applications as optical computing and neural networks, the book's emphasis throughout is on the theory of the propagation of optical waves and the mixing of electromagnetic radiation in nonlinear optical media. In a progressive format that moves from the elementary to the complex, the book begins with the basics of electromagnetic waves and periodic structures, examining the physics of photorefractive effects and the mixing of waves in these media. Classical electrodynamics is used to describe the mixing of waves in photorefractive media. Concepts in elementary solid state physics are also used to clarify the discussion on the transport of charges in photorefractive crystals. Following chapters take an in-depth look at optical phase conjugators and photorefractive resonators. The fundamental principles of gratings and holograms are examined inchapters 7 and 8. The manifold applications in optical information processing, optical interconnection, and neural networks are clearly detailed in the following three chapters. The last chapter is devoted to a timely look at the higher order photorefractive effect in optical fibers. The result of the collective research and development conducted by scientists over the years at the Rockwell International Science Center, this important reference is an unprecedented inside look at the innovations at the technology's leading edge. Illustrating theory with useful numerical examples based on real situations, the book provides students with a clear practical grasp of the essentials of the science as well as the technology's day-to-day applications. Not simply a monograph, Introduction to Photorefractive Nonlinear Optics is, instead, a comprehensive introductory guide to understanding - and using - this fascinating evolving technology.

Dieser Band der Reihe Fachwissen Technische Akustik behandelt die am weitesten verbreiteten, wellentheoretischen Verfahren der numerischen Akustik. Die Randelementemethode, die Finite-Elemente-Methode und die Ersatzstrahlermethode werden in den Kapiteln ausfuhrlich behandelt. Weitere Methoden wie z. B. Approximationen fur hohe Frequenzen, Verfahren der geometrischen Akustik oder die statistische Energieanalyse werden ebenfalls kurz angesprochen.

This book describes the entire process of designing guitars, including the theory and guidelines for implementing it in practice. It discusses areas from acoustics and resonators to new tools and how they assist traditional construction techniques. The book begins by discussing the fundamentals of the sounds of a guitar, strings, and oscillating systems. It then moves on to resonators and acoustics within the guitar, explaining the analysis systems and evaluation methods, and comparing classic and modern techniques. Each area of the guitar is covered, from the soundboard and the back, to the process of closing the instrument. The book concludes with an analysis of historic and modern guitars. This book is of interest to luthiers wanting to advance their practice, guitar players wishing to learn more about their instruments, and academics in engineering and physics curious about the principles of acoustics when applied to musical instruments.

This book deals with the ear as an acoustic instrument: as a piece of physical apparatus functioning for the reception of sounds from the outside, for conveying them inward to the auditory sense cells, and finally for producing a mechanical stimulation of these cells. Originally published in 1954. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

This book offers a fundamental explanation of nonlinear oscillations in physical systems. Originally intended for electrical engineers, it remains an important reference for the increasing numbers of researchers studying nonlinear phenomena in physics, chemical engineering, biology, medicine, and other fields. Originally published in 1986. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

This book offers the first comprehensive introduction to wave scattering in nonstationary materials. G. F. Roach's aim is to provide an accessible, self-contained resource for newcomers to this important field of research that has applications across a broad range of areas, including radar, sonar, diagnostics in engineering and manufacturing, geophysical prospecting, and ultrasonic medicine such as sonograms.

New methods in recent years have been developed to assess the structure and properties of materials and surfaces. When light, sound, or some other wave energy is directed at the material in question, "imperfections" in the resulting echo can reveal a tremendous amount of valuable diagnostic information. The mathematics behind such analysis is sophisticated and complex. However, while problems involving stationary materials are quite well understood, there is still much to learn about those in which the material is moving or changes over time. These so-called non-autonomous problems are the subject of this fascinating book. Roach develops practical strategies, techniques, and solutions for mathematicians and applied scientists working in or seeking entry into the field of modern scattering theory and its applications.

"Wave Scattering by Time-Dependent Perturbations" is destined to become a classic in this rapidly evolving area of inquiry

Este libro pone a disposicion del lector de habla hispana un tratamiento distinto y original de los temas fundamentales de la Ingenieria Acustica. El libro contiene los fundamentos cientificos de las tecnicas utilizadas para lograr un ambiente acustico menos contaminado. La mayoria de los capitulos consideran, directa o indirectamente, el problema de como reducir los niveles de ruido. Se ha puesto especial atencion en los principios fundamentales y en la comprension de los fenomenos fisicos involucrados en las distintas problematicas de la Ingenieria Acustica. El texto esta orientado tanto a estudiantes y docentes de nivel universitario, como a ingenieros de distintas especialidades interesados en este importante tema.

This book offers a readable narrative of the science and technology of early radio combined with sociological and economic analysis of how radio changed our lives

Originally published in 1985.

The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These paperback editions preserve the original texts of these important books while presenting them in durable paperback editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Die vollstandige Berechnung und Darstellung von Schallvorgangen macht schon in den Fallen, wo es sich im einfaohe Strahleranordnungen handelt, nicht unerhebliche Schwierigkeiten. Damit hangt es wohl zu- sammen, dass eine systematische Behandlung daruber nicht vorliegt. Im folgenden wird der Versuch gemacht, die grundlegenden Formeln und Begriffe zu entwickeln und an einer Reihe von einfachen Beispielen praktisch anzuwenden. Dabei erscheint es wegen der ausserordentlichen Vereinfaohung naturgemass, die Berechnung zunachst auf das Gebiet in grosser Entfernung vom Strahler zu beschranken. Bei dieser Ein- schrankung ergibt sich der UEbergang vom ungerichteten zum gerichteten Strahler sehr einfach, indem die Formeln des ungerichteten Schall- senders durch einen zusatzlichen Faktor, der als Richtfaktor bzw. Strah- lungsfaktor gekennzeichnet ist, erganzt werden. Auch maoht dann die Berechnung des Sohallfeldes von solchen Membranen, die im Gegensatz zur Kolbenmembran keine konstante Sohwingungsamplitude hab:: m oder Knotenlinien besitzen, keine besonderen Schwierigkeiten. Der zweite Teil behandelt die Darstellung des in unmittelbarer Nahe des Strahlers vorhandenen Schallfeldes. Der zunachst untersuchte Fall von zwei punktfoermigen Strahlern zeigt bereits, dass jetzt ganz wesent- lich kompliziertere Verhaltnisse vorliegen. Man ist daher auch ge- zwungen, das Schallfeld an jeder Stelle zu beschreiben. Das geschieht am einfachsten, indem man die Kurven zeichnet, fur welche die Druck- amplitude einen konstanten Wert besitzt. Oft ist es jedoch auch zweck- voll, Kurven konstanter Phase zu berechnen. Im Falle der kreisfoermigen Kolbenmembran, der praktisch von besonderer Bedeutung ist, ist es wesentlich, dass wenigstens die Werte auf der Mittelachse, auch in in- mittelbarer Nahe, sehr einfach angegeben werden koennen.

Akustische Kommunikation wendet sich an alle wissenschaftlichen Fachrichtungen, die bestrebt sind, ein anwendbares Verstandnis der zahlreichen interdisziplinaren Sachverhalte, Zusammenhange und Voraussetzungen der Kommunikation mit Sprache und Musik zu erlangen. Daher werden signal- und systemtheoretische, physikalische, elektroakustische, phonetische, musikakustische, psychoakustische und hortheoretische Grundlagen gleichgewichtet dargestellt.
Ein Anhang mit Symbolen, Grossen und Konstanten, ein umfangreiches Literaturverzeichnis mit 1123 Zitaten sowie eine CD mit 31 Horbeispielen machen dieses Fachbuch zu einem unentbehrlichen Standardwerk."

Interactions between waves and mean flows play a crucial role in understanding the long-term aspects of atmospheric and oceanographic modelling. Indeed, our ability to predict climate change hinges on our ability to model waves accurately. This book gives a modern account of the nonlinear interactions between waves and mean flows, such as shear flows and vortices. A detailed account of the theory of linear dispersive waves in moving media is followed by a thorough introduction to classical wave-mean interaction theory. The author then extends the scope of the classical theory and lifts its restriction to zonally symmetric mean flows. It can be used as a fundamental reference, a course text, or by geophysicists and physicists needing a first introduction. This second edition includes brand new material, including a section on Langmuir circulations and the Craik-Leibovich instability. The author has also added exercises to aid students' learning.

This book explains wavelets to both engineers and mathematicians. It approaches the subject with a major emphasis on the filter structures attached to wavelets. Those filters are the key to algorithmic efficiency and they are well developed throughout signal processing. Now they make possible major achievements in data analysis and compression. The explanations of difficult topics are direct, rigorous and very approachable. Many practical applications are discussed. The book is ideal as an introduction to the principles of wavelets and as a reference for the analysis and applications. Also included in Wavelets and Filter Banks are many examples to make effective use of the MATLAB Wavelet Toolbox.

Dieses Buch wendet sich an Konstrukteure, Wissenschaftler und fortgeschrittene Studenten des Maschinenbaus. Neben den physikalischen, maschinenakustischen und messtechnischen Grundlagen sowie den mathematischen Methoden liegen die Schwerpunkte auf neuesten Erkenntnissen und Verfahren in diesem Fachgebiet, die das Buch zu einer einzigartigen und wertvollen Informationsquelle machen: - Numerische Berechnungsverfahren, Finite Elemente bei Koerperschall, Randelemente fur Abstrahlung - Abschatzverfahren fur Koerperschall- und Abstrahlmass - Konstruktive Massnahmen zur aktiven Larmminderung Die zweite neu bearbeitete Auflage tragt der rasanten Entwicklung im Bereich der numerischen Verfahren Rechnung.

Das vierbandige Werk behandelt in voller Breite die Messtechnik in der Forschung und Entwicklung der Automobilindustrie. Der Autor kann dabei auf langjahrige Erfahrungen als Leiter der Messtechnik-Abteilung des grossten deutschen Automobilherstellers zuruckgreifen. Die einzelnen Bande beschaftigen sich mit den Messverfahren der Kraftfahrzeugentwicklung, insbesondere mit der Akustik (Band A) und der "Optik (Band B)." Neben den klassischen Standard-Methoden werden moderne Verfahren (Laser etc.) erlautert. Des weiteren widmet sich der Autor den "Abgasmessverfahren (Band C)" und den Messmethoden in der "Fahrzeugsicherheitstechnik (Band D)." Obgleich die Bande die fur die Fahrzeugentwicklung relevante Messtechnik zum Thema haben, kann das Gesamtwerk als wichtiges Hand- und Lehrbuch der allgemeinen Messtechnik angesehen werden, da viele auch fur andere Gebiete der Technik verwendbare Verfahren enthalten sind."

"Computer im Praktikum" will ein Leitfaden fur das moderne Praktikum der Phsik sein, das durch geschickte Unterstutzung durch den Einsatz von Computern eine neue Lehrqualitat erhalten kann. Der erste Teil definiert Lernziele und hiterfragt den sinnvollen Einsatz von Computern in Praktika. Der zweite Teil stellt zwolf Experimente im Detail dar und regt zum Nachbauen oder zum Erstellen neuer Praktikumsversuche an. Der dritte Teil widmet sich dem eigens konzipierten Computerpraktikum. "Numerik und Interfacing," das richtungsweisend sein soll.
Professor Jodl war Leiter des von 1991 bis 1995 durchgefuhrten Modellversuchs "Entwicklung und Testeinsatz von Personalcomputern in Physikhochschulpraktika." Das Buch wendet sich an Dozenten, Praktikumsleiter und Assitenten."

Correlation signals play an outstanding role in telecommunications and measurement technology. For the first time, the book gives an overview over synthesis and characteristics of correlation sequences and arrays. After an introductin to the basic principles, correlation sequences and families as well as two-dimensional correlation arrays are discussed. Possibilities of application are presented. Remarks: Review Copy Mailing List: - Frequenz ISSN 0016-1136 - AEUE ISSN 0001-1096 - NTZ ISN 0027-707X - Signal Processing ISSN 0165-1684 - Informatik Spektrum ISSN 0170-6012 - Physikalische Bl{tter ISSN 0031-9279 - Nachrichtentechnik-Elektronik ISSN 0323-4657 - IEEE Transactions on Communications ISSN 0090-6778 - IEEE Transactions on Information Theory ISSN0018-9448 - IEEE Transactions on Aerospace and Electronic Systems ISSN 0018-9251 - Information Technology Rev. ISSN? (Price Waterhouse, LondonSE1 9SY) - Nachrichtentechnik ISSN 0342-9148 Remarks: Press activities recommended: - NTZ ISSN 0027-707X - Frequenz ISSN 0016-1136 - AEUE ISSN 0001-1096 - Signal Processing ISSN 0165-1684