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This volume contains almost all of the 79 papers presented at the Fourth International Conference on Vibrations at Surfaces. The proceedings reflect the significant advances that have been made in the field of surface vibrations since the previous conference on the topic held in 1982. The presented papers showed a tendency of development in new directions, particularly in relation to dynamical effects occurring in atom and molecule-surface interactions. These proceedings cover the field of surface vibrational spectroscopy in such a way as to make the book an asset to those involved in both ex

Vibrations --- Acoustic surface waves --- Phonons --- Crystals --- Vibration --- Lattice dynamics --- Surfaces

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Surface acoustic wave (SAW) devices are recognized for their versatility and efficiency in controlling and processing electrical signals. This has resulted in a multitude of device concepts for a wide range of signal processing functions, such as delay lines, filters, resonators, pulse compressors, convolvers, and many more. As SAW technology has found its way into mass market products such as TV receivers, pagers, keyless entry systems and cellular phones, the production volume has risen to millions of devices produced every day. At the other end of the scale, there are specialized high performance signal processing SAW devices for satellite communication and military applications, such as radar and electronic warfare.This volume, together with Volume 2, presents an overview of recent advances in SAW technology, systems and applications by some of the foremost researchers in this exciting field.

Acoustic surface wave devices. --- Acoustic surface waves. --- Waves, Acoustic surface --- Waves, Elastic surface --- Elastic waves --- Sound-waves --- Surface waves (Oceanography) --- Surface acoustic wave devices --- Surface wave devices, Acoustic --- Acoustic surface waves --- Electro-acoustics --- Piezoelectric devices

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The papers in this book provide a unique state-of-the-art multidisciplinary overview on the subject of waves in pre-stressed materials through the interaction of several topics, ranging from the mathematical modelling of incremental material response (elastic and inelastic), to the analysis of the governing differential equations and boundary-value problems, and to computational methods for the solution to these problems, with particular reference to industrial, geophysical, and biomechanical applications. A complete view on the title subject is proposed, including: The basic and fundamental theoretical issues (mechanical modelling, exact solutions, asymptotic methods, numerical treatment); A unified introduction to wave propagation (small on large and large on large); A look toward classical (such as geophysics and the mechanics of rubber-like solids) and emergent (such as biomechanics) applications.

Elastic waves. --- Acoustic surface waves. --- Nonlinear waves. --- Nonlinear theories --- Wave-motion, Theory of --- Waves --- Waves, Acoustic surface --- Waves, Elastic surface --- Elastic waves --- Sound-waves --- Surface waves (Oceanography) --- Elasticity --- Underground nuclear explosions --- Engineering. --- Engineering, general. --- Construction --- Industrial arts --- Technology

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This complete introduction to the use of modern ray tracing techniques in plasma physics describes the powerful mathematical methods generally applicable to vector wave equations in non-uniform media, and clearly demonstrates the application of these methods to simplify and solve important problems in plasma wave theory. Key analytical concepts are carefully introduced as needed, encouraging the development of a visual intuition for the underlying methodology, with more advanced mathematical concepts succinctly explained in the appendices, and supporting Matlab and Raycon code available online. Covering variational principles, covariant formulations, caustics, tunnelling, mode conversion, weak dissipation, wave emission from coherent sources, incoherent wave fields, and collective wave absorption and emission, all within an accessible framework using standard plasma physics notation, this is an invaluable resource for graduate students and researchers in plasma physics.

Plasma waves. --- Ray tracing algorithms. --- Phase space (Statistical physics) --- Space, Phase (Statistical physics) --- Generalized spaces --- Interactive ray tracing --- Computer animation --- Computer algorithms --- Geometrical optics --- Optical data processing --- Plasma sound waves --- Acoustic surface waves --- Magnetohydrodynamics --- Plasma (Ionized gases) --- Waves

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The subject of wave-particle interactions occurring in space plasmas has developed strongly, both observationally and theoretically, since the discovery of the Van Allen radiation belts of energetic charged particles trapped in the Earth's magnetosphere over forty years ago. These wave-particle interactions are recognized today as being a most important research topic in space plasma physics. This book provides a full and systematic description of the physical theory of whistler and Alfvén cyclotron masers acting in planetary magnetospheres, and in the Sun's outer atmosphere. The book introduces research topics by examining significant problems in the subject. It gives sufficient detail on the topic that readers can go on to apply the methods presented to new problems, helping them with their own research. This book is a valuable reference for researchers and graduate students working in space science, solar-terrestrial physics, plasma physics, and planetary sciences.

Astronomical masers. --- Cyclotrons. --- Plasma waves. --- Astrophysics. --- Cosmology. --- Astronomy --- Deism --- Metaphysics --- Astronomical physics --- Cosmic physics --- Physics --- Plasma sound waves --- Acoustic surface waves --- Magnetohydrodynamics --- Plasma (Ionized gases) --- Waves --- Cyclotron --- Magnetic resonance accelerators --- Particle accelerators --- Celestial masers --- Interstellar masers --- Masers, Celestial --- Interstellar matter --- Masers --- Radio sources (Astronomy)