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Record Nr. |
UNINA9910780894803321 |
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Autore |
Makarov Denis |
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Titolo |
Ray and wave chaos in ocean acoustics [[electronic resource] ] : chaos in waveguides / / Denis Makarov ... [et al.] |
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Pubbl/distr/stampa |
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Hackensack, N.J., : World Scientific, c2010 |
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ISBN |
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1-282-75805-5 |
9786612758058 |
981-4273-18-X |
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Descrizione fisica |
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1 online resource (412 p.) |
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Collana |
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Series on complexity, nonlinearity and chaos, , 2010-0019 ; ; v. 1 |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Underwater acoustics |
Waves |
Chaotic behavior in systems |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Contents; Preface; 1. Ray and Wave Propagation; 1.1 Underwater Sound Channel; 1.2 Basic Equations; 1.2.1 Helmholtz equation; 1.2.2 Parabolic equation; 1.3 Geometrical Optics Approximations and Optical- Mechanical Analogy. The Hamiltonian Formalism; 1.3.1 Eikonal and transport equations; 1.3.2 Momentum-position variables; 1.3.3 Action-angle variables in a range-independent waveguide; 1.3.3.1 Canonical transformation; 1.3.3.2 Ray path in the unperturbed waveguide; 1.3.3.3 Canonical transformation in the form of Fourier series; 1.3.4 Action-angle variables in a range-dependent waveguide |
1.3.4.1 Slow range variation of the sound speed field1.3.4.2 Weak variation of the sound speed field; 1.3.5 Geometrical optics for the Helmholtz equation; 1.3.5.1 Eikonal and transport equations; 1.3.5.2 Momentum-position variables; 1.3.5.3 Action-angle variables; 1.4 Ray Travel Times; 1.4.1 Timefront; 1.4.2 Travel time as a function of starting momentum; 1.5 Range-Dependent Environments; 1.5.1 Internal waves; 1.5.2 Rossby waves; 1.5.3 Currents; 1.5.4 Eddies; 1.6 Acoustic Ocean Tomography; 1.7 Experiments on Long-Range Sound Propagation; 1.7.1 The Heard Island Feasibility Test |
1.7.2 Experiments with bottom-mounted sources1.7.2.1 Downsloped |
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bathymetry near a source; 1.7.3 Acoustic Engineering Test; 1.7.4 Alternate Source Test; 1.7.5 Acoustic Thermometry of Ocean Climate; 1.8 Summary; 2. Ray Chaos; 2.1 Hamiltonian Chaos; 2.1.1 Dynamics of Hamiltonian systems; 2.1.2 Statistical description of Hamiltonian chaos; 2.2 Lyapunov Instability; 2.3 Ray-Medium Resonance; 2.4 Overlapping of Resonances; 2.5 Vertical Resonance; 2.5.1 Adiabatic approximation; 2.5.2 Passage through a resonance; 2.5.2.1 Scattering on a resonance; 2.5.2.2 Capturing into a resonance |
2.5.3 Vertical resonance versus ray-medium resonance2.5.4 Resonance-induced chaotic layer; 2.5.5 Influence of vertical resonance on a timefront of a received pulse; 2.6 Manifestation of Regular and Chaotic Ray Motion in Distributions of Ray Travel Times; 2.6.1 Perturbed waveguide; 2.6.2 Timefront; 2.6.3 Amplitude of a pulse signal in plane "travel time-depth"; 2.6.4 Gap between travel times of chaotic and regular rays; 2.6.5 "Focusing" of ray travel times; 2.6.6 Role of stickiness and chaotic jets in "focusing" of ray travel times; 2.6.7 Smoothed intensity of pulse signal; 2.7 Summary |
3. Wave Chaos3.1 The Problem of Wave Chaos; 3.1.1 Ehrenfest time; 3.1.2 Semiclassical propagator; 3.1.3 Fidelity or overlap of wave fields; 3.1.4 Dynamical localization; 3.2 Normal Modes; 3.2.1 Range-independent waveguide; 3.2.1.1 Eigenfunctions and eigenvalues in the WKB approximation; 3.2.1.2 Mode amplitudes; 3.2.1.3 Brillouin waves; 3.2.1.4 Matrix elements; 3.2.1.5 Ray-mode relations; 3.2.2 Range-dependent waveguide; 3.2.2.1 Coupled mode equations: slow and strong range dependence; 3.2.2.2 Coupled mode equations: weak range dependence |
3.2.3 Normal modes corresponding to the Helmholtz equation |
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Sommario/riassunto |
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A systematic study of chaotic ray dynamics in underwater acoustics began in the mid-1990s when it was realized that this factor plays a crucial role in long-range sound propagation in the ocean. The phenomenon of ray chaos and its manifestation at a finite wavelength -- wave chaos -- have been investigated by combining methods from the theory of wave propagation and the theory of dynamical and quantum chaos. This is the first monograph summarizing results obtained in this field. Emphasis is made on the exploration of ray and modal structures of the wave field in an idealized environmental model with periodic range dependence and in a more realistic model with sound speed fluctuations induced by random internal waves. The book is intended for acousticians investigating the long-range sound transmission through the fluctuating ocean and also for researchers studying waveguide propagation in other media. It will be of major interest to scientists working in the field of dynamical and quantum chaos. |
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2. |
Record Nr. |
UNINA9910140739603321 |
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Autore |
Ohshima Hiroyuki <1944-> |
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Titolo |
Biophysical chemistry of biointerfaces / / Hiroyuki Ohshima |
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Pubbl/distr/stampa |
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ISBN |
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9786612707735 |
9781118057858 |
1118057856 |
9781282707733 |
1282707736 |
9780470630631 |
0470630639 |
9780470630624 |
0470630620 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (565 p.) |
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Disciplina |
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Soggetti |
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Biological interfaces |
Physical biochemistry |
Surface chemistry |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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BIOPHYSICALCHEMISTRY OFBIOINTERFACES; CONTENTS; PREFACE; LIST OF SYMBOLS; PART I Potential and Charge at Interfaces; 1 Potential and Charge of a Hard Particle; 2 Potential Distribution Around a Nonuniformly Charged Surface and Discrete Charge Effects; 3 Modified Poisson-Boltzmann Equation; 4 Potential and Charge of a Soft Particle; 5 Free Energy of a Charged Surface; 6 Potential Distribution Around a Charged Particle in a Salt-Free Medium; PART II Interaction Between Surfaces; 7 Electrostatic Interaction of Point Charges in an Inhomogeneous Medium |
8 Force and Potential Energy of the Double-Layer Interaction Between Two Charged Colloidal Particles9 Double-Layer Interaction Between Two Parallel Similar Plates; 10 Electrostatic Interaction Between Two Parallel Dissimilar Plates; 11 Linear Superposition Approximation for |
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the Double-Layer Interaction of Particles at Large Separations; 12 Derjaguin's Approximation at Small Separations; 13 Donnan Potential-Regulated Interaction Between Porous Particles; 14 Series Expansion Representations for the Double-Layer Interaction Between Two Particles |
15 Electrostatic Interaction Between Soft Particles16 Electrostatic Interaction Between Nonuniformly Charged Membranes; 17 Electrostatic Repulsion Between Two Parallel Soft Plates After Their Contact; 18 Electrostatic Interaction Between Ion-Penetrable Membranes in a Salt-Free Medium; 19 van der Waals Interaction Between Two Particles; 20 DLVO Theory of Colloid Stability; PART III Electrokinetic Phenomena at Interfaces; 21 Electrophoretic Mobility of Soft Particles; 22 Electrophoretic Mobility of Concentrated Soft Particles; 23 Electrical Conductivity of a Suspension of Soft Particles |
24 Sedimentation Potential and Velocity in a Suspension of Soft Particles25 Dynamic Electrophoretic Mobility of a Soft Particle; 26 Colloid Vibration Potential in a Suspension of Soft Particles; 27 Effective Viscosity of a Suspension of Soft Particles; PART IV Other Topics; 28 Membrane Potential and Donnan Potential; INDEX |
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Sommario/riassunto |
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The first book on the innovative study of biointerfaces using biophysical chemistry The biophysical phenomena that occur on biointerfaces, or biological surfaces, hold a prominent place in the study of biology and medicine, and are crucial for research relating to implants, biosensors, drug delivery, proteomics, and many other important areas. Biophysical Chemistry of Biointerfaces takes the unique approach of studying biological systems in terms of the principles and methods of physics and chemistry, drawing its knowledge and experimental techniques from a wide variety of disc |
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