## Acoustical Physics, Volume 44, Issues 4-6 |

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### Contents

Vol 44 No 41998 | 371 |

ShortWave Diffraction of an Acoustic Field at a Rigid Scatterer in a Waveguide with a Rough Surface | 377 |

Modal Structure of the Wavefield in a RangeDependent Pekeris Waveguide | 384 |

Copyright | |

39 other sections not shown

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acoustic waves Akust amplitude angular antiresonance approximation array axis beam borehole bottom boundary conditions calculated channel characteristics coefficient components computed considered correlation correlation function corresponding curve dependence depth determined diffraction distance effect elastic energy equation estimate expression flow formula fractal frequency range function grazing angles group velocity halfspace horizontal hydrophone inhomogeneities integral intensity internal waves laser layer linear liquid matrix measurements medium method mode Moscow Nauka noise nonlinear Nonlinear Acoustics obtained ocean Original Russian Text oscillations parameters phase phase velocity Phys Physics piezoelectric plane plate pressure fluctuations problem pulse quency radiation rays received reflection reflection coefficient region resonance Russian Academy Russian Text Copyright scattering shells signal soliton solution sound field sound source sound velocity spatial spectra spectrum structure surface symmetry temperature tion transverse transverse waves turbulence ultrasonic underwater underwater acoustic values vector vibrations viscoelastic waveguide