... Unlike to the classical hyperbolic shock waves, pressure waves in porous media are usually parabolic. There are several kinds of physical systems when such pressure waves can occur: filtration combustion, shock tubes experiments with liquid-filled porous media, explosive boiling of sub-heated liquids inside high-power heaters with porous covering. The structure and dynamics of the pressure waves within porous media are studied experimentally both in the shock tubes and in the heaters. ...
. AUTHOR : Dijkhuis J. I. 1. ааа Propagation and Diffraction of Picosecond Acoustic Wave Packets in the Soliton Regime . O.L.Muskens, J.I.Dijkhuis (Atom Optics and Ultrafast Dynamics, Debye Institute, University of Utrecht, Utrecht, the Netherlands) .
... Dissipative Acoustic Nonlinearity of Polycrystalline Zinc . ... The results of experimental investigations of nonlinear damping weak ultrasound pulse under the action of the power low-frequency wave in the polycrystalline zinc nonannealed and annealed resonating rods are presented. ... It is proposed to modify the dislocation Granato-Lucke theory that explains the observed experimental amplitude and frequency dependencies of coefficient of nonlinear damping of the ultrasound pulse. ...
. AUTHOR : Dmitrieva N. P. 1. ааа Nonthermal Impact of High Intensity Ultrasound on a Malignant Tumor . V.A.Burov, O.V.Rudenko (Department of Acoustics, Faculty of Physics, Moscow State University, Moscow, Russia); N.P.Dmitrieva (Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia) .
. AUTHOR : Dorodnitsyn V. 1. ааа Some Generalizations for the Noether Theorem: Differential and Difference Equations . V.Dorodnitsyn (Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Moscow, Russia) .
. AUTHOR : Dreiden G. V. 1. ааа Bulk Solitary Waves of Deformation in Elastic Wave Guides . A.M.Samsonov, G.V.Dreiden, I.V.Semenova, A.V.Porubov (The Ioffe Institute of the Russian Academy of Sciences, St.Petersburg, Russia) .
. AUTHOR : Dreyer T. 1. ааа Nonlinear FDTD-Modeling of Ultrasound Thermotherapy Including Temperature Dependent Tissue Parameters . M.Liebler, S.Ginter, T.Dreyer, R.E.Riedlinger (Institut fuer Hoechstfrequenztechnik und Elektronik / Akustik, University of Karlsruhe, Germany) .
. AUTHOR : Du G. 1. ааа The Harmonic Generation in Bounded Bessel Field . C.Tao, J.Ma, Z.Zhu, G.Du (State Key Lab of Modern Acoustics & Institute of Acoustics, Nanjing University, P.R.China) .
. AUTHOR : Dubus B. 1. ааа Characterisation of the Cavitation Field in an Ultrasonic Reactor . A.Moussatov, C.Granger, B.Dubus (Institut Superieur d'Electronique du Nord (IEMN departement ISEN, UMR CNRS 8520), Lille, France) .
... Dynamic Chaos and Fractals in Speech Rhythm . ... But it's yet rather surprisingly that this especially physical approach has appeared even more productive for explanation of many effects in such far from an engineering area as stuttering. In this paper we show the large-scale Voice/Unvoice temporal structure of normal and destroyed acoustic speech signal possesses the dynamical regimes set. ...
... Dynamics of Collapsing Bubbles: Sonoluminescence and Bubble Fusion . ... When ultrasonically forced oscillating cavitation bubbles implode they can strongly compress the entrapped vapor/gas such that the temperature may become so large that plasma is formed and a visible light pulse is emitted. ... This model has been developed and tested to calculate the dynamics of laser-induced cavitation bubbles [Akhatov et al., ...
... Dynamics of a Bimodal Bubble Cavitation Cluster in a Bipolar Acoustic Pulse . ... The study of cavitation in the convergent acoustic pulse has revealed conditions where two groups of bubbles are formed (micro-bubbles and macro-bubbles which differ from their time of collapse). ... For the pulse compression in the cluster, a strengthening of the collapse of the micro-bubble is observed compared with the collapse in a plane acoustic wave with the same parameters of pressure. ...
. AUTHORS - E . 1. Ebbini E. S. (1) . 2. Eckl C. (1) . 3. Ecotiere D. (1) . 4. Eglit M. E. (1) . 5. Egorychev S. A. (1) . 6. Ekonomov A. N. (1) . 7. Emelianov S. Y. (1) . 8. Enflo B. (3) . 9. Eremin E. V. (1) . 10. Erofeeva O. N. (1) . 11. Erofeyev V. (2) . 12. Erokhin A. I. (1) . 13. Ershova N. V. (1) . 14. Esipov I. B. (1) . 15. Eskin L. D. (1) . 16. Espinosa V. (2) . 17. Evan A. P. (3) .