. AUTHOR : Li H. 1. ааа Sonofluorescence Display in Reflecting a Jetting Ultrasonic Cavitation Field . H.Li (P.O.Box 903, Ji'an City, Jiangxi Province, Ji'an, China) .
. AUTHOR : Liapidevskii V. Yu. 1. ааа Nonlinear Stability of Roll Waves . A.Boudlal (USTL-Lab. Mec.-Lille1, Departent de Mecanique Fondamentale, Villeneuve d'Ascq, France); V.Yu.Liapidevskii (Lavrentyev Institute of Hydrodynamics, Novosibirsk, Russia) . 2. ааа Roll Waves in Gas-Liquid Flows . V.Liapidevskii (Lavrentyev Institute of Hydrodynamics, Novosibirsk, Russia) .
... Lie Group Analysis of Nonlinear Problems . ... Lie group analysis provides a rigorous mathematical formulation of intuitive ideas of symmetry and invariance. These ideas permeate all mathematical models, in particular those formulated in terms of differential or integro-differential equations. ... It augments intuition in understanding and using symmetry properties in mathematical models. Practically, Lie group analysis discloses possible approaches to solving complex problems. ...
. AUTHOR : Liebler M. 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) .
... Limiting Forms of Internal Solitary Waves in a Continuously Stratified Fluid . ... The propagation speed of this wave is close to that of a smooth internal bore. ... The flow in midsection of solitary wave is close to the flow which is conjugate with uniform flow at infinity. ... This situation takes place for Froude numbers close to critical values which correspond to degeneration of a symmetric solitary wave to asymmetric bore. ...
. AUTHOR : Lingeman J. A. 1. ааа Shockwave Lithotripsy (SWL) Induces Significant Structural and Functional Changes in the Kidney . A.P.Evan, B.A.Connors, P.M.Blomgren (Department of Anatomy & Cell Biology, Indiana University, Indianapolis, IN, USA); L.R.Willis (Department of Pharmacology & Toxicology, Indiana University, Indianapolis, IN, USA); J.A.Lingeman (Methodist Hospital Institute for Kidney Stone disease, Indianapolis, IN, USA) .
... L.R.Willis (Department of Pharmacology/Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA); A.P.Evan, B.A.Connors, Y.Shao, P.M.Blomgren (Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA); J.E.Lingeman (Methodist Hospital Institute for Kidney Stone Disease, Indianapolis, IN, USA) . ...
... Linkage of Cavitation with Spall Failure in Lithotripsy: in Vitro and in Vivo Results . ... Theoretically, SW's should be able to break kidney stones via tensile forces produced by internal reflection (spall). ... After 300 SW (20 kV), stones without Mylar showed proximal pitting and distal spall crack, while stones with Mylar showed no pitting and no spall. Model stone cylinders exposed to SW's at different fixed orientations showed a consistent pattern of proximal pitting and distal spall. ...
... Lisa Simulations of Time Reversedultrasonic Experiments . ... Politecnico di Torino, Torino, Italy); P.A.Johnson, J.TenCate (Nonlinear Elasticity Group, Los Alamos National Lab, USA) . ... Several experiments in the last decade have demonstrated the enormous potential of Time Reversed Acoustics (TRA) and Ultrasonics (TRUS) for applications in many fields, such as medicine, materials characterization and oceanography. ...
. AUTHOR : Lisina S. A. 1. ааа Nonlinear Acoustic Waves in Micropolar and Granular Media . I.S.Pavlov, S.A.Lisina, A.I.Potapov (Mechanical Engineering Research Institute of Russian Academy of Sciences, Nizhny Novgorod, Russia) .
... Local Nonlinear and Parametric Effects for Non-Bonded Contacts in Solids . ... A strongly nonlinear behavior of a closed non-bonded contact area in solids for a harmonic drive is associated with two major mechanisms: the lack of symmetry for compression-extension deformations across the interface ("clapping" mechanism) and the nonlinearity of "slide-and-stick" forces between the surfaces in contact (hysteresis mechanism). ...
... Localized Solutions of the Non-Linear Klein-Gordon Equation in Many Dimensions . ... To do it we reduce this partial differential equation in many dimensions to the ordinary differential equation with one complex variable depending on the spatial coordinates, time and free parameters. We investigate this more simple equation. We find the asymptotics of the solution of this equation outside some moving in the space sphere for fixed times and large distance from its center. ...
. AUTHOR : Loginov B. V. 1. Resolving Systems Reduction Possibilities in Stationary Bifurcation Theory . I.V.Konopleva, B.V.Loginov (Department of Higher Mathematics, Ulyanovsk State Technical University, Ulyanovsk, Russia) .
AUTHOR : Lomonosov A. M. 1. ааа Solitary Surface Acoustic Waves . A.Mayer (Institute for Theoretical Physics, University of Regensburg, Regensburg, Germany); A.M.Lomonosov (General Physics Institute, Moscow, Russia); P.Hess (Institute of Physical Chemistry, University of Heidelberg, Heidelberg, Germany); C.Eckl (Infineon Technologies AG, Munich, Germany); A.S.Kovalev (Verkin Institute for Low Temperature Physics and Engineering, Kharkov, Ukraine) . ...
. AUTHOR : Lopez-Martinez L. 1. ааа Comparative Study of Effects of Power Ultrasonic Impact Treatment (UIT) and Other Fatigue Life Improvement Methods for Welded Joints in High Strength Steel and Aluminium Alloys . E.Statnikov, V.O.Muktepavel (Northern Scientific & Technology Company, Severodvinsk, Russia); P.J.Haagensen (Norwegian University of Science and Technology, NTNU, Norway); L.Lopez-Martinez (Swedish Steel AB (currently with TWI, UK)) .
AUTHOR : Lotton P. 1. ааа Interaction of Acoustic and Temperature Fields in Thermoacoustics . M.Bruneau, P.Lotton, V.E.Gusev (Laboratoire d'Acoustique de l'Universite du Maine, UMR CNRS 6613, Universite du Maine, Le Mans, France) . ... G.Penelet, P.Lotton, M.Bruneau (Laboratoire d'Acoustique de l'Universite du Maine, Universite du Maine, Le Mans, France); V.E.Gusev (Laboratoire de Physique de l'Etat Condense, Universite du Maine, Le Mans, France) . ...
... Low-Frequency Backscattering From Focal Area of Focused Beam . ... The report demonstrates experimental investigating of low-frequency diffraction from focal area of various focused beams. Particularly, data are presented on broad-angle diffraction of the result of initial signal (radiopulse) nonlinear transformation in focal area of convergent spherical wave front and cylindrical divergent focused wave front. ...
... Low Frequency Emission by Nonlinear Interaction of Phase Conjugate Ultrasound Waves . ... Low frequency emission (LFE) by means of parametric interaction of ultrasound beams is of interest for various applications in nonlinear acoustic imaging, elastography, vibro-acoustics etc. ... In the present paper, low combination frequency emission by means of nonlinear interaction of phase conjugate ultrasound beams is studied experimentally and theoretically. ...
. AUTHOR : Lu R. R. 1. ааа Measurement of Subharmonics in Liquid Containing Encapsulated Microbubbles . X.F.Gong, R.R.Lu, J.F.Yu (State Key Lab, Institute of Acoustics, Nanjing University, Nanjing, China); W.T.Shi (Department of Radiology and Jefferson Ultrasound Research and Education Institute, Thomas Jefferson University, PA, USA) .