[PDF] Top 20 Elastic Wave Scattering from Multiple Voids (Porosity)

... at least under the dilute concentration limits imposed upon this work; a detailed comparison of values obtained from the ultrasonic measurements with visually dete[r] ... See full document

... plane wave incident on a surface with a finite length, and one of the proposed future works is to include the beam model into the theoretical solution and the inverse algorithms as ... See full document

... solitary wave in a split, symmetric layered ...asymptotic multiple-scales expansions and the integrability theory of the Korteweg–de Vries equation by the inverse scattering transform, is used to ... See full document

... P wave dis- placement with a curved moveout and the Rayleigh wave traveling around the sample with a linear ...ranges from 250 kHz to ...Rayleigh wave arrival, we apply an f‐k filter to the ... See full document

... came from very small scattering angles where the FBA was ...distorted wave Born approximation DWBA (Joachain, 1975), the close-coupling method (McCarthy and Weigold, 1995) and R-matrix method (Burke ... See full document

... The electrodes, whose potentials are close to the cathode potential, were mounted at the entrance to the collision chamber and at its exit. This formed a trap for the electrons that lose some of their energy due to ... See full document

... incident elastic waves is required in many areas of industrial importance such as those in non-destructive evaluation and related fields; we develop an approach to generate accurate and rapid ...the ... See full document

... of elastic waves in a heterogeneous ...anisotropic wave velocity and attenuation. Developing an accurate scattering theory to describe the quantitative relation between the microstructure features ... See full document

... obtained from electron-nucleus ...results from the very important fact that they reflect the behavior of wave functions of protons in nuclei, where the charge density distribution is the sum of the ... See full document

... waves from a free boundary of porous elastic half-space was studied by Ciarletta and ...transverse wave can propagate on the solid half-space without ...two elastic media with voids is ... See full document

... in elastic materials with one-dimensional waves because they are simple both from the intuitive and theoretical points of ...dimensional wave equation and deriving its general solution, we show that ... See full document

... the scattering process at the lower energies, ie ’distortion’, ’exchange’ and ...electron wave, from the asymptotic plane wave form assumed in the Born approximation, by the electrostatic ... See full document

... differs from the factorization method established in [5, 28], where the role of the positive part of the middle operator is played by a single layer operator whose kernel is the quasi-periodic fundamental solution ... See full document

... Electromagnetic Scattering from a Sinusoidal Water Wave Yunhua Wang 1, 2 , Yue Yu 1 , Yanmin Zhang 1, * , and Honglei Zheng 1 Abstract—Within the framework of the higher-order Kirchhoff approximation, ... See full document

... 2. Multiple Scattering Simulation Procedure ...SH wave propagation in unidirectional fiber-reinforced compo- sites is ...the elastic fibers (shear modulus 2 , density 2 and radius a) are assumed ... See full document

... sound wave along the pipe ...sound wave travels along the pipe the coating acts to dissipate energy, with the effect of progressively lowering the amplitude of both the incident and reflected sound waves as ... See full document

... Accordingly, it may be concluded that it is very important to accurately identify the shear properties of a viscoelastic material before attempting to model guided wave propagation in coated pipes. However, it is ... See full document

... the wave nature of light, and corresponds to phase level reconstruc- ...dual wave and quantum property, holography is possible not only using the wave properties of light quanta, but also that of ... See full document

... of elastic waves in heterogeneous media has become one of the most important problems in the field of wave propagation due to its broad applications in seismology, natural resource exploration, ultrasonic ... See full document

... benefited from studies of diffraction patterns produced by periodic ...used multiple diffraction gratings (as the one introduced by Rittenhouse and Fraunhoffer) to split the incoming radiation of interest ... See full document