Acoustic waves
Spectrum of the seismic-electromagnetic and acoustic waves caused by seismic and volcano activity
... of acoustic waves in the lithosphere, but the frequency range is lower and the vertical scales are greater (see Grimalsky et ...tic waves and a nonlinear excitation of the ULF atmosphere- ionosphere ...
7
The Clouds Microstructure and the Rain Stimulation by Acoustic Waves
... of acoustic waves were an interesting idea from the ...intense acoustic waves upon a cloud would initiate the coagulation of the drops which would create a shift of the maximum in the ...
5
Evolution of Surface Acoustic Waves in an Optical Microfiber
... generate acoustic waves. Associated material movements of the acoustic wave cause density variation along the ...and acoustic propagation for phase matching condition can be given as: ...
9
Nonlinear Propagation of Dust Ion Acoustic Waves in a Degenerate Dense Plasma
... dust-ion-acoustic waves in a degenerate dense plasma (with the constituents being degenerate, for both the limits non-relativistic or ultra-relativistic) have been investigated by the reductive perturbation ...
6
Study of Propagation of Ion Acoustic Waves in Argon Plasma
... ion waves could be com- pletely ...ion acoustic waves appear to match closely the properties predicted for the ion acoustic wave ...Ion Acoustic Waves ...
9
Spiky parallel electrostatic ion cyclotron and ion acoustic waves
... Abstract. One of the interesting observations from the FAST satellite is the detection of strong spiky waveforms in the par- allel electric field in association with ion cyclotron oscilla- tions in the perpendicular ...
5
Study of Acoustic Waves in A Phononic – Crystal Plate.
... the acoustic wave modes and verify the results of ...the acoustic waves have not only similar modes as the Lamb modes in a classical plate but also some more complex modes because of the periodic ...
6
Development of a quantitative Schlieren imaging technicque for acoustic waves
... Two types of schlieren set-ups were used and the schematic drawings of which are shown in Fig. 1. The Z-type system features two 0.2m diameter, f/4 parabolic mirrors with a focal length of 1.83m (details available in ...
9
Elastography by NMR Visualization of Acoustic Waves: Overview and Clinical Potential
... To image tissue elasticity, techniques have been developed based on either static (reconstructive) or dynamic (shear wave) approaches. In both, internal displacement and strain due to external or internal load must be ...
11
Opposite Dust on Linear Dust-acoustic Waves
... dust-acoustic waves (L-DAWs) in a dusty plasma consisting of Boltzmann-distributed electrons and ions, mobile charge fluctuating positive and negative dust charge fluctuating stationary positive dust and ...
8
Influence of Viscosity in Fluid Atomization with Surface Acoustic Waves
... Surface Acoustic Wave (SAW) fluid atomizers have the demonstrated ability to gener- ate droplets without the need for moving parts or ...surface acoustic waves on piezoelectric chips was demonstrated ...
11
Surface acoustic waves in two dimensional phononic crystal with anisotropic inclusions
... surface acoustic waves in two-dimensional phononic crystals (PCs) consisting of periodic arrays of cylinders with square shapes embedded in a background ...The acoustic band structures of 2D phononic ...
7
On the temporal analysis of acoustic waves using schlieren imaging
... The acoustic wave visualizations were conducted using a Photron ...of acoustic waves generated from a compression ...near-field acoustic spectra from the underexpanded jet which is the main ...
11
Weakly Nonlinear Quantum Dust Ion Acoustic Waves
... The one-dimensional quantum hydrodynamic (QHD) model for a three-specie quantum plasma is used to study the quantum counterpart of the well known dust ion-acoustic wave (DIAW). It is found that owing to the ...
5
Ion Acoustic Waves in a Unidirected Dusty Plasma
... dust acoustic (DA) waves propagating linearly as a normal mode and non- linearly as supersonic solitons of either positive or negative electrostatic potentials in a dusty plasma with inertial charged dusts ...
7
Characterisation of acoustic waves in optical waveguides
... Acoustic waves propagate due to the periodic displacement of the molecules inside a waveguide and are characterized by the material density, elasticity, Young modulus, and Poisson’s ratio [Auld, ...an ...
233
Transmission of Terahertz Acoustic Waves through Graphene Semiconductor Layered Structures
... d is dependent on the layer number of graphene sheet which is regarded as embedded layer. We note that the interaction between semiconductor and graphene layers is usually the Van de Waals force [19] which is not the ...
12
Artificial boundary conditions for the numerical simulation of unsteady acoustic waves
... of acoustic waves in the far field. The waves subsequently propagate across the unbounded and unobstructed space, which is assumed isotropic and ...the waves, in the solutions of the ...
33
The Effects of Blockage on the Propagation of Acoustic Waves in the Liquid Shell Coupled System
... the acoustic field of the liquid and the vibration of the shell are studied separately, and the wavenumbers of the infinitely long coupling system are obtained by applying Snell’s law at the coupling ...block, ...
7