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time-domain wave propagation

PubMedCentral-PMC5741097.pdf

PubMedCentral-PMC5741097.pdf

... Time domain finite difference simulations are used extensively to simulate wave ...the wave field on a discrete domain with a grid spacing that is typically on the order of a tenth of a ...

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Investigation of Wave Propagation in Different Dielectric Media by Using Finite Difference Time Domain (FDTD) Method

Investigation of Wave Propagation in Different Dielectric Media by Using Finite Difference Time Domain (FDTD) Method

... in time (the time derivative) is dependent on the change in the H-field across space (the ...FDTD time- stepping relation that, at any point in space, the updated value of the E-field in time ...

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Meshless Time-Domain Method with Modified RPIM-Based Shape Functions for Electromagnetic Wave Propagation Simulation in Complex Shaped Domain

Meshless Time-Domain Method with Modified RPIM-Based Shape Functions for Electromagnetic Wave Propagation Simulation in Complex Shaped Domain

... electromagnetic wave propagation simu- lations ...meshless time-domain method ...electromagnetic wave propagation simulations of complex shaped ...

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A General ADE
-FDTD with Crank-Nicolson Scheme for the Simulation of Dispersive Structures

A General ADE -FDTD with Crank-Nicolson Scheme for the Simulation of Dispersive Structures

... difference time-domain (FDTD) method with Crank-Nicolson (CN) scheme is proposed to model electromagnetic wave propagation in dispersive materials in this ...plane wave ...

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gprMax: open source software to simulate electromagnetic wave propagation for ground penetrating radar

gprMax: open source software to simulate electromagnetic wave propagation for ground penetrating radar

... electromagnetic wave propagation for the numerical modelling of GPR, and is available from ...and time) to solve Maxwell’s equations in 3D using the Finite-Di↵erence Time-Domain (FDTD) ...

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New Essentials of Economic Theory III  Economic Applications

New Essentials of Economic Theory III Economic Applications

... study wave propagation of small disturbances of densities functions of economic variables and ...economic domain (6.1; 6.2). Borders of economic domain establish bound lines for economic ...

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Time domain wave separation using multiple microphones

Time domain wave separation using multiple microphones

... going time domain transfer function 共following an inverse Fourier transform兲 using a theoretical expression for the complex acoustic propagation constant without measur- ing it ...acoustic ...

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Computing with Large Time Steps for Electromagnetic Wave Propagation in Multilayered Homogeneous Media

Computing with Large Time Steps for Electromagnetic Wave Propagation in Multilayered Homogeneous Media

... new wave speed downwind of the ...1D domain Riemann waves, in-principle, can cross multiple dielectric interfaces in a single time step in an LTS ...

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Lattice Boltzmann Modeling of Wave Propagation and Reflection in the Presence of Walls and Blocks

Lattice Boltzmann Modeling of Wave Propagation and Reflection in the Presence of Walls and Blocks

... show wave propagation and reflection ...the wave propagation and its behavior after collision with the solid ...different time steps represent the behavior of wave and the effect ...

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Numerical Modeling of Ultrasound Wave Propagation.

Numerical Modeling of Ultrasound Wave Propagation.

... computational domain. In theory, the power law exponent is 2 in water. However, k-Wave, which is used to generate benchmark solutions, cannot model problems that contain multiple values of power law ...

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Investigation of Numerical Stability of Electromagnetic Wave Propagation Simulation using Meshless Time-Domain Method

Investigation of Numerical Stability of Electromagnetic Wave Propagation Simulation using Meshless Time-Domain Method

... experiments, (40) is satisfied. Nevertheless, the unstable simulations have been observed. Hence, we consider that there are some type of constraints between the node align- ment for E and that for H, although we have not ...

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A 2D Time Domain DRBEM Computer Model for MagnetoThermoelastic Coupled Wave Propagation Problems

A 2D Time Domain DRBEM Computer Model for MagnetoThermoelastic Coupled Wave Propagation Problems

... relaxation time by constructing a new law of heat conduction to replace the classical Fourier's ...relaxation time. Since the heat equation of this theory is the wave-type, it automatically ensures ...

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Parallel Simulation of 3D Wave Propagation by Domain Decomposition

Parallel Simulation of 3D Wave Propagation by Domain Decomposition

... Both fields and laboratory experiments prove that this parameter can be treated as independent on time fre- quency for rather wide frequency range [5]. Therefore the higher is the dominant frequency of a source ...

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New Method in Calculating the Trajectory of Sound Waves at Stratified Ocean

New Method in Calculating the Trajectory of Sound Waves at Stratified Ocean

... reflected wave, [5], considering that its amplitude V at small gradients of sound speed in waveguides is much smaller than the amplitude of the transmitted wave ...During propagation resulting re- ...

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An Investigation of Shock Wave Propagation and Attenuation in the Lower Extremity Using Finite Element Analysis.

An Investigation of Shock Wave Propagation and Attenuation in the Lower Extremity Using Finite Element Analysis.

... termination time for the simulation was defined as 100 ms, as the two main peaks in both the force and acceleration waveforms occurred within this time frame for both the experimental and model ...

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Wave propagation in granular materials

Wave propagation in granular materials

... continuous wave input show good agree- ment with the corresponding experiments (see Section ...that wave propagation in a granular bed is nondispersive, at least within the frequency range ...

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Wave propagation in an inhomogeneous medium

Wave propagation in an inhomogeneous medium

... further away from the axis takes less time to travel from source to receiver than sound energy traveling closer to the axis,.. of sound energy in the sound channel at certain ranges.[r] ...

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Wave propogation scattering due to defect on thin composite plates

Wave propogation scattering due to defect on thin composite plates

... Formation of damage such as matrix cracking sometimes can be seen with the naked eye, however, the damage such as delamination, is a silent killer, in which case, it is almost impossible to detect from the surface of the ...

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Cross Time-Frequency Analysis of Gastrocnemius Electromyographic Signals in Hypertensive and Nonhypertensive Subjects

Cross Time-Frequency Analysis of Gastrocnemius Electromyographic Signals in Hypertensive and Nonhypertensive Subjects

... with time, X, Y , and pressure values for each sampled moment for which a pressure sensor was ...their time instances flagged, as described in Section 2.2. These time instances correspond directly to ...

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Polarization Filtering Method for Suppressing Surface Wave in Time Frequency Domain

Polarization Filtering Method for Suppressing Surface Wave in Time Frequency Domain

... surface wave in three-component seismic explora- tion, according to the polarization characteristics of body wave and surface wave, a time-frequency domain polarization filtering method ...

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