Results 31 to 40 of about 924,944 (328)
Inferring Drumhead Damping and Tuning from Sound Using Finite Difference Time Domain (FDTD) Models
Acoustics, 2023 Percussionists use a multitude of objects and materials, mounted on their instruments, to achieve a satisfying sound texture. This is a tedious process as there are no guidelines suggesting how to manipulate a percussion instrument to adjust its ...
Chrisoula Alexandraki +3 more
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Applied Sciences, 2021 Most simulations involving metamaterials often require complex physics to be solved through refined meshing grids. However, it can prove challenging to simulate the effect of local physical conditions created by said metamaterials into much wider ...
Eric Ballestero +6 more
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Stability analysis of second- and fourth-order finite-difference modelling of wave propagation in orthotropic media [PDF]
, 2010 The stability of the finite-difference approximation of elastic wave propagation in orthotropic homogeneous media in the three-dimensional case is discussed.
Veres, Istvan
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Quantum Electromagnetic Finite-Difference Time-Domain Solver [PDF]
Quantum Reports, 2020 We employ another approach to quantize electromagnetic fields in the coordinate space, instead of the mode (or Fourier) space, such that local features of photons can be efficiently, physically, and more intuitively described. To do this, coordinate-ladder operators are defined from mode-ladder operators via the unitary transformation of systems ...
Dong-Yeop Na, Weng Cho Chew
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Finite Difference Time-Domain Modelling of Metamaterials: GPU Implementation of Cylindrical Cloak
Advanced Electromagnetics, 2013 Finite difference time-domain (FDTD) technique can be used to model metamaterials by treating them as dispersive material. Drude or Lorentz model can be incorporated into the standard FDTD algorithm for modelling negative permittivity and permeability ...
A. Dawood
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Modelling metallic discontinuities with the non-orthogonal finite difference time domain method [PDF]
, 2004 Numerical electromagnetic models, such as the finite difference time domain (FDTD) method, have many applications. The authors focus on the non-orthogonal FDTD method, which offers an improved geometric flexibility compared to other standard techniques ...
C.J. Railton +7 more
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Finite difference time domain simulation of the Earth-ionosphere resonant cavity: Schumann resonances [PDF]
, 2005 This paper presents a numerical approach to study the electrical properties of the Earth's atmosphere. The finite-difference time-domain (FDTD) technique is applied to model the Earth's atmosphere in order to determine Schumann resonant frequencies of ...
Craddock, IJ +5 more
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Finite-difference time-domain modelling of photonic crystal structures [PDF]
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488), 2002 The usual, highly efficient, modelling tools for planar optical devices are generally not suitable for modelling photonic crystal structures. For example, the beam propagation method fails when applied to these strongly scattering structures since presumptions are made on the propagation direction of the waves. The finite-difference time-domain method (
de Ridder, René M., Stoffer, Remco
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Subcell Treatment of Sloped Interfaces between Debye Materials in the FDTD Method
Journal of Amasya University the Institute of Sciences and Technology, 2020 This paper presents the application of the subcell technique for the treatment of sloped interface in finite-difference time-domain method. The technique is based on the averaging of permittivities in each cell crossed by the material interface.
Kenan Tekbas
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