Journal ArticleDOI
The Fourier Transform and Its Applications
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This article is published in American Journal of Physics.The article was published on 1966-08-01. It has received 2834 citations till now. The article focuses on the topics: Fourier transform.read more
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Measurement of temperature of an axisymmetric flame using shearing interferometry and Fourier fringe analysis technique
TL;DR: In this article, shearing interferometry and Fourier analysis techniques were used to measure the temperature and temperature profile of a gaseous burner flame, which is expected to give a better accuracy than techniques that use the location of fringe centers because of the complete separation of phase from unwanted irradiance variations.
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Arbitrary magnetic field gradient waveform correction using an impulse response based pre-equalization technique.
TL;DR: A method to directly measure the temporal evolution of the magnetic field gradient from a step-like input function and extracts the system impulse response is outlined, which calculates a pre-equalized waveform that may be accurately reproduced by the amplifier (is physically realizable) and accounts for system limitations.
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Persistent subplasma-frequency kinetic electrostatic electron nonlinear waves
TL;DR: The kinetic electrostatic electron nonlinear (KEEN) wave as mentioned in this paper is a nonlinear wave that is a self-sustaining nonsinusoidal wave train with well-trapped electrons even for frequencies well below the plasma frequency.
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A texture-based interpretation workflow with application to delineating salt domes
TL;DR: In this paper, a texture-based interpretation workflow is proposed to delineate salt domes in 3D migrated seismic volumes, which measures the dissimilarity between neighboring cubes around each voxel in a seismic volume across the time or depth, crossline, and inline directions.
Journal ArticleDOI
Miscible Thermo-Viscous Fingering Instability in Porous Media. Part 2: Numerical Simulations
M. N. Islam,J. Azaiez +1 more
TL;DR: In this paper, full nonlinear simulations of miscible thermo-viscous fingering were carried out using Hartley transform-based Pseudo-spectral method, and the results were in complete qualitative agreement with the ones obtained from Part 1, particularly using the initial value calculations (IVC) approach.