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Accurate calculation of the eigenvalues of non-uniforms strings and membranes
(Versita, 2012-11)
We describe a pseudospectral approach which combines a mapping procedure with the principle of minimal sensitivity to obtain accurate estimates for the eigenvalues of non-uniform strings and both uniform and nonuniform ...
GPU parallelization of a hybrid pseudospectral geophysical turbulence framework using CUDA
(Molecular Diversity Preservation International, 2020-02)
An existing hybrid MPI-OpenMP scheme is augmented with a CUDA-based fine grain parallelization approach for multidimensional distributed Fourier transforms, in a well-characterized pseudospectral fluid turbulence code. ...
Chebyshev series for designing rf pulses employing an optimal control approach
(2004)
Magnetic resonance imaging (MRI) provides bidimensional images with high definition and selectivity. Selective excitations are achieved applying a gradient and a radio frequency (RF) pulse simultaneously. They are modeled ...
Chebyshev series for designing RF pulses employing an optimal control approach
(2004)
Magnetic resonance imaging (MRI) provides bidimensional images with high definition and selectivity. Selective excitations are achieved applying a gradient and a radio frequency (RF) pulse simultaneously. They are modeled ...