Search Results - "Santos, E.T.F."

L- and Θ-curve approaches for the selection of regularization parameter in geophysical diffraction tomography by Santos, E.T.F., Bassrei, A.

“…Since inverse problems are usually ill-posed it is necessary to use some method to reduce their deficiencies. The method that we choose is the regularization…”
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Analysis and design of subwavelength focusing by cylindrical lenses by Rodriguez-Esquerre, V.F., Rego, D.F., Santos, E.T.F., Rubio-Mercedes, C.E., Pereira, C.A., Hernandez-Figueroa, H.E.

“…We present the design and analysis of subwavelength lenses based on air cylindrical waveguides surrounded by metal for the focusing of light in very small…”
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A proposal of random excitation for the elements of a circular array by Silva, F.G.S., Rodriguez-Esquerre, V.F., Araujo, J.M., de Castro, A.C., Santos, E.T.F.

“…The study about generation methods of antennas array coefficients should attend two importants objectives. The first is the variation excitation coefficients…”
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