1,720,979 research outputs found
Numerical and Experimental analysis of long range guided waves for NonDestructiveTesting of pipes
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Wavelet based characterization of defects for long range guided waves NonDestructiveTesting of pipes
No full textEM scattering by a wedge buried in a lossy medium: a UTD solution for the field in the lossy half-space
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Extension of the UTD for analyzing the scattering from objects buried in lossy media
No full textA Uniform Geometrical Theory of Diffraction (UTD) soltution is presented for the field scattered by a perfectly conducting (PC) wedge buried in a lossy medium. The field is evaluated in the lossy half-space. Specific attention is devoted to the contribution of the lateral wave shadow boundar. The accuracy of the asymptotic solution is checke thorugh numerical comparisons with reference data obtained by a method of Moments (MoM) solution
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