Krishnan Balasubramaniam

TL;DR: In this article, the authors present a method for the analysis of solar Stokes profiles based on the technique of principal component analysis (PCA) for obtaining estimates of the solar magnetic field vector when the underlying physical parameter distribution is not well determined Unlike previous applications of PCA, they consider separate distributions of the PCA components as applied to the source of the underlying plasma.

TL;DR: Sunspot numbers are important tracers of historical solar activity and are important in predicting the oncoming solar maximum, in the design of lifetimes of space assets, and in assessing the extent of solar-radiation impact on the space environment as discussed by the authors.

TL;DR: An analytical approach for simulation of ultrasonic diffracted wave signals from cracks in two-dimensional geometries based on a novel Huygens-Fresnel Diffraction Model (HFDM), able to evaluate back-wall signal amplitude and lateral wave signal amplitude, quantitatively is presented.

TL;DR: In this article, the size of impact-induced delamination at the bottom interface of a composite laminate, which has been subjected to a low-velocity impact, is estimated using the fundamental symmetric Lamb mode.