the present research simulates time-periodic unsteady transonic flow around pitching airfoils via the solution of unsteady euler and navier-stokes equations, using time spectral method (tsm) and compares it with the traditional methods such as bdf and explicit structured adaptive grid method. the tsm uses a fourier representation in time and hence solves for the periodic state directly accordin...

Iris recognition is one of the most reliable methods for identification. In general, itconsists of image acquisition, iris segmentation, feature extraction and matching. Among them, iris segmentation has an important role on the performance of any iris recognition system. Eyes nonlinear movement, occlusion, and specular reflection are main challenges for any iris segmentation method. In thi...

Iris recognition is one of the most reliable methods for identification. In general, itconsists of image acquisition, iris segmentation, feature extraction and matching. Among them, iris segmentation has an important role on the performance of any iris recognition system. Eyes nonlinear movement, occlusion, and specular reflection are main challenges for any iris segmentation method. In thi...

The study proposes a framework based on functional analysis of transaction data to predict customer spending during promotional events. Retailers face the challenge of considering an extant number of variables and of accounting for methodological constraints while modeling customer response to promotions. Noise and uneven distribution of spending further introduces error into traditional models...

This paper describes two important questions of semantics, in the context of accuracy in shape interrogation. The first of these questions is how to give meaning to an internally inconsistent solid description based on the widely used trimmed-surface boundary representation. The second question is the meaning of a request, made to a numerical method, to find a solution to a problem whose parame...