In this study, efficient methods for optimal sensor placement (OSP) based on a new geometrical viewpoint for damage detection in structures is presented. The purpose is to minimize the effects of noise on the damage detection process. In the geometrical viewpoint, a sensor location is equivalent to projecting the elliptical noise on to a face of response space which is corresponding to the sens...

because of production process and constrains conditions, circular graphene sheet may be opposed to structural defect and pin hole, respectively. some of the defects and pin hole on a circular graphene sheet can be considered as an eccentric hole on the sheet. hence, analyzing behavior of circular graphene sheet with an eccentric hole is important. free vibration of an eccentric annular graphene...

A study of the diffusion a passive Brownian particle on surface sphere and subject to effects an external potential, coupled linearly probability density particle's position, is presented through numerical algorithm devised simulate trajectories ensemble particles. The based elementary geometry practically only algebraic operations are used, which makes efficient simple, converges, in \textit{w...

Wide-Angle (WA) synthetic aperture radar (SAR) has shown remarkable performance in high-resolution mapping, and its mostly used imaging algorithm, fast factorized back projection (FFBP), is efficient, robust, of low computational complexity. However, trajectory deviations the system calibration error, introduced by measurement accuracy, dramatically degrade FFBP's performance. This article prop...