Concentrations of airborne chemical and biological agents from a hazardous release are not
spread uniformly. Instead, there are regions of higher concentration, in part due to local …

While the Internet has made great progress in facilitating modern life, the importance of
protecting information security becomes increasingly prominent. In this research, a novel …

Lagrangian techniques, such as the finite-time Lyapunov exponent (FTLE) and hyperbolic
Lagrangian coherent structures, have become popular tools for analyzing unsteady fluid …

The transport of material through the atmosphere is an issue with wide ranging implications
for fields as diverse as agriculture, aviation, and human health. Due to the unsteady nature …

In non-ideal vibratory system, the excitation is a nonlinear function of system response. The
dynamic behavior of such system is often characterized by an energy source with limited …

Even the most simplified models of falling and gliding bodies exhibit rich nonlinear
dynamical behavior. Taking a global view of the dynamics of one such model, we find an …

Coulomb thrusting presents attractive prospects in many astronautical missions from the
standpoint of close-proximity formation flying. In this study, a dynamical model of Coulomb …

(WSS) in intracranial aneurysm development/rupture and the action of
contraction/expansion played by shear forces on vessel wall make topological skeleton …

Identification of individuals at risk of falling is important when designing fall prevention
methods. Current measures that estimate gait stability and robustness appear limited in …

Abstract The theory of Lagrangian Coherent Structures (LCS) enables prediction of material
transport by turbulent winds, such as those observed in the Earth's Atmospheric Boundary …