Wall shear stress (WSS) is one of the most studied hemodynamic parameters, used in correlating blood flow to various diseases. The pulsatile nature of blood flow, along with the complex geometries of diseased arteries, produces complicated temporal and spatial WSS patterns. Moreover, WSS is a vector, which further complicates its quantification and interpretation. The goal of this study is to i...

PURPOSE Hemiplegia is a paralysis on one side of the body resulting from disease or injury to the motor centers of the brain that may lead to difficulty in walking and problems in balance. A new methodology for hemiplegia gait patterns classification based on bicluster analysis, which aims to identify a group of patients with similar gait patterns, and verify if spatial-temporal gait parameters...

The study of how visual processing functions in the absence of visual awareness has become a major research interest in the vision-science community. One of the main sources of evidence that stimuli that do not reach conscious awareness—and are thus ‘‘invisible’’— are still processed to some degree by the visual system comes from studies using continuous flash suppression (CFS). Why and how CFS...

1 In this paper, we present a spatio-temporal event based approach to video signal analysis and abstraction employing wavelet transform features. The video signal is assumed to be a sequence of overlapping independent visual components called events, which typically are temporally overlapping compact functions that describe temporal evolution of a given set of the spatial parameters of the vide...

Let $$(X, \mathcal{B}, \mu, T)$$ be a dynamical system where X is compact metric space with Borel $$\sigma$$ -algebra $$\mathcal{B}$$ , and $$\mu$$ probability measure that ergodic respect to the homeomorphism $$T \colon \to X$$ . We study following differentiation problem: Given $$f \in C(X)$$ $$F_k \mathcal{B}$$ $$\mu(F_k) > 0$$ when can we say $$\lim_{k \infty} \frac{\int_{F_k} ( \frac{1}{k}...

Aquifer heterogeneity controls spatial and temporal variability of reactive transport parameters and has significant impacts on subsurface modeling of flow, transport, and remediation. Upscaling (or homogenization) is a process to replace a heterogeneous domain with a homogeneous one such that both reproduce the same response. To make reliable and accurate predictions of reactive transport for ...

Heavy metal pollution dispersion simulation in rivers and predicting spatial and temporal variations of pollutants can be used to determine the precise place and to schedule water withdrawal time for drinking, agriculture, aquaculture and ecosystem studies. To study the movement of heavy metal pollution through Karoon flow model, MIKE 11 was employed fpr simulation of the flow model of Karoon R...