What visual information do we use to guide movement through our environment? Self-movement produces a pattern of motion on the retina, called optic flow. During translation, the direction of movement (locomotor direction) is specified by the point in the flow field from which the motion vectors radiate - the focus of expansion (FoE) [1-3]. If an eye movement is made, however, the FoE no longer ...

BACKGROUND In the event of a slip or trip, one's ability to recover a stable upright stance by stepping should depend on (a) the configuration of the body at the instant of step contact and (b) the forces generated between the foot and ground during step contact. In this study, we tested whether these two variables associate with elderly subjects' ability to recover balance by taking a single b...

In this work, a two dimensional (2D) finite element foot model was established from magnetic resonance imaging (MRI) of a male subject. The model comprises first medial planar cross-section through the foot, representing the foot in standing posture. For specified external load, the stress and strain distribution field under foot structure are determined. The material characterization of foot s...

This article describes the process of development of the robotic foot for the six-legged walking robot Messor. In order to allow the robot to negotiate uneven surfaces and to walk on a compliant ground, the foot includes the sensing device which provides information on contact forces between the foot and the ground. At first, the foot with single-axis force measurement unit is described. Next, ...

Abstract Foot impedance plethysmography was implemented using two types of electrodes (dry and capacitive) sole force sensors. The latter are commonly used for assessing diabetic foot ulcers (DFU). For plethysmography, a tetrapolar configuration has been with three different plantar setups: four skin contact electrodes, capacitive Force Sensing Resistors (FSRs). In this work, FSRs have consider...

Foot and Mouth Disease (FMD) is an acute infectious disease that attacks livestock, thus threatening the availability of food husbandry industry. This paper discusses formulation a mathematical model for spread FMD in livestock with saturated incidence rate. The research method used quantitative modeling simulation, stages including problem identification, determining assumptions, formulation, ...

This paper presents a theoretical analysis of the convergence properties of a parameter estimation based cellular neural network algorithm for estimating the time-tocontact from a one dimensional image. The algorithm uses a model of the image motion based upon the assumption that the camera is approaching a planar object oriented parallel to the image plane, which also implies that the time to ...

A numerical model to predict train induced vibrations is presented. The dynamic computation considers mutual interactions in vehicle/track coupled systems by means of a finite and discrete elements method. The rail defects and the case of out-of-round wheels are considered. The dynamic interaction between the wheel-sets and the rail is accomplished by using the non-linear Hertzian model with hy...

We continued the study of the contact homology of subcritical Stein manifolds initiated by Mei-Lin Yau. With the technical assumption that the first Chern class of the Stein domain vanishes, we determined the full contact homology of the boundary of a subcritical Stein domain. Moreover we calculated the genus 0 correlators and descendants of one marked point for the Stein domain. As an applicat...

The purpose of this study was to find the difference in foot pressure patterns when wearing smart walking shoes. Foot pressure measurement is an established tool for the evaluation of foot function [1]. These measurements assess the effect of structural changes, which may occur as a complication of pathologies such as diabetes, and therefore have been suggested as one of the key tools in ulcer ...