background: heat therapy is one of the natural treatments that can affect the information transferred by the proprioceptive receptors. heat has an effect on the conduction velocity of peripheral nerves, but the exact effect of two kinds of deep and superficial heat on the joint position sense is not known clearly. the present study aimed to compare the effect of deep and superficial heat on ank...

This paper presents the design and performance evaluation of two globally stable time varying kinematic Navigation Kalman filters to estimate linear motion quantities, in three dimensions, with application to underwater vehicles. The proposed technique is based on the linear time invariant Kalman filter steady state solution and employs frequency weights to explicitly achieve adequate wave dist...

A new Kalman-filter based active contour model is proposed for tracking of nonrigid objects in combined spatio-velocity space. The model employs measurements of gradient-based image potential and of optical-flow along the contour as system measurements. In order to improve robustness to image clutter and to occlusions an optical-flow based detection mechanism is proposed. The method detects and...

Light touch contact of a fingertip to a stationary surface provides orientation information that enhances control of upright stance. Slight changes in contact force at the fingertip lead to sensory cues about the direction of body sway, allowing attenuation of sway. In the present study, the coupling of postural sway to a moving contact surface was investigated in detail. Head, center of mass, ...

Being widely used in industrial systems and manufacturing lines, precision position control systems need to use high feedback control gains to reject disturbances. However, phase-lag in velocity estimation resulting from encoder measurement imposes a limitation on maximum allowable feedback gains, when system stability and control smoothness are concerned. In this paper, use of velocities deriv...

Satisfaction N~ith n desired outcome depends both on it .s position li .e ., the actual value of the outcomel and on it .s velocity li .e ., the change in the slue) . In u yrre .stionncrire .study, sve investi,~>ated _/iuuors that in/lnetrce Nre relative x~eikhtiny ofposition crud relocitr In satisfawtion and found that the relative weight of relocity loomed larker x~hen the outcome was lu) fra...

This paper proposes an algorithm for identification of contact conditions between a grasped object and external environment from position and velocity information of a robot hand. The contact conditions mean contact type, contact position, and contact force. Soft finger contact type, line contact type, and plane contact type are considered in addition to point contact type. The contact type is ...

Early extracellular recordings from turtle visual cortex have shown the existence of a wave of depolarizing activity as a response to a localized light ashes presented in the turtle visual eld. Experiments using voltage sensitive dye techniques have supported this observation. The dynamics of the cortical wave might be responsible for encoding the parameters of an unknown input stimulus. We dev...