this paper presents a mathematical model for the vibration analysis of a three-component piezoelectric force sensor. the cubic theory of weakly nonlinear electroelasticity is applied to the model for describing the electromechanical coupling effect in the piezoelectric sensing elements which operate in thickness-shear and thickness-stretch vibration modes. hamilton's principle is used to d...

OVER THE PAST 20-30 YEARS, substantial progress has been made in our understanding of dyspnea. We have come to the realization that dyspnea encompasses a number of distinct sensations (16) and that a diverse array of receptors in the chest wall, lungs, airways, and central nervous system may influence the quality and intensity of an individual’s respiratory sensation. In this issue, Edo and col...

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