The study of loading in the muscle is essential to better understanding the adaptation and plasticity of the muscle under pathologic or surgically-altered conditions. Muscle recruitment and muscle force are determined by the muscle's mechanical function as a joint mover and a joint stabilizer. The coordination of muscle contraction affects joint stability. However, the conditions of the joint p...

ROSE, JOHN G., AND JAY Y. GILLENWATER. Pathophysiology of ureteral obstruction. Am. J. Physiol. 225(4-j: 830437. 1973.Forty-five experiments measuring the force of contractility within the ureteral wall, its wall tension, and the propelling force within its lumen, its intraluminal pressure, were performed on 29 dogs. The parameters of wall tension and intraluminal pressure served as an excellen...

We simulate the evolution of the steady-state interface in the selective withdrawal regime. Selective withdrawal ends when the upward pull exerted by the viscous flow in the withdrawing liquid layer overcomes the downward force due to surface tension. The lower-layer dynamics are unimportant. The dominant contribution to the surface-tension force comes from the large area where the interface is...

In order to control cable-driven parallel robots (CDPRs), it is necessary keep all cable tensions within (positive) known limits during motion. For CDPRs having more cables than end-effector degrees of freedom, a feasible force distribution should be computed beforehand. This paper aims at evaluating how tension error in one affects the overall other cables, by focusing on planar overconstraine...

We present a theory that is able to account quantitatively for the surface and interfacial tensions of different electrolyte solutions. It is found that near the interface, ions can be separated into two classes: the kosmotropes and the chaotropes. While the kosmotropes remain hydrated near the interface and are repelled from it, the chaotropes loose their hydration sheath and become adsorbed t...

We study the nonmonotonic force-extension behavior of helical ribbons using a new model for inextensible elastic strips. Unlike previous rod models, our model predicts hysteresis behavior for low-pitch ribbons of arbitrary material properties. Associated with it is a first-order transition between two different helical states as observed in experiments with cholesterol ribbons. Numerical soluti...

We consider liquid drops or crystals lying in equilibrium under the action of a potential energy. For small masses, the proximity of the resulting minimizers from the Wulff shape associated to the surface tension is quantitatively controlled in terms of the smallness of the mass and with respect to the natural notions of distance induced by the regularity of the Wulff shape. Stronger results ar...