In this paper we introduce a stability radius for a wide class of linear innnite-dimensional time-varying systems under structured time{varying perturbations. A framework is presented which allows the same degree of unboundedness in the perturbations as in the generator of the nominal model.

We extend the notion of a spectral scale to n-tuples of unbounded operators affiliated with a finite von Neumann Algebra. We focus primarily on the single-variable case and show that many of the results from the bounded theory go through in the unbounded situation. We present the currently available material on the unbounded multivariable situation. Sufficient conditions for a set to be a spect...

background laceration of the hand extensor tendons is common in the upper extremities, causing soft tissue trauma. these tendons, because of their superficial location and lying adjacent to bones, have a greater tendency to be injured than flexor tendons. objectives the aim of this study was to determine the results of primary repairs of lacerated extensor tendons of the fingers, with respect t...

introduction: topographic anatomy of the tendons and ligaments in healthy cases provides a normal atlas to diagnose abnormalities. the aim of this study was to provide ultrasonography description of the palmar tendons and ligaments of the anatoly donkey. methods: the metacarpal regions of 6 healthy anatoly donkeys were prepared for ultrasonography and divided to 6 levels (1a, 1b, 2a, 2b, 3a, 3b...

Reduplication, the remaining problem in computational morphology is a morphological process that involves copying the base form wholly or partially. Reduplication can also be classified as either bounded or unbounded reduplication. Some solutions have been proposed for bounded reduplication. Some of the proposed solutions use ordered replace rules while others use simultaneous two-level rules. ...

In this paper, it is shown that the usual sub-domains methods which are eecient in the case of elliptic problems have some defects in the case of propagation problems. In a second part, a new method is presented and analysed. It is shown that this method is well conditioned and that the local problems are always regular. Furthermore, it can be applied to propagation in unbounded domains. Une mm...

From among the diverse meanings of stability, the one the author adopts here is that the effects of a perturbation are opposed, and therefore small effects remain small. Except in linear systems, however, instability need not lead to unbounded motion and may actually be desirable when maneuverability is important. Moreover, properties of nerves, muscles, and tendons present serious challenges t...

Abstract Post-tensioned precast concrete walls are an attractive research trend in structural engineering, which replaces cast-in-place earthquake-prone buildings. Precast use mild steel and high-strength post-tensioning for flexural resistance. Mild reinforcement yields tension compression, dissipating inelastic energy. Unbounded tendons used inside the wall to give self-centering capability, ...

Wave propagation in unbounded layered media with a new formulation of Axisymmetric Scaled Boundary Finite Element Method (AXI-SBFEM) is derived. Dividing the general three-dimensional unbounded domain into a number of independent two-dimensional ones, the problem could be solved by a significant reduction in required storage and computational time. The equations of the corresponding Axisymmetri...

abstract traumatic rupture of the distal biceps tendon is rare. conservative treatment can result in reduced flexion and supination power with reduced function. this case report emphasizes the need for prompt surgical treatment and describes the possible complications of delayed surgical intervention.