The Electre language has been developed as a resuit of the expérience of the automatic control department in the implementation of the real time control applications. These applications consist of many tasks that are conditionally executed and interrupted according to some events 'occurences. We propose a language semantic and in particular that of its fundamental operators: parallelism of task...

houchang golchiri, écrivain iranien et auteur du prince ehtejab, l’une des œuvres capitales de la littérature moderne persane, a rédigé en 1971 un roman intitulé christine et kid, inspiré largement du nouveau roman français et imité même, sur le plan thématique et structural, de la jalousie d’alain robbe-grillet. l’histoire du roman de golchiri se tisse autour de l’hyperthème de la jalousie, ma...

We consider an integro-differential stiff problem, which can be used as a model for the vibrations of a body with hnear viscoelasticity at large times First, the problem is introduced in the framework of the theory of semigroups in Hubert spaces and then, an asymptotic expansion ofihe solution is obtained Fwally, it is shown the double convergence, when e —• 0 + , ofthe eigenvalues of the probl...

This paper considers large discrete-time linear systems obtained from discretized partial differential equations, and controlled by a quantized law, i.e., a piecewise constant time function taking a finite set of values. We show how to generate the control by, first, applying model reduction to the original system, then using a “state-space bisection” method for synthesizing a control at the re...

Background: Leptin and its receptors have been found in the human gastric mucosa.  Its secretion by gastric mucosa has generated interest in its probable role in the gastrointestinal tract and pathophysiology of diseases. Objective: To determine any possible correlation between serum leptin level and pathological findings in patients with duodenal ulcer (DU). Methods: In a cross-sectional study...

The development and application of a geometrically-based uniformity criterion is presented for film uniformity optimization in a radial-flow GaN epitaxy reactor system. In this multi-wafer reactor system, individual wafers rotate on a rotating susceptor in a planetary motion to reduce the effects of reactant depletion on deposition uniformity; the uniformity criterion developed for this system ...

Introduction Signal intensity uniformity in a magnetic resonance (MR) image indicates how well the MR imaging (MRI) system represents an object. One of the major sources of image non-uniformity in high-field MRI scanners is inhomogeneity of radio-frequency coil. The aim of this study was to investigate non-uniformity in head, head and neck, and body coils and compare the obtained results to det...