Eduardo Cursi

ABSTRACT This study concerns the computation of eigenelements of random matrices and dynamic frequency responses of linear stochastic mechanical systems. Two new strategies, based on transposing standard deterministic deflated inverse power method and subspace inverse power method into stochastic framework, are introduced via polynomial chaos expansion. Null and repeated-eigenvalue situations are addressed. Effectiveness of the proposed schemes is demonstrated through three simple examples. Mecánica Computacional Vol XXXII, págs. 681-703 (artículo completo)

The objective of this study is to compare the distribution of hospital units according to different degrees of specialization in Santa Catarina State, Brazil, based on an application of the p-median hierarchical model in three levels. The p-median model is used to determine the units' location, following by a comparison of the population's mean distance to reach the medical units in two scenarios, the current one and the simulation. A quantitative indicator of accessibility is proposed and used to assess accessibility according to the current and simulated distributions. The study aims to detect underserved regions and provides a tool to aid health managers' decision-making for possible interventions in the system in order to make it more homogeneous and accessible to the population.

ABSTRACT Strings are unidimensional continuous media with the particularity that their internal efforts are always traction efforts in the tangent direction. The purpose of this Note is to take in account such a specificity in elastic or inextensible statics. We show well-posedness in tension, non-well-posedness in configurations and possibility of untight solutions. Finally, we obtain the physical property that all the configuration wihich realize the equilibrium's field of tensions are solutions of the static problem

Cours d'Introduction aux probabilités et statistiques pour ingénieurs en format PDF: Recensements de caractères numériques, Variables aléatoires, Estimation de Fisher, Echantillons d'une loi de Bernouilli, Echantillons gaussiens, Le test du chi2, Etude numérique de quelques problèmes aux limites, Exercices.

Strings are unidimensional continuous media with the particularity that their internal efforts are always traction efforts in the tangent direction. The purpose of this Note is to take in account such a specificity in elastic or inextensible statics. We show well-posedness in tension, non-well-posedness in configurations and possibility of untight solutions. Finally, we obtain the physical property that all the configuration wihich realize the equilibrium's field of tensions are solutions of the static problem

Strings are unilateral continuous media: all their internal forces are traction forces. This property is essential and must be treated in order to consider entirely or partially untight configurations. Moreover, it introduces fundamental difficulties: both the set of admissible configurations and their internal energy are nonconvex.