Yingying Wu, Matthew Williams, Sophie Bernard, Azeddine Driouich, Allan M. Showalter, and Ahmed Faik From the Department of Environmental and Plant Biology and the Molecular and Cellular Biology Program, Ohio University, Athens, Ohio 45701 and the Laboratoire “Glycobiologie et Matrice Extracellulaire Végétale,” Université de Rouen, UPRES-EA 4358, IFRMP 23, UFR des Sciences et Techniques, F-7682...

Ce travail considère, décrit et discute l’implémentation de l’AHP-Tutor, un Système Tutoriel Intelligent (STI) enseignant divers concepts et méthodes de dérivation des priorités d’une matrice des comparaisons de l’AHP. Le but de notre système est de proposer des exercices. La théorie correspondante doit être acquise de façon traditionnelle en classe, par des livres ou par un enseignement assist...

fifty years ago warren and root have introduced the shape factor. this fundamental parameter for modeling of naturally fractured reservoirs has been discussed stormily ever since. different definitions for shape factor have been suggested which all of them are heuristically based. recently, heinemann and mittermeir mathematically derived - based on the dual-continuum theorem assuming pseudo-ste...

We consider the solution of sparse linear systems using direct methods via LU factorization. Unless the matrix is positive definite, numerical pivoting is usually needed to ensure stability, which is costly to implement especially in the sparse case. The Random Butterfly Transformations (RBT) technique provides an alternative to pivoting and is easily parallelizable. The RBT transforms the orig...

In this paper, we are concerned about computing in parallel several entries of the inverse of a large sparse matrix. We assume that the matrix has already been factorized by a direct method and that the factors are distributed. Entries are efficiently computed by exploiting sparsity of the right-hand sides and the solution vectors in the triangular solution phase. We demonstrate that in this se...

Novel carbon fiber enzyme electrodes were constructed and evaluated. Fabrication of was performed via electrochemical deposition a conducting matrice composed polythiophene polypyrrole (PTh–PPy) onto substrates. The entrapped into the matrix during electropolymerization. Resultant biosensors represented higher kinetic parameters, Vmax Km, in comparison to PPy matrice, which are 2.471 ± 0.150 m...