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Guelma, Algeria

Djebar Y.,Annaba University | Djebar Y.,University of 08 Mai | Guersi N.,Annaba University | Kimour M.T.,Annaba University
Studies in Computational Intelligence | Year: 2013

Modeling evolving variability has always been a challenge for software Product line developers. Indeed, the most recent approaches discuss the problem with the architecture aspect through languages or models. Despite the contributions of these approaches, they have not discussed the possibility to represent the evolving Product line variability with the current UML role given that the latter was designed for a single software system. In this paper, we focused on the use of the concept of evolving role resulting from the adaptation of UML role to represent the evolving variability in the software product line. © Springer International Publishing Switzerland 2013. Source


Imene D.,University of 08 Mai | Leila N.,University of 08 Mai | Haiahem Sakina M.F.,University of 08 Mai | Abdelaziz B.,University of 08 Mai | Djameleddine K.,University of 08 Mai
Comptes Rendus Chimie | Year: 2013

The structural aspects for the complexation of ortho-anisidine (O-AN)/β-cyclodextrin were explored by using PM6, density function theory B3LYP/6-31G*, M05-2X/6-31G*, B3PW91/6-31G*, MPW1PW91/6-31G*, HF/6-31G* methods and several combinations of ONIOM2 hybrid calculations. Calculations were performed upon the inclusion complexation of β-cyclodextrin (β-CD) with neutral (O-AN1) and cationic (O-AN2) species of ortho-anisidine. The obtained results with PM6 method clearly indicate that the formed complexes are energetically favored, the complex of O-AN2/β-CD in B orientation is significantly more favorable than the others energetically. The structures show the presence of several intermolecular hydrogen bond interactions that were studied on the basis of natural bonding orbital (NBO) analysis, employed to quantify the donor-acceptor interactions between ortho-anisidine and β-CD. © 2013 Académie des sciences. Source

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