Réactivité hétérogène entre des particules modèles d'aérosols marins et des atomes de chlore

Evaluation de l'apport des aspects, des sujets et des vues pour la composition et la réutilisation des modèles

The reuse, the evolution or the fast adaptation of the code of an application are among the strongest concerns of companies. Model engineering tries to bring a solution putting the model in the center of the software development and by capturing the business know-how initially described in the code of the application. This approach has the advantage to make the description independant of softwa...

Centre de Physique des Particules de Marseille

Qualité des langages de modélisation et des modèles : vers un catalogue des patrons collaboratifs

The quality of modeling languages and models as well as their evaluation are an important concern for the designer. Moreover, the proliferation of quality concepts’ definition and the large number of works that appear every day, require the structuring and the pooling of knowledge of this field. In this paper, we propose a collaboratif patterns’ system that capitalizes the knowledge on the qual...

Etude analytique de l'immunoprophylaxie de l'agalaxie contagieuse des chèvres et des moutons

CEA, DAPNIA, Service de Physique des Particules,

The QCD dipole picture allows to build an unified theoretical description-based on BFKL dynamics-of the total and diffractive nucleon structure functions measured at HERA. We use a four parameter fit to describe the 1994 H1 proton structure function F 2 data in the low x, moderate Q 2 range. The diffractive dissociation processes are discussed within the same framework, and a 6 parameter fit of...