L’impact Des Systèmes D’information Sur La Performance Des Chaines Logistiques: Une Revue De Littérature

In the context of global competition which is characterized by a variety of products, short life cycles, and a competitive pressure between the supply chains, the cooperation and collaboration between companies has become very crucial. These collaborative relations improve the coordination of activities within the supply chains and have resulted to a higher performance through the use of information systems. These information systems have enabled it to face the rise in the complexity of the logistics sector which was born out of the information. To better position our contribution, we made a review of the literature and defined the variables and the hypotheses of this research work

Comparison of climate change impacts on the recharge of two karst systems computing different modelling approaches

International audienceKarst systems constitute aquifers in which infiltration and groundwater flows are generally complex processes and are characterized by limited knowledge in terms of geometry and structure. Nonetheless, they often represent interesting groundwater resources, some of them being subjected to intensive exploitation and others non exploited due to their poor understanding. In the future, it is likely that climate change impact on water resources will increase the interest for such a kind of aquifers due to their strong infiltration and storage capacity, in a broad context of higher water scarcity.The Lez and the Lison karst systems in Southern and Eastern France, respectively, provide 2 examples of such systems of several km² under two contrasted climate conditions, the first one being heavily exploited. This study presents a comparative climate change assessment onboth karst systems. Nine climate scenarios corresponding to the Fourth assessment report of the IPCC (SRES A1B scenario), downscaled using weather-type methods by the CERFACS, have been applied to various recharge modelling approaches, as standard analytical solutions of recharge estimation and soil-water balance models. Results are compared and discussed in order to assess the influence on climate change impacts of i) the climate conditions(geographic location), ii) the groundwater exploitation and iii) the modelling approach