Interception des précipitations par le couvert forestier

Etude du couvert forestier par processus ponctuels marqués. (Tree crown extraction using Marked Point Processes)

This thesis addresses the problem of tree crown extraction from Colour InfraRed (CIR) aerial images of fo-rests. Our models are based on object processes, otherwise known as marked point processes. These mathema-tical objects are random variables whose realizations are configurations of geometrical shapes. This approachyields an energy minimization problem, where the energy is compo...

Water balance and hydrochemistry of precipitation components in forested eco- systems in the arid zone of Rajasthan, India

The water balance and hydrochemistry of precipitation components in Acacia tortilis and Chlorophospermum mopane forests in the arid zone of Rajasthan, India, were studied for four years (1993-1996). Rainfall and throughfall were measured for each rainfall event during the monsoon season (June-September) using an automatic raingauge and 96 graduated containers, respectively. Stemflow was measure...

Stabilisation des suspensions sporulees de Bacillus anthracis par le soldium ethyl thyiosalicylate

Le traitement de la morve des equides par l'anamorve-sulfadiazine et la malleine-sulfamezathine

Allocation d’objets par des échanges le long d’un réseau social

This article deals with the allocation of objects where each agent receives a single item. Starting from an initial endowment, the agents can be better off by exchanging their objects. However, not all trades are likely because some participants are unable to communicate. By considering that the agents are embedded in a social network, we propose to study the possible allocations emerging from ...