Water quality management policies on a river basin scale are of special importance in order to prevent and/or reduce environmental pollution caused by human sources. Industrial effluents are a priority issue particularly in Urban Wastewater Systems (UWS) that receive mixed household and industrial wastewaters, apart from rainfall water. In this paper, we present an analysis and implementation o...

Shapiro et al. [2005; 2006], presented a framework for representing goal change in the situation calculus. In that framework, agents adopt a goal when requested to do so (by some agent reqr ), and they remain committed to the goal unless the request is cancelled by reqr . A common assumption in the agent theory literature, e.g., [Cohen and Levesque, 1990; Rao and Georgeff, 1991], is that achiev...

In recent years, several models and algorithms have been put forward for the design of metro networks (see e.g. [1], [7], [2], and [6]). Here we extend the rapid transit network design problem (RTNDP) of [4] by introducing modal competition and by enriching its multi-objective framework. In that reference an origin-destination flow is considered as captured by rapid transit if some stations are...

The Barthelasse alluvial aquifer is used to supply water 180,000 inhabitants. pumping field located less than 200 m from the Rhône and 100% fed by Rhône, which makes it particularly vulnerable any pollution Rhône. Between a Girardon unit, an arrangement that can be found regularly along banks of lower middle reaches whose role stabilise (alluvial deposits) facilitate river navigation. In order ...

AC Biosusceptometry (ACB) was previously employed towards recording gastrointestinal motility. Our data show a reliable and successful evaluation of gastrointestinal transit of liquid and solid meals in rats, considering the methods scarcity and number of experiments needed to endorsement of drugs and medicinal plants. ACB permits real time and simultaneous experiments using the same animal, pr...

The Set Covering Problem SCP is a main model for several important applications including crew scheduling in railway and mass transit companies In this survey we focus our attention on the most recent and e ective algo rithms for SCP considering both heuristic and exact approaches outlining their main characteristics and presenting an experimental comparison on the test bed instances of Beasley...

In this work, a decision tool is developed for a liner shipping company to deploy its fleet considering vessel speeds and to find routes for cargos with transit time constraints simultaneously. This problem is referred as Service level Assignment and Container Routing Problem (SACRP) in the sequel. A Column Generation (CG) algorithm is implemented for the SACRP. Computational experiments are pe...

By considering the zeros of the partit ion function, we establish the following results for the Potts model on the square, triangular, and honeycomb lattices: (i) We show that there exists only one phase transit ion; (ii) we give an exact determination of the critical point; Off) we prove the exponential decay of the correlation functions, in one direction at least, for all temperatures above t...