Encontrados 5 documentos, a visualizar página 1 de 1
Numerical approaches in a problem of management of hydroelectric resources
Bushenkov, V. A.; Ferreira, M. M. A.; Ribeiro, A. F.; Smirnov, GeorgiIn this paper we consider a simpli ed model for a system of hydro-electric power stations with reversible turbines. The objective of our work is to obtain the optimal pro t of power production satisfying restric- tions on the water level in the reservoirs. Two di erent numerical approaches are applied and compared. These approaches centers on a global optimization technique (Chen-Burer algorithm) and on a Proje...
A decision support system for a multi stakeholder's decision process in a portu...
Garcia-Gonzalo, J.; Palma, J.H.N.; Freire, J.P.A.; Tomé, Margarida; Mateus, R.; Rodriguez, L.C.E.; Bushenkov, V.; Borges, J.G.Aim of study: In this paper, we present a decision support system (DSS) to support decision making where different stakeholders have to generate landscape and forest level strategic plans. We further present an interactive approach that may take advantage of a posteriori preference modelling (i.e. Pareto frontier technique) to facilitate the specification of the levels of achievement of various objectives. Area...
Extended Seismic Source Characterisation using Linear Programming Inversion in ...
Caldeira, B.; Borges, J.F.; Bezzeghoud, M.; Bushenkov, V.; Smirnov, G.A linear programming (LP) inversion method in a dual formulation was applied to reconstruct the kinematics of finite seismic ruptures. In a general setting, this approach can yield results from several data sets: strong ground motion, teleseismic waveforms or/and geodesic data (static deformation). The dual formulation involves the transformation of a normal solution space into an equivalent but reduced space: ...
On the determination of the earthquake slip distribution via linear programming...
Bushenkov, V.; Caldeira, B.; Smirnov, G.The description that one can have of the seismic source is the mani- festation of an imagined model, obviously outlined from Physic Theories and supported by mathematical methods. In that context, the modelling of earthquake rupture consists in finding values of the parameters of the selected physics-mathematical model, through which it becomes possible to reproduce numerically the records of earthquake effects...
Multi-objective water allocation in the Alqueva Region
Fragoso, R.; Bushenkov, V.; Marques, C.A.F.Alqueva dam in the Alentejo Region was developed to solve water scarcity in the South ofPortugal and to ensure pennanent availability ofwater for household and industrial consumption, irrigation, production of electric energy, ecological and environrnental purposes. Competition among some ofthese multiple water uses requires an integrated management framework. This paper uses Interactive Decision Maps (IDM) tec...
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