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On the optimal control of a cascade of hydro-electric power stations
Ribeiro, A. F.; Guedes, M. C. M.; Vilela, S.; Smirnov, GeorgiIn this paper we consider a model for a cascade of hydroelectric power stations where some of the stations have reversible turbines. The objective of our work is to optimize the profit of power production satisfying restrictions on the water level in the reservoirs. The problem is considered in the framework of discretetime optimal control and is solved using numerical methods. The optimization uses real data o...
On the evaluation of a public transportation network quality : criteria validat...
Guedes, M. C. M.; Oliveira, Natália; Santiago, Sérgio; Smirnov, GeorgiA public transportation network serves in adequate way a population if it evolves in time following the existent social reality. Changes made in order to improve service must be analyzed and evaluated. The introduction of modern technology to validate the fare card allowed a quick access to important, although incomplete, data. A data basis with the validation information can be used to construct an origin-dest...
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