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This article gathers the studies and experiments carried out by the authors orientated to the combination of three unimodal systems into a single multimodal system. The fusion strategy used has been the so-called "score fusion" using different algorithms, among them "neural networks" and "support vector machines", etc. All of the experiments have been(More)
Tidal cycles at benthic habitats induce a set of periodic environmental changes in variables like salinity, temperature and sediment water content which are able to stress benthic organisms. Consequently, a natural selection temporally correlated with tides affects the fitness of genotypes (wi) depending on their adaptation degree. Classic population(More)
When all but one coordinates are cyclic in a (conservative) Hamiltonian formulated in the extended phase space, the Hamilton-Jacobi equation is used to compute canonical transformations allowing for Hamiltonian reduction. The procedure includes regularization and provides whole families of canonical transformations, among which one recognizes the familiar(More)
The science orbit for a future mission to Europa requires low eccentricity, low altitude, and high inclination. However , high inclination orbits around planetary satellites are unstable due to third-body perturbations. Without control, the orbiter impacts Europa after few weeks. To minimize control, a tour over the stable-unstable, averaged manifolds of(More)
Electronic traps in a circularly polarized microwave field and a static Lunisolar perturbations are the most important mechanism delivering major Earth-orbiting objects into the upper atmosphere. Resonant lunisolar effects become the most interesting subject as far as the satellites lifetime is considered. Resonances of the mean motion type are not possible(More)
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