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In this work, we study the capability of the ground surface to generate Persistent Scatterers (PS) based on the lithology, slope and aspect angles. These properties affect the scattering behavior of the Synthetic Aperture Radar (SAR) signal, the interferometric phase stability and, as a consequence… |
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We prove global existence and uniqueness of smooth solutions to a
nonlinear system of parabolic equations, which arises to describe the evolution
of the chemical aggression due to the action of sulphur dioxide on calcium
carbonate stones. This system is not strongly parabolic and only some energy… |
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Twisted gravitational waves (TGWs) are nonplanar unidirectional Ricci-flat solutions of general relativity. Thus far only TGWs of Petrov type II are implicitly known that depend on a solution of a partial differential equation and have wave fronts with negative Gaussian curvature. A special Petrov… |
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The features of the scattering of massive
neutral
particles propagating in the field of a gravitational plane wave are compared with those characterizing their interaction with an electromagnetic radiation field.
The motion is geodesic in the former case, whereas in the case of an electromagnetic… |
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Risultati di un sondaggio sulla rivista Archimede |
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Nel presente lavoro si studia lo scheduling nelle celle robotizzate in presenza di un braccio meccanico che deve eseguire operazioni di load, process e unload su macchine a controllo numerico. Viene studiata la complessità del problema quando l'obiettivo è la minimizzazione del tempo di… |
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A Riemannian manifold optimization strategy is proposed to facilitate the relaxation of the orthonormality constraint in a more natural way in the course of performing
independent component analysis (ICA) that employs a mutual information-based source-adaptive contrast function. Despite the… |
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Il Progetto Finalizzato "Sistemi Informatici e Calcolo Parallelo" è stato negli ultimi anni l'unica iniziativa a livello nazionale che ha avuto come obiettivo fondamentale lo sviluppo di ricerche avanzate e di prodotti innovativi nel campo dell'informatica, con particolare riferimento anche al… |
