703 research outputs found
La Vestale 'incesta'
No full textMarcello Salvadore: La Vestale incesta.
Dionysius of Halicarnassus, Pliny the Younger and Plutarch are the sources
of a detailed account of Vestalis incesta’s punishment: they say that she was
sentenced to death. Dionysius adds that there was no after death ritual.
Modern scholars generally accept what the three authors assert. In this article
the author surmises that the Vestalis incesta, together with the parricida, was
not condemned to death: both of them were sentenced to a particular kind
of banishment from the Society
De Lope a Celano: la adaptación italiana de "Los tres diamantes"
No full textAbstract
This paper explores an Italian adaptation of Lope de Vega’s play Los tres diamantes, written in the
second part of the seventeenth century. Its author, Carlo Celano, was a famous writer of opere regie,
i.e., adaptations of Spanish comedies of situation. The analysis focuses on the way in which the
adaptation of the Aristotelian units of space and time leads to a reduction of the characters and a
simplification of the situation, although this is compensated by enriching its ludic component. This
last trait can be also observed in a previous re-elaboration of Lope’s comedy, the scenario of the
Commedia dell’arte titled Il cavaliere dai tre gigli d’oro
Barriere Lagrangiane superficiali nel Golfo di Trieste
No full textUn problema di grande importanza nell’Ingegneria Ambientale consiste nella previsione del trasporto e della concentrazione di contaminanti rilasciati all’interno di un corpo idrico, per garantire la conservazione della sua naturalità da un punto di vista ecologico (preservazione della risorsa) e naturalistico (conservazione di flora e fauna). Tali problemi di mescolamento si differenziano in funzione delle caratteristiche del moto del fluido stesso (moto laminare o turbolento, presenza di convezione e dispersione) e vengono generalmente affrontati tramite lo schema diffusivo alla Fick. Chiaramente la conoscenza delle velocità del campo di moto gioca un ruolo fondamentale nell’impostazione di tali problemi. E’ però vero che la conoscenza del campo di velocità in ogni punto e in qualsiasi istante temporale risolve effettivamente qualsiasi problema legato al moto di un fluido? In verità, le informazioni di maggiore interesse, ovvero legate al trasporto di materia nel campo di moto, derivano dalla conoscenza del campo di velocità, ma non sono contenute già direttamente in esso
LAGRANGIAN SIMULATIONS OF DRIFTER TRAJECTORIES ADOPTING A NEW EXPLICIT EXPRESSION FOR EDDY DIFFUSIVITIES
No full textLagrangian Coherent Structures in the Trieste gulf.
No full textOne serious issue in Environmental Science and Engineering concerns the prediction of the fate of contaminants released in a water body. A possible way to tackle this problem consists in forecasting pollutant trajectories from velocity-field data sets obtained by measurements or numerical simulations. A shortcoming of such a traditional approach is the high sensitivity to initial conditions. Another way to understand transport in complex fluid flows comes from a new mathematical tool: Lagrangian Coherent Structures (LCS). The idea of using Lagrangian Structures rose as a meeting point between non-linear dynamics and fluid mechanics. It provides the means to identify material lines that shape trajectory patterns, dividing the flow field into regions with different dynamical behaviours.
The objective of this study is the detection of Lagrangian Coherent Structures in the Gulf of Trieste. LCS are calculated from the 2D surface velocity field measured by the coastal radars of the TOSCA (Tracking Oil Spills & Coastal Awareness network) project. Blobs of simulated particles are subjected to chaotic stirring (transport and stretching) that is in agreement with the detected LCS.
In the TOSCA project drifters were deployed, too. Therefore, a simple simulation of some of these drifters was carried out. The trajectory of the simulated drifters diverge from the real one: this result is due to the chaotic transport of passive tracers. However, the separation becomes more evident when velocity fields are less accurate because of lack of measurements, previously filled with nearest neighbourhood interpolation. In the light of such results, the use of LCS could be helpful in understanding the trajectory followed by drifters and passive tracers in general, because they can point out the directions along which transport is likely to develop
High resolution stereo imaging of sea waves for validation and optimization of nearshore dynamics modelling
No full textDue note critiche
No full textMarcello Garzaniti
Answers to Criticism
The author answers to the critics of M. Capaldo and A.Giambelluca Kossova with the aim to bring the different proposed questions back into the sphere of scientifi c dialogue
Influence of initial conditions on absolute and relative dispersion in semi-enclosed basins.
No full textAbsolute and relative dispersion are fundamental quantities employed in order to assess the mixing strength of a basin. There exists a time scale called Lagrangian Integral Scale associated to absolute dispersion that highlights the occurrence of the transition from a quadratic dependence on time to a linear dependence on time. Such a time scale is commonly adopted as an indicator of the duration needed to lose the influence of the initial conditions. This work aims to show that in a semi-enclosed basin the choice of the formulation in order to calculate the absolute dispersion can lead to different results. Moreover, the influence of initial conditions can persist beyond the Lagrangian Integral Scale. Such an influence can be appreciated by evaluating absolute and relative dispersion recursively by changing the initial conditions. Furthermore, finite-size Lyapunov exponents characterize the different regimes of the basin
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