1,721,226 research outputs found
Calibrazione di un Modello di formazione dei Sottoprodotti della Disinfezione (DBPs)Il caso studio dell'Acquedotto Aurunci-Valcanneto
No full textLa disinfezione delle acque comporta, di norma, la formazione di sottoprodotti che possono avere effetti negativi sulla salute. Per tale motivo la Normativa vigente in Italia impone per le acque potabili delle soglie massime di concentrazione di tali prodotti da rispettare alla consegna all’utenza. D’altro canto il trattamento di disinfezione deve assicurare la presenza di concentrazioni minime di disinfettante residuo.
Il rispetto contemporaneo di tali limiti necessita della conoscenza delle cinetiche di decadimento del disinfettante e di formazione dei sottoprodotti. Lo scopo del presente lavoro è quello di fornire un contributo a tale conoscenza, presentando la costruzione di un modello idraulico e di qualità per il sistema acquedottistico degli Aurunci–Valcanneto in provincia di Frosinone. La calibrazione del modello di qualità, effettuata usando numerose misure di campo, consente considerazioni sul tipo di cinetica da utilizzare e sui valori da assegnare alle costanti
A new paradigm for the enjoyment and exploitation of cultural heritage based on spatial augmented reality: The case of the Ducal Palace of Urbino
No full textIn the last years, museums have begun to apply new technological solutions to manage their exhibits in a more open, inclusive, and creative way, to improve the visitors' experience to respond to the need to expand the audience. The main goal is to face the increasing competition in an economy referred to as the “Experience Economy”. To this end, Augmented Reality technology seems to represent a good solution for museum guide systems, to improve visitors' learning and enjoyment. In this context, the present paper proposes a museum guide system based on Spatial Augmented Reality powered by dynamic projection. The paper describes the overall HW and SW system architecture and reports in detail the developed process adopted to design and implement a museum guide and entertainment application, in the context of the “Studiolo of Federico da Montefeltro” in the Ducal Palace of Urbino. A preliminary survey has been carried out, which involved a total of 79 subjects, aimed at investigating the quality of visitor's experience, aroused by the proposed application, in terms of the “Four Experience Realms” defined by Pine & Gilmore (1998). Results suggest that the proposed application can be used to stage experiences that satisfy the visitors and may help to enable museums into the Experience Economy
Discussion of “Divergence Form for Bed Slope Source Term in Shallow Water Equations” by Alessandro Valiani and Lorenzo Begnudelli
No full textDiscussion of "Divergence Form for Bed Slope Source Term in Shallow Water Equations" by Alessandro Valiani and Lorenzo Begnudelli. Journal of Hydraulic Engineering, Vol. 132, No. 7, July 1, 2006.
No full textThe authors are to be congratulated for the scheme that they have
developed: it is conceptually simple and extremely effective in
dealing with shallow flows over complex topographies. The discussers
are working on a scheme with similar properties and features;
which has been derived from a different approach.
One of the topics that the discussers explicitly address in the
paper they are currently developing is the treatment of partially
wet cells, which the authors also point out to be a delicate task in
the solution of many shallow water flows. The discussers have
worked out a way to address this point that would work very well
also when applied to the scheme used in the paper under discussion.
The discussers are here contributing this simple modification
that addresses the partially wet-cells problem in a consistent manner
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