Search results for " Tori"
showing 10 items of 21 documents
Particle distribution in dilute solid liquid unbaffled tanks via a novel laser sheet and image analysis based technique
2013
The availability of experimental information on particle distribution inside stirred tanks is a topic of great importance for many industrial applications such as catalysis and polymerization. The measurement of solid particle distribution is not simple and the development of suitable measuring techniques is still an open problem in chemical engineering research. In this work, a non-intrusive optical technique for measuring particle concentration fields in solid–liquid systems is discussed. The “Laser Sheet Image Analysis” (LSIA) technique described here makes use of a laser sheet, a digital camera for image acquisition and a suitable procedure for post-processing. It is able to provide sol…
Infrastructure as interface. Thinking the urban and the high -speed station: italian case-studies.
2011
This presentation will document some results of an ongoing research focusing on the role of infrastructure in contemporary design practice. The methodology is based on critical design theory and combines theoretical aspects with a case-study approach, at the junction of infrastructure, urban design and architecture. It is already well documented that 19th and 20th century infrastructure have deeply affected their programs in order to face new challenges over the last 30 decades. Railway stations are leading examples in this fields: they have gradually implemented their design, that already integrated commercial spaces and facilities, until involving in public space transformation. Instead, …
CULTURA DELLA RAGIONEVOLEZZA DEI TEMPI PROCESSUALI, GARANZIE CEDU E RIMEDI INTERNI:IL CASO ITALIANO TRA ESPERIENZE E PROSPETTIVE DI RIFORMA
Mai come negli ultimi decenni il volto della Giustizia è apparso così contrassegnato da rugosità e increspature che ne hanno evidenziato il suo lento stato di senescenza e deterioramento. Agli occhi della collettività ha, ormai, assunto l’aspetto di intollerabile luogo d’inefficienza e sono tutti in grado di riconoscerne il suo male maggiore, radicato nell’estenuante lentezza dei suoi riti. Invero, il tempo è un elemento imprescindibile della qualità del processo sotto una duplice prospettiva: “occorre tempo per decidere, ma occorre altresì decidere in tempo”, e il tempo fissato per la decisione giudiziaria è un tempo dalla necessaria ragionevole durata. Il perseguimento di questa durata ra…
Naiseuden etsintää Tori Amosin lauluissa Professional widow, Caught a lite sneexe ja Talula
2000
L'architettura del viaggio: le stazioni per l'alta velocità di Torino, Firenze e Roma
2012
The recent launching in Italy of a number of large scale urban operations centered around High Speed Railway (HSR) stations has added a wealth of examples and themes to the overall European picture; these go to make up a global point of reference for other countries that are, in this period, undertaking the construction of their own HSR networks. Above and beyond the territorial questions often linked to the issue, further research investigating the architectural aspect of these operations would be highly relevant, but is rather lacking. Instead, we shall be focusing on current HSR stations in Italy, such as Turin Porta Susa, Florence Belfiore and Rome Tiburtina, and comparing them briefly,…
“Sei temi, quattro casi: il contributo dell’analisi empirica”
2004
Blown-up toric surfaces with non-polyhedral effective cone
2020
We construct examples of projective toric surfaces whose blow-up at a general point has a non-polyhedral pseudo-effective cone, both in characteristic $0$ and in every prime characteristic $p$. As a consequence, we prove that the pseudo-effective cone of the Grothendieck-Knudsen moduli space $\overline M_{0,n}$ of stable rational curves is not polyhedral for $n\geq 10$ in characteristic $0$ and in characteristic $p$, for all primes $p$. Many of these toric surfaces are related to a very interesting class of arithmetic threefolds that we call arithmetic elliptic pairs of infinite order. Their analysis in characteristic $p$ relies on tools of arithmetic geometry and Galois representations in …
Determination of the threshold of the break-up of invariant tori in a class of three frequency Hamiltonian systems
2001
We consider a class of Hamiltonians with three degrees of freedom that can be mapped into quasi-periodically driven pendulums. The purpose of this paper is to determine the threshold of the break-up of invariant tori with a specific frequency vector. We apply two techniques: the frequency map analysis and renormalization-group methods. The renormalization transformation acting on a Hamiltonian is a canonical change of coordinates which is a combination of a partial elimination of the irrelevant modes of the Hamiltonian and a rescaling of phase space around the considered torus. We give numerical evidence that the critical coupling at which the renormalization transformation starts to diverg…
Progetto Periferie, Torino. Corviale, Roma. Le Vele, Napoli
2003
Schede per l’inchiesta Periferie
Nuove stazioni, periferie e città
2016
L’infrastruttura contemporanea amplia e fa slittare il proprio campo semantico, trasformandosi definitivamente da artefatto tecnico di carattere titanico ed epico ad elemento riparatore dei tessuti urbani, flessibile, trasformabile. In questo quadro in mutazione, numerose esperienze negli ultimi trent’anni hanno affermato in Europa occidentale il ruolo dei grandi progetti ferroviari come vettori di trasformazione urbana. A quindici anni dall’avvio della prima stagione di concorsi internazionali banditi per le nuove stazioni dell’Alta Velocità in Italia, è possibile un bilancio volto non solo al semplice confronto dei risultati direttamente pertinenti la realizzazione e l’esercizio dell’oper…