Search results for "Architecture"
showing 10 items of 3706 documents
Disvelare e conservare il palinsesto architettonico: il restauro del fronte chiaramontano nella corte interna del Collegio dei Santi Agostino e Tomma…
2020
La configurazione architettonica del Collegio dei SS. Agostino e Tommaso ad Agrigento è il risultato d’un plurisecolare processo di crescita per aggregazioni e revisioni intorno al nucleo fondativo trecentesco. La sua corte interna viene dunque a definirsi attraverso un percorso evolutivo di tipo processuale ed uno dei suoi lati mostra le tracce dell’originario palazzo Chiaramonte. Il contributo intende presentare una sintesi delle riflessioni che hanno condotto alla definizione del progetto di restauro, le matrici culturali che lo sostengono, le fasi dello studio analitico dei materiali e gli aspetti salienti del cantiere d’intervento, con particolare attenzione alla conservazione del fron…
Alchimia e Memphis. I colori progettati del design
2012
Il design italiano, tra anni Settanta e Ottanta, viene marchiato a fuoco dalla definizione “Made in Italy” che ne riporta provenienza geografica, qualità progettuale e innovativa ed eccellenza assoluta. In tale scenario, all’interno di tante realtà legate al design e diffuse capillarmente sul territorio, si continua a sperimentare in modo ininterrotto, e in ogni settore legato alla progettazione, alla produzione, alla ricerca tecnologica e dei nuovi materiali. Scenario nel quale si muovono anche le realtà di Alchimia e Memphis che ripensano il progetto, attribuiscono nuovo valore a elementi come il colore e la decorazione, costruiscono nuovi lessici. In the 1970s and 1980s, the identity of …
Numerical evaluation of multiple polylogarithms
2004
Multiple polylogarithms appear in analytic calculations of higher order corrections in quantum field theory. In this article we study the numerical evaluation of multiple polylogarithms. We provide algorithms, which allow the evaluation for arbitrary complex arguments and without any restriction on the weight. We have implemented these algorithms with arbitrary precision arithmetic in C++ within the GiNaC framework.
One-loop integrals with XLOOPS-GiNaC
2001
We present a new algorithm for the reduction of one-loop tensor Feynman integrals within the framework of the XLOOPS project, covering both mathematical and programming aspects. The new algorithm supplies a clean way to reduce the one-loop one-, two- and three-point Feynman integrals with arbitrary tensor rank and powers of the propagators to a basis of simple integrals. We also present a new method of coding XLOOPS in C++ using the GiNaC library.
Symmetries in Spaces, Symmetries in Listening
2018
Based on the importance of the concept of symmetry in French sociological aesthetics circa 1900, this chapter analyzes the convergence of theaters, musical form, and musical understanding. The analysis focuses on architectural shape, audience response, and the musical repertoire in the new theaters built in Barcelona (1847), Paris (1862), and Rome (1880). While these theaters were fashioned after the baroque form of the “teatro all’italiana” that prevailed in Italy, France, and Spain during the late nineteenth century, they provided huge spaces accommodating a socially mixed audience within an architecturally symmetrical form. Music critics often aligned acoustic sound waves with actual vis…
Finite-Size and Illumination Conditions Effects in All-Dielectric Metasurfaces
2022
Dielectric metasurfaces have emerged as a promising alternative to their plasmonic counterparts due to lower ohmic losses, which hinder sensing applications and nonlinear frequency conversion, and their larger flexibility to shape the emission pattern in the visible regime. To date, the computational cost of full-wave numerical simulations has forced the exploitation of the Floquet theorem, which implies infinitely periodic structures, in designing such devices. In this work, we show the potential pitfalls of this approach when considering finite-size metasurfaces and beam-like illumination conditions, in contrast to the typical infinite plane-wave illumination compatible with the Floquet t…
Altari
2019
the contribution identifies and analyzes the success and operational fallout in Sicilian architecture of the seventeenth and eighteenth centuries, of models for altars disseminated through the press. The theme of the altars indeed presents punctual connections with the world of model prints. As in other cases, these engravings were not only aimed at architects but were also intended for a wider world of operators, especially wood sculptors. Between the end of the seventeenth century and the first half of the eighteenth century, the project area in question knows mutations starting from new texts.
Nuove ricerche tuniso-italiane al teatro romano di Althiburos
2017
Il progetto di rilievo, scavo, studio e valorizzazione del teatro romano di Althiburos (El M’deïna, Tunisia) vede coinvolti l’Institut National du Patrimoine, l’Università di Macerata ed il Politecnico di Bari. Nelle tre campagne sinora svolte è stato iniziato il programma di rilievo del monumento e catalogo degli elementi architettonici e sono stati iniziati alcuni saggi stratigrafici che hanno permesso di indagare le fasi più tarde della vita dell’edificio, da quando cioè, in età bizantina, il teatro venne trasformato in fortezza sino all’età moderna. Il progetto della missione congiunta tuniso-italiana prevede di riprendere quest’anno lo studio del monumento e del materiale già scavato e…
Techniques de construction traditionnelles et techniques romaines dans le théâtre d’Althiburos et les monuments de spectacle de l’Afrique Proconsulai…
2023
The contribution aims to study the relationship between the traditional construction techniques of the territories of Proconsular Africa and those imported by the Romans and used in the construction of entertainment buildings, in particular theaters and amphitheatres, also taking into account the importation of typological models, starting from the “case study” of the theater of Althiburos. During the 1st and 2nd centuries AD there is a gradual introduction of Roman construction techniques, such as the opus caemaenticium, especially in the construction of substructures and vaults, sometimes with the importation of urban models, of techniques but also of Italic workers (just think of the opu…
Life Cycle Assessment of aluminum alloys chips recycling through single and multi-step Friction Stir Consolidation processes
2023
Manufacturing scientists have to find new processes enabling energy and resource efficient circular economy strategies. Solid state recycling processes have proved to be environmentally friendly alternatives to recycle aluminum alloys process scraps like chips. In this paper the environmental characterization of a solid state recycling process named Friction Stir Consolidation (FSC) is presented. A full Life Cycle Assessment (LCA) comparative analysis is developed: the environmental performance of new and different variants of FSC processes and remelting based routes are quantified and compared to one another. Also, different scenarios are analysed to provide guidelines for the correct impl…