874 research outputs found
Giulio Mancini e la nascita della Connoisseurship
No full textIl ruolo di Giulio Mancini come padre della connoisseurship è stato recentemente messo in discussione sulla base del fatto che Mancini, sebbene frequentasse il mercato artistico romano di primi Seicento, non provò mai a discutere le attribuzioni dei dipinti contemporanei. Generalmente, infatti, la nascita della moderna connoisseurship, con figure quali i fratelli Richardson, è stata collegata al crescere del fenomeno del mercato artistico nel Settecento, e anche i principali precursori del Seicento, come Marco Boschini, agivano pure in veste di mercanti: tutti questi connoissuers si confrontavano col problema delle attribuzioni dei dipinti dei secoli precedenti. Questo paper esamina le radici della connoisseurship nel lavoro topografico di Mancini, autore della prima guida artistica di Roma. Mancini, studiando gli affreschi del primo Rinascimento di Roma (Ripanda, Pinturicchio, Peruzzi) mise in discussione le biografie di Vasari e suggerì nuove attribuzioni per quelle opere dei secoli precedenti con un approccio moderno che chiaramente anticipa il lavoro dei più tardi connoisseurs.The role of Giulio Mancini as the father of connoisseurship has been recently questioned on the ground that Mancini never aimed to discuss the attributions of contemporary works of art. Generally the birth of modern connoisseurship, with figures as the Richardson brothers, has been linked to the growing art market of the Eighteenth century, and the most important Seventeenth century forerunners, as Marco Boschini, acted as dealers as well: all these connoisseurs deal with the attributions of paintings of the previous centuries. This paper explores the roots of connoisseurship in the topography work of Mancini, author of the first modern artistic guide of Rome. Mancini, studying the early Renaissance frescoes in Rome (Jacopo Ripanda, Pastura, Pinturicchio, Baldassarre Peruzzi) discussed Vasari's biographies and suggested new attributions with a modern approach which clearly anticipates the method of later connoisseurs
COMPARISONS OF REMOTELY-SENSED AND MODEL-SIMULATED SOIL-MOISTURE OVER A HETEROGENEOUS WATERSHED
No full text
High strain rate compression behaviour of 3D printed Carbon-PA
No full textAbstract: In the last few years, Fused Filament Fabrication is growing in the industrial field for the manufacture of final products by using new materials with high mechanical performances. Among those, one of the strongest is Carbon-PA. This is a composite material made by Nylon thermoplastic matrix filled with short carbon fibers reinforces. The aim of this work is to investigate its mechanical properties in static and dynamic conditions. Cylindrical specimens were produced by extruding the material in the three main printing directions. Then, uniaxial quasi-static and dynamic compression tests have been performed to evaluate its strain rate sensitivity. Dynamic tests have been carried out through a direct Split Hopkinson Bar setup with a pulse-shaping technique. The results show a compression behaviour dependent on the printing direction and strain rate. The behaviour of Carbon-PA was different between static and dynamic condition, passing from ductile to brittle. Moreover, a tomography analysis was carried out on the samples to evaluate the voids distribution
‘Una colonia tutta francese: l’Accademia di Francia in Palazzo Mancini’
No full textThe article reviews the way the Accademia di Francia in Rome used and transformed the Palazzo Mancini, which was its seat for roughly eighty years, from 1725 to 1804. The ‘Accademia di pittura, scultura, architettura e musica’ had been founded by Jean-Baptiste Colbert on the instructions of Cardinal Giulio Mazzarino in 1666. After various changes in location between the Gianicolo and Sant’Andrea della Valle, the French institution was eventually installed in the Palazzo Mancini in Via del Corso. This was a building of great interest, yet little known, a late work of the architect Carlo Rainaldi, who entrusted its execution to the young Sebastiano Cipriani (1686-1690). The long and distinctive presence of the Accademia di Francia in the Palazzo Mancini played a role of great significance in the building’s history. Charles Poerson and Nicolas Wleughels filled the posts of director and co-director of the academy since the early months of 1725, while the duc d’Antin was the superintendent of buildings of the crown. The superintendent and director were in fact the main protagonists in the administration of the building, and from a study of their respective correspondence the author has elucidated the salient events in the history of the Palazzo Mancini during this period. The analysis is mainly based on Italian and French archival sources and is correlated with largely-unpublished iconographic material. At the centre of Roman and French current affairs for almost two centuries, and one of the buildings most frequented by Roman high society in the eighteenth century, the Palazzo Mancini is now the property of the Banco di Sicilia, which has transformed it into its head office in Rome. Since then it has curiously remained ‘ a’ l’écart’ of the interest of historians
Energy retrofitting effects on the energy flexibility of dwellings
No full textElectrification of the built environment is foreseen as a main driver for energy transition for more effective, electric renewable capacity firming. Direct and on-time use of electricity is the best way to integrate them, but the current energy demand of residential building stock is often mainly fuel-based. Switching from fuel to electric-driven heating systems could play a key role. Yet, it implies modifications in the building stock due to the change in the temperature of the supplied heat by new heat pumps compared to existing boilers and in power demand to the electricity meter. Conventional energy retrofitting scenarios are usually evaluated in terms of cost-effective energy saving, while the effects on the electrification and flexibility are neglected. In this paper, the improvement of the building envelope and the installations of electric-driven space heating and domestic hot water production systems is analyzed for 419 dwellings. The dwellings database was built by means of a survey among the students attending the Faculty of Architecture at Sapienza University of Rome. A set of key performance indicators were selected for energy and environmental performance. The changes in the energy flexibility led to the viable participation of all the dwellings to a demand response programme.Building Physic
Solar energy data analytics: PV deployment and land use
No full textEU targets for sustainable development call for strong changes in the current energy systems as well as committed protection of environmental resources. This target conflicts if a policy is not going to promote the compatible solutions to both the issues. This is the case of the additional renewable energy sources to be exploited for increasing the share in the electricity mix and in the gross final energy consumption. Solar energy is, currently, the cheapest solution in Southern European Countries, like Italy. In this paper, thanks to the availability of three open databases provided by National Institutions, the authors compared the historic trends and policy scenarios for soil consumption, electricity consumption, and renewable electricity production to check correlations. The provincial scale was chosen as resolution of the analysis. The deviations from the policy scenarios was then addressed to identify the demand for policy recommendations and pathways to promote in order to achieve the target for renewable electricity share as well as the reduction in soli consumption trend in 2030. The role of renewables integrated in the existing contexts, such as building integrated photovoltaics, is considered a key driver for solving this issue.Building Physic
Strategie di problem solving e variabilità della pressione arteriosa (PA) e della frequenza cardiaca (FC)
No full textLa letteratura ha evidenziato come i soggetti ipertesi mostrino delle difficoltà nell’esecuzione di compiti cognitivi (1) che si traducono in maggiori tempi di reazione nei compiti di vigilanza e riconoscimento di parole. In un nostro studio preliminare (2) abbiamo effettivamente riscontrato nei pazienti ipertesi, rispetto ai soggetti normotesi, una minore abilità nell’affrontare compiti di Problem Solving (PS). È stato, altresì, osservato come le abilità di PS presentano una relazione inversa con lo sviluppo di problemi di salute, tra cui l’ipertensione (3) e risulta quindi utile, valutare, aldilà delle effettive abilità, se ci siano nello stile di PS delle caratteristiche collegabili ai livelli e alla variabilità della pressione arteriosa (PA)
Abbiamo condotto uno studio, presso il “Centro di Ipertensione” del Policlinico “Umberto I” di Roma, su 162 soggetti (M/F= 78/84; Età= 53,2712,9), sottoposti e non a trattamento farmacologico, che hanno effettuato un Monitoraggio Ambulatoriale della Pressione Arteriosa (MAPA) di 24 ore. I soggetti hanno compilato due questionari che valutano lo stile di PS: il Problem Solving Inventory (PSI) e Problem Solving Style Questionnaire (PSSQ).
Per valutare la relazione tra le scale di Concettualizzazione Astratta – Esperienza Concreta (CA-EC) e Sperimentazione Attiva – Osservazione Riflessiva (SA-OR), e le variazioni della Pressione Arteriosa (PA) e della Frequenza Cardiaca (FC) nelle 24 ore sono state eseguite delle delle MANCOVA e delle ANCOVA che hanno considerato come fattori indipendenti la CA-EC a tre livelli, la SA-OR a tre livelli e l’utilizzo del Farmaco Antipertensivo a due livelli (Si/No), come covariata l’Età e come variabili dipendenti i livelli medi e il coefficiente di variabilità della PA e della FC (considerate separatamente).
La MANCOVA sulla PA evidenzia un effetto principale del SA-OR (p< .05). I risultati delle ANCOVA hanno indicato che a tale risultato contribuiscono prevalentemente la variabilità della PA sistolica (p< .04) e della PA diastolica (p< .002): le persone con alti livelli di sperimentazione attiva presentano una maggiore variabilità pressoria.
La MANCOVA sulla FC evidenzia un effetto principale del SA-OR (p< .002). I risultati delle ANCOVA hanno indicato che a tale risultato contribuisce prevalentemente la FC media (p< .003): le persone con alti livelli di sperimentazione attiva presentano una maggiore frequenza cardiaca
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