Search results for "stuc"
showing 10 items of 91 documents
The “recipe” of the stucco sculptures of Giacomo Serpotta
2002
Abstract Mineralogical and chemical data (organic) of some representative samples collected from stucco-works by the famous Sicilian sculptor Giacomo Serpotta (Palermo, 1656–1732) have been combined with the aim of ascertaining their manufacture technology in the light of local historical sources. A complete correspondence between samples belonging to the “Victory” statue (1723) and the S.S. Rosario oratory (1685–1689) as regards stratigraphy, mineralogy of sand aggregate, composition of binder matrix, and nature and concentrations of organic additives is pointed out. Considering that the studied works of art cover more than 35 years of the artist’s activity, it is consequential to think of…
Architecture of the settlement and infrastructural system. The sicilian landscape between Palermo and Agrigento
2013
La piena consapevolezza della modernità impone oggi di interrogarsi sulla nuova natura morfologica e dimensionale dei luoghi, per comprenderne il senso delle relazioni spaziali e tentarne un’elaborazione estetica. Il tema è stato sviluppato nell’ambito del paesaggio siciliano, in particolare, nel sistema definito da un attraversamento interno della Sicilia: la strada che, congiungendo Palermo con Agrigento, collega il mar Tirreno al Mare Africano, definisce una fascia territoriale ben identificabile in cui si manifesta una molteplicità di condizioni. Si elabora, in tal modo, un quadro interpretativo e progettuale all’interno di un vasto territorio contrassegnato dalla presenza di piccoli ce…
Distribution patterns, floristic structure and habitat requirements of the alpine river plant community Stuckenietum amblyphyllae ass. nova (Potamete…
2012
This paper discusses the floristic structure, distribution and habitat requirements of a new aquatic syntaxon, <em>Stuckenietum a</em><em>m</em><em>b</em><em>l</em><em>y</em><em>p</em><em>h</em><em>ylla</em><em>e </em>ass. nova. Patches of the <em>Stuckenietum amblyphyllae </em>association occur in the Pamir Alai Mountains in Middle Asia (Tajikistan). The biotope of this community represent high mountain rivers and ponds at the bottom of glacial river valleys situ- ated at elevations between 1900 and 3800 m. Patches of the <em>Stuckenietum amblyphyllae </em>ass…
Biochemical aspects of stuck and sluggish fermentation in grape must
1998
Recently a number of studies have focused on the factors responsible for the occurrence of stuck and sluggish fermentations. Results from these studies indicate that together with nutritional deficiencies and inhibitory substances, technological practices could lead to such situations. This review explains, from a biochemical point of view, the influence of nutritional deficiencies, inhibitory substances and technological practices on yeast cell development and physiology and the fermentation process.
Fault detection for continuous-time switched systems under asynchronous switching
2013
In this chapter, the problem of FD for continuous-time switched systems under asynchronous switching is investigated. The designed FD filter is assumed to be asynchronous with the original systems. Attention is focused on designing a FD filter such that the estimation error between the residual and the fault is minimized in the sense of H ∞ norm. By employing piecewise Lyapunov function and ADT techniques, a sufficient condition for the existence of such a filter is exploited in terms of certain LMIs. Finally, an example is provided to illustrate the effectiveness of the proposed approach.
Corporazioni, maestranze e mestieri d’arte a Palermo al tempo di Giacomo Amato (1643-1732)
2017
Ci si sofferma sull'attività poliedrica delle varie corporazioni e maestranze palermitane il cui operato, tra la seconda metà del XVII e i primi decenni del secolo successivo, è affiancato dall'estro creativo di Giacomo Amato e da altre emergenti personalità che incisero notevolmente nel rinnovamento artistico della città di Palermo.
La ri-composizione del territorio / The ricomposition of territory
2017
Il saggio, inserito nel volume di sintesi della ricerca PRIN 2009 (“Dalla campagna urbanizzata alla : le norme compositive dell’architettura nel territorio dei centri minori”) presenta alcune aspetti fondamentali del lavoro svolto dall’unità di ricerca locale dell’Università degli Studi di Palermo (responsabile prof.. A. Margagliotta) che ha studiato l’attraverso interno Palermo-Agrigento e il ruolo dell’infrastruttura stradale in rapporto alla questione dei centri minori e della campagna. In particolare il saggio mette approfondisce il tema dei luoghi dell’attraversamento e il ruolo delle infrastrutture; la questione della la campagna e della sua capacità rigenerante nei confronti della re…
Diagnostics applied to the finish decorative plaster. The case study of Santa Margherita di Belice
2013
Il terzo poster mostra il risultato delle applicazioni diagnostiche all'interno dell'ex Chiesa Madre di Santa Margherita di Belice (Agrigento). Poster number 3 presents the application of the diagnostic method on the plastered internal surfaces of the former Mother Church in Santa Margherita di Belice (Agrigento).
Xeric grasslands of the inner-alpine dry valleys of Austria - new insights into syntaxonomy, diversity and ecology
2021
We are grateful to the IAVS for financial support for some of the participants. We would like to give special thanks to Dr. Ernst Partl, director of the Naturpark Kaunergrat for authorizing sampling in the protected areas and for helping with the organization of the field workshop.
Fault Tolerant Ancillary Function of Power Converters in Distributed Generation Power System within a Microgrid Structure
2013
Distributed generation (DG) is deeply changing the existing distribution networks which become very sophisticated and complex incorporating both active and passive equipment. The simplification of their management can be obtained assuming a structure with small networks, namely, microgrids, reproducing, in a smaller scale, the structure of large networks including production, transmission, and distribution of the electrical energy. Power converters in distributed generation systems carry on some different ancillary functions as, for example, grid synchronization, islanding detection, fault ride through, and so on. In view of an optimal utilization of the generated electrical power, fault to…