Search results for "Fountain"
showing 10 items of 12 documents
Seedling growth of a native ( Ampelodesmos mauritanicus ) and an exotic ( Pennisetum setaceum ) grass
2016
Scarce information is available on the biological reasons why a small subset of introduced species can effectively establish within novel ecosystems. A comparison of early growth traits can help to explain the better performance of alien invasive species versus native co-occurring species. In one year-long experiment, we compared the early life stages of Ampelodesmos mauritanicus (Poir.) Dur. & Schinz (Amp), a native perennial Mediterranean grass, and Pennisetum setaceum (Forssk.) Chiov (Penn), an emerging invader grass in sub-arid and Mediterranean-climate areas. The Penn seedlings grew significantly faster and were approximately 2.5 times taller than the Amp seedlings, reaching a fina…
Fontane e acquedotti nella Sicilia tra XV e XVII secolo
2014
Between XV and XVII century, the Sicilian cities deal with impressive works of modernization, trough the construction of new conducts and aqueducts. The most eloquent signsof this activity are the precious fountains, built in Messina and Palermo, with a clear role of civic propaganda. In addition to these works, the documents tell, with reference to several cities of the island, of a lasting and dramatic series of quarrels that reveal the political and economic value of the water’s domain. Le città siciliane tra XV e XVII affrontarono una imponente opera di modernizzazione attraverso la costruzione di nuove condutture idriche e di acquedotti. La prova più evidente di questa attività so le p…
Ipotesi di ricostruzione virtuale della piazza maggiore a Noto Antica
2019
Today ancient Noto is a medieval archaeological site, yet to be discovered. After the 1693 earthquake, the ancient city of Noto, in the middle of the Baroque period, was rebuilt in another place and the ancient city was abandoned. The first excavation campaign in ancient Noto by Paolo Orsi dates back to the period between 1894 and 1896. In the following years there will be other excavation campaigns, in which other architectural and sculptural relics will be found. They are today part of the collection of the Civic Museum. The contribution focuses on the study of the piazza Maggiore (Main Square) site, the center of the ancient city and on the surrounding buildings. After analyzing the limi…
Vincenzo Vincenzi, “Geometer and Engineer to Cardinal Borja”
2017
This paper analyses the figure of Vincenzo Vincenzi on the basis of documents that place him in Valencia in 1635 as engineer and geometer to Cardinal Gaspar de Borja y Velasco. Vincenzi, who was born in the Urbino region, worked as a hydraulic engineer at the Villa d’Este in Tivoli. In Rome he made his name as the inventor of the wind gun and the mobile fountain, inventions that were disseminated through the works of Benedetto Castelli and, above all, those of Giovanni Faber who also served as an intermediary, recommending Vincenzi’s services to cardinals such as Emmanuele Pio di Savoia and taking it upon himself to find buyers for the wind gun. Vincenzi worked for the Bentivoglios on the b…
The Nymphaeum of the Tritons at Hierapolis of Phrygia (Turkey) from excavations to 3D-virtual reconstruction: an example of integrated methods in the…
2011
The Nymphaeum of the Tritons at Hierapolis of Phrygia is a monumental fountain of the Roman period with an imposing marble façade. Within the activities of the Italian Archaeological Mission the Nymphaeum is currently being studied by a team from the University of Messina with the goal of understanding its original layout and its history. The starting point of the study is the wealth of data provided by stratigraphic excavation of the building, particularly by the extensive archaeological deposits formed by the blocks of the façade collapsed into the pool of the fountain following an earthquake in the 7th century AD. The need to process a large amount of data required the creation of a comp…
Saint Adalbert – the Apostle of Silesia
2017
Bishop Adalbert is known under many names but only one source refers to him as the ‘Apostle of Silesia’: a mediaeval chronicle of the Opole Dominicans. Since the II World War the chronicle is lost. The contents of the chronicle were recently reconstructed thanks to an archival research in the manuscript department of the Wrocław University Library, the National Archive in Prague and the Dominican General Archive on Aventine hill in Rome. According to the source, saint Adalbert had visited Opole about 984. In Górka (the Hill) he was supposed to christianize local society and baptize them. When he was run out of baptizing water, the fountain came to the top and lasted till the beginning of th…
BIOLOGICAL MACRO AND MICRO SYSTEMS CO-EXISTING IN THE “FOUNTAIN OF THE TWO DRAGONS”, PALERMO
2017
Stone works of art located outdoors are exposed to natural deterioration, due to several physical, chemical and biological factors. Biological macro- and micro-systems (e.g. weeds, insects, algae, mosses, fungi and bacteria) may induce the biodeterioration of stone materials. In February 2014, the state of conservation of the Fountain of the two Dragons in Palermo was examined, during which time biological colonization in some areas of the fountain and statues, was also detected. The monument represents an excellent substrate for the development and growth of microrganisms and organisms that need a continuous supply of water. Direct solar irradiance promotes the development of photoautotrop…
La fontana Pretoria a Palermo
2011
Nella narrazione vasariana la vicenda della fontana Pretoria di Palermo compare nella sua fase di esordio, quando niente faceva supporre che la “stupendissima” opera di Francesco Camilliani, destinata ad ornare il giardino fiorentino di don Luigi di Toledo, fratello della duchessa Eleonora, potesse divenire uno dei più riusciti manifesti della magnificenza civica nella capitale dell’isola. Negli anni seguenti i problemi finanziari di don Luigi, che lo indussero a vendere la fontana fiorentina, finirono con l’intercettare i propositi del Senato palermitano, determinato a dotare la città di una grande fontana monumentale, creando appositamente un piazza di adeguate dimensioni antistante il pa…
Rateless Codes Performance Tests On Terrestrial FSO Time-Correlated Channel Model
2012
Free Space Optics (FSO) links are affected by several impairments: optical turbulence, scattering, absorption, and pointing. In particular, atmospheric optical turbulence generates optical power fluctuations at the receiver that can degrade communications with fading events, especially, in high data rate links. A way to mitigate FSO link outages can be to add a coding to communications. Nevertheless, in order to study innovative solutions (software or hardware) and to improve the FSO link performance it needs accurate testing models. In this paper we describe an accurate time-correlated channel model able to predict random temporal fluctuations of optical signal irradiance caused by optical…