Search results for "PIP"

Leaf vs. epiphyte nitrogen uptake in a nutrient enriched Mediterranean seagrass (Posidonia oceanica) meadow

2012

Abstract In situ nitrogen uptake by leaves and epiphytes was studied in a Mediterranean seagrass (Posidonia oceanica) meadow impacted from a fish farm and a pristine meadow, using 15NH4 and 15NO3 as tracers. In the impacted meadow both leaves and epiphytes yielded higher N concentrations and showed higher specific N uptake, suggesting a linkage between N uptake and its accumulation. Epiphytes took up N faster than leaves in relation to their corresponding biomass, but when assessed per unit area, N uptake was higher in leaves. Leaf N uptake was negatively correlated with epiphyte N uptake. With increasing epiphyte load on leaves, N leaf uptake decreased while N epiphyte uptake increased, in…

Analysis and assessment of trace element contamination in offshore sediments of the Augusta Bay (SE Sicily): A multivariate statistical approach base…

2014

Abstract An application of multivariate statistical methods is provided to identify anthropogenic contaminants and lithogenic elements in offshore sediments collected near the heavily industrialized Augusta Bay, Sicily. An exploratory statistical technique, based on canonical correlation analysis (CCA) and mixture density estimation approach, is used for distinguishing between natural and anthropogenic contributions of trace elements in the investigated sediments. Following the intensive industrialization of Augusta area, marine sediments reveal the severe impact of local anthropogenic activities for many elements (e.g. As, Cd, Hg, Pb, and Sb), which are considered very dangerous for the en…

Influence of hydrothermal vents on phytobenthic communities in the Aeolian Islands (Tyrrhenian Sea): preliminary results

2010

I resti scheletrici della grotta di S. Teodoro presso il Museo Gemmellaro di Palermo: il nuovo restauro conservativo di ST2

2013

The work describes the restoration of the cranium ST2 of the Epipalaeolithic site of S. Teodoro, Sicily. This restoration has been conducted in accordance to modern criteria of conservation limiting the integrative and reconstructive interpretation to the minimum. After the restauration ST2 has been morphologically described and measured. The fortuitous recovery of a left incus bone allowed its morphological and metrical description.

Wave and Wind Energy Systems Integration in Vietnam: Analysis of Energy Potential and Economic Feasibility

2020

Vietnam energy demand is currently growing at a very high annual rate, with the government being very interested in investments in renewable energies. Since the region with the highest solar and wind potential is far away from the big load centers, an investigation of offshore energy resources is here proposed. In this study, a review of previous energy potential assessments is provided. Moreover, the minimum feed-in-tariff to make the investments profitable is evaluated, showing that the current tariff for offshore wind plants is largely unattractive.

The Trans-Adriatic Pipeline and the Nimby Syndrome

2019

The note aims to describe the management of the Nimby resistance concerning the Trans-Adriatic Pipeline project through administrative compensatory measures. The Trans-Adriatic Pipeline case offers a privileged point of view to examine efficiency of administrative compensations in solving local conflicts. After the examination of interpretation theories on the Nimby syndrome, the note focuses on the administrative compensation-based strategy usually deployed to solve territorial conflicts. The compensation pattern used in relation to the Trans-Adriatic Pipeline is also discussed. The analysis will allow general reflections on the use of administrative compensations to overcome Nimby.

Le risorse idriche nel territorio di Alesa

2022

The contribution examines the complex archaeological data produced by the survey carried out in the region of Alesa, in an attempt to recognise the essential elements of the system of collection and distribution of water in rural settlements. The archaeological data are integrated with what can be obtained from the well-known ‘Table of Alesa’, and with other toponymical, environmental, morphological, and geological information. The results are compared with known data in areas with similar characteristics along the northern coast of Sicily.

Cristina Costanzo, a cura di, "Apparati. Schede delle opere", in S. Troisi, a cura di, "Trame del '900. Opere della Collezione Galvagno", Silvana Edi…

2014

Il catalogo della mostra "Trame del '900. Opere della Collezione Galvagno" - a cura di S. Troisi, tenutasi presso le Fabbriche Chiaramontane di Agrigento e organizzata dall'Associazione Amici della Pittura Siciliana dell'Ottocento - prevede la sezione intitolata "Apparati" con n. 88 "Schede delle opere" a cura di Cristina Costanzo. Le schede riguardano le opere degli artisti Carla Accardi, Antonio Sanfilippo, Pietro De Francisco, Aleardo Terzi, Giacomo Balla, Pippo Rizzo, Giovanni Varvaro, Renato Guttuso, Bruno Caruso, Giuseppe Migneco, Ottone Rosai, Piero Dorazio, Emilio Vedova, Giuseppe Capogrossi, Arnaldo Pomodoro, Pietro Consagra, Giuseppe Santomaso, Fausto Pirandello etc

Present-day use of an empirical wave prediction method

2016

Knowledge of the offshore wave climate is key to the design of coastal engineering structures and to the study of shoreline evolution. To date, the available wave data have been limited both in time and space; even though there are several options for obtaining wave data calculated using complex numerical models at basin scale, design issues can in some cases be solved by means of simpler models. This paper shows whether, under certain conditions and in an enclosed basin, an old empirical model can provide results that are good enough to determine the design condition necessary for engineering purposes. The empirical model chosen to answer this question is called Sverdrup–Munk–Bretschneide…

Smart grid for offshore wind farms: Towards an information model based on the IEC 61400-25 standard

2012

Nowadays, wind energy is one of the most recognized renewable energy sources. Onshore wind farms have been built in many countries, such as Denmark, Norway, UK, Italy, Brazil and the US. To utilize the more stable wind resources, wind farms have moved off the shore, first to shallow waters near shore and now extending to deeper waters and far off the shore. Deep-water offshore solutions will give access to large areas with high wind, and less sensitivity to noise, visual impacts and size. However, the cost of developing and operating an offshore wind farm is many times larger than onshore due to large water depths and harsh offshore environments. Hence, the needs for fast and automatic data…