Search results for "cART"

Strategies investigation in using artificial neural network for landslide susceptibility mapping: application to a Sicilian catchment

2013

Susceptibility assessment of areas prone to landsliding remains one of the most useful approaches in landslide hazard analysis. The key point of such analysis is the correlation between the physical phenomenon and its triggering factors based on past observations. Many methods have been developed in the scientific literature to capture and model this correlation, usually within a geographic information system (GIS) framework. Among these, the use of neural networks, in particular the multi-layer perceptron (MLP) networks, has provided successful results. A successful application of the MLP method to a basin area requires the definition of different model strategies, such as the sample selec…

On the relationship between some production parameters and a vegetation index in viticulture

2013

The use and timing of many agronomical practices such as the scheduling of irrigation and harvesting are dependent on accurate vineyard sampling of qualitative and productive parameters. Crop forecasting also depends on the representativeness of vineyard samples during the whole phenological period. This manuscript summarizes the last two years of precision viticulture in Sicily (Italy); agronomic campaigns were carried out in 2012 and 2013 within the "Tenute Rapitalà" and "Donnafugata" farms. Normalized Difference Vegetation Index derived from satellite images (RapidEye) acquired at berry set, pre-veraison and ripening phenological stages (occurred at June, July and August respectively) ha…

Assessing actual evapotranspiration via surface energy balance aiming to optimize water and energy consumption in large scale pressurized irrigation …

2017

Satellite imagery provides a dependable basis for computational models that aimed to determine actual evapotranspiration (ET) by surface energy balance. Satellite-based models enables quantifying ET over large areas for a wide range of applications, such as monitoring water distribution, managing irrigation and assessing irrigation systems’ performance. With the aim to evaluate the energy and water consumption of a large scale on-turn pressurized irrigation system in the district of Aguas Nuevas, Albacete, Spain, the satellite-based image-processing model SEBAL was used for calculating actual ET. The model has been applied to quantify instantaneous, daily, and seasonal actual ET over high- …

Assessing the performance of thermal inertia and Hydrus models to estimate surface soil water content

2017

The knowledge of soil water content (SWC) dynamics in the upper soil layer is important for several hydrological processes. Due to the difficulty of assessing the spatial and temporal SWC dynamics in the field, some model-based approaches have been proposed during the last decade. The main objective of this work was to assess the performance of two approaches to estimate SWC in the upper soil layer under field conditions: the physically-based thermal inertia and the Hydrus model. Their validity was firstly assessed under controlled laboratory conditions. Thermal inertia was firstly validated in laboratory conditions using the transient line heat source (TLHS) method. Then, it was applied in…

I Puffi nella foresta segreta

2017

Viaggio nella foresta segreta è il terzo film dedicato da Sony Picture Animation al rilancio della celebre serie di personaggi animati disegnati da Peyo. Già Umberto Eco in un simpatico articolo uscito su Alfabeta ne descriveva i contorni, sottolineando la complessità semiotica della neolingua puffa, gli aspetti egualitari del loro vivere insieme (tutti i puffi sono uguali e maschi), la forma di governo gerontocratica (tutto il potere va all’anziano Grande Puffo), l’enigma della loro riproduzione (come si diventa puffo?), il carattere di utopia politica misticheggiante del loro modello di società (una comune sessantottina) che assume le sembianze di un’età dell’oro tanto bucolica quanto fia…

PROCESSI E LIMITI DELLA DERIVAZIONE CARTOGRAFICA SEMIAUTOMATICA DI UNA CARTOGRAFIA IGM SERIE 25DB DA UN DATABASE RELATIVO ALLA CTR 10K SICILIA

2011

Narratives Around Iberian Culture at Valencia Museums and Archaeological Sites: From Official Discourses to Social Perceptions

2016

Los museos y los yacimientos arqueológicos constituyen los espacios más autorizados para hablar sobre el pasado y el patrimonio desde un punto de vista científico. Como tales, sus discursos son asumidos por los visitantes como veraces y rara vez son puestos en duda o contestados. Sin embargo, desde la arqueología debemos plantear una mirada crítica sobre las narrativas que se generan en estos espacios patrimoniales y el impacto que tienen sobre los visitantes, pues con frecuencia traducen y sancionan realidades políticas, sociales e identitarias que tienen más que ver con el presente que con el pasado. En este trabajo nos proponemos analizar los discursos oficiales sobre la cultura ibérica …

Iberian Wolf Howls: Acoustic Structure, Individual Variation, and a Comparison with North American Populations

2007

We present a detailed description of the acoustic structure of howls emitted by Iberian wolves and a comparison with published descriptions of North American wolf howls. We recorded and analyzed 176 howls emitted by 11 wolves held in captivity in social groups of 1–5 individuals. Our sample included solo howls as well as howls included in choruses. Iberian wolf howls are long (1.1- to 12.8-s) harmonic sounds, with a mean fundamental frequency between 270 and 720 Hz. Our results revealed striking similarities between Iberian and North American wolf howls in all variables analyzed except for the number of discontinuities in the frequency of the howl, which was lower for Iberian wolves. Using …

Havel, Vargas Llosa y los fundamentalismos

2006

Software for automated application of a reference-based method fora posterioridetermination of the effective radiographic imaging geometry

2005

Objectives: Presentation and validation of software developed for automated and accurate application of a reference-based algorithm (reference sphere method: RSM) inferring the effective imaging geometry from quantitative radiographic image analysis. Methods: The software uses modern pattern recognition and computer vision algorithms adapted for the particular application of automated detection of the reference sphere shadows (ellipses) with subpixel accuracy. It applies the RSM algorithm to the shadows detected, thereby providing threedimensional Cartesian coordinates of the spheres. If the three sphere centres do not lie on one line, they uniquely determine the imaging geometry. Accuracy …