Search results for "Hub"
showing 10 items of 207 documents
A Hybrid Frequency-Space Approach for Shape Measurement by Shadow Moirè Technique with Carrier Fringe Pattern
2006
In this paper, a novel methodology to process fringe pattern is presented. The core of the signal processing technique is the use of the direction information, a modulo 2π quantity that locally informs about the direction along which fringes grow with maximum rate. By using this information, it was possible to perform adaptive, direction - and orientation-based operations on fringe images in order to remove unwanted effects, to enhance the contrast and to extract the phase information encoded. The method has been applied on shadow moiré interferograms with carrier fringes in order to measure the surface of small objects. The developed algorithm allows to process fringes whose phase informat…
A methodology for assessing the impact of salinity gradient power generation in urban contexts
2018
Abstract The paper proposes a methodology to assess the potential impact of salinity gradient power technology in urban contexts. The idea to employ such energy source in urban contexts derives from the observation that, among the energy districts outputs, low-salinity treated wastewater can be used to produce electricity if a suitable source of high salinity feed (seawater of a salt-works) is also available. The methodology uses the HOMER software for assessing the district’s electric energy production, consumption and exchange with the main grid. Then, starting from the total gross surface and the number of inhabitants of the district, some possible realistic scenarios characterized by di…
ON THE POTENTIAL IMPACT OF GREEN HYDROGEN FACILITIES ON THE PLANNING OF RES PLANTS IN SICILY
2021
A recent report on climate change and global warming, soil and oceans and the cryosphere [1] highlighted the disastrous effects that would be produced if climate change were not stopped.
Multi-objective Optimization of Energy Hubs at the Crossroad of Three Energy Distribution Networks
2016
This paper provides a multi-objective optimization framework aimed at the management of a multi-carrier energy system involving both electricity and hydrogen. Using the concept of the multi-carrier hub, the proposed system has been modelled in order to define completely every energy flow inside the plant. After that, a heuristic multi-objective optimization algorithm, the Non-dominated Sorting Genetic Algorithm II, has been implemented for the energy management of the plant, taking into account simultaneously three different objective functions related to economic and technical goals. This optimization process provides the set point defining the working configuration of the plant for a dayl…
2015-2020. Sicily and Italy as Electricity Hub in the Mediterranean Area for the Development of the European Power Grids Interconnections
2015
Falling demand and explosion of Renewable Energy Sources (RES) are redesigning the criteria for planning the power grids interconnections by ENTSO-E. In particular, the interconnections between networks of different countries have been acquiring importance more and more, in view of an unique European market for electricity and an increase of RES. Italy and Sicily, placed in the centre of the Mediterranean Sea, play a fundamental role as a bridge between Central Europe, North Africa area and Mediterranean islands (electricity hub). This paper aims to show how power system exchanges tend to follow the direction from South to North, and how the impact of North-African power – mainly generated …
BioAnalysis: A Framework for Structural and Functional Robustness Analysis of Metabolic Networks
2010
The main objective of this work is to analyze metabolic networks evolution in terms of their robustness and fault tolerance capabilities. In metabolic networks, errors can be seen as random removal of network nodes, while attacks are high-connectivity-degree node deletion aimed at compromising network activity. This paper proposes a software framework, namely BioAnalysis, used to test the robustness and the fault tolerance capabilities of real metabolic networks, when mutations and node deletions affect the network structure. The performed simulations are related to the central metabolic network of the well-known E. coli single-celled bacterium and involve either hub nodes or non-hub nodes,…
"Catan" spēles implementācija
2022
Kvalifikācijas darbs apraksta galda spēles “Catan” implementāciju. Spēles funkcionalitāte ietver lokālo spēli četriem spēlētājiem. kura laikā spēlētāji var tirgoties savā starpā vai ar banku, nodarboties ar ēku celtniecību un/vai uzlabošanu, kā arī spēlei ir sava karšu sistēma. Spēle ir gājienu balstīta – spēlētāji mainās ar gājieniem. Spēle veidota C# valodā ar Unity spēļu dzinēja palīdzību.
Revisiting cosmological bounds on sterile neutrinos
2014
We employ state-of-the art cosmological observables including supernova surveys and BAO information to provide constraints on the mass and mixing angle of a non-resonantly produced sterile neutrino species, showing that cosmology can effectively rule out sterile neutrinos which decay between BBN and the present day. The decoupling of an additional heavy neutrino species can modify the time dependence of the Universe's expansion between BBN and recombination and, in extreme cases, lead to an additional matter-dominated period; while this could naively lead to a younger Universe with a larger Hubble parameter, it could later be compensated by the extra radiation expected in the form of neutri…
Integrating Experiences: Palermo Mediterranean Gateway City. Identity and Innovation
2019
Metropolitan transformations of the Palermo as a Mediterranean city, guided by envisioning it as a ‘fluid’ gateway city, have been seen as an example for the planning of other such cities in Italy and Europe. The 2025 strategic vision for Palermo was inspired by three key components: (i) the relevance of Palermo as ‘hub territory’ in European level concerns in territorial and infrastructure development policies; (ii) the urban and regional experience with the concept ‘fluid city’ (envisioning the city as a portal and place of interaction and exchanges, not just in terms of goods and people); and (iii) new metropolitan vision produced by new regional and national legislation on metropolitan …
El Teatro Principal de Valencia durante la temporada teatral 1875-1876
2021
El presente artículo revisa toda la actuación operística que hubo en Valencia durante la temporada de 1875 a 1876, la primera que coincide con la restauración de la monarquía de Alfonso XII. A través de la actividad que se produjo en el Teatro Principal de Valencia, examinamos toda la labor operística que hubo en esta ciudad, ya que fue el único lugar donde se representó ópera en Valencia. Una temporada marcada, sin duda alguna, por el estreno de la obra de Verdi, Aida. Un debut que fue posible gracias a la participación del tenor asturiano Lorenzo Abruñedo. Señalamos, asimismo, la importante presencia de la soprano Anna Romilda Pantaleoni, una de las cantantes más sobresalientes en aquel m…