Maria Chiesa
Catholic University of the Sacred Heart
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Publication
Featured researches published by Maria Chiesa.
Journal of Environmental Monitoring | 2012
Maria Chiesa; Federica Rigoni; Maria Paderno; Patrizia Borghetti; Giovanna Gagliotti; Maurizio Bertoni; Antonio Angelo Ballarin Denti; Lorenzo Schiavina; A. Goldoni; L. Sangaletti
The present study is focused on the implementation of a novel, low cost, urban grid of nanostructured chemresistor gas sensors for ammonia concentration ([NH(3)]) monitoring, with NH(3) being one of the main precursors of secondary fine particulate. Low-cost chemresistor gas sensors based on carbon nanotubes have been developed, their response to [NH(3)] in the 0.17-5.0 ppm range has been tested, and the devices have been properly calibrated under different relative humidity conditions in the 33-63% range. In order to improve the chemresistor selectivity towards [NH(3)], an Expert System, based on fuzzy logic and genetic algorithms, has been developed to extract the atmospheric [NH(3)] (with a sensitivity of a few ppb) from the output signal of a model chemresistor gas sensor exposed to an NO(2), NO(X) and O(3) gas mixture. The concentration of these pollutants that are known to be the most significant interfering compounds during ammonia detection with carbon nanotube gas sensors has been tracked by the ARPA monitoring network in the city of Milan and the historical dataset collected over one year has been used to train the Expert System.
JSAE/SAE International Fuels & Lubricants Meeting | 2007
Giovanni Pede; Ennio Rossi; Maria Chiesa; Fernando Ortenzi
Hydrogen-enriched combustion has been studied by several institutions and companies over the last three decades. The purpose of adding hydrogen to conventional fuels is to extend the lean limit of combustion because hydrogen improves flame stability and allows a lower temperature combustion. Even with stoichiometric mixture, HCNG advantages had been demonstrated, since blends determine a reduction of noxious emissions. In the framework of an EU project called BONG-HY, bench tests with HCNG on a natural gas vehicle had been carried on at ENEA. Results of lab tests show a fair improvement of the efficiency and CO2 emissions as well as an overall improvement regarding local pollutants.
International Journal of Hydrogen Energy | 2008
Fernando Ortenzi; Maria Chiesa; Riccardo Scarcelli; Giovanni Pede
International Journal of Hydrogen Energy | 2009
E.M. Stewart; Andrew E. Lutz; S. Schoenung; Maria Chiesa; Jay O. Keller; John E. Fletcher; Graham Ault; J.R. McDonald; Andrew Cruden
Applied Energy | 2015
B. Monteleone; Maria Chiesa; Riccardo Marzuoli; V.K. Verma; M. Schwarz; Elisa Carlon; C. Schmidl; A. Ballarin Denti
Environmental Science & Policy | 2014
Maria Chiesa; Maria Grazia Perrone; Niccolò Cusumano; L. Ferrero; G Sangiorgi; Ezio Bolzacchini; Arturo Lorenzoni; A. Ballarin Denti
Biomass & Bioenergy | 2016
Maria Chiesa; B. Monteleone; M.L. Venuta; G. Maffeis; S. Greco; A. Cherubini; C. Schmidl; Angelo Finco; Giacomo Alessandro Gerosa; A. Ballarin Denti
Environmental Science and Pollution Research | 2017
Riccardo Marzuoli; Angelo Finco; Maria Chiesa; Giacomo Alessandro Gerosa
Forests | 2017
Giacomo Alessandro Gerosa; Riccardo Marzuoli; Beatrice Monteleone; Maria Chiesa; Angelo Finco
Environmental Science and Pollution Research | 2017
Angelo Finco; Riccardo Marzuoli; Maria Chiesa; Giacomo Alessandro Gerosa