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532 results on '"Monorchio, Agostino"'

201. Radio frequency system for thermal soil remediation

Author

Degiorgi, Marco, primary, Usai, Pierpaolo, additional, Fontana, Nunzia, additional, Ciampalini, Chiara, additional, Monorchio, Agostino, additional, Bertoneri, Matteo, additional, Tonlorenzi, Sara, additional, Oddo, Alessandro, additional, Terzet, Federico Bonessio, additional, Armogida, Andreina, additional, Biggi, Matteo, additional, Vezzani, Gianfranco, additional, Bientinesi, Matteo, additional, Petarca, Luigi, additional, and Valeri, Fabio, additional

Published
2016
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213. A 7T double-tuned (1H/31P) microstrip surface RF coil for the IMAGO7 MR scanner

Author

Retico, Alessandra, primary, Vitacolonna, Assunta, additional, Galante, Angelo, additional, Florio, Tiziana M., additional, Cimini, Annamaria, additional, Stara, Riccardo, additional, Tiberi, Gianluigi, additional, Tosetti, Michela, additional, Fontana, Nunzia, additional, Manara, Giuliano, additional, Monorchio, Agostino, additional, and Alecci, Marcello, additional

Published
2015
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216. Investigation of maximum local specific absorption rate in 7 T magnetic resonance with respect to load size by use of electromagnetic simulations

Author

Tiberi, Gianluigi, primary, Fontana, Nunzia, additional, Costagli, Mauro, additional, Stara, Riccardo, additional, Biagi, Laura, additional, Symms, Mark Roger, additional, Monorchio, Agostino, additional, Retico, Alessandra, additional, Cosottini, Mirco, additional, and Tosetti, Michela, additional

Published
2015
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224. Time Domain Hybrid Methods

Author

GOMEZ MARTN, R., RUBIO BRETONES, A., Monorchio, Agostino, and GONZALEZ GARCIA, M. FERNANDEZ PANTOJA AND S.

Published
2004

225. Analysis of Waveguide Components and Inductive Frequency Selective Surfaces by Using a Hybrid Mode Matching / Finite Element Technique with Edge Elements

Author

Monorchio, Agostino, Manara, Giuliano, Grassi, P, and Arena, D.

Subjects
Electromagnetic field, Floquet theory, Physics, Radiation, Acoustics, Finite element method, Selective surface, Electronic, Optical and Magnetic Materials, law.invention, Magnetic field, Transverse plane, law, Electrical and Electronic Engineering, Waveguide, Eigenvalues and eigenvectors
Abstract

A hybrid mode matching (MM)–finite element (FE) technique is presented, with application to the analysis of waveguide components and inductive frequency selective surfaces (FSSs). The proposed hybrid approach combines the computational efficiency of the MM analysis with the versatility and flexibility of the FE method. One of the key features of the present formulation is the expansion of transverse electric and magnetic fields by using tangential vector edge elements (TVEEs), which guarantee spurious-free solutions; indeed, this property is very important for an accurate numerical determination of the modal eigenvalues. FSSs, realized by periodically perforating thick metallic screens with arbitrarily shaped apertures, are analyzed by expanding the electromagnetic fields in the free-space region through a complete set of Floquet modes that allows us to reduce the analysis to the single periodicity cell; modes inside apertures are determined through a FEM procedure. A spectral criterion to determine the c...

Published
2004

246. Analysis of realistic ultrawideband indoor communication channels by using an efficient ray-tracing based method

Author

Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences, Malik, Wasim Q., Malik, Wasim Qamar, Manara, Giuliano, Edwards, David J., Monorchio, Agostino, Bertini, Stefano, Tiberi, Gianluigi, Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences, Malik, Wasim Q., Malik, Wasim Qamar, Manara, Giuliano, Edwards, David J., Monorchio, Agostino, Bertini, Stefano, and Tiberi, Gianluigi

Abstract

A fundamental step in ultrawideband (UWB) communication system design involves the characterization of the indoor propagation channel. In this paper, we show that the UWB propagation channel parameters can be accurately predicted by employing ray tracing (RT) simulation carried out at various frequencies over the signal bandwidth. It is important to note that the determination of the rays reaching a given location is made only once, as the RT algorithm is independent of frequency. A parallel ray approximation (PRA) is used to significantly improve the computational efficiency of the RT based method. Moreover the accuracy of the approximation is verified through a measurement campaign., Fondazione Cassa di Risparmio di Pisa

Published
2010

247. Electromagnetic scattering from longitudinally corrugated cylinders

Author

Manara, Giuliano, Monorchio, Agostino, and Pelosi, Giuseppe

Subjects
Electromagnetic waves -- Analysis, Scattering (Physics) -- Analysis, Business, Computers, Electronics, Electronics and electrical industries
Abstract

The scattering of plane electromagnetic waves from circular cross-section cylinders, longitudinally corrugated to realize anisotropic structures, is analyzed. The solution is devised at oblique incidence and for an arbitrary polarization of the incident wave using a rigorous Floquet modal expansion of the field. The implementation of the procedure is discussed with emphasis to its numerical efficiency. Index Terms - Electromagnetic scattering.

Published
1997

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