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Enea G.,Engility Corporation | Porretta M.,Ingegneria Dei Sistemi IDS
28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012 | Year: 2012

This paper presents a comparison between the concepts underlying 4D Trajectory Based Operations (TBOs) from the double viewpoint of NextGen and SESAR programs. In the proposed analysis, motivations justifying the introduction of 4D TBOs are presented first. After that, the different and similar technologies that are being applied to support 4D TBOs are discussed. This is followed by a discussion focused on the results obtained from different human-in-the-loop simulation activities. In addition, preliminary flight trials activities, planned and partly executed for concepts' refinement and final validation, are also discussed. These validation activities, carried out on both NextGen and SESAR sides, aim to assess the impact of the aforementioned supporting technologies on both pilots and Air Traffic Controllers. This impact will actually be a key element for the effective implementation of 4D TBOs. Early benefits identified for SESAR and NextGen are described next. Finally, some comparisons and preliminary conclusions are presented. Source

Gentile C.,Polytechnic of Milan | Bernardini G.,Ingegneria Dei Sistemi IDS
Structure and Infrastructure Engineering | Year: 2010

Recent progress in radar techniques and systems has led to the development of a microwave interferometer, potentially suitable for non-contact vibration monitoring of civil engineering structures. The main characteristic of the new radar system, named IBIS-S, is the possibility of simultaneously measuring the (static or dynamic) displacement at several points of a structure with high sensitivity. The paper first describes the technical characteristics of the microwave interferometer and the results of laboratory tests carried out to evaluate the actual displacement sensitivity of the equipment. Subsequently, the application of the sensor to the measurement of ambient vibration response on a concrete bridge is presented and discussed. © 2010 Taylor & Francis. Source

Bandinelli M.,Ingegneria Dei Sistemi IDS | Mori A.,Ingegneria Dei Sistemi IDS | Galgani G.,Ingegneria Dei Sistemi IDS | Romano D.,University of LAquila | And 3 more authors.
IEEE Transactions on Electromagnetic Compatibility | Year: 2015

This paper describes the approach developed to model the current return networks installed aboard aircrafts having parts made in composite materials. The surface partial element equivalent circuit (PEEC) method is adopted for its high-fidelity modeling capabilities, and its accuracy in the low-frequency region, which is of interest for the characterization of the return networks. State of the art of PEEC modeling is implemented in order to allow real-life aircrafts to be modeled. A special complex mock-up has been realized and measured. The numerical results are compared with measurements to assess their adequacy. © 1964-2012 IEEE. Source

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