Search Results - "Gelfusa, M."

A hybrid physics/data-driven logic to detect, classify, and predict anomalies and disruptions in tokamak plasmas by Rossi, R., Gelfusa, M., Craciunescu, T., Wyss, I., Vega, J.

“…Abstract Disruptions are abrupt collapses of the configuration that have afflicted all tokamaks ever operated. Reliable observers are a prerequisite to the…”
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A systemic approach to classification for knowledge discovery with applications to the identification of boundary equations in complex systems by Murari, A., Gelfusa, M., Lungaroni, M., Gaudio, P., Peluso, E.

“…Classification, which means discrimination between examples belonging to different classes, is a fundamental aspect of most scientific and engineering…”
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Erratum to: On the optimal mix of Renewable Energy Sources, electrical energy storage and thermoelectric generation for the de-carbonization of the Italian electrical system by Romanelli, F., Gelfusa, M.

“…The original version of this article contained an error in the captions…”
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Data driven theory for knowledge discovery in the exact sciences with applications to thermonuclear fusion by Murari, A., Peluso, E., Lungaroni, M., Gaudio, P., Vega, J., Gelfusa, M.

“…In recent years, the techniques of the exact sciences have been applied to the analysis of increasingly complex and non-linear systems. The related…”
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On the optimal mix of renewable energy sources, electrical energy storage and thermoelectric generation for the de-carbonization of the Italian electrical system by Romanelli, F., Gelfusa, M.

“…The integration of intermittent renewable energy sources (RES) requires a substantial amount of electrical energy storage and significant increase of the grid…”
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Information theoretic and neural computational tools for meta-analysis of cumulative databases in the age of Big Physics experiments by Murari, A., Lungaroni, M., Spolladore, L., Peluso, E., Rossi, R., Gelfusa, M.

“…In the era of Big Data, many scientific disciplines and engineering activities rely on cumulative databases, consisting of many entries derived from different…”
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A maximum likelihood tomographic method applied to JET gamma ray emission during the current quench by Gelfusa, M., Craciunescu, T., Peluso, E., Giacomelli, L., Kiptily, V., Reux, C., Szepesi, G., Murari, A., Contributors, JET

“…In recent years, a new inversion method has been adapted to JET tomographic diagnostics. It is based on the Maximum Likelihood (ML) approach and has been…”
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Proposal of a testing procedure to qualify ITER window assemblies and absorbing coatings exposed to high microwave stray radiation by Gelfusa, M., Donnini, R., Vila, R., Simonetto, A., Bruschi, A., Cucè, D., Lazzari, A., Maquet, P., Mirizzi, F., Murari, A., Nobili, M., Peluso, E., Romanelli, F., Sirinelli, A., Sozzi, C.

“…In any large device for research on magnetic confinement thermonuclear fusion, the window assemblies are essential to preserve the conditions for successful…”
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On the effects of missing chords and systematic errors on a new tomographic method for JET bolometry by Peluso, E., Craciunescu, T., Gelfusa, M., Murari, A., Carvalho, P.J., Gaudio, P.

“…The accurate quantification of the emitted radiation is an important element in the interpretation of Tokamak performance and in the design of experiments. The…”
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A systematic investigation of radiation collapse for disruption avoidance and prevention on JET tokamak by Rossi, R., Gelfusa, M., Craciunescu, T., Spolladore, L., Wyss, I., Peluso, E., Vega, J., Maggi, C. F., Mailloux, J., Maslov, M., Murari, A.

“…To produce fusion reactions efficiently, thermonuclear plasmas have to reach extremely high temperatures, which is incompatible with their coming into contact…”
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A methodology for discriminating phase and amplitude effects on synchronization in tokamak pacing experiments by Craciunescu, T., Murari, A., Peluso, E., Lang, P.T., Harrer, G., Spolladore, L., Gelfusa, M., JET Contributors, the ASDEX Upgrade Team,  

“…The control of macroscopic instabilities, such as Edge Localised Modes (ELMs) and sawteeth, is becoming an essential ingredient in the optimisation of…”
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First 3D numerical simulations validated with experimental measurements during a LOVA reproduction inside the new facility STARDUST-Upgrade by Ciparisse, J.F., Malizia, A., Poggi, L.A., Gelfusa, M., Murari, A., Mancini, A., Gaudio, P.

“…•We model supersonic, turbulent 3D flow in the “STARDUST-Upgrade” facility.•We simulate air expansion into a low pressure vessel.•We compare numerical results…”
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Stray millimeter-wave radiation loads on ITER fused silica windows by Gelfusa, M., Simonetto, A., Mirizzi, F., Peluso, E., Calamida, A., Bruschi, A., Donnini, R., Sozzi, C., Romanelli, F., Cucè, D., Nobili, M., Lazzari, A., Vila, R., Sirinelli, A., Maquet, P.

“…In ITER, the window assemblies will be subjected to the combination of loads due to stray radiation and neutron streaming. Therefore, adequate tests are needed…”
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Design of a new experimental facility to reproduce LOVA and LOCA consequences on dust resuspension by Malizia, A., Gelfusa, M., Francia, G., Boccitto, M., Del Vecchio, M., Di Giovanni, D., Richetta, M., Bellecci, C., Gaudio, P.

“…•Design and realization of new experimental facility.•Numerical simulation to test the mechanical resistance of the new facility.•New way to experimentally…”
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Safety Analysis in Large Volume Vacuum Systems Like Tokamak: Experiments and Numerical Simulation to Analyze Vacuum Ruptures Consequences by Bellecci, C., Gelfusa, M., Richetta, M., Lupelli, I., Malizia, A., Gaudio, P.

“…The large volume vacuum systems are used in many industrial operations and research laboratories. Accidents in these systems should have a relevant economical…”
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Effects of the input polarization on JET polarimeter horizontal channels by Gaudio, P., Gelfusa, M., Murari, A., Orsitto, F., Boboc, A., JET–EFDA Contributors

“…In the past, the analysis of JET polarimetry measurements were carried out only for the vertical channels using a polarimetry propagation code based on the…”
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Dust tracking techniques applied to the STARDUST facility: First results by Malizia, A., Camplani, M., Gelfusa, M., Lupelli, I., Richetta, M., Antonelli, L., Conetta, F., Scarpellini, D., Carestia, M., Peluso, E., Bellecci, C., Salgado, L., Gaudio, P.

“…•Use of an experimental facility, STARDUST, to analyze the dust resuspension problem inside the tokamak in case of loss of vacuum accident.•PIV technique…”
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First Experimental Campaign to Demonstrate STARDUST-Upgrade Facility Diagnostics Capability to Investigate LOVA Conditions by Poggi, L. A., Malizia, A., Ciparisse, J. F., Gelfusa, M., Murari, A., Pierdiluca, S., Lo Re, E., Gaudio, P.

“…Given the urgent need to converge on precise guidelines for accident management in nuclear fusion plants, an experimental campaign has been carried out on the…”
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Simulations and Experiments to Reach Numerical Multiphase Informations for Security Analysis on Large Volume Vacuum Systems Like Tokamaks by Lupelli, I., Malizia, A., Richetta, M., Poggi, L. A., Ciparisse, J. F., Gelfusa, M., Gaudio, P.

“…Dust re-suspension as a consequences of loss of vacuum accident (LOVA) or loss of coolant accident (LOCA) situations inside a nuclear fusion plant (ITER-like)…”
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Numerical Simulations as Tool to Predict Chemical and Radiological Hazardous Diffusion in Case of Nonconventional Events by Ciparisse, J.-F., Malizia, A., Poggi, L. A., Cenciarelli, O., Gelfusa, M., Carestia, M. C., Di Giovanni, D., Mancinelli, S., Palombi, L., Bellecci, C., Gaudio, P.

“…CFD (Computational Fluid Dynamics) simulations are widely used nowadays to predict the behaviour of fluids in pure research and in industrial applications…”
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