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8 results on '"S., Ciarcia"'

1. Gravity, Geodesy and Fundamental Physics with BepiColombo’s MORE Investigation

Author

David Vokrouhlický, F. Budnik, Luciano Iess, G. Mitri, G. Di Achille, A. Di Ruscio, N. Ashby, Antonio Genova, Paolo Tortora, James S. Border, Gael Cascioli, Virginia Notaro, Giulia Schettino, Mattia Mercolino, F. De Marchi, Peter L. Bender, F. Longo, A. Olivieri, Alessandra Palli, Véronique Dehant, Roberto Formaro, I. di Stefano, S. Ciarcia, A. Lemaitre, Sergei A. Klioner, Daniele Serra, Thibault Damour, Xue-Feng Wu, Jean-Pierre Barriot, Marco Zannoni, Agnes Fienga, Meegyeong Paik, C. Benedetto, Giacomo Tommei, L. Simone, Paolo Cappuccio, T. Van Hoolst, Sami W. Asmar, M. M. Watkins, A. Konopliv, UCL - SST/ELI/ELIC - Earth & Climate, Iess L., Asmar S.W., Cappuccio P., Cascioli G., De Marchi F., di Stefano I., Genova A., Ashby N., Barriot J.P., Bender P., Benedetto C., Border J.S., Budnik F., Ciarcia S., Damour T., Dehant V., Di Achille G., Di Ruscio A., Fienga A., Formaro R., Klioner S., Konopliv A., Lemaitre A., Longo F., Mercolino M., Mitri G., Notaro V., Olivieri A., Paik M., Palli A., Schettino G., Serra D., Simone L., Tommei G., Tortora P., Van Hoolst T., Vokrouhlicky D., Watkins M., Wu X., and Zannoni M.

Subjects
mercury, radio science, planetary geodesy, relativistic gravity, spacecraft tracking systems, NASA Deep Space Network, Astronomy & Astrophysics, Accelerometer, law.invention, Planetary geodesy, Orbiter, Gravitational field, law, Tests of general relativity, Radio science, Ka band, Radio Science, Physics, Science & Technology, Relativistic gravity, Mercury, Radio science, Planetary geodesy, Relativistic gravity, Spacecraft tracking systems, Navigation system, Astronomy and Astrophysics, Mercury, Geodesy, Spacecraft tracking systems, Space and Planetary Science, Physical Sciences, Physics::Space Physics, Astrophysics::Earth and Planetary Astrophysics
Abstract

The Mercury Orbiter Radio Science Experiment (MORE) of the ESA mission BepiColombo will provide an accurate estimation of Mercury’s gravity field and rotational state, improved tests of general relativity, and a novel deep space navigation system. The key experimental setup entails a highly stable, multi-frequency radio link in X and Ka band, enabling two-way range rate measurements of 3 micron/s at nearly all solar elongation angles. In addition, a high chip rate, pseudo-noise ranging system has already been tested at 1-2 cm accuracy. The tracking data will be used together with the measurements of the Italian Spring Accelerometer to provide a pseudo drag free environment for the data analysis. We summarize the existing literature published over the past years and report on the overall configuration of the experiment, its operations in cruise and at Mercury, and the expected scientific results.

Published
2021

6. On-Board TTC Transponder for Secure Communications

Author

L. Simone, D. Gelfusa, S. Ciarcia, and G. Fittipaldi

Subjects
Spread spectrum, Engineering, Interference (communication), Transmission (telecommunications), business.industry, Communications satellite, Jamming, Direct-sequence spread spectrum, business, Energy (signal processing), Computer network, Transponder
Abstract

Thales Alenia Space - Italy (TAS-I) Radio Communication Equipment Group has developed in the last few years a very competitive Digital Platform for Satellite Secure Communications which has been largely used in Telemetry, Tracking and Command (TTC) link for military-oriented programs. The standard Direct Sequence Spread Spectrum Anti-Jamming performances are further enhanced by an Adaptive Digital Filtering to remove part of the interference energy before codes correlation, allowing to cope with a Jammer over Signal Power ration (J/S) up to 50dB. Moreover, PN codes with several years period increases furthermore Data Confidentiality and Transmission Secrecy. This paper offers a complete overview of the advanced Spread Spectrum Equipment for Satellite Secure Communications.

Published
2011
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7. The frido unit (Calabria-Lucania boundary, Italy): Deformation, petrology and geodynamic evolution

Author

Tramparulo, F. D., Vitale, S., Lorenzo Fedele, Ciarcia, S., Novellino, A., F. D. A., Tramparulo, Vitale, Stefano, Fedele, Lorenzo, S., Ciarcia, and A., Novellino

Subjects
Carpholite, southern Apennine, Ligurian, structural geology, Accretionary Complex
Abstract

L’Unità del Frido, una successione bacinale depositata su crosta di transizione oceanico-continentale (OCT) è stata subdotta dopo l'Oligocene superiore. Dopo aver raggiunto condizioni di metamorfismo di HP\LT è stata in seguito rapidamente esumata ed inclusa nel Complesso d’Accrezione Liguride. L’Unità del Frido è caratterizzata da quattro eventi deformativi principali, di cui i primi due avvenuti in condizioni di HP\LT. Il primo evento ha prodotto un clivaggio disgiuntivo (S1) mentre il secondo pieghe isoclinali e un clivaggio di crenulazione (S2). Il metamorfismo di HP\LT è testimoniato dalla presenza di diverse generazioni di Fe-Mg Carfolite e da un’associazione di mica bianca e clorite. Il terzo e quarto stadio deformativo hanno prodotto pieghe e thrust con vergenza, rispettivamente, verso NE e NW.

8. [Nimesulide: 25 years later].

Author

Mattia C, Ciarcia S, Muhindo A, and Coluzzi F

Subjects
Anti-Inflammatory Agents, Non-Steroidal adverse effects, Anti-Inflammatory Agents, Non-Steroidal pharmacokinetics, Humans, Italy, Pain drug therapy, Sulfonamides adverse effects, Sulfonamides pharmacokinetics, Anti-Inflammatory Agents, Non-Steroidal pharmacology, Sulfonamides pharmacology
Abstract

The first marketing authorization for nimesulide was approved in Italy in 1985. After one quarter of a century we evaluate its peculiar characteristics compared with other NSAIDs. Nimesulide is the only NSAID related to the arylsulfonamide class and is a "COX-2 preferential NSAIDs", because despite having a prevalent effect on COX-2, has a balanced action on both cyclooxygenase. The gastrointestinal absorption is rapid and complete and explains the short onset of action. Nimesulide is rapidly distributed in the synovial fluid, where it persists longer than in the blood, thus contributing to effectiveness of the drug in pain control. From the standpoint of safety, nimesulide arises NSAIDs with lower risk of upper gastrointestinal bleeding thanks to its preferential activity on COX-2. In relation to the risk of severe hepatic reactions, the benefit/risk profile of nimesulide was considered by european regulatory authorities similar to other NSAIDs. Respecting international guidelines, the use of nimesulide in pain management, as that of other NSAIDs, must be considered as an alternative therapy when paracetamol is ineffective, or where the pain is caused or supported by an inflammatory process.

Published
2010

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