A5015426143- Seismology and Earthquake Studies
- Seismic Waves and Analysis
- Physics of Superconductivity and Magnetism
- earthquake and tectonic studies
- Seismic Imaging and Inversion Techniques
- Geophysics and Sensor Technology
- Granular flow and fluidized beds
- Methane Hydrates and Related Phenomena
- Educational and Social Studies
- Material Dynamics and Properties
- Seventeenth-Century Political and Philosophical Thought
- Nietzsche, Schopenhauer, and Hegel
- Magnetic properties of thin films
- Advanced Condensed Matter Physics
- High-pressure geophysics and materials
- Theoretical and Computational Physics
- Philosophy and Historical Thought
- Diverse academic and cultural studies
- Underwater Vehicles and Communication Systems
- Underwater Acoustics Research
- Italian Literature and Culture
- Geological and Geophysical Studies Worldwide
- Kantian Philosophy and Modern Interpretations
- Superconducting Materials and Applications
- Marine and environmental studies
Istituto Nazionale di Geofisica e Vulcanologia
2012-2022
INGV Osservatorio Etneo
2022
École Polytechnique Fédérale de Lausanne
1997-2020
Instituto de Filosofía
2008-2020
INGV Osservatorio Nazionale Terremoti
2019
Italian Aerospace Research Centre
2016-2017
University of Foggia
2014
University of Palermo
2008
Alcatel Lucent (Germany)
1996
AT&T (United States)
1995-1996
Research Article| June 01, 2011 Seismic Network Evaluation through Simulation: An Application to the Italian National Antonino D'Alessandro; D'Alessandro Istituto Nazionale di Geofisica e Vulcanologia, Centro Terremoto section, Geophysical Observatory of Gibilmanna (OBS Lab), Contrada 1, C.P. 90015, Cefalù (Palermo), Italyantonino.dalessandro@ingv.it Search for other works by this author on: GSW Google Scholar Dario Luzio; Luzio Università degli Studi Palermo, department Chimica Fisica della...
We have measured the structure of field cooled flux line lattice (FLL) in single crystal Nb using small angle neutron scattering. Augmented by transport and thermodynamic data, a scenario for dramatic disordering FLL near peak effect emerges. A precursor to is an hexatic as positional order lost. As critical current rises, orientational longitudinal correlation lengths also fall, leading amorphous array lines at maximum.
We have investigated vortex motion below the quasistatic melting transition in a detwinned ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ single crystal by measuring differential resistance and voltage noise. With magnetic field parallel to copper-oxygen planes large, flat surface of sample, noise power spectrum permits us deduce that surfaces are dominant source vortices appear be flowing channels. In certain regimes, exhibits unusually sharp distinct...
Brief Report| October 01, 2013 Suitability of Low‐Cost Three‐Axis MEMS Accelerometers in Strong‐Motion Seismology: Tests on the LIS331DLH (iPhone) Accelerometer Antonino D'Alessandro; D'Alessandro Istituto Nazionale di Geofisica e Vulcanologia, Centro Terremoti, Rome, Italyantonino.dalessandro@ingv.itgiuseppe.danna@ingv.it Search for other works by this author on: GSW Google Scholar Giuseppe D'Anna Author and Article Information Publisher: Seismological Society America First Online: 14 Jul...
Abstract. The Istituto Nazionale di Geofisica e Vulcanologia (INGV) is an Italian research institution, with focus on Earth Sciences. INGV runs the National Seismic Network (Rete Sismica Nazionale, RSN) and other networks at national scale for monitoring earthquakes tsunami as a part of Civil Protection System coordinated by Department (Dipartimento Protezione Civile, DPC). RSN composed about 400 stations, mainly broadband, installed in Country surrounding regions; 110 stations feature also...
<p>In the Sicily Channel, volcanic activity has been concentrated mainly on Pantelleria and Linosa islands, while minor submarine volcanism took place in Adventure, Graham Nameless banks. The spanned mostly during Plio-Pleistocene, however, historical eruptions occurred 1831 Bank 1891 offshore Island. On Bank, 25 miles SW of Sciacca, eruption formed short-lived Ferdinandea Island that represents only Italian volcano active times currently almost completely unknown not yet monitored....
Abstract. In this paper, we introduce a project for the realization of first European real-time urban seismic network based on Micro Electro-Mechanical Systems (MEMS) technology. MEMS accelerometers are highly enabling technology, and nowadays, sensitivity dynamic range these sensors such as to allow recording earthquakes moderate magnitude even at distance several tens kilometers. Moreover, thanks their low cost smaller size, can be easily installed in areas order achieve an constituted by...
For YBa2Cu3O7-δ untwinned single crystals of differing purity a peak effect the critical current density as function temperature is observed by transverse a.c. susceptometry at very low frequency. Increasing shifts towards Tc and globally reduces Jc to lower values. We prove 3D regime testing whether or not cutting reconnecting flux lines in magnetically induced "force-free configurations" possible. The appears result from pre-melt softening line lattice.
Seafloor long-term, multiparameter, single-frame observatories have been developed within the framework of European Commission and Italian projects since 1995. A fleet five seafloor observatories, built-up starting from 1995 an effective synergy among research institutes industries, carried out a series long-term sea experiments. The are able to operate shallow waters deep sea, down 4,000 m w.d., simultaneously monitor broad spectrum geophysical environmental processes, including seismicity,...
In this study we have determined detailed Vp and Vs seismic velocity models of the Ionian lithosphere subducting beneath Tyrrhenian basin surrounding mantle, by applying a post-processing technique to large sample local earthquake tomography studies. Our permit us infer presence low anomalies within slab, which interpret as regions that are partially hydrated fluids released during subduction process. A petrological interpretation gives new details on magmatism volcanic Aeolian arc....
The northern coast of Sicily and its offshore area represent a hinge zone between sector the Tyrrhenian Basin, characterized by strongest crustal thinning, Sicilian belt which has emerged. This is part wider W-E trending right-lateral shear zone, been affecting Maghrebian Chain units since Pliocene. Seismological structural data have used to evaluate seismotectonic behavior investigated here. analysis was performed on set about 2100 seismic events occurred January 1988 October 2002 in...
A forced torsional pendulum which permits us to examine anelastic mechanical properties of solids as well for flux-lattice in type-II superconductors, has been built explore the low frequency and temperature range. It works on principle dynamic response function measurement appears be a powerful instrument studying structural defect motions flux line dynamics. As an additional quantity, magnetization or plastic strain can statically measured by same apparatus.
0 The Ocean Bottom Seismometer with Hydrophone (OBS/H) is an autonomous data-acquisition system which free falls to the sea floor record seismic and pressure signals generated by earthquakes tsunamis. development improvement of OBS/H's a necessary process for seismological research institutions, because in world about 90 percent all natural has epicenters offshore areas. This paper describes OBS/H developed "Istituto Nazionale di Geofisica e Vulcanologia" (INGV), designed reliably collect...
<p>The TOMO-ETNA experiment was planned in order to obtain a detailed geological and structural model of the continental oceanic crust beneath Mt. Etna volcano northeastern Sicily up Aeolian Islands (southern Italy), by integrating data from active passive refraction reflection seismic methodologies, magnetic gravity surveys. This paper focuses on marine activities performed within experiment, which have been carried out Ionian Tyrrhenian Seas, during three multidisciplinary...
We describe the first dense real-time urban seismic–accelerometric network in Italy, named OSU-CT, located historic center of Catania. The city lies region with greatest danger, vulnerability, and earthquake exposure entire Italian territory. OSU-CT was planned realized within project called EWAS “an Early WArning System for cultural heritage”, aimed at rapid assessment earthquake-induced damage testing an on-site early warning system. is mainly based on low-cost instrumentation ad hoc by...
In 2009 December, the OBSLab-INGV (Istituto Nazionale di Geofisica e Vulcanologia) deployed an Ocean Bottom Seismometer with Hydrophone (OBS/H) near epicentral area of main shock Palermo seismic sequence 2002. The monitoring activity had a total duration about 8 months. During this experiment, OBS/H recorded 247 very local microearthquakes, whose magnitude is between −0.5 and 2.5 TS − TP delay time 0.2 5 s, almost all which were undetected by Italian National Seismic Network. This...
We assess the first mission of GEOSTAR (GEophysical and Oceanographic STation for Abyssal Research) deep-sea multidisciplinary observatory its technical capacity, performance quality recorded data. The functioning system was verified by analyzing oceanographic, seismological geomagnetic measurements. Despite mission's short duration (21 days), data demonstrated observatory's technological reliability scientific value. After oceanographic data, we found two different regimes seawater...