- Oceanographic and Atmospheric Processes
- Microstructure and Mechanical Properties of Steels
- Marine and coastal ecosystems
- Nuclear Materials and Properties
- Quantum, superfluid, helium dynamics
- Magnetic Properties and Applications
- Nuclear reactor physics and engineering
- Climate variability and models
- Nuclear Physics and Applications
- Spacecraft and Cryogenic Technologies
- Ocean Waves and Remote Sensing
- Graphite, nuclear technology, radiation studies
- Superconducting Materials and Applications
- Reservoir Engineering and Simulation Methods
- Meteorological Phenomena and Simulations
- Marine and fisheries research
- Material Properties and Failure Mechanisms
- Fusion materials and technologies
- Tropical and Extratropical Cyclones Research
- Magnetic properties of thin films
- Metallurgical Processes and Thermodynamics
- Heat Transfer and Boiling Studies
- Therapeutic Uses of Natural Elements
- Metallurgy and Material Science
- Hydrogen embrittlement and corrosion behaviors in metals
Universidade de Brasília
2024
Universidad de Las Palmas de Gran Canaria
2002-2023
CEA Grenoble
1960-1968
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
1961-1964
Institut Fourier
1953-1962
Université Grenoble Alpes
1959-1962
Laboratoire des Matériaux et du Génie Physique
1950
University of Bern
1903
On montre que le ferrite de cuivre prend par refroidissement lent; une structure quadratique a grand champ coercitif, saturation magnetique plus faible et dont rapport des axes c/α atteint 1,06. A chaque temperature correspond un etat d'equilibre caracterise valeur differente c/a, comprise entre I L'etude aux rayons X, l'aide du rayonnement Co K a, les varietes cubiques quadratiques sont proches l'etat inverse, mais la fraction λ ions Fe+++ croit sur sites tetraedriques au fur mesure...
Particulate organic carbon flux from the shelf to oceanic waters during upwelling between 19°N and 25°N off Mauritania has been analyzed using coastal zone color scanner (CZCS) imagery. Biomass in giant filament estimated surface pigment concentration registered by CZCS time series December 1983, March 1984, October 1984. Evidence for active phytoplankton growth offshore is presented. Formation of seems be favored combination a number factors perhaps unique Mauritanian shelf. The large‐scale...
Submarine volcanic eruptions took place at the island El Hierro (Canary Islands) between October 2011 and March 2012. The event produced plumes of discoloured waters due to discharge matter, magmatic gases, hydrothermal fluids. expelled materials, which behaved like oceanic tracers, were detected from site volcano open sea by remote-sensing techniques using different level-2 (L2) products Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. In order assess effect anomalous...
Abstract The South Atlantic Ocean plays a key role in the heat exchange of climate system, as it hosts returning flow Meridional Overturning Circulation (AMOC). To gain insights on this role, using data from three hydrographic cruises conducted Subtropical gyre at 34.5°S, 24°S, and 10°W, we identify water masses compute absolute geostrophic circulation inverse modeling. In upper layers, currents describe anticyclonic with northwest flowing Benguela Current (26.3 ± 2.0 Sv 21.2 1.8 24°S) above...
On a étudié les propriétés magnétiques et la chaleur spécifique, à des températures inférieures 4 °K pour jusqu'à quelques centièmes de degré, d'une série d'alliages dilués cobalt dans le cuivre (concentration inférieure 3 %).L'utilisation trempes énergiques permis maintenir une fraction importante du en « solution ».Le dépouillement permet suggérer l'aspect général précipités qui apparaissent.Les valeurs chaleurs spécifiques ne fournissent pas renseignement complémentaire.Abstraet.2014 The...
This study presents an optimized method for processing and retrieving digital data from 1950s aerial photographs of the Plano Piloto area in Brasília. In analogous contexts, internal orientation parameters are often unavailable, external must be obtained through non-standard approaches, as identification geolocation control points field becomes impractical substantially altered landscapes. Nevertheless, advancements computer vision techniques, integrated into modern photogrammetry software...
The main purposes of this paper are to identify and evaluate the oceanic mesoscale features that appear in Atlantic Ocean eastern boundary, 20-40° N, 19-9° W, using ERS-1 (1992-1993) satellite altimeter data. sea surface height anomalies eddy kinetic energy fields calculated. High values, between 0.03 0.05 m 2 s -2, observed with data Canary region mainly summer. These maximum values associated eddies located downstream Gran Canaria Tenerife (Canary Islands). Comparison situ measurements...
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Wort Gurjun ist indischen Ursprungs; ebenso Garjan oder Gardschan (Garjantel = Holzol).Dipterocarpus von 6 ~c doppelt, mepov, Fliigel und xapxo;, Frucht, wegen der langen zweiflugeligen Fruchte.2) auch
Abstract Fractal properties of deep ocean current speed time series, measured at a single-point mooring on the Madeira Abyssal Plain 1000- and 3000-m depth, are explored over range between one week 5 years, by using detrended fluctuation analysis multifractal methodologies. The reveals existence two subranges with different scaling behaviors. Long-range temporal correlations following power law found in time-scale approximately 50 days while Brownian motion–type behavior is observed for...