Results 1 to 10 of about 927 (171)

Hyperspectral and Multispectral Image Fusion with Automated Extraction of Image-Based Endmember Bundles and Sparsity-Based Unmixing to Deal with Spectral Variability [PDF]

open access: yesSensors, 2023
The aim of fusing hyperspectral and multispectral images is to overcome the limitation of remote sensing hyperspectral sensors by improving their spatial resolutions.
Salah Eddine Brezini, Yannick Deville
doaj   +2 more sources

Clustering Supported Classification of ChemCam Data From Gale Crater, Mars

open access: yesEarth and Space Science, 2021
The Chemistry and Camera (ChemCam) instrument on board the Mars Science Laboratory (MSL) rover Curiosity has collected a very large and unique data set of in‐situ spectra and images of Mars since landing in August 2012.
Kristin Rammelkamp   +10 more
doaj   +1 more source

The new Algerian Digital Seismic Network (ADSN): towards an earthquake early-warning system [PDF]

open access: yesAdvances in Geosciences, 2013
Seismic monitoring in Algeria has seen great changes since the Boumerdes earthquake of 21 May 2003. Indeed, the installation of a new digital seismic network has resulted in a significant upgrade of the previous analog telemetry network. During the last
A. Yelles-Chaouche   +15 more
doaj   +1 more source

Pseudo-Relativistic Hartree–Fock and Fully Relativistic Dirac–Hartree–Fock Calculations of Radiative Parameters in the Fifth Spectrum of Lutetium (Lu V)

open access: yesAtoms, 2022
Using two independent theoretical methods based on the pseudo-relativistic Hartree–Fock (HFR) and the fully relativistic Multiconfigurational Dirac–Hartree–Fock (MCDHF) approaches, we computed the radiative parameters (transition probabilities and ...
Lucas Maison   +2 more
doaj   +1 more source

Stark broadening parameter tables for neutral calcium spectral lines, II [PDF]

open access: yesSerbian Astronomical Journal, 2000
Electron-, proton-, and ionized helium-impact broadening parameter tables for neutral calcium spectral lines, have been presented as a function of the temperature and the perturber density.
Dimitrijević M.S., Sahal-Brechot S.
doaj   +1 more source

Liquefaction Potential and Vs30 Structure in the Middle-Chelif Basin, Northwestern Algeria, by Ambient Vibration Data Inversion

open access: yesApplied Sciences, 2022
The Middle-Chelif basin, in northwestern Algeria, is located in a seismically active region. In its western part lies the El-Asnam fault, a thrust fault responsible for several strong earthquakes.
Abdelouahab Issaadi   +4 more
doaj   +1 more source

Evidence for Amorphous Sulfates as the Main Carrier of Soil Hydration in Gale Crater, Mars

open access: yesGeophysical Research Letters, 2022
Understanding the genesis of Martian soils is important to constrain the hydrogeologic history of the planet. Soils have the potential to record paleoenvironmental conditions, through the nature of secondary minerals formed during weathering.
G. David   +17 more
doaj   +1 more source

Jules Janssen : un refusé à l'ombre du soleil

open access: yesCahiers François Viète, 2015
Born into a middle-class family where art plays a major role, Jules Janssen was a self-taught scientist and had to work in the bank and then as a tutor while collecting university degrees.
Stéphane Le Gars
doaj   +1 more source

Stark broadening parameter tables for In II [PDF]

open access: yesSerbian Astronomical Journal, 2000
Electron-, proton-, and ionized helium-impact broadening parameter tables for In II spectral lines, are presented as a function of the temperature and the perturber density. Calculations have been performed within the semiclassical perturbation approach.
Dimitrijević M.S., Sahal-Brechot S.
doaj   +1 more source

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