Results 81 to 90 of about 288,189 (359)

High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano

open access: yesGeophysical Research Letters, 2016
Resolving changes in topography through time using accurate high‐resolution digital elevation models (DEMs) is key to understanding active volcanic processes.
Marco Bagnardi   +2 more
doaj   +1 more source

Alice: The Rosetta Ultraviolet Imaging Spectrograph

open access: yes, 2006
We describe the design, performance and scientific objectives of the NASA-funded ALICE instrument aboard the ESA Rosetta asteroid flyby/comet rendezvous mission.
A'Hearn, M. F.   +10 more
core   +3 more sources

Spitzer Space Telescope Observations of the Nucleus of Comet 103P/Hartley 2 [PDF]

open access: yes, 2009
We have used the Spitzer Space Telescope InfraRed Spectrograph (IRS) 22-μm peakup array to observe thermal emission from the nucleus and trail of comet 103P/Hartley 2, the target of NASA’s Deep Impact Extended Investigation (DIXI). The comet was observed
A'Hearn, M. F.   +9 more
core   +2 more sources

Uni‐Axial Densification of Slurry‐Casted Li₆PS₅Cl Tapes: The Role of Particle Size Distribution and Densification Pressure

open access: yesAdvanced Materials, EarlyView.
Solid‐state batteries promise high energy density and safety for electric vehicles. This study examines the densification of slurry‐casted Li₆PS₅Cl separator tapes, highlighting the role of particle size distribution and uni‐axial pressure. Wet milling refines particles while preserving conductivity, and a critical compaction threshold leads to ...
Quoc‐Anh Tran   +14 more
wiley   +1 more source

Observing eruptions of gas-rich compressible magmas from space

open access: yesNature Communications, 2016
Satellite observations are an important tool in volcano monitoring, but observations such as ground deformation and gas emissions are treated independently. Here, the authors present a model coupling them through their link to magma volatile contents and
Brendan McCormick Kilbride   +2 more
doaj   +1 more source

Aggregate dust particles at comet 67P/Churyumov–Gerasimenko [PDF]

open access: yesNature, 2016
Comets are thought to preserve almost pristine dust particles, thus providing a unique sample of the properties of the early solar nebula. The microscopic properties of this dust played a key part in particle aggregation during the formation of the Solar
M. Bentley   +11 more
semanticscholar   +1 more source

The Dust Trail of Comet 67P/Churyumov-Gerasimenko

open access: yes, 2007
We report the detection of comet 67P/Churyumov-Gerasimenko's dust trail and nucleus in 24 micron Spitzer Space Telescope images taken February 2004. The dust trail is not found in optical Palomar images taken June 2003.
A'Hearn   +64 more
core   +1 more source

Mechanophysical Synthesis of Core/Shell Hybrid Supraparticles

open access: yesAdvanced Materials, EarlyView.
Collision‐driven mechanophysical synthesis enables rapid, chemical‐free assembly of core/shell hybrid supraparticles (HSPs) by embedding inorganic nanomaterials onto polymer microparticles. Governed by collision and interfacial energies, this scalable, solvent‐free method accommodates diverse material combinations, allowing multifunctional HSPs for ...
Jeonguk Hwang   +15 more
wiley   +1 more source

Calibration of SAR Polarimetric Images by Covariance Matching Estimation Technique with Initial Search

open access: yesRemote Sensing
To date, various methods have been proposed for calibrating polarimetric synthetic aperture radar (SAR) using distributed targets. Some studies have utilized the covariance matching estimation technique (Comet) for SAR data calibration.
Jingke Liu, Lin Liu, Xiaojie Zhou
doaj   +1 more source

Nearly Three Centuries of Lava Flow Subsidence at Timanfaya, Lanzarote

open access: yesGeochemistry, Geophysics, Geosystems, 2022
The 1730–1736 eruption on Lanzarote was one of the most significant volcanic eruptions to occur on the Canary Islands, with lavas covering over 200 km2.
Victoria Purcell   +6 more
doaj   +1 more source

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