Results 101 to 110 of about 76,997 (309)

Cassini detection of Enceladus' cold water-group plume ionosphere

open access: yes, 2009
This study reports direct detection by the Cassini plasma spectrometer of freshly-produced water-group ions (O+, OH+, H2O+, H3O+) and heavier water dimer ions (HxO(2))(+) very close to Enceladus where the plasma begins to emerge from the plume.
Crary, FJ   +8 more
core  

Plume-top altitude time-series during 2010 volcanic eruption of Eyjafjallajökull

open access: yes, 2011
The eruption of Eyjafjallajökull volcano in 2010 lasted for 39 days, 14 April–23 May. The eruption had two explosive phases separated by a phase with lava formation and reduced explosive activity.
Arason, Pordur   +8 more
core   +1 more source

Processes influencing ozone levels in Alaskan forest fire plumes during long-range transport over the North Atlantic [PDF]

open access: yes, 2006
A case of long-range transport of a biomass burning plume from Alaska to Europe is analyzed using a Lagrangian approach. This plume was sampled several times in the free troposphere over North America, the North Atlantic and Europe by three different ...
G. Sachse   +68 more
core   +1 more source

Electrostatic Self‐Assembly Induced Nest‐Like MXene Networks on Fabric for Ultra‐Broadband Flexible Absorption

open access: yesAdvanced Science, EarlyView.
In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo   +7 more
wiley   +1 more source

Heterojunction‐Engineered Mass Spectrometry Platform for Deciphering Serum Metabolic Fingerprints in Diagnosis of Respiratory Diseases

open access: yesAdvanced Science, EarlyView.
Hollow Co3O4/TiO2 heterojunctions are engineered for high‐throughput laser desorption/ionization mass spectrometry. The built‐in electric field drives efficient charge separation and photothermal conversion, while the hierarchical mesoporous network enables robust salt and protein tolerance.
Junyu Chen   +8 more
wiley   +1 more source

Properties and Dispersal of a Hydrothermal Plume in a Weakly Stratified Under‐Ice Environment

open access: yesGeochemistry, Geophysics, Geosystems
The Aurora vent field (82°53.83′N, 6°15.32′W) is located in the weakly stratified Arctic Ocean under perennial ice cover at the western edge of the ultraslow‐spreading Gakkel Ridge, the slowest spreading mid‐ocean ridge on Earth.
Maren Walter   +11 more
doaj   +1 more source

Some features of the structure of the mantle of the Eastern Mediterranean and their geodynamic interpretation

open access: yesГеофизический журнал, 2016
We consider specific velocity anomalies and the corresponding mantle structures of the East Mediterranean-Black Sea-Caspian region. The anomalies are located on latitudinal and longitudinal seismic tomography sections obtained by constructing 3D P ...
O. B. Gintov   +3 more
doaj   +1 more source

Plume-top altitude time-series during May 2011 volcanic eruption of Grímsvötn, Iceland

open access: yes, 2012
Plume-top altitude time series of the volcanic plume during the eruption of Grímsvötn in Iceland 21-28 May 2011. The altitude was estimated from weather radar echo top data from two weather radars, Keflavik and Klaustur.
Arason, Pordur   +7 more
core   +1 more source

Enhancing Biogenic Formic Acid Production in the Modified OxFA Process by Acetonitrile Addition

open access: yesAdvanced Science, EarlyView.
In this study, the beneficial effect of using acetonitrile as a co‐solvent in the modified OxFA process is shown, outperforming methanol, demonstrating improved reaction kinetics combined with high selectivity for the HPA‐2 (H5PV2Mo10O40) catalyzed oxidation of xylose to FA.
Jan‐Dominik H. Krueger   +7 more
wiley   +1 more source

Sulfur dioxide plume erupts from Vanuatu volcano

open access: yes, 2012
On the tiny island of Tanna, Vanuatu in the South Pacific is one of the world's most active volcanoes: Mt Yasur. The NASA Aura satellite orbited overhead today (March 18, 2011), the Ozone Mapping Instrument detected a large sulfur dioxide plume being ...
National Oceanic and Atmospheric Administration
core  

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