Results 41 to 50 of about 32,324 (258)

Study on seafloor hydrothermal systems circulation flow and heat transfer characteristics

open access: yesMathematical Biosciences and Engineering, 2022
<abstract> <p>In this work, the numerical simulation study of the hydrothermal flow and heat transfer process in the porous rock under 30 MPa pressure was developed. The flow and heat transfer characteristics of hydrothermal in rocks with different porosities are studied by changing the porosity of the rock.
Yi Ren   +7 more
openaire   +3 more sources

Space-weighted seismic attenuation mapping of the aseismic source of Campi Flegrei 1983-84 unrest [PDF]

open access: yes, 2017
Peer reviewedPublisher ...
Amoruso, A   +5 more
core   +1 more source

Geochemical and visual indicators of hydrothermal fluid flow through a sediment-hosted volcanic ridge in the Central Bransfield Basin (Antarctica). [PDF]

open access: yesPLoS ONE, 2013
In the austral summer of 2011 we undertook an investigation of three volcanic highs in the Central Bransfield Basin, Antarctica, in search of hydrothermal activity and associated fauna to assess changes since previous surveys and to evaluate the extent ...
Alfred Aquilina   +9 more
doaj   +1 more source

Numerical Simulation of Chemical Reactions’ Influence on Convective Heat Transfer in Hydrothermal Circulation Reaction Zones

open access: yesEnergies
Chemical reactions, mineral diffusion, and deposition are pivotal in understanding the mechanisms of mineral deposition and the formation of seafloor sulfides in the hydrothermal circulation process.
Yina Luo, Yuebo Feng, Da Zhang, Yan Li
doaj   +1 more source

Pseudo-3D seismic imaging of Geolin Mounds hydrothermal field in the Southern Okinawa Trough offshore NE Taiwan

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2019
To explore a new discovering hydrothermal field Geolin Mounds in the Southern Okinawa Trough (SOT), a multi-scale geophysical investigation cruise including single-beam echo sounder, sub-bottom profiler (SBP) and multi-channel seismic (MCS) surveys were ...
Ho-Han Hsu   +9 more
doaj   +1 more source

Subseafloor Cross‐Hole Tracer Experiment Reveals Hydrologic Properties, Heterogeneities, and Reactions in Slow‐Spreading Oceanic Crust

open access: yesGeochemistry, Geophysics, Geosystems, 2020
The permeability, connectivity, and reactivity of fluid reservoirs in oceanic crust are poorly constrained, yet these reservoirs are pathways for about a quarter of the Earth's heat loss, and seawater‐rock exchange within them impact ocean chemical ...
C. Geoffrey Wheat   +6 more
doaj   +1 more source

The Lau Basin Float Experiment (LAUB-FLEX) [PDF]

open access: yesOceanography, 2012
Before 2004, little was known about deep ocean circulation in the Lau Basin, a semi-enclosed basin in the South Pacific Ocean, about 1,500 km north of New Zealand.
Kevin Speer, Andreas M. Thurnherr
doaj  

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

open access: yesAdvanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief   +20 more
wiley   +1 more source

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

open access: yesAdvanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras   +6 more
wiley   +1 more source

Modes of crustal accretion and their implications for hydrothermal circulation [PDF]

open access: yesGeophysical Research Letters, 2016
AbstractHydrothermal convection at mid‐ocean ridges links the ocean's long‐term chemical evolution to solid earth processes, forms hydrothermal ore deposits, and sustains the unique chemosynthetic vent fauna. Yet the depth extent of hydrothermal cooling and the inseparably connected question of how the lower crust accretes remain poorly constrained ...
Theissen-Krah, Sonja   +2 more
openaire   +2 more sources

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