Results 81 to 90 of about 45,086 (374)

Insights into the physiological and genomic characterization of three bacterial isolates from a highly alkaline, terrestrial serpentinizing system

Frontiers in Microbiology, 2023
The terrestrial serpentinite-hosted ecosystem known as “The Cedars” is home to a diverse microbial community persisting under highly alkaline (pH ~ 12) and reducing (Eh < −550 mV) conditions.
Jaclyn Thompson, Casey Barr, Lydia Babcock-Adams, Lina Bird, Eugenio La Cava, Arkadiy Garber, Arkadiy Garber, Yuichi Hongoh, Mark Liu, Kenneth H. Nealson, Akihiro Okamoto, Akihiro Okamoto, Akihiro Okamoto, Daniel Repeta, Shino Suzuki, Shino Suzuki, Clarissa Tacto, Michelle Tashjian, Nancy Merino, Nancy Merino, Nancy Merino   +20 more
doaj   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

Advanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss, Shiyi Wang, Brian P. Setzler, Yushan Yan, Adam Z. Weber   +4 more
wiley   +1 more source

Geologic setting of serpentine deposits on Mars [PDF]

, 2010
Serpentine, recently discovered on Mars using Mars Reconnaissance Orbiter data, is uncommon but found in three geologic settings: (1) in mélange terrains at the Claritas Rise and the Nili Fossae, (2) associated with a few southern highlands impact ...
Ehlmann, B. L., Murchie, S. L., Mustard, J. F.   +2 more
core   +1 more source

Advanced Design for Weakly Coupled Resonators by Automatic Active Optimization

Advanced Materials Technologies, EarlyView.
An Automatic Active Optimization (AAO) strategy integrates machine learning predictors and genetic algorithms in a closed‐loop workflow. By iteratively expanding its dataset with new discoveries, AAO overcomes the limits of conventional methods. This approach finds superior microstructural designs beyond the initial sample space. We demonstrate this on
Wei Yue, Yuan Gao, Fanping Sui, Jason Wang, Megan Teng, Peggy Tsao, Huicong Deng, Yande Peng, Liwei Lin   +8 more
wiley   +1 more source

Diversity of Rare and Abundant Prokaryotic Phylotypes in the Prony Hydrothermal Field and Comparison with Other Serpentinite-Hosted Ecosystems

Frontiers in Microbiology, 2018
The Bay of Prony, South of New Caledonia, represents a unique serpentinite-hosted hydrothermal field due to its coastal situation. It harbors both submarine and intertidal active sites, discharging hydrogen- and methane-rich alkaline fluids of low ...
Eléonore Frouin, Méline Bes, Bernard Ollivier, Marianne Quéméneur, Anne Postec, Didier Debroas, Fabrice Armougom, Gaël Erauso   +7 more
doaj   +1 more source

Pulsated Global Hydrogen and Methane Flux at Mid‐Ocean Ridges Driven by Pangea Breakup

Geochemistry, Geophysics, Geosystems, 2020
Molecular hydrogen production occurs through the serpentinization of mantle peridotite exhumed at mid‐ocean ridges. Hydrogen is considered essential to sustain microbial life in the subsurface; however, estimates of hydrogen flux through geological time ...
Andrew S. Merdith, Pablo García delReal, Isabelle Daniel, Muriel Andreani, Nicky M. Wright, Nicolas Coltice   +5 more
doaj   +1 more source

Simultaneous precipitation of magnesite and lizardite from hydrothermal alteration of olivine under high-carbonate alkalinity [PDF]

, 2014
13 pagesInternational audienceThe present study reports original experiments in order to investigate the simultaneous serpentinization and carbonation of olivine with relevance in Earth systems (e.g.
Chiriac, Rodica, Findling, Nathaniel, Janots, Emilie, Lafay, Romain, Montes-Hernandez, German, Toche, Francois   +5 more
core   +3 more sources

Thermodynamic evidence of giant salt deposit formation by serpentinization: an alternative mechanism to solar evaporation

Scientific Reports, 2019
The evaporation of seawater in arid climates is currently the main accepted driving mechanism for the formation of ancient and recent salt deposits in shallow basins.
M. Debure, A. Lassin, N. Marty, F. Claret, A. Virgone, S. Calassou, E. Gaucher   +6 more
semanticscholar   +1 more source

Overcoming Printing and Interfacial Challenges in Liquid Metal Direct Writing for Integrated Stretchable Electronics

Advanced Materials Technologies, EarlyView.
Liquid metal direct writing is advanced from a technological and fundamental point. Utilizing a kinematic bed, printing on large surfaces with irregularities is enabled. Furthermore, a pressure‐driven flow during printing is discovered that affects the thickness of traces.
Maximilian Krack, Lennert Purnal, Parth Vinayakrao Sewlikar, Sam Cuyvers, Gus Geurts, Rathul Nengminza Sangma, Derese Desta, Dieter Reenaers, Bart Ruttens, Iris De Graeve, Tom Hauffman, Seppe Terryn, Bram Vanderborght, Michaël Daenen, Wim Deferme, Monika Rai   +15 more
wiley   +1 more source

Thermodynamic Predictions of Hydrogen Generation during the Serpentinization of Harzburgite with Seawater-derived Brines

The Planetary Science Journal
Salty aqueous solutions (brines) occur on Earth and may be prevalent elsewhere. Serpentinization represents a family of geochemical reactions where the hydration of olivine-rich rocks can release aqueous hydrogen, H _2(aq) , as a byproduct, and hydrogen ...
Sanjoy M. Som, Serhat Sevgen, Adam A. Suttle, Jeff S. Bowman, Britney E. Schmidt   +4 more
doaj   +1 more source