Results 31 to 40 of about 453,439 (329)

Carbon utilization and storage through rehabilitation of groundwater wells

Scientific Reports
According to the Intergovernmental Panel on Climate Change (IPCC) of the United Nations (UN), rise in atmospheric concentration of carbon dioxide (CO $${_2}$$ 2 ) due to anthropogenic factors is considered as the primary driver for global climate change.
Vivek V. Patil, Gabriella Basso, Steven Catania, Christopher Catania, Timothy Ostapuk, Robert Vince   +5 more
doaj   +1 more source

A characterization of virtually embedded subsurfaces in 3-manifolds [PDF]

, 2015
The paper introduces the spirality character of the almost fiber part for a closed essentially immersed subsurface of a closed orientable aspherical 3-manifold, which generalizes an invariant due to Rubinstein and Wang.
Liu, Yi
core  

Reconstruction of Solar Subsurfaces by Local Helioseismology

, 2016
Local helioseismology has opened new frontiers in our quest for understanding of the internal dynamics and dynamo on the Sun. Local helioseismology reconstructs subsurface structures and flows by extracting coherent signals of acoustic waves traveling ...
A. C. Birch, A. C. Birch, A. C. Birch, A. C. Birch, A. C. Birch, A. C. Birch, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, A. G. Kosovichev, B. Jacobsen, D. A. Haber, D. A. Haber, D. O. Gough, I. N. Kitiashvili, J. Reiter, J. Schou, J. Zhao, J. Zhao, J. Zhao, Junwei Zhao, K. V. Parchevsky, K. V. Parchevsky, L. Gizon, Michal Švanda, Michal Švanda, Michal Švanda, P. H. Scherrer, R. Howard, S. Couvidat, S. Godier, T. Hartlep, T. L. Duvall Jr, Y. Liu   +37 more
core   +1 more source

RoHS‐Compliant, Cu‐Zn‐In‐Se‐Based Core/Multi‐shell Quantum Dots with Efficient and Tunable Short‐Wave Infrared Emission

Advanced Functional Materials, EarlyView.
An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha, Morena Cervino, Hossein Roshan, René Hübner, Angelika Wrzesińska‐Lashkova, Christine Steinbach, Yana Vaynzof, Francesco Di Stasio, Vladimir Lesnyak   +8 more
wiley   +1 more source

Flow Dynamics of Sulfate-Modified Water/Polymer Flooding in Micromodels with Modified Wettability

Applied Sciences, 2020
This work describes the flow behavior of the oil recovery obtained by the injection of sulfate-modified/low-salinity water in micromodels with different wettabilities.
Muhammad Tahir, Rafael E. Hincapie, Calvin L. Gaol, Stefanie Säfken, Leonhard Ganzer   +4 more
doaj   +1 more source

Threshold phenomena in erosion driven by subsurface flow

, 2004
We study channelization and slope destabilization driven by subsurface (groundwater) flow in a laboratory experiment. The pressure of the water entering the sandpile from below as well as the slope of the sandpile are varied.
Aharonson, Alexander E. Lobkovsky, Baker, Baker, Buffington, Dietrich, Dunne, Dunne, Dunne, Duran, Gomez, Higgins, Horton, Howard, Howard, Howard, Iverson, Izumi, Izumi, Kochel, Kochel, Kochel, Laity, Landau, Loewenherz, Martin, Montgomery, Montgomery, Owoputi, Schumm, Schörghofer, Shields, Smith, Taylor, Yalin   +34 more
core   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Directional sensitivity of fibre optic cables for surface seismic reflection distributed acoustic sensing: a review and potential solutions for enhanced sensitivity

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Fibre optic distributed acoustic sensing (FO-DAS) technology is continually gaining attention in the seismic industry due to its cost-effectiveness, longer aperture sensing, minimal maintenance, and its capability to deliver seismic data with high ...
Bamidele Abdulhakeem Adeniyi, Abdul Halim Abdul Latiff, Zainab Oyinda Adedeji, Abdul Rahim Md Arshad, Dejen Teklu Asfha   +4 more
doaj   +1 more source

Archaea in organic-lean and organic-rich marine subsurface sediments: an environmental gradient reflected in distinct phylogenetic lineages

Frontiers in Microbiology, 2012
Examining the patterns of archaeal diversity in little-explored organic-lean marine subsurface sediments presents an opportunity to study the association of phylogenetic affiliation and habitat preference in uncultured marine Archaea.
Alan M Durbin, Andreas eTeske
doaj   +1 more source

Perspectives on geologic carbon storage

Frontiers in Energy Research, 2023
Geologic carbon storage (GCS) is a fundamental pillar of carbon management that helps mitigate greenhouse gas emissions and addresses the negative effects of climate change. Viable CO2 storage sites share some of the same elements required for successful
Markus Albertz, Simon A. Stewart, Rajesh Goteti   +2 more
doaj   +1 more source