Results 121 to 130 of about 4,869,013 (329)

Orbital and eustatic control of basin hydrology during the first stage of the Messinian Salinity Crisis

open access: yesThe Depositional Record, EarlyView.
The paleo‐hydrology of the Sorbas Basin (SE Spain) and the wider Mediterranean region during the deposition of the Primary Lower Gypsum (PLG) stage of the Messinian Salinity Crisis, from ~5.97 to ~5.60 Ma, was affected by tectonics, precession‐forced climate oscillations, and eustatic sea‐level change.
Fernando Gázquez   +8 more
wiley   +1 more source

An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system

open access: yesDeep Underground Science and Engineering, EarlyView.
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand   +5 more
wiley   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

open access: yesDeep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao   +5 more
wiley   +1 more source

Weights, sharp maximal functions and hardy spaces [PDF]

open access: gold, 1980
Jan-Olov Strömberg, Alberto Torchinsky
openalex   +1 more source

Lineage‐specific phylogenetic structure of boreal habitats suggests different assembly processes across phylogenetic and spatial scales

open access: yesEcography, EarlyView.
The phylogenetic distance among species in a community (community phylogenetic structure) has been used to infer deterministic and stochastic assembly processes, albeit with criticisms. The effect of phylogenetic scale (old versus young lineages) and spatial scale on measures of CPS are rarely tested simultaneously, especially in the boreal biome, yet ...
Angelo D. Armijos Carrion   +6 more
wiley   +1 more source

Hardy and Lipschitz spaces on subsets of $R^{n}$ [PDF]

open access: bronze, 1984
Alf Jonsson, Peter Sjögren, Hans Wallin
openalex   +1 more source

A Reversed‐Active Sites Strategy to Boost the Activity and Durability of Perovskite for Seawater Electrolysis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The capacity difference for inhibiting Cl− corrosion of LOM and AEM based catalysts preliminarily proves the effectiveness of the reversed‐active sites strategy. By virtue of regulation of ion ratio, perovskite La0.3SrCo0.5Fe0.5Ox (La0.3) with higher participation of lattice oxygen in OER, rapid bulk oxygen diffusion, and excellent OH− adsorption ...
Chao Xu   +7 more
wiley   +1 more source

Silver‐Based Supportless Membrane Electrode Assemblies for Electrochemical CO2 Reduction

open access: yesElectrochemical Science Advances, EarlyView.
ABSTRACT Most commonly, electrochemical CO2 reduction is performed in a three‐compartment setup employing gas diffusion electrodes (GDEs) to decrease mass transport limitations of the gaseous reactant CO2 to the reaction interface. However recently, there has been a rising number of investigations on suitable membrane electrode assemblies (MEAs) to ...
Lydia Weseler   +3 more
wiley   +1 more source

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