Results 31 to 40 of about 638,398 (175)

The Economic Geology of Scandium, the Runt of the Rare Earth Element Litter

open access: yesEconomic Geology, 2018
Scandium is currently in high demand because of a number of technological advances in the aerospace and automotive sectors of the global economy. In this paper, we review the properties of scandium, the geology of the major economic and potentially ...
A. Williams-Jones, O. Vasyukova
semanticscholar   +1 more source

The Role of Tidal Mixing in Regulating the Poleward Meridional Heat Transport

open access: yesGeophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Based on an earth‐system climate model, a series of numerical experiments with different scaling factors of tidal mixing parameterization were conducted to study the impact of tidal mixing diffusivity on global meridional heat transport (MHT) in the ocean. Results show that an increase in vertical diffusivity κ associated with tidal mixing can
Dongyu Liao, Shiqiu Peng, Yu‐Kun Qian
wiley   +1 more source

Characterization and mapping of surface physical properties of Mars from CRISM multi-angular data: application to Gusev Crater and Meridiani Planum [PDF]

open access: yes, 2015
The analysis of the surface texture from the particle (grain size, shape and internal structure) to its organization (surface roughness) provides information on the geological processes.
Ceamanos, X.   +7 more
core   +3 more sources

Quasielastic Neutron Scattering Reveals Anisotropic Water Transport in Smectite Thin Film

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 24, December 22, 2025.
Clay minerals, vital in advanced technologies, exhibit tunable interfacial properties. Quasielastic neutron scattering is used on oriented beidellite films to study charge‐induced anisotropy. Results reveal anisotropic water dynamics and orientation‐dependent diffusion.
Yiran Jin   +11 more
wiley   +1 more source

Integrating effects of species composition and soil properties to predict shifts in montane forest carbon-water relations. [PDF]

open access: yes, 2018
This study was designed to address a major source of uncertainty pertaining to coupled carbon-water cycles in montane forest ecosystems. The Sierra Nevada of California was used as a model system to investigate connections between the physiological ...
Horwath, William R   +2 more
core   +1 more source

Crosslinked Poly(Acrylic Acid‐Co‐Acrylamide) Applied to Remove Hg(II) and the Effects of Its Exposure on Girardia tigrina

open access: yesPolymer Engineering &Science, Volume 65, Issue 12, Page 6964-6979, December 2025.
The polymeric adsorption of Hg(II) and the assessment of ecotoxicity. ABSTRACT In this study, an adsorbent was produced by the copolymerization of acrylic acid and acrylamide, followed by cross‐linking. The impact of pH, duration of contact, concentration, presence of interfering ions, and reuse was investigated.
Roberta Brito Vasconcelos   +4 more
wiley   +1 more source

Modulation of the Ocean Surface Skin Temperature and Heat Flux in the Presence of Strong SST Fronts

open access: yesJournal of Geophysical Research: Oceans, Volume 130, Issue 12, December 2025.
Abstract Previous studies of air‐sea interactions over sharp oceanic fronts have suggested that it is the ocean that drives the atmosphere across sub‐mesoscale ocean fronts, but it is the atmosphere that drives the ocean at synoptic scales; the responsible mechanism, however, is still a matter of debate.
Sandra L. Castro   +2 more
wiley   +1 more source

Geoecology of limestone‐hosted dryland calcicolous plants, North Otago, New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 5, Page 1100-1119, December 2025.
ABSTRACT Dryland calcicolous plants are drought‐tolerant species that are adapted to survive on alkaline low‐nutrient bare substrates derived from limestone around the world. Outcrops of the Otekaike Limestone of North Otago host some rare low‐growing (<10 cm) endemic calcicoles, and conservation reserves have been created at some localities.
Dave Craw, Cathy Rufaut, Marshall Palmer
wiley   +1 more source

Nitrate Concentrations of Ground Water from Limestone and Dolomitic Aquifers in the Northeastern Washington County Area, Arkansas [PDF]

open access: yes, 1990
The Ozark Region of Arkansas is a major poultry-producing area of the United States. Large quantities of poultry waste are spread as fertilizer on thin soils of pastureland overlying limestone and dolomitic aquifers.
McCalister, William K.   +1 more
core   +2 more sources

Quantification of Perturbation to the Daytime Lower Ionosphere From a Gamma Ray Burst Using ELF Remote Sensing

open access: yesGeophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract On 9 October 2022, a powerful gamma ray burst (GRB), GRB221009A, caused significant changes in the electron density of the lower ionosphere, as evidenced by VLF (3–30 kHz) radio wave observations. However, GRB221009A did not yield any observable signatures at the Schumann resonances (∼8, ∼14 Hz), which are also sensitive to the lower ...
M. Gołkowski   +8 more
wiley   +1 more source

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