Results 221 to 230 of about 70,841 (284)

Cross‐Project Deep‐Sea Sediment Geochemistry From XRF Spectra: A Self‐Supervised Foundation Model (MAX)

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.
Abstract The geochemistry of deep‐sea sediments is crucial for reconstructing past climate variations in detail. A range of models has been employed to enhance the resolution of geochemical measurements derived from rapid X‐ray fluorescence (XRF) scanning data.
An‐Sheng Lee   +3 more
wiley   +1 more source

GGR Handbook of Rock and Mineral Analysis Chapter 16 Nano‐Imaging for Advanced X‐Ray Fluorescence and Absorption Spectroscopy Applications

open access: yesGeostandards and Geoanalytical Research, Volume 49, Issue 3, Page 495-533, September 2025.
Key Points Synchrotron nano‐imaging is necessary to locate elemental nanophases. Trace metal quantification requires high sensitivity nano‐XRF. Trace metal speciation relies on nano‐XANES using nano‐XRF. This chapter (Nano‐Imaging for Advanced X‐ray Fluorescence and Absorption Spectroscopy Applications) is a contribution to the Geostandards and ...
Alexandre S. Simionovici   +1 more
wiley   +1 more source

Raman Spectroscopy for Nitrate Detection in Water: A Review of the Current State of Art. [PDF]

open access: yesACS Meas Sci Au
Luciani L   +6 more
europepmc   +1 more source

Measurement of the reaction γp→φp in deep inelastic e+p scattering at HERA

open access: hybrid, 1996
M. Derrick   +99 more
openalex   +1 more source

Understanding the Active Site Structures and Achieving Catalytic Activity Tuning of Atomically Dispersed FeN4 Sites for Oxygen Reduction Reaction

open access: yesChemPhysChem, Volume 26, Issue 16, August 23, 2025.
This review summarizes the recent advances regarding FeNC catalyst for oxygen reduction reaction (ORR). The fundamental aspects regarding active site structures, reaction mechanisms, as well as catalytic activity tuning, are discussed. Future directions regarding the active site dynamic evolution during ORR, impact of the solvation environment and ...
Jiayi Xu   +3 more
wiley   +1 more source

Cage-Based 3D Tetrahexagonal Boron Nitride Crystal with Excellent Terahertz Light Absorption. [PDF]

open access: yesACS Omega
Hussain K   +9 more
europepmc   +1 more source

Impact of Raman Scattering on SIF Retrievals From Hyperspectral Satellite Observations

open access: yesGeophysical Research Letters, Volume 52, Issue 15, 16 August 2025.
Abstract Solar‐induced chlorophyll fluorescence (SIF) retrieved from spaceborne measurements is widely used as an indicator of vegetation activity. However, this weak emission can be confused with the inelastic scattering component of sunlight that lacks distinctive Fraunhofer lines.
Suniti Sanghavi   +5 more
wiley   +1 more source

Active control of excitonic strong coupling and electroluminescence in electrically driven plasmonic nanocavities. [PDF]

open access: yesSci Adv
Zheng J   +11 more
europepmc   +1 more source

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