Results 61 to 70 of about 499,001 (359)

An Improved Cr-EA-IRMS Method for the Effective Determination of the Hydrogen Isotopes in Coal Samples

Frontiers in Chemistry, 2022
Hydrogen isotope analysis of coal is an important tool in the geochemical analysis of coal. The traditional method of hydrogen isotope analysis of coal requires the oxidation of organic matter bound hydrogen in coal to water by an oxidizing agent and ...
Hongwei Li, Hongwei Li, Lianjun Feng, Lianjun Feng   +3 more
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Cadmium Isotope Fractionation and Its Applications in Tracing the Source and Fate of Cadmium in the Soil: A Review

Yankuang ceshi, 2022
BACKGROUND Soil cadmium pollution has become one of the main factors that endanger human health. Rapid and effective remediation of Cd pollution soil requires a fundamental understanding of Cd sources and geochemical cycling.
WAN Dan, CHEN Jiubin, ZHANG Ting, AN Yuchen, SHUAI Wangcai   +4 more
doaj   +1 more source

In Search of the Solar Wind Nitrogen Isotope Composition: Analysis of a Gold Plate from the Genesis Spacecraft Concentrator [PDF]

, 2008
We report N isotope analysis of a gold plate from the Genesis spacecraft concentrator.
Allton, J. H., Burnard, P. G., Burnett, D. S., Franchi, I. A., Heber, V. S., Marty, B., Sestak, S., Wieler, R., Wiens, R. C., Zimmermann, L.   +9 more
core  

Intercomparison of soil pore water extraction methods for stable isotope analysis [PDF]

, 2016
Funded by NSERC Discovery Grant U.S. Forest Service U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies OfficePeer ...
McDonnell, Jeffery J., Orlowski, Natalie, Pratt, Dylan L.   +2 more
core   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source

Multi-proxy bioarchaeological analysis of skeletal remains shows genetic discontinuity in a Medieval Sicilian community

Royal Society Open Science
The medieval period in Sicily was turbulent, involving successive regime changes, from Byzantine (Greek Christian), Aghlabid (Sunni Muslim), Fatimid (Shīʿa Muslim), to Normans and Swabians (Latin Christian). To shed new light on the local implications of
Aurore Monnereau, Alice Ughi, Paola Orecchioni, Richard Hagan, Helen M. Talbot, Efthymia Nikita, Derek Hamilton, Petrus Le Roux, Alessandra Molinari, Martin Carver, Oliver E. Craig, Camilla F. Speller, Michelle M. Alexander, Nathan Wales   +13 more
doaj   +1 more source

Water sources effects on soil salinity and biomass production of agriculture and agroforest systems in raised fields

Journal of Plant Interactions, 2020
This study investigates the sources of water under four modes, namely, normal fields, Raised Fields, single agriculture in Raised Fields, and agroforest system in Raised Fields, by using a combination of δ18O, δ2H and δ13C and their effects on crop yield
Hengyu Hu, Mengkun Zhang, Min Fu, Jihao Qin, Jiansheng Chen, Yupeng Feng, Geng Li, Mingzhen Zhai, Yin Zhang, Tangyuan Ning   +9 more
doaj   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Latest advancements in the application of analytical science to ancient and historical glass production

UISPP Journal, 2019
Major recent developments in the archaeometry of ancient and historical glass production are outlined, and examples of methods which are set to determine the future agenda of glass studies are presented.
Chloë N. Duckworth
doaj   +1 more source