Results 31 to 40 of about 549,888 (271)

Resolving the controls of water vapour isotopes in the Atlantic sector

Nature Communications, 2019
Water isotope modelling is an important tool in climate reconstructions, but there remain gaps in our understanding of the effects upon oxygen and hydrogen isotope fractionation, and thus the source of the deposited signal.
Jean-Louis Bonne, Melanie Behrens, Hanno Meyer, Sepp Kipfstuhl, Benjamin Rabe, Lutz Schönicke, Hans Christian Steen-Larsen, Martin Werner   +7 more
doaj   +1 more source

Deuterium- and Electron-Shuttling Catalysis for Deoxygenative Deuteration of Alcohols

, 2023
A practical and precise method for visible-light-promoted deoxygenative deuteration of common aliphatic alcohols using D2O as the deuterium source is reported.
Xuesong Wu, Bin-Qing He, Bin-Qing He (6751142), Xuesong Wu (1614739)   +3 more
core   +1 more source

Effects of hydrogen plasma treatment on the electronic, optical, mechanical and chemical properties of Mo, Rh, Au, HOPG and Graphene [PDF]

, 2013
Interaction of ionic and atomic species of hydrogen isotopes (protium, deuterium and tritium) with transition metals and carbon materials is an important subject of research in the condensed matter physics and material science fields.
Eren, Baran
core   +1 more source

Direct depth distribution measurement of deuterium in bulk tungsten exposed to high-flux plasma

AIP Advances, 2017
Understanding tritium retention and permeation in plasma-facing components is critical for fusion safety and fuel cycle control. Glow discharge optical emission spectroscopy (GD-OES) is shown to be an effective tool to reveal the depth profile of ...
C. N. Taylor, M. Shimada
doaj   +1 more source

Summer paleohydrology during the Late Glacial and Early Holocene based on δ2H and δ18O from Bichlersee, Bavaria

Scientific Reports, 2023
Isotope-based records provide valuable information on past climate changes. However, it is not always trivial to disentangle past changes in the isotopic composition of precipitation from possible changes in evaporative enrichment, and seasonality may ...
Maximilian Prochnow, Paul Strobel, Marcel Bliedtner, Julian Struck, Lucas Bittner, Sönke Szidat, Gary Salazar, Heike Schneider, Sudip Acharya, Michael Zech, Roland Zech   +10 more
doaj   +1 more source

Isotopic composition of oxygen and hydrogen of ice wedges in Central Yamal

Лëд и снег, 2021
New data on the distribution of the isotopes δ18О and δD of ice wedges in Central Yamal are presented. In the summer of 2019, the massive wedge ice was studied in the thermal circus of the third marine terrace.
Ju. N. Chizhova, E. M. Babkin, A. V. Khomutov   +2 more
doaj   +1 more source

Holocene climatic changes in Greenland: different deuterium excess signals at Greenland Ice Core Project (GRIP) and North GRIP [PDF]

, 2005
International audienceWater stable isotope measurements (δD and δ18O) have been conducted on the Holocene part of two deep Greenland ice cores (Greenland Ice Core Project (GRIP) and NorthGRIP), located ∼320 km apart.
S. Falourd, Dahl-Jensen, D., O. Cattani, Johnsen, Sigfus Johann, Landais, A., Landais, Amaelle, Sveinsbjornsdottir, A., Masson-Delmotte, Valérie, Falourd, S., Sveinbjornsdottir, A., Jouzel, Jean, V. Masson‐Delmotte, T. Popp, Cattani, O., S. J. Johnsen, White, J.W.C., Jouzel, J., Sveinbjörnsdottir, A.E., Popp, T., White, J. W. C., Johnsen, S. J., Fischer, H., Johnsen, Sigfus J., Dahl-Jensen, Dorthe, A. Sveinsbjornsdottir, Stievenard, M., J. Jouzel, Stievenard, Michel, H. Fischer, Masson-Delmotte, V., Fischer, Hubertus, J. W. C. White, M. Stievenard, D. Dahl‐Jensen, A. Landais   +34 more
core   +1 more source

Energy Release in Deuterium–Constantan Interactions

Energies
A significant energy release over a short time is achieved in replicable experiments involving the interaction of deuterium gas with constantan specimens.
Dimiter Alexandrov
doaj   +1 more source

A discussion of deuterium excess production in rain water

Shui kexue jinzhan, 2012
Study on the characteristic of hydrogen and oxygen isotopes in precipitation is an important aspect of water cycle research.However,the production process of deuterium excess(D-excess) in rain water has not been fully explained.From the perspective of ...
MA Hong-yun, YIN Li-he, MA Li-jun
doaj   +1 more source

Vertical profile observations of water vapor deuterium excess in the lower troposphere [PDF]

Atmospheric Chemistry and Physics, 2019
We use airborne measurements of water vapor (H2Ov) stable isotopologues and complementary meteorological observations to examine how boundary layer (BL) dynamics, cloud processing, and atmospheric mixing influence the vertical structure of δD, δ18O, and ...
O. E. Salmon, O. E. Salmon, L. R. Welp, L. R. Welp, M. E. Baldwin, M. E. Baldwin, K. D. Hajny, B. H. Stirm, P. B. Shepson, P. B. Shepson, P. B. Shepson, P. B. Shepson   +11 more
doaj   +1 more source