Results 81 to 90 of about 572,691 (264)

Stable isotopes, deuterium excess (d), and fractionation factors (FF) in dairy cow fluids in Farm CR.

, 2015
s.e.m. = standard error of the meanValues within a row without a common letter differ for P < 0.05.Values in the same column with asterisk differ for P < 0.05 (*), P < 0.01 (**) or P < 0.001 (***).Stable isotopes, deuterium excess (d), and fractionation ...
Maurizio Capelletti (742951), Agostino Tonon (742954), Federica Camin (700006), Fabio Abeni (742950), Aldo Dal Prà (742952), Luana Bontempo (742953), Francesca Petrera (674959)   +6 more
core   +1 more source

Isotopic composition of precipitation at the station Portorož, Slovenia – period 2007–2010

Geologija, 2015
The stable isotopic composition of oxygen and hydrogen (δ18O and δ2H) and the tritium activity (A) were monitored in precipitation at synoptic station Portorož (Slovenia) during the period 2007–2010.
Polona Vreča, Ines Krajcar Bronić, Albrecht Leis   +2 more
doaj   +1 more source

Winter air temperature in the early and middle Holocene on the eastern coast of Daurkin Peninsula, Chukotka, reconstructed from stable isotopes of ice wedges

Лëд и снег, 2020
The object of research is the Holocene massive ice veins on the Eastern coast of the Daurkin Peninsula, the easternmost part of the Chukotka. Peat bogs with ice veins occur on the surface of marine terraces (near Uelen and Lorino settlements) and on ...
N. A. Budantseva, A. A. Maslakov, Yu. K. Vasil'chuk, A. V. Baranskaya, N. V. Belova, A. C. Vasil'chuk, F. A. Romanenko   +6 more
doaj   +1 more source

Deciphering Electrochemical Generation, Transport, and Reactivity of Hydrogen Species in the Electrochemical Palladium Membrane Reactor

Advanced Science, EarlyView.
This study elucidates hydrogen transport and reaction mechanisms in ePMR using 1‐hexyne hydrogenation as a model reaction. Hydrogen transport operates via dual pathways involving hydrogen atom permeation and H2‐mediated re‐dissociation on secondary metal layers.
Samuel J. Shin, Su Bin Roh, Hyun‐Tak Kim, Kwan‐Young Lee, Soo Min Kim, Ji Hoon Park, Minju Park   +6 more
wiley   +1 more source

Characterization of Liquid Scintillator-Based CNES for Deuterium–Deuterium Neutron Emission Spectroscopy in the LHD [PDF]

ORCID　0000-0002-0160-0468The compact neutron emission spectrometers (CNESs) based on conventional liquid (EJ-301) scintillation detectors were characterized in this work.
ZHONG, Guoqiang, POOLYARAT, Nopporn, KOBAYASHI, Makoto I., OSAKABE, Masaki, TAKADA, Eiji, SANGAROON, Siriyaporn, OGAWA, Kunihiro, MIWA, Misako, MATSUYAMA, Shigeo, ISOBE, Mitsutaka, WISITSORASAK, Apiwat, LIAO, Longyong, TOYAMA, Sho   +12 more
core   +1 more source

Heavy hydrogen in the stratosphere [PDF]

, 2003
We report measurements of the deuterium content of molecular hydrogen (H2) obtained from a suite of air samples that were collected during a stratospheric balloon flight between 12 and 33 km at 40º N in October 2002. Strong deuterium enrichments of up to
Rhee, T., Engel, A., Röckmann, Thomas, A. Engel, Rhee, T. S., Rhee, Tae Siek, T. Röckmann, T. S. Rhee, Engel, Andreas, Röckmann, T.   +9 more
core   +2 more sources

Multiscale Regulation of Ru‐Based Catalysts for Upgrading Biomass‐Derived Levulinic Acid and Levulinates to γ‐Valerolactone: Mechanisms, Advances, and Challenges

Advanced Science, EarlyView.
This review summarizes recent advances in the mechanistic, thermodynamic, and kinetic studies of biomass‐derived levulinic acid/levulinates conversion to γ‐valerolactone, along with the corresponding multiscale regulation strategies of Ru‐based catalysts.
Xin Ni, Cailu Xiao, Gongbing Zhou, Jingzi Zhang   +3 more
wiley   +1 more source

Performance and Environmental Impact of Flexible Temperature Sensors on Cellulose‐Based Substrate

Advanced Electronic Materials, EarlyView.
Toward low‐environmental‐impact approach to thin‐film sensors fabrication using natural ingredient‐based triacetyl cellulose (TAC) substrate. Temperature sensors are fabricated and characterized based on thermal and mechanical performance. Substrate recovery is demonstrated by facile dissolution of a Mo‐based sensor in deionized water.
Dianne C. Corsino, Diego Ferri, Claudio Bonizzoni, Marco Affronte, Shuvaraj Ghosh, Stefania Benedetti, Alberto Rota, Antonio Ballestrazzi, Luca Pasquali, Ahmed Rasheed, Luisa Petti, Hafiza Faiqa Maqsood, Niko Münzenrieder, Roberto Rosa, Giuseppe Cantarella   +14 more
wiley   +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

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