Results 1 to 10 of about 3,834 (115)

Verification and validation of isotope inventory prediction for back-end cycle management using two-step method

Nuclear Engineering and Technology, 2021
This paper presents the verification and validation (V&V) of a calculation module for isotope inventory prediction to control the back-end cycle of spent nuclear fuel (SNF).
Jaerim Jang, Bamidele Ebiwonjumi, Wonkyeong Kim, Alexey Cherezov, Jinsu Park, Deokjung Lee   +5 more
doaj   +3 more sources

Provenance and distribution of zinc in terrestrial planets [PDF]

Scientific Reports
The nucleosynthetic Zn isotope compositions of planetary materials shed light on the sources of Zn and other similarly volatile elements during terrestrial planet formation.
Rayssa Martins, Elin M. Morton, Yihang Huang, Helen M. Williams, Mark Rehkämper   +4 more
doaj   +2 more sources

Historical (1850–2010) mercury stable isotope inventory from anthropogenic sources to the atmosphere

Elementa: Science of the Anthropocene, 2016
Mercury (Hg) stable isotopes provide a new tool to trace the biogeochemical cycle of Hg. An inventory of the isotopic composition of historical anthropogenic Hg emissions is important to understand sources and post-emission transformations of Hg.
Ruoyu Sun, David G. Streets, Hannah M. Horowitz, Helen M. Amos, Guijian Liu, Vincent Perrot, Jean-Paul Toutain, Holger Hintelmann, Elsie M. Sunderland, Jeroen E. Sonke   +9 more
doaj   +3 more sources

VERIFICATION AND VALIDATION OF BACK-END CYCLE SOURCE TERM CALCULATION OF THE NODAL CODE RAST-K [PDF]

EPJ Web of Conferences, 2021
Verification and validation (V&V) results of source term calculation capability implemented in the nodal diffusion code RAST-K are presented in this paper.
Jang Jaerim, Ebiwonjumi Bamidele, Kim Wonkyeong, Park Jinsu, Lee Deokjung   +4 more
doaj   +1 more source

Production and separation of 163Ho for nuclear physics experiments. [PDF]

PLoS ONE, 2018
This paper describes the production and chemical separation of the 163Ho isotope that will be used in several nuclear physics experiments aiming at measuring the neutrino mass as well as the neutron cross section of the 163Ho isotope.
S Heinitz, N Kivel, D Schumann, U Köster, M Balata, M Biasotti, V Ceriale, M De Gerone, M Faverzani, E Ferri, G Gallucci, F Gatti, A Giachero, S Nisi, A Nucciotti, A Orlando, G Pessina, A Puiu, S Ragazzi   +18 more
doaj   +1 more source

In situ observations of the isotopic composition of methane at the Cabauw tall tower site [PDF]

Atmospheric Chemistry and Physics, 2016
High-precision analyses of the isotopic composition of methane in ambient air can potentially be used to discriminate between different source categories. Due to the complexity of isotope ratio measurements, such analyses have generally been performed
T. Röckmann, T. Röckmann, S. Eyer, S. Eyer, C. van der Veen, M. E. Popa, B. Tuzson, G. Monteil, G. Monteil, S. Houweling, E. Harris, D. Brunner, H. Fischer, G. Zazzeri, D. Lowry, E. G. Nisbet, W. A. Brand, J. M. Necki, L. Emmenegger, J. Mohn   +19 more
doaj   +1 more source

Validation of spent nuclear fuel decay heat calculation by a two-step method

Nuclear Engineering and Technology, 2021
In this paper, we validate the decay heat calculation capability via a two-step method to analyze spent nuclear fuel (SNF) discharged from pressurized water reactors (PWRs).
Jaerim Jang, Bamidele Ebiwonjumi, Wonkyeong Kim, Jinsu Park, Jiwon Choe, Deokjung Lee   +5 more
doaj   +1 more source

Uncertainties of fluxes and ¹³C  ∕ ¹²C ratios of atmospheric reactive-gas emissions [PDF]

Atmospheric Chemistry and Physics, 2017
We provide a comprehensive review of the proxy data on the 13C ∕ 12C ratios and uncertainties of emissions of reactive carbonaceous compounds into the atmosphere, with a focus on CO sources.
S. Gromov, S. Gromov, C. A. M. Brenninkmeijer, P. Jöckel   +3 more
doaj   +1 more source

Low terrestrial carbon storage at the Last Glacial Maximum: constraints from multi-proxy data [PDF]

Climate of the Past, 2019
Past changes in the inventory of carbon stored in vegetation and soils remain uncertain. Earlier studies inferred the increase in the land carbon inventory (Δland) between the Last Glacial Maximum (LGM) and the preindustrial period (PI) based on marine ...
A. Jeltsch-Thömmes, A. Jeltsch-Thömmes, G. Battaglia, G. Battaglia, O. Cartapanis, O. Cartapanis, S. L. Jaccard, S. L. Jaccard, F. Joos, F. Joos   +9 more
doaj   +1 more source

Numerical simulation of hydrogen isotope bubbles evolution and their effect on fuel retention in tungsten

Nuclear Materials and Energy, 2022
The 2D Hydrogen Isotope Inventory Process code with Monte Carlo bubble growth model (HIIPC2D-MC) has been upgraded by adding surface retention and self-clustering bubble nucleation to study the evolution of hydrogen isotope (HI) bubble and its impact on ...
Yuting Wang, Chaofeng Sang, Zhenhou Wang, Dezhen Wang   +3 more
doaj   +1 more source