hydrogen isotope
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Talanta ◽  
2022 ◽  
Vol 239 ◽  
pp. 123133
Lan-tian Xing ◽  
Zhong-ping Li ◽  
Li Xu ◽  
Li-wu Li ◽  
Yan Liu

2022 ◽  
Vol 41 ◽  
pp. 103261
Tito Arosio ◽  
Kurt Nicolussi ◽  
Monika Oberhänsli ◽  
Markus Leuenberger

2022 ◽  
Vol 579 ◽  
pp. 117338
Andrea Ricci ◽  
Barbara I. Kleine ◽  
Jens Fiebig ◽  
Jóhann Gunnarsson-Robin ◽  
Kennedy Mativo Kamunya ◽  

2022 ◽  
Vol 3 (1) ◽  
Bernhard Aichner ◽  
Bernd Wünnemann ◽  
Alice Callegaro ◽  
Marcel T. J. van der Meer ◽  
Dada Yan ◽  

AbstractHigh-altitude ecosystems react sensitively to hydroclimatic triggers. Here we evaluated the ecological and hydrological changes in a glacier-influenced lake (Hala Hu, China) since the last glacial. Rapid fluctuations of aquatic biomarker concentrations, ratios, and hydrogen isotope values, from 15 to 14,000 and 8 to 5000 years before present, provided evidence for aquatic regime shifts and changes in lake hydrology. In contrast, most negative hydrogen isotope values of terrestrial biomarkers were observed between 9 and 7,000 years before present. This shows that shifts of vapour sources and increased precipitation amounts were not relevant drivers behind ecosystem changes in the studied lake. Instead, receding glaciers and increased meltwater discharge, driven by higher temperatures, caused the pronounced ecological responses. The shifts within phytoplankton communities in the Late Glacial and mid Holocene illustrate the vulnerability of comparable ecosystems to climatic and hydrological changes. This is relevant to assess future ecological responses to global warming.

2022 ◽  
Vol 216 ◽  
pp. 106338
Nadine J. Kanik ◽  
Fred J. Longstaffe ◽  
Artur Kuligiewicz ◽  
Arkadiusz Derkowski

2022 ◽  
pp. 127416
Fernando Gázquez ◽  
Luis Quindós ◽  
Daniel Rábago ◽  
Ismael Fuente ◽  
Santiago Celaya ◽  

2021 ◽  
Anze Zaloznik ◽  
Matthew J Baldwin ◽  
Russell P Doerner ◽  
Gregory de Temmerman ◽  
Richard A Pitts

Abstract Hydrogen isotope co-deposition with Be eroded from the first wall is expected to be the main fusion fuel retention mechanism in ITER. Since good fuel accounting is crucial for economic and safety reasons, reliable predictions of hydrogen isotope retention are needed. This study builds upon the well-established empirical De Temmerman scaling law [1] that predicts D/Be ratios in co-deposited layers based on deposition temperature, deposition rate, and deuterium particle energy. Expanding the data used in the original development of the scaling law with an additional dataset obtained with more recent measurements using a different technique to the original De Temmerman approach, allows us to obtain new values for free parameters and improve the prediction capabilities of the new scaling law. In an effort to improve the model even further, scaling with D2 background pressure was included and a new two-term model derived, describing D retention in low- and high-energy traps separately.

ACS Catalysis ◽  
2021 ◽  
pp. 783-788
Lanlan Wang ◽  
Yujiao Lou ◽  
Weihua Xu ◽  
Zhichun Chen ◽  
Jian Xu ◽  

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