Results 41 to 50 of about 18,326 (167)

C−H Functionalisation for Hydrogen Isotope Exchange [PDF]

Angewandte Chemie International Edition, 2018
AbstractThe various applications of hydrogen isotopes (deuterium, D, and tritium, T) in the physical and life sciences demand a range of methods for their installation in an array of molecular architectures. In this Review, we describe recent advances in synthetic C−H functionalisation for hydrogen isotope exchange.
Jens Atzrodt, Volker Derdau, William J. Kerr, Marc Reid   +3 more
openaire   +3 more sources

Diffusion of Hydrogen Isotopes in Zirconium Alloys

He huaxue yu fangshe huaxue
Tritium is a common radioactive product in nuclear power plants. It is easy to diffuse, penetrate and be easily absorbed by organisms due to its small atomic radius.
Long WANG, Zhi-hao HONG, You-zhi WANG, Zi-kai LIU, Xiao-qian ZHANG, Tian-guang ZHANG, Long ZHANG   +6 more
doaj   +1 more source

Prolonged drought on Rapa Nui during the decline of megalithic monument construction

Communications Earth & Environment
Beginning in the 13th century, Polynesian settlers on the island of Rapa Nui engaged in megalithic monument construction, crafting hundreds of ahu platforms and moai statues from volcanic bedrock. The decline of this tradition centuries later, coincident
Redmond Stein, Lorelei Curtin, Nicholas L. Balascio, Raymond S. Bradley, Dorothy M. Peteet, Rafael Rapu, Valentí Rull, Andrea Seelenfreund, William J. D’Andrea   +8 more
doaj   +1 more source

Finite element analysis of hydrogen retention in ITER plasma facing components using FESTIM

Nuclear Materials and Energy, 2019
The behaviour of hydrogen isotopes in ITER monoblocks was studied using the code FESTIM (Finite Element Simulation of Tritium In Materials) which is introduced in this publication. FESTIM has been validated by reproducing experimental data and the Method
Rémi Delaporte-Mathurin, Etienne A. Hodille, Jonathan Mougenot, Yann Charles, Christian Grisolia   +4 more
doaj   +1 more source

Trapping and de-trapping behavior of hydrogen isotopes in <100> interstitial dislocation loops of tungsten

Nuclear Fusion
In fusion reactors, plasma-facing materials (PFMs) work under a complex irradiation environment. A lot of irradiation defects will be generated in tungsten (W), primary candidate for PFMs, leading to a substantial amount of hydrogen fuel retention. Among
Fei Sun, Qihang Liu, Baichuan Xu, Xiao-Chun Li, Jipeng Zhu, Dahuan Zhu, Hai-Shan Zhou, Hongxiang Zong, Lai-Ma Luo, Yasuhisa Oya, Yucheng Wu   +10 more
doaj   +1 more source

Effect of microstructure and neutron irradiation defects on deuterium retention in SiC

Frontiers in Nuclear Engineering
Retention of hydrogen isotopes is a critical concern for operating fusion reactors as retained tritium both activates components and removes scarce fuel from the fuel cycle.
Alex Leide, Weicheng Zhong, Isabel Fernandez-Victorio, Isabel Fernandez-Victorio, Duc Nguyen-Manh, Duc Nguyen-Manh, Takaaki Koyanagi   +6 more
doaj   +1 more source

Influence of mineral adsorbent on efficiency of fractionation of heavy hydrogen isotopes in aqueous solutions

Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Formulation of the problem. Solving the problem of separation of heavy hydrogen isotopes in aqueous solutions is important for the purification of process waters from the tritium formed in them at the enterprises of the fuel and energy complex.
Олександр Пушкарьов, Ірина Севрук, Юрій Деміхов, Олександр Зубко, Віталій Долін, Іван Шраменко   +5 more
doaj   +1 more source

Review of Water Hydrogen Isotope Separation Technology

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Hydrogen isotopes, such as protium(H), deuterium(D), and tritium(T), are widely used in medical treatment, nuclear energy, national defense, and other fields.
SHI Zhang-hong, ZHAO Qing-kai, CHEN Chang-an   +2 more
doaj   +1 more source

Novel Calibration Approach for Monitoring Aerosol Hydrogen Isotopes Using Laser-Induced Breakdown Spectroscopy for Molten Salt Reactor Off-Gas Streams. [PDF]

Sensors (Basel), 2023
Andrews HB, McFarlane J.
europepmc   +1 more source

Dynamic modelling of local fuel inventory and desorption in the whole tokamak vacuum vessel for auto-consistent plasma-wall interaction simulations

Nuclear Materials and Energy, 2019
An extension of the SolEdge2D-EIRENE code package, named D-WEE, has been developed to add the dynamics of thermal desorption of hydrogen isotopes from the surface of plasma facing materials.
J. Denis, J. Bucalossi, G. Ciraolo, E.A. Hodille, B. Pégourié, H. Bufferand, C. Grisolia, T. Loarer, Y. Marandet, E. Serre   +9 more
doaj   +1 more source