Results 11 to 20 of about 99,879 (261)
Reactions between the highly strained uranacycle I with various boranes afford unprecedented uranium complexes bearing either a pendant borate or a pendant borane Lewis acid. The latter promotes the 1,2‐insertion of CO into a UIV‐N bond. Abstract In this contribution, we illustrate uranium complexes bearing a pendant borate (i.e.
Wei Su+4 more
wiley +2 more sources
Performance improvement of gamma ray spectrum logging tool based on LaBr3(Ce) scintillation crystals
BackgroundThe main ore-bearing rock of the Husab Uranium Mine in Namibia, southern Africa, is white granite, and the radioactive element thorium content in the ore is high, which has a greater impact on the γ ray logging results.PurposeThis study aims to
HAO Jinlong+3 more
doaj +1 more source
About chemical form and binding energy of 14C in irradiated graphite of uranium-graphite nuclear reactors [PDF]
Issues associated with handling irradiated graphite of uranium-graphite nuclear reactors are examined. It is demonstrated that selection of approaches, methods and means for handling irradiated graphite are determined by the form of occurrence and ...
Evgeny V. Bespala+3 more
doaj +3 more sources
BACKGROUND The oxygen isotopic composition of sulfate radical in mineral or water can be used to identify the source and transformation process. At present, the common method is to convert sulfate radical into barium sulfate and the oxygen isotopic ...
JIN Gui-shan+6 more
doaj +1 more source
The primary exploration objective of Qiharigetu Sandstone-type Uranium (SU) deposit in the Erenhot Basin of China is to understand the stratigraphy, lithology and fault distribution of the target layer.
Qubo Wu, Yucheng Huang
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Parallel groundwater flow simulation method based on a discrete fracture network model
Objective Groundwater flow in fractured rocks has strong heterogeneity and anisotropy. The discrete fracture network (DFN) method has been internationally considered as one of the most reasonable and effective methods to describe the fracture water ...
Jingbo Zhao+5 more
doaj +1 more source
Design and validation of the THMC China-Mock-Up test on buffer material for HLW disposal
According to the preliminary concept of the high-level radioactive waste (HLW) repository in China, a large-scale mock-up facility, named China-Mock-Up was constructed in the laboratory of Beijing Research Institute of Uranium Geology (BRIUG).
Yuemiao Liu+7 more
doaj +1 more source
Potential of application of IRT-T research reactor as the solution of the problem of graphite radwaste disposal [PDF]
Aspects of handling irradiated graphite during decommissioning uranium-graphite reactors (UGR) of different types were investigated. It was demonstrated that handling reactor graphite is complicated by the presence in the composition of graphite of long ...
Alexander Pavliuk+3 more
doaj +3 more sources
BACKGROUND Reagent purification, sample pretreatment, environmental humidity, reactor cleanliness and experimental quality control are the main influence factors for determination of oxygen isotopic composition of silicates and oxide minerals by BrF5 ...
ZHANG Jian-feng+8 more
doaj +1 more source
CO2-Driven Hydraulic Fracturing Trajectories across a Preexisting Fracture
Defining the trajectory of hydraulic fractures crossing bedding planes and other fractures is a significant issue in determining the effectiveness of the stimulation. In this work, a damage evolution law is used to describe the initiation and propagation
Qi Zhang+6 more
doaj +1 more source