Results 11 to 20 of about 2,765 (199)

Assessing the Effect of Large Igneous Provinces on Global Oceanic Redox Conditions Using Non‐traditional Metal Isotopes (Molybdenum, Uranium, Thallium)

open access: yesGeophysical Monograph Series, Page 305-323., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Brian Kendall   +2 more
wiley  

+6 more sources

Studies on uranium recovery from a U-bearing Radoniów Dump

open access: yesNukleonika, 2021
This work reports the possibility of uranium recovery from a post-mining uranium ore dump in Poland by a bioleaching method. The studies were conducted on the dump leaching model with the mass of 570 kg of uranium bearing mineral material from Radoniów ...
Kiegiel Katarzyna   +5 more
doaj   +1 more source

Uranium-Doped Zinc, Copper, and Nickel Oxides for Enhanced Catalytic Conversion of Furfural to Furfuryl Alcohol: A Relativistic DFT Study

open access: yesMolecules, 2022
Transition metal oxides (TMOs) and actinide ones (AnOs) have been widely applied in catalytic reactions due to their excellent physicochemical properties.
Shuang Li   +3 more
doaj   +1 more source

XPS determination of the uranium valences in U3O8

open access: yesNuclear Analysis, 2023
Uranium oxides are tightly related to the whole nuclear fuel cycle in the nuclear industry. However, the understanding of the chemical states in mixed valence uranium oxides remains scattered and deserves more exploration.
Ping Li   +6 more
doaj   +1 more source

Phase composition of brown ceramics of lava-like fuel-containing materials of the object “Shelter” ChNPP

open access: yesЯдерна фізика та енергетика, 2019
Using the X-ray diffraction method, the phase content of brown ceramics of lava-like fuel-containing materials of the “New Safe Confinement – Shelter Object” Complex was investigated.
S. V. Gabielkov   +6 more
doaj   +1 more source

Cathodoluminescence of uranium oxides [PDF]

open access: yesJournal of Luminescence, 1984
The cathodoluminescence of uranium oxide surfaces prepared in-situ from clean uranium exposed to dry oxygen was studied. The broad asymmetric peak observed at 470 nm is attributed to F-center excitation.
Winer, K., Colmenares, C., Wooten, F.
openaire   +1 more source

Investigation on Chlorination of Uranium Oxides With CCl4 and HCl Gas

open access: yesHe huaxue yu fangshe huaxue, 2022
In this study, the chlorination mechanism and influencing factors of uranium oxides(mainly U3O8) were studied by using CCl4 and HCl gas as chlorination reagents respectively. The chlorination of U3O8 powder was studied with CCl4 as chlorination reagent.
MENG Zhao-kai   +7 more
doaj   +1 more source

Application of μ-XRF in Uranium Mineralogy of the Huanglongpu Carbonate-type Molybdenum Deposit, Shaanxi Province, China

open access: yesYankuang ceshi, 2022
BACKGROUND The carbonatite-type molybdenum metallogenic belt in East Qinling is the largest molybdenum metallogenic belt in the world. The Huanglongpu deposit is one of the earliest discovered carbonatite-type molybdenum deposits in China.
ZHANG Yi-yang   +7 more
doaj   +1 more source

Determination of inorganic compounds in drinking water on the basis of household water heater scale [PDF]

open access: yesActa Periodica Technologica, 2005
The concept of fractional extraction from sediment — in our analyses it is scale, is based on the assumption that uranium with a solid substance conform bonds of different strength and that these bonds can be gradually fractionated by the action of ...
Rajković Miloš B.   +3 more
doaj   +1 more source

URANIUM-TITANIUM-METAGEL MINERALIZATION OF AU-U DEPOSITS OF THE ELKON ORE DISTRICT (ALDAN, RUSSIA) AND FEATURES OF ITS PROCESSING

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2016
Large-scale reserves of uranium in Au-U deposits of the Elkon ore district are composed of newly discovered polyphase uranium-titanium metagel (UTM). Before, it was assumed that brannerite is the major mineral of these ores. However, it has been revealed
A. P. Aleshin   +6 more
doaj   +1 more source

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