Results 41 to 50 of about 696,435 (176)

Research progress and development trends in the anti-oxidation mechanism and performance enhancement of uranium nitride as an accident-resistant nuclear fuel

open access: yes工程科学学报
The Fukushima accident in 2011 prompted significant efforts to develop accident-tolerant fuel (ATF). The U.S. Department of Energy defines ATF as a fuel that can withstand a longer reactor core cooling loss time than the standard fuel system (UO2–Zr) in ...
Yu ZHANG   +9 more
doaj   +1 more source

MXene‐Induced Selective Ion Separation in Capacitive Deionization: Bridging Fundamentals With Frontier Innovations

open access: yesElectron, EarlyView.
This review presents an in‐depth analysis of employing the MXenes electrodes in advancing ion‐selective capacitive deionization technologies, by exploring various strategies to achieve the desired selectivity. It highlights the critical challenges that hinder scalability and practical implementation. The review showcases the future opportunities toward
Rahat Alam   +3 more
wiley   +1 more source

Crystal structure of [UO2(NH3)5]NO3·NH3

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
Pentaammine dioxide uranium(V) nitrate ammonia (1/1), [UO2(NH3)5]NO3·NH3, was obtained in the form of yellow crystals from the reaction of caesium uranyl nitrate, Cs[UO2(NO3)3], and uranium tetrafluoride, UF4, in dry liquid ammonia.
Patrick Woidy, Florian Kraus
doaj   +1 more source

Soil Contamination Around the Copper Smelter and the Use of Soil Microarthropods as Bioindicators

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Soil contamination from smelter emissions, including heavy metals (HM), rare earth elements (REEs), and sulfur, poses a significant threat to soil ecosystems. In the immediate vicinity of the Głogów Copper Smelter, HM concentrations were several times higher than in more distant forest stands.
Jacek Malica   +10 more
wiley   +1 more source

Sintering of Industrial Uranium Dioxide Pellets Using Microwave Radiation for Nuclear Fuel Fabrication

open access: yesEnergies, 2022
In this study, the possibility of sintering industrial pressed uranium dioxide pellets using microwave radiation for the production of nuclear fuel is shown.
Konstantin S. Pilyushenko   +7 more
doaj   +1 more source

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

open access: yesSedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault   +5 more
wiley   +1 more source

Complexity of Uranyl Peroxide Cluster Speciation from Alkali-Directed Oxidative Dissolution of Uranium Dioxide.

open access: yesInorganic Chemistry, 2018
Solid UO2 dissolution and uranium speciation in aqueous solutions that promote formation of uranyl peroxide macroanions was examined, with a focus on the role of alkali metals. UO2 powders were dissolved in solutions containing XOH (X = Li, Na, K) and 30%
Sarah Hickam   +6 more
semanticscholar   +1 more source

Comparative Analysis of Uranium Content and 235U Abundance in Uranium Dioxide Pellets

open access: yesHe huaxue yu fangshe huaxue
Non-destructive analysis(NDA) techniques can be used to ensure that no sensitive nuclear materials(SNM) are being lost or diverted from their defined flows and containments.
Sheng-kai XIE   +8 more
doaj   +1 more source

In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour

open access: yesScientific Reports, 2017
Uranium encapsulated in grout was exposed to water vapour for extended periods of time. Through synchrotron x-ray powder diffraction and tomography measurements, uranium dioxide was determined the dominant corrosion product over a 50-week time period ...
C. A. Stitt   +7 more
doaj   +1 more source

OBTAINING HYDROGEN FLUORIDE FROM URANIUM HEXAFLUORIDE IN COMBUSTION MODE

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020
Uranium hexafluoride, depleted in the isotope U-235 (DUHF), is a by-product of the isotopic enrichment of uranium in the nuclear fuel cycle, which is sent for long-term storage. Currently, there are no effective industrial technologies allowing to return
Pashkevich Dmitrii   +8 more
doaj   +1 more source

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