Results 141 to 150 of about 1,193,585 (233)

Synthesis and uranyl(VI) extraction performance of a calix[4]pyrrole–tetrahydroxamic acid receptor

Beilstein Journal of Organic Chemistry
The contamination of water by uranium poses a serious threat to ecosystems and human health, creating a need for efficient and selective remediation strategies.
Sara Karnib, Rana Baydoun, Wissam Zaidan, Nancy AlHaddad, Omar El Samad, Bilal Nsouli, Francine Cazier-Dennin, Pierre-Edouard Danjou   +7 more
doaj   +1 more source

Solvent Extraction of Uranium From Carbonate Solutions

, 1961
A process for recovering uranium from carbonate leach liquors by extraction with quaternary ammonium compounds was developed and evaluated in bench-scale continuous equipment with synthetic liquors.
Hurst, F. J., Crouse, D. J., Seeley, F. G.   +2 more
core   +1 more source

Hydrochem, an Integrated R Package for the Analysis and Visualization of Hydrochemical Data

Groundwater, EarlyView.
We present hydrochem, an open‐source R package that simplifies hydrochemical data analysis through reproducible workflows, automated calculations, and advanced visualization tools. It enables flexible and reliable interpretation of complex water chemistry datasets, supporting researchers and practitioners in groundwater quality assessment and resource ...
Guillaume Cinkus, Raphaël Bondu
wiley   +1 more source

Solvent Extraction of Uranium Using Alkylamines

Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, 1963
The new conversion refining process using high molecular weight alkylamines was developed in order to obtain directly highly purified UF4 or UO3 from ore leaching solution without the precipitation process of yellow cake. Suitable conditions for each of the extraction, conversion and stripping process were described, and also the flow diagram of this ...
openaire   +2 more sources

The Origins of Ploem's Filter Cube: A Pandora's Box

Journal of Microscopy, EarlyView.
Abstract Ploem's filter cube, central to modern epifluorescence microscopy, integrates three matched optical components: an excitation filter, an emission filter, and a dichroic mirror. Together, these elements enable the separation of excitation and emission light paths, producing high‐contrast fluorescence images.
Jack Gordon, Kaleah Balcomb, Vinod Maseedupally, Maitreyee Roy   +3 more
wiley   +1 more source

Sequencing of the rus gene before and after the mutation with DES in the bacterial Acidithiobacillus sp. FJ2

یافته‌های نوین در علوم زیستی, 2019
In Acidithiobacillus ferrooxidans, the proteins present in the electron transfer pathway cause ferrous iron oxidation which leads to uranium extraction. The relationship between gene sequence and uranium extraction has not been investigated yet. Based on
Somayeh Farahmand, Faezeh Fatemi, Reza Hajihosseini   +2 more
doaj  

Purification of Uranium From Uranium/Molybdenum Alloy [PDF]

, 2007
The Savannah River Site will recycle a nuclear fuel comprised of 90% uranium-10% molybdenum by weight. The process flowsheet calls for dissolution of the material in nitric acid to a uranium concentration of 15-20 g/L without the formation of ...
Visser, Ann, Laurinat, James, Pierce, R.
core  

Nationalism and Education in the Arctic: A Study of Greenland in the Context of the Kingdom of Denmark

Nations and Nationalism, EarlyView.
ABSTRACT This article analyses the coconstitution of nationalism and education in Greenland (Kalaallit Nunaat) within the Kingdom of Denmark. Drawing on Ernest Gellner, Benedict Anderson, Michael Billig and Siniša Malešević, it argues that schooling standardises language, history and civic repertoires, thereby fabricating the modern national subject ...
Benedikte Brincker, Mitdlarak Lennert
wiley   +1 more source

Method of Uranium Extraction from Underground Uranium-Containing Water [PDF]

, 2019
FIELD: chemistry. SUBSTANCE: invention relates to uranium, particularly, uranium extraction from underground uranium-containing water. Method comprises dynamic sorption of uranium on a granulated sorbent containing phosphogypsum and schungite ...
Samojlov, V. I., Kulenova, N. A., Зяпаева, Т. А., Самойлов, В. И., Садуакасова, А. Т., Saduakasova, A. T., Дрючкова, О. А., Adylkanova, M. A., Kokaeva, G. A., Куленова, Н. А., Zyapaeva, T. A., Адылканова, М. А., Зеленин, В. И., Dryuchkova, O. A., Кокаева, Г. А., Abdulina, S. A., Zelenin, V. I., Абдулина, С. А.   +17 more
core  

Credibility–Constraint Decoupling and South Korea's Nuclear Option: Explaining Salience and Policy Conversion

Pacific Focus, EarlyView.
ABSTRACT South Korea presents a puzzle for threat‐centered accounts of allied nuclear politics. Why did South Korea advance into covert state‐directed exploration of a nuclear weapons option before North Korea possessed nuclear weapons, yet refrain from renewed state‐directed pursuit after North Korea built a substantial nuclear arsenal and posed a ...
Inseok Yoo
wiley   +1 more source