Showing 1 - 20 results of 21 for search '"Uranium"', query time: 0.05s Refine Results
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    Mackinawite partial oxidation to green rust produces a large, abiotic uranium isotope fractionation by Romain Guilbaud, Morten B. Andersen, Helen M. Freeman, Jeffrey Paulo H. Perez, David Uhlig, Liane G. Benning

    Published 2025-02-01
    “…Accurate reconstructions of oxygen levels in such conditions are therefore required, but current geochemical proxies fail in identifying transitional redox conditions. Uranium isotopes are an emerging palaeoredox proxy, as large isotope fractionations are recorded during the reduction of uranium into anoxic sediments. …”
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    Uranium(VI)/Plutonium(IV) Separation from Spent MOX Fuels Using a Single Monoamide Extractant: The PUMAS Process by Michaud Solenne, Duterme Amandine, Costenoble Sylvain, Lengrand Fabien, Vanel Vincent, Moeyaert Pauline, Sarrat Pierre, Sorel Christian, Miguirditchian Manuel

    Published 2025-01-01
    “…This paper sum up the methodology and the different hot tests performed in Atalante facility to demonstrate uranium(VI)/plutonium(IV) separation from used MOX fuels using this single monoamide extractant with the so-called PUMAS process.…”
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    Modeling Radionuclide Transfer from Pasture to Milk in Kisoro, South- Western Uganda by Habakwiha V, Oruru B, Tumps Ireeta W

    Published 2023
    “…The ingestion transfer rates of uranium varied from 3.1 10-6 to 7.6 10-6 y l-1 while for thorium, the ingestion transfer rates varied from 2.2 10-6 to 7.5 10-6 y l-1. …”
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    Assessment of contamination of natural waters with radionuclides and heavy metals the case of Karabulak creek at the Semipalatinsk Test Site. by Madina Dyussembayeva, Almira Aidarkhanova, Azhar Tashekova, Yerbol Shakenov, Vladimir Kolbin, Alyona Merkel, Fail Zhamaldinov, Natalya Larionova, Igor Gorlachev, Pavel Kharkin, Sergey Lukashenko, Yelena Yevlampiyeva

    Published 2025-01-01
    “…This paper presents research data on water contamination levels of artificial radionuclides and heavy metals in Karabulak Creek at the Semipalatinsk Test Site. The uranium isotopic composition has been studied (235U and 238U). …”
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    A SEQUENCE OF FORMATION OF «URANPYROCHLORE» AND FLUOROCALCIOPYROCHLORE IN ALKALI PEGMATITES FROM THE VISHNEVYE MOUNTAINS, SOUTH URALS by V.I. Popova, V.A. Popov, I.A. Blinov, V.A. Kotlyarov, S.M. Lebedeva

    Published 2022-06-01
    “…Dolgaya (Vishnevye Mountains, South Urals): altered yellowish green «uranium pyrochlore» with a UO3 content of 7.62–42.44 wt. % in different parts of the crystal, as well as fluorocalciopyrochlore, fersmite, and associated minerals. …”
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    Population Balance Solution Using Fixed Point Convergence Acceleration for Steady-State Reactor Networks by Vasquez Cristian Camilo Ruiz, Lebaz Noureddine, Ramière Isabelle, Bertrand Murielle, Mangin Denis

    Published 2025-01-01
    “…As a case study, the numerical method is performed on the uranium oxalic precipitation. Thanks to this approach, local values of crystallisation kinetics, mass transfer and crystal size distribution are obtained. …”
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    Measurements of stable ruthenium fission products in nuclear reactor fuel samples by Genna M. Patton, Zachary A. Torrano, Amanda Salazar, Jeffrey Miller, Matthew E. Sanborn, Susan K. Hanson

    Published 2025-02-01
    “…In this study, ruthenium (Ru), uranium (U), and plutonium (Pu) isotope ratios and concentrations were measured in six different samples taken along a single nuclear fuel rod from a pressurized water reactor (PWR). …”
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    Actinide Oxide Dissolution in Tributyl Phosphate by Gogolski Jarrod, Goetzman Chelsea, Mills Matthew, Nguyen Vinh, Rudisill Tracy, Lascola Robert

    Published 2025-01-01
    “…The organic solution then goes through a solvent extraction process to recover the uranium and/or other desired radionuclides. This work qualitatively studied the dissolution of actinide oxides (UO2, NpO2, and PuO2) in tributyl phosphate using UV-Vis-NIR absorbance spectroscopy to ascertain dissolution behavior. …”
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    USING COAL AS A PRESSURE INSTRUMENT OR ENERGY WEAPON by Teodora LAZAR, Mila Ilieva OBRETENOVA, Marius Daniel MARCU, Adina TATAR, Nicolae Daniel FITA, Dragos PASCULESCU

    Published 2022-12-01
    “…The emergence of energy dynamism around the world manifested by the lack of finite primary energy resources (oil, natural gas, coal and uranium) and/or electricity to final consumers and the wish of the world's major energy powers to own and control the entire world energy chain for the purpose of using primary energy resources or electricity as a possible energy weapon or pressure instrument in the context of blackmail and profitability, it makes this paper of great importance and relevance, especially in the new context of military instability on the background and due to energy causes. …”
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    Energy Economics : Theory and Applications / by Zweifel, Peter, Erdmann, Georg, Praktiknjo, Aaron

    Published 2017
    Table of Contents: “…Preface -- Introduction -- Energy in Science and Engineering -- Investment and Profitability Calculation -- Bottom-Up Analysis of Energy Demand -- Top-Down Analysis of Energy Demand -- Energy Reserves and Sustainability -- External Costs -- Markets for Liquid Fuels -- Markets for Gaseous Fuels -- Markets for Solid Fuels and CO2 Emissions -- Uranium and Nuclear Energy -- Markets for Electricity -- Economics of Electrical Grids.…”
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    THE ECONOMIC INFLUENCE OF FRANCE IN WEST AND CENTRAL AFRICA by Juraj Ondriaš, Mykola Palinchak, Kateryna Brenzovych

    Published 2024-12-01
    “…The paper begins by examining the long-term impact of France on the extraction of two key commodities, oil and uranium, on the African continent. This is primarily accomplished through French multinational corporations, which have historical ties to the French government and which exert dominant control over the extraction of the aforementioned mineral resources in the countries under examination. …”
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    Sub-technology market share strongly affects critical material constraints in power system transitions by Huijuan Dong, Tianyu Zhang, Yong Geng, Peng Wang, Shu Zhang, Joseph Sarkis

    Published 2025-02-01
    “…Material constraints are likely to occur for gallium, terbium, germanium, tellurium, indium, uranium and copper. The importance value is determined by the ratio of power sector to all-sector material demand; the importance value of gallium will increase to 50% due to increases in gallium arsenide and permanent magnet sub-technologies. …”
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    Biological effectiveness of combined exposure to neutrons and gamma radiation applied in two orders of sequence: Relevance for biological dosimetry after nuclear emergencies by Tomas Palmqvist, Milagrosa Lopez-Riego, Martin Bucher, Ursula Oestreicher, Stefan Pojtinger, Ulrich Giesen, Iuliana Toma-Dasu, Andrzej Wojcik

    Published 2025-02-01
    “…Methods: Whole blood from 3 human donors was exposed to neutrons with an energy spectrum similar to that of the Hiroshima uranium bomb, to gamma radiation from a 60Co source and to a 50:50 combination of both radiations, given in two orders of sequence. …”
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