Results 41 to 50 of about 3,224 (202)

Cesium separation from radioactive waste by extraction and adsorption based on crown ethers and calixarenes

Nuclear Engineering and Technology, 2020
Cesium is a major product of uranium fission, which is the most commonly existed radionuclide in radioactive wastes. Various technologies have been applied to separate radioactive cesium from radioactive wastes, such as chemical precipitation, solvent ...
Jianlong Wang, Shuting Zhuang
doaj   +1 more source

Carbon‐14 Perovskite Betavoltaics Reach Record 10.79% Efficiency

Carbon Energy, EarlyView.
A perovskite‐based betavoltaic cell incorporating carbon‐14 nanoparticles and formamidinium lead iodide achieves a record energy conversion efficiency of 10.79%. The device design enhances charge generation through an electron avalanche multiplication mechanism.
Hong Soo Kim, Ryan Rhee, Junho Lee, Muhammad Bilal Naseem, Jung Hwan Lee, Jong Hyeok Park, Su‐Il In   +6 more
wiley   +1 more source

Variable Temperature Studies of Two Calcium Uranates α‐Ca3UO6 and Ca2UO5

Chemistry – A European Journal, EarlyView.
The structures and thermal responses of the calcium uranates α‐Ca3UO6 and Ca2UO5 were investigated using in situ synchrotron x‐ray diffraction and neutron powder diffraction. Despite the very similar chemical compositions, the structural response of the two calcium uranates is shown to be complex and varied.
Maria K. Nicholas, Timothy A. Ablott, Caleb J. Bennett, Bryce G. Mullens, Helen E. Maynard‐Casely, Wen Liang Tan, Jeremy L. Wykes, Yingjie Zhang, Brendan J. Kennedy   +8 more
wiley   +1 more source

Biodegradation of the alkaline cellulose degradation products generated during radioactive waste disposal.

PLoS ONE, 2014
The anoxic, alkaline hydrolysis of cellulosic materials generates a range of cellulose degradation products (CDP) including α and β forms of isosaccharinic acid (ISA) and is expected to occur in radioactive waste disposal sites receiving intermediate ...
Simon P Rout, Jessica Radford, Andrew P Laws, Francis Sweeney, Ahmed Elmekawy, Lisa J Gillie, Paul N Humphreys   +6 more
doaj   +1 more source

Advances in Human Mass Balance Studies: An IQ Consortium Perspective on Current Practices and Emerging Trends

Clinical Pharmacology &Therapeutics, EarlyView.
Human radiolabeled mass balance studies are crucial for comprehensively characterizing the absorption, distribution, metabolism, and excretion (ADME) of investigational drugs, providing essential data for drug development, regulatory evaluation, and product labeling.
Jason Boer, Ellen Cannady, Filip Cuyckens, Ulrike Glaenzel, Camille Granvil, Felix Huth, Alexander D. James, Wenying Li, Céline Veau, Graeme Young, Qin Yue, Gregory S. Walker, Upendra A. Argikar, Jonathan N. Bauman, Cathy Cantalloube, Yu‐Luan Chen, Ping Kang, Patricia Moliner, Mette L. Pedersen, Isabel Piel, Simone Schadt, Hanno Schieferstein, Julia Suchomel, Shuai Wang, S. Cyrus Khojasteh   +24 more
wiley   +1 more source

Radiological dose assessment of naturally occurring radioactive materials generated by the petroleum industry in wildlife: A case study of chinkaras of Lavan Island, Iran [PDF]

Journal of Advances in Environmental Health Research, 2014
Human activities such as oil and gas production can enhance the natural level of naturally occurring radioactive materials (NORM) in by-product and waste streams. Iran has been among the top five oil producing countries since 2005.
Siavash Sedighian, Mohammad Ali Abdoli, Mohammad Hossein Niksokhan, Min Jun Kim, Seung-Yeon Cho   +4 more
doaj   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

MANAGEMENT OF SPECIAL RADIOACTIVE WASTES: PRACTICAL ADVANCES AND CURRENT CHALLENGES

Радиационная гигиена, 2015
The article covers methodological approaches for substantiating the assignment of radioactive wastes (RAO) to special radioactive wastes, as well as the results of its practical application within initial registration of RAO.
I. I. Linge, M. N. Savkin, M. V. Vedernikova   +2 more
doaj  

Radiochemical Methodologies Applied to Analytical Characterization of Low and Intermediate Level Wastes from Nuclear Power Plants

Brazilian Journal of Radiation Sciences, 2019
The aim of this work is to present radiochemical methodologies developed at CDTN/CNEN in order to answer a program for isotopic inventory of radioactive wastes from Brazilian Nuclear Power Plants.  In this program  some radionuclides, 3H, 14C, 55Fe, 59Ni,
Roberto Pellacani Monteiro, Aluísio Souza Reis Junior, Geraldo Frederico Kastner, Eliane Silvia Codo Temba, Thiago César de Oliveira, Ângela Maria Amaral, Milton Batista Franco   +6 more
doaj   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source