Results 51 to 60 of about 103,272 (333)

Scanning of Vehicles for Nuclear Materials

, 2013
Might a nuclear-armed terrorist group or state use ordinary commerce to deliver a nuclear weapon by smuggling it in a cargo container or vehicle? This delivery method would be the only one available to a sub-state actor, and it might enable a state to ...
Katz, J. I.
core   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source

Speciation of uranium and radionuclides in the bottom sediments of premises 001/3 of the "Shelter" object

Ядерна фізика та енергетика, 2021
The results of experimental determination of the forms of uranium and radionuclides 90Sr, 137Cs, 154Eu, 238Pu, 239+240Pu, 241Am, and 244Cm in the bottom sediments of the premises 001/3 of the "Shelter" object are presented.
O. O. Odintsov, L. A. Palamar, L. B. Chikur   +2 more
doaj   +1 more source

Magnesium-zinc reduction is effective in preparation of metals [PDF]

, 1967
Uranium, thorium, and plutonium are effectively prepared by magnesium-zinc reduction, using uranium oxides, thorium dioxide, and plutonium dioxide as starting materials.
Knighton, J. B., Steuneberg, R. K.
core   +1 more source

Plutonium isotopic signatures in soils and their variation (2011-2014) in sediment transiting a coastal river in the Fukushima Prefecture, Japan.

Environmental Pollution, 2018
The Fukushima Daiichi Nuclear Power Plant (FDNPP) accident resulted in a significant release of radionuclides that were deposited on soils in Northeastern Japan.
H. Jaegler, F. Pointurier, Y. Onda, A. Hubert, J. Laceby, M. Cirella, O. Evrard   +6 more
semanticscholar   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Dynamic Bonds Enable Repair and Reprocessing of Glycol‐Modified PET

Advanced Functional Materials, EarlyView.
Dynamic hindered urea bonds enable rapid healing in glycol‐modified PET‐based polyurethanes. Tuning the hindered‐amine content allows these polymers to balance mechanical integrity with fast repair, achieving complete scratch disappearance in 30 s at 130°C.
Chaninya Mak‐iad, José Augusto Berrocal, Georges J. M. Formon, Christoph Weder   +3 more
wiley   +1 more source

Microbial community dynamics and cycling of plutonium and iron in a seasonally stratified and radiologically contaminated pond

Scientific Reports, 2023
Plutonium (Pu) cycling and mobility in the environment can be impacted by the iron cycle and microbial community dynamics. We investigated the spatial and temporal changes of the microbiome in an iron (Fe)-rich, plutonium-contaminated, monomictic ...
Nancy Merino, Naomi L. Wasserman, Fanny Coutelot, Daniel I. Kaplan, Brian A. Powell, Yongqin Jiao, Annie B. Kersting, Mavrik Zavarin   +7 more
doaj   +1 more source

In situ beam reduction of Pu(IV) and Bk(IV) as a route to trivalent transuranic coordination complexes with hydroxypyridinone chelators

Journal of Synchrotron Radiation, 2022
The solution-state interactions of plutonium and berkelium with the octadentate chelator 3,4,3-LI(1,2-HOPO) (343-HOPO) were investigated and characterized by X-ray absorption spectroscopy, which revealed in situ reductive decomposition of the tetravalent
Korey P. Carter, Jennifer N. Wacker, Kurt F. Smith, Gauthier J.-P. Deblonde, Liane M. Moreau, Julian A. Rees, Corwin H. Booth, Rebecca J. Abergel   +7 more
doaj   +1 more source

Fukushima plutonium effect and blow-up regimes in neutron-multiplying media

, 2013
It is shown that the capture and fission cross-sections of 238U and 239Pu increase with temperature within 1000-3000 K range, in contrast to those of 235U, that under certain conditions may lead to the so-called blow-up modes, stimulating the anomalous ...
Beglaryan, M. E., Chernegenko, S. A., Grechan, E. V., Kosenko, S. I., Linnik, E. P., Molchinikolov, P. A., Rusov, V. D., Smolyar, V. P., Tarasov, V. A., Vaschenko, V. M., Zelentsova, T. N.   +10 more
core   +1 more source