Results 61 to 70 of about 2,462,374 (243)
Radioisotopic age constraints of the Cambrian Ritland impact structure, Norway
Meteoritics &Planetary Science, EarlyView.Abstract Secondary ion mass spectrometry U‐Pb geochronology has been performed on zircon grains separated from impact melt rock from the 2.7 km‐in‐diameter Ritland impact structure, southwestern Norway. Scanning electron microscope‐based imaging techniques, including electron backscatter diffraction analysis, reveal various zircon grain microtextures ...
William R. Hyde +6 more
wiley +1 more source
Frontiers in Biomedical TechnologiesPurpose: Recently, using hadrons as a therapeutic beam has been highly advised for radiation treatment of mainly deep-seated tumors due to the desired conforming of three-dimensional dose conformation onto tumor volume.
Ahmad Esmaili Torshabi
doaj +1 more source
Development of Physics Applied to Medicine in the UK, 1945–90 [PDF]
, 2006 Annotated and edited transcript of a Witness Seminar held on 5 July 2005. Introduction by Dr Jeff Hughes.First published by the Wellcome Trust Centre for the History of Medicine at UCL, 2006.©The Trustee of the Wellcome Trust, London, 2006.All volumes ...
Christie, DA, Tansey, EM
core
Focal Spot, Spring/Summer 1980 [PDF]
, 1980 https://digitalcommons.wustl.edu/focal_spot_archives/1026/thumbnail ...
core +1 more source
Mixing in the Solar Nebula: Implications for Isotopic Heterogeneity and Large-Scale Transport of Refractory Grains [PDF]
, 2008 The discovery of refractory grains amongst the particles collected from Comet 81P/Wild 2 by the Stardust spacecraft (Brownlee et al. 2006) provides the ground truth for large-scale transport of materials formed in high temperature regions close to the ...
Alan P. Boss +41 more
core +1 more source
Discovery Prospects for a Supernova Signature of Biogenic Origin
, 2011 Approximately 2.8 Myr before the present our planet was subjected to the debris of a supernova explosion. The terrestrial proxy for this event was the discovery of live atoms of 60Fe in a deep-sea ferromanganese crust.
Basu +27 more
core +1 more source
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
Combustion synthesis of Eu,Si‐doped AlN blue phosphor with varying Eu and Si concentrations
Journal of the American Ceramic Society, Volume 108, Issue 9, September 2025.Eu,Si‐doped AlN blue phosphors were synthesized via combustion synthesis using Al, AlN, Eu₂O₃, Si₃N₄, and SrCO₃. The luminescence properties were investigated concerning Eu and Si concentrations, as well as Sr substitution to mitigate Eu content.
Genki Saito +2 more
wiley +1 more source
Drivers of dissolved organic matter processing in subterranean estuaries
Limnology and Oceanography Letters, Volume 10, Issue 4, Page 536-546, August 2025.Abstract Subterranean estuaries (i.e., seawater‐fresh groundwater mixing zones at coastal aquifers) are highly reactive boundaries between continental groundwater and coastal surface seawater. Because particulate organic matter is retained in shallow sediments, internal microbial transformations rely on dissolved organic matter (DOM) supply and ...
Elisa Calvo‐Martin +4 more
wiley +1 more source
Nuclear systems for space power and propulsion [PDF]
As exploration and utilization of space proceeds through the 1970s, 1980s, and beyond, spacecraft in earth orbit will become increasingly larger, spacecraft will travel deeper into space, and space activities will involve more complex operations.
Klein, M.
core +1 more source