"Nuclear energy - The solution to climate change?" discusses how limited U-235 supply may inhibit the expansion of current nuclear technology .
In the paper "Artificial intelligence in radiology: 100 commercially available AI products" , published in European Radiology , the supplementary materials include files labeled with specific sizes that match your query . A compressed folder listed as (237.5KB, rar) . 235.rar
If your interest is in , there are several highly-regarded papers regarding its role in energy and environmental safety: "Nuclear energy - The solution to climate change
"Study on the relationship between the RAR-β gene expressive defection and its methylation" published in European Radiology