AUTHOR=Tian Wenxi TITLE=Grand challenges in advanced nuclear reactor design JOURNAL=Frontiers in Nuclear Engineering VOLUME=1 YEAR=2022 URL=https://www.frontiersin.org/journals/nuclear-engineering/articles/10.3389/fnuen.2022.1000754 DOI=10.3389/fnuen.2022.1000754 ISSN=2813-3412