Francesco D’Auria is a Professor at the University of Pisa, Italy, and Founder and Head of the University’s San Piero a Grado Nuclear Research Group. He was Founder and Editor-in-Chief of the J. Science & Technology of Nuclear Installations (Hindawi) and has been a member of the Advisory Editorial Board of the J. Nuclear Engineering and Design (Elsevier) since 1990. He has been Chairman and/or Organizer of almost 100 sessions in Conferences since 1982 and was recently General Chairman of the ANS NURETH-15 Conference held in Pisa in 2013. He is a Member of the Technical Review Committee of the JANSI (Japan Nuclear Safety Institute), Member of various international groups in IAEA and OECD/NEA, Chair of the ENS TopSafe Conferences of 2008 and 2012 and forthcoming 2017, as well as Foreign Member of the Academy of Science in Buenos Aires. He received several recognitions including the gold medal ‘N. A. Dollezhal’ from NIKIET in Russia. D’Auria is co-author of more than 900 papers (more than 150 of which have been published in International Journals) and more than 1000 reports. Dr. Yassin Hassan is the Department Head and Professor at Texas A&M University. He received his master’s and doctorate in nuclear in nuclear engineering from the University of Illinois, and a master’s in mechanical engineering from the University of Virginia. He is a fellow of the American Association for the Advancement of Science, the American Society of Mechanical of Mechanical Engineers and American Nuclear Society (ANS). In 2007, Hassan was sworn in as a part-time technical judge to the Atomic Safety and Licensing Board Panel of the U.S. Nuclear Regulatory Commission. He has authored more than 490 refereed publications in technical journals and conference proceedings (195 technical journals and 295 conferences) and more than 380 summaries in American Nuclear Society transactions (the largest for any ANS member since its establishment in 1950). He also serves as editor-in-chief of the Journal of Nuclear Engineering and Design and is associate editor of the Journal of Verification, Validation and Uncertainty Quantification. He is elected to National Academy of Engineering in 2019.