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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
November 2025
Nuclear Technology
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Fusion Science and Technology
Latest News
Senate EPW Committee to hold Nieh nomination hearing
Nieh
The Senate Environment and Public Works Committee will hold a nomination hearing Wednesday for Ho Nieh, President Donald Trump’s nominee to serve as commission at the Nuclear Regulatory Commission.
Trump nominated Nieh on July 30 to serve as NRC commissioner the remainder of a term that will expire June 30, 2029, as Nuclear NewsWire previously reported.
Nieh has been vice president of regulatory affairs at Southern Nuclear since 2021, though since June 2024 he has been at the Institute of Nuclear Power Operations as a loaned executive.
A return to the NRC: If confirmed by the Senate, Nieh would be returning to the NRC after three previous stints totaling nearly 20 years.
Technical Session|Sponsored by THD
Monday, June 16, 2025|3:15–5:00PM CDT|Chicago Ballroom A
Session Chair:
Prashant Jain (ORNL)
Alternate Chair:
Jun Liao (Westinghouse Electric Co.)
This session will conclude with a brief THD awards ceremony 5:00-5:15PM CDT
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Analysis of Oval Twisted Helical Tube Heat Exchanger with RELAP5-3D: Effect of Oscillating Wall Temperature
3:15–3:35PM CDT
Scott F. Wahlquist (Idaho State), Ahmed Hamed (INL), Piyush Sabharwall (INL), George Mesina (INL), Palash Bhowmik (INL), Amir Ali (Idaho State)
Paper
Implementation of First Dry-Out Model Into System TH Code Mars-Ks for Helical Coiled SGs of SMRs
3:35–3:55PM CDT
Yujeong Ko (Seoul Nat'l Univ.), Hyoung Kyu Cho (Seoul Nat'l Univ.)
Assessment of MARS-KS Code Using OECD/NEA ATLAS A1.2 Test
3:55–4:15PM CDT
Kyung-Won Lee (Korea Institute of Nuclear Safety), Andong Shin (Korea Institute of Nuclear Safety)
Assessment of TRACE Code for SLB Accompanied by SGTR
4:15–4:35PM CDT
Seung Hun Yoo (Korea Institute of Nuclear Safety), Yong Seok Choi (Korea Institute of Nuclear Safety)
TRACE Simulation of Experiments Related to Two-phase Internal Circulation in a Two-Dimensional Channel
4:35–4:55PM CDT
Yang Zhao (Purdue Univ.), Yunlin Xu (Purdue Univ.), Mamoru Ishii (Purdue Univ.), Shawn Marshall (U.S. Nuclear Regulatory Commission)
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