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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
September 2025
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Latest News
Deep geologic repository progress—2025 Update
Editor's note: This article has was originally published in November 2023. It has been updated with new information as of June 2025.
Outside my office, there is a display case filled with rock samples from all over the world. It contains a disk of translucent, orange salt from the Waste Isolation Pilot Plant near Carlsbad, N.M.; a core of white-and-bronze gneiss from the site of the future deep geologic repository in Eurajoki, Finland; several angular chunks of fine-grained, gray claystone from the underground research laboratory at Bure, France; and a piece of coarse-grained granite from the underground research tunnel in Daejeon, South Korea.
Technical Session
Wednesday, May 18, 2022|10:15AM–12:00PM EDT|Haselton
Session Chair:
Petri Guimaraes (Studsvik Scandpower)
Alternate Chair:
Baocheng Zhang (Westinghouse Electric Co.)
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Proposal and Application of ROM-Lasso Method for Sensitivity Coefficient Evaluation
Ryota Katano (Japan Atomic Energy Agency), Akio Yamamoto (Nagoya Univ.), Tomohiro Endo (Nagoya Univ.)
Paper
Presentation Video (Visible to Attendees) — Proposal and Application of ROM-Lasso Method for Sensitivity Coefficient Evaluation
A New Approach for Resonance Treatment of Doubly Heterogeneous Fuel Using the RSE Method
Akio Yamamoto (Nagoya Univ.), Tomohiro Endo (Nagoya Univ.), Satoshi Takeda (Osaka Univ.), Hiroki Koike (Mitsubishi Heavy Industries), Kazuya Yamaji (Mitsubishi Heavy Industries), Koichi Ieyama (Mitsubishi Heavy Industries), Koji Asano (Mitsubishi Heavy Industries)
Presentation Video (Visible to Attendees) — A New Approach for Resonance Treatment of Doubly Heterogeneous Fuel Using the RSE Method
Applicability Study of Bayesian Optimization in Core Neutronic Design Using a Toy Model
Kazuki Kuwagaki (Japan Atomic Energy Agency), Kenji Yokoyama (Japan Atomic Energy Agency)
Presentation Video (Visible to Attendees) — Applicability Study of Bayesian Optimization in Core Neutronic Design Using a Toy Model
Data Assimilation for Burnup Distribution of PWR with Three-Dimensional Variational Algorithm and Artificial Neutral Network
Lin Guo (Xi’an Jiaotong Univ.), Chenghui Wan (Xi’an Jiaotong Univ.), Hongchun Wu (Xi’an Jiaotong Univ.)
Presented by Wei Shen (Xi'an Jiaotong Univ.)
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