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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Latest News
Ho Nieh nominated to the NRC
Nieh
President Trump recently nominated Ho Nieh for the role of commissioner in the Nuclear Regulatory Commission through the remainder of a term that will expire June 30, 2029.
Nieh has been the vice president of regulatory affairs at Southern Nuclear since 2021, though he is currently working as a loaned executive at the Institute of Nuclear Power Operations, where he has been for more than a year.
Nieh’s experience: Nieh started his career at the Knolls Atomic Power Laboratory, where he worked primarily as a nuclear plant engineer and contributed as a civilian instructor in the U.S. Navy’s Nuclear Power Program.
From there, he joined the NRC in 1997 as a project engineer. In more than 19 years of service at the organization, he served in a variety of key leadership roles, including division director of Reactor Projects, division director of Inspection and Regional Support, and director of the Office of Nuclear Reactor Regulation.
Yuji Ishiguro, Roberto D. M. Garcia
Nuclear Science and Engineering | Volume 68 | Number 1 | October 1978 | Pages 99-110
Technical Note | doi.org/10.13182/NSE78-A27275
Articles are hosted by Taylor and Francis Online.
Three neutron transport problems involving two different media are solved in two-group theory for isotropic scattering based on the singular-eigenfunction-expansion solution of the transport equation. This work has two purposes: First, it is shown that two-media problems in two-group theory can be reduced to regular computational forms using the half-range orthogonality theorem; second, in support of benchmark activities, three model problems are defined, and their solutions are reported based on an exact theory.
