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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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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.
Gerhard Karsten
Nuclear Technology | Volume 77 | Number 3 | June 1987 | Pages 349-353
Technical Note | Material | doi.org/10.13182/NT87-A33975
Articles are hosted by Taylor and Francis Online.
The application of image-analytical, indenting, and quantitative scanning electron microscopic methods on irradiated uranium and mixed-oxide fuel materials yields nonlinear thermodynamic operational data. Any oxide fuel material from a specific fabrication process undergoes its own means of transformation toward thermodynamic equilibrium through structural metamorphoses by irreversible processes far from equilibrium. The related dissipation energies vary with burnup and temperature because of the variable capability of energy storage, due to specific structural reactions on nuclear impacts. This fact leads to a large variety of operational material properties. Preferable operational hyperelasticity and subsequent viscoelasticity can be predetermined by intentional selected kinetic processing during fuel fabrication.
