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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.
Yasushi Takeda
Nuclear Technology | Volume 79 | Number 1 | October 1987 | Pages 120-124
Technical Note | Heat Transfer and Fluid Flow | doi.org/10.13182/NT87-A16010
Articles are hosted by Taylor and Francis Online.
The ultrasound velocity profile monitor has been developed. It utilizes the pulsed echo techniques of ultrasound, and it can measure the velocity profile quasi-instantaneously. Its applicability to flow in mercury was investigated, and measurements for bifurcating flow in a T tube were made. Profiles were obtained for different configurations of measuring lines and flow directions, and lengths of flow fields were evaluated and compared with the pipe lengths. Results showed good agreement, implying that the method can measure the velocity profile in liquid-metal flows successfully.
