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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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Hash Hashemian: Visionary leadership
As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.
A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.
Harold P. Smith, Jr.
Nuclear Science and Engineering | Volume 18 | Number 4 | April 1964 | Pages 508-513
Technical Paper | doi.org/10.13182/NSE64-A18769
Articles are hosted by Taylor and Francis Online.
A previous work on the closed-loop dynamics of nuclear rocket engines with bleed turbine drive3 is modified to study the engine dynamics using a topping turbine system. Root locus considerations show that the response characteristics of the two engine systems should be similar, although the topping turbine system has a faster initial response but slower asymptotic response. These conclusions are corroborated by analog simulation of the non-linear dynamic equations.
