1.降噪指数NRR是Neural Regeneration Research的缩写，它是降噪指数在250、500、1000、2000Hz测得的赛宾吸声系数的平均值。2. 专业的降噪耳机产品通常会标明降噪指数NRR，NRR值的单位通常用dB SPL表示，就听力保护而言，NRR值是越高越好。3. 一般来说，当周围环境的声音超过80分贝的时候，不管是大人还是...
NRC's Office of Nuclear Reactor Regulation (NRR)nbelieves criticality controls in place under 10 CFR Parts 72nand 71 are sufficient to preclude inadvertent criticality duringna cask loading in a spent fuel pool and will propose annamendment to 10 CFR Part 50.68 that states the latter regulationn...
The Office of Nuclear Reactor Regulation (NRR) concurred with RES’s conclusion and developed an action plan to resolve GSI-191. Public meetings were held with Nuclear Energy Institute (NEI) and the PWR Owners’ Group representatives to discuss development of industry evaluation guidelines for plant...
Comments may be submitted electronically by email to NRR_SRP@nrc.gov. Requests for single copies of SRP sections (which may be reproduced) should be made to the U.S. Nuclear Regulatory Commission, Washington, DC 20555, Attention: Reproduction and Distribution Services Section, or by fax to (...
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Several years ago when the industry began talking about potentially licensing dozens of new plants, the NRC commissioners created an Office of New Reactors, or NRO, independent from the Office of Nuclear Reactor Regulation, or NRR. Klein said the purpose of establishing a separate office was to ...
NRR_SRP@nrc.gov. Requests for single copies of SRP sections (which may be reproduced) should be made to the U.S. Nuclear Regulatory Commission, Washington, DC 20555, Attention: Reproduction and Distribution Services Section, or by fax to (301) 415-2289; or by ...
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