
Passive nuclear safety is a design approach for safety features, implemented in a , that does not require any active intervention on the part of the operator or electrical/electronic feedback in order to bring the reactor to a safe shutdown state, in the event of a particular type of emergency (usually overheating resulting from a or loss of coolant flow). Such design features tend to rely on the engineering of components such that their predicted behavio.

国家可再生能源实验室(英語:National Renewable Energy Laboratory简称NREL),位于美国,是专门从事和的研究和开发的机构。 NREL是政府所有的、由承包商经营设施,并由提供资金支持。在这样的安排下,个人实体代表联邦政府经营整个实验室。 NREL也会收到国会的资金,以用于研究和进一步开发的项目。 NREL还国. . The National Renewable Energy Laboratory (NREL) in the US specializes in the of , , energy systems integration, and sustainable transportation. NREL is a sponsored by the and operated by the Alliance for Sustainable Energy, a joint venture between

国家可再生能源实验室(英語:National Renewable Energy Laboratory简称NREL),位于美国,是专门从事和的研究和开发的机构。 NREL是政府所有的、由承包商经营设施,并由提供资金支持。在这样的安排下,个人实体代表联邦政府经营整个实验室。 NREL也会收到国会的资金,以用于研究和进一步开发的项目。 NREL还国. . The goal of the (PV) research done at NREL is to decrease the "nation's reliance on generated electricity by lowering the cost of delivered electricity and improving the of PV and ." Photovoltaic research at NREL is performed under the National Center for Photovoltaics (NCPV). A primary mission of the NCPV is to support ongoing ef.