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・ National Venture Capital Association
・ National Venturing President
・ National Vessel Movement Center
・ National Veteran's Committee
・ National Veterans Art Museum
・ National Veterans Inquiry
・ National Veterans' Day
・ National Veterinary Institute
・ National Veterinary Institute (Sweden)
・ National Veterinary Services Laboratory
・ National Video Archive of Performance
・ National Video Center
・ National Videotex Network
・ National Vigilance Association
・ National Vigilance Park
National Virtual Observatory
・ National Virtual Translation Center
・ National Vision Party
・ National Vision Party of Liberia
・ National Visitor Center
・ National Visual Arts Gallery (Malaysia)
・ National Vital Statistics System
・ National Vocabulary Championship
・ National Vocational and Technical Training Commission
・ National Vocational Qualification
・ National Vodka Day
・ National Voices
・ National Voices for Equality, Education and Enlightenment
・ National Voluntary Guidelines on Social, Environmental and Economic Responsibilities of Business
・ National Voluntary Laboratory Accreditation Program


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National Virtual Observatory : ウィキペディア英語版
National Virtual Observatory

The US National Virtual Observatory (NVO) was conceived to allow scientists to access data from multiple astronomical observatories, including ground and space-based facilities, through a single portal. Originally, the National Science Foundation (NSF) funded the information technology research that created the basic NVO infrastructure through a multi-organization collaborative effort. The NVO was more than a “digital library”; it was a vibrant, growing online research facility akin to a bricks-and-mortar observatory for professional astronomers.
As of October 1, 2014, funding ceased for the National Virtual Observatory (NVO) and all code and digital assets of the project were made publicly available at the VAO Closeout Repository.〔(VAO Closeout Repository )〕
==Concept==
The NVO was conceived to allow scientists to grapple with the enormous growth in astronomical data resulting from significant advances in telescope, detector, and computer technologies. These advances have resulted in a plethora of images, other data, and catalogs. In August 2001, the NSF allocated funding for a proposal entitled "Framework for the National Virtual Observatory". The grant was approved under its Information Technology Research program (since superseded). NVO funding supported collaboration to produce a distributed computing framework for an integrated cyber infrastructure for astronomers providing seamless access to these astronomical resources.
The manifestation of this infrastructure was an operational “virtual observatory” available to scientists and to the public. Investigators acquired existing astronomical data from a variety of observatory archives through “virtual instruments”, that is, computer interfaces, tools, and services. The NVO was planned and implemented in synergy with the research community, the primary users of the system. In 2007, the operational stage of the NVO began with combined funding from NSF and NASA and programmatically executed through NSF. Scientists originally accessed the NVO through the NVO website.〔(US-VO.org )〕

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