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Партнёры


Партнёры

Новые объявления

NAE

NAE

Founded in 1964, the National Academy of Engineering (NAE) is a private, independent, nonprofit institution that provides engineering leadership in service to the nation. The mission of the National Academy of Engineering is to advance the well-being of the nation by promoting a vibrant engineering profession and by marshalling the expertise and insights of eminent engineers to provide independent advice to the federal government on matters involving engineering and technology.

The NAE has more than 2,000 peer-elected members and foreign associates, senior professionals in business, academia, and government who are among the world’s most accomplished engineers. They provide the leadership and expertise for numerous projects focused on the relationships between engineering, technology, and the quality of life.

The NAE is a member of the National Academies, which includes the NAE, the National Academy of Sciences (NAS), the Institute of Medicine (IOM), and the National Research Council (NRC)— which serves as the principal operating arm of the academies. The NAE operates under the same congressional act of incorporation that established the National Academy of Sciences, signed in 1863 by President Lincoln. Under this charter the NAE is directed "whenever called upon by any department or agency of the government, to investigate, examine, experiment, and report upon any subject of science or art."

Engineering program activities of the National Academies cut across the many operational units of the four organizations constituting the Academies, although most projects are executed by units of the NRC.

The NAE’s independent assets and operating funds are held in the National Academy of Engineering Fund (NAEF), a tax-exempt corporation under section 501 (c) (3) of the Internal Revenue Code. It was created to support the mission and goals of the NAE and its tax identification number is 23-7284092.

In addition to offices in Washington, DC, the Academy maintains meeting facilities in Irvine, Calif., and Woods Hole, Mass.

Логотип: NAE Сайт: http://www.nae.edu
 

Разное

Выходные каскады УНЧ бывают разных типов и не всегда есть возможность осуществить первое включение без оконечного каскада. В этом случае возможна замена низкоомных токоизмерительных резисторов на номиналы 5-10 Ом.

Интересно

При первом включении после ремонта (для двухтактных УНЧ):
1. в разрыв "+" и "_" резисторы около 100 Ом для ограничения тока в случае не полного устранения неисправности.