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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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This special bibliography lists 511 reports, articles, and other documents introduced into the NASA scientific and technical information system in October, 1973.
This special bibliography lists 473 reports, articles, and other documents introduced into the NASA scientific and technical information system in November 1973.
This special bibliography lists 417 reports, articles, and other documents introduced into the NASA scientific and technical information system in December 1973.
This special bibliography lists 514 reports, articles, and other documents introduced into the NASA scientific and technical information system in January 1974.
This special bibliography lists 338 reports, articles, and other documents introduced into the NASA scientific and technical information system in February 1974.
The application of vibroacoustic techniques for diagnosing aircraft engine malfunctions is discussed. An experiment was conducted to determine the defects introduced by the nature of change in the amplitude-frequency characteristics of the noises and vibrations of an aircraft jet engine. The manner in which the defects were simulated is explained. The test equipment used during the experiment is identified. The results of the amplitude-frequency characteristics investigation are summarized to show optimum location of the microphone pick-up to record the acoustic data.
This special bibliography lists 421 reports, articles, and other documents introduced into the NASA scientific and technical information system in March 1974.
This special bibliography lists 249 reports, articles, and other documents introduced into the NASA scientific and technical information system in April 1974.
This special bibliography lists 430 reports, articles, and other documents introduced into the NASA scientific and technical information system in May 1974.
This special bibliography lists 185 reports, articles, and other documents introduced into the NASA scientific and technical information system in July 1974.
This special bibliography lists 291 reports, articles, and other documents introduced into the NASA scientific and technical information system in August 1974.
This special bibliography lists 374 reports, articles, and other documents introduced into the NASA scientific and technical information system in June 1974.
This special bibliography lists 187 reports, articles, and other documents introduced into the NASA Scientific and Technical Information System in October 1974.
This bibliography lists 206 reports, articles, and other documents introduced into the NASA Scientific and Technical Information System in November 1974.
This bibliography lists 175 reports, articles, and other documents introduced into the NASA scientific and technical information system in December 1974.
A cumulative index to the abstracts contained in NASA SP-7307 (41) through NASA SP-7037 (52) is presented. Subject, personal author, corporate source, contract, and report number indexes are included.
This bibliography lists 316 reports, articles, and other documents introduced into the NASA scientific and technical information system in January 1975.
This bibliography lists 260 reports, articles, and other documents introduced into the NASA scientific and technical information system in February 1975.