Download or read book Acoustic Noise and Vibration Studies at Cape Canaveral Missile Test Annex written by Robert P. Boyd and published by . This book was released on 1963 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic Noise and Vibration Studies at Cape Canaveral Missile Test Annex written by John. N. Cole and published by . This book was released on 1962 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock and Vibration Data Analysis and Applications written by Defense Documentation Center (U.S.) and published by . This book was released on 1963 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1964 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1963 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASD Technical Report written by and published by . This book was released on 1962 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Attenuation Characteristics of Earmuffs at Low Audio and Infrasonic Frequencies written by Charles W. Nixon and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sound attenuation and transmission loss characteristics of three different earmuffs models were determined from (1) physical measurements of discrete frequency signals in the range from 1 to 500 Hz inside and outside earmuffs being worn by subjects and (2) psychoacoustical or subjective measurements employing the United States of America Institute of Standards 'Real Ear Attenuation at Threshold Method.' Evaluation of the data showed good correlation between the two measurement methods. Greater attenuation was obtained with the subjective method. It was interpreted to be due primarily to the masking effects at threshold of hearing of physiological noise present under the earcups. Findings show that typical present-day earmuffs provide approximately 10 dB of attentuation in the frequency range from 20 to 100 Hz and very little sound protection below 20 Hz. It is recommended that insert earplugs be used for sound protection in intense low audio frequency and infrasonic sound fields. Good earmuffs in combination with insert earplugs should provide more protection than earplugs alone. (Author).
Download or read book Keywords Index to U S Government Technical Reports permuted Title Index written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1963 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Keywords Index to U S Government Technical Reports written by and published by . This book was released on 1963-07 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Factors Engineering Bibliographic Series written by and published by . This book was released on 1960 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of the Acoustical Society of America written by Acoustical Society of America and published by . This book was released on 1963 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic Prediction Methods for Rocket Engines Including the Effects of Clustered Engines and Deflected Exhaust Flow written by R. C. Potter and published by . This book was released on 1966 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Launch Vehicle and Propulsion Program written by and published by . This book was released on 1973 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Business Service Check List written by and published by . This book was released on 1963 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Quarterly written by and published by . This book was released on 1961 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1965 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioastronautics Data Book written by Paul Webb and published by . This book was released on 1965 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
