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Effect of change of pitch on gear noise

โœ Scribed by A.Y. Ama


Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
569 KB
Volume
18
Category
Article
ISSN
0022-460X

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EFFECT OF SHIP NOISE ON SLEEP
โœ Y. Tamura; T. Kawada; Y. Sasazawa ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 186 KB

The effects of a steady sound level of 65 dB(A) from a diesel ship engine on nocturnal sleep were studied using polygraphic and subjective sleep parameters. Three healthy men, aged 29 to 33 years, participated in the experiment. Sleep polygrams and the sound level in a sleep laboratory were recorded