Onchi's Noise-Prevention Ear Plug
نویسندگان
چکیده
منابع مشابه
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The death of hair cells in the inner ear as a result of exposure to loud noise can lead to irreversible deafness. New work shows that the mammalian cochlea can sense noxious sounds and use Ca(2+) waves to rapidly propagate hair cell damage signals.
متن کاملNoise attenuation and proper insertion of earplugs into ear canals.
OBJECTIVES The study was done to determine whether the noise attenuation attained with the use of earplugs can be improved by teaching the proper insertion of earplugs to users. METHODS Fifty-four randomly selected male subjects were divided into an untrained group (25 persons) and a trained group (29 persons). The trained group was given a lecture on earplug insertion and allowed to practise...
متن کاملMeasurement of effective noise exposure of workers wearing ear-muffs.
This paper presents the methodology and the results of binaural measurements of exposure to noise for 91 industry workers wearing ear-muffs. The results revealed that 18.7% of the workers were exposed to noise of equivalent A-weighted sound pressure levels of over 80 dB(A) and 7.7% to levels of over 85 dB(A). The measured levels were compared with those calculated with the octave-band method ac...
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ژورنال
عنوان ژورنال: JAPANES JOURNAL OF MEDICAL INSTRUMENTATION
سال: 1952
ISSN: 0019-1736,2432-9940
DOI: 10.4286/ikakikaigakuzassi.revival18.0_14