نتایج جستجو برای: noise criteria
تعداد نتایج: 449163 فیلتر نتایج به سال:
Establishing noise criteria for residential living in areas surrounding commercial aviation airports
The detectability for a noise-enhanced composite hypothesis testing problem according to different criteria is studied. In this work, the noise-enhanced detection problem is formulated as a noise-enhanced classical Neyman–Pearson (NP), Max–min, or restricted NP problem when the prior information is completely known, completely unknown, or partially known, respectively. Next, the detection perfo...
The jet sound quality "crackle" has historically been studied and quantified using the statistics of the pressure waveform. Some investigators have suggested crackle, and its associated shock content, may be better quantified using the statistics of the time derivative of the waveform. Modified waveforms are used to evaluate crackle prediction criteria based on the skewness of each variable. Th...
abstract background : noise is the most common hazard in the workplace and noise induced hearing loss considered to be the most common occupational disease as well. cigarette smoking, in some studies, has been known to induce hearing loss. the purpose of this study was to evaluate the effect of contemporary exposure to occupational noise and cigarette smoking on hearing. methods : 478 assem...
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