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Ambient Noise Levels in Audiometric Test Rooms Used for Clinical Audiometry
Ear and Hearing, 1993Recently, the American National Standards Institute (ANSI) has specified (ANSI S3.1-1991) maximum permissible ambient noise levels (MPANLs) allowed in an audiometric test room that would produce negligible masking of pure tones presented down to O-dB HL for two test conditions (ears covered, ears not covered) and three test frequency ranges (125-8000 ...
T, Frank, D L, Williams
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Optimization of ambient seismic noise interferometry to monitor groundwater level variations.
2020<p>&#160;In this work, we test the cross-correlation of ambient seismic noise method in monitoring underground water variations. Within this perspective we applied the abovementioned technique to study the water table changes occurring both in areas exploited for drinking water needs and inside landslides.
Taruselli M. +4 more
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Maximum Permissible Ambient Noise Levels for Audiometric Test Rooms
American Journal of Audiology, 1993T, Frank, J D, Durrant, J M, Lovrinic
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Assessment of indoor ambient noise level in school classrooms
2015Previous studies have shown that poor acoustic conditions inside classrooms interfere with an optimal teaching-learning process. Since high background noise levels and long reverberation times cause higher vocal use among teachers, and lower understanding among students, it is recommended to guarantee physical conditions inside the classrooms that ...
PUGLISI, GIUSEPPINA EMMA +3 more
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Stoichiometric methane conversion to ethane using photochemical looping at ambient temperature
Nature Energy, 2020Xiang Yu +2 more
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Power generation from ambient humidity using protein nanowires
Nature, 2020Xiaomeng Liu, Hongyan Gao, Xiaorong Liu
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