Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Roger P. Hamernik"'
Autor:
Meibian Zhang, William J. Murphy, Roger P. Hamernik, Wei Qiu, Chuck A Kardous, Thais C. Morata
Publikováno v:
Vibration and Noise.
Introduction It is clear from numerous experiments that current noise standards underestimated hearing trauma by complex noise (defined as a background Gaussian noise with embedded high-level transients), and that an energy metric alone is not suffic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf399a4dcd3b7538521ab8c4efbd6ce
https://doi.org/10.1136/oemed-2018-icohabstracts.1460
https://doi.org/10.1136/oemed-2018-icohabstracts.1460
Autor:
Lin Zeng, Xiao-ru Cheng, Wei Qiu, Robert I. Davis, Roger P. Hamernik, Shan-song Chen, Yiming Zhao
Publikováno v:
Ear & Hearing. 31:527-532
Develop dose-response relations for two groups of industrial workers exposed to Gaussian or non-Gaussian (complex) types of continuous noises and to investigate what role, if any, the kurtosis statistic can play in the evaluation of industrial noise-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bebf642784c196c58b72cdc1f3dfad78
https://doi.org/10.1097/aud.0b013e3181d94e68
https://doi.org/10.1097/aud.0b013e3181d94e68
Publikováno v:
The Journal of the Acoustical Society of America. 122:2245-2254
Sixteen groups of chinchillas (N=140) were exposed to various equivalent energy noise paradigms at 100 dB(A) or 103 dB(A) SPL. Eleven groups received an interrupted, intermittent, and time varying (IITV) non-Gaussian exposure quantified by the kurtos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baa1114d8abeb82a886dbeae9e92effc
https://doi.org/10.1121/1.2775160
https://doi.org/10.1121/1.2775160
Autor:
Peng Zhang, Meibian Zhang, Roger P. Hamernik, Nicholas J. Heyer, Hongwei Xie, Yiming Zhao, Wei Qiu
Publikováno v:
Ear and hearing. 37(3)
Objective To test a kurtosis-adjusted cumulative noise exposure (CNE) metric for use in evaluating the risk of hearing loss among workers exposed to industrial noises. Specifically, to evaluate whether the kurtosis-adjusted CNE (1) provides a better
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36389b88dffbb86c291563b69d2e1931
https://pubmed.ncbi.nlm.nih.gov/26671317
https://pubmed.ncbi.nlm.nih.gov/26671317
Publikováno v:
The Journal of the Acoustical Society of America. 120:3901-3906
Data from an earlier study [Hamernik et al. (2003). J. Acoust. Soc. Am. 114, 386-395] were consistent in showing that, for equivalent energy [Leq= 100 dB(A)] and spectra, exposure to a continuous, nonGaussian (nonG) noise could produce substantially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18d23cf20029d87cf117cda9eb4406c4
https://doi.org/10.1121/1.2372455
https://doi.org/10.1121/1.2372455
Autor:
Wei Qiu, Fhy Chan, Gang Wei, Wenqing Liu, P.W.F. Poon, Chunqi Chang, Roger P. Hamernik, F.K. Lam, Yong Hu
Publikováno v:
IEEE Transactions on Biomedical Engineering. 53:226-237
Tracking variations in both the latency and amplitude of evoked potential (EP) is important in quantifying properties of the nervous system. Adaptive filtering is a powerful tool for tracking such variations. In this paper, a data-reusing non-linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15ff981a9d99f6f62aeb50651c1c726c
https://doi.org/10.1109/tbme.2005.862540
https://doi.org/10.1109/tbme.2005.862540
Publikováno v:
The Journal of the Acoustical Society of America. 114:386-395
Seventeen groups of chinchillas with 11 to 16 animals/group (sigmaN = 207) were exposed for 5 days to either a Gaussian (G) noise or 1 of 16 different non-Gaussian (non-G) noises at 100 dB(A) SPL. All exposures had the same total energy and approxima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de435f0a5128e76ebefb7c89fa5030d1
https://doi.org/10.1121/1.1582446
https://doi.org/10.1121/1.1582446
Publikováno v:
IEEE Transactions on Biomedical Engineering. 49:225-232
Evoked potentials (EPs) are time-varying signals typically buried in relatively large background noise. To extract the EP more effectively from noise, we had previously developed an approach using an adaptive signal enhancer (ASE) (Chen et al., 1995)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f9e1c348cbc0cefdfa0b67291fe9e1a
https://doi.org/10.1109/10.983456
https://doi.org/10.1109/10.983456
Publikováno v:
The Journal of the Acoustical Society of America. 111:320-326
Threshold shifts (TS) were measured at various times following a wide variety of noise exposures on over 900 chinchillas. An analysis of postexposure TS measures and noise-induced permanent threshold shift (PTS) showed that, across audiometric test f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd68c741a71f83ec311c44dd9e13617c
https://doi.org/10.1121/1.1428545
https://doi.org/10.1121/1.1428545
Autor:
Roger P. Hamernik, Wei Qiu
Publikováno v:
Hearing Research. 150:245-257
Changes in cubic distortion product otoacoustic emissions (DeltaDPOAEs), evoked potential threshold shifts (TSs) and outer hair cell (OHC) losses were measured in a population of 95 noise-exposed chinchillas. Each animal was exposed to one of 23 diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fa53e8e0786ef4f9a5559ba569907e0
https://doi.org/10.1016/s0378-5955(00)00204-5
https://doi.org/10.1016/s0378-5955(00)00204-5