Results 241 to 250 of about 305,424 (300)

1-MHz linewidth VCSEL enabled by monolithically integrated passive cavity for high-stability chip-scale atomic clocks. [PDF]

Light Sci Appl
Tang Z, Li C, Zhang X, Ren W, Shen K, Li C, Bai Q, Li J, Ren A, Wang H, Luo X, Xu H, Wu J.   +12 more
europepmc   +1 more source

Hybrid Underwater Image Enhancement via Dual Transmission Optimization and Transformer-Based Feature Fusion. [PDF]

Sensors (Basel)
Hu N, Li S, Tan J.
europepmc   +1 more source

Neighborhood Differences in Omnipresent Policing and Sleep Health in New York City: Protocol for a Multimethod Quantitative Study.

JMIR Res Protoc
Downing MJ, Budescu M, Holbrook NM.
europepmc   +1 more source

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Low-frequency seismoacoustic ambient noise levels

The Journal of the Acoustical Society of America, 1988
Studies of the infrasonic ocean noise induced by the interaction of surface waves have shown that the noise levels are dependent not only on the ocean-wave field but also on the geoacoustic properties of the environment. A full understanding of the processes involved requires an examination of the role of the inhomogeneous components of the induced ...
A. C. Kibblewhite, C. Y. Wu
openaire   +1 more source

Ambient Noise Levels in Industrial Audiometric Test Rooms

AIHAJ, 1994
In 1983 the Occupational Safety and Health Administration (OSHA) specified maximum permissible ambient noise levels (MPANLs) that would allow valid hearing threshold measurements in an audiometric test room. However, ambient noise sound pressure levels (SPLs) in rooms used for industrial hearing tests are unknown. The present study reports octave band (
T, Frank, D L, Williams
openaire   +2 more sources

Ambient Noise Levels in Nursing Homes

American Journal of Audiology, 2000
Conducting hearing tests and hearing screenings in the nursing home environment can be a challenge. One issue which may affect the validity of the test results is the level of ambient noise in those facilities when a sound-treated booth is not available.
J E, Lankford, C M, Hopkins
openaire   +2 more sources

Modelling of Ambient Noise Levels in Urban Environment

2021
The study conducts time-series approach for analysing one year noise monitoring data. Support vector machine (SVM) technique is used as a modelling technique for time-series approach. The noise data is trained using tenfold cross-validation to get optimum hyperparameters (γ, e, C).
S. K. Tiwari, L. A. Kumaraswamidhas, N. Garg   +2 more
openaire   +1 more source