Results 91 to 100 of about 2,120,367 (204)
Ground effects on aircraft noise [PDF]
A flight experiment was conducted to investigate air-to-ground propagation of sound near grazing incidence. A turbojet-powered aircraft was flown at low altitudes over the ends of two microphone arrays.
Hilton, D. A., Willshire, W. L., Jr.
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Wind tunnel investigations of model rotor noise at low tip speeds [PDF]
Experimental and related analytical results on model rotor rotational and broadband noise obtained in the anechoic wind tunnel and rotor facility are summarized.
Aravamudan, K. S. +2 more
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Noise effects in extended chaotic system: study on the Lorenz'96 model [PDF]
, 2007 We investigate the effects of a time-correlated noise on an extended chaotic system. The chosen model is the Lorenz'96, a kind of toy model used for climate studies. The system is subjected to both temporal and spatiotemporal perturbations.
Revelli, Jorge A. +2 more
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Audiology: Communication ResearchObjetivo Identificar a percepção de alunos universitários sobre o ruído em sala de aula e suas consequências sobre a qualidade do aprendizado. Métodos Participaram 100 universitários da área da saúde, de dez salas indicadas como ruidosas por seus ...
Emilse Aparecida Merlin Servilha +1 more
doaj +1 more source
The free jet as a simulator of forward velocity effects on jet noise [PDF]
A thorough theoretical and experimental study of the effects of the free-jet shear layer on the transmission of sound from a model jet placed within the free jet to the far-field receiver located outside the free-jet flow was conducted.
Ahuja, K. K. +2 more
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Noise MappingDue to rapid urbanization and industrialization, noise pollution has become a growing global concern, with significant impacts on occupational and environmental health. Unlike earlier times when it received limited attention, its importance has increased
SheikhMozafari Mohammad Javad +4 more
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Vowel and Sibilant Production in Noise: Effects of Noise Frequency and Phonological Similarity. [PDF]
J Speech Lang Hear Res, 2020 Reilly KJ.
europepmc +1 more source
New developments in blown flap noise technology [PDF]
The noise technology relating to blown-flap systems is reviewed. There are three general sources of noise: turbomachinery, airframe, and the interaction noise of the jet blowing on the flaps.
Gibson, J. S.
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Editorial: Marine invertebrates and sound
Frontiers in Marine Science, 2023 Marta Solé, Michel André
doaj +1 more source
Health impact of environmental and industrial noise – a narrative review
Medycyna PracyIndustrial noise sources are among the environmental noise sources that are ranked second among the causes of ill health in Europe by the World Health Organization.
Markéta Stanovská +4 more
doaj +1 more source