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Acoustic waves (2)

Acoustic impedance; Algorithms; Mathematical models; Optimization; Porosity; Porous materials; Viscous flow; Champoux-Allard model; Inverse characterization methods; Particular absorbing materials; Thermal characteristics

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Acoustic noise measurement (1)
Acoustic wave propagation; Error analysis; Functions; Image processing; Pressure measurement; Auto-correlation functions; Broad-band noise; Power spectral density (PSD) (1)
Electric power generation; Noise abatement; Spurious signal noise; Turbomachine blades; Acousticians; Infrasound; Noise sources; Optimum assessment methods (1)
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Aproximadamente 6 registro(s) hasta el momento: (knowledge)

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Recurso libre

Acoustic source localization with environmental uncertainty
Dosso, Stan E.; School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3P6, Canada - Wilmut, Michael J.; School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3P6, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	A nonlinear Bayesian formulation is applied to study uncertainty in ocean acoustic source localization due to uncertainty in the knowledge of ocean environmental properties. Localization uncertainty is quantified in terms of probability ambiguity surfaces (PAS), which consists of joint marginal…
Fecha:	2006-09-01
Recurso:	Canadian Acoustics

Recurso libre

On estimating sound power from a few single point measurements
Richarz, Werner; Pinchin Environmental, 5749 Coopers Ave, Mississauga, Ont. L4Z 1R5

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	The features of sound pressure measurements over reflective ground for compact source radiating broad-band noise, are described. The nature of a sound field generated by a broad-band source located above a reflecting surface, is also described. The mean-square sound is…
Fecha:	2006-09-01
Recurso:	Canadian Acoustics

Recurso libre

Inverse acoustical characterization of open cell porous media using impedance tube measurements
Atalla, Youssef; Grp. Acoust. l'Univ. de Sherbrooke, Dept. Génie Mécanique, Université de Sherbrooke, Sherbrooke, Que. J1K 2R1, Canada - Panneton, Raymond; Grp. Acoust. l'Univ. de Sherbrooke, Dept. Génie Mécanique, Université de Sherbrooke, Sherbrooke, Que. J1K 2R1, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	Unlike porous models developed for particular absorbing materials and frequency ranges, the Johnson-Champoux-Allard model is a generalized model for sound propagation in porous materials over a wide range of frequencies. This model is nowadays used widely across the acoustic research…
Fecha:	2005-03-01
Recurso:	Canadian Acoustics

Recurso libre

Infrasound from wind turbines - Fact, fiction or deception
Leventhall, Geoff; Noise and Vibration Consultant, 150 Craddocks Avenue, Ashtead Surrey KT21 1NL, United Kingdom

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, ,
Enlaces:	Infrasound is discussed in terms of what it actually is, how the media has dealt with it and what those with limited knowledge say about it. The perception of infrasound occcurs at levels higher than the levels produced by wind…
Fecha:	2006-06-01
Recurso:	Canadian Acoustics

Recurso libre

Changes to iso standards and their effects on machinery noise declarations
Keith, Stephen E.; Healthy Environments and Consumer Safety Branch, Environmental and Radiation Health Sciences Directorate, Consumer and Clinical Radiation Protection Bureau, 775 Brookfield Rd. 6301B, Ottawa, ON KlA lCl, Canada - BIy, Stephen H. P.; Healthy Environments and Consumer Safety Branch, Environmental and Radiation Health Sciences Directorate, Consumer and Clinical Radiation Protection Bureau, 775 Brookfield Rd. 6301B, Ottawa, ON KlA lCl, Canada

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	The article describes recent improvements in the basic ISO standards for measurement of machinery noise and how they can affect the ease of determination, or the reliability, of machinery noise declarations. Improvements to the ISO standards could be incorporated into…
Fecha:	2011-09-01
Recurso:	Canadian Acoustics

Recurso libre

Review of legal suits involving hand-arm vibration
Jetzer, Thomas; Occupational Medicine Consultants, 6515 Barrie Road, Edina, MN 55359, United States

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Conference Proceedings, Actes de congrès
Enlaces:	The characteristics of lawsuits involving hand-arm vibration (HAV), the medical issues involved, and the strategies of defense and plaintiff attorneys as noted in a particular occupational medicine practice, are outlined. The study finds that there is widespread lack of physician…
Fecha:	2011-06-01
Recurso:	Canadian Acoustics