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- W2024194593 abstract "The results of J. Keller's Geometrical Theory of Diffraction and A. Pierce's single and double edge diffraction theories are used to develop a theoretical ray model for predicting noise attenuations by double barriers. Acoustical scale model experiments were conducted to test the validity of the theory. The experimental results are compared with the attenuations calculated using a computer model. It is shown that the double barrier attenuation (above and beyond that due to geometrical spreading) should be calculated by cascading the attenuation caused by each of the two barriers. This contradicts the generally accepted assumption that given two widely spaced barriers located between a source and receiver, only one of them significantly reduces the noise reaching the receiver. [Work supported by NSF and MIT; thesis advisor: Prof. Richard H. Lyon.]" @default.
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- W2024194593 date "1979-06-01" @default.
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- W2024194593 title "A ray model for predicting sound attenuation by double barriers" @default.
- W2024194593 doi "https://doi.org/10.1121/1.2017374" @default.
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