Articles with "aperture shape" as a keyword



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Aperture Shape Generation Based on Gradient Descent With Momentum

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2949871

Abstract: Direct aperture optimization (DAO) is an effective method to generate high-quality intensity-modulated radiation therapy treatment plans. In generic DAO, the direction of negative gradient descent is generally used to determine the aperture shape. However, this… read more here.

Keywords: aperture; aperture shape; gradient descent; generation ... See more keywords
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Effects of Aperture Shape on Absorption Property of Acoustic Metamaterial of Parallel-Connection Helmholtz Resonator

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Published in 2023 at "Materials"

DOI: 10.3390/ma16041597

Abstract: A Helmholtz resonator (HR) with an embedded aperture is an effective acoustic metamaterial for noise reduction in the low-frequency range. Its sound absorption property is significantly affected by the aperture shape. Sound absorption properties of… read more here.

Keywords: aperture shape; helmholtz resonator; absorption; absorption property ... See more keywords