Ditemukan 2 dokumen yang sesuai dengan query
FX Teddy Badai Samodra
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The science that deals with the transformation of electrical energy into acoustic energy or vice versa, electroacoustics, generates an increased intensity and loudness of sound by mechanical and/or electrical means. It should be designed simultaneously with the consideration of room acoustics. A vertical building is usually designed separately from the architectural aspect and other technical considerations. An interior mezzanine has unique sound propagating characteristics because its balconies could be an element of the room acoustic ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2018
UI-IJTECH 9:2 (2018)
Artikel Jurnal Universitas Indonesia Library
Woon Siong Gan
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This book highlights the symmetry properties of acoustic fields and describes the gauge invariance approach, which can be used to reveal those properties. Symmetry is the key theoretical framework of metamaterials, as has been demonstrated by the successful fabrication of acoustical metamaterials.
The book first provides the necessary theoretical background, which includes the covariant derivative, the vector potential, and invariance in coordinate transformation. This is followed by descriptions of global gauge invariance (isotropy), and ...
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Singapore: Springer Singapore, 2019
e20511019
eBooks Universitas Indonesia Library
