Results 231 to 240 of about 184,389 (296)

3D directivity control of a finite cylindrical loudspeaker array with cylindrical harmonics

2017 IEEE 6th Global Conference on Consumer Electronics (GCCE), 2017
We propose a filter design method based on three-dimensional (3D) bases for a finite cylindrical loudspeaker array. In this method, we first derive the relationship between the 3D bases of directivity patterns and finite cylindrical harmonics. Directivity simulations were conducted using a prototypical 24-element cylindrical array with a radius of 0.07
Yoichi Haneda
exaly   +2 more sources

Superhydrophobic Cylindrical Nanoshell Array

Langmuir, 2010
A superhydrophobic property was demonstrated on a cylindrical poly crystalline silicon nanoshell array due to its geometrical properties, even without a hydrophobic coating. The proposed structure showed superior water-repellency compared to a conventional pillar structure with an identical structural dimension.
Park, YB Park, Yong-Bum   +3 more
openaire   +3 more sources

Cylindrical array radiator

The Journal of the Acoustical Society of America, 1981
A cylindrical array radiator that reduces the intensity of energy radiatedn undesirable directions. The radiator is constructed so that vertical staves placed on the face of a cylinder are staggered in the vertical direction by a predetermined distance to cancel energy in the undesirable directions.
Richard L. Rolleigh   +2 more
openaire   +1 more source

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