People who play a ukulele say the four-string instrument is easy to learn, lightweight to hold and not loud enough to annoy housemates or pets. But somehow it’s more fun when you can strum along ...

Light is reflected internally at the edges of the resonator. This creates a series of standing-wave optical modes, or resonances, similar to those that can exist on a vibrating guitar string.

Abstract: Delayed resonator (DR) is an active vibration absorber that can enable complete vibration suppression of a force-excited primary structure at a given frequency by manipulating the loop delay ...

Explore the best ukuleles to match your style and skill level. This 62 cm concert ukulele is a blend of play and beauty. This 24-inch concert ukulele features a mahogany body and rosewood fingerboard ...

Abstract: The theory of the confocal resonator is extended to include the effect of unequal aperture size and unequal radii of curvature of the two reflectors. The latter is equivalent to a periodic ...

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