A new acoustic levitation device using the interference sound field generated from two opposed radiators

Self-running and self-floating two-dimensional actuator using near-field acoustic levitation

Effect of porosity on the characteristics of underwater acoustic sound absorbers using theoretical models‎

Porous materials have good acoustic damping characteristics over a wide frequency range. As for sound waves, many small-scale pores in the coating materials can convert underwater-coating to rough surfaces. The main property of porous absorbents is their resistance against incident sound wave that leads to damping effect. From a physical point of view, damping occurs due to friction between flu...

Acoustic sound from the electric guitar using DSP techniques

The electric guitar has been developed to withstand electric amplification and utilize (mostly analog) signal processing in order to create a multitude of timbres and sound types. Sometimes it would be desirable to play the same electric guitar, yet with a sound that resembles a good acoustic guitar or some other member of the plucked string instrument family. In this sudy we have investigated ...

Using Boundary Element-Based Near-field Acoustic Holography to Predict the Source Pressures and Sound Field of an Acoustic Guitar

(Near-field Acoustic Holography, Audio Production, Guitar) In recording studios, the placement of microphones to record an acoustic guitar is very much subjected to trial and error and audio engineer preference. In order to make more informed microphone placement decisions, Near-field Acoustic Holography is used to study the sound pressures of the guitar. This technique involves solving the int...

Graphene levitation and orientation control using a magnetic field

Chao Niu, Feng Lin, Zhiming M. Wang, Jiming Bao, and Jonathan Hu Department of Electrical and Computer Engineering, Baylor University, Waco, Texas 76798, USA Department of Electrical and Computer Engineering, University of Houston, Houston, Texas 77204, USA Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China St...