Select Publications

Provided below are selected publications on acoustics topics authored and co-authored by John Parkins. These publications are referenced in nationally and internationally published books, journals and patents. The articles may be downloaded by clicking on the files below.

1. Active minimization of energy density in a three-dimensional enclosure

J. W. Parkins, Ph. D. thesis, Pennsylvania State University, University Park, PA, (1998).

Digital feedforward active noise control using multiple control sources and multiple energy density sensors. Theoretical, simulated and experimental results presented along with analysis of a practical energy density sensor..

2. Narrowband and broadband active control in an enclosure using the acoustic energy density

J. W. Parkins, S. D. Sommerfeldt and J. Tichy, J. Acoust. Soc. Am., (108), No. 1, pp. 192-203, (2000).

Digital feedforward active noise control using multiple control sources and multiple energy density sensors.

3. Error analysis of a practical energy density sensor

J. W. Parkins, S. D. Sommerfeldt and J. Tichy, J. Acoust. Soc. Am., (108), No. 1, pp. 211-222, (2000).

Error analysis of an energy density sensor used in active noise control experiments.

4. A comparison of two active control methods through an investigation of node structures

J. W. Parkins, J. Tichy and S. D. Sommerfeldt, ACTIVE '99, pp. 729-740, (1999).

Statistical analysis of energy density versus squared pressure active control with regard to nodal structures.

5. Experiments in Acoustically-Induced Freezing

C. C. Ryerson, D. G. Albert, F. Perron, G. G. Koenig, D. Parkins and J. Parkins, IWAIS XIII, Sept. 8-11, (2009)

Acoustic water droplet levitator for conducting icing experiments.