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Bin Abdul Hamid, Syamsul Bahrin and O'Leary, Richard and Mulholland, Anthony and Walker, Alan (2011) Improving sensitivity of electrostatic transducer through fluidic amplification technique for air-coupled ultrasound. In: International Workshop on Transducers and Transducer Materials, 2011-05-10, Penn State University.
Mackie, Elaine and O'Leary, Richard and Gachagan, Anthony and Walker, Alan (2011) Polymer substrates for the rapid implementation of capacitive ultrasonic transducers. In: International Workshop on Transducers and Transducer Materials, 2011-05-10, Penn State University.
2010
Walker, A.J. and Stewart, I.W. (2010) Acoustic waves in compressible planar layered smectic liquid crystals. Journal of Physics: Condensed Matter, 22 (32). ISSN 0953-8984
2009
Walker, A.J. and Stewart, I.W. (2009) Couette flow of a smectic A liquid crystal. Journal of Physics: Condensed Matter, 21 (15). pp. 155101-1. ISSN 0953-8984
2008
Walker, A.J. (2008) The alignment of cylindrically layered smectic A liquid crystals with director tilt on the boundaries. Journal of Physics A: Mathematical and Theoretical, 41 (38).
Walker, Alan J. and Mulholland, A.J. and Campbell, Ewan and Hayward, G. (2008) A theoretical model of a new electrostatic transducer incorporating fluidic amplification. In: 2008 IEEE International Ultrasonics Symposium, 1900-01-01.