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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
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
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).
Conference or Workshop Item
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.
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.