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Article

Domingo-Roca, Roger and Gilmour, Lauren and Dobre, Oana and Sarrigiannidis, Stylianos and Sandison, Mairi E. and O'Leary, Richard and Mulvana, Helen E. (2023) 3D printing of noncytotoxic high-resolution microchannels in Bisphenol-a ethoxylate dimethacrylate tissue-mimicking materials. 3D Printing and Additive Manufacturing, 10 (5). pp. 1101-1109. ISSN 2329-7670

Tabatabaeipour, Morteza and Trushkevych, Oksana and Dobie, Gordon and Edwards, Rachel S. and McMillan, Ross and MacLeod, Charles and O'Leary, Richard and Dixon, Steven and Gachagan, Anthony and Pierce, Stephen G. (2022) Application of ultrasonic guided waves to robotic occupancy grid mapping. Mechanical Systems and Signal Processing, 163. 108151. ISSN 0888-3270

Omoniyi, O.A. and Mansour, R. and Cardona, M. J. and Briuglia, M. L. and O'Leary, R. L. and Windmill, J. F. C. (2021) Fabrication and characterization of a novel photoactive based (0-3) piezocomposite material with potential as a functional material for additive manufacturing of piezoelectric sensors. Journal of Materials Science: Materials in Electronics, 32. 11883–11892. ISSN 0957-4522

Fang, Haoyu and Qiu, Zhen and Mulholland, Anthony J. and O'Leary, Richard L. and Gachagan, Anthony (2018) Broadband 1-3 piezoelectric composite transducer design using Sierpinski Gasket fractal geometry. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 65 (12). pp. 2429-2439. ISSN 0885-3010

Forbes, Clarissa and Nguyen, Thai T. H. and O'Leary, Richard L. and Price, Chris J. (2018) Elucidating the mechanism of paracetamol sonocrystallization for product purity enhancement. Proceedings of Meetings on Acoustics, 32. ICU2017 - 287. ISSN 1939-800X

Nguyen, Thai T. H. and Khan, Azeem and Bruce, Layla M. and Forbes, Clarissa and O'Leary, Richard L. and Price, Chris J. (2017) The effect of ultrasound on the crystallisation of paracetamol in the presence of structurally similar impurities. Crystals, 7 (10). 294. ISSN 2073-4352

Banks, Robert and O'Leary, Richard L. and Hayward, Gordon (2017) Enhancing the bandwidth of piezoelectric composite transducers for air-coupled non-destructive evaluation. Ultrasonics, 75. 132–144. ISSN 0041-624X

Tramontana, Manuel and Gachagan, Anthony and Nordon, Alison and Littlejohn, David and O'Leary, Richard and Mulholland, Anthony J. (2015) System modeling and device development for passive acoustic monitoring of a particulate-liquid process. Sensors and Actuators A: Physical, 228. pp. 159-169. ISSN 0924-4247

Ramadas, Sivaram Nishal and Jackson, Joseph and Dziewierz, Jerzy and O'Leary, Richard and Gachagan, Anthony (2014) Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging application : a feasibility study. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 61 (3). pp. 496-504. ISSN 0885-3010

Hopper, Clare and Assous, Said and Wilkinson, Paul and Gunn, David and Jackson, Peter and Rees, John and O'Leary, Richard and Lovell, Mike (2012) Bioinspired low-frequency material characterisation. Advances in Acoustics and Vibration, 2012. 927903. ISSN 1687-6261

Octavio, Alberto and O'Leary, Richard L. and Whiteley, Simon M. and Martínez- Graullera, Óscar and Martín-Arguedas, Carlos and Gómez-Ullate, Luis and Montero de Espinosa, Francisco (2011) Air-coupled linear and sparse cMUT array manufactured using MUMPs process. Microsystem Technologies, 17 (10-11). pp. 1635-1644. ISSN 0946-7076

Troge, Alexandre and O'Leary, Richard and Hayward, Gordon and Pethrick, Richard and Mulholland, Anthony (2010) Properties of photocured epoxy resin materials for application in piezoelectric ultrasonic transducer matching layers. Journal of the Acoustical Society of America, 128 (5). pp. 2704-2714. ISSN 1520-8524

Young, A. and Mulholland, A.J. and O'Leary, R.L. (2009) The causal differential scattering approach to calculating the effective properties of random composite materials with a particle size distribution. Springer Proceedings in Physics, 128. pp. 49-59. ISSN 0930-8989

Orr, Leigh-Ann and Mulholland, Anthony J. and O'Leary, Richard L. and Hayward, Gordon (2008) Harmonic analysis of lossy piezoelectric composite transducers using the plane wave expansion method. Ultrasonics, 48 (8). pp. 652-663. ISSN 0041-624X

Orr, L. and Mulholland, A.J. and O'Leary, R.L. and Hayward, G. (2008) Analysis of ultrasonic transducers with fractal architecture. Fractals, 16 (4). pp. 333-349. ISSN 0218-348X

Mulholland, A. and Ramadas, S.N. and O'Leary, R.L. and Parr, A.C.S. and Hayward, G. and Troge, Alexandre and Pethrick, R.A. (2008) Enhancing the performance of piezoelectric ultrasound transducers by the use of multiple matching layers. IMA Journal of Applied Mathematics, 73 (6). pp. 936-949. ISSN 1464-3634

Orr, L. and Mulholland, A.J. and O'Leary, R.L. and Parr, A.C.S. and Pethrick, R.A. and Hayward, G. (2007) Theoretical modelling of frequency dependent elastic loss in composite piezoelectric transducers. Ultrasonics, 47 (1). pp. 130-137. ISSN 0041-624X

Mulholland, A. and Ramadas, S.N. and O'Leary, R.L. and Parr, A.C.S. and Troge, A. and Hayward, G. and Pethrick, R.A. (2007) A theoretical analysis of a piezoelectric ultrasound device with an active matching layer. Ultrasonics, 47 (1). pp. 102-110. ISSN 0041-624X

O'Leary, R.L. and Hayward, G. and Murray, V. (2007) Finite element technique for the assessment of 3-1 and 'super 1-3' connectivity piezoelectric composite transducers. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 54 (10). pp. 2024-2035. ISSN 0885-3010

Parr, A.C.S. and O'Leary, R.L. and Hayward, G. (2005) Improving the thermal stability of 1-3 piezoelectric composite transducers. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 52 (4). pp. 550-563. ISSN 0885-3010

O'Leary, Richard L. and Hayward, Gordon (1999) Investigation into the effects of modification of the passive phase for improved manufacture of 1-3 connectivity piezocomposite transducers. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 46 (3). pp. 511-516. ISSN 0885-3010

Book Section

Domingo-Roca, Roger and Gilmour, Lauren and Asciak, Lisa and Sarrigiannidis, Stylianos and Dobre, Oana and Salmeron-Sanchez, Manuel and Sandison, Mairi and O'Leary, Richard and Jackson-Camargo, Joseph and Mulvana, Helen; (2022) 3D-printed high-resolution microchannels for contrast enhanced ultrasound research. In: 2021 IEEE International Ultrasonics Symposium (IUS). 2021 IEEE Ultrasonics Symposium (IUS), 2021-Janu . IEEE, CHN, pp. 1-4. ISBN 9781665403559

Omoniyi, O. A. and Mansour, R. and Reid, A. and Liang, L. and O'Leary, R. and Windmill, J. F.C.; (2020) 3D-printing of a piezocomposite material with high filler content for transducer applications. In: IUS 2020 - International Ultrasonics Symposium, Proceedings. IEEE International Ultrasonics Symposium, IUS . IEEE, USA. ISBN 9781728154480

Omoniyi, O. A. and Mansour, R. and Cardona, M. J. and Briuglia, M. L. and O'Leary, R. and Windmill, J. F.C.; (2020) Characterization of (0-3) piezocomposite materials for transducer applications. In: IUS 2020 - International Ultrasonics Symposium, Proceedings. IEEE International Ultrasonics Symposium, IUS . IEEE, USA. ISBN 9781728154480

Forbes, Clarissa and Price, Chris and O'Leary, Richard; (2019) Quantifying ultrasound for sono-crystallization. In: 2019 IEEE International Ultrasonics Symposium (IUS). IEEE International Ultrasonics Symposium (IUS) . IEEE, GBR. ISBN 978-1-7281-4596-9

Omoniyi, O. A. and Tiller, B. and O'Leary, R. and Windmill, James; (2019) Developing a 3D printable electret material for sensing applications. In: 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). IEEE, GBR. ISBN 9781538693049

Qiu, Zhen and Fang, Haoyu and O'Leary, Richard and Gachagan, Anthony and Moldovan, Alexandru; (2018) Broadband piezocrystal transducer array for non-destructive evaluation imaging applications. In: Proceeding 2018 IEEE International Ultrasonics Symposium. IEEE, JPN. ISBN 978-1-5386-3425-7

Li, Xiaotong and Gachagan, Anthony and Dziewierz, Jerzy and O'Leary, Richard and Murray, Paul; (2017) Design of a 2D sparse array transducer for integration into an ergonomic transcranial ultrasound system. In: 2017 IEEE International Ultrasonics Symposium, IUS 2017. IEEE, USA. ISBN 9781538633830

Fang, H. and Qiu, Z. and O'Leary, R. L. and Gachagan, A. and Mulholland, A. J.; (2017) Linear ultrasonic array incorporating a Cantor Set fractal element configuration. In: IEEE International Ultrasonics Symposium (IUS), 2017. IEEE, Piscataway, N.J.. ISBN 9781538633847

Qiu, Zhen and O'Leary, Richard and Gachagan, Anthony and Dobson, Jeff; (2016) Design of a low profile array transducer in d15 mode for high angled shear wave generation. In: Ultrasonics Symposium (IUS), 2016 IEEE International. IEEE, FRA.

Fang, Haoyu and Qiu, Zhen and O'Leary, Richard and Gachagan, Anthony and Mulholland, Anthony; (2016) Improving the operational bandwidth of a 1-3 piezoelectric composite transducer using Sierpinski Gasket fractal geometry. In: Ultrasonics Symposium (IUS), 2016 IEEE International. IEEE, FRA.

Dobson, Jeff and Tweedie, Andrew and Harvey, Gerald and O'Leary, Richard and Mulholland, Anthony and Tant, Katherine and Gachagan, Anthony; Chimenti, Dale E. and Bond, Leonard J., eds. (2016) Finite element analysis simulations for ultrasonic array NDE inspections. In: 42nd Annual Review of Progress in Quantitative Nondestructive Evaluation. AIP Conference Proceedings, USA, 040005-1 - 040005-14. ISBN 9780735413535

O'Leary, Richard L.; (2015) Gas coupled polymeric capacitive transducers via pad printing. In: Proceedings of IEEE International Ultrasonics Symsposium 2015. IEEE, TWN, pp. 1-4. ISBN 9781479981823

O'Leary, Richard and Brown, Gordon and Harvey, Gerald; (2014) Droplets, vapours and clouds – a new approach to capacitive transducer manufacture. In: 2013 IEEE International Ultrasonics Symposium (IUS). IEEE, CZE, pp. 1105-1108. ISBN 9781467356862

Thattaliyath Kadumberi, Arjun Prakash and O'Leary, Richard and Gachagan, Anthony; (2012) Ultrasonic imaging of electrofusion welded polythene pipes employed in utilities industry. In: 51st Annual Conference of the British Institute of Non-Destructive Testing 2012 (NDT 2012). British Institute of Non-Destructive Testing, GBR, pp. 129-139. ISBN 9781622764372

TK, Arjun Prakash and O'Leary, Richard and Gachagan, Anthony and Ross, Kevin and Clutton, Edward; (2012) Ultrasonic imaging of electrofusion welded polyethylene pipes employed in utilities industry. In: Proceedings of BINDT 2012. British Institute of Non-Destructive Testing, GBR. ISBN 9781622764372

Rodríguez-López, Jaime and Elvira, Luis and O'Leary, Richard and Montero de Espinosa, Francisco; Linde, Bogumil B J and Pączkowski, Jacek and Ponikwicki, Nikodem, eds. (2012) Effect of particle volume fraction on the velocity of sound in magnetorheological fluids. In: International Congress on Ultrasonics. AIP Conference Proceedings . AIP Conference Proceedings, POL, pp. 715-718. ISBN 9780735410190

Ho, Kwok Shun and Li, Minghui and O'Leary, Richard and Gachagan, Anthony; Thompson, D.O. and Chimenti, D.E., eds. (2012) Application of frequency compounding to ultrasonic signals for the NDE of concrete. In: Review of Progress in Quantitative Nondestructive Evaluation. AIP Conference Proceedings, 31A . AIP Conference Proceedings, USA, pp. 1508-1515. ISBN 9780735410138

Mutasa, Tapiwa and Nordon, Alison and Gachagan, Anthony and O'Leary, Richard; Ohl, Claus-Dieter and Klaseboer, Evert and Ohl, Siew Wan and Gong, Shi Wei and Khoo, B.C., eds. (2012) Evaluation of ultrasonic reactor for material processing. In: Proceedings of the 8th International Symposium on Cavitation. CAV 2012 Organizers & Research Publishing Services, SGP, pp. 317-320. ISBN 9789810728267

Wang, Chuangnan and Gachagan, Anthony and O'Leary, Richard and MacKersie, John; (2012) High intensity focused ultrasound array transducers using 2-2 stacked piezoelectric composite appropriate for sonochemistry application. In: 2012 IEEE International Ultrasonics Symposium (IUS) Proceedings. IEEE, DEU, pp. 2497-2500. ISBN 9781467345613

Ramadas, Sivaram Nishal and Jackson, Joseph and Tweedie, Andrew and O'Leary, Richard and Gachagan, Anthony; (2011) Conformally mapped 2D ultrasonic array structure for NDT imaging application. In: Proceedings 2010 IEEE international ultrasonics symposium. IEEE, USA, pp. 33-36. ISBN 9781457703829

Mutasa, T. and Gachagan, A. and Nordon, A. and O'Leary, R.L.; (2011) Ultrasonic wave propagation in cylindrical vessels and implications for ultrasonic reactor design. In: Proceedings 2010 IEEE International Ultrasonics Symposium. IEEE, USA, pp. 1470-1473. ISBN 9781457703829

Wang, C. and Gachagan, A. and O'Leary, R.L.; (2011) High intensity focused ultrasound array transducers for sonochemistry applications. In: 2011 IEEE International Ultrasonics Symposium. IEEE, USA, pp. 2329-2333. ISBN 9781457712531

Mulholland, Anthony and MacKersie, John and O'Leary, Richard and Gachagan, Anthony and Walker, A. and Ramadas, Sivaram Nishal; (2011) The use of fractal geometry in the design of piezoelectric ultrasonic transducers. In: 2011 IEEE International Ultrasonics Symposium (IUS). IEEE, USA, pp. 1559-1562. ISBN 9781457712531

Dziewierz, Jerzy and Ramadas, Sivaram Nishal and Gachagan, Anthony and O'Leary, Richard; Thompson, D.O. and Chimenti, D.E., eds. (2010) Hexagonal array structure for 2D NDE applications. In: Review of progress in quantitative nondestructive evaluation. AIP Conference Proceedings, 29 . American Institute of Physics, USA, pp. 825-830. ISBN 9780735407480

Ramadas, S.N. and O'Leary, R.L. and Gachagan, A. and Hayward, G. and Banks, R.A.; (2010) A wideband annular piezoelectric composite transducer configuration with a graded active layer profile. In: Proceedings of the 2009 IEEE International Ultrasonics Symposium (IUS). IEEE, ITA, pp. 2742-2745. ISBN 9781424443895

Ramadas, Sivaram Nishal and O'Leary, Richard and Mulholland, Anthony and Hayward, Gordon and Mackintosh, Allan and Troge, Alexandre and Pethrick, Richard; (2009) Tapered transmission line technique based graded matching layers for thickness mode piezoelectric transducers. In: 2009 IEEE International Ultrasonics Symposium. IEEE, ITA, pp. 1695-1698. ISBN 9781424443895

O'Leary, R.L. and Parr, A.C.S. and Troge, A. and Pethrick, R.A. and Hayward, G.; (2006) Performance of periodic piezoelectric composite arrays incorporating a passive phase exhibiting anisotropic properties. In: IEEE Ultrasonics Symposium, 2005. IEEE, NLD, pp. 1073-1076. ISBN 0780393821

O'Leary, R.L. and Parr, A.C.S. and Hayward, G.; (2004) Multilayered piezoelectric composite transducers. In: 2003 IEEE Symposium on Ultrasonics. IEEE, Piscataway, pp. 1306-1309.

Parr, A.C.S. and O'Leary, R.L. and Hayward, G. and Smillie, G.; Yuhas, D.E. and Schneider, S.C., eds. (2003) Improving the thermal stability of 1-3 piezoelectric composite transducers manufactured using thermally conductive polymeric fillers. In: 2003 IEEE Ultrasonics Symposium Proceedings. IEEE, USA, pp. 362-365. ISBN 0780379225

Parr, A.C.S. and O'Leary, R.L. and Hayward, G. and Smillie, G. and Benny, C.G. and Ewing, H.C. and MacKintosh, A.R.; (2002) Investigating the thermal stability of 1-3 piezoelectric composite transducers by varying the thermal conductivity and glass transition temperature of the polymeric filler material. In: 2002 IEEE Ultrasonics Symposium Proceedings. Ultrasonics Symposium . IEEE, DEU, pp. 1173-1176. ISBN 0780375823

Parr, A. C S and O'Leary, R. L. and Hayward, G. and Smillie, G. and Rice, A. and Smith, P. T.; (2002) Experimental and theoretical evaluation of the thermal behaviour of 1-3 piezoelectric composite transducers. In: 2000 IEEE Ultrasonics Symposium. Proceedings. An International Symposium. IEEE, Piscataway, pp. 1041-1044. ISBN 0780363655

Conference or Workshop Item

Fang, H. and Qiu, Z. and Mulholland, A. J. and O'Leary, R. L. and Gachagan, A. (2018) Linear ultrasonic array design using cantor set fractal geometry. In: 2018 International Workshop on Acoustic Transduction Materials and Devices, 2018-05-08 - 2018-05-10.

Dobson, Jeff and Gachagan, Anthony and O'Leary, Richard and Tweedie, Andrew and Harvey, Gerald (2016) Finite element analysis of ultrasonic CFRP laminate inspection. In: 55th Annual British Conference of Non-Destructive Testing, 2016-09-12 - 2016-09-14, East Midlands Conference Centre and Orchard Hotel.

Xiao, Bo and O'Leary, Richard and Gachagan, Anthony and Li, Wenqi and Burnett, Timothy (2015) Accurate finite element model of equiaxed-grain engineering material for ultrasonic inspection. In: IEEE 2014 International Ultrasonics Symposium, 2014-09-03 - 2014-09-06, Hilton.

Xiao, Bo and Gongzhang, Rui and Lardner, Timothy and O'Leary, Richard and Gachagan, Anthony (2014) Speckle suppression using adaptive frequency compounding in ultrasound nondestructive evaluation of coarse-grained material. In: Quantitative Nondestructive Evaluation Conference, QNDE 2014, 2014-07-20 - 2014-07-25, Idaho. (Unpublished)

O'Leary, Richard and Harvey, Gerald (2014) Polymeric capacitive transducers and arrays for gas coupled operation. In: IEEE 2014 International Ultrasonics Symposium, 2014-09-03 - 2014-09-06, Hilton. (In Press)

Gachagan, Anthony and Xiao, Bo and Gongzhang, Rui and O'Leary, Richard and Li, Minghui (2013) Image de-noising via spectral distribution similarity analysis for non-destructive evaluation. In: 40th Annual Review of Progress in Quantitative Nondestructive Evaluation: Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing, 2013-07-21 - 2013-07-26.

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.

Gachagan, Anthony and Mutasa, Tapiwa and Nordon, Alison and O'Leary, Richard (2011) Design and evaluation of multi-frequency reactor vessel. In: 40th Annual Symposium of the Ultrasonic Industry Association, 2011-05-23 - 2011-05-25.

Dziewierz, Jerzy and Gachagan, Anthony and O'Leary, Richard and Hayward, Gordon (2010) A methodology for the design of triangular-cut piezoelectric ceramic composites for application in 2D hexagonal-element ultrasonic arrays for NDE applications. In: International Workshop on Transducers and Transducer Materials, 2010-05-11, Penn State University.

Dziewierz, J. and Ramadas, S.N. and Gachagan, A. and O'Leary, R.L. and Hayward, G. (2010) A 2D ultrasonic array design incorporating hexagonal-shaped elements for NDE applications. In: 2009 IEEE Ultrasonics Symposium, 2009-09-20 - 2009-09-23.

Ramadas, S.N. and Dziewierz, J. and O'Leary, R.L. and Gachagan, A. and Velichko, A. and Wilcox, P.D. (2010) An annular array with fiber composite microstructure for far field NDT imaging applications. In: 2009 IEEE Ultrasonics Symposium, 2009-09-20 - 2009-09-23.

Dziewierz, Jerzy and Gachagan, Anthony and O'Leary, Richard and Ramadas, Sivaram Nishal (2009) Numerical optimisation of piezocomposite material properties using 3D finite - element modeling. In: 16th International Congress on Sound and Vibration (CSV16), 2009-07-05 - 2009-07-09.

Dziewierz, Jerzy and Ramadas, Sivaram Nishal and Gachagan, Anthony and O'Leary, Richard and Hayward, Gordon (2009) Hexagonal array structure for 2D NDE applications. In: International Workshop on Transducers and Transducer Materials, 2009-05-12, Penn State University.

O'Leary, Richard and Ramadas, Sivaram Nishal and Mulholland, Anthony and Hayward, Gordon and Troge, Alexandre and Pethrick, Richard (2009) Multiphase passive materials for efficient and wideband transduction. In: International Workshop on Transducers and Transducer Materials, 2009-05-12, Penn State University.

Ramadas, S.N. and Hayward, G. and O'Leary, R.L. and McCunnie, T. and Mulholland, A. J. and Troge, A. and Pethrick, R.A. and Robertson, D. and Murray, V. (2007) A three-port acoustic lattice model for piezoelectric transducers containing opposing zones of polarization. In: 2007 IEEE International Ultrasonics Symposium, 2007-10-28 - 2007-10-31.

Harvey, G. and Tweedie, Andrew and Holmes, C. and Wilcox, P.D. and O'Leary, Richard and Gachagan, Anthony (2007) Application of total focussing method in immersion ultrasound non-destructive evaluation. In: BINDT Annual Conference NDT 2007, 2007-09-18 - 2007-09-19.

O'Leary, Richard and Harvey, G. and Gachagan, Anthony and Hayward, Gordon (2007) An insight into the behaviour of periodic piezoelectric composite array transducers incorporating contemporary constituent materials. In: British Institute Non-destructive Testing, 2007-09-10, SECC.

Orr, L. and Mulholland, A.J. and O'Leary, R.L. and Hayward, G. (2007) A theoretical investigation of 2-2 composite transducers with high shear attenuation in the passive phase. In: GDR 2501/CNRS ST21: Étude de la propagation ultrasonore en milieux non homogènes en vue du contrôle non-destructif, 2007-03-01. (Unpublished)

O'Leary, R.L. and Parr, A.C.S. and Hayward, G. and Troge, A. and Pethrick, R.A. (2007) Experimental assessment of periodic piezoelectric composite arrays incorporating an anisotropic passive phase. In: IEEE Ultrasonics Symposium 2006, 2006-10-02 - 2006-10-06.

Gachagan, A. and Harvey, G. and O'Leary, R.L. and Mackersie, J.W. (2007) Investigating the influence of the constituent materials on the performance of periodic piezoelectric composite arrays. In: UNSPECIFIED.

Harvey, G. and Gachagan, A. and O'Leary, R.L. (2007) Simulation of the influence of hydrophones used for the characterization of pressure field distribution in low frequency, high power ultrasonic reactor vessels. In: 1999 IEEE International Ultrasonics Symposium, 1999-10-17 - 1999-10-20, Caesars Tahoe.

O'Leary, R.L. and Tweedie, A. and Harvey, G. and Gachagan, A. and Holmes, C. and Wilcox, P. and Drinkwater, B. (2007) Total focussing method for volumetric imaging in immersion non destructive evaluation. In: 2007 IEEE International Ultrasonics Symposium, 2007-10-28 - 2007-10-31.

Orr, L. and Mulholland, A.J. and O'Leary, R.L. and Hayward, G. (2006) Incorporation of viscoelastic loss into the plane wave expansion approach to modelling composite transducers. In: 2000 IEEE International Ultrasonics Symposium, 2000-10-22 - 2000-10-25, Caribe Hilton.

O'Leary, Richard and Troge, Alexandre and Parr, Agnes and Pethrick, Richard and Hayward, Gordon (2006) Limiting crosstalk in piezoelectric composite arrays via considered design of the passive phase. In: International Congress on Ultrasonics, 2007-04-09 - 2007-04-13.

Parr, Agnes and Troge, Alexandre and O'Leary, Richard and Campbell, Ewan Fraser and Pethrick, Richard and Hayward, Gordon (2005) Enhancing the imaging performance of periodic piezoelectric composite arrays. In: bindt2005 British Institute of Non-destructive Evaluation, 2005-09-13.

O'Leary, R.L. and Hayward, G. and McCunnie, T.F. and Kijowski, M. (2005) 3-3 connectivity multilayered piezoelectric composites. In: 2004 IEEE Ultrasonics Symposium, 2004-08-23 - 2004-08-27.

O'Leary, Richard and Parr, Agnes and Hayward, Gordon (2005) Development of super 1-3 connectivity piezoelectric composite devices for the 20-100kHz frequency band. In: ONR Workshop on Acoustic Transduction Materials and Devices, 2005-05-10, Penn State University.

O'Leary, Richard and Parr, Agnes and TROGE, Alexandre and Pethrick, Richard and Hayward, Gordon (2005) Improving the performance of periodic piezoelectric composite arrays through synthesis of an anisotropic passive phase. In: ONR Workshop on Acoustic Transduction Materials and Devices, 2005-05-10, Penn State University.

Puccio, J.J. and Gatzoulis, L. and O'Leary, R.L. and Hayward, G. (2004) Prediction method for the fundamental radial mode of multi-mode motors. In: 2004 IEEE Ultrasonics Symposium, 2004-08-23 - 2004-08-27.

O'Leary, R.L. and Parr, A.C.S. and Hayward, G. (2003) Multi-layered piezoelectric composite transducers. In: IEEE Symposium on Ultrasonics 2003, 2003-10-05 - 2003-10-08.

O'Leary, Richard and Hayward, Gordon (2003) Finite element analysis of multilayered piezoelectric composite transducers. In: ONR Workshop on Acoustic Transduction Materials and Devices, 2003-05-06, Penn State University.

Parr, Agnes and O'Leary, Richard and Hayward, Gordon and Smith, Paul (2003) A study of the performance of 1-3 piezoelectric composite transducers manufactured using thermally conductive polymeric filler materials. In: ONR Workshop on Acoustic Transduction Materials and Devices, 2003-05-06, Penn State University.

O'Leary, R.L. and Hayward, G. (2002) A theoretical and experimental investigation into multilayered piezoelectric composite transducers. In: IEEE International Ultrasonic Symposium, 2002-10-08 - 2002-10-11.

O'Leary, Richard and Hayward, Gordon and Cochrane, Alexander (1999) Modification of the passive phase for frequency agility within 1-3 piezocomposite transducers. In: 1999 IEEE International Ultrasonics Symposium, 1999-10-17 - 1999-10-20, Caesars Tahoe.

O'Leary, Richard and Hayward, Gordon (1998) Modification of the passive phase within 1-3 connectivity piezocomposite transducers for improved device sensitivity. In: ONR Workshop on Acoustic Transduction Materials and Devices, 1998-05-05, Penn State University.

O'Leary, Richard and Hayward, Gordon (1997) Investigation into the effects of modification of the passive phase for improved manufacture of 1-3 connectivity piezocomposite transducers. In: Ultrasonics International, 1997-07-02.

Other

O'Leary, R.L. and Tweedie, A. (2009) Virtual prototyping for analysis of piezoelectric transducers. IEEE.