2024

Liu, Y., Nguyen, L. T. K. , Li, X. and Feeney, A. (2024) A Timoshenko-Ehrenfest beam model for simulating Langevin transducer dynamics. Applied Mathematical Modelling, (Accepted for Publication)

Li, X. , Fenu, N. G. , Giles-Donovan, N., Cochran, S. and Lucas, M. (2024) Can Mn: PIN-PMN-PT piezocrystal replace hard piezoceramic in power ultrasonic devices? Ultrasonics, 138, 107257. (doi: 10.1016/j.ultras.2024.107257) (PMID:38335919)

Wang, T., Li, X. , Quan, Q., Harkness, P. and Deng, Z. (2024) Passive versus active control of weight-on-bit for an ultrasonic percussive drill. IEEE/ASME Transactions on Mechatronics, (doi: 10.1109/TMECH.2024.3360977) (Early Online Publication)

2023

Li, X. and Harkness, P. (2023) Rock drilling performance of rotary ultrasonic tools incorporating PZT piezoceramic and Mn:PIN-PMN-PT piezocrystal. Sensors and Actuators A: Physical, 364, 114849. (doi: 10.1016/j.sna.2023.114849)

Liao, S., Li, X. , Deng, M., Liu, B., Wang, Y., Saw, S. N. and Li, Z. (2023) A miniaturized ultrasonic micro-hole perforator for minimally invasive craniotomy. IEEE Transactions on Biomedical Engineering, (doi: 10.1109/TBME.2023.3234965) (Early Online Publication)

Li, X., Huang, T., Zhao, N., Shen, Y., Huang, J., Li, X. , Li, J. and Yang, L. (2023) A design method of traveling wave rotary ultrasonic motors driving circuit under high voltage using single-sided Hertzian contact forced oscillator model. Micromachines A: Physics, 14(1), 64. (doi: 10.3390/mi14010064)

Zhao, C., Li, X., Li, X. and Harkness, P. (2023) Power ultrasonics: exploration tools. In: Gallego-Juárez, J. A., Graff, K. F. and Lucas, M. (eds.) Power Ultrasonics: Applications of High-Intensity Ultrasound. Series: Woodhead Publishing Series in Electronic and Optical Materials. Elsevier, pp. 531-535. ISBN 9780128202548 (doi: 10.1016/B978-0-12-820254-8.00035-X)

2022

Li, X. , Fenu, N. G. , Cochran, S. and Lucas, M. (2022) Bone Cutting Performance of Ultrasonic Surgical Tools Incorporating PZT Piezoceramic and Mn:PINPMN-PT piezocrystal. In: 2022 IEEE International Ultrasonics Symposium (IUS), Venice, Italy, 10-13 October 2022, ISBN 9781665478137 (doi: 10.1109/IUS54386.2022.9958623)

Li, X. , Li, X., Huang, T., Feeney, A. , Worrall, K. and Harkness, P. (2022) Transportation of Granular Materials with Ultrasonic Augers. In: 2022 IEEE International Ultrasonics Symposium (IUS), Venice, Italy, 10-13 October 2022, ISBN 9781665478137 (doi: 10.1109/IUS54386.2022.9958454)

Smith, S., Li, X. , Hafezi, M., Barron, P., Lucas, M. and Feeney, A. (2022) Enhanced Resolution Phase Transformations in a Nitinol Cymbal Ultrasonic Device. In: 2022 IEEE International Ultrasonics Symposium (IUS), Venice, Italy, 10-13 October 2022, ISBN 9781665466578 (doi: 10.1109/IUS54386.2022.9957560)

Li, X. , Li, X., Huang, T., Feeney, A. , Worrall, K. and Harkness, P. (2022) Ultrasonic augers for improved transport of granular materials. Acta Astronautica, 201, pp. 1-11. (doi: 10.1016/j.actaastro.2022.07.054)

Li, X. , Worrall, K. , Vedanthu, A. , Scott-George, A. and Harkness, P. (2022) The pulse-elevator: a pump for granular materials. Acta Astronautica, 200, pp. 33-41. (doi: 10.1016/j.actaastro.2022.07.052)

Li, X. , Kim, J., Roy, A. and Ayvar-Soberanis, S. (2022) High temperature and strain-rate response of AA2124-SiC metal matrix composites. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 856, 144014. (doi: 10.1016/j.msea.2022.144014)

Gupta, D., Savva, J., Li, X. , Chandler, J. H., Shelton, R. M., Scheven, B. A., Mulvana, H., Valdastri, P., Lucas, M. and Walmsley, A. D. (2022) Traditional multiwell plates and petri dishes limit the evaluation of the effects of ultrasound on cells in vitro. Ultrasound in Medicine and Biology, 48(9), pp. 1745-1761. (doi: 10.1016/j.ultrasmedbio.2022.05.001) (PMID:35760602)

Li, X. and Harkness, P. (2022) Autonomous and ultrasonically assisted drilling in a range of rocks and ice. Ultrasonics, 125, 106803. (doi: 10.1016/j.ultras.2022.106803) (PMID:35843070)

Zhao, H., Ju, J., Ye, S., Li, X. and Long, Z. (2022) An automated monitoring strategy for ultrasonic amplitude prediction of piezoelectric transducer. Measurement, 195, 111071. (doi: 10.1016/j.measurement.2022.111071)

2021

Cleary, R. , Li, X. and Lucas, M. (2021) Incorporating direct metal laser sintered complex shaped Ti-6Al-4V components in ultrasonic surgical devices. Journal of the Acoustical Society of America, 150(3), pp. 2163-2173. (doi: 10.1121/10.0006379) (PMID:34598605)

Li, X. , Stritch, T., Manley, K. and Lucas, M. (2021) Limits and opportunities for miniaturising ultrasonic surgical devices based on a Langevin transducer. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 68(7), pp. 2543-2553. (doi: 10.1109/TUFFC.2021.3065207)

Chibli, A. H., Li, X. , Fenu, N. , Cochran, S. and Gachagan, A. (2021) Incorporating Planar Folded Front Masses in Bolted Langevin-Style Transducers for Minimally Invasive Surgery. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 Sep 2021, ISBN 9781665403559 (doi: 10.1109/IUS52206.2021.9593886)

Li, X. , Fenu, N. , Cochran, S. and Lucas, M. (2021) Comparison of Performance of Ultrasonic Surgical Cutting Devices Incorporating PZT Piezoceramic and Mn:PIN-PMN-PT Piezocrystal. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 September 2021, ISBN 9780738112091 (doi: 10.1109/IUS52206.2021.9593623)

Li, X. , Fenu, N. G. , Cochran, S. and Lucas, M. (2021) Ultrasonic Surgical Devices Driven by Piezoelectric Tubes. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 September 2021, ISBN 9780738112091 (doi: 10.1109/IUS52206.2021.9593462)

Li, X. and Harkness, P. (2021) Ultrasonically assisted coring of rocks. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 September 2021, ISBN 9780738112091 (doi: 10.1109/IUS52206.2021.9593485)

2020

Fenu, N. G. , Giles-Donovan, N., Li, X. , Liang, Z., Chibli, A. H., Luo, H., Stock, C., Zhang, S., Lucas, M. and Cochran, S. (2020) Progress Towards the Miniaturization of an Ultrasonic Scalpel for Robotic Endoscopic Surgery Using Mn:PIN-PMN-PT High Performance Piezocrystals. In: IEEE International Ultrasonics Symposium (IUS 2020), Online, 07-11 Sep 2020, ISBN 9781728154480 (doi: 10.1109/IUS46767.2020.9251823)

Fenu, N. G. , Li, X. , Lucas, M. and Cochran, S. (2020) Evaluation of PIC 181 and Mn:PIN-PMN-PT Thickness Extensional Rings for Use in Power Ultrasonic Devices for Minimally Invasive Surgery. In: IEEE International Ultrasonics Symposium (IUS 2020), Online, 07-11 Sep 2020, ISBN 9781728154480 (doi: 10.1109/IUS46767.2020.9251369)

Astashev, V. K., Pichugin, K. A., Li, X. , Meadows, A. and Babitsky, V. I. (2020) Resonant tuning of Langevin transducers for ultrasonically assisted machining applications. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 67(9), pp. 1888-1896. (doi: 10.1109/TUFFC.2020.2991836)

Timoney, R., Worrall, K. , Li, X. , Firstbrook, D. and Harkness, P. (2020) Development of a robust mating system for use in the autonomous assembly of planetary drill strings. Journal of Aerospace Engineering, 33(4), 04020040. (doi: 10.1061/(ASCE)AS.1943-5525.0001139)

Dassow, J., Li, X. , Lee, M.R. , Young, M. and Harkness, P. (2020) Ultrasonic drilling for the characterisation of building stones and salt induced decay. Ultrasonics, 101, 106018. (doi: 10.1016/j.ultras.2019.106018)

2019

Li, X. , Stritch, T. and Lucas, M. (2019) Design of Miniature Ultrasonic Surgical Devices. In: 2019 IEEE International Ultrasonics Symposium (IUS), Glasgow, UK, 06-09 Oct 2019, ISBN 9781728145969 (doi: 10.1109/ULTSYM.2019.8926096)

2018

Li, X. , Lucas, M. and Harkness, P. (2018) Full and half-wavelength ultrasonic percussive drills. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 65(11), pp. 2150-2159. (doi: 10.1109/TUFFC.2018.2867535)

Firstbrook, D. G. , Harkness, P. , Li, X. , Timoney, R. and Worrall, K. (2018) Ultrasonically-assisted penetration of granular and cemented materials. In: Badescu, V. and Zacny, K. (eds.) Outer Solar System: Prospective Energy and Material Resources. Springer International Publishing, pp. 261-268. ISBN 9783319738444 (doi: 10.1007/978-3-319-73845-1_7)

Worrall, K. , Timoney, R., Li, X. , Harkness, P. and Lucas, M. (2018) UPCD: Field Trial Results and Further Work. In: 16th Biennial ASCE International Conference on Engineering, Science, Construction and Operations in Challenging Environments, Cleveland, Ohio, 09-12 Apr 2018, pp. 297-306. ISBN 9780784481899 (doi: 10.1061/9780784481899.030)

2017

Worrall, K. , Timoney, R., Harkness, P. , Li, X. and Lucas, M. (2017) Ultrasonic Planetary Core Drill: Overview and Results from Field Trial. 14th Symposium on Advanced Space Technologies in Robotics and Automation, Leiden, The Netherlands, 20-22 Jun 2017.

Payler, S. J. et al. (2017) Planetary science and exploration in the deep subsurface: results from the MINAR Program, Boulby Mine, UK. International Journal of Astrobiology, 16(2), pp. 114-129. (doi: 10.1017/S1473550416000045)

Li, X. , Harkness, P. , Worrall, K. , Timoney, R. and Lucas, M. (2017) A parametric study for the design of an optimized ultrasonic-percussive planetary drill tool. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 64(3), pp. 577-589. (doi: 10.1109/TUFFC.2016.2633319) (PMID:27913339)

Timoney, R., Li, X. , Worrall, K. , Firstbrook, D. G. , Harkness, P. and Lucas, M. (2017) Push-and-Twist Drillstring Assemblies. In: ASCE Earth and Space Conference, Orlando, FL, USA, 11-15 Apr 2016, ISBN 9780784479971

2016

Macartney, A., Li, X. and Harkness, P. (2016) Meet the MOUSE (Micro-Optic Ultrasonic Exfoliator): Mars Rover Rock Abrasion Tool (RAT) Performance Enhanced by Ultrasonic Technology. AGU Fall Meeting, San Francisco, CA, USA, 12-16 Dec 2016.

Dassow, J., Lee, M. , Li, X. , Harkness, P. , Hild, S., Naylor, L. and Leslie, A. (2016) New Approaches to Assess Weathering of Sandstone. In: 2016 Materials Research Society Fall Meeting & Exhibit, Boston, MA, USA, 27 Nov - 2 Dec 2016,

Timoney, R., Worrall, K. , Li, X. , Firstbrook, D. G. , Harkness, P. and Lucas, M. (2016) Preliminary Testing of the European Ultrasonic Planetary Core Drill (UPCD) in Simulated Permafrost Terrain as a Precursor to Arctic Field Trials. 13th International Planetary Probe Workshop, Maryland, USA, 13-17 Jun 2016.

Dassow, J., Li, X. , Harkness, P. , Hild, S., Leslie, A., Naylor, L. and Lee, M. (2016) Sandstone Weathering: New Approaches to Assess Building Stone Decay. In: 13th International Congress on the Deterioration and Conservation of Stone, Paisley, Scotland, 6-10 Sept 2016, p. 642.

Worrall, K. , Timoney, R., Li, X. , Harkness, P. and Lucas, M. (2016) The European Ultrasonic Planetary Core Drill: Preliminary Results from Field Trials at the Haughton Mars Project. In: Sixth International Conference on Mars Polar Science and Exploration, Reykjavik, Iceland, 5-9 Sept 2016,

Zhang, J.Y. and Li, X. (2016) Optimal Configuration of Sensors in Active Vibration Control. In: The Fourth International Academic Conference for Graduates, NUAA, Nanjing, China, 26-28 Oct 2016,

2015

Li, X. , Meadows, A., Babitsky, V. and Parkin, R. (2015) Experimental analysis on autoresonant control of ultrasonically assisted drilling. Mechatronics, 29, pp. 57-66. (doi: 10.1016/j.mechatronics.2015.05.006)

Li, X. , Worrall, K. , Harkness, P. , Timoney, R., Bolhovitins, A. and Lucas, M. (2015) A Motion Control System Design for an Ultrasonic Planetary Core Drill (UPCD) Unit. In: AIAA Space 2015 Conference, Pasadena, CA, USA, 31 Aug - 2 Sept 2015, ISBN 9781624103346

Timoney, R., Harkness, P. , Worrall, K. , Li, X. , Bolhovitins, A. and Lucas, M. (2015) European Ultrasonic Planetary Core Drill. In: 12th International Planetary Probe Workshop, Cologne, Germany, 15-19 June 2015,

Timoney, R., Harkness, P. , Worrall, K. , Li, X. , Bolhovitins, A., Cheney, A. and Lucas, M. (2015) The Development of the European Ultrasonic Planetary Core Drill (UPCD). In: AIAA Space 2015 Conference, Pasadena, CA, USA, 31 Aug - 2 Sept 2015, ISBN 9781624103346 (doi: 10.2514/6.2015-4553)

2014

Li, X. , Meadows, A., Babitsky, V. and Parkin, R. (2014) Optimization of a universal matchbox on an ultrasonic vibrating system. Ultrasonics, 54(8), pp. 2193-2198. (doi: 10.1016/j.ultras.2014.06.001) (PMID:24953432)

Li, X. , Babitsky, V., Parkin, R. and Meadows, A. (2014) Autoresonant excitation and control of nonlinear mode for ultrasonically assisted drilling. ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik, 94(11), pp. 904-910. (doi: 10.1002/zamm.201300217)

2013

Babitsky, V., Li, X. and Meadows, A. (2013) Autoresonant excitation and control of non-linear mode for ultrasonically-assisted machining. In: Twiefel, J. (ed.) Proceedings of 10th International Workshop on Piezoelectric Materials and Applications and 8th Energy Harvesting Workshop. PZH-Verl. Garbsen TEWISS-Technik und Wissen GmbH. ISBN 9783944586106 (doi: 10.2314/IWPMA_68)

Articles

Liu, Y., Nguyen, L. T. K. , Li, X. and Feeney, A. (2024) A Timoshenko-Ehrenfest beam model for simulating Langevin transducer dynamics. Applied Mathematical Modelling, (Accepted for Publication)

Li, X. , Fenu, N. G. , Giles-Donovan, N., Cochran, S. and Lucas, M. (2024) Can Mn: PIN-PMN-PT piezocrystal replace hard piezoceramic in power ultrasonic devices? Ultrasonics, 138, 107257. (doi: 10.1016/j.ultras.2024.107257) (PMID:38335919)

Wang, T., Li, X. , Quan, Q., Harkness, P. and Deng, Z. (2024) Passive versus active control of weight-on-bit for an ultrasonic percussive drill. IEEE/ASME Transactions on Mechatronics, (doi: 10.1109/TMECH.2024.3360977) (Early Online Publication)

Li, X. and Harkness, P. (2023) Rock drilling performance of rotary ultrasonic tools incorporating PZT piezoceramic and Mn:PIN-PMN-PT piezocrystal. Sensors and Actuators A: Physical, 364, 114849. (doi: 10.1016/j.sna.2023.114849)

Liao, S., Li, X. , Deng, M., Liu, B., Wang, Y., Saw, S. N. and Li, Z. (2023) A miniaturized ultrasonic micro-hole perforator for minimally invasive craniotomy. IEEE Transactions on Biomedical Engineering, (doi: 10.1109/TBME.2023.3234965) (Early Online Publication)

Li, X., Huang, T., Zhao, N., Shen, Y., Huang, J., Li, X. , Li, J. and Yang, L. (2023) A design method of traveling wave rotary ultrasonic motors driving circuit under high voltage using single-sided Hertzian contact forced oscillator model. Micromachines A: Physics, 14(1), 64. (doi: 10.3390/mi14010064)

Li, X. , Li, X., Huang, T., Feeney, A. , Worrall, K. and Harkness, P. (2022) Ultrasonic augers for improved transport of granular materials. Acta Astronautica, 201, pp. 1-11. (doi: 10.1016/j.actaastro.2022.07.054)

Li, X. , Worrall, K. , Vedanthu, A. , Scott-George, A. and Harkness, P. (2022) The pulse-elevator: a pump for granular materials. Acta Astronautica, 200, pp. 33-41. (doi: 10.1016/j.actaastro.2022.07.052)

Li, X. , Kim, J., Roy, A. and Ayvar-Soberanis, S. (2022) High temperature and strain-rate response of AA2124-SiC metal matrix composites. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 856, 144014. (doi: 10.1016/j.msea.2022.144014)

Gupta, D., Savva, J., Li, X. , Chandler, J. H., Shelton, R. M., Scheven, B. A., Mulvana, H., Valdastri, P., Lucas, M. and Walmsley, A. D. (2022) Traditional multiwell plates and petri dishes limit the evaluation of the effects of ultrasound on cells in vitro. Ultrasound in Medicine and Biology, 48(9), pp. 1745-1761. (doi: 10.1016/j.ultrasmedbio.2022.05.001) (PMID:35760602)

Li, X. and Harkness, P. (2022) Autonomous and ultrasonically assisted drilling in a range of rocks and ice. Ultrasonics, 125, 106803. (doi: 10.1016/j.ultras.2022.106803) (PMID:35843070)

Zhao, H., Ju, J., Ye, S., Li, X. and Long, Z. (2022) An automated monitoring strategy for ultrasonic amplitude prediction of piezoelectric transducer. Measurement, 195, 111071. (doi: 10.1016/j.measurement.2022.111071)

Cleary, R. , Li, X. and Lucas, M. (2021) Incorporating direct metal laser sintered complex shaped Ti-6Al-4V components in ultrasonic surgical devices. Journal of the Acoustical Society of America, 150(3), pp. 2163-2173. (doi: 10.1121/10.0006379) (PMID:34598605)

Li, X. , Stritch, T., Manley, K. and Lucas, M. (2021) Limits and opportunities for miniaturising ultrasonic surgical devices based on a Langevin transducer. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 68(7), pp. 2543-2553. (doi: 10.1109/TUFFC.2021.3065207)

Astashev, V. K., Pichugin, K. A., Li, X. , Meadows, A. and Babitsky, V. I. (2020) Resonant tuning of Langevin transducers for ultrasonically assisted machining applications. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 67(9), pp. 1888-1896. (doi: 10.1109/TUFFC.2020.2991836)

Timoney, R., Worrall, K. , Li, X. , Firstbrook, D. and Harkness, P. (2020) Development of a robust mating system for use in the autonomous assembly of planetary drill strings. Journal of Aerospace Engineering, 33(4), 04020040. (doi: 10.1061/(ASCE)AS.1943-5525.0001139)

Dassow, J., Li, X. , Lee, M.R. , Young, M. and Harkness, P. (2020) Ultrasonic drilling for the characterisation of building stones and salt induced decay. Ultrasonics, 101, 106018. (doi: 10.1016/j.ultras.2019.106018)

Li, X. , Lucas, M. and Harkness, P. (2018) Full and half-wavelength ultrasonic percussive drills. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 65(11), pp. 2150-2159. (doi: 10.1109/TUFFC.2018.2867535)

Payler, S. J. et al. (2017) Planetary science and exploration in the deep subsurface: results from the MINAR Program, Boulby Mine, UK. International Journal of Astrobiology, 16(2), pp. 114-129. (doi: 10.1017/S1473550416000045)

Li, X. , Harkness, P. , Worrall, K. , Timoney, R. and Lucas, M. (2017) A parametric study for the design of an optimized ultrasonic-percussive planetary drill tool. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 64(3), pp. 577-589. (doi: 10.1109/TUFFC.2016.2633319) (PMID:27913339)

Li, X. , Meadows, A., Babitsky, V. and Parkin, R. (2015) Experimental analysis on autoresonant control of ultrasonically assisted drilling. Mechatronics, 29, pp. 57-66. (doi: 10.1016/j.mechatronics.2015.05.006)

Li, X. , Meadows, A., Babitsky, V. and Parkin, R. (2014) Optimization of a universal matchbox on an ultrasonic vibrating system. Ultrasonics, 54(8), pp. 2193-2198. (doi: 10.1016/j.ultras.2014.06.001) (PMID:24953432)

Li, X. , Babitsky, V., Parkin, R. and Meadows, A. (2014) Autoresonant excitation and control of nonlinear mode for ultrasonically assisted drilling. ZAMM: Zeitschrift für Angewandte Mathematik und Mechanik, 94(11), pp. 904-910. (doi: 10.1002/zamm.201300217)

Book Sections

Zhao, C., Li, X., Li, X. and Harkness, P. (2023) Power ultrasonics: exploration tools. In: Gallego-Juárez, J. A., Graff, K. F. and Lucas, M. (eds.) Power Ultrasonics: Applications of High-Intensity Ultrasound. Series: Woodhead Publishing Series in Electronic and Optical Materials. Elsevier, pp. 531-535. ISBN 9780128202548 (doi: 10.1016/B978-0-12-820254-8.00035-X)

Firstbrook, D. G. , Harkness, P. , Li, X. , Timoney, R. and Worrall, K. (2018) Ultrasonically-assisted penetration of granular and cemented materials. In: Badescu, V. and Zacny, K. (eds.) Outer Solar System: Prospective Energy and Material Resources. Springer International Publishing, pp. 261-268. ISBN 9783319738444 (doi: 10.1007/978-3-319-73845-1_7)

Babitsky, V., Li, X. and Meadows, A. (2013) Autoresonant excitation and control of non-linear mode for ultrasonically-assisted machining. In: Twiefel, J. (ed.) Proceedings of 10th International Workshop on Piezoelectric Materials and Applications and 8th Energy Harvesting Workshop. PZH-Verl. Garbsen TEWISS-Technik und Wissen GmbH. ISBN 9783944586106 (doi: 10.2314/IWPMA_68)

Conference or Workshop Item

Worrall, K. , Timoney, R., Harkness, P. , Li, X. and Lucas, M. (2017) Ultrasonic Planetary Core Drill: Overview and Results from Field Trial. 14th Symposium on Advanced Space Technologies in Robotics and Automation, Leiden, The Netherlands, 20-22 Jun 2017.

Macartney, A., Li, X. and Harkness, P. (2016) Meet the MOUSE (Micro-Optic Ultrasonic Exfoliator): Mars Rover Rock Abrasion Tool (RAT) Performance Enhanced by Ultrasonic Technology. AGU Fall Meeting, San Francisco, CA, USA, 12-16 Dec 2016.

Timoney, R., Worrall, K. , Li, X. , Firstbrook, D. G. , Harkness, P. and Lucas, M. (2016) Preliminary Testing of the European Ultrasonic Planetary Core Drill (UPCD) in Simulated Permafrost Terrain as a Precursor to Arctic Field Trials. 13th International Planetary Probe Workshop, Maryland, USA, 13-17 Jun 2016.

Conference Proceedings

Li, X. , Fenu, N. G. , Cochran, S. and Lucas, M. (2022) Bone Cutting Performance of Ultrasonic Surgical Tools Incorporating PZT Piezoceramic and Mn:PINPMN-PT piezocrystal. In: 2022 IEEE International Ultrasonics Symposium (IUS), Venice, Italy, 10-13 October 2022, ISBN 9781665478137 (doi: 10.1109/IUS54386.2022.9958623)

Li, X. , Li, X., Huang, T., Feeney, A. , Worrall, K. and Harkness, P. (2022) Transportation of Granular Materials with Ultrasonic Augers. In: 2022 IEEE International Ultrasonics Symposium (IUS), Venice, Italy, 10-13 October 2022, ISBN 9781665478137 (doi: 10.1109/IUS54386.2022.9958454)

Smith, S., Li, X. , Hafezi, M., Barron, P., Lucas, M. and Feeney, A. (2022) Enhanced Resolution Phase Transformations in a Nitinol Cymbal Ultrasonic Device. In: 2022 IEEE International Ultrasonics Symposium (IUS), Venice, Italy, 10-13 October 2022, ISBN 9781665466578 (doi: 10.1109/IUS54386.2022.9957560)

Chibli, A. H., Li, X. , Fenu, N. , Cochran, S. and Gachagan, A. (2021) Incorporating Planar Folded Front Masses in Bolted Langevin-Style Transducers for Minimally Invasive Surgery. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 Sep 2021, ISBN 9781665403559 (doi: 10.1109/IUS52206.2021.9593886)

Li, X. , Fenu, N. , Cochran, S. and Lucas, M. (2021) Comparison of Performance of Ultrasonic Surgical Cutting Devices Incorporating PZT Piezoceramic and Mn:PIN-PMN-PT Piezocrystal. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 September 2021, ISBN 9780738112091 (doi: 10.1109/IUS52206.2021.9593623)

Li, X. , Fenu, N. G. , Cochran, S. and Lucas, M. (2021) Ultrasonic Surgical Devices Driven by Piezoelectric Tubes. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 September 2021, ISBN 9780738112091 (doi: 10.1109/IUS52206.2021.9593462)

Li, X. and Harkness, P. (2021) Ultrasonically assisted coring of rocks. In: IEEE International Ultrasonic Symposium (IUS 2021), Xi'an, China, 11-16 September 2021, ISBN 9780738112091 (doi: 10.1109/IUS52206.2021.9593485)

Fenu, N. G. , Giles-Donovan, N., Li, X. , Liang, Z., Chibli, A. H., Luo, H., Stock, C., Zhang, S., Lucas, M. and Cochran, S. (2020) Progress Towards the Miniaturization of an Ultrasonic Scalpel for Robotic Endoscopic Surgery Using Mn:PIN-PMN-PT High Performance Piezocrystals. In: IEEE International Ultrasonics Symposium (IUS 2020), Online, 07-11 Sep 2020, ISBN 9781728154480 (doi: 10.1109/IUS46767.2020.9251823)

Fenu, N. G. , Li, X. , Lucas, M. and Cochran, S. (2020) Evaluation of PIC 181 and Mn:PIN-PMN-PT Thickness Extensional Rings for Use in Power Ultrasonic Devices for Minimally Invasive Surgery. In: IEEE International Ultrasonics Symposium (IUS 2020), Online, 07-11 Sep 2020, ISBN 9781728154480 (doi: 10.1109/IUS46767.2020.9251369)

Li, X. , Stritch, T. and Lucas, M. (2019) Design of Miniature Ultrasonic Surgical Devices. In: 2019 IEEE International Ultrasonics Symposium (IUS), Glasgow, UK, 06-09 Oct 2019, ISBN 9781728145969 (doi: 10.1109/ULTSYM.2019.8926096)

Worrall, K. , Timoney, R., Li, X. , Harkness, P. and Lucas, M. (2018) UPCD: Field Trial Results and Further Work. In: 16th Biennial ASCE International Conference on Engineering, Science, Construction and Operations in Challenging Environments, Cleveland, Ohio, 09-12 Apr 2018, pp. 297-306. ISBN 9780784481899 (doi: 10.1061/9780784481899.030)

Timoney, R., Li, X. , Worrall, K. , Firstbrook, D. G. , Harkness, P. and Lucas, M. (2017) Push-and-Twist Drillstring Assemblies. In: ASCE Earth and Space Conference, Orlando, FL, USA, 11-15 Apr 2016, ISBN 9780784479971

Dassow, J., Lee, M. , Li, X. , Harkness, P. , Hild, S., Naylor, L. and Leslie, A. (2016) New Approaches to Assess Weathering of Sandstone. In: 2016 Materials Research Society Fall Meeting & Exhibit, Boston, MA, USA, 27 Nov - 2 Dec 2016,

Dassow, J., Li, X. , Harkness, P. , Hild, S., Leslie, A., Naylor, L. and Lee, M. (2016) Sandstone Weathering: New Approaches to Assess Building Stone Decay. In: 13th International Congress on the Deterioration and Conservation of Stone, Paisley, Scotland, 6-10 Sept 2016, p. 642.

Worrall, K. , Timoney, R., Li, X. , Harkness, P. and Lucas, M. (2016) The European Ultrasonic Planetary Core Drill: Preliminary Results from Field Trials at the Haughton Mars Project. In: Sixth International Conference on Mars Polar Science and Exploration, Reykjavik, Iceland, 5-9 Sept 2016,

Zhang, J.Y. and Li, X. (2016) Optimal Configuration of Sensors in Active Vibration Control. In: The Fourth International Academic Conference for Graduates, NUAA, Nanjing, China, 26-28 Oct 2016,

Li, X. , Worrall, K. , Harkness, P. , Timoney, R., Bolhovitins, A. and Lucas, M. (2015) A Motion Control System Design for an Ultrasonic Planetary Core Drill (UPCD) Unit. In: AIAA Space 2015 Conference, Pasadena, CA, USA, 31 Aug - 2 Sept 2015, ISBN 9781624103346

Timoney, R., Harkness, P. , Worrall, K. , Li, X. , Bolhovitins, A. and Lucas, M. (2015) European Ultrasonic Planetary Core Drill. In: 12th International Planetary Probe Workshop, Cologne, Germany, 15-19 June 2015,

Timoney, R., Harkness, P. , Worrall, K. , Li, X. , Bolhovitins, A., Cheney, A. and Lucas, M. (2015) The Development of the European Ultrasonic Planetary Core Drill (UPCD). In: AIAA Space 2015 Conference, Pasadena, CA, USA, 31 Aug - 2 Sept 2015, ISBN 9781624103346 (doi: 10.2514/6.2015-4553)