Number of items: 41.
2023
Jimenez Cuesta, C., Worrall, K. , Cammarano, A. , Pickles, D. and Zare-Behtash, H.
(2023)
Plume-regolith Dust Cloud Characterisation.
Lunar Surface Innovation Consortium Spring Meeting, Laurel, MD, USA, 24-25 Apr 2023.
2022
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)
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)
Harkness, P. , Houston, C., Souza, C., Timoney, R., Worrall, K. , Rix, J. and Dixon, A.
(2022)
The Deeper Project: A Testbed for 20m Scale Drilling Technologies.
In: ASTRA 2022, Noordwijk, The Netherlands, 01-02 Jun 2022,
(Accepted for Publication)
Gordon, R., Ceriotti, M. and Worrall, K.
(2022)
Attitude Control of Satellites with Flexible Appendages Using Inverse Simulation.
In: 73rd International Astronautical Congress (IAC), Paris, France, 18-22 Sept 2022,
(Accepted for Publication)
Loettgen, J. L., Ceriotti, M. , Aragon Camarasa, G. and Worrall, K.
(2022)
Application of Deep Reinforcement Learning for Attitude Control of a Satellite in the Presence of Uncertainties.
In: 73rd International Astronautical Congress (IAC), Paris, France, 18-22 Sept 2022,
Gordon, R., Worrall, K. and Ceriotti, M.
(2022)
Attitude Control of a Nanosatellite using Inverse Simulation.
In: 72nd International Astronautical Congress 2021, Dubai, United Arab Emirates, 25-29 Oct 2021,
pp. 833-847.
ISBN 9781713843078
2021
Moore, I. , Bailet, G. , Beeley, J., Timmons, T. , Ceriotti, M. , Stamat, L., Worrall, K. and McInnes, C. R.
(2021)
Multi-probe In-situ Detection of GasEous Species (MIDGES): A Low Cost Mission to Detect PH3 in the Venusian Atmosphere.
18th International Planetary Probe Workshop, June-August 2021.
2020
Timoney, R., Worrall, K. , Firstbrook, D. , Harkness, P. , Rix, J., Ashurst, D., Mulvaney, R. and Bentley, M. J.
(2020)
A low resource subglacial bedrock sampler: the percussive rapid access isotope drill (P-RAID).
Cold Regions Science and Technology, 177,
103113.
(doi: 10.1016/j.coldregions.2020.103113)
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)
2019
Worrall, K. , Houston, C., Cebecauer, M., Flessa, T., McGookin, E. , Thomson, D. and Harkness, P.
(2019)
Design and Implementation of a Control System for a Tunneling Robot.
In: 2019 IEEE Smart World Congress, Leicester, UK, 19-23 Aug 2019,
ISBN 9781728140346
(doi: 10.1109/SmartWorld-UIC-ATC-SCALCOM-IOP-SCI.2019.00084)
2018
Firstbrook, D. , Flessa, T., Worrall, K. , McGookin, E. , Harkness, P. and Thomson, D.
(2018)
Ultrasonic Auger for Narrow-Gauge Borehole Drilling.
In: IEEE International Ultrasonics Symposium (IUS 2018), Kobe, Japan, 22-25 Oct 2018,
(doi: 10.1109/ULTSYM.2018.8579687)
Flessa, T., Worrall, K. J. , Firstbrook, D. , McGookin, E. , Thomson, D. and Harkness, P.
(2018)
FDIR for a Biologically Inspired Trenchless Drilling Device.
In: Control 2018, Sheffield, UK, 05-07 Sep 2018,
ISBN 9781538628645
(doi: 10.1109/CONTROL.2018.8516893)
Worrall, K. J. , Firstbrook, D. , Flessa, T., McGookin, E. , Thomson, D. and Harkness, P.
(2018)
Modelling and Control of a Biologically Inspired Trenchless Drilling Device.
In: Control 2018, Sheffield, UK, 05-07 Sep 2018,
ISBN 9781538628645
(doi: 10.1109/CONTROL.2018.8516859)
Yemets, M., Yemets, V., Dron, M., Harkness, P. and Worrall, K.
(2018)
Caseless Throttleable Solid Motor for Small Spacecraft.
69th International Astronautical Congress, Bremen, Germany, 1-5 Oct 2018.
Yemets, V., Harkness, P. , Dron, M., Pashkov, A., Worrall, K. and Middleton, M.
(2018)
Autophage engines: towards a throttleable solid motor.
Journal of Spacecraft and Rockets, 55(4),
pp. 984-992.
(doi: 10.2514/1.A34153)
Firstbrook, D. , Worrall, K. , Timoney, R. and Harkness, P.
(2018)
Ultrasonically Assisted Hammer-Action Penetrators in Planetary Regolith.
ASCE Earth and Space Conference, Cleveland, OH, USA, 10-13 Apr 2018.
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)
Timoney, R., Worrall, K. , Firstbrook, D. and Harkness, P.
(2018)
Development of a Heuristic Thermal Control System for the Ultrasonic Planetary Core Drill.
In: 16th Biennial ASCE International Conference on Engineering, Science, Construction and Operations in Challenging Environments, Cleveland, Ohio, 09-12 Apr 2018,
pp. 317-327.
ISBN 9780784481899
(doi: 10.1061/9780784481899.032)
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.
Ireland, M. L. , Mackenzie, R., Flessa, T., Worrall, K. J. , Thomson, D. G. and McGookin, E. W.
(2017)
Inverse Simulation as a Tool for Fault Detection and Isolation in Planetary Rovers.
In: 10th International ESA Conference on Guidance, Navigation and Control Systems, Salzburg, Austria, 29 May - 02 Jun 2017,
Ireland, M. L. , Worrall, K. J. , Mackenzie, R., Flessa, T., McGookin, E. and Thomson, D.
(2017)
A Comparison of Inverse Simulation-Based Fault Detection in a Simple Robotic Rover with a Traditional Model-Based Method.
In: 19th International Conference on Autonomous Robots and Agents (ICARA 2017), Madrid, Spain, 26-27 Mar 2017,
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)
Firstbrook, D. , Worrall, K. , Timoney, R., Suñol, F., Gao, Y. and Harkness, P.
(2017)
An experimental study of ultrasonic vibration and the penetration of granular material.
Proceedings of the Royal Society of London Series A: Mathematical, Physical and Engineering Sciences, 473(2198),
20160673.
(doi: 10.1098/rspa.2016.0673)
Firstbrook, D. G. , Worrall, K. , Doherty, P., Timoney, R., Harkness, P. and Suñol, F.
(2017)
Ultrasonic Penetration of Granular Materials in Varying Gravity.
In: ASCE Earth and Space Conference, Orlando, FL, USA, 11-15 Apr 2016,
ISBN 9780784479971
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
Flessa, T., McGookin, E. , Thomson, D. and Worrall, K.
(2016)
Numerical Efficiency of Inverse Simulation Methods Applied to a Wheeled Rover.
In: 9th EUROSIM Congress on Modelling and Simulation, Oulu, Finland, 12-16 Sep 2016,
ISBN 9781509041190
(doi: 10.3384/ecp17142348)
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.
Firstbrook, D. , Worrall, K. , Timoney, R., Harkness, P. , Suñol, F. and Gao, Y.
(2016)
Ultrasonically Assisted Penetration Through Granular Materials.
13th International Planetary Probe Workshop, Laurel, MD, USA, 13-17 Jun 2016.
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,
2015
Worrall, K. , Thomson, D. , McGookin, E. and Flessa, T.
(2015)
Autonomous Planetary Rover Control Using Inverse Simulation.
In: 13th Symposium on Advanced Space Technologies in Robotics and Automation (ASTRA 2015), ESA/ESTEC, Noordwijk, 11-13 May 2015,
Worrall, K. , Thomson, D. and McGookin, E.
(2015)
Application of Inverse Simulation to a Wheeled Mobile Robot.
In: 6th International Conference on Automation, Robotics and Applications (ICARA 2015), Queenstown, New Zealand, 17-19 Feb 2015,
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)
2013
Kim, J. and Worrall, K.
(2013)
Sun Tracking Controller for UKube-1 Using Magnetic Torquer Only.
In: 19th IFAC Symposium on Automatic Control in Aerospace, Wurzburg, Germany, 02-06 Sep 2013,
2006
Worrall, K.J. and McGookin, E. W.
(2006)
A Mathematical Model of a Lego Differential Drive Robot.
In: International Control Conference (ICC2006), Glasgow, UK, 30 Aug-1 Sept 2006,
2003
Hersh, M.A. and Worrall, K.
(2003)
Design Issues in the Development of Communication Devices for Deafblind People.
In: IEEE Symposium on Assistive Technology, Glasgow, UK, 2003,
Hersh, M.A. , Worrall, K. and Johnson, M.A.
(2003)
Survey of AT for Deafblind People: State of the Art and New Developments.
In: 7th Conference of the Association for the Advancement of Assistive Technology in Europe: AAATE 2003, Dublin, Ireland,
pp. 495-499.
This list was generated on Sat Jun 10 07:08:15 2023 BST.