Publications by authors named "Patrick Harkness"

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Autonomous and ultrasonically assisted drilling in a range of rocks and ice.
Xuan Li, Patrick Harkness

Ultrasonics· September 2022

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Full and Half-Wavelength Ultrasonic Percussive Drills.
Xuan Li, Margaret Lucas, Patrick Harkness

IEEE Trans Ultrason Ferroelectr Freq Control· November 2018

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Ultrasonic compaction of granular geological materials.
Andrew Feeney, Sakalima Sikaneta, Patrick Harkness, Margaret Lucas

Ultrasonics· April 2017

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A Parametric Study for the Design of an Optimized Ultrasonic Percussive Planetary Drill Tool.
Xuan Li, Patrick Harkness, Kevin Worrall, Ryan Timoney, Margaret Lucas

IEEE Trans Ultrason Ferroelectr Freq Control· March 2017

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An experimental study of ultrasonic vibration and the penetration of granular material.
David Firstbrook, Kevin Worrall, Ryan Timoney, Francesc Suñol, Yang Gao, Patrick Harkness

Proc Math Phys Eng Sci· February 2017

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Coupling and degenerating modes in longitudinal-torsional step horns.
Patrick Harkness, Margaret Lucas, Andrea Cardoni

Ultrasonics· December 2012

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A brief overview of space applications for ultrasonics.
Patrick Harkness, Margaret Lucas

Ultrasonics· December 2012

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Architectures for ultrasonic planetary sample retrieval tools.
Patrick Harkness, Margaret Lucas, Andrea Cardoni

Ultrasonics· December 2011

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Maximization of the effective impulse delivered by a high-frequency/low-frequency planetary drill tool.
Patrick Harkness, Margaret Lucas, Andrea Cardoni

IEEE Trans Ultrason Ferroelectr Freq Control· November 2011

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Ultrasonic rock sampling using longitudinal-torsional vibrations.
Andrea Cardoni, Patrick Harkness, Margaret Lucas

Ultrasonics· April 2010

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