• Publications
  • Influence
Nanopositioning System With Force Feedback for High-Performance Tracking and Vibration Control
  • A. Fleming
  • Engineering
  • IEEE/ASME Transactions on Mechatronics
  • 1 June 2010
In this study, the actuator load force of a nanopositioning stage is utilized as a feedback variable to achieve both tracking and damping. The transfer function from the applied actuator voltage toExpand
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United Kingdom Alcohol Treatment Trial (UKATT): hypotheses, design and methods.
The United Kingdom Alcohol Treatment Trial (UKATT) is intended to be the largest trial of treatment for alcohol problems ever conducted in the UK. UKATT is a multicentre, randomized, controlled trialExpand
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  • 4
PPF Control of a Piezoelectric Tube Scanner
TLDR
A Positive Position Feedback controller is designed to mitigate the undesired mechanical resonance. Expand
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Passive vibration control via electromagnetic shunt damping
This work will present a new type of passive vibration control technique based on the concept of electromagnetic shunt damping. The proposed technique is similar to piezoelectric shunt damping, as anExpand
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Three new species of Trigonospila Pokorny (Diptera: Tachinidae), from Area de Conservación Guanacaste, northwestern Costa Rica, with a key for their identification
Abstract We describe three new species of Trigonospila Pokorny (Tachinidae: Blondeliini) from Area de Conservación Guanacaste (ACG), northwestern Costa Rica. All were reared from various species ofExpand
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Evaluation of charge drives for scanning probe microscope positioning stages
Due to hysteresis exhibited by piezoelectric actuators, positioning stages in scanning probe microscopes require sensor-based closed-loop control. Although closed-loop control is effective atExpand
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High-speed serial-kinematic AFM scanner: Design and drive considerations
TLDR
In this paper, we describe the design of a flexure guided, two-axis nanopositioner driven by piezoelectric stack actuators. Expand
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Seven new species of Spathidexia Townsend (Diptera: Tachinidae) reared from caterpillars in Area de Conservación Guanacaste, Costa Rica
Abstract We describe seven new species of Spathidexia (Diptera: Tachinidae) reared from Area de Conservación Guanacaste (ACG), northwestern Costa Rica. All were reared from various species of ACGExpand
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A new species of Cordyligaster Macquart, reared from caterpillars in Area de Conservacion Guanacaste, northwestern Costa Rica
Abstract We describe a new species of Cordyligaster Macquart (Diptera: Tachinidae) from Area de Conservacion Guanacaste (ACG) in northwestern Costa Rica. Cordyligaster capellii sp. n., is describedExpand
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Nine new species of Itaplectops (Diptera: Tachinidae) reared from caterpillars in Area de Conservación Guanacaste, northwestern Costa Rica, with a key to Itaplectops species
Abstract Nine new species of Itaplectops Townsend (Diptera: Tachinidae) are described from Area de Conservación Guanacaste (ACG), northwestern Costa Rica. All specimens have been reared from variousExpand
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