Janice M. Tarrant

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Myopic observers may not benefit to the same extent as emmetropes from adaptive optics (AO) correction in a visual acuity (VA) task. To investigate this, we measured AO-corrected VA in 10 low myopes and 9 emmetropes. Subjects were grouped by refractive error. Mean spherical equivalent refractive error was -2.73 D (SEM = 0.35) for the myopes and 0.04 D (SEM(More)
The purpose of this study was to evaluate some of the methods used to calculate objective refractions from wavefront aberrations, to determine their applicability for accommodation research. A wavefront analyzer was used to measure the ocular aberrations of 13 emmetropes and 17 myopes at distance, and 4 near target vergences: 2, 3, 4, and 5 D. The(More)
i Executive summary Proton accelerators have served for more than 60 years at the forefront of scientific investigation across an immense range of disciplines. The world-leading ISIS neutron-spallation source at the Rutherford Appleton Laboratory (RAL) serves an international community of more than 1000 scientists in studies that include investigations of(More)
Executive summary Muon storage rings have been proposed for use as sources of intense high-energy neutrino beams in a Neutrino Factory and as the basis of a multi-TeV lepton-antilepton colliding-beam facility, the Muon Collider. To optimize the performance of such facilities requires the phase-space compression (cooling) of the muon beam prior to(More)
The ATLAS SemiConductor Tracker (SCT) is a silicon-strip tracking detector which forms part of the ATLAS inner detector. The SCT is designed to track charged particles produced in proton-proton collisions at the Large Hadron Collider (LHC) at CERN at an energy of 14 TeV. The tracker is made up of a central barrel and two identical end-caps. The barrel(More)
An adaptive controller is developed for adjusting robot arm parameters while manipulating payload_of-unknown moss and inertia. The controller is tested experimentally in a masterlslave configuration where the adaptive slave arm is commanded via human operator inputs from a master. Kinematically similar six-joint master and slave arms are used with the last(More)
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