David Gordon Wilson

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This paper develops a novel control system design methodology that uniquely combines: concepts from thermodynamic exergy and entropy; Hamiltonian systems; Lyapunov's direct method and Lyapunov optimal analysis; electric AC power concepts; and power flow analysis. Relationships are derived between exergy/entropy and Lyapunov optimal functions for Hamiltonian(More)
The nature of social support as measured by the Inventory of Socially Supportive Behaviors (ISSB) was explored in the study. The results of a principal components analysis suggest that it is appropriate to use the ISSB as a global measure of a unidimensional construct. The components that emerged were interpretable, however, and are consistent with the(More)
This paper<sup>1</sup> applies a novel nonlinear power flow control design to power engineering. The methodology [1], [2], [3] uniquely combines: concepts from thermodynamic exergy and entropy; Hamiltonian systems; Lyapunovpsilas direct method; Lyapunov optimal analysis; electric AC power concepts; and power flow analysis. Power engineering terminology is(More)
AIMS Limited data exist on outcomes in very elderly ICD recipients. We describe outcomes in new ICD and Cardiac Resynchronisation Therapy with Defibrillator (CRT-D) implants in octogenarians at our institution. METHODS Patients aged 80 years and above who underwent de novo ICD or CRT-D implantation from January 2006 to July 2012 were identified. Clinical(More)
The article contains data pertaining to the reconstruction of an 8-lead ECG from 2 subcutaneous implantable cardioverter defibrillator vectors. The location of electrodes on the precordium required for the data collection are detailed; the flow chart for patient selection and exclusion is shown; the summary data of the root mean square error (RMSE) (in(More)
OBJECTIVE To compare the biomechanical cyclic fatigue properties of 2 and 3 parallel transarticular 5.5 mm cortical screws used in arthrodesis of the proximal interphalangeal (PIP) joint. STUDY DESIGN Randomized block design, for horse, fixation method (2 versus three 5.5 mm cortical screws), side (right, left) and end (front, hind) in cadaveric equine(More)