Electric power system is undergoing major technological advances with many new installations of synchrophasors across the North American grid as well in power systems all over the world. Wide-area monitoring system (WAMS) in the Pacific Northwest and the Eastern Interconnection Phasor Project (EIPP) in the eastern grid are examples of such installations. Synchrophasors together with modern comm...

The fact that the electrical grid represents a critical and complex infrastructure has prevented it from experiencing major breakthroughs during decades. Therefore, some problems and inefficiencies have been carried around for a long while, up to the point that traditional electrical grid is far away from being prepared to face incoming challenges, such as properly integrating the foreseen high...

The damping of inter-area oscillations is an important problem in electric power systems (Klein et al., 1991; Kundur, 1994; Rogers, 2000). Especially in China, the practices of nationwide interconnection and ultra high voltage (UHV) transmission are carrying on and under broad researches (Zhou et al., 2010), bulk power will be transferred through very long distance in near future from the viewp...

If sexuality is as much a product of what goes on behind the eyes (in the brain) as between the legs, as modern theorization of the erotic suggests, then what our forebears knew, and what we as contemporary sexual actors know, or think we know, matters. This is the starting point for Roy Porter and Lesley Hall's lively and compendious study. Their subject is "sexual knowledge", but a simple phr...

handsome, lavishly illustrated, book promises answers to both qusestions. After moving to London at the age of nineteen, Sloane pursued early studies in chemistry and botany. Professionally inspired by Thomas Sydenham and philosophically influenced by John Ray, Robert Boyle and Joseph de Toumefort, Sloane took up medical practice as an ideal calling that allowed him to combine work and virtuosi...

Major disturbances in power system can take place after power system elements such as generators, loads, or transmission lines are suddenly disconnected. Such disturbances can create so called “electromechanical wave oscillations” waves which propagate through transmission lines at much lower speed than speed of light. They can cause adverse effect on power system protective relays. In this pap...

It is apparent that perturbations of the North American electric power grid follow the patterns and characteristics of Self Organized Critical (SOC) systems. Published studies show SOC systems exhibit statistical properties that may result in early warning systems predicting electric power instability and loss of reliability. However, in order for such an early warning system to exist, a truste...

s from the 1989 HOL Users Group Meeting Phillip J. Windley (Editor) Division of Computer Science Department of Electrical Engineering and Computer Science University of California, Davis December 14-15, 1989 Editor's Note The 1989 HOL User's Group Meeting was held December 14-15, 1989 at Trinity Hall College, Cambridge University. This document gives abstracts, prepared individually by the spea...