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Test and theory for robust active vibration control of rotor- bearing systems utilizing piezoelectric actuators
(1993)
This research focuses on designing effective control strategies using piezoelectric actuators for control of vibrations of flexible rotor-bearing systems. The actuators are completely described and the elements of feedback ...
Announcements of stock repurchases during 1988 and 1989 : an empirical analysis examining the disclosure of intended open market repurchases
(1993)
A multi-method approach is used to examine firms that announced stock repurchases on the open market during 1988 and 1989. An event study methodology is used to determine the abnormal returns of these firms relative to ...
A numerical analysis of convective heat transfer in channels simulating electronic components
(1993)
The cooling performance of two dimensional channel flow simulating channels of electronic components has been studied numerically. A channel is formed with the substrates on which the heat sources are surface-mounted ...
Environmentally induced increases in pain reactivity
(1993)
Prior research has shown that an aversive event can produce either an increase (hyperalgesia) or a decrease in pain reactivity (hypoalgesia). Researchers have extensively examined both the behavioral and neurobiological ...
New power controllers and the cost analysis of designing mixed signal application specific integrated circuits
(1993)
Power Controllers in airborne Power Systems need to monitor system parameters, check for abnormal conditions and initiate action, while conserving area, weight and power. The new power controller designed also offers a ...
Microfabrication of an in-plane gated quantum wire using low energy ion damaging for pattern transfer
(1993)
A transmission electron microscope has been converted for electron beam lithography applications where computer control of the stage and electron beam are required. Supporting modifications and extensive software complete ...
The relationship of reading comphrehension and educational achievement levels to academy and field training performance of police cadets
(1993)
Law enforcement professionals have attempted to identify characteristics which will assist their agencies in hiring the most qualified individuals to become police officers. However, studies over the past twenty years have ...
Measures of capability under nonstandard conditions
(1993)
Capability indices measure the proportion of process output which lies outside two specification limits. The index, C[p], is used to quantify the potential of a process to stay within the specification limits. The indices, ...
Electrical-impedance spectroscopy of sedimentary rocks
(1993)
The electrical-impedance response of brine-saturated rocks is similar to the electrical-impedance responses of other ionically conducting solids in that they all exhibit small but constant phase angles at low frequencies. ...
The inverse electromagnetic scattering problem for a spatially homogeneous, dispersive and dissipative medium
(1993)
The study of the inverse scattering problem for electromagnetic waves, especially under consideration of such realistic effects as spatial inhomogeniety, dispersion, dissipativity and multiple spatial dimensions, is based ...