1 Supported by the Nuclear Physics Division of the U. S. Dept. of Energy through the SBIR Program 2 E-mail: [email protected] Abstract Energen, Inc. has developed and demonstrated an SRF cavity tuning mechanism based on magnetic smart materials. Magnetic “smart” materials change their shape in a reversible and repeatable manner when exposed to a small magnetic field. A fine-tuning mechanism w...

This paper presents an approach for designing a fuzzy logic-based adaptive SVC damping In controller for damping low frequency power oscillations. Power systems are often subject to low Frequency electro-mechanical oscillations resulting from electrical disturbances. Generally, power system stabilizers are designed to provide damping against this kind of oscillations. Another means to achieve d...

The brain requires task-dependent interregional coherence of information flow in the anatomically connected neural network. However, it is still unclear how a neuronal group can flexibly select its communication target. In this study, we revealed a hidden routing mechanism on the basis of recurrent connections. Our simulation results based on the spike response model show that recurrent connect...

In the Dynamo project at UBC, we have developed an extensible facility for experimental mobile robotics. It currently consists of nine radio-controlled mobile robots, two CCD colour video cameras, a video transmitter and tuner, radio controllers, Datacube image processing hardware, and a network of transputers. Software for tracking, control, and simulation has also been developed. Ongoing proj...

We examine the performance of Total Variation (TV) smoothing for processing of noisy Electrocardiogram (ECG) recorded by an ambulatory device. The TV smoothing is compared with traditionally-used bandpass filtering using ECG with artificially added noise, as well as with real-world noise obtained during physiological monitoring. The fundamental difference between TV smoothing and traditional ba...

A tool for performance analysis of parallel programs implemented using the MPI message passing standard is presented. The paper discusses the way information about program execution is gathered, processed and visualized by the graphical front end of the tool. Emphasis is placed on demonstrating how the tool helps the tuner to reduce the volume of data that has to be examined and to relate the b...