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Power system equipment manufacturers and researchers continue to experiment with novel overhead electric conductor designs that support better conductor performance and address congestion issues. To address the technology gap in testing these novel designs, Oak Ridge National Laboratory constructed the Powerline Conductor Accelerated Testing (PCAT) facility to evaluate the performance of novel overhead...
Synchronized phasor measurements can reveal important insights about the health and stability of the power grid in near-real time. Unfortunately, the high cost associated with the installation of phasor measurement units (PMUs) has limited their adoption in the electric utility industry. The Frequency Monitoring Network (FNET) was created to provide low-cost, high-accuracy frequency and voltage phase...
Purpose: To compare the accuracy of two immobilization techniques for pediatric brain tumor patients.Methods and Materials: We analyzed data from 128 treatments involving 22 patients. Patients were immobilized with either a relocatable head frame (12 patients) or a vacuum bag (10 patients). Orthogonal portal films were used as verification images. Errors in patient positioning were measured by comparing...
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