HackerRank offers a good amount of free coding challenges and practice problems for individuals looking to hone their skills. While basic access is free, HackerRank has premium features and ...
Abstract: This paper begins by analyzing the fundamental principles of low-frequency power transmission, establishing mathematical models for both the low-frequency and power-frequency sides of the ...
Abstract: Time-frequency based digital protective relays can offer several advantages of high accuracy, improved reliability, and fast response over other protective relays. These protective relays ...
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China College of Geosciences, China University of Petroleum (Beijing), Beijing ...
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