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This book presents an overview of formulas to model transients in cable systems based on complete solutions of Maxwell's equations. It presents solutions to particularly model important high frequency phenomena. The impedance and admittance at a very low frequency for HVDC systems are investigated.
Electromagnetic transient (EMT) simulations in power systems have become an important tool for both research and practical applications. EMT-type simulation tools require overhead line/cable and underground cable models which are based on the calculation of series impedance and shunt admittance parameters. These parameters are calculated using the input of transmission system geometrical data and physical parameters. An important aspect in the calculations is formulation of earth-return impedance and admittance. As a first step in this thesis, new and generalized earth-return impedance and admittance formulas of overhead lines and underground cables are derived based on Maxwell equations wit...
Dong Haoyan picked up his son and gave him a kiss. Han Yiping stood off to the side, smiling blissfully as she immersed herself in the warmth of home.It didn't matter if Dong Haoyan was right or wrong. All of the past injuries, all of his betrayals, all of his deceit, had all been forgotten by time the moment he sacrificed himself for Han Yiguang.Han Yiguang loved him a lot, but she would always love him because Dong Haoyan had already settled into her heart. No matter what Dong Haoyan did, he was now Han Yiguang's husband, and there was no longer any hatred between them. These things, even if it was a test for two people, the price would be too heavy.
The Man Under the Skirt: The Way of the I
A car accident had caused her to become a wisp of a green soul, but it had actually attached itself to the body of a young lady of an official. "Since I'm here, I might as well settle down." Fang Zijun consoled himself. She received a piece of news that caused her to be stunned with her eyes wide open. One month later, they would be entering the palace for the talent show? With her title of doctor returning to the country, it shouldn't be too arduous for her to stay in the palace for three years! It was a pity that his luck had made a fool of him and offended someone he shouldn't have. "Woman, if you can't cure This King's illness, don't even think of leaving!" The man's sinister gaze, takin...
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The multi-volume set LNAI 12975 until 12979 constitutes the refereed proceedings of the European Conference on Machine Learning and Knowledge Discovery in Databases, ECML PKDD 2021, which was held during September 13-17, 2021. The conference was originally planned to take place in Bilbao, Spain, but changed to an online event due to the COVID-19 pandemic. The 210 full papers presented in these proceedings were carefully reviewed and selected from a total of 869 submissions. The volumes are organized in topical sections as follows: Research Track: Part I: Online learning; reinforcement learning; time series, streams, and sequence models; transfer and multi-task learning; semi-supervised and f...
In Geopolitics in Health, Eduardo J. Gómez takes a critical look at how the emerging BRICS economies dealt with the obesity, AIDS, and tuberculosis epidemics. Despite the countries having similar international political and economic ambitions, Gómez finds that domestic policy responses were driven mainly by international, as opposed to domestic, pressures and interests. Using a theoretical framework called geopolitical positioning, Gómez explores how nations respond to international pressures and policy criticisms, as well as offers of financial and technical assistance; countries then utilize domestic policy innovations and ultimately engage in global health diplomacy in order to bolster their international reputation. --Publisher description.
This three-volume set, LNAI 13031, LNAI 13032, and LNAI 13033 constitutes the thoroughly refereed proceedings of the 18th Pacific Rim Conference on Artificial Intelligence, PRICAI 2021, held in Hanoi, Vietnam, in November 2021.The 93 full papers and 28 short papers presented in these volumes were carefully reviewed and selected from 382 submissions. PRICAI covers a wide range of topics in the areas of social and economic importance for countries in the Pacific Rim: artificial intelligence, machine learning, natural language processing, knowledge representation and reasoning, planning and scheduling, computer vision, distributed artificial intelligence, search methodologies, etc. Part I includes the following topical headings: AI Foundations / Decision Theory, Applications of AI, Data Mining and Knowledge Discovery, Evolutionary Computation / Optimisation, Knowledge Representation and Reasoning.