Marathon Petroleum Corp's valuation metrics indicate a mixed trend, with EV/EBITDAslightly improving to 8.84xin Q3 2025 while Price-to-Bookrose to 3.43x. However, profitability metrics show a decline ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for ...

Abstract: To address the issues of power angle instability and oscillations in grid-forming Modular Multilevel Converter (MMC) stations caused by AC grid voltage sags in flexible HVDC transmission ...

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