A major excavation carried out in the ancient city of Aksum in northern Ethiopia has yielded stunning treasures from both the Roman empire and Aksumite kingdom, revealing a connection with the Romans ...
CHICAGO (AP) — Jacob Kiplimo of Uganda and Ethiopian Hawi Feysa won the men's and women's races at the Chicago Marathon by comfortable margins on Sunday. Kiplimo crossed the line in a personal-best ...
Abstract: The power coupling of the virtual synchronous generator (VSG) in the grid-connected mode may aggravate power oscillation because of a resistance-inductive line. In order to deal with this ...
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