Abstract: In this paper, the electromagnetic performance of variable flux memory (VFM) machines with series-magnetic-circuit is investigated and compared for different rotor topologies. Based on a ...

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Dianna Gunn built her first WordPress website in 2008. Since then, she's poured thousands of hours into understanding how websites and online businesses work. She's shared what she's learned on ...

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.

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Jessica Puckett is an Emmy Award-winning journalist who covers transportation and travel news. She has reported for ABC News, The Points Guy, Condé Nast Traveler, and several other publications.