Abstract: Single-phase ac/dc converters are popular in charging electric vehicle (EV) batteries due to their bidirectional power flow, electrical isolation, high efficiency, and benefits of power ...

The calculator on your Apple devices can do more than add, subtract, multiply and divide. Here's how it can help you with all kinds of math problems. Charlie Kirk shooting suspect Tyler Robinson ...

Abstract: To improve the efficiency of isolated bidirectional dc–dc converters for off-board dc charging over a wide voltage gain, such as dual active bridge (DAB) and inductor-inductor-capacitor (LLC ...

Copyright 2025 The Associated Press. All Rights Reserved. Copyright 2025 The Associated Press. All Rights Reserved. A decade-long slide in high schoolers’ reading ...

WASHINGTON (AP) — A decade-long slide in high schoolers’ reading and math performance persisted during the COVID-19 pandemic, with 12th graders’ scores dropping to their lowest level in more than 20 ...

American high-school seniors’ scores on major math and reading tests fell to their lowest levels on record, according to results released Tuesday by the U.S. Education Department. Twelfth-graders’ ...

WASHINGTON — A decadelong slide in high schoolers’ reading and math performance persisted during the COVID-19 pandemic, with 12th graders’ scores dropping to their lowest level in more than 20 years, ...

Florida’s surgeon general said Sunday that he had not weighed the cost – in terms of infections, hospitalizations or deaths – of ending vaccine mandates in his state. But scientists who have done ...

The billionaire heiress who recently donated $250,000 to a super PAC supporting socialist Zohran Mamdani’s NYC mayoral campaign is bankrolling a national push to bring “woke math” into public schools ...

If you’ve ever shuffled a deck of playing cards, you’ve most likely created a unique deck. That is, you’re probably the only person who has ever arranged the cards in precisely that order. Although ...

People are being urged to put bleach and hit water into all their sinks as their homes are at risk of a silverfish infestation in September. Bathroom experts have explained how to keep the bugs away ...