Based on the text you provided, here are the most likely meanings, as "eess top" appears to be an acronym or a typo:
: An extensive overview of the transition toward all-electric and hybrid-electric aircraft, featuring case studies on the Boeing 787 and NASA X57. Review, Definition and Challenges of Electrical Energy Hubs eess top
When researchers search for "EESS top journals," they are typically looking for the in these categories. Based on the text you provided, here are
: This includes low-voltage equipment rated between AC RMS, or ripple-free DC. Based on the text you provided