Hall-effect thrusters (HETs) are a type of ion thruster where the propellant is accelerated using an electric field. Studied since the 1960s, their primary application is for satellite positioning and ...
Jazz Mandolin Project will play its first extended run of shows in 22 years with a four-show, February 2026 tour of the Northeast. The Burlington, VT experimental jazz fusion ensemble, founded by ...
Abstract: Track quality and train operating safety depend on routine inspections of track components. According to statistics from the Federal Railroad Administration (FRA), train accidents in the ...
Abstract: change of blood glucose (BG) level stimulates the autonomic nervous system leading to variation in both human’s electrocardiogram (ECG) and photoplethysmogram (PPG). In this article, we ...
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