Groundbreaking water-driven gear works without teeth or direct contact

Scientists at New York University and NYU Shanghai have developed a new kind of gear that works without teeth or direct ...
IEEE

Model-Free Multiphase AC Signals Downscaling Method Using Orthogonal Phase-Lock Autoencoder and Circular Harmonic Decomposition

Abstract: Reference frame transformation methods are generally introduced in multiphase ac systems, so as to simplify system's high dimensional ac signals into low dimensional dc ones. Classical ...
IEEE

Optimum Frequency Hop Patterns Constructed on a Golomb Costas Array Using Two-Dimensional Circular Shift

Abstract: This study presents a comprehensive mathematical model for analyzing optimum frequency hop (FH) patterns (OFHPs) derived from two-dimensional circular shifts applied to a Golomb Costas array ...
WZDX

U.S. Army Space and Missile Defense Command gears up to track Santa’s journey over North America using radar systems

REDSTONE ARSENAL, Ala. — U.S. Army Space and Missile Defense Command at Redstone Arsenal is preparing to track Santa Claus during his annual journey across North America this Christmas Eve. Lt. Gen.
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Using your gears properly

Gears are essential for all bike riders, but are you using them properly? In this video we show you how to avoid cross chaining, how to prepare for steep hills, what the correct cadence is and all the ...