Abstract: Aiming at the complex mechanical characteristics of the curvic coupling in the aero-engine rotor under operation condition, the contact stiffness model of the curvic coupling under the ...
Abstract: There is a growing number of studies on the traffic control strategies of signal timings and vehicle trajectories at signalized intersections, while lane assignments are widely pre-specified ...
A new study finds North American bird populations keep dropping, and that decline is speeding up for many species.
NEW YORK (AP) — Humans and Neanderthals cozied up from time to time when they lived in the same areas tens of thousands of years ago. But we don't know much about who got with whom, or why. A new ...
NEW YORK (AP) — Humans and Neanderthals cozied up from time to time when they lived in the same areas tens of thousands of years ago. But we don't know much about who got with whom, or why. A new ...
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