Abstract: In communications between ground stations and vehicles, including launch vehicles and satellites, radio waves are bent owing to the vertical gradient of atmospheric refractivity. The ...
Garmin (NYSE: GRMN) today revealed the Approach® G82 — launch monitor and top-notch GPS handheld — the seamless golf tool with expanded radar metrics that help golfers dial in their swing and ...
Objective: This study aimed to systematically review and meta-analyze the effects of acute high-altitude exposure on heart rate variability (HRV), in order to elucidate the adaptive changes of the ...
Abstract: High-altitude long-endurance (HALE) solar-powered unmanned aerial vehicles (UAVs) have outstanding advantages in military and civilian fields. In view of the energy management problem of ...
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