Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Abstract: Flow noise refers to the noise caused by the disturbance in the fluid mechanical turbulent boundary layer and the pulsating pressure on the wall surface, which is mainly generated in the ...

Within each content area, there are one or more tutorials. Each tutorial consists of lessons. Each lesson should be a page detailing the concept being taught, along with sample code. Lesson and page ...

To protect the propeller and gear box from damage in the event of a prop striking a rock or other hard object. To protect a person in the event they come into contact with a moving propeller. Some ...

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