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, ...

Hawksbills are named for their narrow, pointed beak. They also have a distinctive pattern of overlapping scales on their shells that forms a serrated look on the edges. These colored and patterned ...

Abstract: This paper presents the construction and control of a turtle-like underwater vehicle, which uses four single axis oscillation flippers for swimming and attitude control. The maneuvers are ...

Leatherback turtles are named for their shell, which is leather-like rather than hard, like other turtles. They are the largest sea turtle species and also one of the most migratory, crossing both the ...

If you’re looking for something fun and creative that’ll help you save money, why not make your own Christmas gifts this year? Handmade Christmas gifts are entirely unique and carry a personal touch; ...

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