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, ...

Shell Earnings: Strong Trading Performance Boosts Earnings, Lower Debt Keeps Payouts Intact Shell is an integrated oil and gas company that explores for, produces, and refines oil around the world. In ...

The Shell logo, or "Pecten," is one of the world's most recognised symbols. But it wasn't born that way. It was forged through a century of ruthless simplification. Forget "timeless" design—the real ...

Royal Dutch Shell PLC is an integrated oil and gas company. The company engages in exploration, production, and refining of oil around the world. It supplies fuel and other chemicals to various ...