You’re in the market for a “Gizmo.” A shop has five Gizmos available to buy, but the shopkeeper has bad news: two of them are malfunctioning, and she doesn’t know which ones are working and which ones ...

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Abstract: This article aims to improve the control performance for the air–sea heterogeneous system consisting of multi uncrewed aerial vehicles (UAVs) and an uncrewed surface vehicle (USV) by means ...

Abstract: To improve the trajectory tracking performance of unmanned surface vehicle (USV), this article investigates the USV optimal control problem with the consideration of actuator wear. In the ...

Anyone with a chronic illness understands the struggle of living with a disease that is deeply unpredictable. Many such illnesses are characterized by long periods of remission broken up by sudden, ...

Cape Hatteras Secondary School’s Number Games Math Team. Nearly 50 middle school students from across Dare County Schools came together March 11 for the district’s first-ever Numbers Game Math ...

Tristan Jurkovich began his career as a journalist in 2011. His childhood love of video games and writing fuel his passion for archiving this great medium’s history. He dabbles in every genre, but ...

Learn how to add or subtract radicals. A radical is a number or an expression under the root symbol. Radicals can only be added or subtracted if the numbers or expressions under the roots are the same ...

👉 Learn how to solve rational equations. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. There are many ...