Most ship engines prefer to run at a steady RPM, so how do you slow down, stop, or go backwards? The answer is in the blade angle, and it changes everything about how the vessel handles.

Aviation is inseparably linked to the chase of speed. Since the first days of the powered flight, engineers and pilots have ...

Without a power source and propellers, cruise ships would drift aimlessly at sea. These mega-ships require engines, fuel, and massive propellers just to move through the water and keep all activities ...

Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10607, Taiwan Advanced Research ...

Abstract: To address the weak generalisation and anti-interference capability of the current intelligent detection model of the shaft system, this paper innovatively proposes a method for diagnosing ...

Abstract: The efficiency of autonomous unmanned underwater vehicles (AUVs) is determined by the maximum range of their movement when performing a route task, which depends on the energy capacity of ...

A tall person usually swims faster than a short one thanks to the more pronounced increase of hydrodynamic thrust with height relative to fluid drag in inertia-dominated flows. However, this general ...

From an endearing TikTok trend to the dreadful AI parodies that have inundated social media over the past few months, it seems the general public had embraced 2023 as the year of Wes Anderson before ...

Future naval warfare has placed high demands on underwater targets’ target detection, target recognition, and opposition resistance, among other things. However, the ocean’s complex underwater ...

This work proposes a subwavelength porous meta-liner with broadband sound absorption from 900 to 1,200 Hz. The meta-liner consists of four subunits, which are made up of porous material and hollow ...