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The high frequency resonant current in coupler would inevitable results in interaction of electromagnetic force (EMF), leading to short service life, poor security and low reliability of wireless power transmission (WPT). It may be worse when electromagnetic shielding (EMS) materials are used. The mechanism and characteristics of the EMF on various EMS materials are revealed. Based on Lorentz force...
Supercavitation is an emerging technology that enables underwater vehicles to reach unprecedented speed. The surface of underwater high-speed vehicle is surrounded by water vapor cavity while sailing in the water. When the tail of the underwater high-speed vehicle interacts with the cavity wall, the nonlinear planing force is produced. We analyze the forces acting on the underwater high-speed vehicle,...
The haptic interface enables an operator to feel remote environment via Internet. However there is uncertain delay time via Internet, the feedback information can’t be gotten by the haptic interface in time. The speed of the sampling and calculation in the interface device is faster than the speed of the information feedback from the remote robot. So it is difficult for an operator to feel the force...
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