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Although there are a lot of synchronization protocols in WSN, almost all of them face the same problem, that is, synchronization overhead has not been well controlled. The root of this problem is that they have adopted the same basic communication model- pairwise communication model. Increasing communication overhead in synchronization shortens the lifetime of the system and limits the wide application...
Resistances exert on the hull is changing erratically when an amphibious hovercraft sailing. So it is necessary to study nonlinear control means for amphibious hovercraft course control. Adaptive multiple model approach was applied to hovercraft course control. Multiple model sets were established, and work points were divided according to ship speed. Local controllers were designed for each work...
Vertical movement of buoyancy regulating cyanobacteria in wind-driven currents was simulated based on Lagrangian approach and a validated buoyancy regulation model. Turbulence of water was simulated using k-epsiv model. Effects of a range of wind speeds on cyanobacteria colonies of different sizes were discussed. Dispersion of colonies intensified as wind speed increased. Small colonies tended to...
Air cushion vehicle (ACV) is a type of high performance watercraft. ACV can be propelled forward over the water, the ground and swale. It is widely used in both the civilian and military. Its operation is very different from general ships because of the structural particularity. We designed PID controller and neural net (NN) controller used for ACV heading control. Simulation results show that NN...
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