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In this paper, a robust sliding mode control is used to control an autonomous underwater vehicle. The modeling of the autonomous underwater vehicle with structure uncertainties is conducted. Sliding mode control (SMC) has robustness property in the environmental disturbances and uncertain parameters. The asymptotic tracking performance can be verified by the Lyapunov stability. The proposed control...
The present study provides the methods of preparing organic/inorganic hybrid nanofiber mats. A simple process was developed in preparing polyacrylonitrile/kaolinite hybrid nanofiber mats based on electrospinning technology. The electrospinning of sub-nano kaolinite particles-contained PAN suspensions resulted in uniform distribution of kaolinite particles among the PAN nanofibers, which was demonstrated...
Fine and continuous composite medicated PAN/PVP fibers were prepared using wet spinning processes. The co-dissolving method was employed to prepare the spinning solution. The prepared fiberts had a diameter of 145 plusmn 17 mum. SEM images showed that the libers had a uniform and homogeneous structure with some nano drug particles aggregated on the fiber surface. X-ray diffraction analysis result...
Through both algorithmic and architectural optimization, the H.264 video decoder dissipates 320mW at 1.8V when operating at 120MHz for HD1080 (1920times1088 at 30frames/s). The die contains 160kgates 4.5kB memory and occupies 2.9times2.9mm2 in 0.18mum CMOS
Rapid prototype (RP) manufacturing has been widely used in industry, including prototype fabrication, product assembly test, mechanism interference test, and rapid tooling. Some researchers have been focusing on the RP applications for functional part fabrication in recent years. One of the most challenge research topics in RP is the heterogeneous object fabrication, particularly in the graded material...
The morphologic analyses of ECG waveforms have been used often by physicians. A robust ECG delineator that can identify the characteristic points under different kinds of diseases with various noise interferences is crucial in clinical ECG waveform analyses. In this study, hybrid wavelet transforms (WT) were used to develop a tool for ECG delineation. The decomposed detail levels of d4 and d3 based...
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