The control of industrial robot manipulators presents a difficult problem for engineers due to the complexity dynamics models. Nonlinear controls based on feedback linearization are developed meet requirements. Model-based nonlinear is highly sensitive parameter errors and leads problems robustness tracking trajectories at high speeds, there additional heavy computational burden consider in des...

Aerodynamic drag force breakdown of a typical transport aircraft shows that lift-induced drag can amount to as much as 40% of total drag at cruise conditions and 80-90% of the total drag in take-off configuration. One way of reducing lift-induced drag is by using wing-tip devices. By applying several types of winglets, which are already used on commercial airplanes, we study their influence on ...

With the Lv’s distribution (LVD), the chirp rates of linear frequency modulated (LFM) signals can be more accurately estimated for the local polynomial periodogram (LPP). Comparing to the estimation methods based on the polynomial Fourier transform (PFT) and fractional Fourier transform (FrFT), it is shown that LPP with the chirp rate estimated by LV’s distributioneffectively obtains better per...

Followed by the popularity of the Internet, a number of access technologies to the Internet have been developed. EAP is an authentication framework. It is designed to provide the authentication functionality in the access network. Because of its flexibility and extensibility EAP poses a global solution for the authentication supported by many access networks. However, EAP has critical weaknesse...

A comparison of three methods for saving previously calculated fitness values across generations of a genetic algorithm is made. These methods lead to significant computational performance improvements. For real world problems, the computational effort spent on evaluating the fitness function far exceeds that of the genetic operators. As the population evolves, diversity usually diminishes. Thi...

The purpose of this guide is to provide the leadership team with generic but essentially practical advice on the use of benchmarking as a tool for continuous improvement in efficiency and performance. may be reproduced, stored or transmitted, in any form or by any means, only with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with t...