March 12, 1844

Controlling Chaos 12 MARCH 1990

It is shown that one can convert a chaotic attractor to any one of a large number of possible attracting time-periodic motions by making only small time-dependent perturbations of an available system parameter. The method utilizes delay coordinate embedding, and so is applicable to experimental situations in which a priori analytical knowledge of the system dynamics is not available. Important ...

Modern Applied Science, ISSN 1913-1844, Vol. 2, No. 2,March 2008

ARFIMA models generated an enormous amount of interest in the literature about three decades ago. However, this interest vaned after Granger (1999) showed that an ARFIMA process might have stochastic properties that do not mimic the properties of the data at all. The empirical results of our research in which we used exchange rate data for the analysis, show that a variant of an ARFIMA process ...

Modern Applied Science, ISSN 1913-1844, Vol. 2, No. 2,March 2008

Modern Applied Science, ISSN 1913-1844, Vol. 2, No. 2,March 2008

This paper presents the use of angular position control approaches for a flexible robot manipulator with disturbances effect in the dynamic system. Delayed Feedback Signal (DFS), Linear Quadratic Regulator (LQR) and Proportional-Derivative (PD) controller are the techniques used in this investigation to actively control the vibrations of flexible structure. A constrained planar single-link flex...

Modern Applied Science, ISSN 1913-1844, Vol. 2, No. 2,March 2008

Porous GaP have studied and fabricated by using an argon-ion laser beam of energy 2.41 eV was to recording the Raman spectra. The peak position shifts in Raman spectra was observed at 398 cm after etching. The Raman line is broad and asymmetric in comparison to the Raman line for crystalline GaP of 402 cm. The weak structure near 350 cm is a forbidden TO phonon, which arises due to structural d...