an almost optimal control design method for nonlinear time delay systems

Ngày tải lên: 28/06/2014, 13:49

... augmented Lagrangian method to deal with the problems addressed there. Correa and Ramirez 20042 systematically studied an SQP-type method for solving nonlinear SDP problems and analyzed the convergence ... stability control, ” Optimization Methods & Software, vol. 19, no. 5, pp. 595–609, 2004. 5 D. Sun, J. Sun, and L. Zhang, “The rate of convergence of the augmented Lagrangian method for nonlinear ... con- vergence of the classical augmented Lagrangian method and Noll 20076 investigated the convergence properties of a class of nonlinear Lagrangian methods. In Section 2, we introduce preliminaries...

Ngày tải lên: 22/06/2014, 18:20

... Access An improved spectral homotopy analysis method for solving boundary layer problems Sandile Sydney Motsa 1 , Gerald T Marewo 1 , Precious Sibanda 2 and Stanford Shateyi 3* * Correspondence: stanford. shateyi@univen.ac.za 3 Department ... engineering and science phenomena, many authors traditionally resort to numerical methods such as finite dif- ference methods [12], Runge-Kutta methods [13], finite element methods [14] and spectral methods ... of 9 decomposition method [15-17], differential transform method [18], variational iteration method [19], homotopy analysis m ethod (HAM) [20-23], and the spectral-homotopy analysis (SHAM) (see...

Ngày tải lên: 21/06/2014, 02:20

... arising in mechanics, elasticity theory, molecular dynamics, and quantum mechanics can be described by doubly nonlinear problems. The literature on the subject of local in time doubly nonlinear evolution ... Rothe–Galerkin’s method for a nonlinear integro differential equation Abderrazek Chaoui ∗ and Assia Guezane-Lakoud Laboratory of advanced materials, Badji Mokhtar University, Annaba, Algeria ∗ Corresponding ... of doubly nonlinear and degenerate parabolic problems by relaxation schemes. Math. Model. Numer. Anal. 29(5), 605–627 (1995) [4] Showalter, RE: Monotone operators in Banach space and nonlinear...

Ngày tải lên: 21/06/2014, 17:20

... iterations, and computation time than the other it- erative methods. The SNR achieved in AALR method is less thanForWaRDandRI( ≈ 1 dB). This is due to the fact that in the ForWaRD and the RI, ... convergence and high-computational cost. The simplicity and ease in implementation and computa- tion of LR method make it preferable among all the nonlinear methods for many applications. Many techniques ... comparison to that of LR method, for both experiments. It is clear that the performance of the proposed AALR method is consis- tently better than the LR method. In Figures 5(a),and5(b), it can be seen that...

Ngày tải lên: 22/06/2014, 00:20

... biosciences and control theory. Any system involving a feedback control will almost always involve time delays. These arise because a finite time is required to sense information and then react ... 4.2 and consequently ω N 0  m  p1 ω N,p . 4.3 To simplify the notation, we set g i  gt i  for any function gt, and moreover y i denotes an approximation of ut at t i . For any mesh ... “Difference method for the solution of one problem of the theory dispersive waves,” Differentsial’nye Uravneniya, vol. 26, pp. 2146–2154, 1990. 11 G. M. Amiraliyev and F. Erdogan, “Uniform numerical method...

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Ngày tải lên: 14/08/2014, 07:21

... of errors, and procedures to invert the error process, an "explanation" for an ill-formed utterance could be generated in the form of an intended well-formed utterance and a sequence ... that can handle well-formed input efficiently and ill-formed input effectively. 3. Architectural issues In order to design a fault-tolerant language processing system, it is important to ... non-normative language understander can be viewed as one of finding a "sufficiently good explanation" for an utterance in the given context. ~ A number of approaches to this problem can be...

Ngày tải lên: 24/03/2014, 01:21

... Bellen and M. Zennaro, Numerical Methods for Delay Differential Equations, Numerical Mathematics and Scientific Computation, Oxford University Press, Oxford, UK, 2003. 4 Y. K u ang , Delay Differential ... Mackey and L. Glass, “Oscillation and chaos in physiological control systems, ” Science, vol. 197, no. 4300, pp. 287–289, 1977. 8 G. M. Amiraliyev and F. Erdogan, “Uniform numerical method for ... r p−1 <t≤ r p },1≤ p ≤ m, and r s  sr ,for0 ≤ s ≤ m and I 0 −r, 0.0<ε≤ 1 is the perturbation parameter, and r>0 is a constant delay, which is independent of ε. at, ϕt, and ft, v are given...

Ngày tải lên: 21/06/2014, 07:20

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Ngày tải lên: 13/08/2014, 21:21

... cancellation inherent in the design methodology. 1,4-4 Dominant Pole Design: The Cohen-Coon Method Dominant pole design attempts to position a few poles to achieve certain control performance ... of Discrete -Time Plants 67 4.4 Notes and References 75 Preliminary Results for Analyzing Systems with Time Delay 77 5.1 Introduction 77 5.2 Characteristic Equations for Delay Systems 78 5.3 ... disturbance rejec- tion, and the third, robustness of the system. The simultaneous satisfaction of (1), (2), and (3) is called robust tracking and disturbance rejection and control systems designed...

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Ngày tải lên: 06/07/2014, 21:20

... Bertsekas and R. Gallager, Data Networks, Prentice Hall, Englewood Cliffs, NJ, USA, 2nd edition, 1992. [6] A. Harrel, “Sharp bounds and simple approximations for the Erlang delay and loss formulas,” Management ... approximation of the Erlang B formula. We then use it for a proportional differentiated admission control implementation and consider some alter- native problem statements for an admission control policy. In ... the problem and offer an efficient nonasymptotic method for implementation of proportional differentiated admission control. 1. Introduction Efficient implementation of admission control mechanisms is...

Ngày tải lên: 21/06/2014, 05:20

Ngày tải lên: 26/05/2013, 21:28

... evaporative systems, considering both the advantages and disadvantages and indicating and establishing some basis about their design, was developed by Dr. John R. Watt, who worked for the Research ... made of ceramic material, another device mainly made of wet textile band has been designed, manufactured and characterised. It is basically a cotton band of 25 cm width and 1600 cm length, disposed ... reserved. 85 4.4.2 Advantages and disadvantages The main advantages of evaporative coolers are their low cost and high effectiveness, permitting a wide range of applications and versatility in...

Ngày tải lên: 05/09/2013, 16:10

Ngày tải lên: 05/09/2013, 16:10