in this paper, modi cation of the optimal homotopy asymptotic method (moham) is appliedupon singular initial value lane-emden type equations and results are compared with the available exactsolutions. the modi ed algorithm give the exact solution for dierential equations by using one iterationonly.

In this paper, the conventional level set methods are extended as an effective approach for shape and topology optimization by the introduction of the radial basis functions (RBFs). The RBF multiquadric splines are used to construct the implicit level set function with a high level of accuracy and smoothness and to discretize the original initial value problem into an interpolation problem. The...

In this paper, bending analysis of concentric and eccentric beam stiffened square and rectangular plate using the meshless collocation method has been investigated. For detecting the governing equations of plate and beams, Mindlin plate theory and Timoshenko beam theory have been used, respectively, with the stiffness matrices of the plate and the beams obtained separately. The stiffness matric...

In this paper we describe and justify a method for integrating over implicitly de ned curves. This method does not require that the Jacobian be known explicitly. We give a proof of an asymptotic error expansion for this method which is a modi cation of that of Lyness [4]. c © 1999 Elsevier Science B.V. All rights reserved. AMS classi cation: 65

The strategic logistics of agricultural production and storage aggregates information related to storage. In this sense, time, location, distance from producer consumer markets are considered, emphasizing the importance grain logistics. Natural Neighbor multiquadric equation spatial interpolation methods used predict these variables value at non-sampled locations, for asymmetric categorical dat...

In this paper, the development and application of radial basis function-finite difference (RBF-FD) method RBF-finite time domain (RBF-FDTD) for solving electrical transient problems in power systems that are defined by time-dependent ordinary differential equations (ODEs) partial (PDEs), respectively, presented. RBFs such as Gaussian (GA), Multiquadric (MQ), Inverse Quadric (IQ), (IMQ) used the...

A new multilayer preceptor initialization method is proposed and compared experimentally with a traditional random initialization method. An operator maps training-set vectors into a two-variate space, inspects bi-variate training-set vectors and controls the complexity of the decision boundary. Simulations with sixteen real-world pattern classi®cation tasks have shown that in small-scale patte...

This paper is concerned with the veri cation of knowledge-based systems for a task called program supervision (PS). Our aim is to highlight how the model on which a particular PS system is based in uences the properties that the knowledge base must ful l. Adopting this point of view allows us to go beyond veri cation techniques that do not exploit the intended use of the embodied knowledge. We ...

We present a new structuring and veri cation method for distributed algo rithms The basic idea is that an algorithm to be veri ed is stepwise transformed into a high level speci cation through a number of steps so called coarsements At each step some mechanism of the algorithm is identi ed and removed while the basic computation of the original algorithm is preserved Only the essential parts of...