The article presents the hybrid metaheuristic-neural assessment of the pull-off adhesion in existing multi-layer cement composites using artificial neural networks (ANNs) and the imperialist competitive algorithm (ICA). The ICA is a metaheuristic algorithm inspired by the human political-social evolution. This method is based solely on the use of ANNs and two non-destructive testing (NDT) metho...

Spectral warping is a technique that transforms a digital signal in the time domain by a warping of the frequency axis in its frequency representation. This corresponds to a mapping of the samples in the z-domain such that they are unevenly spaced around the unit circle. Spectral warping can be implemented with a network of linear all-pass filters. The Spectral Warping has a property that a tim...

The development of digital IIR (Infinite Impulse Response) filter is done on VIRTEX-6 FPGA using VHDL (Very High Speed Integrated Circuit Hardware Description Language) in XILINX Integrated Software Environment. IIR filter is analytically simulated by simulink environment in MATLAB. The digital data output of A/D converter is sent through IIR module in FPGA. Testing and debugging IIR module is ...

This paper motivates and develops a nonlinear extension of the Vector Autoregressive model which we call the Vector Floor and Ceiling model. Bayesian and classical methods for estimation and testing are developed and compared in the context of an application involving U.S. macroeconomic data. In terms of statistical signi ̄cance both classical and Bayesian methods indicate that the (Gaussian) li...

the aim of this paper is to investigate the existence of the new non-ricardian regime policy in iranian economy. we detected signs of the non-ricardian regime from quarterly data of 1369 to 1391. to investigate further a dynamic stochastic general equilibrium model is designed to estimate the fiscal and monetary parameters using a bayesian approach. our results indicated a passive monetary poli...

In this paper we provide further evidence and verify the existence of convolution relation between transient currents of gates of a sensitized path, power grid impulse responses and transient currents measured from chip power ports. Such a relation has important implications and applications in different aspects of current based testing and diagnosis techniques. We have also developed a new too...