â â â â  reza roshan [1] â  department of economics, university of sistan and baluchestan , iran â  mosayeb pahlavani â  department of economics, university of sistan and baluchestan, iran â  mohammad nabi shahyaki tash â  department of economics, university of sistan and baluchestan, iran â  â â â  abstract â  consumption is the principal feature of iran’s gross national production. therefor...

considering the importance of adequate roughness coefficient estimation in river engineering studies, evaluation of image processing technique in estimating manning’s roughness coefficient in the surface layer of riverbeds carried out in this study. the mentioned approach evaluation conducted by implementing of sieving analysis and digital image processing methods simultaneously for a 7.5km rea...

A high fidelity simulation is preferred for its remarkable accuracy for engineering problems. However, it requires long computational time, which leads to significant overhead and eventually hinders its application to design study. To overcome such impediments, a reduced-order method is utilized. Reducedorder method can effectively represent a simulation output as a linear combination of a basi...

In this paper we present a novel approach to combining multiple kernels where the kernels are computed from different information channels. In contrast to traditional methods that learn a linear combination of n kernels of size m×m, resulting in m coefficients in the trained classifier, we propose a method that can learn n×m coefficients. This allows to assign different importance to the inform...

Natural convection is an important mode of heat transfer in many fields. Convection coefficient, Nusselt number Nu, is usually modeled as a function of Rayleigh number Ra, which describes the conditions that affect convection. Inclination and spacing are important parameters of stacked cylinders. Of the latest models for two-cylinder array includes both inclination θ and spacing d as parameters...

The W statistic proposed by Shapiro and Wilk ([2]) is frequently used for testing of the univariate and multivariate normality. However, the table of coefficients in the W statistic, its critical values and also constants in Johnson’s SB transformation to normal distribution ([3]), are not correct. Royston ([1]) gave an approximation for coefficients in the W statistic and use them to evaluate ...

Most conventional features used in speaker authentication are based on estimation of spectral envelopes in one way or another, e.g., Mel-scale Filterbank Cepstrum Coefficients (MFCCs), Linear-scale Filterbank Cepstrum Coefficients (LFCCs) and Relative Spectral Perceptual Linear Prediction (RASTA-PLP). In this study, Spectral Subband Centroids (SSCs) are examined. These features are the centroid...