in this paper, a new algorithm for system identification based on frequency response is presented. in this method, given a set of magnitudes and phases of the system transfer function in a set of discrete frequencies, a system of linear equations is derived which has a unique and exact solution for the coefficients of the transfer function provided that the data is noise-free and the degrees of...

the present study was conducted in the rangeland of glandrood watershed in the province of mazandaran. the objective of this study was to compare between the ecological amplitude of festuca ovina l., and poa bulbosa l., using the function hof along the gradient of the environmental variables. for this purpose 150 plots of 1m2 were established along the altitude gradient. the sampling method was...

Purpose: the transformation of marriage patterns and family formation by following transition from traditional society to a modern society causes changes in goals, function of family formation. The aim of this study was comparative investigation of the attitudes of single and married individuals about marriage function. Materials and method: the study performed by qualitative method. The statis...

in the response phase the most important step is to assess disaster after occurrence. by disaster assessment, we can obtain all the needed information for controlling, decision-making and also disaster planning. lack of disaster assessment causes you to make unsuitable decisions ba sed on limited or inadequate data which leads to imperfect disaster response. according to ifrc, disaster response...

Motivated from the central role of mean-square displacement and its second time-derivative -- that is velocity autocorrelation function $\left\langle v(0)v(t)\right\rangle=\frac{1}{2} \frac{\mathrm{d}^{2} \left\langle \Delta r^{2} (t)\right\rangle}{\mathrm{d}t^{2}} $ in description Brownian motion, we revisit physical meaning first particles. By employing a rheological analogue for show $\frac{...