Long memory (long-term dependence) seems to be as widespread in financial time series as in nature. Inspired by the long memory property, Multi-fractal processes have recently been introduced as a new tool for modeling the stylized facts in financial time series. In this paper, we attempt to construct a bivariate multi-fractal model, and implement its estimation via both GMM and likelihood appr...

A Monte Carlo model of radiative transfer in multi-phase dusty media is applied to the situation of stars and clumpy dust in a sphere or a disk. The distribution of escaping and absorbed photons are shown for various filling factors and densities. Analytical methods of approximating the escaping fraction of radiation, based on the Mega-Grains approach [4], are discussed. Comparison with the Mon...

Abstract A new design of Microsrtip patch fractal antenna for 2.5 GHz is proposed which possess an excellent size reduction possibility with good radiation performance for wireless applications like Wireless Local Area Network (WLAN). The design and simulation results of microstrip patch fractal antenna using Ansoft HFSS is presented which has S11 < -10 dB (VSWR<2). The antenna is designed base...

The Zouzan area is located in the SE of Torbat-e- Heydarieh city (NE Iran). This area is located on north part of the Lut block which consists of basaltic andesite, tuff and porphyritic andesite. The purpose of this research is to investigate the enrichment of metal elements in the Zouzan area and provide a metallic geochemical model. For this purpose, 488 stream samples were analyzed using by ...

introduction the goal of research is investigation on the effectiveness of holistic multi-dimensional treatment model (hmtm) in improvement of cars test indicators in children with autism spectrum disorder (asd) and it is done without pharmaceutical interventions, without names and accompanied by parental satisfaction questionnaire. materials and methods in this study with purposeful sampling m...

In this paper we describe the design of a multiagent system based on simple interaction rules that can generate different overall behaviours, from asymptotically stable to chaotic, verified by the corresponding largest Lyapunov exponent. We show that very small perturbations can have a great impact on the evolution of the system, and we investigate some methods of controlling such perturbations...

This article presents a derivation of a new relative fractal dimension spectrum, DRq, to measure the dis-similarity between two finite probability distributions originating from various signals. This measure is an extension of the Kullback-Leibler (KL) distance and the Rényi fractal dimension spectrum, Dq. Like the KL distance, DRq determines the dissimilarity between two probability distibutio...

Aiming to solve the problem of distinction scrambled linear block codes, a method for identifying scrambling types codes by combining correlation features and convolution long short-term memory neural networks is proposed in this paper. First, cross-correlation characteristics sequence symbols are deduced, partial autocorrelation function constructed, superiority determined derivation, two comb...