نتایج جستجو برای: multi fractal model

تعداد نتایج: 2476412  

2015
Julian C. Aririguzo Sameh M. Saad

A dynamic and optimal shop floor design, modelling and implementation is key to achieving successful Fractal Manufacturing System (FrMS). To build adaptive and fault-tolerant fractal layout, attention is paid to issues of shop floor planning, function layout, determination of capacity level, cell composition planning and flow distances of products. A full fledged FrMS. layout is multi-functiona...

Journal: :فصلنامه بین المللی مطالعات اقتصاد و مدیریت 0
hassan rangriz mahsan esmaeilzadeh tarei

abstract purpose - the aim of this paper is to describe the population ecology theory through fractal thinking, an emergent human operating system that is creative, adaptive, healthy, and evolutionary; furthermore, a parallel is drawn between the population ecology model and the fractal structure. top-down hierarchies are typically characterized by command and control systems of the authority t...

2009
Yong Ma

Velocity models used for wavefield-based seismic imaging represent approximations of the velocity characterizing the area under investigation. The real subsurface velocity can at best be approximated by the combination of a known background velocity and unknown multi-scale heterogeneities. Here, we model the multi-scale heterogeneity assuming a fractal behavior and compare this type of heteroge...

2004
D. J. Cornforth H. F. Jelinek M. C. Teich S. B. Lowen

Automated classification is a well established technique for pattern recognition. In this work, the focus is upon testing for detectable differences between categories, rather than upon building a model for predicting category from new data. We applied image processing and pattern recognition techniques to determine whether there are differentiating features in the structure of blood vessels of...

1997
Donald M. Monro Paul D. Wakefield

One advantage of fractal image compression schemes is their multiresolution properties. An image can be decoded at higher or lower resolutions than the original, and it is possible to 'zoom-in' on sections of the image. Even so the problem of fractal zooming has received very little attention. In this paper we examine these multi-resolution properties. We study the problem of fractal zooming in...

Journal: :E3S web of conferences 2021

Based on the capillary hypothesis and fractal theory, a mathematical model for calculating effective gas diffusion coefficient in porous media is established. By using geometry pore area dimension, tortuosity dimension connectivity are introduced to quantitatively characterize real internal structure media. An derived, influence of multi-scale microstructure parameters discussed. The results sh...

Alireza Hashemi Moladad Nikbakht, Serviyeh Ahmadian

Heat transfer by electromagnetic radiation is one of the common methods of energy transfer between objects. Using the fluctuation-dissipation theorem, we have studied the effect of particle arrangement in the transmission of radiative heat in many-body systems. In order to show the effect of the structure morphology on the collective properties, the radiative heat transfer is studied and the re...

Journal: :I. J. Bifurcation and Chaos 2005
Charlotte Yuk-Fan Ho Bingo Wing-Kuen Ling Joshua D. Reiss Xinghuo Yu

⎯It has been established that the class of bandpass sigma delta modulators (SDMs) with single bit quantizers could exhibit state space dynamics represented by elliptic or fractal patterns confined within trapezoidal regions. In this letter, we find that elliptical fractal patterns may also occur in bandpass SDMs with multi-bit quantizers, even for the case when the saturation regions of the mul...

Journal: :IJMDEM 2010
Ramakrishnan Mukundan Anna Hemsley

Tissue image classification is a challenging problem due to the fact that the images contain highly irregular shapes in complex spatial arrangement. The multi-fractal formalism has been found useful in characterizing the intensity distribution present in such images, as it can effectively resolve local densities and also represent various structures present in the image. This paper presents a d...

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