نتایج جستجو برای: fractal geometry

تعداد نتایج: 171537  

Journal: :مدیریت شهری 0
halime pudine

the subject of geometry and proportions has been regarded as an issue which has a close relationship with architecture. since the entire universe, living beings and the human geometry can be seen clearly, that’s why our unconscious essence has accustomed to these proportions whereby reflection of this mentality can be seen in the architect’s hands and thought in the architecture. it can witness...

ژورنال: مدیریت شهری 2016
Pudine, Halime ,

The subject of geometry and proportions has been regarded as an issue which has a close relationship with architecture. Since the entire universe, living beings and the human geometry can be seen clearly, that’s why our unconscious essence has accustomed to these proportions whereby reflection of this mentality can be seen in the architect’s hands and thought in the architecture. It can witness...

One of the related problems of OCR systems is discrimination of fonts in machine printed document images. This task improves performance of general OCR systems. Proposed methods in this paper are based on various fractal dimensions for font discrimination. First, some predefined fractal dimensions were combined with directional methods to enhance font differentiation. Then, a novel fractal dime...

Journal: :پژوهش های خاک 0
علی عطایی دانشجوی دکتری دانشگاه تبریز منوچهر گرجی دانشیار گروه علوم خاک دانشگاه تهران یحیی پرویزی استادیار مرکز تحقیقات کشاورزی کرمانشاه

a major concern of farmers is deterioration of the soil and water resources. soil management is the most direct way for mankind to interfere with natural processes that may either intensify or hinder soil degradation. fractal geometry has been widely used to describe heterogeneity in a wide range of natural processes, including physical systems of soil. in this study, the effects of different m...

Journal: :تاریخ علم 0
محمد مشایخی کارشناس ارشد معماری، مدرس دانشگاه علم و فرهنگ تهران فرهاد تهرانی دانشگاه شهید بهشتی تهران

in the classification of traditional domes, they are divided into two main categories: “roc” (cone-shaped) and “nār” (hemisphere-like) domes. urchīn domes are a sub-category of cone-shaped domes which were common in the past in the region of mesopotamia and southwest of iran. the fractal geometry is the best way to describe the geometrical structure of these domes, because the existence of self...

2014
Ankit Garg Akshat Agrawal Ashish Negi

Today Fractal geometry is completely new area of research in the field of computer science and engineering. It has wide range of applications. Fractals in nature are so complicated and irregular that it is hopeless to model them by simply using classical geometry objects. Benoit Mandelbrot, the father of fractal geometry, from his book The Fractal Geometry of Nature, 1982. This paper explor var...

Journal: :galen medical journal 0
seyedabbas mirmalek assistant professor of general surgery, azad university of medical sciences and health services, boali hospital, tehran, iran niloofar sadat yarandi general practitioner, azad university of medical sciences and health services, boali hospital, tehran, iran mohammad tafazoli shadpour biomedical engineering, amirkabir university, tehran, iran minoo saatian pathologist, azad university of medical sciences and health services, boali hospital, tehran, iran homa raeesi pathologist, kasra hospital, tehran, iran esmaieel jafargholi rangraz biomedical engineering, amirkabir university, tehran, iran

many studies suggested that fractals could be brought in any structural anarchy, such as cancers, for diagnosis and prognosis evaluation by quantifying it and expressing it in terms of fractal geometry. in this study, we aimed to evaluate pathologic grades or breast carcinomas by fractal analysis. this cross-sectional study was performed on 60 women with breast ductal carcinoma. from all the pa...

Journal: :پژوهش های جغرافیای طبیعی 0
سیاوش شایان استادیار، گروه جغرافیای طبیعی، دانشکدة علوم انسانی، دانشگاه تربیت مدرس مهران مقصودی دانشیار، گروه جغرافیای طبیعی، دانشکدة جغرافیای دانشگاه تهران موسی گل علیزاده استادیار، گروه آمار، دانشکدة آمار و ریاضیات، دانشگاه تربیت مدرس محمد شریفی کیا دانشیار، گروه سنجش از دور، دانشکدة علوم انسانی، دانشگاه تربیت مدرس سیده فاطمه نوربخش دانشجوی دکتری جغرافیای طبیعی، دانشکدة علوم انسانی، دانشگاه تربیت مدرس

spatial analysis of aeolian landforms by fractal theory (case study: ardestan rig) abstract natural sciences face to a great revolution, nowadays. now, scientists think the world as a collection of complex systems which prediction of consequences of this complex systems is so difficult. in this situation the systems have rotational act so irregularly lead to regular and regularly lead to irregu...

زال, فرهاد, احمدی خلجی, احمد , طهماسبی, زهرا ,

Based on field observations, tourmalines in Mashhad leucogranites are divided into nodules and dendritic. Fractal geometry is a tool for measuring of irregular shapes. Based on the square method, that is one of the tools of fractal geometry; between fractal dimension and irregular shapes is a direct relationship. Therefore, objects with further irregularities have larger fractal dimension. Tour...

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