نتایج جستجو برای: fractal elements

تعداد نتایج: 304687  

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...

Journal: :journal of mining and environment 2015
allahyar khojamli faramarz doulati ardejani ali moradzadeh ali nejati kalateh amin roshandel kahoo

the ardabil geothermal area is located in the northwest of iran, which hosts several hot springs. it is situated mostly around the sabalan mountain. the sabalan geothermal area is now under investigation for the geothermal electric power generation. it is characterized by its high thermal gradient and high heat flow. in this study, our aim is to determine the fractal parameter and top and botto...

ژورنال: علوم زمین 2018
Ahmad Khakzad Gholamreza Hashemi Marand Mohammadreza Jafari Peyman Afzal

Main aim of this study is to determine relationship between lead and silver mineralized zones using the Concentration-Volume (C-V) fractal modeling and logratio matrix based on subsurface data in Mehdiabad Zn-Pb-Ag deposit, central Iran. First, Pb and Ag raw data were analyzed by statistical processes and their histogram have similar shape. Next, Geostatistical modeling was carried out for the ...

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 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...

2008
M. Jellali

The present paper deals with β-expansions in algebraic function fields. If β is a Pisot unit, we characterise the elements whose β-expansion is purely periodic. In order to pursue this characterisation, we introduce a variant of the Rauzy fractal.

الهام شکریان, , بهاره قانع مطلق, , سمانه برادران, , شاهین روحانی, , ناهید ملکی جیرسرایی, ,

  Patterns formed by the flow of an inhomogeneous fluid (suspension) over a smooth inclined surface were studied. It was observed that fractal patterns formed. There exists a threshold angle for the inclination above which, global fractal patterns are formed. This angle depends on the particle size of the suspension. We observed that there are two fractal dimensions for these patterns, dependin...

ژورنال: آبخیزداری ایران 2020

In this research, fractal relationships were used to evaluate the particle size distribution of the check dam. Three check dams with height of 2, 2 and 2.6 meters were selected and the hole was drilled same the height of the check dam at the sediment deposits. Then, depending on the color of the deposited layers, the thickness of the layers was determined and sampling was down from each layer t...

Detection of deep and hidden mineralization using the surface geochemical data is a challenging subject in the mineral exploration. In this work, a novel scenario based on the spectrum–area fractal analysis (SAFA) and the principal component analysis (PCA) has been applied to distinguish and delineate the blind and deep Mo anomaly in the Dalli Cu–Au porphyry mineralization area. The Dalli miner...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید