نتایج جستجو برای: Chaos

تعداد نتایج: 23642  

Journal: :journal of mahani mathematical research center 0
f. ayatollah zadeh shirazi university of tehran f. ebrahinifar university of tehran a. gharagozlou k. n. toosi university of technology

‎in the following text for arbitrary $x$ with at least two elements‎, ‎nonempty countable set $gamma$‎ ‎we make a comparative study on the collection of generalized shift dynamical systems like $(x^gamma,sigma_varphi)$ where $varphi:gammatogamma$ is an arbitrary self-map‎. ‎we pay attention to sub-systems and combinations of generalized shifts with counterexamples regarding devaney‎, ‎exact dev...

L. Malekani M. A. Ghorbani M.T. Alami

Analyses and investigations on river flow behavior are major issues in design, operation and studies related to water engineering. Thus, recently the application of chaos theory and new techniques, such as chaos theory, has been considered in hydrology and water resources due to relevant innovations and ability. This paper compares the performance of chaos theory with Anfis model and discusses ...

Journal: :مهندسی عمران فردوسی 0
محمد ذونعمت کرمانی خاطره امیرخانی

in this research prediction methods of artificial neural network and chaos theory are employed to predict daily, weekly and monthly runoff. for this, runoff series data observed at pole-kohneh located in the qareh-soo river. the nonlinear predictions of chaos are found to be in close agreement with the observed runoff, with high correlation coefficient for daily and weekly time scales. predicte...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان 1393

هدف وارسی سیگنال الکترومایوگرام با استفاده از پارامترهای طیفی ابزارها و ویژگی های حوزه آشوب و فرکتال نظیر نمودار بازگشتی نمای لیپانوف بعد محاط و فضای فاز است

Chaos is a nonlinear behavior that shows chaotic and irregular responses to internal and external stimuli in dynamic systems. This behavior usually appears in systems that are highly sensitive to initial condition. In these systems, stabilization is a highly considerable tool for eliminating aberrant behaviors. In this paper, the problem of stabilization and tracking the chaos are investigated....

Journal: :مطالعات مدیریت بهبود و تحول 0
سیدمهدی الوانی هیئت علمی دانشگاه علامه طباطبائی

today we are facing with a turbulent world full of complexity and change. contemporary problems are too complicated for rational, logical solutions. they admit insights, not answers. chaos theory is a solution to reveal insights into the structure and the dynamics of complex systems. chaos theory is in formative stage, but we can use it in management practices. this article is about application...

Journal: :journal of hydraulic structures 2013
m.t. alami m. a. ghorbani l. malekani

analyses and investigations on river flow behavior are major issues in design, operation and studies related to water engineering. thus, recently the application of chaos theory and new techniques, such as chaos theory, has been considered in hydrology and water resources due to relevant innovations and ability. this paper compares the performance of chaos theory with anfis model and discusses ...

Journal: :international journal of environmental research 2012
s. farzin p. ifaei n. farzin y. hassanzadeh m.t. aalami

chaos theory discusses unstable and non-periodic behavior of non-linear fluctuating dynamicsystems. since evaporation level variations of lakes have a dynamic identity, chaos theory can have a uniquerole in collecting data of these variations. therefore it is an important and challenging problem in the field ofplanning and qualitative and quantitative management of urmia lake to verify whether ...

A. Kaveh, R. Sheikholeslami, S. Talatahari,

The Charged System Search (CSS) is combined to chaos to solve mathematical global optimization problems. The CSS is a recently developed meta-heuristic optimization technique inspired by the governing laws of physics and mechanics. The present study introduces chaos into the CSS in order to increase its global search mobility for a better global optimization. Nine chaos-based CSS (CCSS) methods...

Journal: :Against the Grain 1992

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