نتایج جستجو برای: chaos genetic algorithm

تعداد نتایج: 1328736  

Journal: :international journal of environmental research 0
s. farzin faculty of water engineering, department of civil engineering, university of tabriz, tabriz, iran p. ifaei faculty of water engineering, department of civil engineering, university of tabriz, tabriz, iran n. farzin faculty of electrical and computer engineering, university of tehran, tehran, iran y. hassanzadeh faculty of water engineering, department of civil engineering, university of tabriz, tabriz, iran m.t. aalami faculty of water engineering, department of civil engineering, university of tabriz, tabriz, iran

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 ...

2009
CHUN-TIAN CHENG WEN-CHUAN WANG DONG-MEI XU

Genetic algorithms (GA) have been widely used to solve water resources system optimization. However, when applying GAs to solve large-scale and complex water reservoir system problems, premature convergence is one of the most frequently encountered difficulties and takes a large number of iterations to reach the global optimal solution and the optimization may get stuck at a local optimum. Ther...

This paper proposes a design for a mesoscale capsule robot which can be used in gaining diagnostic data and delivering medical treatment in inaccessible parts of the human body. A novel approach is presented for the capsule robot control: A PID-controlled closed-loop approach. A modified chaotic genetic algorithm will be used to optimize the coefficients of PID controller. Then, simulation will...

The nonlinear behavior analysis and chaos control for Duffing-Holmes chaotic system is discussed in the paper. In order to suppress the irregular chaotic motion, an optimal backstepping controller is designed. The backstepping method consists of parameters with positive values. The improper selection of the parameters leads to inappropriate responses or even may lead to instability of the syste...

Journal: :journal of advances in computer research 0
milad malekzadeh young researchers and elite club, ayatollah amoli branch, islamic azad university, amol, iran alireza khosravi faculty of electrical and computer engineering, babol univ. of tech., babol, iran

this paper presents a new observer-based control scheme for a class of nonlinear systems. in the proposed method, nonlinear observer and twisting algorithm controller are employed to realize a sensor-less control strategy for complex systems which makes use of non measurable process information instead of installing as many sensors as possible. due to lack of availability of the complex system ...

Journal: :I. J. Robotics and Automation 2012
Jianjun Ni Simon X. Yang

This paper investigates the foraging of multiple robots in completely unknown environments. The onboard robot sensor information and expert knowledge of foraging are used to forage the targets. The foraging problem in this paper is defined as a searching task, where the robots cooperate to find and reach all the targets in an efficient way. A novel fuzzy-logic based chaos genetic algorithm (FCG...

2014
Li Li Liu Chong-xin Recai Kilic

This paper employs chaos theory into power load forecasting. Lyapunov exponents on chaos theory are calculated to judge whether it is a chaotic system. Delay time and embedding dimension are calculated to reconstruct the phase space and determine the structure of artificial neural network ANN . Improved back propagation BP algorithm based on genetic algorithm GA is used to train and forecast. F...

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