Selcuk Emiroglu, Akif Akgül, Yusuf Adıyaman, Talha Enes Gümüş, Yılmaz Uyaroglu and Mehmet Ali Yalçın
The purpose of this paper is to develop new four-dimensional (4D) hyperchaotic system by adding another state variable and linear controller to three-dimensional T chaotic…
Abstract
Purpose
The purpose of this paper is to develop new four-dimensional (4D) hyperchaotic system by adding another state variable and linear controller to three-dimensional T chaotic dynamical systems. Its dynamical analyses, circuit experiment, control and synchronization applications are presented.
Design/methodology/approach
A new 4D hyperchaotic attractor is achieved through a simulation, circuit experiment and mathematical analysis by obtaining the Lyapunov exponent spectrum, equilibrium, bifurcation, Poincaré maps and power spectrum. Moreover, hardware experimental measurements are performed and obtained results well validate the numerical simulations. Also, the passive control method is presented to make the new 4D hyperchaotic system stable at the zero equilibrium and synchronize the two identical new 4D hyperchaotic system with different initial conditions.
Findings
The passive controllers can stabilize the new 4D chaotic system around equilibrium point and provide the synchronization of new 4D chaotic systems with different initial conditions. The findings from Matlab simulations, circuit design simulations in computer and physical circuit experiment are consistent with each other in terms of comparison.
Originality/value
The 4D hyperchaotic system is presented, and dynamical analysis and numerical simulation of the new hyperchaotic system were firstly carried out. The circuit of new 4D hyperchaotic system is realized, and control and synchronization applications are performed.
Details
Keywords
Purpose. The purpose of this chapter is to determine the role of women cooperatives as an employment policy in Turkey. In this context, the aim is to investigate the effects of…
Abstract
Purpose. The purpose of this chapter is to determine the role of women cooperatives as an employment policy in Turkey. In this context, the aim is to investigate the effects of women’s cooperatives movement on the social and economic development and female participation within the labor force.
Method. In this chapter, the importance of cooperatives in the realization of economic development has been evaluated more qualitatively. The history of Turkish cooperatives has been briefly emphasized and the impact of women’s cooperatives on sustainable development goals (SDG) has been evaluated through a systematic literature review.
Results. After reviewing the literature and evaluating the samples of women’s cooperatives in Turkey with the sustainable development framework goals, it has been determined that cooperatives are an opportunity for the employment of women. It has been seen that women cooperatives are a contribution to the SDGs with their structure and action. In this respect, it can be said that women’s cooperatives can be regarded as an effective policy for increasing women’s employment in regions with traditional labor market structures.