development of the modern education system and iranian high interest in studying the new science and broad government support government over the last century of the modern educational system, and high costs to expand and improve its quality by no means imply the entrance of science and scientific attitude to iranian relations. system of economic production and social relations and political st...

development of the modern education system and iranian high interest to study the new science and broad support government over the last century of the modern educational system, and high costs to expand and improve its quality by no means enter science and scientific attitude to life, not an iranian relations. system of economic production and social relations and political structure of modern...

In this paper, we propose a new optimized PID controller to stabilize the synchronous machine connected to an infinite bus. The model for the synchronous machine is 4-ordered linear Philips-Heffron synchronous machine. In this research, the parameters of the PID controller are optimally achieved by minimizing a definite fitness function to removes the unstable Eigen-value to the left side of im...

to study art, sociologists have so far related it either to the economic base of the artistic product or to the artist's ideology or world-view or the class structure of the audience and art consumers. the importance of none of these factors could be denied; however, what is more important is the relation between these factors, the complex network of political, economic and social relations tha...

I plead for writing a world history that is as comprehensive and systematic as possible. It should offer a more humanocentric alternative to western Eurocentrism. This history should seek maximum “unity in the diversity” of human experience and development. Therefore, we should not only make comparisons over time and space, we should also seek more connections among distant and seemingly dispar...

The priority task of international collection and dissemination of information concerning diseases of animals by the OIE has three purposes: to alert countries threatened by an epizootic, to strengthen international cooperation on the control of animal diseases, and to facilitate international trade in animals and animal products. In order to improve the quantity and quality of information rece...