If the components in a component-based software system come from different sources, the characteristics of the components may be different. Therefore, evaluating the reliability of a component-based system with a fixed model for all components will not be reasonable. To solve this problem, this paper combines a single reliability growth model with an architecture-based reliability model, and pr...

In recent decades, Iranian villages have experienced an increasing transformation culturally and environmentally due to the social changes. In pre-modern period (about half a century ago), villages were known as the production sources and had an important social and economic credit as cities foundation. However, a number of changes occurred in the rural “lifestyle” resulting from development of...

Historical data are widely used in river ecology to define reference conditions or to investigate the evolution of aquatic systems. Most studies rely on printed documents from the 19th century, thus missing pre-industrial states and human impacts. This article discusses historical sources that can be used to reconstruct the development of riverine fish communities from the Late Middle Ages unti...

this article strive to examine and explaine national sources of the foreign policy of the islamic republic of iran. cultural, historical, geographic, ideological, social, and economic variables, as societal sources, will lead to the continuation of some behaviours in iran’s foreign policy. the author argues that to better understand iran’s foreign policy, one must pay attention to the above var...

The two ancient civilizations of Iran and India, due to their long-standing cultural, political and economic relations, have had a relative cognition of each other's identity, which has, over time, become more logical, complete, and at times symbolic. Undoubtedly, in order to understand the history of Iran and India in ancient times and how these two nations interacted, we must inevitably find ...