Presentation of model for Determination of Optimal Locationof the Parts in Series System in order to Increase System Reliability in Security Nodes of E-Commerce

karbasian Mahdi نويسنده Assistant professor, industrial engineering Dept. , farezian vahide نويسنده , Abedi Saeed نويسنده Young Researchers Club, Najaf Abad Branch, Najaf Abad, Isfahan, Iran, , ramezani roghaie نويسنده