List of Articles ماتریس سختی Open Access Article Abstract Page Full-Text 1 - A new model as a damage index in an eigen value problem with application in health monitoring of offshore jacket platform Mehdi Alavinejhad Madjid Ghodsi Hassanabad Mohammadjavad Ketabdari Masoud Nekooei Open Access Article Abstract Page Full-Text 2 - Finite Element Model Updating Using Response Function Method Mohamad Reza Ashory Hamid Daiyan Ehsan Jamshidi