List of Articles Open Access Article Abstract Page Full-Text 1 - A matrix method for estimating linear regression coefficients based on fuzzy numbers S. Ezadi T. allahviranllo Open Access Article Abstract Page Full-Text 2 - New Criteria for Existence of a Class of Generalized Euler-types Constants M. H. EGHTESADI FARD Mohammad Hadi Hooshmand Open Access Article Abstract Page Full-Text 3 - The Most Productive Scale Compared to Demand Fulfillment (Case Study: Insurance Companies) M. Ahadzadeh namin E. Khamseh Open Access Article Abstract Page Full-Text 4 - A New multi attribute Decision making Reliability Centered Maintenance in Power Transmission Systems M. Asghari Gharakheili M. Fotuhi-Firuzabad Open Access Article Abstract Page Full-Text 5 - The Calculation of the output price vectorby applying reverse linear programming: The novel approach in DEA S. Sadri M. Rostamy-Malkhalifeh Open Access Article Abstract Page Full-Text 6 - On trivial ends of Cayley graph of groups H. Mirebrahimi A. Babaee Open Access Article Abstract Page Full-Text 7 - A conjugate gradient based method for Decision Neural Network training M. Nadershahi A. D. Safi Samghabadi R. Tavakkoli-Moghaddam Open Access Article Abstract Page Full-Text 8 - new analytical method based on Riccati equation for finding Soliton solutions of Nonlinear Lakshmanan-Porsezian-Daniel (LPD) equation A. Nirmeh Open Access Article Abstract Page Full-Text 9 - Finding the polar decomposition of a matrix by an efficient iterative method F. Kiyoumarsi Open Access Article Abstract Page Full-Text 10 - Stability Analysis of a Fractional Order Model of HIV virus and AIDS Infection in the Community M. S. Shahrokhi Dehkordi Y. Ahmadi Open Access Article Abstract Page Full-Text 11 - Numerical solution of the Sturm-Liouville problem by using Chebyshev cardinal functions M. Shahriari B. Nemati Saray F. Pashaie Open Access Article Abstract Page Full-Text 12 - Parametric Characteristics of the Interaction of Technologies and the Criterion Role of Technology spillover H. Roohian Open Access Article Abstract Page Full-Text 13 - Einstein structures on four-dimensional nutral Lie groups A. Haji-Badali A. H. Zaeim R. Karami Open Access Article Abstract Page Full-Text 14 - A Ciric-type common fixed point theorem in complete b-metric spaces M. Avar Kh. Jahedi M. J. Medipour