TY - JOUR AU - Zareei, M. AU - Hassan-pour, H. A. AU - Mosadegh-khah, M. PY - 2014 TI - Time-cost Tradeoff for Optimizing Contractor Npv by Cost Payment and Resource Constraints Using Nsga-ii Algorithm (case Studybandar Abbas Gas Condensate Refinery Project) JO - Journal of Mathematics and Computer Science SP - 12 - 26 VL - 12 IS - 1 AB - In this paper, a mathematical model is presented for project scheduling with multiple purposes based on considering cost payment and resource constrains and since this this problem is considered as complex optimization in NP-Hard context, in order to solve proposed method from NSGA-II algorithm and the results are compared with GAMS software in some problems. The proposed method is a Converge to the optimum and efficient solution algorithm. Besides this algorithm is used in some parts of refinery project. SN - ISSN 2008-949X UR - http://dx.doi.org/10.22436/jmcs.012.01.02 DO - 10.22436/jmcs.012.01.02 ID - Zareei2014 ER -