The main objective of this study is to estimate a part of road traffic injury costs including costs due to fatality and disability, which are related to lost social products. Lost output consists of costs, which are related to losses of national product or lost-income in death, hospitalization or physical disabilities. In recent years, the Disability-Adjusted Life Years (DALYs) has been used as...

the problem we investigate deals with the optimal assignment of resources to the activities of a stochastic project network. we seek to minimize the expected cost of the project include sum of resource utilization costs and lateness costs. we assume that the work content required by the activities follows an exponential distribution. the decision variables of the model are the allocated resourc...

one of the really important challenges facing agricultural producers is the choice of their product distribution channels. the present study is aimed at investigating the citrus marketing channel strategy and its determinants among citrus orchardists of mazandaran using a nested logit model. some two hundred and fifty two orchardists from 15 cities of mazandaran were taken as the study samples....

Distribution network design as a strategic decision has long-term effect on tactical and operational supply chain management. In this research, the location– allocation problem is studied under demand uncertainty. The purposes of this study were to specify the optimal number and location of distribution centers and to determine the allocation of customer demands to distribution centers. ...