Natural gas local distribution companies (LDCs) face the problem of managing natural gas purchases under conditions of uncertain demand and frequent price change. In this paper, we present a stochastic optimization model to solve this problem. Unlike other models, this model explicity considers...

Previous research has shown that the formation of temporary, logical manufacturing cells in a job shop, overcomes problems of high setup frequency typically found in job shops. In addition, this form of cellular configuration is more flexible than tranditional, group technology based cellular...