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Full-Text Articles in Business Administration, Management, and Operations
An Optimization Model For Planning Natural Gas Purchases, Transportation, Storage And Deliverability, Anthony E. Bopp, Vijay R. Kannan, Susan W. Palocsay, Scott P. Stevens
An Optimization Model For Planning Natural Gas Purchases, Transportation, Storage And Deliverability, Anthony E. Bopp, Vijay R. Kannan, Susan W. Palocsay, Scott P. Stevens
Management Faculty Publications
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 Unlike other models, this model explicitly considers deliverability, the rate at which gas can be added to and withdrawn from a storage facility, as a variable, and considers its role in ensuring a secure supply of gas. Deliverability is often overlooked in gas supply planning, yet is a critical factor in achieving a secure gas supply. Using data from an LDC in Huntsville, Alabama, …
Incorporating The Impact Of Learning In Assessing The Effectiveness Of Cellular Manufacturing, Vijay R. Kannan
Incorporating The Impact Of Learning In Assessing The Effectiveness Of Cellular Manufacturing, Vijay R. Kannan
Management Faculty Publications
Previous studies suggest that despite their intuitive appeal, cellular manufacturing systems are only effective in a batch production environment under a limited set of conditions. However, these studies have not taken into account the potential for productivity improvements unique to shops organized around product and work groups. Improvements that yield processing time reductions and rapid movement down the learning curve may offset the limited flexibility that typically compromises the performance of cellular shops. This paper demonstrates that if a cellular shop can yield even marginally greater reductions in processing times than a job shop, it can outperform the job shop …