Showing 1 - 10 of 12
Persistent link: https://www.econbiz.de/10012297823
This paper describes a simulation study of assigning attainable or predictable due-dates in hypothetical labor and machine constrained job shop settings of varying size and structure. Several predictable due-date assignment rules are developed based on conditional estimates of individual job...
Persistent link: https://www.econbiz.de/10009209398
This paper analyzes the impact of forecasting on inventory decisions in a large physical distribution system. Alternative forecasting models are evaluated by developing tradeoff curves between inventory investment and customer service. The results demonstrate that the choice of forecasting model...
Persistent link: https://www.econbiz.de/10009209407
Dynamic priority dispatching rules in job shops require the computation of all job priorities in a work center queue every time a machine in the work center becomes idle. This is extremely costly. Alternative priority update procedures are studied and comparative results in terms of performance...
Persistent link: https://www.econbiz.de/10009214184
This study explores the due-date performance of job shop control systems which base job due dates on a time-phased representation of the workload and the machine capacity in the shop. The performance is measured by the mean and the standard deviation of the lateness. Two parameters are used to...
Persistent link: https://www.econbiz.de/10009214188
In most regions of the United States there is a serious imbalance between the number of kidneys donated for transplantation and the number of persons wishing to receive a transplant. This not only affects the quality of life of those unable to obtain a transplant, but it also has important...
Persistent link: https://www.econbiz.de/10009214357
Increasingly simulations have been required as supportive evidence to management of proposed system changes. It has long been recognized that the computer running costs of simulations are strongly influenced by the synchronization mechanism used. Recently the time indexed list has been proposed...
Persistent link: https://www.econbiz.de/10009218411
This paper summarizes an actual study conducted for the State Planning Organization of Turkey with the objective of formulating a national R&D policy, the implementation of which will contribute to the realization of the national goals stated in the development plans of the country. The study...
Persistent link: https://www.econbiz.de/10009204319
This paper applies some traditional management science tools to the study of Switzerland---a small country characterized by the openness of its politico-economic system to the outside world. Despite its apparent vulnerability to external influences, Switzerland has been able to maintain a...
Persistent link: https://www.econbiz.de/10009204525
Previous authors have shown that dynamic ratio scheduling rules do not always behave as intended. A recent proposal by Adam and Surkis (Adam, N. R., J. Surkis. 1980. Priority update intervals and anomalies in dynamic ratio type job shop scheduling rules. Management Sci. 26 (12, December)...
Persistent link: https://www.econbiz.de/10009204550