The Southeast is a net importer of milk and milk products. Milk must be imported from other regions at certain times of the year. Reverse osmosis (RO) is a new processing technology which could significantly reduce mi...
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The Southeast is a net importer of milk and milk products. Milk must be imported from other regions at certain times of the year. Reverse osmosis (RO) is a new processing technology which could significantly reduce milk transportation costs between regions by removing half the water from raw milk prior to shipment. A network flow algorithm, which incorporates federal milk orders and solves for the least cost procurement pattern, was used to assess the impact of RO on Southeast milk marketing orders under alternative raw product pricing scenarios. -Authors
An integrated pulp and paper mill constitutes a rather complex system, being composed of a number of production departments and with storage capacities between these departments. The purpose of a computer-based produc...
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An integrated pulp and paper mill constitutes a rather complex system, being composed of a number of production departments and with storage capacities between these departments. The purpose of a computer-based production control system is to reduce the effects of breakdowns and other disturbances in such a production system. Efficient coordination of the different production departments of the mill is achieved by efficient utilization of the existing storage capacities. A system with the above purpose has been developed at the Swedish Forest Products Research Laboratory and was installed in 1975 in the integrated pulp and board mill at Iggesund. A second, expanded system, is now being installed in cooperation with ASEA AB and Stora Kopparberg in the pulp mill at Skutskär. The system, which uses the mill’s process computer and on-line information system, includes an algorithm, based on networkflow technique, that calculates a plan with suggested production rates in the different departments on the basis of known restrictions. The plan is specified hour by hour during the planning period (2 days). The plan can also be manually adjusted. Together with the plan different consequences of it, such as the development of storage tank levels production volumes or energy balances, are presented on display screens.
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