A New Approach to Determine Parameter Sensitivities of Transfer Lines

Article Abstract:

A new method for parameter estimation in a production line, for either a continuous or discrete process (dealing in pieces) is presented. Some decision variables are; size of storage between machines, production rates of machines, failure rates of machines, number of operators, number of repairmen, and number of duplicate work stations. The assumptions, various states of flow, and some special cases are described, and the use of some equations and figures are explained. The approach was used on a real line. Tables show experimental verification of sensitivity determination and also experimental verification of repair time and cycle time sensitivity. This method can be extended to any parameters in the system.

Management science, Systems analysis, Inventory control, Parameter estimation, Performance improvement (Computers), Cost, Production, Optimization, Sensitivity Analysis, Performance Improvement, Operations Research

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Cash transfer scheduling for concentrating noncentral receipts

Article Abstract:

Cash concentration is a common cash management technique in which funds are transferred from remote bank account locations to central corporate bank accounts. A company can effect significant savings by properly scheduling such transfers. An easy-to-implement model is presented which is designed to facilitate cash concentration. The transfer policy used is demonstrated to be day-specific and amenable to computerization. Results are shown to be true under a set of realistic assumptions about cost functions, deposit patterns, and institutional arrangements.

Models, Finance, Corporations, Corporate finance, Cash management

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An Algorithmic Solution to Two-Stage Transfer Lines with Possible Scrapping of Units

Article Abstract:

In an automatic transfer line, workpieces are processed by the first machine. The piece moves to the next machine, to a buffer storage area, or remains at the first machine. The first machine cannot then process workpieces until the blockage is broken. A two-stage synchronized automatic transfer line where workpieces transfer at all stages, at the same time, is modelled. Each machine can fail and be repaired. Several graphs illustrate various characteristics of the model.

Manufacturing, Reliability (Trustworthiness), Modeling, Data modeling software, Reliability, Markov Process, Probability, Assembly Line, Scheduling Applications

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