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Introduction Model formulation and the convexity Decision rule of the optimal cycle time T*

An optimized feeding strategy for the fed-batch fermentation of 2-keto-L-gulonic acid (2-KGA) is proposed to enhance total profit a workshop. Instead assigning same quantity substrate each batch in empirical scheduling, online offers practical approach that allows precise management maximize economic performance. The forecasting function has been achieved through similarity measurement and mult...

Comment on 'Optimal inventory replenishment policy for the EPQ model under trade credit derived without derivatives' Jinn-Tsair Teng a; S. K. Goyal b a Department of Marketing and Management Sciences, The William Paterson University of New Jersey, Wayne, New Jersey 07470-2103, USA b Department of Decision Sciences & MIS, John Molson School of Business, Concordia University, Montreal, Quebec, Ca...

In this paper, we provide analytical support for the notion that it may be possible, via operational adjustments alone, to significantly reduce emissions without significantly increasing cost. Using the EOQ model, we provide a condition under which it is possible to reduce emissions by modifying order quantities. We also provide conditions under which the relative reduction in emissions is grea...

This paper describes two heuristics for the basic economic order quantity and economic production quantity with partial backordering that use the time between orders and the percentage of demand filled from stock as the decision variables. Tests of the heuristics on a set of problems generated by using different values for six situational characteristics indicate that both heuristics should per...

This paper introduces and examines a generalized EOQ formula, based on the model with linear and fixed backordering costs. The new square-root formula is a combination of two well-known classical models, the basic EOQ model without stockouts and the EOQ model with backorders and linear backordering costs. Helping to combine the two is a new parameter, a fractional coefficient capturing the attr...

This paper presents a simple algebraic approach for deriving the optimal lot size for economic production quantity (EPQ) model with rework process. Conventional methods for solving lot size problems are by using differential calculus on the long-run average production-inventory cost function with the need to prove optimality first. A few recent articles proposed the algebraic approach to the so...

In the classical inventory models, the common unrealistic assumption is that all the items produced are of good quality in nature. However, in realistic environment, it can be observed that there may be some defective items in an ordered lot. These items are usually picked up during the screening process and are sold as a single lot at the end of screening process. Further, it is tacitly assume...