Results 251 to 260 of about 782,195 (298)

Economic order quantities and variations in production load

International Journal of Production Research, 1980
When production orders are initiated by an inventory control system the production load daring a given time period can be looked upon as a random variable. When order quantities are large the variations in production load can be a severe problem.
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Determining an economic production quantity under a zero defects policy

Journal of the Operational Research Society, 2017
This study considers a production system that shifts randomly from an in-control state to an out-of-control state, where, when the system is out of control, it has a larger probability of producing...
Neng-Hui Shih, Yao-Sheng Liao, Chih-Hsiung Wang   +2 more
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Production order quantity for economical and quality consideration

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2010
In the conventional production-inventory management approach, the production order quantity is determined by referring to costs such as the ordering cost and inventory cost. However, the quality level being produced may change during the production process owing to process deterioration.
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An economic production quantity problem with backorders and fuzzy cycle times

Journal of Intelligent & Fuzzy Systems, 2015
Optimization models combining Economic Production Quantity models and fuzzy set theory are important to the process industry as they are capable of modeling the numerous uncertainties inherent in this context. In this paper, we incorporate backorders (i.e the inventory to go below zero) in a fuzzy Economic Production Quantity (EPQ) model.
József Mezei, Kaj-Mikael Björk
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On the integration of production and distribution: Economic order and production quantity implications

Transportation Research Part B: Methodological, 1996
Abstract Economic Order Quantity (EOQ) and Economic Production Quantity (EPQ) models have been used for well over 50 yr to optimize batch quantities in transportation and production. Traditionally, EOQ and EPQ models have treated production and transportation batch sizes as independent decisions.
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Optimal decision of an economic production quantity model for imperfect manufacturing under hybrid maintenance policy with shortages and partial backlogging

International Journal of Production Research, 2018
Considering the characteristics of the stochastic shift of the machine state and the uncertainty of the product quality of production, in this paper, we develop an optimisation decision of economic production quantity model for an imperfect manufacturing
Xinfeng Lai, Zhixiang Chen, B. Bidanda
semanticscholar   +1 more source

Twelve Years’ Experience With Economic Production Quantities

Journal of Fluids Engineering, 1930
Abstract For twelve years economic production quantities have governed the sizes of production orders in the plant of Eli Lilly and Company, manufacturers of pharmaceutical and biological products, at Indianapolis, Ind. This paper outlines briefly some of the major results of this practice, both direct and indirect, and discusses some of
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An alternative approach to analyze economic ordering quantity and economic production quantity inventory problems using the completing the square method

Computers & Industrial Engineering, 2010
In most papers and textbooks, the economic order quantity (EOQ) models and their variants, and the economic production quantity (EPQ) models and their variants are commonly solved using differential calculus. This study proposes an alternative approach that transform the problem into a suitable form and a procedure using the completing the squares ...
Omar, M., Zubir, M.B., Moin, N.H.
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Economic production quantity model considering warm-up period in a cleaner production environment

International Journal of Production Research, 2018
Currently, the primary objective of every manufacturing organization is in customers’ satisfaction and system cost reduction while keeping in mind both production quantity (economic issues) and environmental issues (sustainability).
A. H. Nobil, S. Tiwari, F. Tajik
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Economic production-ordering quantity models with limited production capacity

Production Planning & Control, 1998
In a recent paper published in Production Planning & Control , Goyal and Gopalakrishnan proposed a production policy that incursshortageswhen the facility capacity is insufficient to satisfy the annual demand. However, it is very common to resort to external supplying sources, e.g.
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