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2010 Chinese Control and Decision Conference

作者： Jinsong Hu,Caiyun Guo,Ruqian Xu,Yaping Ji Department of Management Science and Engineering,Qingdao University,Qingdao 266071,China

＜正＞This article considers the economic order quantity problem with imperfect items and service level constraint. We fuzzify the defective rate and annual demand to be the LR-fuzzy numbers and obtain the fuzzy total profit per unit *** optimal order policy is determined using simple algebraic method and signed distance to maximize fuzzy total profit per unit ***,an algorithm which combined customer service level with optimal result obtained only from the aspect of maximize profit is provided to find the optimal order quantity in the fuzzy sense so that the required service level is attained and the total profit per unit time in the fuzzy sense has a maximize ***, numerical examples are provided to illustrate the results of proposed model.

关键词： Inventory Fuzzy Set Imperfect Quality Backorder Service Level economic order quantity

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Simultaneous determination of manufacturer’s process mean and production run length,and retailer’s order quantity

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Journal of Management Analytics 2016年第1期3卷 59-79页

作者： Chung-Ho Chen Chao-Yu Chou Chao-Chin Kan Department of Management and Information Technology Southern Taiwan University of Science and TechnologyTainan Department of Finance National Taichung University of Science and TechnologyTaichung

In Chen and Liu’s optimum profit model with a traditional production system,they did not consider the effect of product quality on the customer’s demand order quantity,and also ignored the used cost of customers for *** fact,the customer’s demand quantity is always seriously related to product ***,in the present paper,we modify Chen and Liu’s model to address the determination of the optimal process parameters by employing the idea of quality loss and single sampling rectifying inspection *** that the quality characteristic of the product is normally distributed,Taguchi’s symmetric quadratic quality loss function is applied in evaluating the product *** decision variables,i.e.,the mean of the process characteristic,the production run length of the product and the retailer’s order quantity,are jointly determined in our modified model to maximize the expected total profit of society,which includes both the manufacturer and the retailer.A heuristic solution procedure is developed for this optimization problem,and a numerical example is provided for *** the numerical results,it can be seen that both the sale price per unit and the intercept of the mean demand of the customer are two major(or significant)parameters in the model and should be more accurately estimated in ***,the quality investment policy is provided to compare its effect on the optimum profit model with quality improvement.

关键词： economic order quantity process mean production run length Taguchi’s quadratic quality loss function quality investment

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Modelling economic order Quantities,Considering Buy and Repair Options for Defective Items,and Allowing for Shortages and Inspection Errors

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Journal of the Operations Research Society of China 2021年第4期9卷 757-795页

作者： HarunÖztürk Department of Business Administration Faculty of Economics and Administrative SciencesSüleyman Demirel UniversityÇünür32260 IspartaTurkey

Nowadays,it is common for suppliers to be separated from their buyers by great *** means that,if some items in the lot turn out to be defective,the distance makes it uneconomical to order replacements from the original ***,both Type I and Type II errors may occur in the screening process for eliminating defective items and the combination of defective items and inspection errors may lead to *** with these assumptions,this paper develops two distinct *** the first model,defective items are repaired by a local repair shop subject to a repair charge and a mark-up *** the second model,a local supplier replaces the defective with good ones,but at a higher *** expected total profit per cycle is developed,together with the expected cycle time,and,employing the renewal reward theorem,the objective function is derived,from which the optimum values are obtained for the order and shortage *** paper presents numerical results and a discussion for both *** study finds that repairing defective items generally leads to greater total profit than purchasing local replacements.

关键词： economic order quantity Inspection errors Optimization Gaussian numerical integration Shortages Repair/emergency purchase

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Optimal inventory policies for short life cycle successive generations’ technology products

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Journal of Management Analytics 2022年第2期9卷 261-286页

作者： Gaurav Nagpal Udayan Chanda Department of Management BITS PilaniPilani CampusPilaniRajasthan 333031India

In this paper,a new economic order quantity(EOQ)model for a successive generation of technology products has been *** classical EOQ model is based on the assumption that the demand rate is *** it cannot be used for technology products where competition-substitution among products is a usual *** address this problem,the EOQ model proposed in this article is considered a demand model for a technology product that follows the innovation-diffusion process.A numerical example has been illustrated and a comprehensive sensitivity analysis is conducted to understand the path of the optimal planning horizon and optimal costs under varied innovation and imitation *** sensitivity analysis of the introduction timing of the second generation has been performed to know the applicability of the model in actual *** behavior of the model has been discussed in detail in the numerical illustration section.

关键词： economic order quantity innovation diffusion technological innovations coefficient of innovation coefficient of imitation successive generations

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Financial Derivatives Market and Storage Management

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厦门大学学报（自然科学版） 2002年第S1期41卷 284-285页

作者： CHEN Guang-fu, WANG Zhou-jing (Department of Automation, Xiamen University, Xiamen 361005, China)

It’s known to all that under ideal condition the s to rage cost is kept in lower level when storage management be arranged by economic order quantity(EOQ).Does this mean that any companies should set up their own storing system in proportion to the scale of the commodities’ producing or sell ing Furthermore, even if they manage storage in EOQ, because of different oper ation scale, geographical condition or ability borrowing money from financial ma rket, different companies pay unequal cost in storing the same *** thi s paper, except for supplying commodities from our own storage system, the autho rs have analyzed other two supplying ways without whole storage system, they are forward contracts and futures *** authors have discussed variable su pply cost for above different supply *** to the cost of each sup ply way, the managers can choose the most economical way in supplying the commod ity and predict the price of futures from storage management arranged by *** e summary content is as follow: 1. The comparing of supply cost between forward contracts and storing system a rranged by EOQ. (1) The supply cost from forward contracts (2) The supply cost from storage system arranged by economic order quantity (3) The application example for comparing cost in different supply way *** comparing of supply cost between futures going physical and storing syst em arranged by economic order quantity. (1) The supply cost from futures going physical (2) The correlation between futures contracts and storage management arranged b y EOQ (3) The application example for comparing cost in different supply way *** does storing system of scale economic affect the price of forward and fu tures contracts (1) How does the price of forward and futures contracts fluctuate (2) How do we calculate the price of a commodity at future point from the cost of scale economic storing (3) How do we operate efficiently in derivatives market by using the cost of s

关键词： economic order quantity forward contracts futur es contracts storage management financial derivatives market

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Research on Optimization of Component Stock

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Journal of Southeast University(English Edition) 1999年第1期15卷 101-105页

作者：王海霞汤文成钟秉林东南大学机械工程系

A set of model is established to optimize BSW Company’s component stock. By analyzing the company’s current part stock condition in terms of the occupation of capitals in the precondition of continuous production, it describes how to control the purchase parameters of import parts. The model describes how to adjust slightly product output sequence and how to control the components’ purchase parameters: purchasing risk time and purchase order quantity. Then simulation is developed to illustrate the model.

关键词： stock control purchase time fence purchasing risk time safety stock quantity economic order quantity

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Expected Value EOQ Model Based on Uncertain Measure

Expected Value EOQ Model Based on Uncertain Measure

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第八届中国不确定系统年会

作者： Lixia Rong,Yufu Ning Computer Science and Technology Department of Dezhou University, Dezhou,Shandong,253023

＜正＞This paper provides expected value EOQ（economic order quantity） model for inventory based on uncertain *** the model,the holding cost,shortage cost and ordering cost per unit are assumed uncertain *** the parameters, are some special uncertain variables with uncertainty distribution such as linear uncertain distribution, zigzag uncertain distribution and normal uncertain distribution,the model can be transformed into crisp equivalent *** illustrate the effectiveness of the models,some numerical examples are provided.

关键词： Uncertain variable Uncertain distribution economic order quantity Expected value model

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