In this paper, economic production quantity(EPQ)models for breakable or deteriorating items are developed with time dependent linear variable demands. Here rate of production and holding cost are time dependent and unit production cost is a function of both production reliability indicator and production rate. Set-up cost is also partially production rate dependent.The production process produc...

This study attempts to determine the optimal production run time for an economic production quantity (EPQ) model with a Poisson breakdown rate, the rework of nonconforming items, and multi-delivery of finished products. It is assumed that nonconforming items can be randomly produced and repaired through a rework process added at the end of the production process. Production equipment is subject...

In this paper, we have developed an economic production quantity (EPQ) model in which is executed mainly by the original machine. But when system faces disruption, buffer of it continues production. Here, incorporate a fixed Safe Period running policy, machine runs interruptedly, whenever commences. The disruption may occur at any moment time horizon over safe period, and then, will go under co...

The main purpose of this paper is to investigate the retailer’s optimal cycle time and optimal payment time under the supplier’s cash discount and trade credit policy within the economic production quantity (EPQ) framework. In this paper, we assume that the retailer will provide a full trade credit to his/her good credit customers and request his/her bad credit customers pay for the items as so...

Summery-EPQ Psychoticism (P) is thought to be fundamental to religiosity (Francis, 1992a), while Neuroticism (N), Extraversion (E) and Lie dimensions (L) are not consistently found to be associated with religious beliefs and behaviours. Among 6463 Anglican, Other Protestant and Catholic Australian twins (aged 17-88yr), we found that men and women who attended church regularly had low P and low ...

The main purpose of this paper is to investigate the optimal retailer’s replenishment decisions for deteriorating items under two levels of trade credit policy to reflect supply chain management situation within the economic production quantity (EPQ) framework. In this paper, it is assumed that the retailer maintains a powerful decision-making right and can obtain the full trade credit offered ...

This paper develops economic production quantity (EPQ)-based models with planned backorders to evaluate the impact of the postponement strategy on a manufacturer in a supply chain. We derive the optimal total average costs per unit time for producing and keeping n end-products in a postponement system and a nonpostponement system, respectively. By comparing the optimal total average costs of th...

Within the economic production quantity (EPQ) framework, the main purpose of this paper is to deal with Chung and Huang’s model (2003) and extend Chung and Huang’s model (2003) by considering the unit selling price higher than the unit purchasing cost using the algebraic method to determine the optimal inventory replenishment policy for the retailer under trade credit. This paper provides this ...

Three studies find Creativity correlates with Psychoticism and Intelligence. With 52 university professors, publication and citation counts correlated 0.26 (P < 0.05) with Psychoticism assessed by a weighted composite of trait ratings made by faculty-peers and 0.40 (P < 0.01) with faculty-peer rated intelligence. Among 69 university professors, an enjoyment of research composite correlated r = ...