This study addresses the problem of "faking bad" (malingering) of abnormal types (non paranoid schizophrenia, paranoid schizophrenia, and psychopathy) when answering the EPQ-R-S personality questionnaire and clinical scales. We tested 180 students under two conditions: “fake bad” and “sincerity”. We demonstrated that although answers to EPQ-R-S may be deliberately and specifically modified, thi...

This paper deals with an integrated model for the joint determination of economic production quantity and preventive maintenance (PM) level for an imperfect process having a general deterioration distribution with increasing hazard rate. The effect of PM activities on the deterioration pattern of the process is modeled using the imperfect maintenance concept. It is assumed that, after each PM, ...

The algebraic arithmetic-geometric mean inequality method (the algebraic AGM method) is used to derive the optimal lot size and the optimal backorders level for the EOQ and EPQ models with backorders and defective items introduced by [6]. The method is easy to derive both the optimal lot size and optimal backorders level without derivatives. AMS Subject Classification: 90B05

This paper considers the impact of random machine breakdowns on the classical Economic Production Quantity (EPQ) model for a product subject to exponential decay and under a no-resumption (NR) inventory control policy. A product is manufactured in batches on a machine that is subject to random breakdowns in order to meet a constant demand over an infinite planning horizon. The product is assume...

While there has been considerable work over the years on multistage lot-sizing models, particularly in an MRP environment, there has been relatively little work on systems recognizing the WIP effects when there is gradual conversion of the components into the final product, as in production planning using the EPQ model for planning the final product. Here we consider lot-sizing planning for a t...

This research focuses on supporting the formation of strategic alliances through the concept of cooperative commerce, where suppliers and buyers work together to jointly optimize their businesses. The general goal of this research is to examine existing cooperative commerce models for obstacles that would hinder their successful implementation into modern industrial applications and to address ...

This paper investigates the optimal replenishment policy under conditions of permissible delay in payments within the economic production quantity (EPQ) framework. In 1985, Goyal assumed that: (1) The unit selling price and the unit purchasing price are equal. (2) The replenishment rate is infinite. (3) At the end of the credit period, the account is settled. The retailer starts paying for high...

In this paper, an Economic Production Quantity (EPQ) model is formulated with investment in green operations and deterioration. the proposed model, demand rate depends on selling-price as well concerning level of products. The main objective study to find optimal replenishment time by considering profit maximization. effect multiple prepayments depicted a figure. Applying operation, manufacture...

This research is derived an integrated model of economic production quantity, inspection and preventive maintenance to incorporate rework, minimal repair and inspection time for an imperfect production system. Some proportions of non-conforming items are assumed scrap before the rework process start and others are reworked. The rework process is imperfect that is a proportion of the reworked it...