this study was designed to investigate the demand for institutional credit among small scale farmers in imo state. a sample of 40 livestock and 50 food crop farmers were selected respectively using multistage random sampling technique. data were collected with a well structured questionnaire administered to a total of 90 randomly selected farmers. data collected were analyzed using descriptive ...

This paper deals with the production-dependent failure rates for a hybrid manufacturing/remanufacturing system subject to random failures and repairs. The failure rate of the manufacturing machine depends on its production rate, while the failure rate of the remanufacturing machine is constant. In the proposed model, the manufacturing machine is characterized by a higher production rate. The ma...

Traditionally, optimal preventive maintenance strategies are derived under deterministic and constant rate demand. Using ‘‘option’’, a powerful financial derivative tool to tackle optimization problem under uncertain environment, this paper presents an analytical, option-based cost model for scheduling joint production and preventive maintenance when demand is uncertain. The manufacturing enter...

It was suggested in 2004 by some researchers that it might be possible to improve production systems performance by applying the first and second laws of thermodynamics to reduce system entropy. Then these laws were used to modify the economic order quantity (EOQ) model to derive an equivalent entropic order quantity (EnOQ). Moreover the political instability or uncertainty of a country (as wel...

In this paper, we examine the effect of product variety on inventory costs in a production– inventory system with finite capacity where products are made to stock and share the same manufacturing facility. The facility incurs a setup time whenever it switches from producing one product type to another. The production facility has a finite production rate and stochastic production times. In orde...

different world views and philosophies in defining development problems and their solutions derive currently from different disciplines. they refer in many respects to the principle of cause-effect as a fundamental relationship between phenomena. the history of differing values and attitudes presented in management and design indicates the importance of this relationship. this sort of knowledge...

In this study we have discussed a fuzzy eoq model for deteriorating products with time varying deterioration under inflation and exponential dependent demand rate. Shortages are not allowed in the impact of is investigated. An inventory used to determine whether order quantity more than or equal predetermined declining items.The optimal solution existing derived by taking truncated taylor’s ser...