this paper aims to investigate the integrated production/distribution and inventory planning for perishable products with fixed life time in the constant condition of storage throughout a two-echelon supply chain by integrating producers and distributors. this problem arises from real environment in which multi-plant with multi-function lines produce multi-perishable products with fixed life ti...

generally, a typical problem which is crucial in a manufacturing system is increasing the production rate.  to cope with the problem, different types of techniques are used in companies by trial and error which imposes high costs on them. using simulation as a tool for assessing the effect of alterations on the performance of the overall system might be significant. this paper considers a simul...

quality of products and services is considered as a key factor for customer satisfaction. quality function deployment (qfd) is known as a critical tool for translating voice of customers to prioritize technical requirements of a production. the level of this satisfaction depends on the number of fulfilled requirements. it should be noted that this level varies according to the possible constrai...

abstract with consideration to the resource limitation, it seems necessary to design cropping pattern scientifically in order to increase productivity of production factors and to decrease production average costs. this studyaimed at identifying the optimum cropping pattern based on comparative advantage in three counties of ilam province including darreh shahr, ivan, and shirvan chardaval. to ...

Using the mathematic techniques such as Fuzzy approach has useful outcomes for production planning in different sources. In this paper LGP1 was used to model the objectives such as: avoidance of shortage or surplus of demand, access to maximum of income, using the normal capacity of production and organizing the inventory of warehouse, within the framework of Goal constraints like balancing b...