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 ...

Decision-making supported by task-oriented software tools plays more and more role in the production companies, including metallurgical plants. Decision-making in production planning and scheduling requires the response in an interactive real-time mode. It is an incentive for developing decision support system (DSS) that enables a fast prototyping of production flows in multi-project environmen...

A form for homogeneous functions is presented which shows them to be a very simple extension of the wellknown Cobb-Douglas functions with similar properties in production (and distribution) economics. This form thus suggests new possibilities for interpreting a wide variety of empirical and theoretical results in economics; it also provides contact with developments in other fields, such as inf...

This paper proposes an integrated network design model for a post-distribution cross-docking strategy, comprising multi product production facilities with shared production resources, capacitated cross docks with setup cost and customer zones with time windows constraints. The model is dynamic in terms of time-varying uncertain demands, whereas uncertainty is expressed with scenario approach an...

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...

in this study, a bi-objective model for integrated planning of production-distribution in a multi-level supply chain network with multiple product types and multi time periods is presented. the supply chain network including manufacturers, distribution centers, retailers and final customers is proposed. the proposed model minimizes the total supply chain costs and transforming time of products ...