Given multiple products with unique lumpy demand patterns, this paper explores the determination of both the lot size for each product and the resource allocation among the products, given an investment budget for production rate improvements. Each product’s optimal production policy takes on only one of two forms: either continuous production or lot-for-lot production. A heuristic procedure de...

The paper presents a system dynamics approach to analysis of generic manufacturing supply chain model and considers the problem of determination of adaptive effective strategy on production, supply rates and price according to inventory levels and the market situation through a demand curve estimation. The special focus lies on the investigation of the product price influences on demand and its...

among the agricultural important factors, inputs are the most significant in agricultural production. this article aimed to examine the impact of government subsidy policies on production of one of the most strategic products, namely on production of one of the most strategic products, namely maize, in iran. to achieve this goal, panel data for the nine provinces of iran's major producers of ma...

We consider a make-to-stock supplier who operates a production facility with limited capacity. The supplier receives orders from customers belonging to several demand classes. Some of the customer classes share advance demand information with the supplier by announcing their orders ahead of their due date. However, this advance demand information is not perfect because the customer may decide t...

the influence of mo particle size on the catalytic activity and product selectivity of alkalized mos2 nanocatalysts has been investigated. nanocatalysts are prepared using a microemulsion technique with water-to-surfactant ratios of 1-12. three different techniques, including xrd, tem, and hydrogen chemisorption were used to determine the molybdenum average particle size and their activity and ...

The dynamic lotsizing problem concerns the determination of optimally produced/delivered batch quantities, when demand, which is to be satisfied, is distributed over time in different amounts at different times. The standard formulation assumes that these batches are provided instantaneously, i.e. that the production rate is infinite. Using a cumulative geometrical representation for demand and...

In this lecture we present a few key results in production planning with known time-varying requirements under convex or concave production costs. Convex production costs arise when we need to utilize increasingly more expensive resources to achieve higher levels of production. As an example, consider a factory with a regular workforce. If demand is beyond the capacity of the regular workforce,...