This paper develops a method for solving the single product multi-period production-planning problem, in which the production and the inventory costs of each period arc concave and backlogging is not permitted. It is also assumed that the unit variable cost of the production evolves according to a continuous time Markov process. We prove that this production-planning problem can be Stated as a ...

Rapid urban growth is resulting into increase in travel demand and private vehicle ownership in urban areas. In the present scenario the existing infrastructure has failed to match the demand that leads to traffic congestion, vehicular pollution and accidents. With traffic congestion augmentation on the road, delay of commuters has increased and reliability of road network has decreased. Four s...

after development of a great concern (in last decade) about the adequacy and fidelity of the undergraduate educational program of electrical engineering in the electrical engineering department of sharif university of technology, a committee was assigned in 2004, to identify the shortcomings of the program and initiate a dynamic, restructured program to satisfy the educational requirement of a ...

generally ordering policies are done by two methods, including fix order quantity (foq) and fix order period (fop). these methods are static and either the quantity of ordering or the procedure of ordering is fixing in throughout time horizon. in real environments, demand is varying in any period and may be considered as uncertainty. when demand is variable in any period, the traditional and st...

This paper investigates how enterprise resource planning (ERP) systems can influence enterprise management strategy and structure and vice versa. The research provides an up-to-date literature review, empirical case studies and proposes a new conceptual model – the Dynamic Enterprise Reference Grid for ERP (DERG-ERP) – as a management contingency framework.

The resource-based view (RBV) has historically privileged the firm's internal resources and capabilities, often at the exclusion of its institutional context. In this paper, we introduce a culturally informed RBV that explains how cultural elements in the firm's institutional context shape the economic value associated with a firm's strategy. We posit that a firm's institutional context may cre...

In this study, We applied the true orthophoto obtained by combining the aerial photograph having high overlap ratio taken by area sensor type digital aerial camera “DMC” with the generation method effectively using the vector data to the fundamental data used by the administration to get rid of the narrow road of the width of 4 m or less at the urban area. We are planning to utilize this method...