C3MR, MFC, and DMR processes in an integrated LNG-NGL-NRU structure are investigated using the conventional and advanced exergy and exergoeconomic analyses. The results of advanced exergy analysis reveal that in most of the equipment, the highest amount of irreversibility is occurred because of endogenous exergy destruction. In C3MR process, compressor C5 with 9730 kW; in MFC process, compresso...

This paper analyzes the behavior of monopoly firm serving its products to two countries. The main focus of this paper is on how the product-quality choice in different markets are related with the cost structure of the firm. First, This paper examines the effects of production and R&D costs on the product quality separately, and then discusses the general case where the both costs exists. This ...

W study markets for information goods and find that they differ significantly from markets for traditional industrial goods. Markets for information goods in which products are vertically differentiated lack the segmentation inherent in markets for industrial goods. As a result, a monopoly will offer only a single product. Competition leads to highly concentrated information-good markets, with ...

This study defines a methodology to compute unitary costs for freight transportation modes. The main objective was to gather relevant costs data to support the formulation and evaluation of railway, road, pipelines and port projects. This article will concentrate on the following steps: Compilation and analysis of relevant modal cost studies, Methodological adjustments to make cost figures comp...

This paper discusses the impact of collection cost structure on the optimal reverse channel choice in decentralized uncoordinated supply chains. Using collection cost functions that capture collection rate and collection volume dependency, we show that the optimal reverse channel choice is driven by how the cost structure moderates the manufacturer’s ability to shape the retailer’s sales and co...

In this paper, we describe a cost model for an adaptive cellbased index structure which aims at efficient management of immense amounts of spatio-temporal data. We first survey various methods to estimate the performance of R-tree variants. Then, we present our cost model which accurately estimates the number of disk accesses for the adaptive cell-based index structure. To show the accuracy of ...

This article identifies an important channel through which excess control rights affect firm value. Using a new, hand-collected data set on corporate ownership and control of 3,468 firms in 22 countries during the 1996–2008 period, we find that the cost of debt financing is significantly higher for companies with a wider divergence between the largest ultimate owner’s control rights and cash-fl...

In this paper we focus on efficient methods for pruning the state space in costoptimal planning. The use of heuristics to guide search and prune irrelevant branches has been widely and successfully explored. However, heuristic computation at every node in the search space is expensive, so reducing the number of nodes to be considered by up-front analysis has great potential. Our contributions a...

in this article we present an algorithm for converting a network problem with several sources and several sinks including several transfer nodes and condition of supplying the demand of any sink from a particular source to the transportation problem.  towards this end, and considering the very special structure of transportation algorithm, after implementing the shortest path algorithm or solvi...

A lateral structure for low-cost fabrication of COOLMOS on SOI wafers is proposed and the feasibility of the fabrication steps is verified by simulation in GENESISe environment. The requirement of multiple epitaxy and implantation steps for the growth of voltage-sustaining pillars in conventional vertical COOLMOS is automatically eliminated in the proposed method through the use of the lateral ...