A quadratic programming model of the Appalachian steam coal market
Abstract The authors report on an extension of recent modelling efforts to analyse the Appalachian steam coal market using a programming approach. The background to these modelling efforts is examined first. The particular aspects of the steam coal market to be modelled are then presented and the corresponding coal model described. Empirical results are analysed for the 1973 base solution and then compared to alternative solutions embodying variations in the parametric structure. Conclusions are drawn regarding potential policy applications.
Interregional structure of the U. S. coal economy
A multiperiod spatial equilibrium model of the national coal economy is developed to evaluate future interregional shifts in coal production and the investment requirements and sequencing for exploitation of a nonrenewable, variable quality resource. The effects of alternative sulfur dioxide emission standards and demand growth projections on the location and type of coal production, the transportation industry, and capital markets are examined. The study concludes that the coal industry can expand through 1990, especially in Appalachia and the West, to meet both greatly increased demand and restrictive air quality standards at moderately increased cost.
Collaborative Aircraft Design Methodology using ADAS linked to CEASIOM
The aircraft design stages, conceptual and preliminary, are necessarily collaborative bytheir very nature. An example design carried out in this paper brings the collaborativeaspects of design to l ...