Jet fuel property changes and their effect on producibility and cost in the U.S., Canada, and Europe

The effects of changes in properties and blending stocks on the refinery output and cost of jet fuel in the U.S., Canada, and Europe were determined. Computerized refinery models that minimize production costs and incorporated a 1981 cost structure and supply/demand projections to the year 2010 were used. Except in the West U.S., no changes in jet fuel properties were required to meet all projected demands, even allowing for deteriorating crude qualities and changes in competing product demand. In the West U.S., property changes or the use of cracked blendstocks were projected to be required after 1990 to meet expected demand. Generally, relaxation of aromatics and freezing point, or the use of cracked stocks produced similar results, i.e., jet fuel output could be increased by up to a factor of three or its production cost lowered by up to $10/cu m. High quality hydrocracked stocks are now used on a limited basis to produce jet fuel. The conversion of U.S. and NATO military forces from wide-cut to kerosene-based jet fuel is addressed. This conversion resulted in increased costs of several hundred million dollars annually. These costs can be reduced by relaxing kerosene jet fuel properties, using cracked stocks and/or considering the greater volumetric energy content of kerosene jet fuel

Entrepreneurship Education in the Transformation of Incarcerated Individuals: A Review of the Literature and Future Research Directions

This article draws upon the theories of entrepreneurial cognition, planned behavior, and criminal desistance to understand the role of entrepreneurship education in the behavioral and cognitive transformation of incarcerated individuals. Specifically, this article considers how participation in an entrepreneurship education program should influence entrepreneurial opportunity recognition, cognitive transformation, and institutional misconduct. It suggests these changes are more likely to influence an incarcerated person’s entrepreneurial intentions and criminal desistance. The six propositions presented shed light on how an incarcerated individual’s willingness to change his or her attitudes and develop an entrepreneurial mind-set influence his or her behavior in prison and prepares him or her to prosper in a dynamic and complex world after release. This article argues that the study of one’s transformation while incarcerated through the discovery, evaluation, and exploitation of opportunities is likely to advance empirical and theoretical perspectives of the fields of entrepreneurship. The examination of how incarcerated persons deal with fear of failure, risk aversion, and identity, in particular, presents great opportunities for future research