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A characterization and evaluation of coal liquefaction process streams. Quarterly technical progress report, April 1--June 30, 1995
Robbins, G.A.; Brandes, S.D.; Winschel, R.A.; Burke, F.P. - 2009
The objectives of this project are to support the DOE direct coal liquefaction process development program and to … improve the useful application of analytical chemistry to direct coal liquefaction process development. Independent analyses … by well-established methods will be obtained of samples produced in direct coal liquefaction processes under evaluation …
Persistent link: https://www.econbiz.de/10009435388
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Effect of market structure on international coal trade
Kolstad, C.D.; Abbey, D.S. - 2009
This paper is concerned with the determinants of international steam-coal trade. Most work in projecting coal trade has … of steam-coal trade of several deviations from the simple competitive model. In addition to perfect competition, we … Columbia). Using a simple equilibrium model of coal trade, we examine these market structures and evaluate the extent to which …
Persistent link: https://www.econbiz.de/10009437106
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DSD front models: nonideal explosive detonation in ANFO
Bdzil, J. B.; Aslam, T. D.; Catanach, R. A.; Hill, L. G.; … - 2010
The DSD method for modeling propagating detonation is based on three elements: (1) a subscale theory of multi-dimensional detonation that treats the detonation as a front whose dynamics depends only on metrics of the front (such as curvature, etc.), (2) high-resolution, direct numerical...
Persistent link: https://www.econbiz.de/10009435465
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Use of the Edmonds-Reilly Model to model energy-related greenhouse gas emissions
Barns, D.W.; Edmonds, J.A.; Reillyn, J.M. - 2008
The purpose of this paper is to document the results of our application of the Edmonds-Reilly Model (ERM) using several scenarios provided for an Organization for Economic Cooperation and Development (OECD) project comparing global models. Because the output of this exercise is data-rich, most...
Persistent link: https://www.econbiz.de/10009435505
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1991 Annual report on scientific programs: A broad research program on the sciences of complexity
2008
1991 was continued rapid growth for the Santa Fe Institute (SFI) as it broadened its interdisciplinary research into the organization, evolution and operation of complex systems and sought deeply the principles underlying their dynamic behavior. Research on complex systems--the focus of work at...
Persistent link: https://www.econbiz.de/10009435887
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Forecasting the market for SO sub 2 emission allowances under uncertainty
Hanson, D.; Molburg, J.; Fisher, R.; Boyd, G.; Pandola, G. - 2008
This paper deals with the effects of uncertainty and risk aversion on market outcomes for SO{sub 2} emission allowance prices and on electric utility compliance choices. The 1990 Clean Air Act Amendments (CAAA), which are briefly reviewed here, provide for about twice as many SO{sub 2}...
Persistent link: https://www.econbiz.de/10009435950
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R&D for computational cognitive and social models : foundations for model evaluation through verification and validation (final LDRD report).
Slepoy, Alexander; Mitchell, Scott A.; Backus, George A.; … - 2009
Sandia National Laboratories is investing in projects that aim to develop computational modeling and simulation applications that explore human cognitive and social phenomena. While some of these modeling and simulation projects are explicitly research oriented, others are intended to support or...
Persistent link: https://www.econbiz.de/10009436233
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Desktop modeling as a management tool for budgeting, forecasting, and reporting in an analytical laboratory
Hodge, C.A. - 2009
Managers are often required to quickly and accurately estimate resource needs. At times, additional work can be absorbed without additional resources. At other times, threshold resource boundaries are exceeded requiring an additional quantum of a specific resource. Cost savings` estimates,...
Persistent link: https://www.econbiz.de/10009436290
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Modeling the uncertain impacts of climate change
Liebetrau, A.M. - 2008
Human and earth systems are extremely complex processes. The modeling of these systems to assess the effects of climate change is an activity fraught with uncertainty. System models typically involve the linking of a series of computer codes, each of which is a detailed model of some physical or...
Persistent link: https://www.econbiz.de/10009436467
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Accrediting models for the TMD COEA: A case study in face assessment
Bravy, S.; May, W.L.; Mitchell, B.L. - 2009
This paper describes a face validation process developed to assess computer models used in Phase I of the Theater Missile Defense (TMD) Cost and Operational Effectiveness Analysis (COEA) and to aid the COEA Study Director in making accreditation decisions for those models. The process was...
Persistent link: https://www.econbiz.de/10009436569