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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/10009436710
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[Mathematical models of hysteresis]. Progress report No. 4, [January 1, 1991--December 31, 1991]
Mayergoyz, I.D. - 2008
``Mathematical Models of Hysteresis``. Thus, before discussing the proposed research in detail, it is worthwhile to describe and … of hysteresis. All these models have a common generic feature; they are constructed as superpositions of simplest … these models and such topics as: the critical state model for superconducting hysteresis, the classical Stoner …
Persistent link: https://www.econbiz.de/10009435628
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Statistical Validation of Engineering and Scientific Models: A Maximum Likelihood Based Metric
HILLS, RICHARD GUY; TRUCANO, TIMOTHY G. - 2008
Two major issues associated with model validation are addressed here. First, we present a maximum likelihood approach to define and evaluate a model validation metric. The advantage of this approach is it is more easily applied to nonlinear problems than the methods presented earlier by Hills...
Persistent link: https://www.econbiz.de/10009435763
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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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Research activities of Martin C. Casdagli at SFI September 1989--May 1991
2008
My research over this period has focused on the theory and application of non-linear time series forecasting. The purpose of time series forecasting is to predict apparently random behavior about which we have little or no knowledge. A time series is a set of values that change in time, for...
Persistent link: https://www.econbiz.de/10009435492
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Modeling and identification of parallel and feedback nonlinear systems
Chen, Hai-Wen - 2009
Structural classification and parameter estimation (SCPE) methods have been used for studying single-input single. output (SISO) parallel and feedback nonlinear system models from input-output (I-O) measurements. The uniqueness of the I-O mappings of different models and parameter uniqueness of...
Persistent link: https://www.econbiz.de/10009437127
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Analysis of nonlinear systems using ARMA (autoregressive moving average) models
Hunter, N.F. Jr. - 2009
While many vibration systems exhibit primarily linear behavior, a significant percentage of the systems encountered in vibration and model testing are mildly to severely nonlinear. Analysis methods for such nonlinear systems are not yet well developed and the response of such systems is not...
Persistent link: https://www.econbiz.de/10009437293
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Proposed Revenues, Financial Strategy, and Program Costs for FY 1992 and 1993 : Technical Appendix, BPA Programs in Perspective.
United States. Bonneville Power Administration. - 2009
Programs in Perspective is the Bonneville Power Administration's public involvement process (PIP) for engaging customers and other stakeholders in a regional dialog to set strategic direction and broad program plans for BPA effort. This planning leads into a biennial rate setting cycle and...
Persistent link: https://www.econbiz.de/10009435625
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Research and development of methods/utilities and rules for managing cooperation for performance improvement in government offices
2008
On September 1, 1991, Defense Programs (DP) within the US Department of Energy entered into a research grant with Management Systems Laboratories (MSL) of Virginia Polytechnic Institute and State University (Virginia Tech), to study Tools, Methods, and Rules for Managing Cooperation for...
Persistent link: https://www.econbiz.de/10009435663
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Research and development of methods and tools for achieving and maintaining consensus processes in the face of change within and among government oversight agencies: Volume 1
2008
This progress report summarizes our research activities under our consensus grant. In year four of the grant, we continued to capitalize on and benefit from historical events which drove our early emphasis on group process studies. Following our work on various procedures for bringing together...
Persistent link: https://www.econbiz.de/10009435829