This report addresses issues related to the analysis of uncer tainty in dose assessments conducted as part of decommis sioning analyses. The analysis is limited to the hydrologic aspects of the exposure pathway involving infiltration of water at the ground surface, leaching of contaminants, and transport of contaminants through the groundwater to a point of exposure. The basic conceptual models...

Farmers constantly face decisions about whether to invest in a new production method with increased risks and uncertainties or to maintain the current system without new risks and uncertainties. The possible method to evaluate a new business or investment opportunity is to use traditional discounted cash flow methods [23, 24]. Investment assessment is the very important part of the capital oper...

Measurements are frequently taken with little or no regard for the uncertainties or errors of those measurements, which may lead to incorrect conclusions and d ecisions. Professional societies today, including ASME, are becoming more and more concerned with measurement uncertainty. This paper is developed in full support of that concern. This paper discusses the value of an uncertainty analysis...

This paper assumes the cell formation problem as a distributed decision network. It proposes an approach based on application and extension of information theory concepts, in order to analyze informational complexity in an agent- based system, due to interdependence between agents. Based on this approach, new quantitative concepts and definitions are proposed in order to measure the amount of t...

Abs t rac t : This paper presents a review of d i f f e r e n t approximate reasoning techniques which have been proposed for dea l ing w i t h uncer ta in or imprecise knowledge ,espec i a l ly in expert systems based on product i o n ru le methodology. Theore t i ca l approaches such as Bayesian i n fe rence ,Sha fe r ' s b e l i e f theory or Zadeh's p o s s i b i l i t y theory as wel l as ...

A perennial difficulty in the field of radioisotope scanning* is the fact that the requirements for resolu tion and number of counts are specified independ ently although everyone knows that both contribute to the ultimate picture quality. This difficulty results from the fact that the image degradation due to blurring and that due to statistics are not directly comparable. Blurring introduces ...

Uncertainty is a complex phenomenon and is nearly ubiquitous, at least in real-world settings [2]. Depending on the domain in which one works, the definition of ‘uncertainty’ may differ slightly. We consider uncertainty to be a state of limited or imperfect knowledge about a measurement, event or outcome. This uncertainty may derive from incomplete data, contextual factors that indirectly influ...

S u m m a r y Two overriding considerations shaped the development of early research on the biological effects of microwave radia t ion--poss ib le medical application (diathermy) and uncer ta in ty about the hazards of exposure to radar. Reports in the late 1940s and early 1950s of hazards resulting from microwave exposure led to the near abandonment of medical research related to microwave di...

Pop u la tions of Lesser Snow Geese Anser caerulescens caerulescens in the mid-continent of North America have increased to the point where they are causing serious damage to some Arctic coastal eco sys tems. A recent modelling exercise by R.F. Rockwell and col leagues (referred to as the Original Model) suggested that increas ing harvest rates of adults to approx i mately twice the average lev...

The DEVS formalism developed by Zeigler and Sarjoughian is extended by the use of category theory. Several functors are needed to produce the correct categories. Verification and validation is modeled by adjunction and the information-gap approach to uncer-