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Modeling overview

A model is a simplified version of reality that is useful as a tool. A successful model strikes a balance between realism and practicality. Properly constructed, a model is neither so simplified that it is unrealistic nor so detailed that it cannot be readily evaluated and applied to the problem of interest. [Pg.7]

Geologic maps constitute a familiar class of models. To map a sedimentary section, a geologist collects data at certain outcrops. He casts his observations in terms of the local stratigraphy, which is itself a model that simplifies reality by allowing groups of sediments to be lumped together into formations. He then interpolates among his data points (and projects beneath them) to infer positions for formation contacts, faults, and so on across his field area. [Pg.7]


Fig. 53 Global value chain planning model-overview... Fig. 53 Global value chain planning model-overview...
Ruth, M. (2007). MacroSystem Model Overview. National Renewable Energy Laboratory, US DOE Hydrogen Program, www.hydrogen.energy.gov/ macro sy stem model. html. [Pg.452]

FIGURE 8 Maturity model overview. (Source Adapted from Capability Maturity Model Integration, www.sei.cmu.edu.)... [Pg.278]

Simple models have been developed to screen for consequences of worst-case exposures (van de Meent et al., 1995 USEPA, 1997b). For example, these models calculate worst-case exposure by dividing the amount of active ingredient by the room size. When better estimates of exposure are needed, simple models are advanced based on mechanistic processes or statistical relations, in conjunction with experiments aimed at quantifying exposnre factors (Jayjock, 1994 Matoba et al., 1998a,c van Veen, 1996) (see the model overview below). These models describe the mechanisms of exposure and inclnde key factors that influence exposure, such as ventilation rates of rooms and vapor pressures of chemicals. In addition, they provide a more precise temporal and spatial scale of exposure and dose. These scales enable identification and exposnre assessment of persons at various distances from the application and of persons having varions time-intervals of contact with the pesticide. [Pg.211]

The COST728 model overview (Baklanov et al. 2007a) shows a surprisingly large (at least ten) number of on-line coupled MetM and ACTM systems already being used in Europe (see also more information in Table 1.1) ... [Pg.5]

Heat and Mass Transfer Intensification and Modeling Overview... [Pg.340]

See also Molecular modeling overview of. 919-920 plianiiaaiplioie concept in. 944 predictive ADMB in. >44- >45 quantum mechanics methods in. 923. 935-939... [Pg.965]

In gray are highlighted model overviews. Insignificant r2 and q2 values were omitted. See text and Figs. 10-11 for details. [Pg.596]


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Overview of Existing Models

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Overview of spatial modeling issues

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