Comparison of approaches

The difference in approach is self-evident. In the mechanistically based model, key internal and external variables are identified. Their variabilities are readily incorporated into the model to assess the overall variabihty in response. The contribution of each of the random variables on the variability in response may be readily assessed. Given the explicit functional dependence, when duly validated, it can be used to predict response beyond the range of the experimental data. The experi-entially based statistical model, on the other hand, represents a statistical fit to the data in which the key internal variables could not be identified. As such, it is incapable of capturing the functional dependence on these variables, and its usefulness is limited to the range of the experimental data. Because experimental (including measurement) errors are lumped into estimates of the fitting parameters and their variability, the quality of the subsequent reliabihty analyses may be overly conservative, or uncertain. A more detailed discussion of these approaches may be found in [7]. 

S-N response of a high-strength-bearing steel in the very high cycle regime (up to 10 cycles) is discussed. 

4 Corrosion and Corrosion Fatigue in Aiuminum Alloys, and Applications 

A simplified model for pit growth was first proposed by Harlow and Wei [2] and was used successfully to account for damage evolution in airframe aluminum alloys. For simplicity, the model assumed the pit to be hemispherical in shape, with radius a, and its growth (driven by an external constant-current source) would be at a 

Science-Based Probability Modeling and Life Cycle Engineering 

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COMPARISON OF APPROACHES TO STIFFNESS 3.4.1 Particulate Composite Materials... 

The standard screening approach when several active molecules have been identified is pharmacophore mapping followed by 3D database searching. This approach assumes that the active molecules have a common mode of action and that features that are common to all of the molecules describe the pharmacophoric pattern responsible for the observed bioactivity. This is a powerful technique but one that may not be applicable to the structurally heterogeneous hits that characterize typical HTS experiments or sets of competitor compounds drawn from the public literature. In such cases, it is appropriate to consider approaches based on 2D similarity searching and we present here a comparison of approaches for combining the structural information that can be gleaned from a small set of reference structures. 

Comparison of Approaches. The additive processes can achieve conductor features with a large aspect ratio, although selective plating can create a negative side wall angle in the conductor that reduces the spacing between conductor lines and that is is difficult to coat with polymer dielectrics. Elec-... 

Wilhelm, F. K., Kleff, S., and von Delft, J. (2004). The spin-boson model with a structured environment A comparison of approaches. Chem. Phys., 296 345. 

The following sections present a comparison of approaches to estimating deterministic and stochastic dose-response relationships for radionuclides and hazardous chemicals. 

Our intention in this chapter is to examine the challenges of extracting identihers from chemistry-related documents and the conversion of those identihers into chemical structures. The authors of this work each have well over a decade of experience in chemical structure representation and systematic nomenclature. We have been deeply involved in the development of software algorithms and software for the generation of systematic names and the conversion of chemical identihers into chemical structures.9 Although we have our own biases concerning approaches to the problem of N2S conversion, we have done our utmost to be objective in our review of the subject and comparison of approaches and performance. 

Fig. 2. Comparison of approaches to calculate the rate of energy dissipated per unit area of crack propagation with an inset showing a magnification of the time scale, when the specimen is loaded...

Methol R (2001) Comparisons of approaches to modelling tree taper, stand structure and stand dynamics in forest plantations. PhD thesis, University of Canterbury, Christchurch, New Zealand... 

Boyce, C. P. (1998). Comparison of approaches for developing distributions for carcinogenic potency factors. Hum Ecol Risk Assess 4, 527-589. 

Comparison of approaches at 14,500-BPO capacity. U.S. Gulf Coast basis. 

Matveeva O, Nechipurenko Y, Rossi L, Moore B, Saetrom P, Ogurtsov AY, et al. Comparison of approaches for rational siRNA design leading to a new efficient and transparent method. Nucleic Acids Res 2007 35 e63. 

The survey in this chapter shows that there are various bond graph approaches to hybrid system modelling having their pros and cons. A comparison of approaches using ideal switches versus those using non-ideal switches has been given in [30]. 

Table VII. Comparison of Approaches to Assessment of Dietary Inadequacy ...

J. Brunn and J. Tawn, Comparison of approaches for estimating the probability of coastal flooding, Appl. Stat. 47(3), 405-423 (1998). 

Cheddie D, Munroe N (2005) Review and comparison of approaches to proton exchange membrane fuel cell modeling. J Power Sources 147 72-84... 

FIGURE 3 Comparison of approaches to meeting municipal demand with at least 99 percent monthly reliability. 

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