Comparison between Different Models

We use an upper bar to distinguish the members of an orthonormal set thus 0j, This choice simplifies the comparisons between different models it enables the use of the same basis and therefore the same integrals in the variational calculation. We now take up the three areas of implementation, numerical approximation and model approximations separately. 

Fig. 2. Energy levels of an tjj-tJ, dimeric species comparison between different models...

In the following sections, relationships between three-way methods are outlined, facilitating comparisons between different models used on the same data set. An overview of hierarchical relationships between the major three-way models is given by Kiers [1991a], While a mathematical viewpoint is taken in this chapter, a more practical viewpoint for choosing between competing models is taken in Chapter 7. 

To extend the comparison between different models beyond the limits imposed by the apple experiment, ROC curves and early AUC were calculated for the simulated data using larger sample sizes (10, 25, 50, 200), both for pxjsitive and negative ion modes. The dependence of... 

Model comparison in computer science some methodologies or tools try to allow comparison between different models (Amidon 1997). Ontology is then required to align the models. Even if it may be easier because of formalisms used, it then comes back to the previous difficulty which is to define the common analysis reference. 

Items 1 and 2 can be achieved by writing a comprehensive description of the physical, chemical, and mathematical basis of the model in a unified format or protocol that systematically addresses the different features relevant to heavy gas dispersion. A unified format, in the form of a template to be filled for each model, will also enable an easy comparison between different models. The effort required to produce such a description depends on the quality and completeness of the available documentation of the model. HopefiiUy, future model developers will follow the format of the protocols that have been developed by now. In any case, it is to the advantage of a model if the original documentation is as detailed and comprehensive as possible. 

The second and third regimes are imiversal in a sense that they do not depend on microscopic details of the potentials, but only on the largest relaxation time tr and on the chain dimensions (Rj) as will be demonstrated later. To facilitate the comparison between different models, we rewrite eqn [34] in terms of the average square end-to-end vector (Rl) and the terminal time tr as... 

A variety of comparisons have been offered by the different creators of models comparisons between a model and the experimental results, comparisons between different models, and comparisons between results produced by a model and those produced by simulation calculations. Indeed, the calculation methods used for statistic simulation lend themselves very... 

Kholodeiiko A, Ballau M and Aguero Granados M (1998) Conformational statistics of semiflexible polymers Comparison between different models, PhysicaA260 267-293. 

Figure 2.15 Dissolution/deposition profile in the entire pure iead ioop and comparison between different model results and experimental results [55,58].

Fig. 11. Comparison between different models for calculation of radial power...

Fig. 2—Comparison of flow rates between different models.

Fig. 3—Comparison of velocity profiles of plane Poiseuille flow between different models.

C. Adamo, V. Dillet and V. Barone, Solvent effects on the conformational behavior of model peptides. A comparison between different continuum models, Chem. Phys. Lett., 263 (1996) 113. 

Buffo, A., Vanni, M. MARcmsio, D. L. 2011 Comparison between different methods for the investigation of turbulent gas-liquid systems by using multivariate population balance models, in 8th International Conference on CED in Oil and Gas, Metallurgical and Process Industries, Trondheim. 

Our purpose is to make a quantitative comparison between different metal-substituted CAs to know whether the mere structural and electronic properties of a first-shell model of the CA active site can be used to explain the different behaviour of the metal-substituted CA. In particular, MQSM will be performed in order to classify a series of eight dications which have been used in metal-substituted experimental and theoretical models of CA. These eight dications are Be(II), Mg(II), Mn(II), Co(n), Ni(II), Cui(II), Zn(II) and Cd(II). 

Zamora, I., and A.-L. Ungell. 2001. Comparison between different absorption models using QSAR. Pharm. Sci. (in press). 

AD-equation a Peclet number of Pe=10 is used. This gives a spread in the RTD (dispersion) that is within the range of observed values in the field. The standard deviation of the transmissivities of the channels in the network model was chosen such that the RTD of a nonsorbing tracer also has a Pe=10. In the time scale presented there seem not be dramatic differences between the model results for the Network and the AD-models. It should be noted, however, that the early arrival times are of special interest for radionuclides that decay. There the differences are considerable. Similar results were obtained in comparisons of different models using very similar data bases (Selroos et a. 2002). In that comparison a discrete fracture network model, a channel network model and a stochastic continuum model were used. 

---