Model explainability

Employing the proposed model, the behavior of the experimental signals of Cu, Ag, and Zn at different temperatures was described. The model explains increased tailing of the back edge of Cu profiles. 

Although our simple oxide film model explains most of the experimental observations we have mentioned, it does not explain the linear laws. How, for example, can a material lose weight linearly when it oxidises as is sometimes observed (see Fig. 21.2) Well, some oxides (e.g. M0O3, WO3) are very volatile. During oxidation of Mo and W at high temperature, the oxides evaporate as soon as they are formed, and offer no barrier at all to oxidation. Oxidation, therefore, proceeds at a rate that is independent of time, and the material loses weight because the oxide is lost. This behaviour explains the catastrophically rapid section loss of Mo and W shown in Table 21.2. 

Figure 9.1 Id illustrates a simple model of bonding in metals known as the electron-sea model. The metallic crystal is pictured as an array of positive ions, for example, Na+, Mg2+. These are anchored in position, like buoys in a mobile sea of electrons. These electrons are not attached to any particular positive ion but rather can wander through the crystal. The electron-sea model explains many of the characteristic properties of metals ...

DeLean, A., Stadel, J. M. Lefkowitz, R. J. (1980). A ternary complex model explains the agonist-specific binding properties... 

Fraction of the variance The fraction of the variance of an MRA model is expressed by r. It is beheved that the closer the value of to unity, the better the QSAR model. The values of for these QSAR models are from 0.787 to 0.993, which suggests that these QSAR models explain 78.7-99.3% of the variance of the data. According to the literature, the predictive QSAR model must have > 0.6 [73,74]. 

FIG. 2 Model explaining the ability of tenidap to lower intracellular pH. Step 1 drug dissociation dictated by its pK value Step 2 entry of the conjugate acid of tenidap into the cell by diffusion, followed by reestablishment of the acid-base equilibrium Step 3 transport of tenidap anion out of the cell, activated by an anion transporter. (Reprinted from Ref. 107.)... 

Although the band model explains well various electronic properties of metal oxides, there are also systems where it fails, presumably because of neglecting electronic correlations within the solid. Therefore, J. B. Good-enough presented alternative criteria derived from the crystal structure, symmetry of orbitals and type of chemical bonding between metal and oxygen. This semiempirical model elucidates and predicts electrical properties of simple oxides and also of more complicated oxidic materials, such as bronzes, spinels, perowskites, etc. 

Figure 3 shows the output of the Yates analysis of Property B response, and Figure 4 shows the regression analysis. The adjusted R is high (95%), so this model explains the data very well. Also,... 

In general, semicontinuum models explain the band maximum position rather well. GJ calculate the energy at maximum absorption as 0.9 and 2.0 eV respectively for eam and eh, which compare reasonably well with the experimental values, 0.8 and 1.7 eV respectively. 

The model explains satisfactorily the large part of molecular yields and their variations with solute concentration and LET, with the probable exception of phenomena at high solute concentration. 

The proposed model for creep rupture based on the condition of maximum shear strain and the Eyring reduced time model explain the observed relations concerning the lifetime of aramid, polyamide 66 and polyacrylonitrile fibres. However, with increasing temperatures, in particular above 300 °C, chemical degradation of PpPTA also determines the lifetime. Furthermore, the model... 

This model explains the above-mentioned peculiarities of free radical reactions in polymers. 

Fourth, the model of a rigid cage for a bimolecular reaction in the polymer matrix helps to explain another specific feature. This model explains the simultaneous increase in activation energy and preexponential factor on transferring the reaction from the liquid (Eh At) to solid polymer matrix (Es, As). In the nonpolar liquid phase / obs = E = gas but in the polymer matrix [3,21] it is... 

A key feature of PdCys as precursors of Pd(0) nanoparticles is that reduction of Pd(II) -> Pd(0) involving C-Pd bond cleavage is required. This accounts for both the high temperatures invariably required and the induction period in the absence of reductants. Rosner et al. have developed a detailed kinetic model of a Heck reaction catalyzed by dimeric palladacycles (Rosner et al. 2001 a,b). This model explains the experimental observations and is consistent with an active species... 

A model explaining the stereochemical outcome of this catalytic system is based on the following transition state 131 ... 

This stereochemical model explains the stereochemistry of the hydrogenation of MAA over TA-Ni system. It also predicts that the TA-Ni catalyst can be effective for the enantioselective hydrogenation of some prochiral ketones with excellent e.e. values (70%). 

Similar models explain the 1,8-, 1,10- and 1,12-addition reactions to the extended Michael acceptors 91, 93 and 95, respectively (Schemes 2.32 and 2.33). Again, these transformations start with the formation of a cuprate Jt-complex at the double bond neighbouring the acceptor group [61a]. Subsequently, an equilibrating mixture of a-copper(III) intermediates is presumably formed and the regioselectivity of the reaction may then be governed by the different relative rates of the reductive elimination step of these intermediates. Consequently, the exclusive formation of allenic prod-... 

If you used only tap water in your model, convection currents would bring warmer, less dense water from the bottom to the surface. Do you think this will happen with your solar pond model Explain your answer. 

---