Agreement of theory with experiment

Model urethane networks prepared from polyoxypropylene tetrols and hexamethylene diisocyanate are studied with the aid of the computer, and good agreement of theory with experiment is found for gel paints when the crosslinkers are treated as sticks. 

This hypothesis about energy quanta led to the agreement of theory with experiment and the elimination of the ultraviolet catastrophe. 

IAS theo has only be applied in a limited number of cases mainly because of the sparsity of experimental mixture sorption data. Danner and Wenzel studied foe sorption of N2/O2, CO/N2 and CO/Q2 mixtures on zeolite lOX, and f /02 matures on zeolite 5A at 144 K and up to 1 atm pressure [6]. The agreement of theory with experiment was encouraging. The IAS model was found to be much better foan foe other models tested. Subsequ t studies have shown that it is very reliable at low coverages and equilibrium pressures with N2/O2 mixtures on zeolites A and X [7-9]. 

The famous Planck constant h followed soon after. (The actual equation for the Planck constant ish = 6.62607 10 " J s, but in this book, we will use a more convenient constant h =. ) This hypothesis about energy quanta led to the agreement of theory with experiment and the elimination of the ultraviolet catastrophe. 

Smith el pointed out that the values of I.E. — E.A.) for reactions of 0( P) with alkenes straddle the critical value of 8.75 eV and would therefore comprise an interesting test case for the proposals in their paper. CRESU experiments were subsequently performed on these reactions by Sabbah et al. and their results are shown in Figure 1.7. They are compared with the results of calculations based on the two transition state model which made use of ab initio calculations of the potential at long and medium range. The ab initio calculations confirmed that all the reactions that were studied, apart from that of 0( P) with ethene, for which (I.E. — E.A.) = 9.05 eV, exhibit submerged barriers at separations shorter than those associated with the van der Waals minima. As the curves in Figure 1.7 show, the agreement of theory with experiment is excellent. 

Dipole moments and Kerr constants of dibenzoates of several diols are measured at 298 K. Theoretical analysis is performed with standard methods of the RIS model. Comparison of theory with experiment indicates that is almost insensitive to the conformational energies, particularly for m > 3. Kerr constants are much more sensitive to the conformational energies. Good agreement between theoretical and experimental values of both dipole moments and Kerr constants of all these compounds is achieved by adjustement of the optical parameters and the... 

The good agreement of theory and experiment in the case of boihng, as seen by inspection of Tables lA and IB, contrasts with the somewhat worse agreement for cavitation at room temperature (Table 2) and the generally very poor agreement for gas bubble formation in liquids, the data for which are given in Tables 6-8, and are discussed below. This may be a reflection of the... 

Experimental spectrum of the methylene region of glassy atactic poly(propylene) (b) recorded atT 240 K on a BRUKER MSL-300 with a DAS probehead. The two angles for evolution and detection, respectively, were =81.7° and = S m = 54.7°. The rotation frequency was 3000 Hz, and 128 fi-increments were recorded. The theoretical values (o) are superimposed on the experimental contour plot. The absolute positions were adjusted like in the ID spectrum. A qualitative agreement of theory and experiment is seen... 

The next two bands in the photoelectron spectrum, at vertical ionization potentials of 11.8 eV and 12.4 eV, correspond to transitions to the B E2g and C A2u electronic states of CeHeThey have been analyzed along similar lines to those for the first band, with the restriction that the coupling constants were obtained at a lower level of theory. Deducing them from existing semiempirical data in the literature and adjusting some of the parameters, a very satisfactory agreement of theory and experiment could be obtained. ... 

The measured stiffnesses for two- and three-layered special cross-ply laminates are shown with symbols in Figure 4-28, and the theoretical results are shown with solid lines. In all cases, the load was kept so low that no strain exceeded SOOp. Thus, the behavior was linear and elastic. The agreement between theory and experiment is quite good. Both the qualitative and the quantitative aspects of the theory are verified. Thus, the capability to predict cross-ply laminate stiffnesses exists and is quite accurate. 

---