Oppositions relations

The basic alloy at atmospheric pressure and T = 20°C demonstrated the per cent elongation <5 = 31% and the per cent reduction ip = 65% while plastic properties of the hydrogenated alloy were close to zero. But an opposite relation was observed in tensile tests under a pressure of 6.5 kbar. The plastic properties of the hydrogenated alloy increased to <5 = 33% and /> = 83% at P = 6.5 kbar and T = 20°C while those of the basic alloy changed only slightly (Fig. 11). 

Expression (22) may be interpreted by the fact that the variable Ej(r)- modulus, which connects two phases with highly different mechanical properties and elastic moduli, must interconnect and span these differences. Indeed, for hardcore composites it is valid that Ef > Em, whereas for rubber reinforcements we have the opposite relation Em > Ef. However, for obvious reasons it never happens that Ef Em. 

Perfectly positive relation (maximal correlation) Opposite relation (minimal correlation)... 

Interestingly, the blocking temperature (Tb) increases with the increase in particle size as expected from theory in the case NiO nanoparticles, but shows the opposite relation in the case of MnO nanoparticles. It is not clear why such an inverse relation between 7b and particle size manifests itself. It is noteworthy that supermagnetism at low temperatures is the general feature of small nanoparticles of transition metal oxides, which are otherwise antiferromagnetic with fairly high Neel temperatures. 

At the crossing point k = ko (for S > 0) we have Aa(ko) 2 = 1/2 and the FE oscillator strength is equally distributed between the two hybrid states. For the hybrid exciton radii the opposite relation holds. Calculating the expectation value of the exciton radius squared f2 in the state a, k) we obtain... 

This result obviously holds generally. If one ion moves i/n of the way and the other (n - i)/n, then in that part of the liquid in which the first ion appears there will be i/n equivalent more of it and (n i)/n equivalent less of the other. The opposite relation will apply to the other side of the electrolyte. ... 

It is advisable to calculate the characteristic values of and the typical dimensionless current density jo for different electrodes (Table 5.7). As can be seen, the conditions 1 and yo -C 1 are simultaneously fulfilled only on the hydrogen side of a PEFC operating at a current density below 300 mA cm . Thus, the results of this section are of interest for PEFC anodes only. In other electrodes, for typical working currents, the opposite relation 1 holds (see the next section). 

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