Emergency power, validation

The potential that the sodium cooled reactOT has for the removal of residual core heat by passive means, i.e., without the need for emergency power supplies, has been confirmed by extensive water modelling and analysis of the primary circuit and by tests of a direct reactor cooling loop in sodium. Tlus not only validated the concept, but demonstrated the sodium/air heat exchanger design by large scale prototype testing. 

Evaluate and validate, under real-world and heavy-load conditions, emerging multi-fuel energy concepts for deployment of hydrogen-powered vehicles in suburban and rural regions. 

Until now we have discussed only elementary methods for determining correlation functions, based on ad hoc models. In this chapter a powerful formalism for computing time-correlation functions is presented. As a by-product of this formalism several useful theorems emerge which result from symmetry considerations. Moreover some of the assumptions made in Chapter 10 are shown to be valid. Throughout this chapter we treat classical systems. The methods developed here can also be applied to quantum systems. This is shown in Appendix 11.A. The formalism of this chapter is applied in Chapter 12 to the calculation of the depolarized spectrum. 

The quality of a model may change with time and different model learners may show different abilities to extrapolate forward with time. As David Clarke recently highlighted, There is a growing awareness that the validation of ADMET models should not be a one-off process and that models need to be revalidated periodically to make sure their predictive power is not waning as new chemical classes emerge for prediction... 

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