Normalised sensitivity coefficient

The summation refers to all the Nr reaction steps. For the calculation of lifetime not only the chemical lifetime t,- is taken into account but also the residence time in a reactor and the species rate of diffusion. The half-normalised local sensitivity coefficient 3T,/3 In A shows the effect of perturbing the A-factor of reaction step I on concentration T and Vy is the corresponding stoichiometric coefficient. The index (LOI)jy estimates the error of the calculadcHi of the concentration of species j due to the application of the QSSA on species i. 

Frank elastic constants and Leslie viscosity coefficients. Haller and Litster [41, 42] investigated the temperature dependence of the normalised scattering intensity and the scattering hnewidth as a function of temperature, finding that the latter was far more temperature sensitive. Many materials have been studied using this technique MBBA [43-45], di-butylazoxybenzene and p-methoxy-p -n-butylazoxybenzene [46-48], Schiffs bases [49-51 ], and the cyanobiphe-nyls [52, 53]. Typical data for the cyano-biphenyls are shown in Fig. 6. 

---