Influence of gas flow through the vibrating grid on the hydrodynamics of a shallow vibrofluidized bed

The dependence of the characteristics of vibrofluidization on the coefficients of hydraulic resistance of the bed and the grid and on a steady pressure drop (or gas flow) imposed from outside is analyzed.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 34, No. 4, pp. 604–613, April, 1978.     

Models of human reaction to vehicle environments

Models for predicting human comfort responses to environmental variables are presented for diverse vehicles. Air mode studies reveal that comfort is a function of vertical and transverse accelerations, noise levels and seat factors, as well as manoeuvre conditions. Comfort models for ground-based vehicles involve roll rates and noise levels.     

On the rate of heterogeneous catalytic reactions with ionic intermediates

A facile way to compute the rate law of a catalytic reaction with ionic intermediates is proposed, based on the theory of complex reactions. When the ionic nature of intermediates is taken into account it is necessary to add balance equations which correspond to the electroneutrality of the catalyst. Several mechanisms of the olefin hydrogenation were considered as examples.